Patent ID: 7533525

Claim:
A hydrodynamic torque converter comprising a driving pump wheel, a driven turbine wheel and a guide wheel ( 1 ; 41 ), which has guide wheel blades ( 6 - 8 ; 47 , 48 ), said hydrodynamic torque converter being characterized in that the guide wheel blades ( 6 - 8 ; 47 , 48 ) are attached to the guide wheel ( 1 ; 41 ) such that they can move between a throughflow position and a guide position, and wherein the blades are operatively arranged so that the blades pivot from the throughflow position to the guide position as a result of a medium stream in the torque converter directly acting against a front surface ( 11 ) of the blades, and the blades pivot from the guide position to the throughflow position by the medium stream directly acting against a rear surface ( 12 ) of the blades, and wherein the medium stream is unobstructed by the blades when the blades are arranged in the throughflow position.