Oil Coolers for Hydrodynamic Retarders

摘要

Hydrodynamic retarders [working with liquids] are used in commercial vehicles in order to support the actual brake system as an almost wear-free hydrokinetic brake. The kinetic energy is turned into heat through the deceleration caused by the flow speed of the oil, and this must be transferred back to the cooling system via a heat exchanger (Fig.1). The use of the retarder is either activated by the driver or works automatically. The braking power reaches several hundred KW.