Plug cap device

Details Plug cap device Plug cap device

1993-06-21

1995-01-03

Nelli, Raymond A.

Internal-combustion engines

Igniters

F02P 2300

Patent

active

053776402

ABSTRACT:
A plug cap device has a plug cap body 110 provided with a groove 140 on the outer periphery. The groove 140 constitutes an air flow passage 150. The plug cap body 110 is provided with a recess in an intermediate portion of the air flow passage 150 on the outer periphery thereof so that the recess constitutes a water reservoir 260. High pressure air in a plug bore 102 is discharged through the air flow passage 150 from a vent hole 123 to an external area, thereby improving to vent the air. Water which enters the air flow passage 150 from the vent hole 123 is trapped in the water reservoir 260 so that the water is prevented from entering the plug bore 102.

REFERENCES:
patent: 1748650 (1930-02-01), Hollenbeck
patent: 2835724 (1958-05-01), Colbert
patent: 2904769 (1959-09-01), Sampson et al.
patent: 3545250 (1972-02-01), Estes
patent: 4205642 (1980-06-01), Nishimura et al.
patent: 4723211 (1988-05-01), Hirata et al.
patent: 4790767 (1988-12-01), Sturdevan et al.
patent: 5154624 (1992-10-01), Lemajeur et al.
patent: 5302131 (1994-04-01), Hertitier-Best

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