Patent ID: 6101810
Filing Date: 2000-08-15
Classification: F16D

Abstract:
A hydrodynamic coupling having a constant quantity of working fluid, the coupling comprising:a pump wheel and a turbine wheel which together form a working space for a working fluid;a first storage chamber in fluid communication with the working space; anda valve for displacing working fluid between the working space and the storage chamber in response to an external control during operation of the coupling;a housing which is connected, fixed for rotation, with the pump wheel, the housing surrounds the turbine wheel, the housing including the first storage chamber, the first storage chamber being disposed axially adjacent the pump wheel and being rotatable with the housing;a hydraulic pump provided in the first storage chamber, the pump having an inlet for working fluid at a radially outer end, and a radially inner end of the pump being in fluid communication with the working space.