Patent ID: 6928810

Claim:
A hydrodynamic component, comprising: two rotating blade wheels—one primary blade wheel and one secondary blade wheel which together form at least one torus-shaped working chamber; said chamber having at least one inlet for service fluid in the torus-shaped working chamber, said inlet in the working chamber being located in the core chamber of the working chamber at a blade of the blading of one of said rotating blade wheels, the vicinity of the lowest static pressure; at least one outlet from the torus-shaped working chamber; a working fluid circulation set up in the torus-shaped working chamber during operation; a closed circuit allocated to the working chamber, said closed circuit having an external section which is arranged between the outlet and the inlet; a service fluid supply and/or filling chamber connected with the inlet by means of a duct; the service fluid supply and/or filling chamber being located at the external periphery of a blade wheel in radial direction within the mean diameter d m ; said duct extending from the service fluid supply and/or filling chamber through the wall of one of the blade wheels to or through a blade of the blading in the direction of the mean diameter d m in the vicinity of the junction plane to the blade end.