The engine valve is a device responsible for inputting fuel into the engine and exhausting exhaust gas. Although there is a word difference, you must not confuse it with the throttle.

It is a very important component of the engine, mainly divided into exhaust valve and intake valve. The function of the intake valve is to suck in the gas mixed fuel, and then enter the engine to bring enough power to the vehicle. The function of the exhaust valve is to discharge all the exhaust gas and gasoline of the engine.

Most of the engines seen on the market now have 4 valves on the top of each cylinder, two are responsible for inputting fuel and air, and two are responsible for exhausting exhaust gas.

Of course, there are also manufacturers that use a 3 or 5-valve configuration. The advantage of this multi-valve setting is that it is easy to form a compact combustion chamber. The injector is arranged in the center, which can make the oil and gas mixture burn faster and more evenly. The weight and opening of each valve are appropriately reduced to make the valve open or close faster.

engine valve is broken symptoms:

1. When the valve of the vehicle is broken, it will cause poor exhaust duct sealing effect, which will cause the engine to leak air, reduce the pressure of the cylinder, and increase the fuel consumption after the power drops.

2. When the exhaust is not complete, it will shorten the service life of the spark plug, and even cause abnormal sound of the valve.

3. If the situation is serious, it will cause black smoke from the engine exhaust, and it will also cause blow-by in the air filter, which will make it difficult to start the vehicle.

In short, when using the vehicle, car owners should pay attention to the regular maintenance of various parts of the vehicle. Through regular maintenance, all parts of the vehicle can be used normally, reduce the incidence of failures, and extend the service life of each part of the vehicle. Travel brings certain protection and safety.