Engine, air inlet system of engine and electronic air spray valve used by system

Abstract

The invention discloses an electronic air spray valve. When a current signal is transmitted by an electronic control unit, an electromagnetic coil is energized, electromagnetic force is generated, work is done by overcoming the elastic force of an elastic restoring piece, an armature and a valve head are picked up, the electronic air spray valve is opened at the moment and high-pressure air enters a valve body from a high-pressure air inlet at the tail of the valve body, is sprayed out through a high-pressure air outlet and enters an air cylinder; and when the current signal transmitted by the electronic control unit is cut off, the electromagnetic coil is de-energized, the electromagnetic force is released, the armature and the valve head are restored under the effect of the elastic force of the elastic restoring piece, the electronic air spray valve is closed, a complete air inlet process is completed and the air inlet amount can be controlled through the length of electronic pulses. Therefore, the electronic air spray valve has the advantages that the parts such as an air valve assembly are omitted, the air inlet structure is simplified, the power loss caused by complex connection is avoided and the air inlet amount can be effectively controlled. The invention additionally discloses an engine and an air inlet system of the engine, wherein the air inlet system uses the electronic air spray valve.

Description

Technical field [0001] The present invention relates to the field of engine technology, in particular to an engine and its air intake system and an electronic jet valve contained in the system. Background technique [0002] The engine mixes liquid or gas fuel with air and directly inputs it into the high-pressure combustion chamber inside the cylinder to burn and explode to generate power. It is also a heat engine that converts heat energy into mechanical energy. [0003] At present, the intake of the engine adopts a valve type structure. The use of this structure requires a complete set of components such as camshafts and valve components. The crankshaft drives the camshaft during operation, and the camshaft controls the opening and closing of the valve. The intake air volume is controlled by the cam profile of the camshaft, and the drive connection is complicated; the entire intake process needs to go through at least two power conversions. These, a lot of power is lost in the po...

AI Technical Summary

Problems solved by technology

[0003] At present, the air intake of the engine adopts a valve-type structure, which requires a complete set of parts such as camshafts and valve assemblies. During operation, the crankshaft drives the camshaft, and the camshaft controls the opening and closing of the valves. The amount of intake air is controlled by the cam line of the camshaft, and the drive connection is complicated; the entire intake process requires at least two power conversions, and a large amount of power is lost during the power conversion process; and this intake structure requires The air intake is designed on the cover, and the air intake manifold is separate, the structure is extremely complex and difficult to control

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