JPS5765466A - Relief valve for oil pump - Google Patents

Relief valve for oil pump

Info

Publication number
JPS5765466A
JPS5765466A JP14140180A JP14140180A JPS5765466A JP S5765466 A JPS5765466 A JP S5765466A JP 14140180 A JP14140180 A JP 14140180A JP 14140180 A JP14140180 A JP 14140180A JP S5765466 A JPS5765466 A JP S5765466A
Authority
JP
Japan
Prior art keywords
hole
suction
oil
orifice
back 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
JP14140180A
Other languages
Japanese (ja)
Inventor
Takanobu Hori
Ichiro Yoshikura
Shinkichi Ozawa
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP14140180A priority Critical patent/JPS5765466A/en
Publication of JPS5765466A publication Critical patent/JPS5765466A/en
Pending legal-status Critical Current

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  • Safety Valves (AREA)

Abstract

PURPOSE: To prevent a chattering phenomenon of a valve in which a spring chamber equipped with a relief spring is communicated to a pump suction side through a back pressure hole, by providing an orifice, communicating a pressure side with the spring chamber, in a valve piston.
CONSTITUTION: A back pressure hole 3a, communicated to a suction hole 1b of a pump body 1, through hole 3b in the direction of delivery and orifice 3c are provided in a valve piston 3 arranged in a pump body 1. When the valve piston 3 moves leftward, oil in a valve is discharged from the back pressure hole 3a to a side of the suction hole 1b to perform damping action, simultaneously pressure oil flows from the through hole 3b to the suction hole 1b. Further, when the valve piston 3 moves rightward, the back pressure hole 3a, being in small size, can not generate sufficient oil suction, and oil at the delivery side is sucked from the orifice 3c, then rapid unbalance of pressure at both sids of suction and delivery is controlled by viscosity of oil passing the orifice 3c.
COPYRIGHT: (C)1982,JPO&Japio
JP14140180A 1980-10-09 1980-10-09 Relief valve for oil pump Pending JPS5765466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14140180A JPS5765466A (en) 1980-10-09 1980-10-09 Relief valve for oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14140180A JPS5765466A (en) 1980-10-09 1980-10-09 Relief valve for oil pump

Publications (1)

Publication Number Publication Date
JPS5765466A true JPS5765466A (en) 1982-04-21

Family

ID=15291139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14140180A Pending JPS5765466A (en) 1980-10-09 1980-10-09 Relief valve for oil pump

Country Status (1)

Country Link
JP (1) JPS5765466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175501U (en) * 1984-10-25 1986-05-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175501U (en) * 1984-10-25 1986-05-21

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