Torque Converter

The torque converter transmits and multiplies torque. The torque converter is a device which includes 4 elements:

• The impeller assembly
• The turbine assembly
• The reactor stator assembly
• The clutch and damper assembly

The standard torque converter components operate as follows:

• Rotation of the converter housing and impeller set the fluid in motion.
• The turbine reacts to the transmission fluid motion from the impeller, transferring rotation to the geartrain through the input shaft.
• The reactor stator redirects transmission fluid going back into the impeller, providing for torque multiplication.
• The clutch and damper assembly dampens powertrain torsional vibration and provides a direct mechanical connection for improved efficiency.
• Power is transmitted from the torque converter to the planetary gearsets and other components through the input shaft.

Fig 1: Identifying Torque Converter Components - Sectional View

Courtesy of FORD MOTOR CO.