What does the vacuum booster do on the brakes?_温岭市奥达机械有限公司|AODA machinery_What does the vacuum booster do on the brakes?

2022-03-12

What does the vacuum booster do on the brakes?

Vacuum booster is the core of the brake system, and there is a key component indispensable in the whole braking process, that is the vacuum booster of the brake. The reason for this is simply that a foot on the brake pedal is far from enough to stop a speeding car, requiring the help of a vacuum booster, which is easily recognizable in the engine compartment, the black, saucepan shaped thing called the vacuum booster.

Vacuum booster is a component that uses vacuum (negative pressure) to increase the force applied by the driver on the pedal. The vacuum booster is usually located between the brake pedal and the brake master cylinder. For easy installation, it is usually combined with the master cylinder as a component, and the master cylinder is partially penetrated into the vacuum booster housing.

Vacuum booster expansion tips:

The working principle of the vacuum booster is that there is a diaphragm diaphragm in the vacuum booster, which divides the vacuum booster into two gas chambers. When it is not working, the left and right gas chambers of the vacuum booster are connected and are in a vacuum state. When working, the pressed brake pedal drives the push rod to move to the left, and the air valve and vacuum valve located on the push rod also move to the left. The vacuum valve stops moving after closing the left and right air chamber passages, and the air valve continues to move to the left until the valve is opened to fill the right air chamber. Due to the pressure difference between the left and right gas chambers of the vacuum booster, the diaphragm of the gas chamber pushes the push rod of the main brake pump through the rubber reaction plate, so as to play the role of brake power. When braking force needs to be maintained, the gap between the air valve and the vacuum valve shrinks until the air passage is closed, leaving the booster in a balanced state to maintain braking.