Patent ID: 7182186
Filing Date: 2007-02-27
Classification: B60T,F16D

Abstract:
1. A hydrodynamic brake comprising a stator comprising an annular stator shell with a multiplicity of stator blades in and arrayed around the stator shell; a rotor comprising an annular rotor shell with a multiplicity of rotor blades in and arrayed around the rotor shell; the annular stator and rotor shells being so shaped and arranged that they form a toroidal space with the stator and the rotor blades in the space, whereby a medium supplied to the toroidal space effects a braking action on the rotor; the space having a first and a second inlet and having an outlet; a storage space for a medium which is intended to be supplied to the toroidal space; a first pipe circuit coupled between the outlet from the toroidal space and the first inlet to the toroidal space; a second pipe circuit coupled between the storage space and the second; and a driver for the medium in the second pipe circuit, wherein a fluid pressure in the second pipe circuit provided by the driver during operation of the brake is always substantially lower than a fluid pressure in the first pipe circuit.