Thermostatic valve for compensating air fuel mixture for air tem

Details Thermostatic valve for compensating air fuel mixture for air tem Thermostatic valve for compensating air fuel mixture for air tem

1979-02-16

1981-01-13

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

123552, 236 13, F02M3 100

Patent

active

042443431

ABSTRACT:
A thermostatic valve for compensating for the change in the intake air temperature of an internal combustion engine. The thermostatic valve has a temperature detector attached to a housing provided with a port in communication with atmosphere, a pipe in communication with a vacuum motor, a pipe in communication with the portion of the intake passage downstream from the throttle valve of carburetor and a pipe in communication with the float chamber of the carburetor and also with the air cleaner of the engine. A first valve element adapted to be operated by the temperature detector, and a second valve element adapted to be operated by the first valve element are disposed in the housing and are pressed against respective valve seats formed in the housing by means of springs. The introduction of vacuum in the intake passage into the vacuum motor for adjusting the intake air temperature is controlled in response to the change in the intake air temperature. At the same time, the shortage of intake air attributable to a rise of the intake air temperature is compensated by an additional supply of air which is made directly to the portion of the intake passage downstream from the throttle valve, upon detect of the rise of the intake air temperature.

REFERENCES:
patent: 4112896 (1978-09-01), Akado

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