WO1988003085A1 - Extruder - Google Patents

Extruder Download PDF

Info

Publication number
WO1988003085A1
WO1988003085A1 PCT/EP1987/000595 EP8700595W WO8803085A1 WO 1988003085 A1 WO1988003085 A1 WO 1988003085A1 EP 8700595 W EP8700595 W EP 8700595W WO 8803085 A1 WO8803085 A1 WO 8803085A1
Authority
WO
WIPO (PCT)
Prior art keywords
pistons
plate
fluid
pipeline
housing
Prior art date
Application number
PCT/EP1987/000595
Other languages
German (de)
French (fr)
Inventor
Wilfried Schaaf
Original Assignee
Heinz Schaaf Nahrungsmittel-Extrusionstechnik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heinz Schaaf Nahrungsmittel-Extrusionstechnik filed Critical Heinz Schaaf Nahrungsmittel-Extrusionstechnik
Publication of WO1988003085A1 publication Critical patent/WO1988003085A1/en

Links

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
    • F16C32/0662—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/241—Drive means therefor; screw bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

The extruder, designed in particular for extruding food stuffs, has a high speed endless screw (18), which is supported in its housing in an axial direction by means of an axial support composed of pistons (34) arranged in a housing plate (26) and a plate (22) adjacent to the screw. The pistons (34) are movable axially, when a pressure liquid is fed behind these via a pipeline (54). A fluid is fed via a pipeline (58) to form a fluid film (56) between the front face of the piston (34) and the rear face of the plate (22). The pistons are provided for this purpose with annular grooves (40) which communicate with the front face of the pistons by means of channels. The excess fluid can be evacuated by a channel (60). Several pistons of this type are arranged horizontally in a circle, so that even in the event of slight changes in shape, the plate (22) has a constant support surface on its rear face.
PCT/EP1987/000595 1986-10-21 1987-10-13 Extruder WO1988003085A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3635765.0 1986-10-21
DE19863635765 DE3635765A1 (en) 1986-10-21 1986-10-21 EXTRUDER

Publications (1)

Publication Number Publication Date
WO1988003085A1 true WO1988003085A1 (en) 1988-05-05

Family

ID=6312139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1987/000595 WO1988003085A1 (en) 1986-10-21 1987-10-13 Extruder

Country Status (4)

Country Link
EP (1) EP0288509A1 (en)
JP (1) JPH01502078A (en)
DE (1) DE3635765A1 (en)
WO (1) WO1988003085A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545223A (en) * 1990-10-31 1996-08-13 Baxter International, Inc. Ported tissue implant systems and methods of using same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1538900A (en) * 1967-09-27 1968-09-06 Frank W Egan & Company Thrust bearing for rotary screw
DE2406705A1 (en) * 1973-02-21 1974-09-12 Wavin Bv EXTRUDER WITH HYDROSTATIC BEARING
DE2634822A1 (en) * 1976-08-03 1978-02-09 Escher Wyss Gmbh Moving machine part hydrostatic support - has resilient connector between floating support block and machine to compensate for load variations
CH601687A5 (en) * 1976-07-14 1978-07-14 Escher Wyss Ag

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524737A (en) * 1955-08-29 1956-04-13
AT241919B (en) * 1962-08-22 1965-08-25 Elmasch Bau Sachsenwerk Veb Hydrostatic thrust bearing
DE1575614A1 (en) * 1966-06-21 1970-02-05 Siemens Ag Hydrostatic bearing
US3407439A (en) * 1966-09-29 1968-10-29 Egan & Co Frank W Thrust bearing for rotating screw
US3635126A (en) * 1969-01-17 1972-01-18 Caterpillar Tractor Co Hydrostatic button bearings for pumps and motors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1538900A (en) * 1967-09-27 1968-09-06 Frank W Egan & Company Thrust bearing for rotary screw
DE2406705A1 (en) * 1973-02-21 1974-09-12 Wavin Bv EXTRUDER WITH HYDROSTATIC BEARING
CH601687A5 (en) * 1976-07-14 1978-07-14 Escher Wyss Ag
DE2634822A1 (en) * 1976-08-03 1978-02-09 Escher Wyss Gmbh Moving machine part hydrostatic support - has resilient connector between floating support block and machine to compensate for load variations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545223A (en) * 1990-10-31 1996-08-13 Baxter International, Inc. Ported tissue implant systems and methods of using same

Also Published As

Publication number Publication date
EP0288509A1 (en) 1988-11-02
JPH01502078A (en) 1989-07-27
DE3635765A1 (en) 1988-05-05

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