Apparatus for preventing after-fire in an internal combustion en

Details Apparatus for preventing after-fire in an internal combustion en Apparatus for preventing after-fire in an internal combustion en

1976-12-28

1978-07-04

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123124R, 123124A, 137480, 261DIG18, F02D 3100, F02M 2304

Patent

active

040982416

ABSTRACT:
Disclosed is an apparatus having an air control valve for introducing an amount of air into the intake system of an internal combustion engine when the engine begins to decelerate, for preventing after-fire of an unburnt air-fuel mixture in the catalytic converter arranged in an exhaust pipe of the engine. The apparatus further includes a temperature detecting valve adapted for stopping the operation of the flow control valve during engine warm-up operations. Therefore, introduction of air into the intake system is stopped even if the engine begins to decelerate and, also, a proper engine warm-up operation can be carried out.

REFERENCES:
patent: 1841749 (1932-01-01), Martin
patent: 1922266 (1933-08-01), Toman
patent: 2145230 (1939-01-01), Arrighi
patent: 3670709 (1972-06-01), Eckert
patent: 3707954 (1973-01-01), Nakada
patent: 3721222 (1973-03-01), Shioya
patent: 3739760 (1973-06-01), Charron
patent: 3866588 (1975-02-01), Nakada
patent: 3977380 (1976-08-01), Atsumi

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