JPS5765466A - Relief valve for oil pump - Google Patents
Relief valve for oil pumpInfo
- 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
Links
Landscapes
- 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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6175501U (en) * | 1984-10-25 | 1986-05-21 |
-
1980
- 1980-10-09 JP JP14140180A patent/JPS5765466A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6175501U (en) * | 1984-10-25 | 1986-05-21 |
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