Patent ID: 6880330
Filing Date: 2005-04-19
Classification: F16H

Abstract:
1. A torque converter comprising: 1) a pump impeller connecting to an input shaft; 2) a turbine runner opposed to the pump impeller and connecting to an output shaft; and 3) a stator disposed between an inlet of the pump impeller and an outlet of the turbine runner, by way of a one way clutch which allows a one way rotation, wherein the torque converter is configured to transmit a power by circulating a fluid through the pump impeller, the turbine runner and the stator, wherein the torque converter defines an ellipticity, which is an outermost length of the torque converter in an axial direction divided by an outermost diameter of the torque converter in a radial direction, wherein the ellipticity is ≦0.23, and wherein when a first area ratio A, a second area ratio B and a third area ratio C are respectively defined as follows: the first area ratio A is in a following first range: 0.23<A≦0.45, the second area ratio B is in a following second range: 0.23<B≦0.45, and the third area ratio C is in a following third range: 0.15 ≦C<0.23.