Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1980-07-10
1981-07-21
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123557, F02M 3100
Patent
active
042792347
ABSTRACT:
A carburetion system for providing improved cold start engine operation comprises a carburetor having an air-fuel passage, an air inlet to the passage, a fuel inlet to the passage for mixing fuel and air in the passage, and an outlet from the passage for delivering a mixture of air and vaporized fuel to the engine. A heater comprising a ceramic resistor body of a material of positive temperature coefficient of resistivity has a plurality of passages extending through the body and has means directing electrical current through the body for heating the body. The heater is mounted at the outlet of the air fuel passage of the carburetor with the heater body passages aligned with the air-fuel passage to pass the air-fuel mixture through the heater passages in heat-transfer relation to the body to facilitate vaporization and mixing of the fuel in the air-fuel mixture.
REFERENCES:
patent: 3927300 (1975-12-01), Wada
patent: 3987772 (1976-10-01), McBude
Berg Peter G.
Marcoux Leo
Haug John A.
Lazarus Ronald H.
McAndrews James P.
Sharp Melvin
Texas Instruments Incorporated
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