Electric heating – Heating devices – Resistive element: igniter type
Patent
1985-02-13
1986-04-15
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
Resistive element: igniter type
123145A, 123145R, 219541, 361266, F23Q 722
Patent
active
045829810
ABSTRACT:
A glow plug having a hollow cylindrical metal shell, an axial electrical terminal, and a heater member protruding externally from the shell. The heater member has a surface film heater element disposed on at least one surface of an electrically nonconductive cylindrical substrate. Electrical connections between the heater element, the shell and the axial electrode are made by conductive surface films. A first conductive surface film disposed on the external surface of the cylindrical substrate makes electrical contact with the shell. A second conductive surface film disposed on the internal surface of the cylindrical substrate makes electrical contact with the axial electrical terminal. The heating element is preferably a transition metal surface film which catalytically reacts with the air/fuel mixture to enhance combustion at lower temperatures. The thermal response time of the surface film heater element from ambient to an operating temperature exceeding 800.degree. C. is less than 5 seconds.
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Brooks Mark A.
Grimes Donald A.
Heischman Fred E.
Allied Corporation
Ignatowski James R.
Mayewsky Volodymyr Y.
Wells Russel C.
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