Various torque converters are installed on Opel cars. All of them have a marking on the end, which indicates the compatibility of the transformer with a gearbox of the same marking.
The torque converter is located between the engine and the gearbox and serves to transmit torque from the engine to the gearbox through the hydrodynamic movement of the flow of the working fluid. To do this, the engine drives the torque converter oil pump. The pump wheel, which is also the casing of the transformer, converts the energy of the engine into the kinetic energy of the working fluid, which acts on the turbine wheel.
The pump and turbine wheels rotate at different speeds. Therefore, for example, when starting off, the transformation ratio is very high, after which it decreases with an increase in the speed of the turbine wheel. However, even at high speeds there is a certain «slip» liquids. Even at high engine speeds, only 85% of the torque is transmitted to the gearbox shaft. Therefore, engines equipped with an automatic transmission consume slightly more fuel than engines with a manual transmission. This drawback is eliminated with the help of a blocking clutch.
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