Power transmission device for torque converter

摘要

It is an object of the present invention to achieve reduction in size and weight of, and inhibition of axial size increase of, a power transmission device for a torque converter including a turbine functioning as an inertia element. The power transmission device includes a torque transmission plate fixed to a turbine, a damper mechanism disposed between a front cover and the turbine, and an engaging part. The damper mechanism elastically couples the torque transmission plate and a transmission-side member. The engaging part couples the torque transmission plate and the damper mechanism on a radially inner side of a torus center C of a torque converter main body.

主权项

1. A power transmission device for a torque converter, the power transmission device disposed between a torque converter main body having a torus center and a front cover coupled to an engine-side member, the power transmission device configured to transmit torque outputted from a turbine of the torque converter main body to a transmission-side member, the power transmission device comprising:
an output member fixed to the turbine; a damper mechanism disposed between the front cover and the turbine, the damper mechanism elastically coupling the output member and the transmission-side member, the damper mechanism including first and second elastic members, first and second input plates and an output-side member disposed between the first and second input plates in an axial direction, the second elastic member being disposed radially inwardly of the first elastic member, the first input plate being connected to the output member and the output-side member being connected to the transmission-side member; an engaging part coupling the output member and the damper mechanism on a radially inner side of the torus center, the engaging part being disposed between the torus center and a center of the second elastic member; and a clutch member disposed between the front cover and the damper mechanism, the clutch member being directly coupled to the first and second input plates such that the clutch member is axially movable and non-rotatable relative to the first and second input plates.