Many people may be at a loss when they hear this name. What is it? Haven't heard of it! Even people who have some knowledge of cars may have only heard of this name. As for the specific role of it, I don’t know much, so let’s take a look at it together today! The vacuum pump inside the car is generally an existence that provides assistance to the car. It is an indispensable thing. For those who don’t know it well, For the consideration of your car, it is best to understand this thing, what role it plays inside the car, what is its working principle, and how to maintain it. Only after understanding can you know how to do it is best for it. of.

One: Introduction to vacuum pumps. The braking system of the family car we usually use usually relies on hydraulic pressure as the transmission medium. Compared with the pneumatic braking system that can provide power, it needs an assistant system to control the driving. The brake of the operator provides assistance, and the power-assisted system of vacuum brake can also be called a vacuum servo system.

And it first uses human hydraulic braking, and then adds another source of braking ability to help its boost, so that the two braking systems can be used together, that is, they can be used as braking. A system that uses this to provide energy. Under normal circumstances, its output is mainly the pressure generated by the power servo system, but when it fails to work normally, the hydraulic system can still be driven by manpower to help it. .

Two: working principle. Regarding its source, we can mainly start with the following. First, a car equipped with a gasoline engine. Generally, the engine uses an ignition type, so a relatively large vacuum pressure can be generated in the intake manifold. This can provide a sufficient amount of vacuum source for the vacuum assisted braking system, but for diesel engine-driven vehicles, because its engine uses compression ignition, it cannot be provided at the intake branch pipe. The same level of vacuum pressure requires the use of a vacuum pump that can provide a vacuum source. In addition, there are also engines designed for vehicles to meet certain environmental protection requirements for automobile emissions. They also need to provide sufficient vacuum sources to ensure The car can run normally.

Three: Symptoms when damaged. Its function is mainly to use the vacuum generated by the engine when it is working, and then provide enough boost for the driver when stepping on the brake, so that the driver will be more brisk and easy when stepping on the brake, but once the vacuum pump is damaged, It lacks a certain amount of power, so it feels heavier when you step on the brakes. In addition, the brake effect will be reduced, and sometimes it will even fail, which means that the vacuum pump is damaged. However, the vacuum pump cannot be repaired in general, so if it is damaged, it can only be replaced with a new one.

But you must ensure its working performance so that your car can maintain normal operation. Only by understanding these can you better protect it and enable it to provide you with services for a longer time, especially when it is in In electric vehicles, it plays the role of an inflator, which shows its importance.