Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1975-03-07
1976-06-15
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
123DIG11, F02M 302
Patent
active
039636704
ABSTRACT:
A carburetor is disclosed which includes a supplementary fuel/air supply circuit for bypassing a throttle valve to provide a fixed fuel/air idle mixture. The supplementary fuel/air supply circuit includes separate fuel and air passageways which join at a mixing intersection. The mixing intersection communicates with a main bore of the carburetor at a point below a throttle valve thereof. The supplementary fuel/air supply circuit also includes a piston valve, which is responsive to manifold vacuum, to control flow of air through the air passageway so that the air passageway is open during periods of high manifold vacuum but closed during periods of low manifold vacuum. An idle-mixture adjusting screw is provided for adjusting air flow through the air passageway; a piston-stop adjusting screw is provided for tuning the position of the piston valve at its "closed" position; and, in one embodiment, a special plug is provided for holding the piston valve in a piston chamber.
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patent: 3677526 (1972-07-01), Pierlot
Kalert Ralph E.
Smith Robert J.
ACF Industries Incorporated
Miles Tim R.
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