Patent ID: 8795092

Claim:
An angular damping device ( 10 ) between a first coaxial shaft and a second coaxial shaft in a motor vehicle temporary wet coupling system, the angular damping device ( 10 ) comprising: a radial web ( 12 ) intended to be rotationally coupled to the first shaft; two radial guide washers ( 24 ) positioned axially one on each side of the web ( 12 ) and rotationally coupled to the second shaft; at least two first elastic members ( 38 ) with circumferential action circumferentially interposed in series between the radial web ( 12 ) and the guide washers ( 24 ); and a phase member ( 42 ) comprising at least two first radial phase lugs ( 48 ) circumferentially interposed between the two first elastic members ( 38 ) in series, the phase member ( 42 ) further comprising at least two friction pads, the at least two friction pads can be parted axially against each of the guide washers ( 24 ) by application of an axial clamping force; each of the at least two friction pads comprising a friction face ( 50 ) and at least one retaining face ( 54 ) for retaining at least one of the first elastic members ( 38 ) against the action of centrifugal force, the retaining faces ( 54 ) being axially arranged at a distance from one another and the first elastic member ( 38 ) being partially inserted between the two retaining faces ( 54 ) in the manner of a wedge, so that the axial component of the centrifugal force exerted on each of the retaining faces ( 54 ) by the first elastic member ( 38 ) clamps each of the friction faces ( 50 ) against the associated guide washer ( 24 ) with a dynamic clamping force.