Electrical connectors – Having spark or glow plug cover
Patent
1994-03-09
1995-10-10
Paumen, Gary F.
Electrical connectors
Having spark or glow plug cover
H01R 1111
Patent
active
054566096
ABSTRACT:
There is disclosed a plug cap device (11) for an internal combustion engine wherein a bore (15) receiving a corrugation portion and a cylindrical portion of an insulator of a spark plug has a first portion (15a) corresponding to the corrugation portion and a second portion (15b) corresponding to the cylindrical portion such that the inner diameter (.phi.P) of the first portion (15a) corresponding to the corrugation portion of the insulator is slightly smaller than the outer diameter of a major diameter portion of the corrugation portion and such that the inner diameter (.phi.Q) of the second portion (15b) corresponding to the cylindrical portion of the insulator gradually decreases from the inner diameter (.phi.P) of the first portion (15a) toward an insertion opening at which the spark plug is inserted to provide a tapered configuration, whereby the plug cap device (11) insures an improved electrical sealing property and provides high operating efficiency when fitted over and removed from the spark plug.
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Bierman Jordan B.
Paumen Gary F.
Sumitomo Wiring Systems Ltd.
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