Carburetor automatic choke construction

Details Carburetor automatic choke construction Carburetor automatic choke construction

1973-08-24

1977-09-27

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

219707, 261 39E, 261 39A, 261 39R, F02D 1108, F02M 110, F02M 2304

Patent

active

040504247

ABSTRACT:
The carburetor has a conventional automatic choke construction heating a bimetallic coil by engine exhaust stove heat to slowly open the choke valve during cold weather starts; supplemental heat is provided by an electrically controlled positive temperature coefficient heater device operable above a predetermined ambient temperature to move the choke valve open faster, to reduce emissions.

REFERENCES:
patent: 2965082 (1960-12-01), Carlson
patent: 3158322 (1964-11-01), Furbacher
patent: 3179098 (1965-04-01), Highley et al.
patent: 3185453 (1965-05-01), Mennesson
patent: 3198185 (1965-08-01), Nastas
patent: 3212486 (1965-10-01), Lorge
patent: 3230945 (1966-01-01), Goodyear
patent: 3237927 (1966-03-01), Bickhaus
patent: 3291461 (1966-12-01), Pope
patent: 3423569 (1969-01-01), Cappell et al.

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