Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-09-16
1977-08-23
Burns, Wendell E.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123 25R, 123 25A, 123198A, 123124R, F02M 1308, F02B 7700, F02M 2304
Patent
active
040433064
ABSTRACT:
A spacer plate for disposition between the carburetor mounting boss of an internal combustion engine intake manifold and the mounting flange of an associated carburetor is provided. The spacer plate includes an opening formed therethrough for registry with each air and fuel passage in the associated carburetor and intake manifold and an elongated vapor discharge tube extends through the spacer plate between the upper and lower surfaces thereof. At least one intermediate portion of the discharge tube extends along one peripheral portion of the opening formed through the plate and includes at least one lateral outlet opening opening into the spacer plate air and fuel opening. Those portions of the discharge tube disposed in the spacer plate are partially flattened so as to be of reduced width in a direction disposed normal to the plane of the associated spacer plate. In the instance of the spacer plate for use between a multi-barrel carburetor and an associated intake manifold the lateral opening formed in the tube opens into the primary air and fuel passage closely beneath the idle jet outlet opening of the carburetor on the side of the carburetor throttle plate which swings upwardly in response to opening of the throttle plate. Also, if the spacer plate is to be used between either a one barrel carburetor or a two barrel carburetor which does not include primary and secondary air and fuel passages, the spacer plate has its vapor discharge tube lateral outlet opening positioned closely beneath the idle jet outlet opening or openings of the associated one and two barrel carburetors.
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patent: 3643641 (1972-02-01), Busse
Burns Wendell E.
Jacobson Harvey B.
O#Brien Clarence A.
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