What is a retarder?
1 Answers
A retarder refers to a device that enables a vehicle to decelerate smoothly when slowing down or descending a long slope, avoiding the wear and heat caused by using the brake. Below is a detailed introduction to retarders: 1. Based on different working principles, automotive retarders can be classified into typical structural forms such as engine retarders, hydraulic retarders, electric turbo retarders, motor retarders, and aerodynamic retarders. 2. According to the form of braking torque application, automotive retarders can be divided into primary retarders (those acting on the front end of the transmission) and secondary retarders (those acting on the rear end of the transmission). 3. When descending long slopes, using exhaust brakes can achieve good braking effects. However, for heavy-duty mining dump trucks, exhaust braking has limited effectiveness and can cause some degree of damage to the engine. Therefore, mining dump trucks equipped with hydraulic-mechanical transmissions are generally fitted with hydraulic retarders.