Do you know the Intake Valve and Exhaust Valve of a Car?

As a GEELY Steering Ball Head Supplier, share with you.

Open the valve and the mixed gas enters the cylinder. There is an intake valve on the cylinder head (end cover) on the top of the cylinder. When the intake valve is opened, a mixture of air and gasoline enters the cylinder through the intake port. The intake valve and exhaust valve are valves on the cylinder head that control the intake and exhaust holes respectively. The mixed gas is sucked in through the intake/exhaust passages and valves, and the exhaust gas is discharged after combustion. The cylinder head is made of iron and aluminum die-casting. The intake and exhaust passages are located on the inner side of the cylinder head and are the intake and exhaust to the cylinder. aisle. The intake port mentioned here is different from the intake pipe with a fuel injection device attached to the front of the engine, and the exhaust port is also different from the exhaust pipe leading to the automobile exhaust gas purifier and muffler behind the engine. The channel is connected to the suction pipe and the exhaust pipe, but we only call the part located inside the cylinder as the channel. When the piston is depressed, the intake valve opens. The piston presses down the pulling gas, and the mixed gas takes the opportunity to enter the cylinder. The intake valve and exhaust valve are located on the left and right sides of the cylinder head. The small and round intake and exhaust valves are closely arranged on the inner edge of the cylindrical cylinder. When the two side-by-side intake valves on the right are opened, the mixed gas will enter the cylinder, which is the intake stroke. The reason why there are two intake valves and two exhaust valves is to leave as much intake space and exhaust space as possible in the limited cylinder of the cylinder.

Geely Intake Valve

Piston

In the past, some engines had only one intake valve and one exhaust valve, and some had three intake valves and two exhaust valves in order to increase the intake and exhaust space. The reason why there are more intake valves than exhaust valves is to increase the amount of intake air, burn more gasoline, and provide more power to the car. Here, let me explain to you the most common four-valve combination, that is, there are two intake and exhaust valves each. Although the number is equal, the size of the intake and exhaust valves is different. The intake valve is larger than the exhaust valve, which is also to increase the intake air volume. After the intake stroke is completed, in the compression stroke and expansion stroke, the intake valve and exhaust valve are both in a closed state. When entering the subsequent exhaust stroke after the expansion stroke, the exhaust valve on the left will open to discharge exhaust gas from the exhaust duct.

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