Hydraulic torque converter

Claim 1

AN HYDRAULIC TORQUE CONVERTER OF THE SINGLE STAGE TYPE COMPRISING A ROTATABLE, BLADED IMPELLER, A ROTATABLE, BLADED TURBINE AND A BLADED STATOR ARRANGED TO FORM A TOROIDAL LIQUID CIRCUIT, THE IMPELLER BEING LOCATED IN THE OUTWARD FLOW PART OF THE CIRCUIT AND THE TURBINE AND STATOR BEING LOCATED IN INWARD FLOW PART OF THE CIRCUIT WITH THE OUTLETS OF THE TURBINE BLADES BEING DISPOSED CLOSELY ADJACENT THE INLETS OF THE STATOR BLADES, THE OUTLETS AND INLETS OF THE IMPELLER AND TURBINE AND THE OUTLETS AND INLETS OF THE STATOR AND IMPELLER BEING RESPECTIVELY CONNECTED BY U-SHAPED, OUTER AND INNER, UNBLADED PASSAGES, THE RADIAL DIMENSION OF EACH TURBINE BLADE BEING SUBSTANTIALLY GREATER RESPECTIVELY THAN THE MEAN AXIAL DIMENSION OF SAID TURBINE BLADE AND THAN THE RADIAL DIMENSION OF EACH STATOR BLADE AND THE RADIAL DIMENSION OF EACH STATOR BLADE BEING SUBSTANTIALLY LESS THAN THE AXIAL DIMENSION THEREOF, THE NUMBER OF IMPELLER, TURBINE AND STATOR BLADES RANGING RESPECTIVELY FROM 18 TO 24 TO 30, AND 40 TO 48, AND THE INLET AND OUTLET ANGLES OF EACH BLADE AT THE MEAN STREAM FLOW LINE OF THE CIRCUIT ARE MEASURED RESPECTIVELY BETWEEN THE TANGENTS TO THE MEAN CAMBER LINE OF THE BLADE AT ITS INLET AND OUTLET TIPS AND THE TANGENTS TO CIRCLES DETERMINED BY THE RADII OF THE INLET AND OUTLET TIPS OF THE BLADE, THE IMPELLER AND TURBINE BLADES AND THE STATOR BLADES BEING INCLINED COUNTER TO AND IN THE ROTATION DIRECTION OF THE IMPELLER, RESPECTIVELY, THE INLET AND OUTLET ANGLES FOR THE IMPELLER RANGING FROM 25* TO 48* AND 36* TO 90*, RESPECTIVELY, FOR THE TURBINE FROM 32* TO 65* AND 22* TO 35*, RESPECTIVELY, AND FOR THE STATOR FROM 74* TO 85* AND 29* TO 39*, RESPECTIVELY.