GB927325A - Improvements in hydraulic pumps - Google Patents

Improvements in hydraulic pumps

Info

Publication number
GB927325A
GB927325A GB590562A GB590562A GB927325A GB 927325 A GB927325 A GB 927325A GB 590562 A GB590562 A GB 590562A GB 590562 A GB590562 A GB 590562A GB 927325 A GB927325 A GB 927325A
Authority
GB
United Kingdom
Prior art keywords
gear pump
housing
outlet
casing
swash plate
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
GB590562A
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.)
W A WHITNEY Manufacturing CO
Original Assignee
W A WHITNEY Manufacturing CO
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 W A WHITNEY Manufacturing CO filed Critical W A WHITNEY Manufacturing CO
Publication of GB927325A publication Critical patent/GB927325A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/106—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being an axial piston pump
    • 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
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • 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
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • 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
    • Y10T137/85978—With pump
    • Y10T137/86131—Plural
    • Y10T137/86163—Parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

927,325. Reciprocating pumps. W. A. WHITNEY MANUFACTURING CO. Feb. 15, 1962 [April 6, 1961], No. 5905/62. Class 102(1). In a pump for alternately supplying two utility points, e.g. a double acting motor for a machine tool, a cylindrical casing 23, Fig. 1, housing a reversible gear pump unit feeding a swash plate pump unit is rotatably mounted in a housing 13, the arrangement being such that reversing of the direction of rotation of the gear pump causes the casing to turn thereby aligning an outlet 53 in the end of the casing with one of two apertures 57, 58 in the housing leading to the utility points. A reversible electric motor 15 drives gear pump 25, 30 and swash plate 37 through shafts 17, 18. Movement of casing 23 is limited by a pin 72 in an arcuate slot 73. Liquid is drawn from a housing reservoir 33 via a filter 32. A spring-loaded sleeve 89 in outlet 53 provides a seal between the casing and the housing. An arrangement of check valves in the gear pump supply and delivery lines, Fig. 5, ensures unidirectional flow in either direction of rotation of the gear pump. An unloading valve 50 by passes the gear pump output to the reservoir when the required feed pressure is exceeded. The aperture 57, 58 not aligned with outlet 53 serves to return liquid from the utility points to the reservoir via a groove 87, 88. High pressure relief valves 80 are provided in the two outlet conduits. Check valves control the inlet and outlet of each cylinder of the swash plate pump unit. The assembly is readily dismantled and is portable by a handle 14.
GB590562A 1961-04-06 1962-02-15 Improvements in hydraulic pumps Expired GB927325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10125061 US3117419A (en) 1961-04-06 1961-04-06 Hydraulic pump

Publications (1)

Publication Number Publication Date
GB927325A true GB927325A (en) 1963-05-29

Family

ID=22283697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB590562A Expired GB927325A (en) 1961-04-06 1962-02-15 Improvements in hydraulic pumps

Country Status (4)

Country Link
US (1) US3117419A (en)
CH (1) CH384371A (en)
DE (1) DE1849591U (en)
GB (1) GB927325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138655A1 (en) * 2007-05-11 2008-11-20 Robert Bosch Gmbh Hydraulic system having a reversible gear pump

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418942A (en) * 1966-10-13 1968-12-31 Avco Corp Contamination-resistant fuel pump with eccentrically located drive shaft
US4631006A (en) * 1985-02-19 1986-12-23 Robinair Division Compact vacuum pump
US7674096B2 (en) * 2004-09-22 2010-03-09 Sundheim Gregroy S Portable, rotary vane vacuum pump with removable oil reservoir cartridge
DE102011055194B4 (en) * 2011-11-10 2018-01-18 Gkn Walterscheid Gmbh Hydraulic pump assembly

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717814A (en) * 1926-08-25 1929-06-18 Bliss E W Co Lubricating system
US1946510A (en) * 1930-05-30 1934-02-13 Fred A Truesdell Hydraulic mechanism
US1893125A (en) * 1931-01-22 1933-01-03 Central Ohio Steel Products Co Reversible pump for hydraulic hoists
US2128330A (en) * 1935-07-05 1938-08-30 Ida Wilhelm Brugger Epicycle engine
GB516790A (en) * 1938-07-08 1940-01-11 James Cecil Irving Mcconnel Improvements in or relating to fluid pumps or engines
FR954077A (en) * 1941-05-09 1949-12-19 Const Mecaniques De La Vallee High pressure hydraulic pump
US2299824A (en) * 1941-06-02 1942-10-27 Kalin Albert Governor
US2414187A (en) * 1943-04-19 1947-01-14 Borsting Erling Rotary compressor or supercharger
US2661700A (en) * 1946-05-03 1953-12-08 Electraulic Presses Ltd Axial type reciprocating pump, compressor, motor, and engine
GB646310A (en) * 1948-04-29 1950-11-22 Millars Machinery Company Ltd Improvements in and relating to hydraulic power transmission
US2808780A (en) * 1952-10-07 1957-10-08 Philips Corp Rotary pump
US2766693A (en) * 1952-11-05 1956-10-16 Sundstrand Machine Tool Co Pump
US2780170A (en) * 1953-11-17 1957-02-05 Sundstrand Machine Tool Co Supercharging system for fluid pumps
GB828115A (en) * 1956-11-30 1960-02-17 Hobourn Eaton Mfg Co Ltd Reversible rotary pump giving unidirectional fluid flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138655A1 (en) * 2007-05-11 2008-11-20 Robert Bosch Gmbh Hydraulic system having a reversible gear pump

Also Published As

Publication number Publication date
DE1849591U (en) 1962-04-05
CH384371A (en) 1964-11-15
US3117419A (en) 1964-01-14

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