Yanmar 4LHA-HTP - Page 509

Chapter 5 Lubrication System
2. Lube Oil Pump
4LHA Series
Gear
Outer rotor
Inner rotor
Rotor shaft
Pump body ,
Side cover
Oil pressure safety valve
2-2 Specifications of lube oil pump
4LHA-HTE
4LHA-DTE
Engine speed
3400 rpm
3400 rpm
Gear ratio
(crank gear/pump gear)
24/22=1.02
24/22=1.02
24/27=0.89
Pump speed at 3300 rpm (Engine)
3468 rpm
3468/3026 rpm
Discharge volume
2600//H
Total 3700 €IH
Discharge pressure
0.39(4) MPa(kgf/cm) 0.39(4) MPa(kgf/cm)
Safety valve openning pressure
1.18(12) MPa(kgf/cm) 1.18(12) MPa(kgf/cm')
5-4