Hydrodynamic component
a technology of components and components, applied in the direction of fluid couplings, gearings, instruments, etc., can solve the problems of disproportionately high expenditure, correspondingly high expenditure, correspondingly high expenditure, etc., and achieve the effect of minimal constructive expenditur
Inactive Publication Date: 2014-02-20
VOITH PATENT GMBH
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The aim of this invention is to simplify the detection of torque and the measurement of rotational speed in hydrodynamic components, while making minimal changes to the construction of the components. This will help to improve the overall efficiency of the components.
Problems solved by technology
The structure is comparatively expensive since one of the two elements of the hydrodynamic system must be supported with respect to a positionally fixed element and the forces required for the support must be measured in the region of this support.
A comparatively high constructive expenditure must be accepted for this and in particular a rotational movement of the supporting element must be possible, which for example in the case of a hydrodynamic retarder causes a correspondingly high expenditure.
In addition, at least in certain operating situations the supporting element must be in a non-rotating state since the measurement is only possible here.
In the case of a hydrodynamic converter or a hydrodynamic coupling, this is correspondingly expensive or in some cases not even possible.
Method used
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Embodiment Construction
[0030]in the diagram in FIG. 1, a very simply constructed hydrodynamic component 1 in the form of a retarder 1 can be identified in a schematic diagram. The hydrodynamic retarder 1 consists of a primary wheel 2 which is configured to be rotationally movable and which is disposed in a rotationally fixed manner on a shaft 3. The primary wheel of the hydrodynamic retarder 1 is also designated as rotor. The rotor 2 now has at its outer end a bladed region which together with a corresponding bladed region in a secondary wheel 4 forms a toroidal working chamber designated by 5. In the structure of the retarder the secondary wheel 4 is typically fixed and in the very simple exemplary embodiment shown here is designed to be integrated in a housing 6. The secondary wheel 4 is also designated as stator 4. The working chamber 5 of the retarder 1 is filled with a working medium, for example, the cooling water of a cooling circuit in the case of a water retarder or an oil as working medium whene...
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The invention relates to a hydrodynamic component comprising at least two elements which form a working chamber therebetween and which comprises a primary wheel and a secondary wheel. A working medium which can be introduced into the working chamber allows torque to be transmitted between said elements. At least one of the elements is arranged in a rotationally fixed manner on a shaft. The hydrodynamic component comprises a device for detecting a variable characterising at least directly the transmitted torque and / or the rotation of the shaft. According to the invention, the shaft is at least designed to have at least two sections which are at an axial distance from each other and which are made of a ferromagnetic material and is provided with a magnetic field which is rotationally stable with the respective section. Magnetic field sensors are arranged in areas corresponding to the at least two sections.
Description
BACKGROUND[0001]1. Technical Field[0002]The invention relates to a hydrodynamic component having the features defined in detail in the preamble of claim 1.[0003]2. Description of the Related Art[0004]A generic hydrodynamic component is described in the German Patent Specification DE 10 2005 052 105 B4. This patent is concerned with a hydrodynamic system which is configured with a device for detecting a torque or a variable characterizing this torque. The structure is comparatively expensive since one of the two elements of the hydrodynamic system must be supported with respect to a positionally fixed element and the forces required for the support must be measured in the region of this support. A comparatively high constructive expenditure must be accepted for this and in particular a rotational movement of the supporting element must be possible, which for example in the case of a hydrodynamic retarder causes a correspondingly high expenditure. In addition, at least in certain oper...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01D21/00
CPCF01D21/003F16D33/18F16D2300/18F16H41/24F16D57/04F16D66/00F16D2066/003F16D2066/005G01L3/102G01L3/10
Inventor SCHLOSSER, MARKUSLUHRS, THURSTENMENNE, ACHIMLAUKMANN, DIETERSCHADE, RAVIFOEHL, BRUNOKIBLER, JURGENEBERT, CHRISTIAN
Owner VOITH PATENT GMBH