US3791703A - Journal support bearings for rotating shafts - Google Patents
Journal support bearings for rotating shafts Download PDFInfo
- Publication number
- US3791703A US3791703A US00201372A US3791703DA US3791703A US 3791703 A US3791703 A US 3791703A US 00201372 A US00201372 A US 00201372A US 3791703D A US3791703D A US 3791703DA US 3791703 A US3791703 A US 3791703A
- Authority
- US
- United States
- Prior art keywords
- slipper
- spherical surface
- pressure
- part spherical
- journal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0644—Details of devices to control the supply of liquids to the bearings
- F16C32/0648—Details of devices to control the supply of liquids to the bearings by sensors or pressure-responsive control devices in or near the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/007—Swash plate
- F01B3/0073—Swash plate swash plate bearing means or driving or driven axis bearing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/10—Control of working-fluid admission or discharge peculiar thereto
- F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
- F01B3/109—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
- F16C32/0666—Details of hydrostatic bearings independent of fluid supply or direction of load of bearing pads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
Definitions
- Each slipper has a hollow spherical surface which is adapted to bear on a part spherical surface formed on a shaft about its axis of rotation.
- Each slipper is either cut out at its center or has grooves in its surface to define a narrow sealing land around the periphery of the surface.
- SHEU 3 (1F 4 JOURNAL SUPPORT BEARINGS FOR ROTATING .SHAFTS
- This invention relates to a hydro-static pressure balanced journal slipper, characterised in having a hollow part spherical surface, in sliding contact with a part spherical journal surface, the slipper surface having a sliding sealing land, bounding an area fed from a high pressure liquid supply, to support the journal loading.
- the shaft is located by other bearings and the hydro-statically balanced slipper is appropriately positioned to support the major journal loadings.
- journal slipper according to the invention is circular in end view and is substantially symmetrical about its radial centreline, so that deformation under load is uniform and will not result in leakages at the sealing land.
- journal loading is constant; in these cases the pressure supply may be adjusted to a value appropriate to the loading and to the effective area of the slipper.
- the journal loading is proportional to the pressure in the ports; in these cases the port pressure may be fed directly to a slipper having an appropriate effective area.
- the journal loading may respond to several variables; for example, in variable displacement axial piston pumps, the journal loading may be proportional to the product of the port pressure and the pump displacement.
- FIGS. 1 to 4 of the accompanying drawings show various arrangements of the journal slipper according to the invention, but the invention is not limited to these detail designs or methods for controlling the hydrostatic pressure.
- FIG. 5 shows the present invention as applied to a variable displacement pump drive shaft.
- FIG. 6 shows the present invention utilizing a plurality of slippers.
- a shaft has a part spherical journal portion 2 sliding within the part spherical sealing lands 3 of the slipper 4,
- the slipper which is circular in end view, has a cylindrical portion fitted with a seal 5 and it is free to slide radially in the stationary cylinder 6, the effective area of which is substantially equal to the effective projected area of the sealing land at the sliding surface.
- a spring 7 provides a relatively light initial bias, loading the slipper against the journal.
- a drilling 8 provides communication from the cylinder 6 to the relieved centre of the slipper surface. The high pressure supply is via the duct 9.
- the arrangement of the slipper as shown in FIG. 1 is suitable for balancing a known journal loading against a fixed supply pressure, or for applications where the journal loading is proportional to the supply pressure, as is the case when used for fixed displacement axial piston pumps and the supply pressure is the pressure at the high pressure port of the pump.
- a selector valve may be used to select whichever is the higher porting pressure as the supply pressure to duct 9. Where both ports may be at high pressure a valve may be used to select a pressure which is the mean of the two port pressures, as the supply pressure to duct 9.
- the journal loading may not be proportional to the supply pressure at duct 9; for example, in an application to variable displacement axial piston pumps, the journal loading is proportional to the product of the displacement and the port pressures. In such cases it is necessary to provide means for automatically regulating the hydro-static balance pressure at the slipper and various means are shown at FIGS. 2, 3 and 4 to achieve this.
- the slipper body 4 is of hemispherical form fitting within a hemispherical cup, in the stationary housing, so that the slipper surface can align itself to the journal.
- the supply pressure is fed through a re- 'stricted orifice 10 and a sealed bobbin 11 to the part spherical sliding surface of the slipper.
- the journal moves slightly out of contact with the slipper surface, permitting a leakage flow at the sealing land 3; this produces a pressure drop at the orifice 10 to maintain equilibrium conditions.
- the effective area may be determined by a circular groove fed by the slipper pressure as in FIG 3.
- a small valve 12 closed by a spring is fitted in the high pressure supply duct, to determine the radial position of the slipper under operating conditions. Any variation in journal loading moves the slipper radially to vary the opening of the .valve 12, to maintain the desired pressure balance, with a small leakage from. the sliding sealing land 3 at the slipper surface.
- FIG. 4 shows a slipper similar to FIG. 1 with the exception that itincludes a spool valve 13 moved radially by the slipper through a hemi-spherical ball and socket connection 14.
- the spool valve housing has a high pressure gallery from duct 9 and a discharge gallery from duct 15.
- the valve has a gallery from a central drilling connected to the slipper cylinder. In this case any variation of journal loading causes the spool valve to move, varying the relative openings of the high pressure and low pressure ports to maintain the balance pressure to suit the loading.
- a slipper of sufiiciently largev diameter to support the journal loadings from the available pressure supply.
- a number of slippers may be disposed angularly about the centre of loading as in FIG; 6,.
- Preferably an odd number of slippers would be employed in these cases.
- the centre slipper may be as shown or one of the types illustrated at FIGS. 2, 3 or 4 and the other slippers may be of. the type shown at FIG. 1 except for the omissions of the duct 9.
- the required hydro-static pressure would be determined by the centre slipper and this pressure would be fed to the other slippers via ducts 17 and 18.
- FIG. 5 shows the invention applied to a variable dis placement piston pump drive shaft 1, the tail end of which is located in a ball bearing 19 and the part spherical journal is located in a hollow part spherical sleeve 20.
- the journal slipper may be of the types illustrated at FIGS. 2, 3 or 4 or it may employ a number of journal slippers as shown at FIG. 6.
- the illustration shows one of the outer slippers of FIGS. 6, which is similar to that shown in FIG. 1.
- Journal support bearings for a rotating shaft having a spherical surface part comprising a stationary housing and one or more hydro-statically balanced slippers located in said stationary housing in relative radial movable contact therewith, each of said slippers having a part spherical surface adapted to bear on said part spherical surface formed on said shaft, said part spherical surface of each slipper having a narrow sealing land around the periphery of said surface defined by a recess formed in its surface so that said land bears on said part spherical surface formed on said shaft, the zone within said narrow sealing land being fed by fluid under pressure;
- journal support bearings as claimed in claim 12 including a pressure control means to regulate pressure against said slipper.
- Journal support bearings for rotating shafts having a part spherical surface comprising one or more hydrostatically balanced slippers located in a stationary housing, wherein each slipper has a part spherical surface,
- each slipper - adapted to bear on the part spherical surface formed on a shaft about its axis of rotation, said part spherical surface of each slipper having a recess formed in its surface to define a narrow sealing land around the periphery of the said surface to bear on the said part spherical surface formed on the shaft, the zone within said narrow sealing land of each slipper being fed by fluid under pressure, the end of the slipper, remote from the end having the said part spherical surface, being formed as a sealed piston within a cylinder in the said housing, the cylinder area being substantially equal to the effective area of the said sealing land at the said spherical surface, so that sealing contact is made at the sealing land with negligible leakage or metal contact loadings.
Abstract
Journal support bearings for rotating shafts which comprise at least one hydro-statically balanced slipper positioned within a stationary housing. Each slipper has a hollow spherical surface which is adapted to bear on a part spherical surface formed on a shaft about its axis of rotation. Each slipper is either cut out at its center or has grooves in its surface to define a narrow sealing land around the periphery of the surface.
Description
United States Patent n91 Ifield Feb. 12, 1974 l l JOURNAL SUPPORT BEARINGS FOR ROTATING SHAFTS [75] Inventor: Richard Joseph Ifield, New South Wales, Australia [73] Assignee: Ifield Laboratories Pty. Limited,
New South Wales, Australia [22] Filed: Nov. 23, 1971 [21] Appl. No.: 201,372
[30] Foreign Application Priority Data Nov. 30, 1970 Australia 3338/70 52 us. Cl. 308/9, 308/73 [51] Int. Cl F16c 7/04, F16c 17/06 [58] Field of Search 308/73, 122, 9
[56] References Cited UNITED STATES PATENTS 2,644,727 7/1953 Tauscher et al. 308/9 2,710,234 6/1955 Hansen 308/9 5/1944 Sampatacos 308/73 3,0l6,273 l/1962 Benoit 308/9 FOREIGN PATENTS OR APPLICATIONS 635,134 1/1962 Canada 308/73 Primary Examiner--Charles .I. Myhre Assistant ExaminerFrank Susko Attorney, Agent, or Firm-Stevens, Davis, Miller & Mosher [57] ABSTRACT Journal support bearings for rotating shafts which comprise at least one hydro-statically balanced slipper positioned within a stationary housing. Each slipper has a hollow spherical surface which is adapted to bear on a part spherical surface formed on a shaft about its axis of rotation. Each slipper is either cut out at its center or has grooves in its surface to define a narrow sealing land around the periphery of the surface.
5 Claims, 6 Drawing Figures PAIENm FEB 1 21974 SHEET 1 [IF 4 PATENTEBFEBIZW 3.791.703.
SHEU 3 (1F 4 JOURNAL SUPPORT BEARINGS FOR ROTATING .SHAFTS This invention relates to a hydro-static pressure balanced journal slipper, characterised in having a hollow part spherical surface, in sliding contact with a part spherical journal surface, the slipper surface having a sliding sealing land, bounding an area fed from a high pressure liquid supply, to support the journal loading.
Normally the shaft is located by other bearings and the hydro-statically balanced slipper is appropriately positioned to support the major journal loadings.
Preferably the journal slipper according to the invention is circular in end view and is substantially symmetrical about its radial centreline, so that deformation under load is uniform and will not result in leakages at the sealing land.
In some applications the journal loading is constant; in these cases the pressure supply may be adjusted to a value appropriate to the loading and to the effective area of the slipper. In some applications, as for the journals of fixed displacementaxial piston pumps or motors, the journal loading is proportional to the pressure in the ports; in these cases the port pressure may be fed directly to a slipper having an appropriate effective area. In other applications the journal loading may respond to several variables; for example, in variable displacement axial piston pumps, the journal loading may be proportional to the product of the port pressure and the pump displacement.
FIGS. 1 to 4 of the accompanying drawings show various arrangements of the journal slipper according to the invention, but the invention is not limited to these detail designs or methods for controlling the hydrostatic pressure.
FIG. 5 shows the present invention as applied to a variable displacement pump drive shaft.
FIG. 6 shows the present invention utilizing a plurality of slippers.
Referring to FIG. 1, a shaft has a part spherical journal portion 2 sliding within the part spherical sealing lands 3 of the slipper 4, The slipper which is circular in end view, has a cylindrical portion fitted with a seal 5 and it is free to slide radially in the stationary cylinder 6, the effective area of which is substantially equal to the effective projected area of the sealing land at the sliding surface. A spring 7 provides a relatively light initial bias, loading the slipper against the journal. A drilling 8 provides communication from the cylinder 6 to the relieved centre of the slipper surface. The high pressure supply is via the duct 9.
The arrangement of the slipper as shown in FIG. 1 is suitable for balancing a known journal loading against a fixed supply pressure, or for applications where the journal loading is proportional to the supply pressure, as is the case when used for fixed displacement axial piston pumps and the supply pressure is the pressure at the high pressure port of the pump. For bi-directional pumps of this type a selector valve may be used to select whichever is the higher porting pressure as the supply pressure to duct 9. Where both ports may be at high pressure a valve may be used to select a pressure which is the mean of the two port pressures, as the supply pressure to duct 9. I
In the other slipper arrangements of FIGS. 2, 3, 4 and 6, elements having similar functions have similar identification numbers to those shown in FIG. 1.
The journal loading may not be proportional to the supply pressure at duct 9; for example, in an application to variable displacement axial piston pumps, the journal loading is proportional to the product of the displacement and the port pressures. In such cases it is necessary to provide means for automatically regulating the hydro-static balance pressure at the slipper and various means are shown at FIGS. 2, 3 and 4 to achieve this.
In FIG. 2, the slipper body 4 is of hemispherical form fitting within a hemispherical cup, in the stationary housing, so that the slipper surface can align itself to the journal. The supply pressure is fed through a re- 'stricted orifice 10 and a sealed bobbin 11 to the part spherical sliding surface of the slipper. When the pressure required to support the journal loading is less than the supply pressure at duct 9, the journal moves slightly out of contact with the slipper surface, permitting a leakage flow at the sealing land 3; this produces a pressure drop at the orifice 10 to maintain equilibrium conditions. v
Instead of relieving the whole of the slipper surface inside the sealing lands, as shown in FIGS. 1 and 2, the effective area may be determined by a circular groove fed by the slipper pressure as in FIG 3. In this example a small valve 12, closed by a spring, is fitted in the high pressure supply duct, to determine the radial position of the slipper under operating conditions. Any variation in journal loading moves the slipper radially to vary the opening of the .valve 12, to maintain the desired pressure balance, with a small leakage from. the sliding sealing land 3 at the slipper surface.
FIG. 4 shows a slipper similar to FIG. 1 with the exception that itincludes a spool valve 13 moved radially by the slipper through a hemi-spherical ball and socket connection 14. The spool valve housing has a high pressure gallery from duct 9 and a discharge gallery from duct 15. The valve has a gallery from a central drilling connected to the slipper cylinder. In this case any variation of journal loading causes the spool valve to move, varying the relative openings of the high pressure and low pressure ports to maintain the balance pressure to suit the loading. i
In some applications it may be impractical to employ a slipper of sufiiciently largev diameter to support the journal loadings from the available pressure supply. In such cases a number of slippers may be disposed angularly about the centre of loading as in FIG; 6,. Preferably an odd number of slippers would be employed in these cases. The centre slipper may be as shown or one of the types illustrated at FIGS. 2, 3 or 4 and the other slippers may be of. the type shown at FIG. 1 except for the omissions of the duct 9. The required hydro-static pressure would be determined by the centre slipper and this pressure would be fed to the other slippers via ducts 17 and 18.
'In many applications the journal loading is a function of the driving torque, as it is in the case of many hydraulic pumps. In these cases the hydro-static balance pressure is proportional to the driving torque and this is of value, as a means of recording the torque, or for use with a torque limiting device, either by controlling the power input or the displacement of a driven pump. FIG. 5 shows the invention applied to a variable dis placement piston pump drive shaft 1, the tail end of which is located in a ball bearing 19 and the part spherical journal is located in a hollow part spherical sleeve 20. The journal slipper may be of the types illustrated at FIGS. 2, 3 or 4 or it may employ a number of journal slippers as shown at FIG. 6. The illustration shows one of the outer slippers of FIGS. 6, which is similar to that shown in FIG. 1.
I claim:
1. Journal support bearings for a rotating shaft having a spherical surface part comprising a stationary housing and one or more hydro-statically balanced slippers located in said stationary housing in relative radial movable contact therewith, each of said slippers having a part spherical surface adapted to bear on said part spherical surface formed on said shaft, said part spherical surface of each slipper having a narrow sealing land around the periphery of said surface defined by a recess formed in its surface so that said land bears on said part spherical surface formed on said shaft, the zone within said narrow sealing land being fed by fluid under pressure;
2. The journal support bearings as claimed in claim 12 including a pressure control means to regulate pressure against said slipper.
3. Journal support bearings for rotating shafts having a part spherical surface, comprising one or more hydrostatically balanced slippers located in a stationary housing, wherein each slipper has a part spherical surface,
- adapted to bear on the part spherical surface formed on a shaft about its axis of rotation, said part spherical surface of each slipper having a recess formed in its surface to define a narrow sealing land around the periphery of the said surface to bear on the said part spherical surface formed on the shaft, the zone within said narrow sealing land of each slipper being fed by fluid under pressure, the end of the slipper, remote from the end having the said part spherical surface, being formed as a sealed piston within a cylinder in the said housing, the cylinder area being substantially equal to the effective area of the said sealing land at the said spherical surface, so that sealing contact is made at the sealing land with negligible leakage or metal contact loadings.
4. Journal support bearings as claimed in claim 3, wherein a push rod, connected to a valve or formed as a valve, is operated by radial movement of the slipper, so that a radially outwards movement cause the pressure to increase and a radially inwards movement causes the pressure to decrease, thereby regulating the pressure at the slipper to hydro-statically balance the journal loadings.
5. Journal support bearings as claimed in claim 4 wherein an uneven number of said slippers is employed, the center slipper having a fixed abutment and a control valve to regulate pressure while said other slippers are interconnected with said center slipper for pressure regulation.
Claims (5)
1. Journal support bearings for a rotating shaft having a spherical surface part comprising a stationary housing and one or more hydro-statically balanced slippers located in said stationary housing in relative radial movable contact therewith, each of said slippers having a part spherical surface adapted to bear on said part spherical surface formed on said shaft, said part spherical surface of each slipper having a narrow sealing land around the periphery of said surface defined by a recess formed in its surface so that said land bears on said part spherical surface formed on said shaft, the zone within said narrow sealing land being fed by fluid under pressure.
2. The journal support bearings as claimed in claim 12 including a pressure control means to regulate pressure against said slipper.
3. Journal support bearings for rotating shafts having a part spherical surface, comprising one or more hydro-statically balanced slippers located in a stationary housing, wherein each slipper has a part spherical surface, adapted to bear on the part spherical surface formed on a shaft about its axis of rotation, said part spherical surface of each slipper having a recess formed in its surface to define a narrow sealing land around the periphery of the said surface to bear on the said part spherical surface formed on the shaft, the zone within said narrow sealing land of each slipper being fed by fluid under pressure, the end of the slipper, remote from the end having the said part spherical surface, being formed as a sealed piston within a cylinder in the said housing, the cylinder area being substantially equal to the effective area of the said sealing land at the said spherical surface, so that sealing contact is made at the sealing land with negligible leakage or metal contact loadings.
4. Journal support bearings as claimed in claim 3, wherein a push rod, connected to a valve or formed as a valve, is operated by radial movement of the slipper, so that a radially outwards movement cause the pressure to increase and a radially inwards movement causes the pressure to decrease, thereby regulating the pressure at the slipper to hydro-statically balance the journal loadings.
5. Journal support bearings as claimed in claim 4 wherein an uneven number of said slippers is employed, the center slipper having a fixed abutment and a control valve to regulate pressure while said other slippers are interconnected with said center slipper for pressure regulation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU333870 | 1970-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3791703A true US3791703A (en) | 1974-02-12 |
Family
ID=3693792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00201372A Expired - Lifetime US3791703A (en) | 1970-11-30 | 1971-11-23 | Journal support bearings for rotating shafts |
Country Status (8)
Country | Link |
---|---|
US (1) | US3791703A (en) |
JP (1) | JPS5817883B1 (en) |
CA (1) | CA960270A (en) |
DE (1) | DE2158179C2 (en) |
FR (1) | FR2116141A5 (en) |
GB (1) | GB1343518A (en) |
IT (1) | IT945867B (en) |
SE (1) | SE373417B (en) |
Cited By (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB391797I5 (en) * | 1973-04-05 | 1976-03-09 | ||
US3994367A (en) * | 1974-06-27 | 1976-11-30 | Escher Wyss Limited | Hydrostatically lubricated bearing |
FR2334002A1 (en) * | 1975-12-02 | 1977-07-01 | Escher Wyss Sa | HYDROSTATIC SUPPORT DEVICE |
US4106824A (en) * | 1975-12-02 | 1978-08-15 | Escher Wyss Limited | Hydrostatic supporting device |
US4113325A (en) * | 1975-12-02 | 1978-09-12 | Escher Wyss Limited | Supporting device |
US4149759A (en) * | 1975-12-02 | 1979-04-17 | Escher Wyss Limited | Radial bearing arrangement |
US4310204A (en) * | 1979-02-26 | 1982-01-12 | Escher Wyss Limited | Hydrostatic support apparatus |
US4318572A (en) * | 1980-01-11 | 1982-03-09 | Mts Systems Corporation | Tension-compression swivel joint with hydraulic force reaction |
DE3241325T1 (en) * | 1981-04-15 | 1984-10-04 | Sven 46142 Trollhättan Schriwer | Method and device for sealing a bearing chamber which is formed in hydrostatic and aerostatic bearings and designed to receive a fluid |
US4496251A (en) * | 1984-05-14 | 1985-01-29 | Ide Russell D | Pad-type hydrodynamic bearing |
US4540221A (en) * | 1982-06-02 | 1985-09-10 | Ifield Engineering Pty. Limited | Self regulating hydrostatic pad bearings |
US5033871A (en) * | 1988-10-25 | 1991-07-23 | Ide Russell D | Extrudable multi-rigidity hydrodynamic bearing and method of making the same |
US5054938A (en) * | 1987-05-29 | 1991-10-08 | Ide Russell D | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
US5222815A (en) * | 1987-05-29 | 1993-06-29 | Ide Russell D | Bearings having beam mounted bearing pads and methods of making same |
US5249512A (en) * | 1992-05-18 | 1993-10-05 | Christenson Howard W | hydrostatic pump and motor |
US5304006A (en) * | 1989-02-08 | 1994-04-19 | Ide Russell D | Self positioning beam mounted bearing and bearing and shaft assembly including the same |
US5489155A (en) * | 1987-05-29 | 1996-02-06 | Ide; Russell D. | Tilt pad variable geometry bearings having tilting bearing pads and methods of making same |
US5660481A (en) * | 1987-05-29 | 1997-08-26 | Ide; Russell D. | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
US5716142A (en) * | 1993-12-08 | 1998-02-10 | Danfoss A/S | Radial journal bearing with slide shoe |
WO2000011360A1 (en) * | 1998-08-19 | 2000-03-02 | Corac Group Plc | Hydrodynamic journal bearing |
EP1081398A3 (en) * | 1999-08-31 | 2001-10-04 | Voith Paper Patent GmbH | Hydrostatic supporting device for the outer shell of a roll |
DE10043936A1 (en) * | 2000-09-07 | 2002-04-04 | Skf Gmbh | Bearing for mast of wind turbine comprises outer ring with internal groove and inner ring with radial bores though which rods are inserted which have upper sections carrying anti-friction pads on faces which contact groove in outer ring |
US20050172798A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Rotating group of a hydraulic machine |
US20050175442A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Housing for rotary hydraulic machines |
US20050175471A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Piston assembly for rotary hydraulic machines |
US20060156713A1 (en) * | 2004-12-01 | 2006-07-20 | George Kadlicko | Hydraulic drive system |
US20070028608A1 (en) * | 2004-02-11 | 2007-02-08 | George Kadlicko | Rotary hydraulic machine and controls |
US20070253649A1 (en) * | 2006-04-28 | 2007-11-01 | Gov't Of The Usa, As Represented By The Administra Tor Of The U.S. Environmental Protection Agency | Fluid bearing and method of operation |
US20080095482A1 (en) * | 2001-06-22 | 2008-04-24 | Delaware Capital Formation, Inc. | Journal bearing arrangement |
US20080253706A1 (en) * | 2007-04-13 | 2008-10-16 | Delaware Capital Formation, Inc. | Integral tilting pad bearing |
US20110069915A1 (en) * | 2009-09-22 | 2011-03-24 | Sergio Palomba | Bearing device, oil distribution mechanism and method |
US20110069916A1 (en) * | 2009-09-22 | 2011-03-24 | Sergio Palomba | Bearing device, retention mechanism and method for retaining at least one pad |
CN103470319A (en) * | 2012-06-01 | 2013-12-25 | 阿尔斯通技术有限公司 | Journal bearing pad for turbine |
US8684606B2 (en) | 2010-09-09 | 2014-04-01 | Orion Corporation | Hydrodynamic bearing with adaptive displacement control |
US9410657B2 (en) * | 2012-06-11 | 2016-08-09 | Aktiebolaget Skf | Adjustable chock |
CN107664161A (en) * | 2016-07-29 | 2018-02-06 | 西门子公司 | Bearing arrangement |
US10975911B2 (en) | 2014-04-10 | 2021-04-13 | Aktiebolaget Skf | Hydrostatic bearing for supporting a telescope |
US11041529B2 (en) * | 2017-03-16 | 2021-06-22 | Siemens Gamesa Renewable Energy A/S | Sliding bearing pad support |
CN114483791A (en) * | 2022-04-15 | 2022-05-13 | 河北宏远创研能源科技有限公司 | Hydraulic suspension recoil flow-reducing pressure-stabilizing bidirectional bearing |
EP4253778A1 (en) * | 2022-03-28 | 2023-10-04 | Mitsubishi Heavy Industries Compressor Corporation | Tilting pad bearing |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2313591A1 (en) * | 1975-06-04 | 1976-12-31 | Creusot Loire | Bearing for slowly rotating heavy load - suitable for rotating ladles handling molten metal in foundaries |
DE2558068C2 (en) * | 1975-12-22 | 1982-08-12 | Escher Wyss Gmbh, 7980 Ravensburg | Hydrostatic support device |
DE2732303C2 (en) * | 1977-07-16 | 1986-02-13 | Kollmorgen Technologies Corp., Dallas, Tex. | Pneumostatic outlet throttle bearing |
DE3012732C2 (en) * | 1980-03-25 | 1986-05-07 | Sulzer-Escher Wyss AG, Zürich | Hydrostatic support element for supporting a supported part on a supporting part |
FR2574503B1 (en) * | 1984-12-06 | 1987-01-16 | Hispano Suiza Sa | HYDRODYNAMIC FLUID BEARING COMPRISING EVOLUTIVE PRELOAD SKATES |
WO1998036185A1 (en) * | 1997-02-14 | 1998-08-20 | Valmet Corporation | Bearing control system for a roll with hydrostatic bearings |
FI117486B (en) * | 1997-02-14 | 2006-10-31 | Metso Paper Inc | Roller for a paper machine or paper finishing machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2348928A (en) * | 1941-11-13 | 1944-05-16 | Heald Machine Co | Bearing construction |
US2644727A (en) * | 1949-10-18 | 1953-07-07 | North American Aviation Inc | Double-ball gyro precession axis bearing |
US2710234A (en) * | 1950-05-22 | 1955-06-07 | Hughes Aircraft Co | Fluid-bearing mount |
US3016273A (en) * | 1960-06-29 | 1962-01-09 | Northrop Corp | Pivot-type self-aligning hydrostatic bearing assembly |
CA635134A (en) * | 1962-01-23 | Haenny Jost | Gas lubricated shaft bearing |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE33727C (en) * | V. H. HALLOCK und F. D. NEWTON in Queens, New-York | Hydraulic relief cushion for waves | ||
BE504305A (en) * | 1950-07-25 | |||
CH331637A (en) * | 1954-01-07 | 1958-07-31 | Vyzk Ustav Obrabecich Stroju | Device for the mutual support of two opposite guideways |
US2998999A (en) * | 1958-12-05 | 1961-09-05 | Northrop Corp | Self-aligning shaft and hydrostatic bearings assembly |
US3351394A (en) * | 1965-01-07 | 1967-11-07 | Mechanical Tech Inc | Hydrostatic bearings for a rotatable element |
-
1971
- 1971-11-23 GB GB5431871A patent/GB1343518A/en not_active Expired
- 1971-11-23 US US00201372A patent/US3791703A/en not_active Expired - Lifetime
- 1971-11-24 SE SE7115049A patent/SE373417B/en unknown
- 1971-11-24 DE DE2158179A patent/DE2158179C2/en not_active Expired
- 1971-11-29 FR FR7142672A patent/FR2116141A5/fr not_active Expired
- 1971-11-29 IT IT83409/71A patent/IT945867B/en active
- 1971-11-29 JP JP46096207A patent/JPS5817883B1/ja active Pending
- 1971-11-30 CA CA128,927A patent/CA960270A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA635134A (en) * | 1962-01-23 | Haenny Jost | Gas lubricated shaft bearing | |
US2348928A (en) * | 1941-11-13 | 1944-05-16 | Heald Machine Co | Bearing construction |
US2644727A (en) * | 1949-10-18 | 1953-07-07 | North American Aviation Inc | Double-ball gyro precession axis bearing |
US2710234A (en) * | 1950-05-22 | 1955-06-07 | Hughes Aircraft Co | Fluid-bearing mount |
US3016273A (en) * | 1960-06-29 | 1962-01-09 | Northrop Corp | Pivot-type self-aligning hydrostatic bearing assembly |
Cited By (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB391797I5 (en) * | 1973-04-05 | 1976-03-09 | ||
US3988046A (en) * | 1973-04-05 | 1976-10-26 | Toyota Jidosha Kogyo Kabushiki Kaisha | Resiliently mounted gas bearing device |
US3994367A (en) * | 1974-06-27 | 1976-11-30 | Escher Wyss Limited | Hydrostatically lubricated bearing |
US4113325A (en) * | 1975-12-02 | 1978-09-12 | Escher Wyss Limited | Supporting device |
US4073549A (en) * | 1975-12-02 | 1978-02-14 | Escher Wyss Limited | Hydrostatic supporting device |
US4106824A (en) * | 1975-12-02 | 1978-08-15 | Escher Wyss Limited | Hydrostatic supporting device |
FR2334002A1 (en) * | 1975-12-02 | 1977-07-01 | Escher Wyss Sa | HYDROSTATIC SUPPORT DEVICE |
US4149759A (en) * | 1975-12-02 | 1979-04-17 | Escher Wyss Limited | Radial bearing arrangement |
US4310204A (en) * | 1979-02-26 | 1982-01-12 | Escher Wyss Limited | Hydrostatic support apparatus |
US4318572A (en) * | 1980-01-11 | 1982-03-09 | Mts Systems Corporation | Tension-compression swivel joint with hydraulic force reaction |
DE3241325T1 (en) * | 1981-04-15 | 1984-10-04 | Sven 46142 Trollhättan Schriwer | Method and device for sealing a bearing chamber which is formed in hydrostatic and aerostatic bearings and designed to receive a fluid |
US4540221A (en) * | 1982-06-02 | 1985-09-10 | Ifield Engineering Pty. Limited | Self regulating hydrostatic pad bearings |
US4496251A (en) * | 1984-05-14 | 1985-01-29 | Ide Russell D | Pad-type hydrodynamic bearing |
US5054938A (en) * | 1987-05-29 | 1991-10-08 | Ide Russell D | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
US5222815A (en) * | 1987-05-29 | 1993-06-29 | Ide Russell D | Bearings having beam mounted bearing pads and methods of making same |
US5489155A (en) * | 1987-05-29 | 1996-02-06 | Ide; Russell D. | Tilt pad variable geometry bearings having tilting bearing pads and methods of making same |
US5660481A (en) * | 1987-05-29 | 1997-08-26 | Ide; Russell D. | Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
US5033871A (en) * | 1988-10-25 | 1991-07-23 | Ide Russell D | Extrudable multi-rigidity hydrodynamic bearing and method of making the same |
US5304006A (en) * | 1989-02-08 | 1994-04-19 | Ide Russell D | Self positioning beam mounted bearing and bearing and shaft assembly including the same |
US5249512A (en) * | 1992-05-18 | 1993-10-05 | Christenson Howard W | hydrostatic pump and motor |
US5716142A (en) * | 1993-12-08 | 1998-02-10 | Danfoss A/S | Radial journal bearing with slide shoe |
WO2000011360A1 (en) * | 1998-08-19 | 2000-03-02 | Corac Group Plc | Hydrodynamic journal bearing |
US6623164B1 (en) | 1998-08-19 | 2003-09-23 | Corac Group Plc | Hydrodynamic journal bearing |
EP1081398A3 (en) * | 1999-08-31 | 2001-10-04 | Voith Paper Patent GmbH | Hydrostatic supporting device for the outer shell of a roll |
DE10043936A1 (en) * | 2000-09-07 | 2002-04-04 | Skf Gmbh | Bearing for mast of wind turbine comprises outer ring with internal groove and inner ring with radial bores though which rods are inserted which have upper sections carrying anti-friction pads on faces which contact groove in outer ring |
DE10043936C2 (en) * | 2000-09-07 | 2003-09-04 | Skf Gmbh | bearings |
US7611286B2 (en) * | 2001-06-22 | 2009-11-03 | Delaware Capital Formation, Inc. | Journal bearing arrangement |
US20080095482A1 (en) * | 2001-06-22 | 2008-04-24 | Delaware Capital Formation, Inc. | Journal bearing arrangement |
US7364409B2 (en) | 2004-02-11 | 2008-04-29 | Haldex Hydraulics Corporation | Piston assembly for rotary hydraulic machines |
US7402027B2 (en) | 2004-02-11 | 2008-07-22 | Haldex Hydraulics Corporation | Rotating group of a hydraulic machine |
US20070028608A1 (en) * | 2004-02-11 | 2007-02-08 | George Kadlicko | Rotary hydraulic machine and controls |
US9115770B2 (en) | 2004-02-11 | 2015-08-25 | Concentric Rockford Inc. | Rotary hydraulic machine and controls |
US20050175471A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Piston assembly for rotary hydraulic machines |
US20050175442A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Housing for rotary hydraulic machines |
US7380490B2 (en) | 2004-02-11 | 2008-06-03 | Haldex Hydraulics Corporation | Housing for rotary hydraulic machines |
US7992484B2 (en) | 2004-02-11 | 2011-08-09 | Haldex Hydraulics Corporation | Rotary hydraulic machine and controls |
US20050172798A1 (en) * | 2004-02-11 | 2005-08-11 | George Kadlicko | Rotating group of a hydraulic machine |
US7516613B2 (en) | 2004-12-01 | 2009-04-14 | Haldex Hydraulics Corporation | Hydraulic drive system |
US20060156713A1 (en) * | 2004-12-01 | 2006-07-20 | George Kadlicko | Hydraulic drive system |
US20090193801A1 (en) * | 2004-12-01 | 2009-08-06 | George Kadlicko | Hydraulic drive system |
US8596055B2 (en) | 2004-12-01 | 2013-12-03 | Concentric Rockford Inc. | Hydraulic drive system |
US8196397B2 (en) | 2004-12-01 | 2012-06-12 | Concentric Rockford, Inc. | Hydraulic drive system |
US7856817B2 (en) | 2004-12-01 | 2010-12-28 | Haldex Hydraulics Corporation | Hydraulic drive system |
US20110061375A1 (en) * | 2004-12-01 | 2011-03-17 | George Kadlicko | Hydraulic Drive System |
US7553085B2 (en) | 2006-04-28 | 2009-06-30 | The United States Of America As Represented By The United States Environmental Protection Agency | Fluid bearing and method of operation |
US20070253649A1 (en) * | 2006-04-28 | 2007-11-01 | Gov't Of The Usa, As Represented By The Administra Tor Of The U.S. Environmental Protection Agency | Fluid bearing and method of operation |
US20110188789A1 (en) * | 2007-04-13 | 2011-08-04 | Delaware Capital Formation, Inc. | Integral tilting pad bearing |
US7845855B2 (en) | 2007-04-13 | 2010-12-07 | Delaware Capital Formation, Inc. | Integral tilting pad bearing |
US20080253706A1 (en) * | 2007-04-13 | 2008-10-16 | Delaware Capital Formation, Inc. | Integral tilting pad bearing |
US20110069915A1 (en) * | 2009-09-22 | 2011-03-24 | Sergio Palomba | Bearing device, oil distribution mechanism and method |
US20110069916A1 (en) * | 2009-09-22 | 2011-03-24 | Sergio Palomba | Bearing device, retention mechanism and method for retaining at least one pad |
US8657501B2 (en) | 2009-09-22 | 2014-02-25 | Nuovo Pignone S.P.A. | Bearing device, oil distribution mechanism and method |
US8734019B2 (en) * | 2009-09-22 | 2014-05-27 | Nuovo Pignone S.P.A. | Bearing device, retention mechanism and method for retaining at least one pad |
US8684606B2 (en) | 2010-09-09 | 2014-04-01 | Orion Corporation | Hydrodynamic bearing with adaptive displacement control |
CN103470319A (en) * | 2012-06-01 | 2013-12-25 | 阿尔斯通技术有限公司 | Journal bearing pad for turbine |
US9022658B2 (en) | 2012-06-01 | 2015-05-05 | Alstom Technology Ltd | Journal bearing pad for turbine |
CN103470319B (en) * | 2012-06-01 | 2016-03-16 | 阿尔斯通技术有限公司 | For the journal shaft rim of turbine |
US9410657B2 (en) * | 2012-06-11 | 2016-08-09 | Aktiebolaget Skf | Adjustable chock |
US10975911B2 (en) | 2014-04-10 | 2021-04-13 | Aktiebolaget Skf | Hydrostatic bearing for supporting a telescope |
CN107664161A (en) * | 2016-07-29 | 2018-02-06 | 西门子公司 | Bearing arrangement |
US10260484B2 (en) * | 2016-07-29 | 2019-04-16 | Siemens Aktiengesellschaft | Bearing arrangement |
US11041529B2 (en) * | 2017-03-16 | 2021-06-22 | Siemens Gamesa Renewable Energy A/S | Sliding bearing pad support |
EP4253778A1 (en) * | 2022-03-28 | 2023-10-04 | Mitsubishi Heavy Industries Compressor Corporation | Tilting pad bearing |
CN114483791A (en) * | 2022-04-15 | 2022-05-13 | 河北宏远创研能源科技有限公司 | Hydraulic suspension recoil flow-reducing pressure-stabilizing bidirectional bearing |
CN114483791B (en) * | 2022-04-15 | 2022-06-21 | 河北宏远创研能源科技有限公司 | Hydraulic suspension recoil flow-reducing pressure-stabilizing bidirectional bearing |
Also Published As
Publication number | Publication date |
---|---|
CA960270A (en) | 1974-12-31 |
SE373417B (en) | 1975-02-03 |
DE2158179C2 (en) | 1985-09-05 |
FR2116141A5 (en) | 1972-07-07 |
JPS5817883B1 (en) | 1983-04-09 |
DE2158179A1 (en) | 1972-06-08 |
IT945867B (en) | 1973-05-10 |
GB1343518A (en) | 1974-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3791703A (en) | Journal support bearings for rotating shafts | |
US3814486A (en) | Hydrostatic thrust bearing supports | |
US3802284A (en) | Variable-ratio toric drive with hydraulic relief means | |
US3672733A (en) | Axial bearing | |
US3439962A (en) | Reversible sliding bearings of spiral or helical groove type | |
US3799628A (en) | Hydrostatic button bearing with attitude control | |
US3877839A (en) | Torque limiting means for variable displacement pumps | |
US2990853A (en) | Rotary valve | |
US3413864A (en) | Variable-ratio frictional drives | |
US3036557A (en) | Hydraulic motors and pumps | |
US3721161A (en) | Axial piston hydraulic apparatus | |
US3142190A (en) | Ratio control system for toroidal transmission | |
US3998502A (en) | Fluid bearing system | |
US2711934A (en) | Journal and thrust bearing arrangement | |
US3826147A (en) | Constant speed hydraulically controlled toric transmission with concentric two piston valve and governor means | |
US2854298A (en) | Axial and radial thrust bearing | |
US3453032A (en) | Hydrostatic axial bearing | |
US3120816A (en) | Hydraulic pumps and motors | |
US3073418A (en) | Constant tension hydraulic brake | |
US3005666A (en) | Hydrostatic rotary coupling | |
US3163051A (en) | Roller construction for toroidal transmissions | |
JPS58500723A (en) | Bearing methods and devices for hydrostatic or aerostatic bearings | |
US2164888A (en) | Variable delivery pump | |
US2941851A (en) | Radial and thrust bearing | |
US3813133A (en) | Axial thrust bearing |