Dowty retarder eliminates the attention link of "dead top" phenomenon

Because the dowty retarder has a reaction force on the wheels, if the pull-out speed is too fast or it accelerates instantaneously, the reaction force will cause a "jump" phenomenon of the drawn-out vehicle. It is running on a standard stable straight line, which increases the instability factors of the vehicles in the train in operation, and the more the instability factors increase when the vehicle reaches the rear of the train, the comprehensive analysis shows When the vehicles in the towing train pass through the "dead top" part, it is easy to cause an off-line accident in the top area.

In view of the harm of the "dead top" phenomenon of the dowty retarder to the shunting operation, to avoid the occurrence of off-line accidents, the key points to pay special attention to are:

1. The dismantling and maintenance of the sliding cylinder assembly of dowty retarder. The interior of the cylinder and the piston rod assembly must be thoroughly cleaned and dried.

2. The opening test of the piston rod assembly of the ball valve of dowty retarder must be accurate and meet the requirements of technical parameter standards.

3. Check that the pin Φ2.5 × 12 is cracked or loose.

4. The pressure valve seat of the flat valve piston rod assembly of dowty retarder must be fastened firmly.

5. Check that the dowty retarder clamping spring is not damaged or deformed to avoid the return of the return valve plate and affect the return function of the piston rod assembly.