发明名称 |
Gas flow-sensor for chemical oxygen generation device |
摘要 |
The disclosed gas flow sensor has an orifice connected in an oxygen conduit and a pressure switch connected to the conduit by having a pressure chamber communicating with the conduit. The chamber terminates at a diaphram which is operatively coupled to a normally open microswitch by a spring loaded rod. As the flow rate of oxygen flowing through the conduit drops below a permissible minimum magnitude, back pressure on the orifice decreases so as to close the microswitch to provide a control signal. A bypass valve is connected across the orifice to prevent the oxygen pressure within the conduit from excessively increasing.
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申请公布号 |
US4140765(A) |
申请公布日期 |
1979.02.20 |
申请号 |
US19770805578 |
申请日期 |
1977.06.10 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
MARTIN, FRANK E.;RICH, III, EDWARD L. |
分类号 |
G01F1/36;A62B7/08;B01J4/00;B01J7/00;C01B13/02;(IPC1-7):B01J7/00 |
主分类号 |
G01F1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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