Automatic choke system for carburetor

Details Automatic choke system for carburetor Automatic choke system for carburetor

1993-12-09

1995-01-03

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261DIG8, 261 443, F02M 106

Patent

active

053784111

ABSTRACT:
The present disclosure concerns an automatic choke system designed to make a whole carburetor shorter and more compact. The system comprises a case body having a generally inverted L-shape, with a thermo-element housed in a vertical portion of the case body. A thermistor proximate to thermally expanding wax inside the thermo-element is heated up by electric current, which increases its own electric resistance with the increasing heat. A piston is projected from the top end of the thermo-element by the thermal expansion of the wax. A link housed in the horizontal portion of the case body is pivotally supported therein so as to move a moving part downward when the link is acted on by the piston. The moving part pushes down a starter valve to close a by-pass passageway as well as push down a needle to close an auxiliary fuel passageway.

REFERENCES:
patent: 3613650 (1971-10-01), Stumpp
patent: 4292258 (1981-09-01), Sakurai et al.

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