Abstract: A hydrokinetic coupling apparatus for a motor vehicle including a crankcase (12), designed to link in rotation, about an axis X, an input shaft to an impeller wheel; a turbine wheel (18) designed to be linked in rotation to an output shaft (16) via hub (14) and a flange (24) transversely oriented extending radially outwards relative to the hub; a lockup clutch (28) coupling the input and output (16) shafts comprising a piston (30) for releasably connecting the turbine wheel (18) to a substantially transverse wall (20) of the crankcase (12) against which the piston (30) is urged to lock the coupling; and at least a friction stop (68) interposed axially between the turbine wheel (18) and the piston (30). A friction stop (68) is arranged radially beyond the outer periphery (100) of the flange (24).

Abstract: A hydrokinetic coupling appliance, in particular for a motor vehicle, comprising a housing (30) provided with a transverse wall (3), designed to be coupled in rotation to an input shaft, a turbine wheel (12) housed inside the housing (30) and integral with a hub (14), designed to be coupled in rotation to an output shaft, a first bearing (1) integral with the transverse wall (3) of the housing (30), a locking clutch interposed between said turbine wheel (3) and the transverse wall (13). A piston (4) carries a second bearing (2) extending opposite the first bearing (1) to be linked self-disengaging to the transverse wall, and wherein friction elements (60) operate between a transverse bearing (15) of the hub (14) and the piston (4), the piston (4) being shaped to bear the friction elements (60), and the hub (14) having an axially oriented annular portion (16) facing towards the transverse wall (3) and enclosed by the piston (4) mounted axially mobile relative to the annular portion.

Abstract: A hydrokinetic coupling apparatus for a motor vehicle including a crankcase (12), designed to link in rotation, about an axis X, an input shaft to an impeller wheel; a turbine wheel (18) designed to be linked in rotation to an output shaft (16) via hub (14) and a flange (24) transversely oriented extending radially outwards relative to the hub; a lockup clutch (28) coupling the input and output (16) shafts comprising a piston (30) for releasably connecting the turbine wheel (18) to a substantially transverse wall (20) of the crankcase (12) against which the piston (30) is urged to lock the coupling; and at least a friction stop (68) interposed axially between the turbine wheel (18) and the piston (30). A friction stop (68) is arranged radially beyond the outer periphery (100) of the flange (24).

Abstract: The invention concerns a hydrokinetic apparatus, in particular for motor vehicle, comprising a casing (10); a turbine wheel (16) secured in rotation to a hub (30); a lock-clutch comprising a piston (50) whereof the radially inner part (54) is mounted sliding along an outer cylindrical shaft (58) belonging to the central ring called piston (50, 54) whereof a rear end surface (64) extends opposite a transverse surface belonging to the turbine wheel (16)/hub (30, 86) assembly, and comprising stop means (84) axially interposed between the central ring and the turbine wheel/hub assembly. The invention is characterised in that are provided radial centering means for axial stop (84) relative to the hub (30, 5) or relative to the piston (50, 54) or relative to the web (104).

Abstract: The invention concerns an apparatus comprising a housing (12) with a radial wall (14) coupled with another input shaft, a turbine wheel (104) coupled with a hub (54) and an output shaft; and a lockup clutch comprising a piston (40); an annular friction disc (152) with global radial orientation, coupled in rotation with the turbine wheel (104)/hub (54) assembly and bearing on a first surface a first counter-track (210) co-operating with a first friction track (200) integral with the piston to define a first annular friction zone (Z1), and which bears on its second surface opposite to the first surface, a second counter-track (230) co-operating with a second friction track (220) integral with the radial wall (14) to define a second annular friction zone (Z2). The invention is characterized in that the first and second friction zones (Z1, Z2) are radially offset relative to each other.

Abstract: A hydrokinetic appliance (10), in particular for a motor vehicle, comprising a housing (12) provided with an annular axial wall (13) and a front transverse wall (18), wherein the housing (12) is designed to be linked in rotation to an input shaft, which includes a turbine wheel (40) housed inside the housing (12) and integral with a hub (46), capable of being coupled in rotation with an output shaft, and wherein a locking clutch comprises a rear piston (30) axially mobile relative to the front transverse wall (18) of the housing (12). The rear piston (30) is coupled in rotation to the annular axial wall (13) of the housing (12) by an axially resilient device (64).

Abstract: A coupling device including a turbine and an impeller with an intervening reactor including a reactor body whereof the central part is linked in rotation with the output shaft via an overrunning clutch having an outer ring, intermediate locking elements, and at least a directly mounted lateral flange, generally shaped like a transversely oriented washer axially immobilized relative to the central part of the reactor body and extending radially inwards so as to co-operate, by its internal periphery, with a portion opposite the inner ring to link the reactor body in axial translation and guide it rotation with the inner ring. An element having a general rod-like shape is provided which axially passes, at least partly, through the outer ring of the overrunning clutch or the reactor body, or extends axially inside the overrunning clutch.

Abstract: The invention concerns a hydrokinetic coupling apparatus comprising a wall (36) with globally transverse orientation and a central ring (52) along which the piston (50) is mounted sealingly sliding to define a control chamber (38) with variable volume, and comprising an annular disc (92) linking in rotation the piston (50) with the ring (52), which is axially arranged between the transverse wall and the piston (50), which is linked to the piston by elastically deformable tabs (90) and which comprises a central part (96) extending radially inwards opposite an inner surface (98) of the transverse wall (36) against which it is axially pressed and whereto it is fixed. The invention is characterised in that the ring (52) is axially secured to the central part (96) of the linking annular disc (92) relative to which the ring (52) is radially centered.

Abstract: The invention concerns a hydrokinetic coupling apparatus comprising a wall (36) with globally transverse orientation and a central ring (52) along which the piston (50) is mounted sealingly sliding to define a control chamber (38) with variable volume, and comprising an annular disc (92) linking in rotation the piston (50) with the ring (52), which is axially arranged between the transverse wall and the piston (50), which is linked to the piston by elastically deformable tabs (90) and which comprises a central part (96) extending radially inwards opposite an inner surface (98) of the transverse wall (36) against which it is axially pressed and whereto it is fixed. The invention is characterized in that the ring (52) is axially secured to the central part (96) of the linking annular disc (92) relative to which the ring (52) is radially centered.

Abstract: The invention concerns a hydrokinetic apparatus, in particular for motor vehicle, comprising a casing (10); a turbine wheel (16) secured in rotation to a hub (30); a lock-clutch comprising a piston (50) whereof the radially inner part (54) is mounted sliding along an outer cylindrical shaft (58) belonging to the central ring called piston (50, 54) whereof a rear end surface (64) extends opposite a transverse surface belonging to the turbine wheel (16)/hub (30, 86) assembly, and comprising stop means (84) axially interposed between the central ring and the turbine wheel/hub assembly. The invention is characterized in that are provided radial centering means for the axial stop (84) relative to the hub (30, 5) or relative to the piston (50, 54) or relative to the web (104).