Patent ID: 8418450

Claim:
A hydrodynamic torque converter, comprising: a housing configured to be filled with a fluid; an impeller arranged in the housing, the impeller comprising a plurality of impeller vanes successively arranged in circumferential direction around an axis of rotation; a turbine arranged in the housing, the turbine comprising a plurality of turbine vanes successively arranged in circumferential direction around the axis of rotation; and a stator arranged in the housing, the stator comprising a plurality of stator vanes successively arranged in circumferential direction around the axis of rotation, wherein the impeller, the turbine, and the stator form a fluid circulation torus having a torus diameter Td of the cross-section of the torus considered radially with respect to the axis of rotation, an outer radius Ra with respect to the axis of rotation, and a torus width B considered in direction of the axis of rotation, wherein the hydrodynamic torque converter satisfies at least one of: 0.25 <Td/Ra< 0.45, 0.25 <B/Ra< 0.45, zp> 35, where zp is the quantity of the plural impeller vanes, and zt> 31, where zt is the quantity of the plural turbine vanes, wherein: 0.8 <B /( Ra−Ri )<1.2, where Ri is an inner torus radius of the fluid circulation torus with respect to the axis of rotation.