Title:
RELIEF VALVE
Document Type and Number:
WIPO Patent Application WO/2013/105442
Kind Code:
A1
Abstract:
This relief valve is provided with: an adjusting piston capable of sliding through the action of pilot pressure; a pilot poppet in which the spring force of a setting spring adjusted by sliding the adjusting piston acts in the valve-closing direction; a spring chamber into which the spring which exercises the spring force resisting the pilot pressure is built; and an air release hole which is formed in the spring chamber and which opens the spring chamber to the outside.
Inventors:
YOSHIDA NOBUYOSHI (JP)
ONO JUNICHI (JP)
ONO JUNICHI (JP)
Application Number:
PCT/JP2012/083735
Publication Date:
July 18, 2013
Filing Date:
December 26, 2012
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
F16K17/10
Foreign References:
| JP2001343082A | 2001-12-14 | |||
| JPH07248067A | 1995-09-26 | |||
| JPS5992269U | 1984-06-22 | |||
| JPH07229569A | 1995-08-29 | |||
| JP2001343082A | 2001-12-14 |
Other References:
See also references of EP 2787259A4
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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Claims:
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