The rotary housing of a hydrokinetic torque converter, which can be utilized in the power train of a motor vehicle--for example, in conjunction with a continuously variable transmission--contains a torque monitoring device which is installed in such a way that it does not take up any, or any appreci
The rotary housing of a hydrokinetic torque converter, which can be utilized in the power train of a motor vehicle--for example, in conjunction with a continuously variable transmission--contains a torque monitoring device which is installed in such a way that it does not take up any, or any appreciable, additional space, especially in the axial direction of the housing. The torque monitoring device can serve to transmit torque between the lockup clutch and the output element of the torque converter. Additional features reside in the provision, configuration and manner of mounting of an auxiliary mass, and in the provision of a member for centering the piston of the lockup clutch in the housing as well as a member for centering the housing on the output element of a prime mover.
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The rotary housing of a hydrokinetic torque converter, which can be utilized in the power train of a motor vehicle--for example, in conjunction with a continuously variable transmission--contains a torque monitoring device which is installed in such a way that it does not take up any, or any appreci
The rotary housing of a hydrokinetic torque converter, which can be utilized in the power train of a motor vehicle--for example, in conjunction with a continuously variable transmission--contains a torque monitoring device which is installed in such a way that it does not take up any, or any appreciable, additional space, especially in the axial direction of the housing. The torque monitoring device can serve to transmit torque between the lockup clutch and the output element of the torque converter. Additional features reside in the provision, configuration and manner of mounting of an auxiliary mass, and in the provision of a member for centering the piston of the lockup clutch in the housing as well as a member for centering the housing on the output element of a prime mover. ow relative thermal expansion between individual fragments. 2. The method of claim 1, wherein said multiple fragments each have an inscribed circle with a diameter of less than about 1.5 millimeters. 3. The method of claim 1 further comprising forming said aluminum alloy component into a brake disc. 4. The method of claim 1 further comprising forming said aluminum alloy component into a tappet. 5. The method of claim 1 further comprising forming said aluminum alloy component into a rocker arm. 6. The method of claim 1 further comprising forming said aluminum alloy component into a piston. 7. The method of claim 1 further comprising forming said aluminum alloy component into a connecting rod. 8. The method of claim 1, wherein said preparing said aluminum alloy component involves a pre-plating procedure. 9. The method of claim 8, wherein said pre-plating procedure comprises degreasing and acid etching said aluminum alloy component. 10. The method of claim 1, wherein said network of cracks is formed after said plating process is completed. 11. The method of claim 1, wherein said network of cracks is formed by plating said component with a layer of said wear resistant material having a sufficient thickness to induce cracking. 12. The method of claim 1, wherein said network of cracks is formed when said layer of said wear resistant material is plated to a sufficient thickness to induce cracking. 13. The method of claim 10, wherein said wear resistant material is an Fe alloy and said sufficient thickness is more than about 20 micrometers. 14. The method of claim 10, wherein said wear resistant material is an Fe--Cr alloy and said sufficient thickness is more than about 20 micrometers. 15. The method of claim 1, wherein said network of cracks is formed by applying a thermal load to said aluminum alloy component and said layer of wear resistant material. 16. The method of claim 15, wherein said thermal load is friction induced. 17. The method of claim 15, wherein said thermal load occurs in a heat treating process. 18. The method of claim 17, wherein said heat treating process involves heating said component to a temperature of about 500 degrees Centigrade for about 5 hours. 19. The method of claim 17, wherein said thermal load occurs in a surface hardening process. 20. The method of claim 19, wherein said surface hardening process is a nitrosulfurization process. 21. The method of claim 20, wherein said wear resistant layer has a thickness of between about 10 micrometers and 100 micrometers. 22. The method of claim 15, wherein said wear resistant layer and said aluminum alloy at least partially diffuse together when said thermal load is applied. 23. The method of claim 1, wherein said network of cracks is formed by burnishing. 24. The method of claim 23, wherein said network of cracks formed by burnishing is refined by applying heat sufficient to create a diffusion layer between said wear resistant layer and said aluminum alloy component. 25. The method of claim 24, wherein said heat is applied during a nitrosulfurization process. 26. The method of claim 1, further comprising forming an anticorrosive intermediate layer over said aluminum alloy component before plating said layer of a wear resistant material, wherein said layer of wear resistant material is plated over said anticorrosive intermediate layer. 27. The method of claim 1, wherein said step of forming said intermediate layer involves depositing. 28. The method of claim 1, wherein said wear resistant material is metallic. 29. An aluminum alloy part having a plated wear resistant surface, said part comprising an aluminum alloy substrate and a plated wear resistant surface covering at least a portion of said substrate, said wear resistant surface having a plurality of wear resistant surface fragments that are separated from one another by cracks that extend entirely through said plated wear resistant surface, said cracks forming a network of cracks that allow relative thermal
Illig Roland,DEX ; Schoder Bernd,DEX ; Schneider Ruthard,DEX, Housing component and friction surface structural assembly for a hydrodynamic clutch device and method for the production thereof.
Maingaud Daniel,FRX ; Arhab Rabah,FRX, Process for the assembly of a locking clutch for a hydrokinetic coupling device, especially for a motor vehicle, a corre.
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