JPS57119181A - Piston-sliding device in swash plate type axial piston pump or motor - Google Patents

Piston-sliding device in swash plate type axial piston pump or motor

Info

Publication number
JPS57119181A
JPS57119181A JP56003128A JP312881A JPS57119181A JP S57119181 A JPS57119181 A JP S57119181A JP 56003128 A JP56003128 A JP 56003128A JP 312881 A JP312881 A JP 312881A JP S57119181 A JPS57119181 A JP S57119181A
Authority
JP
Japan
Prior art keywords
pressure
cylinder
piston
swash plate
chamber
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.)
Granted
Application number
JP56003128A
Other languages
Japanese (ja)
Other versions
JPS6350552B2 (en
Inventor
Tatsunori Ogawara
Mataji Tateishi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56003128A priority Critical patent/JPS57119181A/en
Publication of JPS57119181A publication Critical patent/JPS57119181A/en
Publication of JPS6350552B2 publication Critical patent/JPS6350552B2/ja
Granted 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
    • F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate

Landscapes

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

Abstract

PURPOSE:To equalize the pressure in a cylinder and the pressure in a static-pressure chamber and contrive to operate a piston smoothly by providing a device for supplying a high-pressure fluid into the static-pressure chamber of a slipper beginning to be communicated with a high-pressure port, through supply passages each of which has an end opened to the side of a sliding surface of a swash plate. CONSTITUTION:The interior of the cylinder 10 and the interior of the static-pressure chamber 24 are communicated to each other through the supply passages 25, 26 for the high-pressure fluid which are opened at one end to the side of the sliding surface 22 of the swash plate 21, so that the pressures in both the cylinder 10 and the chamber 24 are kept equal to the pressure on the high-pressure port 13 side. This condition is maintained also at the parts of the succeeding high-pressure port 13 and a low-pressure port 12, and substantially the same action is obtained when the cylinder on the subsequent stage comes to the cylinder position shown. Therefore, when the cylinder 10 begins to be communicated with the high-pressure port 13, the pressure in the cylinder 10 and the pressure in the chamber 24 are kept substantially equal. Accordingly, a piston slipper 18 is slidden smoothly without being moved to the cylinder 10 side or the swash plate 21 side, and the piston 16 is reciprocated smoothly.
JP56003128A 1981-01-14 1981-01-14 Piston-sliding device in swash plate type axial piston pump or motor Granted JPS57119181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003128A JPS57119181A (en) 1981-01-14 1981-01-14 Piston-sliding device in swash plate type axial piston pump or motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003128A JPS57119181A (en) 1981-01-14 1981-01-14 Piston-sliding device in swash plate type axial piston pump or motor

Publications (2)

Publication Number Publication Date
JPS57119181A true JPS57119181A (en) 1982-07-24
JPS6350552B2 JPS6350552B2 (en) 1988-10-11

Family

ID=11548716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003128A Granted JPS57119181A (en) 1981-01-14 1981-01-14 Piston-sliding device in swash plate type axial piston pump or motor

Country Status (1)

Country Link
JP (1) JPS57119181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226772U (en) * 1988-08-05 1990-02-21
JPH0239579U (en) * 1988-09-07 1990-03-16

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226772U (en) * 1988-08-05 1990-02-21
JPH0239579U (en) * 1988-09-07 1990-03-16
JPH0640939Y2 (en) * 1988-09-07 1994-10-26 コータキ株式会社 Hydraulic piston pump

Also Published As

Publication number Publication date
JPS6350552B2 (en) 1988-10-11

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