Friction clutch, especially a torque converter lockup clutch for a hydrodynamic torque converter

摘要

A slipping friction clutch which has at least on a pair of wet-running friction areas, especially a slipping converter bridging clutch for the hydrodynamic torque of a motor vehicle automatic transmission. In the state under the action of pressure, the two friction areas seal off the radially outward lying high pressure chamber against the radially inward lying lower pressure chamber, whereby at least one of the friction areas has oil-conducting depressions whose ends spaced from one another are directly hydraulically connected with the one of the two pressure chambers and which are configured such that, with a slipping friction coupling, the friction area sliding peripherally exerts a drag action owing to which an oil through flow is induced as a function of the slippage rotational speed which cools the friction area.