Spark plug and adapter for lean mixture engine cylinders

Details Spark plug and adapter for lean mixture engine cylinders Spark plug and adapter for lean mixture engine cylinders

1979-03-20

1981-02-03

Myhre, Charles J.

Internal-combustion engines

Igniters

Sparkers

123273, F02B 1910

Patent

active

042481899

ABSTRACT:
A novel spark plug adapter unit for spark plugs of an internal combustion engine having a main combustion chamber defined by a cylinder bore and its associated piston and a valved intake passage for introducing a lean fuel-air mixture in the combustion chamber. The spark plug adapter mounted in the engine in the threaded socket for the conventional spark plug has a mini-combustion or spark ignition chamber about the spark gap and a valved branch passage to the ignition chamber connected to a first fuel supply, such as a raw fuel source or a rich fuel-air mixture source, to achieve ignition thereof in the ignition chamber causing a flame discharge which ensures ignition of another fuel mixture, such as a lean mixture, in the main combustion chamber.

REFERENCES:
patent: 2153598 (1939-04-01), Steward
patent: 2397367 (1946-03-01), Orzel
patent: 2642154 (1953-06-01), Wright
patent: 3661125 (1972-05-01), Stumpfig
patent: 3710764 (1973-01-01), Joahin
patent: 4006725 (1977-02-01), Baczek et al.
patent: 4041922 (1977-08-01), Abe et al.
patent: 4091771 (1978-05-01), Rapp et al.

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