| 摘要 |
An impeller, a turbine, and a stator form a torus of a torque converter. A elliptic ratio L/H of an axial length L of the torus to a radial height H of the torus is 0.72 or smaller. A diameter ratio (D 2 /D 1 ) of an inner diameter D 2 of the torus to an outer diameter D 1 of the torus is 0.45 or greater. The impeller includes an impeller core, and an impeller axial length ratio (Lp/D 1 ) of an axial length Lp of the impeller core to the outer diameter D 1 of the torus is in a range between 0.030 to 0.045. The turbine includes a turbine core, and an turbine axial length ratio (Lt/D 1 ) of an axial length Lt of the turbine core to the outer diameter D 1 of the torus is in a range between 0.021 to 0.029.
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