The present invention relates to a torsional damper for a hybrid vehicle structure is provided which is arranged between the vehicle engine and transmission while absorbing a torsional vibration of the flywheel has a function to prevent oil leakage contained therein.
First retaining plate the hybrid vehicle torsional damper of the invention, is connected to the inertia plate, the inertia plate which is coupled to an output shaft of an engine coupled to the cover plate, the inertia plate forming the space accommodate oil to the inside of which rotate integrally, second retaining plate, a first retaining plate and the second retaining are arranged in the circumferential direction on the plate a plurality of the compression coil to absorb vibration and shock in the rotational direction is coupled integrally to the inertia plate and the first retaining plate spring, a first retaining plate and the second retaining is disposed between the plates a plurality of splined hub which is coupled to the driven plate, the driven plate to be elastically supported in the compression coil spring transmits the driving force to the transmission, and the inertia plate and the cover in the space plate forms containing the leakage blocking means for blocking the oil that leaks, leakage cut-off means are arranged on the outer circumference to leak shut-off member, a spline hub arranged to be positioned in close contact with the inner peripheral surface side of the cover plate covers the leakage blocking member It includes a disk spring for urging the side plate.