Dowty retarder return time

Return time is also an important technical index of dowty retarder, which directly affects the effect of dowty retarder on vehicle work.

The return time not only depends on the structure of the dowty retarder itself, but also the hydraulic oil and grease used with the dowty retarder will become more viscous, which will slow down the return speed of the dowty retarder and may affect the braking work. Therefore, it is difficult to define the return time of each dowty retarder with a certain index.

In order to reflect the maximum freedom principle of the standard, the new standard does not make specific provisions on the return time, only specifies that the return time of the dowty retarder should ensure that "under the difficult winter conditions, when the dowty retarder works on the normal rolling vehicle, the return time should be less than the time between the two wheels of the bogie". As long as this one is satisfied, the return time will not meet this one for the brake of dowty retarder, and the return time will not meet this one for the brake of dowty retarder. According to this principle, the return time of various retarders in this unit can be specified in detail.