It had been first launched in 1939 for cars. It contains the fluid coupling and three planetary gears. They collectively make three forward and a person reverse speed. There isn't a clutch for engagement and disengagement in the motor. Torque converter does a similar operate that the clutch does https://gearbox99641.weblogco.com/33913769/the-smart-trick-of-gearbox-that-no-one-is-discussing