Patent ID: 6079530
Filing Date: 2000-06-27
Classification: F16H

Abstract:
A hydrokinetic coupling apparatus, comprising a generally transversely orientated wall (2), which is adapted to be coupled in rotation to a driving shaft and which carries a guide ring (6) fastened centrally on said wall, a piston (9) which is sealingly mounted for axial movement along the guide ring (6) and which defines, with said ring (6) and said transverse wall (2), a variable volume chamber (30) which is bounded on the outside by a disc (10), and friction liners (11) adapted to be gripped, respectively, between the piston (9) and the disc (10) and between the disc (10) and the transverse wall (2), each friction liner (11) being fixed to one of the elements consisting of the disc (10) and, respectively, the piston (9) and the transverse wall (2) between which the liner is adapted to be gripped, wherein abutment means (50), facing towards the transverse wall (2) and carried by the transverse wall (2), are provided for limiting the movement of the piston (9) in a direction away from the transverse wall (2), and wherein said abutment means (50) are fitted within said variable volume chamber (30).