What is a spring brake chamber? There are several types?

The spring brake chamber is part of the car's brake system. Generally installed on the driving axle of the car, the function is to provide braking torque for the car. There are two types of brake air springs, one is the double diaphragm spring brake air chamber, and the other is the combined spring brake air chamber. Their uses and principles are different.
Type of spring brake air chamber:
1. The purpose of the double diaphragm spring brake air chamber is composed of two independent diaphragm air chambers, which are independently operated by the components of the service brake and the parking brake or the emergency brake. It is used for the wheels Provide braking force.
2. The purpose of the combined spring brake air chamber is to provide braking force for the wheels. It is composed of two parts. The diaphragm brake part is used for service braking, and the spring brake part is used for emergency braking and parking brake. Both the spring brake part and the diaphragm brake part work completely independently.