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WHAT ÝS TORQUE CONVERTER?
A torque converter is a type of fluid coupling, which allows
the engine to spin somewhat independently of the transmission.
HOW TORQUE CONVERTERS WORKS
An engine is connected to a transmission by way of a clutch.
Without this connection, a vehicle would not be able to come
to a complete stop without killing the engine. But vehicles
with an automatic transmission have no clutch that disconnects
the transmission from the engine, instead, they use an amazing
device called a Torque Converter. Ýt may not look like much,
but there ara some very interesting things going on inside.
See the figure mentioned above. Oil from the transmission
hydraulic controls enters the torque converter through inlet
port (4) in carrier (10). Oil is directed to the inlet part
by a passage in the converter housing. From inlet port (4),
the oil goes through a passage in the hub. As impeller (2)
rotates, its acts as a pump to direct oil to turbine (8).
The turbine is bolted to a hub, which is connected to output
shaft (7) by splines. The turbine directs oil to stator (9),
which is held stationary. The stator is connected to carrier
(10) by splines. Carrier (10) is bolted to the torque converter
housing (12).
The oil goes through a passage in carrier (10) to outlet port
(11). From outlet part (11), oil is directed to the converter
outlet relief valve. All the oil from the outlet relief valve
goes to the oil cooler, where the temperature of the oil is
lowered. From the oil cooler, the oil is then sent to the
transmission where it is used to cool an lubricate the internal
components. |
