GB1308295A - Liquid pump or motor - Google Patents

Liquid pump or motor

Info

Publication number
GB1308295A
GB1308295A GB1308295DA GB1308295A GB 1308295 A GB1308295 A GB 1308295A GB 1308295D A GB1308295D A GB 1308295DA GB 1308295 A GB1308295 A GB 1308295A
Authority
GB
United Kingdom
Prior art keywords
gears
boss
shafts
low pressure
fluid
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
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of GB1308295A publication Critical patent/GB1308295A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more 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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
    • F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C3/085—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing the axes of cooperating members being on the same plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1308295 Rotary pumps or motors JOSEPH LUCAS (INDUSTRIES) Ltd 8 May 1970 [25 Feb 1969 14 Aug 1969] 9906/69 and 40631/69 Heading F1F A rotary hydraulic pump or motor comprises a pair of mutually inclined intermeshing bevel gears 36, 37 mounted in a generally spherical chamber 34, 35 formed by a pair of housing members 30, 31, high pressure and low pressure ports being formed in the housing members adjacent to and on each side of the zone of intermesh, and a wedge-shaped sealing member 47 Fig. 6, being fixed to the housing member 31, to seal a portion of the tooth spaces of each gear between the high pressure and low pressure ports. The gears 36, 37 are mounted on hollow shafts 38, 39 rotatable in bearings 32, 33, and surround a spherical boss 45 mounted on a wedge-shaped support 46 secured to the housing member 31. Pressure balancing of the gears 36, 37 is effected by grooves formed in the surfaces of the chambers 34, 35 and communicating with the high and low pressure ports. High pressure fluid is also fed to the bearings 32, 33 to assist balancing, elliptical seals 75 resulting in an assymetic load on the shafts 38, 39. Leakage fluid entering the bores of the shafts 38, 39 is returned to the low pressure ports via passages 72, 73 in the boss 45. In the modified arrangement of Fig. 7 (not shown), an impeller is mounted on the end of one of the gear shafts to feed fluid to the inlet ports. In the modifications of Figs. 8 and 9 (not shown) fluid is fed to the gears via passages in the wedgeshaped support and the boss, and via the hollow shaft of one of the gears and passages in the boss respectively.
GB1308295D 1969-02-25 1969-02-25 Liquid pump or motor Expired GB1308295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB990669 1969-02-25

Publications (1)

Publication Number Publication Date
GB1308295A true GB1308295A (en) 1973-02-21

Family

ID=9880983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308295D Expired GB1308295A (en) 1969-02-25 1969-02-25 Liquid pump or motor

Country Status (1)

Country Link
GB (1) GB1308295A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111619A1 (en) * 1982-11-17 1984-06-27 International Hydraulic Systems, Inc. Spherical gear pump
WO2010018053A2 (en) * 2008-08-12 2010-02-18 Robert Bosch Gmbh Spur gearwheel pump
WO2010063765A2 (en) 2008-12-02 2010-06-10 Boegelein Hans Apparatus for pumping liquids or fluids, comprising a housing
WO2010086267A3 (en) * 2009-01-28 2011-03-17 Robert Bosch Gmbh Rotary piston engine having an external rotor motor
CN105756933A (en) * 2016-04-26 2016-07-13 无锡博泰微流体技术有限公司 Gear dead-point-passing mechanism of spherical compressor
CN105782022A (en) * 2016-04-26 2016-07-20 无锡博泰微流体技术有限公司 Cooling mechanism of ball pump

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111619A1 (en) * 1982-11-17 1984-06-27 International Hydraulic Systems, Inc. Spherical gear pump
US4540343A (en) * 1982-11-17 1985-09-10 International Hydraulic Systems, Inc. Spherical gear pump
WO2010018053A2 (en) * 2008-08-12 2010-02-18 Robert Bosch Gmbh Spur gearwheel pump
WO2010018053A3 (en) * 2008-08-12 2010-06-17 Robert Bosch Gmbh Spur gearwheel pump
WO2010063765A2 (en) 2008-12-02 2010-06-10 Boegelein Hans Apparatus for pumping liquids or fluids, comprising a housing
WO2010063765A3 (en) * 2008-12-02 2011-01-06 Boegelein Hans Apparatus for pumping fluids
WO2010086267A3 (en) * 2009-01-28 2011-03-17 Robert Bosch Gmbh Rotary piston engine having an external rotor motor
US8777595B2 (en) 2009-01-28 2014-07-15 Robert Bosch Gmbh Rotary piston engine
CN105756933A (en) * 2016-04-26 2016-07-13 无锡博泰微流体技术有限公司 Gear dead-point-passing mechanism of spherical compressor
CN105782022A (en) * 2016-04-26 2016-07-20 无锡博泰微流体技术有限公司 Cooling mechanism of ball pump
CN105756933B (en) * 2016-04-26 2017-10-10 无锡博泰微流体技术有限公司 A kind of spherical compressor gear crosses dead point mechanism

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee