OIL PUMP CONSTRUCTION[ZJ, ZY, Z6]

id0111d1100600

•  An efficient and compact 9-lobe epitrochoid and 10-flank inner envelope type gear has been adopted for the oil pump.
•  The oil pump consists of the oil pump body, inner rotor, outer rotor, relief valve, and oil pump cover.
•  An aluminum alloy oil pump cover has been adopted to reduce weight.
•  An oil pressure regulator with an adjusting oil pressure is built into the oil pump body.
•  The oil pump is directly driven by the crankshaft to improve engine noise reduction.
•  A lightweight and compact trochoid gear type oil pump with 9.5 mm {0.37 in} wide rotors (outer rotor, inner rotor) with excellent heat-resistant and noise reduction characteristics has been adopted. Due to this, oil discharge is stabilized.
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1
Oil pump body (oil pressure regulator built-in)
2
Inner rotor
3
Outer rotor
4
Oil pump cover
5
Relief valve component

Oil pump

Item

Engine speed [rpm]

Specification
Oil discharge pressure (approx. quantity)
[Oil temperature: 100 °C {212 °F}]
1,500
210— 270 {2.14—2.75, 30.5—39.2}
3,000
450—480 {4.59—4.89, 65.4—69.5}
(kPa {kgf/cm2, psi})
Relief valve opening pressure (approx. quantity)
(kPa {kgf/cm2, psi})
400—450 {4.08—4.59, 58.3—65.4}