What is a Torque Converter in a Transmission?

1 Answers
Kirsten
07/30/25 6:08am
Torque Converter is a component in automatic transmissions that transmits power from the engine flywheel, replacing the clutch in traditional manual transmissions. Working principle of torque converter: Fluid circulates within the chamber, where the impeller (pump), turbine, and stator are connected to the input shaft, output shaft, and housing respectively. When the prime mover (internal combustion engine, electric motor, etc.) drives the input shaft to rotate, the fluid flows out from the centrifugal impeller, sequentially passes through the turbine and stator, then returns to the impeller, circulating continuously. The impeller transfers the mechanical energy from the input shaft to the fluid. Components of a torque converter: The hydraulic torque converter (Fluid-Torque-Converter) consists of three hydraulic elements - impeller, turbine, and stator. It is installed between the engine and transmission, using automatic transmission fluid (ATF) as the working medium, serving functions of torque transmission, torque conversion, speed change, and clutch engagement.
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