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Secondary Brake System |
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Already since 1968 Voith Turbo offers secondary braking systems for road vehicles. Voith secondary retarders are installed in the power train after engine, coupling and gearbox. This arrangement after the gearbox is referred to as "secondary". There are two attachment and installation options of the Voith secondary retarder, that is, the retarder is either integrated into the gearbox or attached to it. The second variant is the so called "free installation", the retarder is directly integrated into the cardan shaft train of the vehicle and connected by two universal joint shafts to the gearbox and the rear axle, respectively.
A special quality of the secondary retarders is their independence from the selected gear, the brake force is thus not cut during gear shifts.
Voith Retarders are hydrodynamic brakes and feature a very simple structure: two impellers are facing another. The rotor and the stator. Between their chambers there is oil. The rotor is connected to the universal joint shaft of the vehicle, the stator to the stationary housing of the retarder. The rotor, driven by the universal joint shaft accelerates the oil, which is decelerated by the stator. This in turn decelerates the rotor and thereby brakes the vehicle. |
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