Method and apparatus for heating an intake system on an internal

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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123122R, 123141, 165 52, F02M 3100

Patent

active

039723135

ABSTRACT:
A method and apparatus for heating the air-fuel mixture in the intake system or intake manifold of an internal-combustion engine which includes a heat exchanger heated by the exhaust gases out of the engine located between the carburetor of an internal-combustion engine and the engine cylinders. The air-fuel mixture is heated by passing through the heat exchanger and around the heat exchanger ports. The temperature of the heat exchanger can be varied to insure maximum vaporization of the fuel in the air stream.

REFERENCES:
patent: 1278558 (1918-09-01), Arndt
patent: 1392168 (1921-09-01), Johnson
patent: 1706623 (1929-03-01), Link
patent: 1786233 (1930-12-01), Ferrara
patent: 2001669 (1935-05-01), Smith
patent: 2833261 (1958-05-01), August
patent: 2846989 (1958-08-01), Eskew
patent: 3139874 (1964-07-01), Krein
patent: 3762385 (1973-10-01), Hollnagel

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