US3794056A - Fluidic pulse and flow divider - Google Patents

Fluidic pulse and flow divider Download PDF

Info

Publication number
US3794056A
US3794056A US00307718A US3794056DA US3794056A US 3794056 A US3794056 A US 3794056A US 00307718 A US00307718 A US 00307718A US 3794056D A US3794056D A US 3794056DA US 3794056 A US3794056 A US 3794056A
Authority
US
United States
Prior art keywords
output
channel
flow divider
area
input channel
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
Application number
US00307718A
Inventor
R Warren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3794056A publication Critical patent/US3794056A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/22—Oscillators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/001—Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2229—Device including passages having V over T configuration
    • Y10T137/224—With particular characteristics of control input
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85938—Non-valved flow dividers

Definitions

  • This invention relates to fluidic devices and, more particularly, to a fluidic device that divides a fluid signal into :equal pulses.
  • the first flow dividers were constructed in the form of a Y.
  • a typical Y splitter is shown in FIG. 2 of United States Pat. No. 3,340,884.
  • the bottom leg of the Y is generally designed to be long enough to serve as a flow straightening section to obtain a uniform flow profile. This ensures that the splitter divides the wave and flows equally between the two upper legs.
  • the combined area of the upper two legs of the Y was made equal to the area of the single lower leg of the Y. Therefore, reflection of the fluid waves was prevented inasmuch as a constant area was presented to the wavefronts as they progressed through the device. Additional fan-out was achievable simply by attaching additional Y sections.
  • each flow divider had to straighten the flow into a uniform profile prior to dividing it.
  • Another example of the prior art with respect to stacking Y sections is suggested in United States Pat. No. 3,282,297. Others have suggested the possibility of constructing an axis-symmetric device to provide equal wave and flow division of four times and eight times with only one straightening section. However, such a three-dimensional device does not lend itself to adaptation to essentially onedimensional fluidic circuits in common usage.
  • a further object of the present invention is to provide a fluidic pulse and flow divider for use in synchronous fluidic circuits in which a plurality of outlet pulses can be provided to many stages of a fluidic circuit at essentially the same time by utilizing a single inlet section flow divider.
  • a further object is to provide a pulse and flow divider which requires only a single straightening entrance flow section for a plurality of output channels in an essentially planar fluidic configuration.
  • a fluidic pulse and flow divider which comprises a constant depth input channel for receiving a steady fluid flow and a plurality of constant depth output channels located downstream of the receiving portion of the input channel.
  • the constant depth of the devices is of a finite dimension and the term area is therefore used in conjunction with the description thereof.
  • the area of the input channel as that term is used in the specification and the claims, is the area of a section normal to the longitudinal axis of the input channel and the area of an output channel is the area of a section normal to the longitudinal axis of an output channel.
  • Each of the output chan nels is located at the same acute angle with respect to the axis defining the flow path of the incoming fluid flow. Also, the area of the input channel is essentially equal to the combined total area of the output channels. The width of the flow straightening input channel is smoothly reduced before each successive outlet channel by an amount equal to the width of the preceding output channel.
  • FIG. 1 is a sectional schematic view of a device constructed according to the principles of the present invention.
  • FIG. 2 is another schematic of a preferred embodiment of the present invention.
  • FIGS. 1 and 2 were constructed according to the following principles:
  • the area of the entrance section/input channel was made essentially equal to the total area of the combined outlet channels;
  • the entrance section/input channel was made of sufficient length to provide a uniform flow profile for the incoming fluid waves
  • the outlet channels are disposed at an acute angle with respect to the flow in the entrance section/input channel;
  • each outlet channel projects into the entrance section/input channel one half the width of the output channel
  • the width (area) of the entrance section/input channel is smoothly reduced by an amount equal to the width (area) of the preceding outlet channel prior to the next outlet.
  • FIG. ll illustrates one embodiment of the device of the present invention.
  • Input channel 10 is comprised of a constant area receiving portion 22 to the left of channel 24 and a tapered output portion to the right of channel 24.
  • the receiving portion which is an initial straightening section, is constructed to provide a uniform flow and pressure profile.
  • Five outlets 12, 14, 16, 18 and 20 are disposed at an angle 0 to the incoming fluid flow.
  • the outlet openings 24, 26, 28, 30 and 32 are tapered at an angle a with respect to the horizontal axis.
  • the taper angle a is chosen to provide the desired projection of the downstream sides 13, 15, 17, and 19 of each outlet and simultaneously to reduce the entrance area smoothly by an amount equal to the area of the preceding outlet channel before the next outlet.
  • This input channel/entrance area is similarly reduced for each successive outlet.
  • FIG. 2 Depicted in FIG. 2 is another device built according to the above enumerated specifications.
  • Five outlet channels 52, 54, 56, 58 and 60 were provided at an acute angle of 45 to the direction of the fluid flow.
  • Provided at the output of each outlet channel were hose fittings 80 to facilitate connections to the remainder of the fluidic circuitry.
  • the design criteria involving the downstream edge of each outlet being projected into the entrance section one half the width of the outlet channel becomes more clear.
  • the width A of outlet channel 52 was constructed to be 0.1 inches and the width C, which constitutes the portion of the inlet wave that will be diverted through outlet channel 52, was constructed to be equal to 0.05 inches, whereas the width B was designed to be 0.1 inches.
  • each downstream edge 62, 64, 66, and 68 projects into the entrance section one half the width of each outlet channel. Moreover, it is more easily understood that the width (area) of the entrance section is smoothly reduced by an amount equal to the width (area) of each preceding outlet channel prior to the next outlet channel.
  • the foregoing specifications ensure that the wave will be reconstituted to its previous condition, thereby eliminating reflections and providing equal pressure and flow outlets from each output channel.
  • a fluidic pulse and flow divider which comprises:
  • a constant depth input channel having a receiving portion which has a constant area along its length for receiving a steady fluid flow and an output portion;
  • one wall boundary of said output portion of said input channel is co-linear and a continuation of one wall boundary of said receiving portion of said input channel while the other wall boundary of said output portion comprises a plurality of sections separated by said output channels, said other wall boundary of said output portion being at an oblique angle to the other wall boundary of said receiving portion.

Abstract

A fluidic pulse and flow divider which has a single input and a plurality of outlet channels which communicate with the input and are disposed at an acute angle with respect to the fluid flow in the entrance section to provide a plurality of fan-outs exiting toward one side of the device. The combined area of the outlets is equal to the area of the entrance flow straightening section to eliminate reflection of waves. The area of the entrance section itself is smoothly reduced before each successive outlet channel by an amount equal to the area of the preceding output channel.

Description

United States Patent [1 1 Warren [451 Feb. 26, 1974 FLUIDIC PULSE AND FLOW DIVIDER [76] Inventor: Raymond W. Warren, 7925 Falstaff Rd., McLean, Va. 22101 [22] Filed: Nov. 17, 1972 21 App]. No.: 307,718
[52] US. Cl 137/561 A, 137/836, 138/39 [51] Int. Cl. E03b [58] Field of Search... 137/561 R, 561 A, 836, 838,
[56] References Cited UNITED STATES PATENTS 3,405,725 10/1968 Fox 137/839 3,037,629 6/1962 Fontein et al 137/56] R FOREIGN PATENTS OR APPLICATIONS 18,745 10/1895 Great Britain 137/561 A Primary Examiner-William R. Cline Attorney, Agent, or Firm-Edward Jv Kelly; Herbert Ber] [57] ABSTRACT A fluidic pulse and flow divider which has a single input and a plurality of outlet channels which communicate with the input and are disposed at an acute angle with respect to the fluid flow in the entrance 7 section to provide a plurality of fan-outs exiting toward one side of the device. The combined area of the outlets is equal to the area of the entrance flow straightening section to eliminate reflection of waves. The area of the entrance section itself is smoothly reduced before each successive outlet channel by an amount equal to the area of the preceding output channel.
8 Claims, 2 Drawing Figures 1 FLUIDIC PULSE AND FLOW DIVIDER RIGHTS OF GOVERNMENT The invention described herein'may be manufactured, used, and licensed by or for the United States Government for governmental purposes without the payment to me of any royalty thereon.
BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to fluidic devices and, more particularly, to a fluidic device that divides a fluid signal into :equal pulses.
2. Description of the Prior Art In synchronous fluidic circuits, it is often necessary to have a fluid signal at many stages of the circuit at essentially the same time. An example of this would be the clock pulse required in a fluidic shift register. Even flow division and transmission of a fluidic signal is accomplished by means of devices known as fluidic pulse and flow dividers.
The first flow dividerswere constructed in the form of a Y. A typical Y splitter is shown in FIG. 2 of United States Pat. No. 3,340,884. The bottom leg of the Y is generally designed to be long enough to serve as a flow straightening section to obtain a uniform flow profile. This ensures that the splitter divides the wave and flows equally between the two upper legs. To prevent the reflectionof waves, the combined area of the upper two legs of the Y was made equal to the area of the single lower leg of the Y. Therefore, reflection of the fluid waves was prevented inasmuch as a constant area was presented to the wavefronts as they progressed through the device. Additional fan-out was achievable simply by attaching additional Y sections. However, each flow divider had to straighten the flow into a uniform profile prior to dividing it. Another example of the prior art with respect to stacking Y sections is suggested in United States Pat. No. 3,282,297. Others have suggested the possibility of constructing an axis-symmetric device to provide equal wave and flow division of four times and eight times with only one straightening section. However, such a three-dimensional device does not lend itself to adaptation to essentially onedimensional fluidic circuits in common usage.
It is therefore one object of the present invention to provide a fluidic pulse and flow divider in which equal multiflow division in essentially one plane is provided for use in fluidic circuits.
A further object of the present invention is to provide a fluidic pulse and flow divider for use in synchronous fluidic circuits in which a plurality of outlet pulses can be provided to many stages of a fluidic circuit at essentially the same time by utilizing a single inlet section flow divider.
A further object is to provide a pulse and flow divider which requires only a single straightening entrance flow section for a plurality of output channels in an essentially planar fluidic configuration.
SUMMARY OF THE INVENTION Briefly, in accordance with the invention, a fluidic pulse and flow divider is provided which comprises a constant depth input channel for receiving a steady fluid flow and a plurality of constant depth output channels located downstream of the receiving portion of the input channel. While the devices of the present invention; may be considered to be essentially planar, the constant depth of the devices is of a finite dimension and the term area is therefore used in conjunction with the description thereof. The area of the input channel as that term is used in the specification and the claims, is the area of a section normal to the longitudinal axis of the input channel and the area of an output channel is the area of a section normal to the longitudinal axis of an output channel. Each of the output chan nels is located at the same acute angle with respect to the axis defining the flow path of the incoming fluid flow. Also, the area of the input channel is essentially equal to the combined total area of the output channels. The width of the flow straightening input channel is smoothly reduced before each successive outlet channel by an amount equal to the width of the preceding output channel.
BRIEF DESCRIPTION OF THE DRAWINGS The specific nature of the invention as well as other objects, aspects,. uses, and advantages thereof will clearly appear from the following description from the accompanying drawing, in which:
FIG. 1 is a sectional schematic view of a device constructed according to the principles of the present invention; and
FIG. 2 is another schematic of a preferred embodiment of the present invention.
DESCRIPTION or THE PREFERRED EMBODIMENTS In order to obtain an equal multiflow division in essentially one plane for use in fluidic circuits, the devices in FIGS. 1 and 2 were constructed according to the following principles:
g l. The area of the entrance section/input channel was made essentially equal to the total area of the combined outlet channels;
2. The entrance section/input channel was made of sufficient length to provide a uniform flow profile for the incoming fluid waves;
3. The outlet channels are disposed at an acute angle with respect to the flow in the entrance section/input channel;
4. The downstream edge of each outlet channel projects into the entrance section/input channel one half the width of the output channel; and
5. For constant depth channels, the width (area) of the entrance section/input channel is smoothly reduced by an amount equal to the width (area) of the preceding outlet channel prior to the next outlet.
FIG. ll illustrates one embodiment of the device of the present invention. Input channel 10 is comprised of a constant area receiving portion 22 to the left of channel 24 and a tapered output portion to the right of channel 24. The receiving portion which is an initial straightening section, is constructed to provide a uniform flow and pressure profile. Five outlets 12, 14, 16, 18 and 20 are disposed at an angle 0 to the incoming fluid flow. The outlet openings 24, 26, 28, 30 and 32 are tapered at an angle a with respect to the horizontal axis. The taper angle a is chosen to provide the desired projection of the downstream sides 13, 15, 17, and 19 of each outlet and simultaneously to reduce the entrance area smoothly by an amount equal to the area of the preceding outlet channel before the next outlet.
This input channel/entrance area is similarly reduced for each successive outlet.
In operation, when a fluid wave enters the straightening section 22 in the input channel of the device, the wavefront becomes uniform across the channel width. A small portion of the wave extends and is removed at the first outlet channel 12, which lowers the pressure in the remaining wavefront. Since the outlet channels are disposed at an acute angle to the fluid flow and define a decreasing width tapering section, the section of the taper 13 will reconstitute the wave to its previous condition, and another small portion of the wave will be removed at the next outlet channel 14. This process repeats itself with the end result being each outlet channel having an equal pressure and flow wave exiting therefrom. in a device constructed according to the principle enunciated hereinabove the dimensions shown in FIG. 1 were chosen as follows: x 1.5 inches; y 0.25 inches; the projected width of each outlet was 0.05 inches; the width of each taperforming section was 0.1 inches; 6 45; and a 18. The depth of the inlet and outlet channels was a constant 0.040 inches.
Depicted in FIG. 2 is another device built according to the above enumerated specifications. Five outlet channels 52, 54, 56, 58 and 60 were provided at an acute angle of 45 to the direction of the fluid flow. Provided at the output of each outlet channel were hose fittings 80 to facilitate connections to the remainder of the fluidic circuitry. in the device of FIG. 2, the design criteria involving the downstream edge of each outlet being projected into the entrance section one half the width of the outlet channel becomes more clear. For example, the width A of outlet channel 52 was constructed to be 0.1 inches and the width C, which constitutes the portion of the inlet wave that will be diverted through outlet channel 52, was constructed to be equal to 0.05 inches, whereas the width B was designed to be 0.1 inches. From the foregoing, it is more easily seen that each downstream edge 62, 64, 66, and 68 projects into the entrance section one half the width of each outlet channel. Moreover, it is more easily understood that the width (area) of the entrance section is smoothly reduced by an amount equal to the width (area) of each preceding outlet channel prior to the next outlet channel. The foregoing specifications ensure that the wave will be reconstituted to its previous condition, thereby eliminating reflections and providing equal pressure and flow outlets from each output channel.
It will be appreciated that unequal pulse and flow divisions proportional to the area of the outlets can be made using the same principles, and therefore I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.
I claim as my invention: 1. A fluidic pulse and flow divider, which comprises:
a. a constant depth input channel having a receiving portion which has a constant area along its length for receiving a steady fluid flow and an output portion;
b. a plurality of constant depth output channels located at said output portion of said input channel;
c. each of said output channels juxtaposed at the same acute angle with respect to the axis defining the flow path of said steady fluid flow; and
(1. said constant area of said receiving portion of said input channel being essentially equal to the combined total area of said plurality of output channels.
2. The fluidic pulse and flow divider of claim 1 wherein the area of said output portion of said input channel is smoothly reduced before each successive outlet channel by an amount equal to the area of the preceding output channel.
3. The fluidic pulse and flow divider of claim 2 wherein the portion of each output channel that defines I the downstream edge thereof projects into said output portion of said input channel a distance equal to onehalf the width of said output channel.
4. The fluidic pulse and flow divider of claim 2 wherein the shape of the areas of said input and output channels is rectangular.
5. The fluidic pulse and flow divider of claim 4 wherein one wall boundary of said output portion of said input channel is co-linear and a continuation of one wall boundary of said receiving portion of said input channel while the other wall boundary of said output portion comprises a plurality of sections separated by said output channels, said other wall boundary of said output portion being at an oblique angle to the other wall boundary of said receiving portion.
6. The fluidic pulse and flow divider of claim 5 wherein said output channels are also juxtaposed at said oblique angle with respect to said other wall boundary of said receiving portion.
7. The fluidic pulse and flow divider of claim 5 wherein said output channels are juxtaposed at a different oblique angle than said oblique angle with respect to said other wall portion of said receiving portion.
8. The fluidic pulse and flow divider of claim 7 wherein said different oblique angle is such that the downstream edge of each output channel projects into said output portion of said input channel a distance equal to one-half the width of said output channel.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3 79 4 056 I v Dated February 26, 1-974 Inventofls') Rayrr lerid w. Warren v It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Add:
[73] Assignee: Jjhe United States of America as represented by the Secretary of the Signed and sealed this 2nd day bf Juiyf1974.
(SEAL) Attest: v
EDWARD M.V FLE 'iCI-IERJR Q I"YC.MARSHALL DANN fidztz'es'cing Qffleer Commissioner of Patents F ORM PC4650 (i065) USCOMM'DC O376-PO U.S. GOVERNMENT PRINTING OFFICE ll! O-Y-JGC-JQL

Claims (8)

1. A fluidic pulse and flow divider, which comprises: a. a constant depth input channel having a receiving portion which has a constant area along its length for receiving a steady fluid flow and an output portion; b. a plurality of constant depth output channels located at said output portion of said input channel; c. each of said output channels juxtaposed at the same acute angle with respect to the axis defining the flow path of said steady fluid flow; and d. said constant area of said receiving portion of said input channel being essentially equal to the combined total area of said plurality of output channels.
2. The fluidic pulse and flow divider of claim 1 wherein the area of said output portion of said input channel is smoothly reduced before each successive outlet channel by an amount equal to the area of the preceding output channel.
3. The fluidic pulse and flow divider of claim 2 wherein the portion of each output channel that defines the downstream edge thereof projects into said output portion of said input channel a distance equal to one-half the width of said output channel.
4. The fluidic pulse and flow divider of claim 2 wherein the shape of the areas of said input and output channels is rectangular.
5. The fluidic pulse and flow divider of claim 4 wherein one wall boundary of said output portion of said input channel is co-linear and a continuation of one wall boundary of said receiving portion of said input channel while tHe other wall boundary of said output portion comprises a plurality of sections separated by said output channels, said other wall boundary of said output portion being at an oblique angle to the other wall boundary of said receiving portion.
6. The fluidic pulse and flow divider of claim 5 wherein said output channels are also juxtaposed at said oblique angle with respect to said other wall boundary of said receiving portion.
7. The fluidic pulse and flow divider of claim 5 wherein said output channels are juxtaposed at a different oblique angle than said oblique angle with respect to said other wall portion of said receiving portion.
8. The fluidic pulse and flow divider of claim 7 wherein said different oblique angle is such that the downstream edge of each output channel projects into said output portion of said input channel a distance equal to one-half the width of said output channel.
US00307718A 1972-11-17 1972-11-17 Fluidic pulse and flow divider Expired - Lifetime US3794056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30771872A 1972-11-17 1972-11-17

Publications (1)

Publication Number Publication Date
US3794056A true US3794056A (en) 1974-02-26

Family

ID=23190915

Family Applications (1)

Application Number Title Priority Date Filing Date
US00307718A Expired - Lifetime US3794056A (en) 1972-11-17 1972-11-17 Fluidic pulse and flow divider

Country Status (1)

Country Link
US (1) US3794056A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016033A (en) * 1975-03-01 1977-04-05 J. M. Voith Gmbh Distribution means for aqueous slurry in papermaking machines
US4609009A (en) * 1985-12-11 1986-09-02 Environmental Elements Corp. Stepped plenum system
US4706885A (en) * 1984-08-06 1987-11-17 Morin Rolland L Liquid distribution system
US4782857A (en) * 1986-02-07 1988-11-08 Sulzer Brothers Limited Method and apparatus for uniformly distributing solids-containing liquid
US4825906A (en) * 1988-06-06 1989-05-02 Hartman Thomas A Angle pattern control valve
US4934407A (en) * 1988-02-29 1990-06-19 Abb Stal Ab Manifold for gas from parallel-working gas cleaning units
US5095930A (en) * 1989-04-21 1992-03-17 Hoechst Aktiengesellschaft Process for the uniform introduction of a fluid, and apparatus for carrying out the process
US5437299A (en) * 1994-06-07 1995-08-01 Atlantic Richfield Company Multiphase fluid flow splitting and measurement
US5546814A (en) * 1994-10-26 1996-08-20 The Foxboro Company Parallel-flow coriolis-type mass flowmeter with flow-dividing manifold
US5904807A (en) * 1994-09-27 1999-05-18 Hadwaco Ltd. Oy Liquid distributor for an evaporator
US20050045232A1 (en) * 2003-08-29 2005-03-03 Van Decker Gerald W.E. Non-pressurized flow-splitting water supply system
US20050161094A1 (en) * 2003-07-08 2005-07-28 Gea Energietechnik Gmbh Exhaust-steam pipeline for a steam power plant
US20070062592A1 (en) * 2003-03-03 2007-03-22 Thomas Larsson Manifold comprising a body with a conical inner surface such that the cross-sectional area decreases in the direction of flow
US20090178720A1 (en) * 2008-01-14 2009-07-16 Torres Marlene H Tee Flow Splitter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189518745A (en) * 1895-10-07 1896-08-15 Reeves Patent Filters Company Improvements in and connected with Pipes for Conducting and Distributing Liquids.
US3037629A (en) * 1958-12-23 1962-06-05 Stamicarbon Separating a mixture of solid particles of various sizes suspended in liquid
US3405725A (en) * 1964-03-24 1968-10-15 Sperry Rand Corp Fluid flow dividing means for fluid control devices

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189518745A (en) * 1895-10-07 1896-08-15 Reeves Patent Filters Company Improvements in and connected with Pipes for Conducting and Distributing Liquids.
US3037629A (en) * 1958-12-23 1962-06-05 Stamicarbon Separating a mixture of solid particles of various sizes suspended in liquid
US3405725A (en) * 1964-03-24 1968-10-15 Sperry Rand Corp Fluid flow dividing means for fluid control devices

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016033A (en) * 1975-03-01 1977-04-05 J. M. Voith Gmbh Distribution means for aqueous slurry in papermaking machines
US4706885A (en) * 1984-08-06 1987-11-17 Morin Rolland L Liquid distribution system
US4609009A (en) * 1985-12-11 1986-09-02 Environmental Elements Corp. Stepped plenum system
EP0225423A2 (en) * 1985-12-11 1987-06-16 Environmental Elements Corporation Stepped plenum system
EP0225423A3 (en) * 1985-12-11 1988-08-03 Environmental Elements Corporation Stepped plenum system
US4782857A (en) * 1986-02-07 1988-11-08 Sulzer Brothers Limited Method and apparatus for uniformly distributing solids-containing liquid
US4934407A (en) * 1988-02-29 1990-06-19 Abb Stal Ab Manifold for gas from parallel-working gas cleaning units
US4825906A (en) * 1988-06-06 1989-05-02 Hartman Thomas A Angle pattern control valve
US5095930A (en) * 1989-04-21 1992-03-17 Hoechst Aktiengesellschaft Process for the uniform introduction of a fluid, and apparatus for carrying out the process
US5437299A (en) * 1994-06-07 1995-08-01 Atlantic Richfield Company Multiphase fluid flow splitting and measurement
US5904807A (en) * 1994-09-27 1999-05-18 Hadwaco Ltd. Oy Liquid distributor for an evaporator
US5546814A (en) * 1994-10-26 1996-08-20 The Foxboro Company Parallel-flow coriolis-type mass flowmeter with flow-dividing manifold
US20070062592A1 (en) * 2003-03-03 2007-03-22 Thomas Larsson Manifold comprising a body with a conical inner surface such that the cross-sectional area decreases in the direction of flow
US7726698B2 (en) 2003-03-03 2010-06-01 Uponor Innovation Ab Manifold comprising a body with a conical inner surface such that the cross-sectional area decreases in the direction of flow
US20050161094A1 (en) * 2003-07-08 2005-07-28 Gea Energietechnik Gmbh Exhaust-steam pipeline for a steam power plant
US7168448B2 (en) * 2003-07-08 2007-01-30 Gea Energietechnik Gmbh Exhaust-steam pipeline for a steam power plant
US20050045232A1 (en) * 2003-08-29 2005-03-03 Van Decker Gerald W.E. Non-pressurized flow-splitting water supply system
US7096885B2 (en) * 2003-08-29 2006-08-29 Renewability Energy Inc. Non-pressurized flow-splitting water supply system
US20090178720A1 (en) * 2008-01-14 2009-07-16 Torres Marlene H Tee Flow Splitter
US7942162B2 (en) 2008-01-14 2011-05-17 National Tank Company Tee flow splitter

Similar Documents

Publication Publication Date Title
US3794056A (en) Fluidic pulse and flow divider
ES368034A1 (en) Check valve with restricted bypass flow
US3226023A (en) Fluid scalars
GB1243016A (en) Fluidic control device
US3261372A (en) Fluid control element
GB1151009A (en) Screw Machines.
US3348773A (en) Fluidic flip flop devices
US3576291A (en) Vortex analog to digital converter having time modulated output
GB1390664A (en) Circuits utilizing gyrators
KR102008743B1 (en) The venturi tube of plate type
US3378197A (en) Fluonic binary counter using fluid logic units
US3486692A (en) Settable fluidic flip-flop
Hagis A correction of some theorems on partitions
US3334644A (en) Multistable device
US3323722A (en) Pure fluid shift register
US3548850A (en) Fluidic summing junction
OIKNINE et al. Theoretical determination of the velocity profile in the isobaric zone downstream from a step-shaped wall in the case of an incompressible fluid(Velocity profile in isobaric zone downstream from step-shaped wall in case of incompressible fluid)
US3527403A (en) Counter-comparator system
GB1290324A (en)
GB1423933A (en) Mixing element for fluid mixing devices
Rom et al. A theoretical and experimental determination of the base-pressure behind a two-dimensional backward facing step in a laminar supersonic flow(Theoretical and experimental determination of base-pressure field behind two-dimensional backward facing step in laminar supersonic flow)
BETCHOV et al. Shear layer stability of a viscous, incompressible and two-dimensional flow between two parallel streams
HUNG Effect of an instantaneous change in viscosity on the calculation of a laminar vortex(Effect of instantaneous change in viscosity on laminar vortex of flow through suddenly widening pipe)
US3490476A (en) Fluidic stepping apparatus
OIKNINE et al. Structure of the flow downstream from a step- shaped wall(Flow of turbulent incompressible fluid downstream from step-shaped wall, determining velocity fields in isobaric region, considering existence of boundary layer thickness at separation point)