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    • 10. 发明专利
    • DE19934405A1
    • 2001-02-08
    • DE19934405
    • 1999-07-22
    • DAIMLER CHRYSLER AG
    • BENDER JENSHENTRICH CORNELIUSKOELL JANMAYER THEODORPAASCH RUDOLFREINHARDT RUDOLFZECHMANN HANS
    • F01L1/047F01L1/46F16C3/02
    • The invention relates to a hollow shaft having several separate axially overlapping inner channels, especially media channels for lubricating and pressurized oil, extending in the interior of the hollow shaft and connected in defined areas to the outer wall of the hollow shaft by means of inlet and/or outlet channels. To this end, a molded body is disposed in the interior of the hollow shaft which is firmly connected to the hollow shaft. Said hollow shaft and molded body are embodied in such a way that channel-like cavities extending in an overlapping area in axial direction of the hollow body and covering said overlapping area are formed between the outer wall of the molded body and the inner wall of the hollow shaft. The molded body also has connecting surfaces in the overlapping area which extend in axial direction of the hollow shaft and in which the molded body is firmly and tightly connected to the inner wall of the hollow shaft. Different tubular cavities are thus separated from one another in the overlapping area by the connecting surfaces on the molded body in such a way that several separate media channels exist in the overlapping area in the hollow shaft.