Patent ID: 7757827
Filing Date: 2010-07-20
Classification: F16H

Abstract:
1. A lockup clutch for a torque converter, comprising: a front cover, a piston, and a friction lining that is divided into a radially-outer-side friction lining and a radially-inner-side friction lining, wherein μ-ν characteristics of said radially-outer-side friction lining have a positive gradient to inhibit occurrence of a shudder which takes place by a stick-slip, wherein said radially-inner-side friction lining is equipped with a large coefficient of static friction to provide large torque capacity during a clutch engagement, wherein said radially-outer-side friction lining is bonded on a side of said piston in said lockup clutch, wherein said radially-inner-side friction lining is bonded on a side of said front cover in said lockup clutch, and wherein said radially-outer-side friction lining is thicker than said radially-inner-side friction lining.