Rain cover of an ignition plug attaching hole

Details Rain cover of an ignition plug attaching hole Rain cover of an ignition plug attaching hole

1994-10-12

1995-10-31

Argenbright, Tony M.

Internal-combustion engines

Igniters

H01T 1306

Patent

active

054620236

ABSTRACT:
The present invention prevents drops of water from entering an ignition plug attaching hole through a vent hole formed for communicating an inner space of the ignition plug attaching hole with the atmosphere. A rain cover of an ignition plug attaching hole includes a cylindrical portion engaged in an ignition plug attaching hole formed in an engine head, the cylindrical portion liquid-tightly sealing the ignition plug attaching hole. A vent hole is formed in the cylindrical portion for communicating a space formed in the ignition plug attaching hole with the atmosphere. A flange portion is perpendicularly provided to the cylindrical portion so that the flange portion comes into contact with an outer surface of the engine head. A wall surface is perpendicularly provided on a surface of the cylindrical portion on the atmosphere side; the wall surface is opposed to a surface of the flange portion on the atmosphere side and extends in a radial direction perpendicular to an axis of the ignition plug attaching hole. An opening of the vent hole on the atmosphere side is closely disposed facing the wall surface.

REFERENCES:
patent: 5377640 (1995-01-01), Kobayashi

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