GB1286405A - Radial hydraulic motors and pumps - Google Patents

Radial hydraulic motors and pumps

Info

Publication number
GB1286405A
GB1286405A GB34994/70D GB3499470D GB1286405A GB 1286405 A GB1286405 A GB 1286405A GB 34994/70 D GB34994/70 D GB 34994/70D GB 3499470 D GB3499470 D GB 3499470D GB 1286405 A GB1286405 A GB 1286405A
Authority
GB
United Kingdom
Prior art keywords
casing
block
recesses
pistons
flats
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
GB34994/70D
Inventor
Kenneth Raymond Dixon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1286405A publication Critical patent/GB1286405A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/062—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders cylinder block and actuating or actuated cam both rotating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0675—Controlling
    • F01B1/0686—Controlling by changing the effective piston stroke
    • F01B1/0689—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element

Abstract

1286405 Reciprocating pumps or motors K R DIXON 20 July 1970 [28 July 1969] 34994/70 Heading F1A A radial pump or motor comprises a relatively rotatable shaft 2 and cylinder block and casing assembly 4, 12, pistons 7 in the block slidably bearing against flats 42 in casing 12 which is eccentrically mounted relative to the block. The working pressure in the cylinders 6 is transmitted to flats 42 via bores 13 and recesses 14, the area of the recess being slightly less than the crosssectional area of the cylinder, so that radially outward hydraulic forces are borne directly by casing 12, apart from a slight force for maintaining the pistons in contact with flats 42. The radially inward forces due to the working areas of the cylinders are balanced by the forces due to the effective areas of recesses 37. Shaft 2 is formed as a pintle valve with distributor grooves 21, 22. Radial forces between casing 12 and shaft 2 are balanced by recesses 56, Fig. 4, in the casing sequentially registering with recesses 31, 32 corresponding but directionally opposed to valve ports 21, 22, and connected to the ports by passages 26, 27. Block 4 and casing 12 are coupled by followers 41 on block arms 39 engaging recesses 40 in casing 12. In alternative embodiments, Figs. 11 to 15 (not shown), the eccentricity of the casing relative to the block is adjustable hydraulically, and the cylinder block comprises a plurality of separate cylinders located by clamping ring assemblies. Sealing arrangements for the pistons, cylinder block and pintle are described, Figs. 5 to 10 (not shown).
GB34994/70D 1969-07-28 1970-07-20 Radial hydraulic motors and pumps Expired GB1286405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU5862769 1969-07-28

Publications (1)

Publication Number Publication Date
GB1286405A true GB1286405A (en) 1972-08-23

Family

ID=3743931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34994/70D Expired GB1286405A (en) 1969-07-28 1970-07-20 Radial hydraulic motors and pumps

Country Status (3)

Country Link
US (1) US3777624A (en)
DE (1) DE2037429A1 (en)
GB (1) GB1286405A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943826A (en) * 1970-12-30 1976-03-16 Shimadzu Seisakusho, Ltd. Hydraulic motors and pumps
US4018138A (en) * 1971-01-20 1977-04-19 Rollin Douglas Rumsey Radial piston pump/motors
US3935794A (en) * 1971-01-20 1976-02-03 Rollin Douglas Rumsey Radial piston pump/motors
GB1378546A (en) * 1972-06-20 1974-12-27 Hydrostatic Transmissions Ltd Fluid pressure machines
CH570542A5 (en) * 1973-10-15 1975-12-15 Sulzer Ag
CH571149A5 (en) * 1973-10-23 1975-12-31 Sulzer Ag
CH588011A5 (en) * 1973-11-02 1977-05-31 Sulzer Ag
DE2418164C3 (en) * 1974-04-13 1978-12-14 Voith Getriebe Kg, 7920 Heidenheim Radial piston machine with internal flow
FR2281509A1 (en) * 1974-08-08 1976-03-05 Ferodo Sa HYDRAULIC ROTATING MACHINE
JPS584194B2 (en) * 1974-11-14 1983-01-25 サンワセイキ カブシキガイシヤ Radial gutter your pump motor
US4144799A (en) * 1976-06-25 1979-03-20 Ponchaux Jean Luc Fluid machine
US4074614A (en) * 1976-10-07 1978-02-21 Caterpillar Tractor Co. Valving for dual radial piston motor
US4165677A (en) * 1978-02-27 1979-08-28 American Hydraulic Propulsion Systems, Inc. Radial piston hydraulic pump or motor with stabilized pintle shaft
US4503754A (en) * 1984-06-01 1985-03-12 Irwin Everett F Rotary cylinder engines with pistons having balanced loads
US4864916A (en) * 1986-09-15 1989-09-12 Swinney Louis E Radial pump/motor
US4777866A (en) * 1986-09-30 1988-10-18 Nanjing Automobile Research Institute Variable displacement radial piston pumps or motors
ITBO20110577A1 (en) * 2011-10-07 2013-04-08 Ecotec Ind S R L HYDRAULIC RADIAL PISTON MOTOR

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321313A (en) * 1928-10-24 1929-11-07 Ralph John Smith Improvements in hydraulic pumps & motors
US2372523A (en) * 1939-05-12 1945-03-27 Alfred C Sinclair Pump
US2347663A (en) * 1939-11-02 1944-05-02 Orson A Carnahan Hydraulically balanced bearing
US2393557A (en) * 1941-10-03 1946-01-22 Acrotorque Co Vehicle drive control mechanism
GB764698A (en) * 1954-02-25 1957-01-02 Ruben Hadekel Improvements in or relating to piston pumps or motors
US2827859A (en) * 1954-07-01 1958-03-25 Bliss E W Co Hydraulic pump
US3034451A (en) * 1959-04-23 1962-05-15 United Aircraft Corp Pintle port construction for pumps
US3082696A (en) * 1959-09-30 1963-03-26 North American Aviation Inc Hydraulic pump or motor
US3199460A (en) * 1962-01-11 1965-08-10 Stewart Warner Corp Hydraulic pump or motor
US3170297A (en) * 1963-09-30 1965-02-23 Bendix Corp Hydrostatic thrust bearing device
US3570372A (en) * 1968-11-29 1971-03-16 John F Campbell Radial pump with hydrostatic load balance

Also Published As

Publication number Publication date
DE2037429A1 (en) 1971-02-11
US3777624A (en) 1973-12-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees