Tube unit of ignition spark plug for engine

Details Tube unit of ignition spark plug for engine Tube unit of ignition spark plug for engine

2008-12-03

2010-11-09

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

High tension ignition system

Having a specific mounting of system component

Reexamination Certificate

active

07827976

ABSTRACT:
A tube unit of a spark plug for an engine that is used for mounting the spark plug in a cylinder head, may include a spark plug tube including a hollow tube body inserted in an interior mounting hole of the cylinder head, wherein a lower end of the hollow tube body that a gasket is coupled thereto is mounted at an upper end of a penetration hole formed at a lower deck, and a compression bolt engaged to the interior mounting hole of the cylinder head at an upper end of the hollow tube body so as to apply compression force to the hollow tube body and generate surface pressure to the gasket for sealing a gap disposed between the hollow tube body and the penetration hole while the compression bolt is engaged to the interior mounting hole of the cylinder head.

REFERENCES:
patent: 1534986 (1925-04-01), Natoli
patent: 2269076 (1942-01-01), Boll
patent: 2616407 (1952-11-01), Thomas
patent: 2646782 (1953-07-01), Fisher
patent: 4114568 (1978-09-01), Yanagihara et al.
patent: 4469059 (1984-09-01), Hukill
patent: 4901687 (1990-02-01), Jones
patent: 5014656 (1991-05-01), Leptich et al.

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