Automatic choke system for an automotive engine

Details Automatic choke system for an automotive engine Automatic choke system for an automotive engine

1985-10-15

1988-03-15

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123179G, 261 396, F02M 112

Patent

active

047305894

ABSTRACT:
An automatic choke system has a thermostatic spring connected to a choke valve, and a heater for heating the thermostatic spring so as to open the choke valve. A control circuit is provided for controlling the current passing through the heater. At starting of an engine, when cooling water temperature is lower than a predetermined temperature the control circuit operates to decrease the current so as to slowly open the choke valve. When the cooling water temperature is higher than a predetermined temperature, a rated current is supplied to the heater so as to quickly open the choke valve.

REFERENCES:
patent: 3768453 (1973-10-01), Hurst
patent: 3818881 (1974-06-01), Hosho et al.
patent: 4344898 (1982-08-01), Takada et al.
patent: 4463723 (1984-08-01), Tansuwan
patent: 4562819 (1986-01-01), Kobayashi et al.

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