Torque Converter: Operation: Operation: Notes
WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The torque converter transmits engine torque to the transmission. When it is not locked up, it transmits the torque by means of oil. When it is locked up, it transmits the torque by means of the lockup piston.
The lockup damper is designed to soften the impact as the torque converter locks up.
The torque converter is a 3-element, single-stage, 2-phase type.
The term 'single-stage' indicates that there is 1 turbine runner (output element). The term '2-phase' indicates that the mechanism works as a torque converter when the turbine runner is turning slowly relative to the pump impeller and as a fluid coupling when the turbine runner is turning quickly relative to the pump impeller.
| 1 - LOCK - UP DAMPER | 5 - TURBINE RUNNER |
| 2 - CONVERTER FRONT COVER | 6 - STATOR |
| 3 - LOCK - UP PISTON | 7 - ONE - WAY CLUTCH |
| 4 - PUMP IMPELLER |