Operation

OPERATION

The inner rotor is connected to the engine crankshaft via a oil pump shaft, impeller side of the torque converter, and drive plate; when the inner rotor turns the outer rotor also turns.

Since the number of teeth on the inner rotor and outer rotor are not the same, a space is formed between the inner rotor and outer rotor and its capacity changes as the rotors turn. Oil is drawn in when the capacity is large and is compressed and discharged when the capacity becomes smaller.