JPS57146969A - Temperature-sensitive relief valve - Google Patents

Temperature-sensitive relief valve

Info

Publication number
JPS57146969A
JPS57146969A JP56030664A JP3066481A JPS57146969A JP S57146969 A JPS57146969 A JP S57146969A JP 56030664 A JP56030664 A JP 56030664A JP 3066481 A JP3066481 A JP 3066481A JP S57146969 A JPS57146969 A JP S57146969A
Authority
JP
Japan
Prior art keywords
temperature
oil
pressure
valve
liquid
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
JP56030664A
Other languages
Japanese (ja)
Inventor
Hisashi Kodama
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 JP56030664A priority Critical patent/JPS57146969A/en
Publication of JPS57146969A publication Critical patent/JPS57146969A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To keep hydraulic pressure constant by changing the position of a valve spring by liquid, the volume of which is changed depending upon the temperature. CONSTITUTION:When the temperature rises, liquid 7 is expanded, so that a valve spring 8 is pushed to the right through a retainer 14. When the valve 9 moves to the right to reduce the area of an escape hole 10 so as to lessen the quantity of oil which is about to escape in large quantities through the escape hole 10, because a temperature rise causes the density and viscosity of oil to lower, whereby pressure P is kept constant. When the temperature falls, since the volume of liquid 17 is contracted, the valve spring 8 and the valve 9 are pushed by oil pressure to move to the left, so that the opening area of the escape hole 10 is changed corresponding to the temperature, whereby pressure P of the oil is kept constant.
JP56030664A 1981-03-04 1981-03-04 Temperature-sensitive relief valve Pending JPS57146969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56030664A JPS57146969A (en) 1981-03-04 1981-03-04 Temperature-sensitive relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030664A JPS57146969A (en) 1981-03-04 1981-03-04 Temperature-sensitive relief valve

Publications (1)

Publication Number Publication Date
JPS57146969A true JPS57146969A (en) 1982-09-10

Family

ID=12310005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56030664A Pending JPS57146969A (en) 1981-03-04 1981-03-04 Temperature-sensitive relief valve

Country Status (1)

Country Link
JP (1) JPS57146969A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266176A (en) * 1989-04-04 1990-10-30 Natl Space Dev Agency Japan<Nasda> Relief valve for low temperature
JP2001012694A (en) * 1999-06-18 2001-01-16 Mas Fab Sulzer Burckhardt Ag Pressure limit vavle
DE10340115A1 (en) * 2003-08-30 2005-03-24 Bayerische Motoren Werke Ag Hydraulic valve has expandable element which in expanded state defines preloading of control spool, whereby expanded state of expandable element is dependent upon temperature of fluid at control connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266176A (en) * 1989-04-04 1990-10-30 Natl Space Dev Agency Japan<Nasda> Relief valve for low temperature
JP2001012694A (en) * 1999-06-18 2001-01-16 Mas Fab Sulzer Burckhardt Ag Pressure limit vavle
DE10340115A1 (en) * 2003-08-30 2005-03-24 Bayerische Motoren Werke Ag Hydraulic valve has expandable element which in expanded state defines preloading of control spool, whereby expanded state of expandable element is dependent upon temperature of fluid at control connection

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