초록 ▼

In a hydraulic torque converter having a torus of flatness ratio (L/H) within the range 0.82-0.9, the outer and inner contours of the turbine in a meridional plane through the axis of the turbine each comprises a combination of a plurality of circular arcs, wherein the ratios between the radii of th

In a hydraulic torque converter having a torus of flatness ratio (L/H) within the range 0.82-0.9, the outer and inner contours of the turbine in a meridional plane through the axis of the turbine each comprises a combination of a plurality of circular arcs, wherein the ratios between the radii of the circular arcs constituting said outer contour is substantially less than 2, and the ratios between the radii of the circular arcs constituting said inner contour is substantially less than 2. As a result, fluid flows through the turbine stably without being biased, increasing the velocity of relative flow along the turbine blade, and raising the normal speed ratio at which the absolute flow is in the direction of no impact, enabling a higher stall torque ratio without reduction in efficiency.

대표청구항 ▼

A hydraulic torque converter comprising an impeller, , turbine, blades and stator having a flattened torus compressed in an axial direction, the ration (L/H) between axial length (L) and radial height (H) of the torus being substantially less than 0.9, said impeller and turbine in a meridional plane

A hydraulic torque converter comprising an impeller, , turbine, blades and stator having a flattened torus compressed in an axial direction, the ration (L/H) between axial length (L) and radial height (H) of the torus being substantially less than 0.9, said impeller and turbine in a meridional plane through the axis of the torus having outer and inner contours formed of a combination of a plurality of circular arcs, ratios between the radii of the circular arcs constituting said outer contour being substantially in the range of 1.21-2.0 and ratios between the radii of the circular arcs constituting said inner contour being substantially less than 2, said outer and inner contours being connected together by means of the blades.