JPS5783677A - Variable capacity type hydraulic apparatus - Google Patents

Variable capacity type hydraulic apparatus

Info

Publication number
JPS5783677A
JPS5783677A JP55159810A JP15981080A JPS5783677A JP S5783677 A JPS5783677 A JP S5783677A JP 55159810 A JP55159810 A JP 55159810A JP 15981080 A JP15981080 A JP 15981080A JP S5783677 A JPS5783677 A JP S5783677A
Authority
JP
Japan
Prior art keywords
pressure
control
plunger
reduced
reduced pressure
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
JP55159810A
Other languages
Japanese (ja)
Inventor
Takeshi Horiuchi
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Daikin Kogyo 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 Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Priority to JP55159810A priority Critical patent/JPS5783677A/en
Publication of JPS5783677A publication Critical patent/JPS5783677A/en
Pending legal-status Critical Current

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  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To enable a long-run control and a constant power control by applying reduced pressure of high pressure side pressure of a hydraulic apparatus upon a control cylinder which adjudts displacement capacity of a swash plate, etc.
CONSTITUTION: A part of deliverd fluid which flows through a delivery passage 17 is taken in a connecting passage 20. After its pressure is reduced to a fixed pressure by a proportional pressure reducing valve 60, it is applied upon a back chamber 14 of a control plunger 14 via a control passage 20a. The control plunger 14 does not operate even when reduced pressure is applied upon the control plunger 14 and a swash plate 6 is kept at the maximum tilt angle. When reduced pressure exceeds a fixed pressure it overcomes pushing pressure of a bias plunger 13 and the control plunger 14 moves. Control pressure is obtained according to the characteristics of reducing valve 60. By increasing its reduced pressure ratio, a control pressure with less initial rise in proportion to the rise of high pressure side pressure and a long-run control conducted.
COPYRIGHT: (C)1982,JPO&Japio
JP55159810A 1980-11-12 1980-11-12 Variable capacity type hydraulic apparatus Pending JPS5783677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159810A JPS5783677A (en) 1980-11-12 1980-11-12 Variable capacity type hydraulic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159810A JPS5783677A (en) 1980-11-12 1980-11-12 Variable capacity type hydraulic apparatus

Publications (1)

Publication Number Publication Date
JPS5783677A true JPS5783677A (en) 1982-05-25

Family

ID=15701743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159810A Pending JPS5783677A (en) 1980-11-12 1980-11-12 Variable capacity type hydraulic apparatus

Country Status (1)

Country Link
JP (1) JPS5783677A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63306287A (en) * 1987-06-04 1988-12-14 Kayaba Ind Co Ltd Horsepower control device for piston pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50102904A (en) * 1974-01-16 1975-08-14
JPS50152303A (en) * 1974-05-28 1975-12-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50102904A (en) * 1974-01-16 1975-08-14
JPS50152303A (en) * 1974-05-28 1975-12-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63306287A (en) * 1987-06-04 1988-12-14 Kayaba Ind Co Ltd Horsepower control device for piston pump

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