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Vacuum booster introduction Sep 01, 2018

Vacuum booster introduction

The vacuum booster is an important part of the brake system. The vacuum booster is a larger diameter chamber with a diaphragm (or piston) with a push rod in the middle. The chamber is divided into two parts. One part is connected to the atmosphere and the other part is connected to the engine intake pipe through a pipe. The vacuum booster utilizes the principle of inhaling air during operation of the engine, causing a vacuum on one side of the booster and a pressure difference from the normal air pressure on the other side, and utilizing this pressure difference to enhance the brake thrust. Therefore, if the vacuum booster is normal, as long as the brake pedal is lightly pressed, a considerable thrust can be generated to brake the rotating wheel.