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JPS5741486A - Input torque controller for variable displacement pump - Google Patents

Input torque controller for variable displacement pump

Info

Publication number
JPS5741486A
JPS5741486A JP55116218A JP11621880A JPS5741486A JP S5741486 A JPS5741486 A JP S5741486A JP 55116218 A JP55116218 A JP 55116218A JP 11621880 A JP11621880 A JP 11621880A JP S5741486 A JPS5741486 A JP S5741486A
Authority
JP
Japan
Prior art keywords
region
input torque
engine
load
pilot pump
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
JP55116218A
Other languages
Japanese (ja)
Other versions
JPH0135194B2 (en
Inventor
Tadashi Nishimura
Hiroshi Fujikawa
Tatsushi Hatano
Sakae Sugiuchi
Shinichi Iwata
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.)
NIPPON JIYOSETSUKI SEISAKUSHO KK
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
NIPPON JIYOSETSUKI SEISAKUSHO KK
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 NIPPON JIYOSETSUKI SEISAKUSHO KK, Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical NIPPON JIYOSETSUKI SEISAKUSHO KK
Priority to JP55116218A priority Critical patent/JPS5741486A/en
Publication of JPS5741486A publication Critical patent/JPS5741486A/en
Publication of JPH0135194B2 publication Critical patent/JPH0135194B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Motor Power Transmission Devices (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To increase effective horsepower in the region of a small work line load and improve work efficiency in the above described device used for snow removing machine or the like, by arranging two relief valves in parallel connection in the downstream of a pilot pump driven by an engine.
CONSTITUTION: A pilot pump 7 is connected to a power transmission mechanism 2 of an engine 1, then a relief valve 8 and low pressure relief valve 9 with an opening degree limit are interposed in parallel connection in a pipe line 10 connecting the pilot pump 7 to a tank 11, and liquid pressure in the upstream side of these valves is guided to an input torque controlling mechanism part 25. In this way, since an increase rate of liquid pressure guided to the input torque controlling mechanism part 25 for speed of the engine is lower for a region of larger work load while higher for a region of smaller work load, running line horsepower can be fully increased in the region of the smaller work line load, thus work efficiency can be improved.
COPYRIGHT: (C)1982,JPO&Japio
JP55116218A 1980-08-22 1980-08-22 Input torque controller for variable displacement pump Granted JPS5741486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116218A JPS5741486A (en) 1980-08-22 1980-08-22 Input torque controller for variable displacement pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116218A JPS5741486A (en) 1980-08-22 1980-08-22 Input torque controller for variable displacement pump

Publications (2)

Publication Number Publication Date
JPS5741486A true JPS5741486A (en) 1982-03-08
JPH0135194B2 JPH0135194B2 (en) 1989-07-24

Family

ID=14681751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116218A Granted JPS5741486A (en) 1980-08-22 1980-08-22 Input torque controller for variable displacement pump

Country Status (1)

Country Link
JP (1) JPS5741486A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199977A (en) * 1986-02-27 1987-09-03 Hitachi Constr Mach Co Ltd Regulator for variable displacement type hydraulic pump
US5098358A (en) * 1987-10-16 1992-03-24 Matex Co., Ltd. Unified asymmetric planetary gear assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199977A (en) * 1986-02-27 1987-09-03 Hitachi Constr Mach Co Ltd Regulator for variable displacement type hydraulic pump
US5098358A (en) * 1987-10-16 1992-03-24 Matex Co., Ltd. Unified asymmetric planetary gear assembly

Also Published As

Publication number Publication date
JPH0135194B2 (en) 1989-07-24

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