Intake system for an internal combustion engine

Details Intake system for an internal combustion engine Intake system for an internal combustion engine

1996-07-29

1997-09-23

Argenbright, Tony M.

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

123308, 123406, F02B 3100

Patent

active

056693478

ABSTRACT:
An intake system for a multicylinder internal combustion engine includes a manifold having inlet runners for conducting charge air into the cylinders of an engine, and at least one secondary throttle valve situated within at least one of the inlet runners. An actuator positions the secondary throttle valve, with the actuator being operated by a controller. The controller receives a sensed value from at least one engine operating parameter sensor, determines an appropriate position for the secondary throttle valve and predicts an optimum transition point at which the secondary throttle valve transitions to the appropriate position. The controller then initiates operation of the actuator at a point before the transition point such that the engine smoothly transitions between a first operating condition and a second operating condition.

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