Torque Converter Construction: Outline

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The RC4A-EL type torque converter adopts a TCC mechanism.
The TCC mechanism mechanically engages the pump impeller and the turbine runner under certain conditions, and transmits the power, not through the fluid, but directly, preventing the slip loss of the torque converter.
The torque converter has obtained sufficient transmission efficiency and torque converting ratio to match the output characteristics of the engine.

Fig 1: Identifying Torque Converter Construction

Courtesy of MAZDA MOTORS CORP.