JPS5469807A - Radial piston type multi stroke hydraulic pump-motor - Google Patents

Radial piston type multi stroke hydraulic pump-motor

Info

Publication number
JPS5469807A
JPS5469807A JP13567577A JP13567577A JPS5469807A JP S5469807 A JPS5469807 A JP S5469807A JP 13567577 A JP13567577 A JP 13567577A JP 13567577 A JP13567577 A JP 13567577A JP S5469807 A JPS5469807 A JP S5469807A
Authority
JP
Japan
Prior art keywords
oil
rotor
valve body
oil pressure
sliding surface
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.)
Pending
Application number
JP13567577A
Other languages
Japanese (ja)
Inventor
Hitoshi Sato
Eiji Yonetani
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP13567577A priority Critical patent/JPS5469807A/en
Publication of JPS5469807A publication Critical patent/JPS5469807A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To reduce the force pressing a valve body to a rotor by providing a switching valve which balances the force in axial direction generated by the pressurized oil through a rotating shaft.
CONSTITUTION: The pressurized oil introduced through an oil passage port 22 enters an oil chamber 12 of a cylinder 10 in a rotor 8 via an oil pressure chamber 31 and oil passages 20 and 13 whereby a rotor 8 is rotated to perform as a hydraulic motor while the pressurized oil in the oil pressure chamger 31 is supplied to a circular oil pressure chamber 32 via oil passages 35A and 35B to lubricate a sliding surface 39 between a valve body 27 and a disc 29. The oil pressure chamber is so sized that the oil pressure therein presses the valve bodies 26 and 27 to the rotor 8 and the disc respectively against the seperating force generated in the sliding surface 25 between the valve body 26 and the rotor 8 and the sliding surface 39 between the valve body 27 and the disc 29.
COPYRIGHT: (C)1979,JPO&Japio
JP13567577A 1977-11-14 1977-11-14 Radial piston type multi stroke hydraulic pump-motor Pending JPS5469807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13567577A JPS5469807A (en) 1977-11-14 1977-11-14 Radial piston type multi stroke hydraulic pump-motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13567577A JPS5469807A (en) 1977-11-14 1977-11-14 Radial piston type multi stroke hydraulic pump-motor

Publications (1)

Publication Number Publication Date
JPS5469807A true JPS5469807A (en) 1979-06-05

Family

ID=15157291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13567577A Pending JPS5469807A (en) 1977-11-14 1977-11-14 Radial piston type multi stroke hydraulic pump-motor

Country Status (1)

Country Link
JP (1) JPS5469807A (en)

Similar Documents

Publication Publication Date Title
GB1335372A (en) Distributor for hydraulic motors
GB1385702A (en) Hydraulic motors and the like
GB890440A (en) Fluid-pressure-operated actuator
GB1337943A (en) Screw press
GB1333696A (en) Hydraulic brake actuator for a brake mechanism such as a disc brake
JPS54108906A (en) Fluid pressure rotary machine
JPS5469807A (en) Radial piston type multi stroke hydraulic pump-motor
GB1371256A (en) Slide shoe for a hydraulic reciprocating piston machine
US3906841A (en) Axial-piston machine
FR2245226A5 (en) Hydraulic workpiece clamp for e.g. a lathe - hydraulic press. moves set of jaws radially inwardly
FR2426801A1 (en) Radial piston hydraulic motor for auxiliary trailer drive - has valve plate disengaged from cylinder block when idling
ES8200040A1 (en) Improvements relating to hydraulic presses
GB1320026A (en) Rotary fluid-pressure machine such as a pump or motor
GB992230A (en) Improvements in pressure fluid reciprocating piston machines
GB1252001A (en)
US2981201A (en) Piston machine
GB1242381A (en) Improvements in multi-cylinder hydraulic motors
AU2956900A (en) Device for a tool spindle
GB1319406A (en) Axial piston machines
FR2386699A1 (en) Hydraulic motor with axially reciprocating pistons - has pressure admitted to recesses in base of piston to reduce friction
GB1506188A (en) Radial piston pump or motor
GB1465444A (en) Multiple pump
JPS57113976A (en) Hydraulic motor
JPS5769119A (en) Power transmission device
JPS5638580A (en) Balancing device for load of slanted-axis-type pump of variable capacity type