Hydrodynamic clutch

A technology of hydraulic coupling and coupling, applied in the direction of clutch, clutch, fluid clutch, etc.
CN101688570AActive Publication Date: 2010-03-31VOITH PATENT GMBH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
VOITH PATENT GMBH
Publication Date
2010-03-31

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Abstract

The invention relates to a hydrodynamic clutch with a constant or variable filling of working medium, - having a pump wheel comprising a pump wheel blade arrangement, and - having a turbine wheel comprising a turbine wheel blade arrangement; - the pump wheel and turbine wheel together form a toroidal working chamber which, for torque transmission, can be filled with the working medium; - having anaccumulating chamber for receiving working medium from the working chamber, wherein the accumulating chamber is connected in a working-medium-conducting fashion to the working chamber; - the workingmedium can be conducted from the accumulating chamber into the working chamber in order to increase the transmissible torque, and from the working chamber into the accumulating chamber in order to reduce the transmissible torque. The hydrodynamic clutch is characterized in that the ratio of the volume of the working space to the installation volume of the hydrodynamic clutch is greater than 0.26,wherein the installation volume of the hydrodynamic clutch is defined by a cylinder volume which has a constant diameter and whose outer diameter corresponds to the maximum outer diameter of the hydrodynamic clutch and whose axial length corresponds to the maximum axial extent of the hydrodynamic clutch.
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Description

technical field

[0001] The invention relates to a hydrodynamic coupling with a constant or variable filling degree according to the preamble of claim 1 . Background technique

[0002] The skilled person distinguishes between hydraulic couplings with a constant filling degree and couplings that can be filled and emptied. In the last-mentioned coupler, depending on the desired filling state, the working medium is fed from the outer circuit into the working chamber of the coupler or out of it, while in the first-mentioned coupler the working medium is always left in the coupling within the device. This leads to structural problems on two fronts: First, a storage chamber must be provided within the coupler, which contains a working medium which, due to the desired operating state, should not remain in the working chamber. Furthermore, the working medium heated by fluid friction cannot be cooled in the external heat exchanger, as is usually arranged in the external working medi...

Claims

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