OIL PUMP OUTLINE [FN4A-EL]


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Features

•  The light-weight, compact, and quiet trochoid gear type oil pump has been adopted to reduce the pump driving torque.
•  The direct drive type oil pump has been adopted and placed behind the torque converter.
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Structure

•  The outer rotor and the inner rotor are installed in the oil pump housing.
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•  The inner rotor in the oil pump housing is driven by the torque converter.

Operation

•  When the inner rotor in the oil pump rotates, the ATF is drawn to the oil pump and then discharged from the oil pump. The discharge amount is proportional to the rotating speed of the torque converter. The ATF discharge amount is controlled by the pressure regulator valve and the pressure control solenoid.
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