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How Does it Work /
Torque Converter
How a Torque Converter Works
The torque converter is designed to act as a fluid coupler that can engage and
disengage with the increase and decrease of engine rpm. When the vehicle is not
in motion while the engine is running the torque converter is in action. The torque
converter converts fluid pressure to lock the converter output shaft. Once the shaft
has locked the transmission receives engine power. At minimum engine rpm fluid pressure
is low and the torque converter allows the engine to "freewheel" from the transmission.
When the converter receives the power from the engine it transfers power to the
transmission. The torque converter also has the ability to multiply torque when
the engine is under power by multiplying fluid pressure through a component called
a stator.
Torque Converter Stator
The stator allows the smooth transition from standing still to motion of the
vehicle. The torque converter is filled with automatic transmission fluid pumped
in from the fluid pump of the transmission. There is a measured amount of heat generated
by the torque converter. This is why a
transmission fluid cooler is necessary, usually installed inside the
engine radiator. Most torque converters are equipped with a clutch that has
the ability to lock up as the vehicles reaches cruising speeds. The clutch is activated
by a fluid control solenoid inside the transmission that is activated by the
ECM
. Transmission fluid passes through the torque converter and needs to be as
clean as possible to ensure proper operation and limit malfunctions. Always
observe
manufacturers recommended
transmission service intervals.
How Does it Work
/ Torque
Converter
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