GB1244835A - Improvements relating to variable speed hydraulic motors - Google Patents

Improvements relating to variable speed hydraulic motors

Info

Publication number
GB1244835A
GB1244835A GB48494/67A GB4849467A GB1244835A GB 1244835 A GB1244835 A GB 1244835A GB 48494/67 A GB48494/67 A GB 48494/67A GB 4849467 A GB4849467 A GB 4849467A GB 1244835 A GB1244835 A GB 1244835A
Authority
GB
United Kingdom
Prior art keywords
hydraulic
pistons
cam member
motor
cylinders
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
GB48494/67A
Inventor
George Ife
John Peter Jackson
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB48494/67A priority Critical patent/GB1244835A/en
Priority to FR1586338D priority patent/FR1586338A/fr
Priority to DE19681804297 priority patent/DE1804297A1/en
Priority to US769558A priority patent/US3511135A/en
Publication of GB1244835A publication Critical patent/GB1244835A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
    • F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
    • F03C1/2407—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders having cylinders in star or fan arrangement, the connection of the pistons with an actuated element being at the outer ends of the cylinders
    • F03C1/2423—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders having cylinders in star or fan arrangement, the connection of the pistons with an actuated element being at the outer ends of the cylinders with two or more series radial piston-cylinder units
    • 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
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0431—Draining of the engine housing; arrangements dealing with leakage fluid
    • 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
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0447—Controlling
    • F03C1/0457—Controlling by changing the effective piston stroke
    • F03C1/046—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element
    • 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
    • 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
    • F03C1/0644—Component parts
    • F03C1/0655—Valve means

Landscapes

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

Abstract

1,244,835. Hydraulic reciprocating motors. ENGLISH ELECTRIC CO. Ltd. Oct.22, 1968 [Oct.25, 1967], No.48494/67. Heading F1A. In a variable speed hydraulic motor comprising a rotary cylinder block 2, in which axially movable pistons 26 are reciprocated in cylinders 28 by the action of a stationary swash-plate 32, each of the cylinders 28 communicates with a radial cylinder in which a radial piston 56 is reciprocated by an eccentric, and the displacement of the motor is varied by altering either the degree of eccentricity, or the inclination of the swash-plate. Each radial piston 56 is pivoted on a slipper 60, formed by ring parts 64, 66, the slipper being adjacent a rotating inner race (68) Fig.2 (not shown), which is separated from a stationary outer race (70) by rollers (72). The outer race is housed in a cam member (74) which is octagonal shaped externally, and which acts as a guide to ensure that the races move in only one direction. At maximum speed the cam member is set at zero eccentricity by locating spindles 78, so that the motor displacement is provided solely by the axial pistons; to reduce the displacement the member is moved so that each radial piston moves radially outward as its corresponding axial piston moves axially outward. The cam member 74 may be adjusted by hydraulic means, such as hydraulic pistons (80), and the circuit controlling these pistons may include means for over-riding the control signal if the motor fails to start at a high speed setting. The bearing surfaces of the slippers 60 may be arranged as hydrostatic bearings, in which case the slippers may bear directly on the inner surface of the cam member 74. Hydraulic fluid is introduced into and discharged from the cylinders 28 via inlet and outlet ports 44, channels 46, a stationary valve plate 42, and arcuate ports 52 and 54 in the valve plate.
GB48494/67A 1967-10-25 1967-10-25 Improvements relating to variable speed hydraulic motors Expired GB1244835A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB48494/67A GB1244835A (en) 1967-10-25 1967-10-25 Improvements relating to variable speed hydraulic motors
FR1586338D FR1586338A (en) 1967-10-25 1968-10-16
DE19681804297 DE1804297A1 (en) 1967-10-25 1968-10-21 Hydraulic motor with variable output speed
US769558A US3511135A (en) 1967-10-25 1968-10-22 Variable speed hydraulic motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48494/67A GB1244835A (en) 1967-10-25 1967-10-25 Improvements relating to variable speed hydraulic motors

Publications (1)

Publication Number Publication Date
GB1244835A true GB1244835A (en) 1971-09-02

Family

ID=10448827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48494/67A Expired GB1244835A (en) 1967-10-25 1967-10-25 Improvements relating to variable speed hydraulic motors

Country Status (4)

Country Link
US (1) US3511135A (en)
DE (1) DE1804297A1 (en)
FR (1) FR1586338A (en)
GB (1) GB1244835A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163493A (en) * 1984-08-24 1986-02-26 Teves Gmbh Alfred Radial piston device
US4635534A (en) * 1974-11-29 1987-01-13 Karl Eickmann Pistons, piston shoes and rotors in pumps and motors

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652215A (en) * 1984-04-12 1987-03-24 Nippondenso Co., Ltd. Variable capacity radial piston pump
US4627793A (en) * 1984-06-13 1986-12-09 Nippondenso Co., Ltd. Motor-driven radial plunger pump
US5081908A (en) * 1991-05-08 1992-01-21 Teleflex Incorporated Hydraulic pump having floating spigot valve
DE19849334B4 (en) * 1998-10-26 2013-03-14 Linde Material Handling Gmbh Hydrostatic motor unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987781A (en) * 1929-03-20 1935-01-15 Maw Robert Hydraulic transmission system
US2678536A (en) * 1950-12-30 1954-05-18 Porter S Morgan Rotary pump and motor hydraulic transmission
US2989005A (en) * 1958-05-28 1961-06-20 Ibm Fluid apparatus
US3081708A (en) * 1960-08-10 1963-03-19 Sargent Engineering Corp Rotary motor or pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635534A (en) * 1974-11-29 1987-01-13 Karl Eickmann Pistons, piston shoes and rotors in pumps and motors
GB2163493A (en) * 1984-08-24 1986-02-26 Teves Gmbh Alfred Radial piston device

Also Published As

Publication number Publication date
US3511135A (en) 1970-05-12
FR1586338A (en) 1970-02-13
DE1804297A1 (en) 1969-05-29

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