OIL PUMP CONSTRUCTION


BHE011101008T06

• A trochoid type oil pump has been adopted.

• A two-rotor type oil pump has been adopted for improved oil discharging ability and downsizing. It is also beneficial for reducing discharging pulsation.

• An efficient, compact 4-lobe epitrochoid and 5-flank inner envelope type gear has been adopted for the oil pump.

• The oil pump consists of oil pump body, shaft, front outer rotor, front inner rotor, middle plate, rear inner rotor, and rear outer rotor.

1
Sec. A-A'
2
Oil inlet
3
Oil outlet
4
Middle plate
5
Oil pump body
6
Shaft
7
Front outer rotor
8
Front inner rotor
9
Middle plate
10
Rear inner rotor
11
Rear outer rotor

• An oil pressure regulator has been adopted on the rear side housing to release oil when the oil pressure is 538-638 kPa {5.5-6.5 kgf/cm2, 78.0-92.5 psi} or more.

1
Below specified value
2
Above specified value