Working principle of automobile left brake auxiliary pump
Hydraulic drive, vacuum power
The working principle of automobile left brake auxiliary pump is mainly based on the principle of hydraulic transmission and vacuum power. The left brake auxiliary pump is an important part of the automobile brake system, and its working principle is as follows:
Hydraulic transmission principle : When the driver presses the brake pedal, the brake master pump will generate thrust and send the brake oil hydraulic to each brake sub-pump. The left brake auxiliary pump, as one of the sub-pumps, has an internal piston. When the brake oil pushes the piston, the piston will begin to move, and then push the brake pad to contact the brake disc, realizing the vehicle's braking .
Vacuum booster principle : brake booster pump (commonly known as brake booster pump) plays a key role in the braking process. It uses the principle of inhaling air when the engine is working to form a vacuum state on one side of the booster, resulting in a pressure difference relative to the normal air pressure on the other side, thereby enhancing 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, a large amount of thrust can still be generated to push the diaphragm towards the end of the low pressure .
Working process : When the engine is running, pressing the brake pedal will close the vacuum valve, and open the air valve at the other end of the push rod, so that air will enter the chamber and cause the air pressure imbalance. Under the action of negative pressure, the diaphragm is pulled to one end of the master brake pump, driving the push rod of the master brake pump, so as to realize the amplification of the leg strength .
In summary, the working principle of the left brake auxiliary pump involves the combination of hydraulic transmission and vacuum power, and the smooth braking of the vehicle is achieved through the pressure transmission of the brake oil and the role of the engine vacuum power.
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