US Patent 11927256 Torque converter

A torque converter includes a drive plate arranged to receive a torque. The torque converter further includes a front cover non-rotatably connected to the drive plate. The torque converter further includes a lock-up clutch including a piston and a clutch plate disposed between the piston and the front cover. The piston is axially slidable to engage the clutch plate. The torque converter further includes first and second seals each configured to seal the piston to the front cover. The first seal is arranged at an inner diameter of the piston, and the second seal is arranged radially outside of the first seal.