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Gas distribution phase mechanism and valve

- Dec 05, 2018 -

1. Principle and function of the valve phase mechanism

     The valve timing mechanism of the engine is responsible for supplying the cylinder with the fresh air necessary for the combustion of the gasoline, and discharging the exhausted gas. This set of actions can be regarded as the process of inhaling and exhaling the human body. From the working principle, the main function of the valve phase mechanism is to open and close the intake and exhaust valves of each cylinder according to a certain time limit, thereby realizing the whole process of engine cylinder ventilation and replenishment.


2. The principle and function of the valve

     The valve of the engine can be compared to a door. The size and length of the door opening determines the flow of people entering and leaving. The larger the angle at which the door is opened, the longer the opening time, and the greater the flow of people entering and leaving, and vice versa. The same principle applies to the engine, which creates the concept of valve lift and timing. The valve lift is like the angle at which the door opens. The valve timing is like the time the door is open. Looking at the problem from a three-dimensional perspective, the angle plus time is the size of a space, which also determines the amount of intake and exhaust in a unit of time.

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