Patent ID: 8205734

Claim:
A friction disk for a wet-running clutch in a motor vehicle, the friction disk comprising: a lining carrier ring having opposed faces and connecting areas for connecting to one of a drive side and a takeoff side of a clutch; and a plurality of circumferentially adjacent friction lining elements on at least one face of the carrier ring, said plural friction lining elements being separated by fluid flow channels, each friction lining element having a groove arrangement that deviates from a straight line extending from a radially inner side of the friction lining element to a radially outer side of the friction lining element that has: a first groove section that extends perpendicularly from the radially inner side to a first inner end; a second groove section that extends perpendicularly from the radially outer side to a second inner end; at least one third groove section circumferentially offset from the first and second groove sections that extends radially between respective offset circumferential locations of the first and second inner ends of the first and second groove sections; and at least two fourth groove sections extending circumferentially that connect the respective first and second inner ends of the first and second groove sections to respective ends of the at least one third groove section, the fourth groove sections extending circumferentially beyond the at least one third groove section towards a respective circumferential edge of the friction lining element.