Brief introduction of hydraulic retarder;
The stator of the hydraulic retarder is the retarder shell, which is connected with the rear end of the transmission or the frame. The rotor is connected with the transmission shaft through a hollow shaft, and blades are cast on both the rotor and the stator. During operation, pressure is applied to the oil pool through the control valve, so that the working fluid fills the working chamber between the rotor and the stator. When the rotor rotates, the working fluid exerts torque on the stator, and the reaction torque of the stator becomes the braking torque of the rotor. Its value depends on the fluid volume and pressure in the working chamber (depending on the braking intensity gear set by the control valve) and the rotor speed. Million car purchase subsidy