发明名称 |
Flame detector, method and fuel valve control |
摘要 |
A flame detector and burner fuel valve control has an ultraviolet sensitive, cold cathode, gas discharge tube in a DC quench circuit. In the presence of a flame, the circuit generates a pulse signal at a frequency related to the intensity of radiation from the flame. The pulse signal from a contaminated tube is at a higher frequency. A frequency discriminator circuit distinguishes between a flame responsive signal and a contaminated tube signal and controls the burner fuel valve.
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申请公布号 |
US7088253(B2) |
申请公布日期 |
2006.08.08 |
申请号 |
US20040775925 |
申请日期 |
2004.02.10 |
申请人 |
PROTECTION CONTROLS, INC. |
发明人 |
GROW FRED |
分类号 |
G08B17/12;F23N5/08;F23N5/24 |
主分类号 |
G08B17/12 |
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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