What is an Allison retarder?
Allison’s hydraulic retarder is basically a vaned flywheel in the transmission housing. The transmission directs oil into the retarder housing to absorb the vehicle’s energy through the drive shaft. They generate the greatest braking at high drive shaft RPM and work independent of engine speed or gear ratio.
When should retarder brakes be turned off?
Retarders are mechanisms in some vehicles that help slow a vehicle and reduce the need for braking. However, using a retarder may cause wheels to skid when they have poor traction. Turn off retarders when traveling under wet, snowy, or icy conditions.
How does a Volvo retarder work?
The retarder consists primarily of two impellers; a fixed one (stator) and a rotating one (rotor) which counteract each other with the help of oil. Due to the fact that the blades on the stator and rotor are angled towards each other, the flow of oil between them is counteracted.
What is a gearbox retarder?
A retarder is a device used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles. Retarders serve to slow vehicles, or maintain a steady speed while traveling down a hill, and help prevent the vehicle from “running away” by accelerating down the hill.
What’s a brake retarder?
Retarders are used to further improve the braking performance on commercial vehicles. Like engine brakes, they are wear-free continuous brakes. Retarders relieve the service brake and increase the active safety and cost-effectiveness of commercial vehicles. Retarders are installed in a commercial vehicle’s drive train.
How does a retarder brake work?
The retarder works by absorbing energy during the compression stroke, and throwing away this energy through the exhaust valves as the piston completes its compression stroke. The most popular engine compression retarder is the Jake Brake.
What is the meaning of retarder?
retarder. / (rɪˈtɑːdə) / noun. a person or thing that retards. a substance added to slow down the rate of a chemical change, such as one added to cement to delay its setting.
What does a brake retarder do?
Retarders are used to further improve the braking performance on commercial vehicles. Like engine brakes, they are wear-free continuous brakes. Retarders relieve the service brake and increase the active safety and cost-effectiveness of commercial vehicles. They convert some of the vehicle’s kinetic energy into heat.
When should you use a retarder?
Is retarder the same as engine brake?
Power is both the blessing and the curse of diesel engines, which is where retarders, more commonly known as engine brakes, come into play. Pacbrake explains that since diesel engines lack a retarding effect when the throttle is in the off position, truck brakes have to work extra hard to slow down and stop a vehicle.