What is the classification of dowty retarder?

Dowty retarder is a device that uses hydraulic oil and elastomer as the medium, is installed on steel rails, and slides the cylinder head to contact the wheels to brake and decelerate the vehicle. So what is the classification of dowty retarder?

According to the development of dowty retarder in the past ten years, the new standard is classified according to its different characteristics. According to the installation method, it is divided into the inner and outer dowty retarder, and the function is divided into ordinary and special performance dowty retarder. Special performance dowty retarder are divided into controllable, unidirectional, high-speed locking and other dowty retarder. By classification, you can have a high degree of summary of dowty retarder.