GB1309926A - Hydraulic units - Google Patents

Hydraulic units

Info

Publication number
GB1309926A
GB1309926A GB2541770A GB2541770A GB1309926A GB 1309926 A GB1309926 A GB 1309926A GB 2541770 A GB2541770 A GB 2541770A GB 2541770 A GB2541770 A GB 2541770A GB 1309926 A GB1309926 A GB 1309926A
Authority
GB
United Kingdom
Prior art keywords
spool
pass
pair
discharge orifice
main discharge
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
GB2541770A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE19691927073 external-priority patent/DE1927073C3/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1309926A publication Critical patent/GB1309926A/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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • 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
    • F04C2/3441—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 one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3445—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 one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Safety Valves (AREA)

Abstract

1309926 Valves ROBERT BOSCH GmbH 27 May 1970 [28 May 1969] 25417/70 Heading F2V [Also in Division F1] A control and relief spool valve is exposed at one end to the fluid pressure output of a pump, the other end of the spool co-operating with a pair of springs arranged to act progressively on the spool. At very low output pressures, one spring holds a cap on the said one end of the spool against a main discharge orifice, and a pair of annular grooves and a longitudinal groove in the surface of the spool provide a by-pass for the fluid. Increased output pressure opens the main discharge orifice and closes the by-pass. Excess pressure moves the spool against the action of the second spring to establish direct communication with the by-pass outlet.
GB2541770A 1969-05-28 1970-05-27 Hydraulic units Expired GB1309926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691927073 DE1927073C3 (en) 1969-05-28 Hydraulic unit

Publications (1)

Publication Number Publication Date
GB1309926A true GB1309926A (en) 1973-03-14

Family

ID=5735363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2541770A Expired GB1309926A (en) 1969-05-28 1970-05-27 Hydraulic units

Country Status (6)

Country Link
US (1) US3639085A (en)
JP (1) JPS5018203B1 (en)
CH (1) CH512671A (en)
FR (1) FR2047723A5 (en)
GB (1) GB1309926A (en)
SE (1) SE352405B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014080A1 (en) * 1980-04-12 1981-10-15 Robert Bosch Gmbh, 7000 Stuttgart Roll or vane fuel pump - has rolls fitted with smallest free play in rotor disc grooves, with proportioning groove extending to suction side
GB2158156A (en) * 1984-04-25 1985-11-06 Facet Enterprises Rotary liquid pump
EP1803926A1 (en) 2005-12-28 2007-07-04 HONDA MOTOR CO., Ltd. Fuel pump module

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207033A (en) * 1976-12-06 1980-06-10 Trw Inc. Pump and motor assembly for use in regulating a flow of fuel from a source of fuel to an operating chamber of an engine of a vehicle
US4195971A (en) * 1977-08-08 1980-04-01 Chrysler Corporation Fuel pump and motor assembly
US4201521A (en) * 1978-03-20 1980-05-06 Trw Inc. Pump and motor assembly
DE3780231T2 (en) * 1986-08-09 1993-03-04 Nippon Denso Co MOTOR DRIVEN RADIAL PISTON PUMP.
US5544496A (en) * 1994-07-15 1996-08-13 Delaware Capital Formation, Inc. Refrigeration system and pump therefor
US5683229A (en) * 1994-07-15 1997-11-04 Delaware Capital Formation, Inc. Hermetically sealed pump for a refrigeration system
DE19633170A1 (en) * 1996-08-17 1998-02-19 Teves Gmbh Alfred Electric motor / pump unit
JP2003314469A (en) * 2002-04-24 2003-11-06 Matsushita Electric Ind Co Ltd Refrigerant pump
US6758416B2 (en) 2002-08-30 2004-07-06 Robert Bosch Gmbh Fuel injector having an expansion tank accumulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1009778A (en) * 1948-06-24 1952-06-03 Balanced screw pump
US2681010A (en) * 1950-03-31 1954-06-15 E M B Elektromotorenbau A G Device compensating the axial thrusts exerted on the shaft carrying the turbine's wheel of circulating pumps
US2809590A (en) * 1954-01-29 1957-10-15 Robert J Brown Electric motor driven pump
FR1316195A (en) * 1962-02-26 1963-01-25 Acf Ind Electric pump for liquid fuel
US3267868A (en) * 1963-11-13 1966-08-23 Barnes Mfg Co Electric motor with plural cooling paths through the shaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014080A1 (en) * 1980-04-12 1981-10-15 Robert Bosch Gmbh, 7000 Stuttgart Roll or vane fuel pump - has rolls fitted with smallest free play in rotor disc grooves, with proportioning groove extending to suction side
GB2158156A (en) * 1984-04-25 1985-11-06 Facet Enterprises Rotary liquid pump
EP1803926A1 (en) 2005-12-28 2007-07-04 HONDA MOTOR CO., Ltd. Fuel pump module

Also Published As

Publication number Publication date
JPS5018203B1 (en) 1975-06-27
DE1927073A1 (en) 1970-12-10
FR2047723A5 (en) 1971-03-12
US3639085A (en) 1972-02-01
SE352405B (en) 1972-12-27
DE1927073B2 (en) 1975-11-06
CH512671A (en) 1971-09-15

Similar Documents

Publication Publication Date Title
GB1365143A (en) Variable bypass for fluid power transfer systems
GB1288351A (en)
GB1309926A (en) Hydraulic units
ES402480A1 (en) Fluid power braking and steering system
GB1448997A (en) Pumps looms
ES413538A1 (en) Variable pressure hydraulic system
GB1253748A (en) An improved self-operated pressure limiting valve for liquids
GB1397700A (en) Fuel injection system
GB1309162A (en) Fluid flow-regulating valves
GB1315064A (en) Hydraulic control system for a variable displacement pump supplied by a feed pump
GB1437703A (en) Hydraulic pressure control valve
ES480099A1 (en) Arrangement for a hydraulic brake booster
GB1295499A (en)
GB1249963A (en) Multiway valve
GB1139763A (en) A hydraulic pressure control system
GB959956A (en) Flow control valve
GB1128164A (en) Improvements in or relating to fluid flow control valves
GB980587A (en) Pressure regulating valves
GB822876A (en) Improved master cylinder for hydraulic braking installation or the like
GB1422939A (en) Hydraulic valves
GB1216837A (en) Liquid fuel injection pumps
GB1176590A (en) Improvements in or relating to Cushion Relief Valves
GB944167A (en) Improvements in or relating to hydraulic circuits
GB1122092A (en) Improvements in hydraulic accumulators
GB1341338A (en) Anti-skid braking systems

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years