Intake control system of engine

Details Intake control system of engine Intake control system of engine

1982-03-10

1985-07-16

Feinberg, Craig R.

Internal-combustion engines

Charge forming device

Injection or carburetion system having a series of throttle...

123308, 123432, 123 52M, F02M 912

Patent

active

045289581

ABSTRACT:
An embodiment of induction system for internal combustion engines that permit maximum power output while at the same time insuring good running at low speeds without loss in mid-range torque. Independent intake passages communicate with each chamber of the engine. A throttle valve arrangement is included that includes a first manually operated throttle valve positioned in a common portion of the intake passages, a second manually operated throttle valve that is positioned in the first intake passage between the first throttle valve and the chamber, and a third throttle valve positioned in the second intake passage between the first throttle valve and the chamber. A linkage system interconnects the first and second throttle valves so that the second throttle valve is opened at a predetermined degree of opening of the first throttle valve. The linkage causes the second throttle valve to be moved to its fully opened positioned before the first throttle valve is fully opened. The third throttle valve is automatically positioned in response either to atmospheric pressure to hold the third throttle valve in one position or induction system pressure to hold the third throttle valve in its other position.

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