A Tandem Valve Speed ​​Control System for Rotating Front Intake Valves

Abstract

An object of the present invention is to provide a series valve speed control system (SVSC) that rotates a front intake valve. The system includes two intake valves connected in series: the structure and control method of the rear intake valve are consistent with those of traditional engines; the front intake valve adopts a rotary intake valve, and the rotation of the rotary intake valve is controlled by the crankshaft to adjust the rotary intake valve. The valve cover controls the opening phase of the front intake valve, which can control the opening overlap angle of the two valves, thereby controlling the intake air volume entering the engine cylinder, and achieving the purpose of adjusting the engine. The front intake valve of the present invention adopts a rotary intake valve, which has a simple structure and is easy to operate, and the rotation angle of the rotary intake valve sleeve is controlled by a computer, which can easily realize the control of the optimal intake lag angle under heavy load conditions. The intake valve of the traditional ignited internal combustion engine is cancelled, the pumping loss of the traditional ignited internal combustion engine under medium and small loads is reduced, the optimal intake lag angle is easily controlled, and the economy of the engine is improved.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and relates to a series valve speed control system (SVSC) of a rotary front intake valve. Background technique [0002] Ignition internal combustion engine load regulation is accomplished by controlling the intake air volume, and the throttle valve controls the air volume entering the cylinder, that is, through the throttling effect of the throttle valve, the intake air volume required by the engine is controlled. When the throttle opening is small, the engine pumping loss increases and the engine economy becomes poor. [0003] When the load is low, the engine needs less air intake, the throttle opening is small, and the throttling effect is increased. The air entering the cylinder requires a corresponding increase in suction work, that is, the pumping loss increases and the fuel consumption increases. [0004] When the load is high and the engine is at high speed, it is desi...

AI Technical Summary

Problems solved by technology

No matter which method, in addition to the complicated structure and high cost, most of them do not really eliminate the pumping loss caused by the throttle valve.

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