Mazda RX-8 2004 Service Highlights page 312

TORQUE CONVERTER OUTLINE
• 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.
End Of Sie
OIL PUMP FUNCTION
• The lightweight, compact, quiet trochoid gear oil
pump feeds oil to the torque converter, lubricates
the powertrain, and feeds oil to the hydraulic
control system.
End Of Sie
AUTOMATIC TRANSMISSION
ONE-WAY CLUTCH
OIL PUMP COVER
OIL PUMP HOUSING
INNER ROTOR
PUMP IMPELLER
STATOR
OUTER ROTOR
INNER ROTOR
OUTER ROTOR
CHU051319100S01
TCC PISTON
TURBINE RUNNER
05–13
OIL
COOLER
CHU0513S014
CHU051319220S01
OIL PUMP
HOUSING
OIL PUMP COVER
CHU0513S029
05–13–21