Open the valve the mixed gas enters the cylinder. The cylinder head (end cover) has an intake valve at the top of the cylinder. When the air inlet valve is opened, the mixture of air gasoline will enter the cylinder the air inlet. The intake valve exhaust valve are the valves on the cylinder head, which control the intake exhaust holes respectively. Through the intake / exhaust passage air valve, the mixed gas is drawn in the exhaust gas is discharged after combustion. The cylinder head is made of iron aluminum die castings. Walkways. The intake port here is different the intake pipe the fuel injection device is installed at the front of the engine, the exhaust port is also different the exhaust pipe leading to the automobile exhaust purifier muffler at the rear of the engine. The passage is connected to the suction exhaust pipes, but we only call the parts in the cylinder passage. When the piston is depressed, the intake valve opens accordingly. The piston presses down the traction gas, the mixed gas enters the cylinder. The intake exhaust valves are located on the left right side of the cylinder head. The small round intake valve exhaust valve are closely arranged on the inner edge of the cylindrical cylinder. When the two intake valves on the right side are opened, the mixture will enter the cylinder, which is the intake stroke. The reason why there are two intake valves two exhaust valves is to leave as much intake space exhaust space as possible in the limited cylinder of the cylinder.

In the past, some engines had only one intake valve one exhaust valve, while others had three intake valves two exhaust valves to increase intake exhaust space. The reason why the intake valve is more than the exhaust valve is to increase the intake volume, burn more gasoline provide more power for the car. Here, I will show you the most common four valve combination, namely, there are two inlet valves exhaust valves. Although the quantity is equal, the size of the intake valve the exhaust valve are different, the intake valve is larger than the exhaust valve, which also increases the intake volume. After the intake stroke, both the intake exhaust valves are closed during the compression expansion strokes. When entering the exhaust stroke after the end of the expansion stroke, the exhaust valve on the left side will open to exhaust the exhaust gas the exhaust passage.

 Next, let me explain in detail the state of the mixture as it enters the cylinder. The air inlet tilts down extends to the cylinder. The front end of the air inlet is the air inlet on the cylinder head, which is controlled by the air inlet valve to open close. Looking at the intake valve directly above the cylinder, you will find that it is biased towards the side of the cylinder head. The air intake is obliquely connected to the cylinder biased towards the side of the cylinder head, which causes the mixture to enter the cylinder diagonally. Next, the mixture swirls in the cylinder, allowing the air gasoline to mix well. The intake pipe is inclined to one side, so the mixed gas forms vortex mixes completely. When drinking fruit juice mixed drinks, we will shake the cup to fully mix the contents of the cup, then form a vortex.

Similarly, vortices are formed in the cylinder to allow air gasoline to mix well. Because of the uniform taste, the mixed drinks are more delicious. In the same way, even full mixing of the gas mixture will make the gasoline burn quickly without leaving ashes. When the piston rises the spark plug ignites the gasoline, the swirl also accelerates the flame diffusion combustion speed. If it happens to rise to TDC the gas mixture when the body is completely compressed, the gasoline is immediately ignited burned off, the force to press the piston increases, which means that the combustion speed is increased. Please allow me to repeat it again. The intake valve is located on the cylinder head the intake port tilts to allow the mixture to flow into the cylinder. This is designed to make the mixture uniform, fully mixed capable of rapid combustion.