Two-cycle engine

Details Two-cycle engine Two-cycle engine

1983-11-17

1985-08-06

Feinberg, Craig R.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

123668, F02B 7508

Patent

active

045328960

ABSTRACT:
An improved two-cycle engine in which the inner wall of the head of the combustion cylinder facing the combustion chamber is formed of a heat-insulating ceramic element which surrounds the tip of a mounting portion of the spark plug of the cylinder. The tip of the spark plug should be threadless in the area surrounded by the ceramic element. The ceramic element is preferably a sintered product made of silicon nitride, zirconia, sialon, alumina or silicon carbide.

REFERENCES:
patent: 3657078 (1972-04-01), Schweikmer
patent: 4074671 (1978-02-01), Pennila
patent: 4254621 (1981-03-01), Nagumo
patent: 4398527 (1983-08-01), Rynbrandt

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