Patent ID: 9551237
Date: 2017-01-24
CPC Classifications: F01D,F16H

Claim:
1. A vehicular fluid power transmitting device comprising: a pump impeller that has a plurality of pump blades inside of a pump shell to which torque from a drive source is input; a turbine runner that has a plurality of turbine blades provided in positions opposite the pump blades, and a hub portion that supports the turbine blades, the turbine runner supported by a shaft end portion of an output shaft and rotated by receiving operating fluid pushed out by the pump blades; a damper device that is provided between the drive source and the pump shell in an axial direction of the output shaft, has a damper input member, an elastic member and a damper output member, and suppresses pulsation of torque transmitted from the drive source to the pump shell, the damper input member connected to the drive source, the elastic member housed inside the damper input member, and the damper output member connected to the pump shell; an annular set member to which the damper output member is connected, the annular set member fixed to the pump shell; and a bearing assembly via which the damper input member is relatively rotatably supported by the annular set member, wherein: the damper output member has a first radially outer portion and a radially inner portion; torque from the damper input member is transmitted to the first radially outer portion via the elastic member; the radially inner portion is fixed to an end surface, on a drive source side, of the annular set member in the axial direction; the damper input member has a second radially outer portion and a cylindrical boss portion; the elastic member and the first radially outer portion are housed within the second radially outer portion; the cylindrical boss portion is curved so as to reach farther toward a radially inner side than the radially inner portion; the bearing assembly is fitted in between a radially outer surface of the cylindrical boss portion and a radially inner surface of the annular set member; and the bearing assembly is fitted to the radially inner surface of the annular set member, as well as fitted to a radially inner surface of the radially inner portion.