GB1312275A - Hydrostatic power systems - Google Patents

Hydrostatic power systems

Info

Publication number
GB1312275A
GB1312275A GB2198070A GB2198070A GB1312275A GB 1312275 A GB1312275 A GB 1312275A GB 2198070 A GB2198070 A GB 2198070A GB 2198070 A GB2198070 A GB 2198070A GB 1312275 A GB1312275 A GB 1312275A
Authority
GB
United Kingdom
Prior art keywords
pump
gears
transmission
motor
motors
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
GB2198070A
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 DE19691924010 external-priority patent/DE1924010C3/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1312275A publication Critical patent/GB1312275A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2035—Cylinder barrels
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0602—Component parts, details
    • F03C1/0607—Driven means
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/128—Driving means
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2007—Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • 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
    • F16H39/08—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 each with one main shaft and provided with pistons reciprocating in cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Gearings (AREA)
  • Hydraulic Motors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1312275 Hydrostatic transmission ROBERT BOSCH GmbH 7 May 1970 [10 May 1969] 21980/70 Heading F2C [Also in Division F1] A power unit operable as a pump, motor or hydrostatic transmission comprises at least two machines 2, 55 each operable as a pump or motor, mounted in a common housing and having their rotating parts connected by releasable coupling means. In the axial piston machine arrangement shown, the rotary cylinder blocks have meshing gears, one gear 26 being axially movable by fork 43 for releasably engaging the other gear. Valves 63 and 67 are operable in conjunction with fork 43 to hydraulically connect the machines so that, with the gears engaged, either single or double pump or motor operation is obtained, and with the gears disengaged, the machines operate in a closed circuit as a hydrostatic transmission, clutch 60 also being operated with fork 43 to couple shaft 56 to output shaft 59. When operating as a transmission, pump 70 makes up leakage losses. In Fig. 8 (not shown), forward and reverse rotation of the transmission output shaft is provided by reversing the inclination of the pump swash-plate, check valves being provided in lines connecting the make-up pump to the high and low pressure connecting lines of the transmission. The coupling gears alternatively may be provided on the cylinder block drive-shafts, together with synchronizing means, Fig. 11 (not shown). In Fig. 2 (not shown), the cylinder blocks are fixed and the swash-plates rotate, the coupling gears being mounted on the swash-plates. The axially movable gear arrangement may be replaced by a gear movable into and out of mesh with gears on the rotating parts of the pumps or motors, Fig. 9 (not shown). The axial piston pumps or motors may be replaced by radial piston pumps or motors. In Fig. 10 (not shown), three pumps or motors are arranged in a common housing, two of them having driveshafts, and a coupling means being provided for operation as a transmission with auxiliary pump, a double pump or motor, or a single pump or motor. Belt or chain drives may replace the coupling gears.
GB2198070A 1969-05-10 1970-05-07 Hydrostatic power systems Expired GB1312275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691924010 DE1924010C3 (en) 1969-05-10 Hydrostatic unit

Publications (1)

Publication Number Publication Date
GB1312275A true GB1312275A (en) 1973-04-04

Family

ID=5733882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2198070A Expired GB1312275A (en) 1969-05-10 1970-05-07 Hydrostatic power systems

Country Status (4)

Country Link
US (1) US3643433A (en)
CH (1) CH510216A (en)
FR (1) FR2046559A5 (en)
GB (1) GB1312275A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366671A (en) * 1980-03-14 1983-01-04 Clark Equipment Company Hydrostatic transmission
DE3167159D1 (en) * 1980-05-14 1984-12-20 Francois Couillard Wobble plate of an axial-type piston pump
FR2484555B1 (en) * 1980-05-14 1985-07-19 Couillard Francois PUMP DEVICE FOR LIQUID
DE3028774A1 (en) * 1980-07-29 1982-02-25 Linde Ag, 6200 Wiesbaden AXIAL PISTON MOTOR IN DRIVE FLANGE DESIGN WITH A BRAKE
DE3338747A1 (en) * 1983-10-25 1985-05-09 Mannesmann Rexroth GmbH, 8770 Lohr HYDROSTATIC MACHINE WITH A CONSTANT OR CHANGEABLE DISPLAY VOLUME
DE3611243C2 (en) * 1986-04-04 1993-09-30 Heidelberger Druckmasch Ag Device for supplying energy to a cylinder of a printing press
US4739618A (en) * 1986-10-21 1988-04-26 Shimadzu Corporation Hydrostatic transmission
US5406794A (en) * 1993-05-14 1995-04-18 Curtiss Wright Flight Systems Inc. Dual variable displacement over-center hydraulic motor power drive unit
US5974797A (en) * 1996-10-08 1999-11-02 Tokimec Inc. Hydraulic actuator package
FI104915B (en) * 1997-09-23 2000-04-28 Raunisto Airi Hydraulic pump
JP3623101B2 (en) * 1998-03-04 2005-02-23 カヤバ工業株式会社 Hydrostatic transmission system
US6672843B1 (en) 2002-04-08 2004-01-06 Hydro-Gear Limited Partnership Dual pump apparatus comprising dual drive shafts and auxiliary pump
AUPS300902A0 (en) * 2002-06-18 2002-07-11 Permo-Drive Research And Development Pty Ltd Decoupling mechanism for hydraulic pump/motor assembly
GB0221165D0 (en) 2002-09-12 2002-10-23 Artemis Intelligent Power Ltd Fluid-working machine and operating method
ITPD20030013U1 (en) * 2003-02-25 2004-08-26 Lavorwash Spa SWING PLATE FOR AXIAL PISTON PUMP
US6953327B1 (en) 2003-03-11 2005-10-11 Hydro-Gear Limited Partnership Dual pump
US6971233B1 (en) 2003-05-12 2005-12-06 Hydro-Gear Limited Partnership Pump apparatus
US7082760B2 (en) * 2004-06-29 2006-08-01 Zf Friedrichshafen Ag Drive system for mobile vehicles
US7347047B1 (en) 2004-11-12 2008-03-25 Hydro-Gear Limited Partnership Pump assembly
US7377105B1 (en) 2004-11-12 2008-05-27 Hydro-Gear Limited Partnership Dual pump assembly
EP1828633B1 (en) * 2004-12-01 2015-08-12 Concentric Rockford, Inc Hydraulic power supply system
JP2006322360A (en) * 2005-05-18 2006-11-30 Kanzaki Kokyukoki Mfg Co Ltd Hydraulic pump unit
US9677653B1 (en) * 2014-10-23 2017-06-13 Hydro-Gear Limited Partnership Modular drive unit
US10550935B2 (en) * 2016-08-19 2020-02-04 Eaton Intelligent Power Limited Hydraulic mechanical transmission

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE818141C (en) * 1949-06-26 1951-10-22 Heinrich Dr Ebert Infinitely adjustable fluid piston reduction or reduction gear, especially for machine tools

Also Published As

Publication number Publication date
DE1924010A1 (en) 1970-11-19
FR2046559A5 (en) 1971-03-05
DE1924010B2 (en) 1976-09-09
CH510216A (en) 1971-07-15
US3643433A (en) 1972-02-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee