Patent ID: 9702445
Date: 2017-07-11
CPC Classifications: F16H

Claim:
1. A torque converter that transmits torque inputted from a front cover to a member on a transmission side, the torque converter having a torus, the torque converter comprising: a torque converter main body having an impeller, a turbine having a turbine shell, and a stator, the torus being formed by blades of the impeller, the turbine and the stator; a lockup device configured to connect mechanically the front cover and the turbine together, the lockup device including the first spring diameter being from the axis of the torque converter to the center of the first outer peripheral-side torsion spring, the second spring diameter being from the axis to a center of the inner peripheral-side torsion spring, the first spring diameter being equal to or larger than an outer diameter being from the axis to an outermost part of the torus, the second spring diameter being equal to or smaller than an inner diameter being from the axis to an innermost part of the torus.