Internal combustion engine with air-fuel mixture heating

Details Internal combustion engine with air-fuel mixture heating Internal combustion engine with air-fuel mixture heating

1984-11-05

1985-08-13

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

123557, 261144, F02M 3100

Patent

active

045343330

ABSTRACT:
An internal combustion engine (1) includes a supplemental fuel passage (26, 27) which connects the carburetor (9) to the exhaust chest cover (28). A supplemental air inlet having a metering orifice (36) and passage (35) connects to the supplemental fuel passage. The resultant air-fuel mixture is heated before entry into the combustion chamber by passing the mixture through a heating passage (32) directly in front of the exhaust ports (13). When the engine is at idle with a completely closed throttle valve (19), the entire air-fuel supply for the engine is provided through the supplemental fuel and air passages and is heated in the heating passage prior to combustion. At increasingly open throttle, air-fuel is increasingly provided from the conventional primary carburetor output, with the heated air-fuel mixture being supplied in gradually decreasing amounts.

REFERENCES:
patent: 1610152 (1926-12-01), Renard
patent: 1665630 (1928-04-01), Lamotke
patent: 2150764 (1939-03-01), Farineau
patent: 2609801 (1952-09-01), Kiekhaefer
patent: 3554174 (1971-01-01), Clawson
patent: 3762378 (1973-10-01), Bitonti
patent: 4019477 (1977-04-01), Overton
patent: 4030453 (1977-06-01), Sugimoto
patent: 4040400 (1977-08-01), Kiener
patent: 4201167 (1980-05-01), Bayley
patent: 4491119 (1985-01-01), Feszu

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