Throttle structure for an internal combustion engine

Details Throttle structure for an internal combustion engine Throttle structure for an internal combustion engine

1976-09-29

1978-07-11

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123122AC, 261144, 261145, F02M 3100

Patent

active

040995046

ABSTRACT:
An internal combustion engine is provided with an improved throttle structure. The engine includes a carburetor having an air passageway in it, and an intake manifold interposed between the engine and the carburetor, the carburetor being attached to the intake manifold by any convenient method. The intake manifold includes at least one wall defining a plurality of fluid passageways operatively connected to the carburetor and to the combustion chambers of the engine. In the preferred form of the invention, a cylindrical tube has an axial length chosen so that a first end of the tube extends into the carburetor while a second end extends into the intake manifold. The second end of the tube and the intake manifold define the throttle valve for the engine. The tube is mounted for movement between at least a first closed position where the second tube end is adjacent the wall of the manifold and a second open position where the second tube end is remote from the wall of the intake manifold. Preferably, the intake manifold wall is at least partially defined by a plate adapted to facilitate heat transfer between the intake manifold and an exhaust manifold of the engine, the exhaust manifold being operatively connected to the combustion chambers of the engine.

REFERENCES:
patent: 1676955 (1928-07-01), Kemp
patent: 3892214 (1975-07-01), Hzidacher
patent: 4008699 (1977-02-01), Braun

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