Invention Grant
- Patent Title: Opening and closing valve for high-pressure gas
- Patent Title (中): 高压气体开关阀
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Application No.: US13432552Application Date: 2012-03-28
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Publication No.: US08820712B2Publication Date: 2014-09-02
- Inventor: Taneaki Miura , Hiroyasu Ozaki , Koichi Takaku , Koichi Kato
- Applicant: Taneaki Miura , Hiroyasu Ozaki , Koichi Takaku , Koichi Kato
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Squire Patton Boggs (US) LLP
- Priority: JP2011-074823 20110330
- Main IPC: F16K1/42
- IPC: F16K1/42 ; F16K1/38 ; F16K39/02 ; F16K31/06 ; F16K25/00
Abstract:
A pilot valve is provided with a conical first contact surface, and a pilot valve seat is provided with an annular second contact surface of which an initial contact portion with respect to the first contact surface has a circular-arc cross-section. The first contact surface is formed of a resin with elasticity, and the second contact surface is formed of metal. When a pressure-contact load is small, the first contact surface and the second contact surface come into line-contact with each other. When a pressure-contact load increases, the first contact surface and the second contact surface come into plane-contact with each other.
Public/Granted literature
- US20120248365A1 OPENING AND CLOSING VALVE FOR HIGH-PRESSURE GAS Public/Granted day:2012-10-04
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