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GENERAL INFORMATION
PRINCIPLES OF OPERATION
The torque
converter
is a hydraulic
clutch system which provides
a flexible,
automatic
link between
the
engine
and the automatic
transmission
mechanism.
Its method
of operation
can be divided
into 2 stages.
WHEN STARTING
It multiplies
the engine
torque.
THIS IS THE
CONVERTER FUNCTION
AT HIGH SPEED
It transmits
the engine
torque.
THIS IS THE
COUPLING FUNCTION
The CONVERTER body contains
3 wheels
with
vanes.
THE CONVERTER
=
THE TURBINE
+
THE STATOR
+
THE IMPELLOR
'--,.....------...
y
Crankshaft
Turbine
Stator
Impeller
Free Wheel
Turbine
Shaft
Body
- The
converter
BODY
consists
of
2 half-shells
welded
together.
It is coupled
to the
engine
CRANKSHAFT by the DRIVE PLATE. In operation
it
is full
of fluid.
- The IMPELLOR is integral
with the converter
body
and hence with
the engine.
- The TURBINE is linked
with
the
CLUTCH/BRAKE
UNIT
of
the
automatic
transmission
by
the
TURBINE SHAFT.
• The STATOR is located
between
the impeller
and
the turbine.
- The STATOR rests on the free wheel.
F1-13
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