Brake air chamber, brake system comprising same and motor vehicle

Abstract

The invention discloses a brake air chamber. The brake air chamber comprises a casing, an energy storage spring, a piston, a piston shaft tube and a diaphragm. The inner space of the casing is divided into a front chamber and a rear chamber by the baffle of the casing, the piston is in slideable fitting with the casing, the rear chamber is divided into an energy storage chamber and a parking brake air inlet and outlet chamber, and the energy storage chamber is provided with the energy storage spring. The piston shaft tube is in sliding fitting with the baffle, the first end of the piston shaft tube is fixed with the piston, and the surface of the second end of the piston shaft tube is pressed against the diaphragm. The piston shaft tube also comprises a valve body and a valve disc, a spring is arranged between the second end of the valve disc and the valve body, and a second hole is blocked when the second end surface of the valve disc fits with the valve body. The invention also discloses a brake system comprising the brake air chamber and a motor vehicle comprising the brake system. The brake air chamber realizes gas exchange in the chambers. The interior cleanliness of the brake air chamber is ensured, so the service life of the product is prolonged.

Description

technical field [0001] The invention relates to the field of motor vehicles, and more specifically relates to a brake air chamber. The invention also relates to a brake system and a motor vehicle. Background technique [0002] The braking of a motor vehicle is achieved through a braking system. The process of braking is commonly known as braking; according to the different power of the braking system, motor vehicle brakes generally have oil brakes and air brakes. The oil brake has a simple structure and uses hydraulic oil to provide power for the brake pump. The gas powers the brake pump. Due to the rapid response of the air brake and the large braking force it can provide (high air pressure, which can reach 8-10 standard atmospheric pressure), the air brake method is widely used in large and medium-sized motor vehicles to ensure driving safety. The air brake system includes a brake chamber and a brake device. Currently on the market, the most common brake chamber is a p...

AI Technical Summary

Problems solved by technology

[0006] During the above-mentioned braking process, since the first air hole of the piston shaft tube 4 directly communicates with the outside world; the outside air enters the energy storage chamber A through the first air hole for gas compensation, and the suction force of the air pressure removes the dust from the outside. , sewage, mud and other debris are easily sucked into the energy storage chamber A together, causing damage to some parts, thereby shortening the service life of the product

[0007] At the same time, the braking system and the motor vehicle including the above-mentioned brake air chamber will also cause brake failure of the vehicle due to damage to some parts of the brake air chamber, resulting in potential safety hazards.

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