UST927009I4 - Plgi i pq - Google Patents

Plgi i pq Download PDF

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Publication number
UST927009I4
UST927009I4 US927009DH UST927009I4 US T927009 I4 UST927009 I4 US T927009I4 US 927009D H US927009D H US 927009DH US T927009 I4 UST927009 I4 US T927009I4
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United States
Prior art keywords
housing
pressure
cam
rotor assembly
pump
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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.)
Pending
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Publication of UST927009I4 publication Critical patent/UST927009I4/en
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    • 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
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • F04C2/3447—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface the vanes having the form of rollers, slippers or the like

Definitions

  • a positive displacement pump adapted especially for use in power steering systems for automotive vehicles comprising a pump housing, a pump cam and rotor assembly received Within the housing, ported pressure plates situated on opposed sides of the cam and rotor assembly, the outermost pressure plate being secured fast to the housing and the innermost pressure plate being urged into sealing engagement with the cam and rotor assembly and cooperating with the housing to define a high pressure region which communicates With a pressure-relief and flow-control valve assembly in the housing and a reservoir surrounding the housing and communicating with the inlet side of the flow-control portions of the valve assembly and the outlet side of the pressure-relief portions.

Abstract


WITH THE INLET SIDE OF THE FLOW-CONTROL PORTIONS OF THE VALVE ASSEMBLY AND THE OUTLET SIDE OF THE PRESSURE-RELIEF PORTIONS.
A POSITIVE DISPLACEMENT PUMP ADAPTED ESPECIALLY FOR USE IN POWER STEERING SYSTEMS FOR AUTOMOTIVE VEHICLES COMPRISING A PUMP HOUSING, A PUMP CAM AND ROTOR ASSEMBLY RECEIVED WITHIN THE HOUSING, PORTED PRESSURE PLATES SITUATED ON OPPOSED SIDES OF THE CAM AND ROTOR ASSEMBLY, THE OUTERMOST PRESSURE PLATE BEING SECURED FAST TO THE HOUSING AND THE INNERMOST PRESSURE PLATE BEING URGED INTO SEALING ENGAGEMENT WITH THE CAM AND ROTOR ASSEMBLY AND COOPERATING WITH THE HOUSING TO DEFINE A HIGH PRESSURE REGION WHICH COMMUNICATES WITH A PRESSURE-RELIEF AND FLOW-CONTROL VALVE ASSEMBLY IN THE HOUSING AND A RESERVOIR SURROUNDING THE HOUSING AND COMMUNICATING

Description

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice 0! Dec. 16, 1969, 869 DE. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oiiice make: no assertion as to the novelty of the disclosed subject matter.
PUBLISHED OCTOBER 1, 1974 T927,009 COMPACT POSITIVE DISPLACEMENT PUMP Glenn A. Ulrich, Birmingham, Mich assignor to Ford Motor Company, Dearborn, Mich.
Continuation of application Ser. No. 187,104, Oct. 8,
1971. This application Oct. 23, 1973, Ser. No. 408,713
Int. Cl. Ffllc 19/10 US. Cl. 418-133 6 Sheets Drawing. 12 Pages Specification A positive displacement pump adapted especially for use in power steering systems for automotive vehicles comprising a pump housing, a pump cam and rotor assembly received Within the housing, ported pressure plates situated on opposed sides of the cam and rotor assembly, the outermost pressure plate being secured fast to the housing and the innermost pressure plate being urged into sealing engagement with the cam and rotor assembly and cooperating with the housing to define a high pressure region which communicates With a pressure-relief and flow-control valve assembly in the housing and a reservoir surrounding the housing and communicating with the inlet side of the flow-control portions of the valve assembly and the outlet side of the pressure-relief portions.
Oct. 1, 1974 ULRICH T927,009
COMPACT POSITIVE DISPLACEMENT l'UMP Original Filed Oct 8 L971 6 Sheets-Sheet 1 Oct. 1, 1974 ULR|CH I T927,009
COMPACT POSITIVE DISPLACEMENT PUMP Original Filed Oct. 8. i971 6 Sheets-Sheet J 06L 1974 G. A. ULRICH T927,009
COMPACT POSITIVE DISPLACEMENT PUMP Original Filed Oct. 8, 1971 6 Sheets-Sheet 4 Oct. 1, 1974 G. A. ULRICH T927,009
COMPACT POSITIVE DISPLACEMENT PUMP Original Filed Oct. 8. 1971 6 Sheets-Sheet 5 Oct. 1, 1974 ULRICH TQZ'LOUQ COMPACT POSITIVE DISPLACEMENT PUMP Original Filed Oct. 8. 1971 6 Sheets-Sheet B
US927009D 1973-10-23 1973-10-23 Plgi i pq Pending UST927009I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40871373A 1973-10-23 1973-10-23

Publications (1)

Publication Number Publication Date
UST927009I4 true UST927009I4 (en) 1974-10-01

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ID=23617444

Family Applications (1)

Application Number Title Priority Date Filing Date
US927009D Pending UST927009I4 (en) 1973-10-23 1973-10-23 Plgi i pq

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US (1) UST927009I4 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505655A (en) 1980-12-27 1985-03-19 Toyoda Koki Kabushiki Kaisha Vane pump with positioning pins for cam ring and side plates
EP0921314A1 (en) * 1997-12-08 1999-06-09 Van Doorne's Transmissie B.V. Roller vane pump
US20130170959A1 (en) * 2011-12-29 2013-07-04 Quanxing Machining Group Co., Ltd Power steering pump
US20150110661A1 (en) * 2012-05-21 2015-04-23 Nabtesco Automotive Corporation Vacuum pump

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505655A (en) 1980-12-27 1985-03-19 Toyoda Koki Kabushiki Kaisha Vane pump with positioning pins for cam ring and side plates
EP0921314A1 (en) * 1997-12-08 1999-06-09 Van Doorne's Transmissie B.V. Roller vane pump
US6152711A (en) * 1997-12-08 2000-11-28 Van Doorne's Transmissie B.V. Roller vane pump having a suction port through the cam ring
US6312243B1 (en) 1997-12-08 2001-11-06 Van Doorne's Transmissie B.V. Roller vane pump having straight line segments on the rotor
US6375445B1 (en) 1997-12-08 2002-04-23 Van Doorne's Transmissie B.V. Roller vane pump having a partly curved vane slot
US20130170959A1 (en) * 2011-12-29 2013-07-04 Quanxing Machining Group Co., Ltd Power steering pump
US20150110661A1 (en) * 2012-05-21 2015-04-23 Nabtesco Automotive Corporation Vacuum pump
US9841023B2 (en) * 2012-05-21 2017-12-12 Nabtesco Automotive Corporation Vacuum pump
EP2878824B1 (en) * 2012-05-21 2019-08-21 Nabtesco Automotive Corporation Vacuum pump

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