Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1980-01-24
1982-08-31
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
91 24, 91 52, 91394, 261DIG74, F02M 114
Patent
active
043471960
ABSTRACT:
A carburetor equipped with an auto-choke device is disclosed wherein according to one embodiment a leak valve is disposed in a negative pressure chamber of a diaphragm device adapted to operate by a negative pressure in a suction passage downstream of a throttle valve so as to open a choke valve in said suction passage to a predetermined degree of opening (complete explosion opening) after an engine has rotated by itself, and when the diaphragm has executed a predetermined shift, the leak valve is opened, and simultaneously, the downstream of the leak valve is brought into the atmospheric pressure for engine temperatures below a set value and into the same negative pressure as that of the negative pressure chamber for engine temperatures at and above the set value, whereby the operating stroke of the diaphragm is changed-over in two stages in dependence upon the water temperature or oil temperature, and the complete explosion opening of the choke valve is changed-over in two stages so that it may become narrow when the water temperature or oil temperature is low and wide when it is high.
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patent: 4138978 (1979-02-01), Morikawa et al.
patent: 4178895 (1979-12-01), Benjamin
Hitachi , Ltd.
Miles Tim R.
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