JPS57168069A - Radial piston type pump motor - Google Patents

Radial piston type pump motor

Info

Publication number
JPS57168069A
JPS57168069A JP56052292A JP5229281A JPS57168069A JP S57168069 A JPS57168069 A JP S57168069A JP 56052292 A JP56052292 A JP 56052292A JP 5229281 A JP5229281 A JP 5229281A JP S57168069 A JPS57168069 A JP S57168069A
Authority
JP
Japan
Prior art keywords
pressure oil
pressure
rotor
suction
pump motor
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
JP56052292A
Other languages
Japanese (ja)
Inventor
Masami Ochiai
Takashi Kanai
Morio Oshina
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 JP56052292A priority Critical patent/JPS57168069A/en
Publication of JPS57168069A publication Critical patent/JPS57168069A/en
Pending 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE:To make suitable for the high pressure and high speed while to reduce the size, by fitting the tubular section formed on both end faces of a rotor in the projected supporting section of the casing and providing the pressure pocket at the fitting face section. CONSTITUTION:The low pressure oil sucked through a suction/exhaust path 14 through the reciprocal motion of a piston 9 will become the high pressure oil in the main cylinder chamber 8 and discharged to the suction/exhaust path 15. Here the high pressure oil is led into the pressure chamber 25B and the distribution valve boards 16A, 16B will press the end face of the rotor 6 thus to prevent the leakage of the pressure oil. The pressure oil in the pressure chamber 25B will flow into the pressure pockets 28B, 28A to be ballanced with the reaction of the force to be applied on the piston shoe 11.
JP56052292A 1981-04-07 1981-04-07 Radial piston type pump motor Pending JPS57168069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56052292A JPS57168069A (en) 1981-04-07 1981-04-07 Radial piston type pump motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56052292A JPS57168069A (en) 1981-04-07 1981-04-07 Radial piston type pump motor

Publications (1)

Publication Number Publication Date
JPS57168069A true JPS57168069A (en) 1982-10-16

Family

ID=12910722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56052292A Pending JPS57168069A (en) 1981-04-07 1981-04-07 Radial piston type pump motor

Country Status (1)

Country Link
JP (1) JPS57168069A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687312U (en) * 1993-05-31 1994-12-22 ダイヤ精工株式会社 Storage shelf
US5394787A (en) * 1992-06-19 1995-03-07 J. M. Voith Gmbh Muffled hydrostatic displacement machine with radial seal
WO2019215850A1 (en) * 2018-05-09 2019-11-14 株式会社ラピート Radial piston-type hydraulic actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394787A (en) * 1992-06-19 1995-03-07 J. M. Voith Gmbh Muffled hydrostatic displacement machine with radial seal
JPH0687312U (en) * 1993-05-31 1994-12-22 ダイヤ精工株式会社 Storage shelf
WO2019215850A1 (en) * 2018-05-09 2019-11-14 株式会社ラピート Radial piston-type hydraulic actuator
JPWO2019215850A1 (en) * 2018-05-09 2020-05-28 株式会社ラピート Radial piston type hydraulic actuator

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