GB1191735A - Improvements in or relating to a Flow Control Apparatus - Google Patents

Improvements in or relating to a Flow Control Apparatus

Info

Publication number
GB1191735A
GB1191735A GB3446967A GB3446967A GB1191735A GB 1191735 A GB1191735 A GB 1191735A GB 3446967 A GB3446967 A GB 3446967A GB 3446967 A GB3446967 A GB 3446967A GB 1191735 A GB1191735 A GB 1191735A
Authority
GB
United Kingdom
Prior art keywords
nozzle
july
degrees
approximately
valve member
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
Application number
GB3446967A
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.)
Hobourn Eaton Manufacturing Co Ltd
Original Assignee
Hobourn Eaton Manufacturing Co Ltd
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 Hobourn Eaton Manufacturing Co Ltd filed Critical Hobourn Eaton Manufacturing Co Ltd
Publication of GB1191735A publication Critical patent/GB1191735A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2579—Flow rate responsive
    • Y10T137/2599—Venturi

Abstract

1,191,735. Valves. HOBOURN-EATON MFG. CO. Ltd. 26 July, 1967 [29 July, 1966], No. 34469/67. Heading F2V. [Also in Division Fl] In an apparatus for producing a substantially constant flow, e.g. to an hydraulic power steering mechanism of a motor vehicle, from a variable flow, e.g. from a pump 11 driven by the engine of the vehicle, a valve member 25 is arranged in the flow path 32, 33, 18 between the pump discharge 15 and the steering mechanism. The valve member is moved in accordance with the difference between the pressure at the upstream side of a convergent-divergent nozzle 41 and the pressure at the nozzle throat, to control the degree of opening of a by-pass port 17. The divergent portion of the nozzle has an included angle of approximately 14 degrees and is substantially longer, e.g. seven times longer, than the convergent portion. Preferably the latter has an included angle of approximately 60 degrees.
GB3446967A 1966-07-29 1967-07-26 Improvements in or relating to a Flow Control Apparatus Expired GB1191735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56885166 US3384020A (en) 1966-07-29 1966-07-29 Pump

Publications (1)

Publication Number Publication Date
GB1191735A true GB1191735A (en) 1970-05-13

Family

ID=24272998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3446967A Expired GB1191735A (en) 1966-07-29 1967-07-26 Improvements in or relating to a Flow Control Apparatus

Country Status (2)

Country Link
US (1) US3384020A (en)
GB (1) GB1191735A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547559A (en) * 1968-01-17 1970-12-15 Bosch Gmbh Robert Fluid flow control system
JPS5034250B1 (en) * 1969-04-01 1975-11-07
US3632238A (en) * 1969-09-05 1972-01-04 Eaton Yale & Towne Pump assembly
CH566505A5 (en) * 1974-04-09 1975-09-15 Von Roll Ag
US4199304A (en) * 1978-03-13 1980-04-22 Ford Motor Company Positive displacement compact slipper pump
IT1127689B (en) * 1978-12-13 1986-05-21 Hobourn Eaton Ltd VOLUMETRIC PUMP GROUP
IT1127688B (en) * 1978-12-13 1986-05-21 Hobourn Eaton Ltd VOLUMETRIC PUMP GROUP
EP0151657A1 (en) * 1984-02-04 1985-08-21 Vickers Systems GmbH Vane pump, especially for power steering
US4691797A (en) * 1986-07-10 1987-09-08 Trw Inc. Fluid flow control apparatus for a power steering system
US4768605A (en) * 1987-09-04 1988-09-06 Trw Inc. Apparatus for use in a power steering system
US4947951A (en) * 1988-08-01 1990-08-14 Trw Inc. Pressure responsive and electrically controllable flow control apparatus
JP2851903B2 (en) * 1990-03-14 1999-01-27 株式会社ユニシアジェックス Liquid pump
US5385329A (en) * 1993-02-16 1995-01-31 Techco Corporation Method and apparatus for enhancing stability in hydraulic flow control
US5775361A (en) * 1993-02-16 1998-07-07 Techco Corporation Method and apparatus for enhancing stability in hydraulic flow control
US5567125A (en) * 1995-01-06 1996-10-22 Trw Inc. Pump assembly with tubular bypass liner with at least one projection
FR2733815B1 (en) * 1995-05-03 1997-05-30 Snecma FLUID DISTRIBUTION VALVE
US5819777A (en) * 1995-07-07 1998-10-13 Unisia Jecs Corporation Flow control device
DE69616181T2 (en) * 1995-07-12 2002-05-29 Unisia Jecs Corp Flow control device for power steering
DE102004014434B3 (en) * 2004-03-24 2005-08-25 Siemens Ag Volume flow limiter, especially for a motor vehicle fuel pump, has a pressure return line connected to the narrow part of a venturi mounted in the outlet from the flow limiter and connected to the counter-pressure chamber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612112A (en) * 1947-11-24 1952-09-30 Cochrane Corp Condensate return system
US2747598A (en) * 1951-07-31 1956-05-29 Shell Dev Liquid-dispensing system with remote control
US2746250A (en) * 1952-06-17 1956-05-22 North American Aviation Inc Venturi control device for aircraft brake system
US2829664A (en) * 1952-09-04 1958-04-08 Shell Dev Fluid flow control valve with remote pressure control
US3146719A (en) * 1959-09-17 1964-09-01 Thompson Ramo Wooldridge Inc Combination pump and flow regulator
US3101187A (en) * 1960-09-12 1963-08-20 Wagner Electric Corp Fluid pressure operated piston valve

Also Published As

Publication number Publication date
US3384020A (en) 1968-05-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees