Afterburning prevention device for an internal combustion engine

Details Afterburning prevention device for an internal combustion engine Afterburning prevention device for an internal combustion engine

1974-12-10

1976-09-28

Burns, Wendell E.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 75B, 123119D, 123119DB, 123124R, 123124B, F02D 3100

Patent

active

039825078

ABSTRACT:
A three-valve prechamber internal combustion engine is provided with a conduit through which atmospheric air may be drawn into the intake passage leading to the prechamber. A solenoid valve in the conduit is opened during deceleration of the engine to lean-out any over-rich mixture and to remove any fuel droplets clinging to the walls of the auxiliary intake passage, thus preventing the temporary formation of an over-rich mixture which is not ignited by the spark plug. Such an over-rich mixture when exhausted into the exhaust passage contacts the hot portions thereof to be explosively ignited to produce the undesirable afterburning phenomenon.

REFERENCES:
patent: 2733696 (1956-02-01), Schneider
patent: 3408992 (1968-11-01), Von Seggern et al.
patent: 3418981 (1968-12-01), Von Seggern et al.
patent: 3470855 (1969-10-01), Von Seggern et al.
patent: 3543736 (1970-12-01), Suzuki et al.
patent: 3830205 (1974-09-01), Date et al.
patent: 3842810 (1974-10-01), Yagi et al.

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