What are the functions of Petrol Car valves?

In fact, Roewe Car, like people, also need ventilation, which is where exhaust gas and circulating gas are discharged.

Valves, also known as air valves, are primarily used as accessories in cylinders to control gases inside and outside Roewe Car. The valve adopts the four-stroke principle. Therefore, generally speaking, the engine of a four-stroke Petrol Car, whether it is gasoline or diesel, must have valves.
There is a lot of knowledge and structure in valves, including valve guides, valve seats, valve springs, valve lifters, valve rocker pushrods, valve control rods, etc. These are the important parts that make up the valve. and valves for Petrol Car parts.
Valve structures and types fall into many categories. There is also a lot of knowledge about the structure and quality of valves. Check the valve before installation. This can ensure the normal use of the valve, and there are many clever tricks in the process of using the valve. When a valve is damaged, we need to know what to do.
Since valves are important exhaust ports in Petrol Car components, we need to understand valves.