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Maxus car vacuum booster drum role

Maxus car vacuum booster drum role

  • Categories:News
  • Time of issue:2023-03-30 21:17
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Maxus car vacuum booster drum role

A vacuum (negative pressure) is used to increase the force applied to the pedal by the driver. A large force drum is also known as a vacuum booster. The vacuum booster is usually located between the brake pedal and the brake master cylinder, and for ease of installation, is usually combined with the master cylinder in one assembly, with a portion of the master cylinder going deep into the vacuum booster housing.

The brake power drum is also known as the vacuum booster pump, a device located in the engine compartment. When the driver presses the brake pedal, the vacuum booster pump can amplify the driver's force on the brake pedal, which can be understood as the vacuum booster pump helping the driver to press the brake together.

The working principle of the brake booster pump is as follows:

The brake booster pump uses the principle that the engine works by inhaling air, causing a vacuum on one side of the booster, which produces a pressure difference relative to the normal air pressure on the other side, using this pressure difference to strengthen the braking thrust. Even if there is only a small pressure difference between the two sides of the diaphragm, due to the large area of the diaphragm, it can still generate a large thrust to push the diaphragm to the end of the pressure small;

In the working state, the push rod return spring makes the brake pedal in the initial position, at this time, the vacuum tube and vacuum booster connection position of the one-way valve is open, in the booster internal, the diaphragm will be divided into vacuum gas chamber and application gas chamber, the two chambers can be connected, in most of the time the two are isolated from the outside world, though there are two valve device can realize the gas chamber and the atmosphere connected;

In the engine running, depress the brake pedal, under the action of the push rod, the valve of the vacuum closed, at the same time, the other end of the push rod air valve was opened, to air into the (depress the brake pedal to produce gasping sound reason) will cause the chamber air pressure imbalance state, under the action of negative pressure, the diaphragm is pulled to the brake master cylinder end, and then drive the brake master cylinder push rod, which will achieve the leg force Further amplification of the function

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