Glow plug for use in diesel engine and method of manufacturing t

Details Glow plug for use in diesel engine and method of manufacturing t Glow plug for use in diesel engine and method of manufacturing t

1982-02-19

1984-01-17

Mayewsky, Volodymyr Y.

Metal working

Method of mechanical manufacture

Electrical device making

29520, 29621, 123145A, 219270, 219541, 219552, 361266, H01C 1702

Patent

active

044256922

ABSTRACT:
In a glow plug for use in a diesel engine of the type wherein a heater rod is connected to one end of a hollow holder, and an external connecting terminal is inserted into the other end of the hollow holder through an electric insulator and electrically connected to the heater rod, an integrally combined terminal unit including a metal pipe, an electric insulator and the external connecting terminal embedded in the insulator is prepared. After inserting the terminal unit into the other end of the hollow holder, an external pressure is applied to the other end to deform the metal pipe for firmly bonding the metal pipe to the insulator. Thereafter an end surface of the other end of the hollow holder is caulked to form an annular ring that holds the inserted terminal unit. With this construction, the completed glow plug is maintained in a perfect air tight state regardless of the variation in the ambient temperature.

REFERENCES:
patent: 3749980 (1973-07-01), Baxter
patent: 4087904 (1978-05-01), Steinke et al.
patent: 4088105 (1978-05-01), Bhat et al.
patent: 4112577 (1978-09-01), Mann
patent: 4281451 (1981-08-01), Mann
patent: 4312120 (1982-01-01), Comer
patent: 4345555 (1982-08-01), Oshima

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