Auto Brake Pump Guide

The brake pump is a vital component in the automobile braking system. Its basic function is to convert the force of the driver stepping on the brake pedal into hydraulic pressure (or air pressure) and transmit this pressure to other components of the braking system, such as the brake caliper or brake drum, so as to achieve the deceleration and stop of the vehicle. The brake pump plays a decisive role in the safety performance of the vehicle.

Classification

Hydraulic brake pump:

Principle: When the driver steps on the brake pedal, the piston in the brake Master Cylinder will be pushed, and the brake oil (brake fluid) will be transmitted to the piston of each brake Slave Cylinder through the oil pipe through the push rod, pushing the brake shoe or brake piston to open outward, so that the brake pad and the inner surface of the brake disc or brake drum will produce friction, thereby achieving the braking effect.

Structure: It mainly includes a tank for storing brake oil at the top and a cylinder with a piston at the bottom.

Application: It is widely used in various passenger cars and commercial vehicles.

Pneumatic brake pump (air brake pump):

Principle: Compressed air is generated by an air compressor, and then the air is transmitted to the brake pedal through a pipeline, pushing the brake pad and the brake disc to generate braking force.

Structure: It may include air booster, air reservoir, piston, push rod and other components.

Application: It is usually used in large commercial vehicles, trucks and public transportation vehicles, etc. where strong braking force is required.

Working Principle

Whether it is a hydraulic brake pump or an aerodynamic brake pump, its basic principle is to convert the driver’s stepping force into a braking force through some way (hydraulic or air pressure), and pass it on to the wheel brake parts. In the hydraulic brake pump, this transformation is achieved through the flow of brake oil and the transmission of pressure; in the pneumatic brake pump, it is achieved by compressed the flow and pressure of the air.