Torque Converter: Description and Operation

DESCRIPTION
In a torque converter, engine torque is transferred to the transaxle through the oil contained in the torque converter.

Fluid Link Coupling (FLC)
This torque converter has a fluid coupling which connects the engine to the gear train. In certain operating conditions, it multiplies torque by providing an extra reduction to match the engine output to the driveshaft. All gear ranges with the FLC, engine torque is 100 percent hydraulically transmitted.

OPERATION
The converter acts as an automatic clutch with the engine mechanically driving the impeller which, in turn, drives the turbine hydraulically. The hydraulically driven turbine is the transaxle drive input member. It is the hydraulic connection between the impeller and the turbine where a certain amount of engine torque is lost to converter slip.

CONSTRUCTION
To minimize this converter inefficiency, the ATX converter contains a splitter gear to provide a mechanical connection between the engine and transaxle. The splitter gear set is very similar to a planetary gear set