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List of the table of contents of this article:

• 1、 Is the fifth valve of a single-cylinder 5-elve engine an inlet or an outlet valve?
• 2、 How to distinguish between two valves and five valves in Jetta cars!
• 3、What is the reason for the old Jetta to speed up quickly

Is the fifth valve of a single-cylinder 5-elve engine an inlet or an outlet valve?

Engine: three-cylinder, four-cylinder, six-cylinder, eight-cylinder, etc. Each cylinder has two valves, four valves and five valves. However, most of the engines have four cylinders with eight valves or four cylinders with sixteen valves. The valve consists of intake and exhaust, which play the role of opening and closing the inlet and exhaust channel.

In the four-bal valve mechanism, each cylinder has two intake valves and two exhaust valves.The differences between 4 valves and 5 valves per cylinder are as follows: 1. If there are more valves, at the same pressure, the mixture of air and gasoline will atomize better and burn more fully.

The valve is divided into two types: intake valve and exhaust valve, which are used to close the inlet and exhaust channels respectively. The valve is composed of the head and the rod, and the head is made into a conical shape to match the conical surface of the valve seat. The cone angle of the head is generally 45°. The diameter of the intake valve head of the same engine is greater than the diameter of the exhaust valve head to increase the inflation of the engine.

The working principle of automobile valve cylinder: air converts thermal energy into mechanical energy through expansion in the valve cylinder, and the driving mechanism moves linearly, swings and rotates.

How to distinguish between two valves and five valves in Jetta cars!

The five valves are single-cylinder five-valves, with three in and two rows. Increasing the air intake makes the combustible mixed gas in the combustion chamber burn more fully, so the power is stronger, but at the same time, the fuel consumption is also higher. The two valves are single-cylinder and two-valves, one in and one row, and the low-speed torque is large. Under the condition of meeting the daily power requirements, the fuel consumption and use cost are very low.

The difference is very simple. Look at the machine filter with a flat seat. If there is a tube on it, it is 5V, and if there is no tube, it is 2V.

But the number of valves is not the more, the better. 5 valves can indeed improve the air intake efficiency, but the structure is extremely complex and difficult to process. Ordinary vehicles are rarely used. I hope my answer will be helpful to you.

Each has its own advantages, and the easy maintenance point of 2 valves, nowThe Jetta are all 2 valves, and the 5 valves can only be bought in 2 hands. There is not much difference at low speed, but if you run at high speed, the 5 valves are absolutely powerful. Jetta is a joint venture of the German Volkswagen Group in China - FAW-Volkswagen Co., Ltd. produces a car brand.

First of all, valve means the number of valves, the total number of single-cylinder intake and exhaust valves, 2 valves are single intake valves and single exhaust valves, and 5 valves are 3 intake valves and 2 exhaust valves.

Jetta only has the GT CT GTX models with a 5-valve engine. The rest are 2-valve. The valve means that there are several intake and exhaust valves in each cylinder of the engine.

What is the reason why the old Jetta accelerates faster

1. The acceleration of the old Jetta is due to its five-balve engine. The old Jetta's gtx engine has five valves in each cylinder, including three intake valves and two exhaust valves. Jetta is a very classic Volkswagen model, and there are still many fans in China.

2. The old Jetta accelerates fast because it is equipped with a five-vele engine. The old Jetta's gtx engine has five valves per cylinder, and these five valves have three intake valves and two exhaust valves.Jetta is a very classic model under Volkswagen, and this car still has many car fans in China.

3. The fast acceleration of the old Jetta is due to the fact that it is equipped with a five-balve engine. The old Jetta's gtx engine has five valves per cylinder, and these five valves have three intake valves and two exhaust valves. Jetta is a very classic model under Volkswagen, and this car still has a lot of fans in China.