OIL PUMP CONSTRUCTION [ZY, Z6]

id0111001006a0

• 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.

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})	3,000	450-480 {4.59-4.89, 65.4-69.5}
Relief valve opening pressure (approx. quantity)	(kPa {kgf/cm², psi})	400-450 {4.08-4.59, 58.3-65.4}