JPS5718868A - Relief valve installed on multiple pump oil paths - Google Patents

Relief valve installed on multiple pump oil paths

Info

Publication number
JPS5718868A
JPS5718868A JP9190080A JP9190080A JPS5718868A JP S5718868 A JPS5718868 A JP S5718868A JP 9190080 A JP9190080 A JP 9190080A JP 9190080 A JP9190080 A JP 9190080A JP S5718868 A JPS5718868 A JP S5718868A
Authority
JP
Japan
Prior art keywords
spring
multiple pump
pressure
relief pressure
relief valve
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
JP9190080A
Other languages
Japanese (ja)
Inventor
Takao Iwasaki
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.)
Tadano Ltd
Original Assignee
Tadano Iron Works 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 Tadano Iron Works Co Ltd filed Critical Tadano Iron Works Co Ltd
Priority to JP9190080A priority Critical patent/JPS5718868A/en
Publication of JPS5718868A publication Critical patent/JPS5718868A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To put the power from the driving source to ample practical use in such a way that a relief pressure setting spring is moved in its noncompressed direction in proportion to the rise in the pressure of a discharge oil path of a multiple pump.
CONSTITUTION: When a multiple pump 3 is in nonload condition, a relief pressure setting spring 7 is compressed to its maximum by a spring 14, the relief pressure is set to be high pressure, and it can be put to ample practical use. When the multiple pump 3 becomes load condition, and a discharge oil path 5 begins to rise the pressure, at the same time as a piston 10 moves upward against the spring 14, a spring seat 9 moves a spring 7 in its noncompressed direction. Thus, the relief pressure is reduced, the spring 14 is closely brought into contact to stop the movement of the piston 10.
COPYRIGHT: (C)1982,JPO&Japio
JP9190080A 1980-07-04 1980-07-04 Relief valve installed on multiple pump oil paths Pending JPS5718868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9190080A JPS5718868A (en) 1980-07-04 1980-07-04 Relief valve installed on multiple pump oil paths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9190080A JPS5718868A (en) 1980-07-04 1980-07-04 Relief valve installed on multiple pump oil paths

Publications (1)

Publication Number Publication Date
JPS5718868A true JPS5718868A (en) 1982-01-30

Family

ID=14039436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9190080A Pending JPS5718868A (en) 1980-07-04 1980-07-04 Relief valve installed on multiple pump oil paths

Country Status (1)

Country Link
JP (1) JPS5718868A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5765467A (en) * 1980-10-09 1982-04-21 Komatsu Ltd Relief valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5765467A (en) * 1980-10-09 1982-04-21 Komatsu Ltd Relief valve

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