Gas ventilation system for internal combustion engine

Details Gas ventilation system for internal combustion engine Gas ventilation system for internal combustion engine

1997-01-07

1999-03-23

McMahon, Marguerite

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123568, F01M 1300

Patent

active

058846123

ABSTRACT:
A gas ventilation system for an internal combustion engine is provided which includes a downstream intake pipe communicating with cylinders of the engine, an upstream intake pipe communicating with the downstream intake pipe through a throttle valve, and a gas ventilation pipe for recirculating a given gas to the engine. The system also has an inner hollow cylinder connected to the upstream intake pipe, disposed within the downstream intake pipe to define a gas passage between the periphery of the inner cylinder and an inner wall of the downstream intake pipe. The gas passage communicates with the gas ventilation pipe and serves as an isolating member for isolating flow of the gas entering the downstream intake pipe through the gas ventilation pipe from swirls produced by intake air flowing downstream of the throttle valve from the upstream intake pipe.

REFERENCES:
patent: 2128154 (1938-08-01), Masters
patent: 4191150 (1980-03-01), Siewert
patent: 4922882 (1990-05-01), Topfer
patent: 5533487 (1996-07-01), Cailey
patent: 5572979 (1996-11-01), Czadzeck

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