Function of Torque Converter
As a result of centrifugal force, the input rotor (P) delivers the oil through the input rotor vanes outwards to the output rotor (T) and drives it. The output rotor vanes deflect the oil to the stator vanes which in turn supply the-oil to the input rotor (P) Arrows. An increase in torque occurs due to this deflection at the stator (L) which is supported against the transmission housing via the freewheel. The torque conversion reaches its maximum value around the factor 1.8 to 2.0 at maximum difference in speed between the input rotor (P) and output. rotor (T) and drops to a torque ratio of 1:1 as the speeds are increasingly equalized. From this operating point, also known as the coupling point, the stator (L) rotates with the input rotor (P) and output rotor (T).
An efficiency of up to 98% is reached in the coupling range.
The oil in the torque converter is replaced constantly so that the heat generated in the operating phase can be dissipated via the transmission oil cooler.