Intake control valve

Details Intake control valve Intake control valve

1993-07-13

1996-09-10

Solis, Erick R.

Internal-combustion engines

Charge forming device

Fuel injection system

123308, 12318814, F02B 3100, F02P 500

Patent

active

055535909

ABSTRACT:
Control arrangements for the induction system of an internal combustion engine having a control valve in the induction passage which is moveable between an opened position wherein the flow into the combustion chamber is unrestricted and in a first direction and in closed position wherein the flow into the combustion chamber is restricted to accelerate the velocity of the charge entering the combustion chamber and change its direction from the first direction. Optimum positions are set for the control valve in response to engine speed and engine load but the control valve is held in a closed position when the engine speed is below a predetermined speed and regardless of the load and is also held in an opened position when the engine speed is above a second predetermined speed and regardless of load. Various routines are shown for positioning the control valve to accommodate catalytic convertor warm up, sudden acceleration or deceleration conditions and other transient conditions. In addition, the spark timing for the engine is also controlled in response to the operation of the control valve.

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