Internal-combustion engines – Starting device – For airplane
Patent
1978-11-02
1980-03-11
Myhre, Charles J.
Internal-combustion engines
Starting device
For airplane
123119F, 261 39D, F02M 716, F02N 1700
Patent
active
041922778
ABSTRACT:
A manifold depression responsive fuel pump has its fuel outlet connected to an automatic cold start air/fuel mixture supply device, and a movable stop, which limits movement of the pump diaphragm to enlarge the fuel chamber, has its position controlled by the engine temperature responsive thermostatic control mechanism of the cold start device. The pump diaphragm carries a shut-off valve opposite the pump fuel inlet. Fuel is pumped into the cold start device by the pump when the carburetter throttle valve is opened before the engine has warmed up to normal working temperature. The movable stop is moved towards the pump fuel inlet, as the engine warms up, and seats the shut-off valve in that fuel inlet when the engine has warmed up to its normal working temperature so that the pump does not function to pump fuel into the cold start device once the engine has warmed up to its normal working temperature.
REFERENCES:
patent: 3859974 (1975-01-01), Ross
patent: 3934571 (1976-01-01), Mennesson
patent: 3967610 (1976-07-01), Ross
patent: 4069802 (1978-01-01), Ross
patent: 4114584 (1978-09-01), Rogerson et al.
patent: 4144861 (1979-03-01), Yamashita et al.
Lall P. S.
Myhre Charles J.
Zenith Carburetter Company Limited
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