MPV ES V6-2.5L DOHC (2001)
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Fluid Pump: Description and Operation
OIL PUMP DESCRIPTION
Outline
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A variable capacity trochoid oil pump is used to improve discharge efficiency and reduce fuel consumption. The variable capacity pump also
outputs oil in proportion to engine speed, but when the engine reaches a certain speed, the output of the pump is held to minimize the drive torque
losses caused by the pump.
Construction
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An outer rotor, inner rotor, and oil pump flange are installed within the pump housing of the trochoid gear oil pump. The oil pump flange and oil
pump shaft are coupled to the inner rotor.
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The other end of the oil pump shaft is coupled to the pump impeller side of the torque converter.
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As a result, the oil pump flange, the inner rotor, and the outer rotor rotate unitedly with the engine. A spool and spring installed in the discharge
section of the pump housing regulates the oil discharge.