Thermostatic automatic choke control for small engines

Details Thermostatic automatic choke control for small engines Thermostatic automatic choke control for small engines

1975-09-19

1977-06-28

Dority, Jr., Carroll B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

261 39B, 261 39R, F02B 3300

Patent

active

040318729

ABSTRACT:
The choke valve of a small engine, biased towards a closed position, is link connected with an air vane that tends to open it under force of cooling air blown across the engine. The air vane has a lost motion connection with a control shaft that is rotatable between defined hot and cold positions. Shaft position is established by two spirally coiled bi-metal thermostats, one for high temperatures, one for low temperatures, each in a unidirectional torque transmitting connection between the shaft and fixed structure whereby each thermostat imposes force upon the shaft only at temperatures within its own range.

REFERENCES:
patent: 2548334 (1951-04-01), Armstrong
patent: 2939445 (1960-06-01), Sterner
patent: 2956558 (1960-10-01), Sterner
patent: 3248094 (1966-04-01), Ball
patent: 3248675 (1966-04-01), Furbacher
patent: 3789814 (1974-02-01), Gillham
patent: 3863614 (1975-02-01), Thompson

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