JPS5765465A - Relief valve - Google Patents

Relief valve

Info

Publication number
JPS5765465A
JPS5765465A JP13840580A JP13840580A JPS5765465A JP S5765465 A JPS5765465 A JP S5765465A JP 13840580 A JP13840580 A JP 13840580A JP 13840580 A JP13840580 A JP 13840580A JP S5765465 A JPS5765465 A JP S5765465A
Authority
JP
Japan
Prior art keywords
pressure
relief
diameter
poppet
constitution
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
JP13840580A
Other languages
Japanese (ja)
Inventor
Shunichiro Shimazaki
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.)
KYB Corp
Original Assignee
Kayaba Industry 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 Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP13840580A priority Critical patent/JPS5765465A/en
Publication of JPS5765465A publication Critical patent/JPS5765465A/en
Pending legal-status Critical Current

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  • Safety Valves (AREA)

Abstract

PURPOSE: To obtain relief setting pressure in high accuracy in a relief falve operated at pressure acting on a difference of pressure receiving area between a pressure port side and back pressure chamber side, by constitution to cancel relief port pressure acting on a poppet.
CONSTITUTION: A poppet guide 7 of a relief poppet 4 is formed in a diameter D2 equal to a diameter D1 of a valve seat 9, and a small contour part 13 is formed by providing a stepped part 12 at an end side of the poppet guide 7 protruding to a back pressure chamber 5, then a difference of pressure receiving area is provided between a diameter D3 of the small contour part 13 applied with back pressure and the diameter D1 of the valve seat 9. A sealing member 3 penetrated with the small contour part 13 is oil-tightly fitted to a valve housing 3 to form a pressure chamber 15 communicated to a tank through a through hole 16 and passage 17. In this constitution, relief setting pressure is not affected by pressure P2 of a relief port 2 varied by a flow rate of surplus oil.
COPYRIGHT: (C)1982,JPO&Japio
JP13840580A 1980-10-03 1980-10-03 Relief valve Pending JPS5765465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13840580A JPS5765465A (en) 1980-10-03 1980-10-03 Relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13840580A JPS5765465A (en) 1980-10-03 1980-10-03 Relief valve

Publications (1)

Publication Number Publication Date
JPS5765465A true JPS5765465A (en) 1982-04-21

Family

ID=15221183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13840580A Pending JPS5765465A (en) 1980-10-03 1980-10-03 Relief valve

Country Status (1)

Country Link
JP (1) JPS5765465A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6173971U (en) * 1984-10-22 1986-05-19
CN1309981C (en) * 2003-06-23 2007-04-11 太平洋工业株式会社 Release valve
JP2021046909A (en) * 2019-09-19 2021-03-25 ナブテスコ株式会社 Valve and construction machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718867A (en) * 1980-07-08 1982-01-30 Nissan Motor Co Ltd Pressure control valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718867A (en) * 1980-07-08 1982-01-30 Nissan Motor Co Ltd Pressure control valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6173971U (en) * 1984-10-22 1986-05-19
CN1309981C (en) * 2003-06-23 2007-04-11 太平洋工业株式会社 Release valve
JP2021046909A (en) * 2019-09-19 2021-03-25 ナブテスコ株式会社 Valve and construction machine

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