GB965470A - Improvements in or relating to hydraulic pumps or motors - Google Patents

Improvements in or relating to hydraulic pumps or motors

Info

Publication number
GB965470A
GB965470A GB3571161A GB3571161A GB965470A GB 965470 A GB965470 A GB 965470A GB 3571161 A GB3571161 A GB 3571161A GB 3571161 A GB3571161 A GB 3571161A GB 965470 A GB965470 A GB 965470A
Authority
GB
United Kingdom
Prior art keywords
region
bore
pump
gear
pressure side
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
GB3571161A
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB965470A publication Critical patent/GB965470A/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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • 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
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/34—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type in which a rotor on one shaft co-operates with a rotor on another shaft
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

965,470. Gear pumps and motors. R. BOSCH G.m.b.H. Oct. 4, 1961 [Oct. 8, 1960], No. 35711/61. Heading F1F. In an hydraulic gear pump or motor, the gear wheel shafts on each side of the gears 6, 7, are journalled in a common bearing member 10, 11, pressed against the gear wheels and housing by hydraulic pressure, and a clearance 16 is formed between each member 10, 11 and the housing 1, through which high pressure fluid communicates with a region 17 on the end face of the member 10, 11, and an adjacent region 18 of the member 10, 11, on the low pressure side of the pump, whilst a region 23 on the end face of the member 10, 11, and a region 22 of the member 10, 11, communicate with the low pressure side of the pump. The regions are separated by seals 19 and 25, the former urged against the housing by high pressure fluid. Bores 28 and 29 communicate low and high pressures respectively. Each region 22 may be peripherally extended by grooves in the members 10, 11 (Fig. 3, not shown). If the apparatus is to be reversible, a further seal such as 19 and bore such as 29 are provided, being symmetrical to the seal and bore shown with respect to a plane passing through the axes of the gears, and the two regions 23 are connected by a bore through one gear shaft, and are connected to an oil leakage path instead of bore 28, or are connected to both sides of the pump through non-return valves, Figs. 5-7 (not shown). A region on the high pressure side of member 10 or 11 may be enclosed by an endless seal, and connected through a bore to the low pressure side, Figs. 8 and 9 (not shown).
GB3571161A 1960-10-08 1961-10-04 Improvements in or relating to hydraulic pumps or motors Expired GB965470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB59690A DE1264958B (en) 1960-10-08 1960-10-08 Gear pump or motor

Publications (1)

Publication Number Publication Date
GB965470A true GB965470A (en) 1964-07-29

Family

ID=6972555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3571161A Expired GB965470A (en) 1960-10-08 1961-10-04 Improvements in or relating to hydraulic pumps or motors

Country Status (3)

Country Link
CH (1) CH393929A (en)
DE (1) DE1264958B (en)
GB (1) GB965470A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573889A (en) * 1982-11-10 1986-03-04 Lucas Industries, Ltd. Bearings for gear pumps
WO1995024560A1 (en) * 1994-03-08 1995-09-14 Alliedsignal Inc. Housing for intermeshing gear pump
EP0692633A1 (en) * 1994-07-14 1996-01-17 CASAPPA S.p.A. A gear pump
EP0802326A1 (en) * 1996-04-15 1997-10-22 John S. Barnes GmbH Pressure gradient controlled gear machine
ES2232221A1 (en) * 2002-02-07 2005-05-16 Pedro Roquet, S.A. Hydraulic oil motor, has static and dynamic balancing machine mounted with auxiliary mechanisms, and two covers and speed varying output shafts rotated in opposite directions and dynamically connected to sprockets
ITBO20080522A1 (en) * 2008-08-12 2010-02-13 Settima Flow Mechanisms Srl ROTARY GEAR VOLUMETRIC PUMP
CN105298835A (en) * 2015-11-17 2016-02-03 天津百利机械装备集团有限公司中央研究院 Dynamic and static pressure bearing circular tooth gear oil pump
EP4039979A4 (en) * 2019-10-03 2023-10-25 IHI Corporation Gear pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746482A (en) * 1971-10-06 1973-07-17 Improved Machinery Inc Pump having discharge baffle means
DE3939653A1 (en) * 1989-11-30 1990-09-13 Daimler Benz Ag Twin-wheel externally meshing gear pump - with application of pump pressure to free gear
DE10355172B3 (en) * 2003-11-26 2005-06-02 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Compressor device of an excavator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728301A (en) * 1952-06-17 1955-12-27 Lindberg Trust Gear pump
US2871794A (en) * 1953-06-01 1959-02-03 Roper Ind Inc Gear pump or fluid motor
DE1006722B (en) * 1953-08-06 1957-04-18 Otto Eckerle Gear pump
GB782701A (en) * 1955-03-23 1957-09-11 David Brown Tractors Eng Ltd An improvement in or relating to gear pumps
AT207254B (en) * 1958-03-29 1960-01-25 Hans Dipl Ing Molly Hydraulic machine with hydraulic forces acting in a pressure field

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573889A (en) * 1982-11-10 1986-03-04 Lucas Industries, Ltd. Bearings for gear pumps
WO1995024560A1 (en) * 1994-03-08 1995-09-14 Alliedsignal Inc. Housing for intermeshing gear pump
EP0692633A1 (en) * 1994-07-14 1996-01-17 CASAPPA S.p.A. A gear pump
US5624251A (en) * 1994-07-14 1997-04-29 Casappa S.P.A. Gear pump
EP0802326A1 (en) * 1996-04-15 1997-10-22 John S. Barnes GmbH Pressure gradient controlled gear machine
US5730589A (en) * 1996-04-15 1998-03-24 John S. Barnes Gmbh Hydraulic displacement machine having gears pressed toward each other
ES2232221A1 (en) * 2002-02-07 2005-05-16 Pedro Roquet, S.A. Hydraulic oil motor, has static and dynamic balancing machine mounted with auxiliary mechanisms, and two covers and speed varying output shafts rotated in opposite directions and dynamically connected to sprockets
ITBO20080522A1 (en) * 2008-08-12 2010-02-13 Settima Flow Mechanisms Srl ROTARY GEAR VOLUMETRIC PUMP
EP2154372A1 (en) * 2008-08-12 2010-02-17 Settima Flow Mechanisms Srl. Gear pump
CN105298835A (en) * 2015-11-17 2016-02-03 天津百利机械装备集团有限公司中央研究院 Dynamic and static pressure bearing circular tooth gear oil pump
EP4039979A4 (en) * 2019-10-03 2023-10-25 IHI Corporation Gear pump
US11852142B2 (en) 2019-10-03 2023-12-26 Ihi Corporation Gear pump with floating bearing with receiver faces

Also Published As

Publication number Publication date
CH393929A (en) 1965-06-15
DE1264958B (en) 1968-03-28

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