Stratified combustion engine with prechamber

Details Stratified combustion engine with prechamber Stratified combustion engine with prechamber

1975-05-28

1978-01-31

Myhre, Charles J.

Internal-combustion engines

Two-cycle

Rear compression

123191S, 123191SP, F02B 1910

Patent

active

040710017

ABSTRACT:
A stratified combustion engine provided with a prechamber having no inlet valve associated therewith, wherein the precombustion chamber comprises a first chamber communicating with a main combustion chamber, a second chamber communicating with the first chamber only through an orifice, and a discharge electrode disposed in the orifice. In the suction stroke, a lean fuel-air mixture is charged into the main combustion chamber, while a stream of a rich fuel-air mixture, which is deflected in the direction of flow by impinging against the back face of an inlet valve, is introduced into the first chamber from the main combustion chamber through a communication passage, so that the so-called stratified charge can be achieved. In the compression stroke, the rich fuel-air mixture is charged from the first chamber into the second chamber through the orifice. In the combustion process, the rich fuel-air mixture existing in the orifice is ignited and the fuel-air mixture in the first chamber is burnt by the flame emerging continuously from the second chamber through the orifice so that the lean fuel-air mixture in the main combustion chamber can be burnt by the flame of the rich mixture burning in the first chamber.

REFERENCES:
patent: 1354924 (1920-10-01), Sublette
patent: 2316794 (1943-04-01), Johnson
patent: 2677356 (1954-05-01), Pielstick
patent: 2799257 (1957-07-01), Stumpfig et al.
patent: 2932289 (1960-04-01), Witzky
patent: 3283751 (1966-11-01), Goossak et al.
patent: 3382850 (1968-05-01), Baudry et al.
patent: 3926158 (1975-12-01), Dolza, Sr.
patent: 3955538 (1976-05-01), Noguchi et al.
patent: 3980060 (1976-09-01), Noguchi et al.

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