Four-cycle engine

Details Four-cycle engine Four-cycle engine

1982-08-02

1985-05-07

Lazarus, Ira S.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Stratification in combustion chamber

123586, 123 80BA, 123190D, 123432, F02B 1700

Patent

active

045151270

ABSTRACT:
Several embodiments of induction systems for internal combustion engines which provide stratification with an open chamber thus eliminating the need for auxiliary chambers and obviating the need for employing fuel injection. In all embodiments, first and second intake passages communicate with the chamber and one of these intake passages delivers a substantially weaker mixture than the other. This weaker mixture is admitted during the initial intake stroke and a richer fuel/air mixture is admitted at the end of the intake stroke so as to insure the existence of a stoichiometric mixture at the spark plug at the time of firing.

REFERENCES:
patent: 3948227 (1976-04-01), Guenther
patent: 3976039 (1976-08-01), Henault
patent: 3994270 (1976-11-01), Nakano et al.
patent: 4317438 (1982-03-01), Yagi et al.

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