RAM 3500 Chassis Cab Truck 2WD L6-6.7L DSL Turbo (2010)
Torque multiplication is achieved by locking the stator's one-way clutch to its shaft. Under stall conditions (the turbine is stationary), the oil leaving the
turbine blades strikes the face of the stator blades and tries to rotate them in a counterclockwise direction. When this happens the one-way clutch of the
stator locks and holds the stator from rotating. With the stator locked, the oil strikes the stator blades and is redirected into a "helping" direction before it
enters the impeller. This circulation of oil from impeller to turbine, turbine to stator, and stator to impeller, can produce a maximum torque multiplication
of about 2.4:1. As the turbine begins to match the speed of the impeller, the fluid that was hitting the stator in such as way as to cause it to lock-up is no
longer doing so. In this condition of operation, the stator begins to free wheel and the converter acts as a fluid coupling.
Stator Operation
TORQUE CONVERTER CLUTCH (TCC)
In a standard torque converter, the impeller and turbine are rotating at about the same speed and the stator is freewheeling, providing no torque
multiplication. By applying the turbine's piston and friction material to the front cover, a total converter engagement can be obtained. The result of this
engagement is a direct 1:1 mechanical link between the engine and the transmission.
The clutch can be engaged in second, third, fourth, fifth and, sixth gear ranges.