JPS56147958A - Regulator for variable displacement pump - Google Patents

Regulator for variable displacement pump

Info

Publication number
JPS56147958A
JPS56147958A JP5214680A JP5214680A JPS56147958A JP S56147958 A JPS56147958 A JP S56147958A JP 5214680 A JP5214680 A JP 5214680A JP 5214680 A JP5214680 A JP 5214680A JP S56147958 A JPS56147958 A JP S56147958A
Authority
JP
Japan
Prior art keywords
regulator
communicated
spools
liquid chamber
grooves
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
JP5214680A
Other languages
Japanese (ja)
Other versions
JPH0233906B2 (en
Inventor
Naoharu Nakagaki
Makoto Sonoda
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.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki 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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP5214680A priority Critical patent/JPS56147958A/en
Publication of JPS56147958A publication Critical patent/JPS56147958A/en
Publication of JPH0233906B2 publication Critical patent/JPH0233906B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE: A regulator, capable of effectively braking an inertia load during in driving operation only by returning a control lever of the operating valve for controlling circuit pressure to a neutral position further capable of optionally adjusting the strength of braking power.
CONSTITUTION: A regulator 2 is constituted such that spools 21 are back and forth movably inserted into a valve main body 20 in an oil hydraulic operation change- over valve 3 and held by neutral resetting springs 22 arranged at both end parts. Further to both ends of the spools 21, compensation pistons 24 in small diameter are adapted respectively through pistons 23. The before described spools 21 are formed in such a manner that a central grooved part 28 is positioned to a liquid chamber 27 communicated with a servo pump 18 at their neutral position, then to both sides of the grooved part 28 are provided lands 29, 30 positioned to annular grooves 31, 32 communicated to liquid chambers 37, 38 in a servocylinder 4. V- grooves 39 and grooved parts 40 are formed in the lands 29, 30 while the grooves 31, 32 are communicated to the liquid chamber 27 and a liquid chamber 41 at the side of a tank.
COPYRIGHT: (C)1981,JPO&Japio
JP5214680A 1980-04-18 1980-04-18 Regulator for variable displacement pump Granted JPS56147958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5214680A JPS56147958A (en) 1980-04-18 1980-04-18 Regulator for variable displacement pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5214680A JPS56147958A (en) 1980-04-18 1980-04-18 Regulator for variable displacement pump

Publications (2)

Publication Number Publication Date
JPS56147958A true JPS56147958A (en) 1981-11-17
JPH0233906B2 JPH0233906B2 (en) 1990-07-31

Family

ID=12906729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5214680A Granted JPS56147958A (en) 1980-04-18 1980-04-18 Regulator for variable displacement pump

Country Status (1)

Country Link
JP (1) JPS56147958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63214557A (en) * 1987-02-28 1988-09-07 Shimadzu Corp Hydraulic transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937203A (en) * 1972-08-14 1974-04-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937203A (en) * 1972-08-14 1974-04-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63214557A (en) * 1987-02-28 1988-09-07 Shimadzu Corp Hydraulic transmission

Also Published As

Publication number Publication date
JPH0233906B2 (en) 1990-07-31

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