专利名称：Control system发明人：Jaykishan C. Patel申请号：US05/504252申请日：19740909公开号：US03938941A公开日：19760217
摘要：A low voltage thermostatically energizable control system for a fuel burnerhaving a fuel valve and operable from a direct current. The control system includesmeans for actuating the fuel valve to enable flow of a combustible fuel from the burnerand means for spark igniting the fuel emitted from the burner. Means for detecting aflame is disposed near the burner, and the impedance between the detecting means anda point of reference potential is greater when no flame is present at the burner and islower when a flame is present at the burner. A semiconductor device is coupled to thedetecting means for conducting current only when the impedance between the detectingmeans and the point of reference potential is lower thereby to indicate the presence of aflame, and means is responsive to the current conducted by the semiconductor device fordisabling the spark igniting means.
申请人：GENERAL ELECTRIC COMPANY
代理人：Joseph E. Papin
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