PUMP GP-SWING 1057281 - Caterpillar

Illustration 1 g03674047
Torque Converter
(1) Housing
(2) Flex plate
(3) Turbine
(4) Impeller
(5) Stator
(6) Stator clutchThe torque converter consists of the following four main parts: housing (1), impeller (4), turbine (3), and stator (5). The housing is connected to the engine flywheel through flex plate (2). Impeller (4) and housing (1) are connected. The impeller and the housing turn with the engine flywheel at engine speed. Turbine (3) turns the transmission input shaft. Stator (5) is installed on the stationary stator support. Impeller (4), which turns with housing (1) at engine speed, directs the oil toward the outside of the impeller and against the blades of turbine (3). The force of the oil that is hitting the turbine blades causes the turbine (3) and the transmission input shaft to rotate. The rotation of the transmission input shaft provides power to the transmission.Oil returns through the stator vanes to the impeller. The stator vanes direct the oil back to the impeller, causes a torque increase. When the speed of the turbine (3) and the speed of the impeller (4) are equal, the stator clutch (6) permits the stator to turn freely with the rotation of the engine for more efficiency. When turbine torque is greater than impeller torque, the stator is locked in place. Torque is multiplied only when the stator is held in place.