Process and device for controlling the intake air of a spark-ign

Details Process and device for controlling the intake air of a spark-ign Process and device for controlling the intake air of a spark-ign

1996-06-17

1998-01-20

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Air entering combustion chamber through plural inlets

123569, 123585, F02M 2507, F02M 35108

Patent

active

057091919

ABSTRACT:
The invention relates to a device for controlling the intake air of a spark-ignition four-stroke engine with direct injection of fuel into combustion chamber (1), comprising a main pipe (2) equipped with a throttling means (9), at least a first (3) and a second (4) intake pipe coming from main pipe (2) and opening each into combustion chamber (1), a pipe (7) for recycling the exhaust gases back to the intake equipped with a throttling means (8) and that opens downstream from the throttling means (9) of the main pipe and a means for controlling the air flow supplied to the combustion chamber. According to the invention, said air flow control means comprises a pipe (10) mounted as a bypass on said main pipe (2), around the throttling means (9) thereof, said pipe (10) having a section substantially equal to that of main pipe (2), and a means (11, 12; 14) allowing to seal at least said bypass (10) as a function of the running conditions of the engine.

REFERENCES:
patent: 4153024 (1979-05-01), Bertling
patent: 4354464 (1982-10-01), Fujita
patent: 4498429 (1985-02-01), Satow et al.
patent: 4841935 (1989-06-01), Yamada et al.
patent: 4856473 (1989-08-01), Kawai et al.
patent: 5233956 (1993-08-01), Ueda et al.
patent: 5237973 (1993-08-01), Oda
patent: 5329912 (1994-07-01), Matsumoto et al.

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