Patent ID: 9181918
Filing Date: 2015-11-10
Classification: F02F,F02P,H01T

Abstract:
1. An assembly comprising: a main body of an engine having a spark plug-mounting bore formed therein, the main body also having a female-threaded portion that is formed in an inner surface of the spark plug-mounting bore and a seat surface that is formed around an open end of the spark plug-mounting bore; a spark plug having a longitudinal axis and a male-threaded portion that is formed on an outer surface of the spark plug so as to threadedly engage with the female-threaded portion of the main body of the engine, the spark plug also having a seating surface that is formed on one side of the male-threaded portion so as to face the seat surface of the main body of the engine; and a substantially annular gasket interposed between the seat surface of the main body of the engine and the seating surface of the spark plug so as to hermetically seal therebetween, wherein