LR3/Disco 3
redirect the returning fluid from the turbine, changing its direction to that of the impeller.
The redirected fluid from the stator is directed at the inner row of blades of the impeller, assisting the engine in turning the
impeller. This sequence increases the force of the fluid emitted from the impeller and thereby increases the torque
multiplication effect of the torque converter.
Stator Functions
NOTE :
Refer to the 'Stator Functions' illustration
Fluid emitted from the impeller acts on the turbine. If the turbine is rotating at a slower speed than the fluid from the
impeller, the fluid will be deflected by the turbine blades in the path 'A'. The fluid is directed at and deflected by the stator
blades from path 'B' to path 'C'. This ensures that the fluid is directed back to the pump in the optimum direction. In this
condition the sprag clutch is engaged and the force of the fluid on the stator blades assists the engine in rotating the
impeller
As the rotational speed of the engine and therefore the turbine increases, the direction of the fluid leaving the turbine
changes to path 'D'. The fluid is now directed from the turbine to the opposite side of the stator blades, rotating the stator
in the opposite direction. To prevent the stator from resisting the smooth flow of the fluid from the turbine, the sprag clutch
releases, allowing the stator to rotate freely on its shaft.
When the stator becomes inactive, the torque converter no longer multiplies the engine torque. When the torque
Typical
stator
shown
Item Part Number
Description
1
-
Blades
2
-
Stator held – fluid flow redirected
3
-
Stator rotates freely
4
-
Roller
5
-
Converter at coupling speed
6
-
Fluid flow from turbine
7
-
Converter multiplying
8
-
Fluid flow from impeller
9
-
Drive from engine
10
-
Impeller
11
-
Stator
12
-
Turbine
13
-
Output to transmission
