Torque Converter: Description and Operation
DESCRIPTIONThe CD4E torque converter is a four-element assembly. It contains an impeller, a turbine, a reactor and a torque converter clutch (TCC) for increased fuel economy.
IMPELLER AND COVER
The impeller and cover assembly drives the impeller blades and pump assembly. The impeller is primarily responsible for driving the turbine with hydraulic fluid by means of centrifugal force. The cover provides a mating surface for the torque converter clutch piston and damper assembly.
TURBINE
The turbine is driven by centrifugal fluid force from the impeller. The turbine transmits input torque to the drive chain and driven sprocket through the turbine shaft.
REACTOR
The reactor redirects fluid flow from the turbine back to the impeller so that fluid rotates in the same direction as the impeller. This action also assists in torque multiplication.