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1. (WO2010121790) HYDRODYNAMIC MACHINE

Pub. No.:    WO/2010/121790    International Application No.:    PCT/EP2010/002424
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Thu Apr 22 01:59:59 CEST 2010
IPC: F16D 33/20
F16H 41/26
Applicants: VOITH PATENT GMBH
MIDDELMANN, Volker
HÖLLER, Heinz
KÄMMERER, Steffen
KERNCHEN, Reinhard
SCHLOSSER, Markus
SCHIPS, Rainer
HORLACHER, Bernd
SEUBERT, Jonas
Inventors: MIDDELMANN, Volker
HÖLLER, Heinz
KÄMMERER, Steffen
KERNCHEN, Reinhard
SCHLOSSER, Markus
SCHIPS, Rainer
HORLACHER, Bernd
SEUBERT, Jonas
Title: HYDRODYNAMIC MACHINE
Abstract:
The invention relates to a hydrodynamic machine, particularly a hydrodynamic coupling, - having a primary wheel and a secondary wheel, which together form a toroid working space that is fillable or filled with working medium for the hydrodynamic power transmission from the primary wheel to the secondary wheel; wherein - the primary wheel and the secondary wheel are provided with a plurality of blades, which in a radial direction of the wheels extend from an inside diameter of the working space up to an outside diameter of the working space, and in an axial direction of the wheels extend from one free blade end facing the blades of the other wheel up to a working space bottom at a mean diameter of the working space. The invention is characterized in that - the inside diameter and/or the outside diameter of the working space in precisely one wheel, or in both wheels, over the circumference of the wheel, in combination with the extension of the blades in a radial direction, varies such that the blades of said wheel at the free blade ends thereof have three or more different lengths in a radial direction, and/or - that the distance in an axial direction from the free blade end up to the working space bottom at a mean diameter of the working space, together with the extension of the blades in axial direction, in precisely one wheel, or in both wheels, varies over the circumference of the wheel.