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JPS575579A - Delivery pressure controller for pump - Google Patents

Delivery pressure controller for pump

Info

Publication number
JPS575579A
JPS575579A JP7813980A JP7813980A JPS575579A JP S575579 A JPS575579 A JP S575579A JP 7813980 A JP7813980 A JP 7813980A JP 7813980 A JP7813980 A JP 7813980A JP S575579 A JPS575579 A JP S575579A
Authority
JP
Japan
Prior art keywords
pressure
oil
clutch
oil pressure
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.)
Pending
Application number
JP7813980A
Other languages
Japanese (ja)
Inventor
Masahiro Taniguchi
Kazuhiko Tada
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP7813980A priority Critical patent/JPS575579A/en
Publication of JPS575579A publication Critical patent/JPS575579A/en
Pending legal-status Critical Current

Links

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  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To suppress a change of feed water pressure caused by stop operation in a constant speed pump system, by connecting an auxiliary hydraulic pressure oil supply means with prescribed oil pressure feedable on the way of pressure oil circuit in a variable speed pump system.
CONSTITUTION: There is provided a bypass circuit 14 simultaneously interposed a clutch oil pressure reducing valve 15, which are directly connected to a pressure oil circuit 10 at the side of an oil hydraulic pump 9, between a hydraulic oil pressure clutch 8 and oil pressure regulating valve 12 operating a feed water pump 1A at the side of a variable speed pump system. When a delivery amount of the feed water pump 1A becomes 0, clutch oil pressure fed to the oil pressure clutch 8 through the oil pressure corresponding to speed of the feed water pump 1A. However, pressure oil from the side of the pump 9 is reduced its pressure and fed by the clutch oil pressure reducing valve 15, thus oil pressure in the clutch 8 can be prevented from lowering.
COPYRIGHT: (C)1982,JPO&Japio
JP7813980A 1980-06-09 1980-06-09 Delivery pressure controller for pump Pending JPS575579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7813980A JPS575579A (en) 1980-06-09 1980-06-09 Delivery pressure controller for pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7813980A JPS575579A (en) 1980-06-09 1980-06-09 Delivery pressure controller for pump

Publications (1)

Publication Number Publication Date
JPS575579A true JPS575579A (en) 1982-01-12

Family

ID=13653542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7813980A Pending JPS575579A (en) 1980-06-09 1980-06-09 Delivery pressure controller for pump

Country Status (1)

Country Link
JP (1) JPS575579A (en)

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