Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1979-03-05
1980-10-07
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
91408, 91395, 251 634, 251 78, 261 52, F02M 110
Patent
active
042268141
ABSTRACT:
An automotive type carburetor has a rotatable lever connected to the choke valve and to an actuating link having a pin-slot type connection to an engine vacuum controlled servo, a fast idle cam is connected to the choke lever by a lost motion pin and slot connection and to a second actuating link also connected to the servo by a pin-slot type connection, the servo pin-slot connections to the links are such that when the engine is started with the choke valve closed and the fast idle cam on its high cam step, vacuum applied to the servo during a first stage movement rotates the choke lever to open the choke valve and subsequently during a second stage movement both the choke lever is rotated further and the fast idle cam is rotated off its fast idle step position, to reduce the opening of the throttle valve while opening further the choke valve, the first stage movement of the servo moving a diaphragm and plunger until the plunger blocks a main vacuum feed line to the diaphragm, the second stage movement moving the diaphragm at a slower rate by applying vacuum to the diaphragm through a bypass passage bypassing the plunger, the bypass passage containing an adjustable needle valve.
REFERENCES:
patent: 3834677 (1974-09-01), Hosho
patent: 3872847 (1975-03-01), Charron et al.
patent: 3906911 (1975-09-01), Nakada et al.
patent: 3962379 (1976-06-01), Freismuth et al.
patent: 3962380 (1976-06-01), Cedar et al.
patent: 4078024 (1978-03-01), Bockelmann et al.
patent: 4098459 (1978-07-01), Benjamin
patent: 4129623 (1978-12-01), Rogerson et al.
Ford Motor Company
McCollum Robert E.
Miles Tim R.
Sadler Clifford L.
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