发明授权
- 专利标题: Low pressure switch/initiator/gas generator
- 专利标题(中): 低压开关/起动器/气体发生器
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申请号: US197627申请日: 1994-02-16
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公开(公告)号: US5429387A公开(公告)日: 1995-07-04
- 发明人: Marcus T. Clark , Brent R. Marchant
- 申请人: Marcus T. Clark , Brent R. Marchant
- 申请人地址: IL Chicago
- 专利权人: Morton International, Inc.
- 当前专利权人: Morton International, Inc.
- 当前专利权人地址: IL Chicago
- 主分类号: B60R21/26
- IPC分类号: B60R21/26 ; B60R21/264 ; B60R21/272 ; H01H35/34
摘要:
A single device acts as a pressure switch, gas generated heater, and an igniter. The device has pyrotechnic material such as a combustible gas in an inner chamber. An outer chamber, that is, a chamber in which the device is positioned, includes a gas that may or may not be combustible. A monitor current flows through a pressure monitor resistor and a bridgewire resistor monitoring continuity. When the pressure in the outer chamber decreases below a threshold value, the pressure monitor resistor breaks continuity and causes a resistance change. If an air bag is to deploy, the bridgewire resistor heats up to a point that the pyrotechnic material in the inner chamber is ignited. The resulting combustion ruptures pressure discs and the outward hot product heats the gas in the outer chamber. The outer chamber ruptures and the heated gas therein flows in the air bag.
公开/授权文献
- US6043794A Whip antenna 公开/授权日:2000-03-28