Marine diesel engine parts introduce the working principle of engine intake valve

Engine intake valve is an important part of the engine, its role is to control the amount of air into the engine, so as to regulate the working state of the engine. The following will introduce the engine intake valve in detail from the working principle, structure and other aspects.

First, the working principle

The engine intake valve controls the amount of air entering the engine by opening and closing it. When the engine is operating, the intake valve is periodically opened to allow air to enter the combustion chamber. With the intake valve closed, the pressure in the combustion chamber will gradually increase, and the mixture of air and fuel will be compressed. When the intake valve is opened, fresh air will enter the combustion chamber, mix with the fuel, and be ignited to burn, thus generating power.

Ii. Structure

The engine intake valve is usually composed of a body, a spool, a spring and a seat. The valve body is the outer shell of the intake valve, which has certain strength and sealing performance. The spool is a key part of the intake valve, which has a taper shaped part that controls the opening and closing of the valve by moving up and down. The spring is used to maintain the elasticity of the spool when it is closed to ensure the tightness of the valve when it is closed. The seat is the fixed seat of the spool to ensure the tightness between the spool and the valve body.