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OIL PUMP CONSTRUCTION [ZJ, ZY]

id011100100616
• 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.
• The 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 specification

ITEM | ENGINE SPEED [rpm] | ZJ | ZY
--- | --- | --- | ---
Oil discharge pressure (approximate quantity) [oil temperature: 100°C {212°F}] | (kPa {kgf/cm2, psi}) | 1,500 | 210- 270 {2.14-2.75, 30.5-39.2}
3,000 | 450-480 {4.59-4.89, 65.4-69.5}
Relief valve opening pressure (approximate quantity) | (kPa {kgf/cm2, psi}) | 400-450 {4.08-4.59, 58.3-65.4}