Device for sealing a component housing in a motor-vehicle drive train
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsWerner Schiek, Nils Sauvlet, Immo Stache
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Abstract
A component housing in a motor-vehicle drive train is sealed by pressurization of the housing interior. The component is a hybrid module (1) comprising at least one electric machine provided between the combustion engine (VM) and the gearing (G) of the motor-vehicle drive train. The pressurization is achieved by a rotating component (R, RA, M, F) of the hybrid module. The rotating component is designed in a manner similar to an impeller of a centrifugal pump. Therefore, rotation of the component builds up a positive pressure (P) on the radially outer region of the rotating component in the region of the housing (GE) in the interior of the hybrid module.
Claims15
A device for sealing a housing of a component in a motor-vehicle drive train by pressurization of an interior of the housing, characterized in that the component is a hybrid module comprising at least one electric machine provided between a combustion engine and gearing of a drive train of the motor-vehicle, the hybrid module having at least one rotating component configured as an impeller of a centrifugal pump, so that rotation of the rotating component achieves pressurization in the housing and builds up a positive pressure on a radially outer region of the rotating component in proximity the housing in the interior of the hybrid module.
A device for sealing a component housing in a motor-vehicle drive train by pressurization of the housing interior, characterized in that the component is a hybrid module comprising at least one electric machine and at least one hydraulic clutch with a hydraulic cylinder that is activatable by a spindle actuator, the hybrid module being provided between a combustion engine and gearing of the motor vehicle drive train, the pressurization being provided by means of air displaced by hydraulic fluid during a return of the hydraulic cylinder of the actuator.
A device for sealing a housing of a hybrid module provided between a combustion engine and gearing of a drive train of a motor-vehicle, the device comprising:
- at least one rotating component in the housing, the rotating component being configured so that rotation of the rotating component builds up pressure on a radially outer region of the rotating component in proximity the housing in an interior of the housing of the hybrid module to define a positive pressure on a radially outer region of the rotating component that exceeds pressure outside the housing.
Dependencies are inferred from the claim text.