Ignition device for internal combustion engine and a...

Details Ignition device for internal combustion engine and a... Ignition device for internal combustion engine and a...

2005-03-29

2005-03-29

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

Spark plugs

With specific joint structure

C313S137000, C313S135000

Reexamination Certificate

active

06873094

ABSTRACT:
In an ignition device for an internal combustion engine which is mounted in a cylinder head in a state where a spark plug and an ignition coil are integrated with each other, the plug side tube section is made of ceramics and internally accommodates a center electrode and the coil side tube section is made of ceramics, with one of a primary winding and a secondary winding being wound around the coil side tube section. The plug side tube section and the coil side tube section are constructed as separate bodies and then combined with each other. This shortens the overall lengths of both the tube sections, thus preventing the occurrence of cracks or bends at calcining and improving the dimension accuracy after the calcining.

REFERENCES:
patent: 4568855 (1986-02-01), Nemeth et al.
patent: 907019 (1999-04-01), None
patent: 2000-252040 (2000-09-01), None
patent: 2000-27723 (2000-10-01), None

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