Two-cycle jet ignition engine with prechamber in piston

Details Two-cycle jet ignition engine with prechamber in piston Two-cycle jet ignition engine with prechamber in piston

1975-01-13

1976-02-10

Myhre, Charles J.

Internal-combustion engines

Noncompression

123 32B, 123 67, 123191SP, F02B 1910, F02B 1918, F02B 300

Patent

active

039371883

ABSTRACT:
A two-cycle spark ignition engine is provided with jet ignition means including a prechamber formed within the piston and connected by a restricted passage with the main combustion chamber. At piston bottom dead center, the prechamber connects with an auxiliary inlet from which it receives a rich air-fuel mixture. At piston top dead center, the prechamber communicates with a spark plug that initiates combustion in the rich mixture, causing a flame jet to shoot through the restricted passage to the main combustion chamber, igniting and burning the lean mixture therein. A lean air-fuel mixture may be provided in the main chamber by any of several means, including direct or manifold injection, carburetion or carry-over from the rich mixture in the prechamber. Both uniflow scavenged and loop scavenged arrangements are disclosed.

REFERENCES:
patent: 2156665 (1939-05-01), Mallory

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