7-M6
M6800 · M6800S · M8200 · M9000, WSM
STEERING
[2] METERING DEVICE (GEROTOR)
All oil sent from the hydraulic pump to the steering
cylinder, passes through the metering device (Gerotor).
Namely, when the rotor is drive, three chambers suck
in oil due to volumetric change in the pump chambers
formed between the rotor (2) and the stator (3), while oil
is discharged from other three chambers. On the other
hand, rotation of the steering wheel is directly transmitted
to the rotor through the steering shaft, spool, drive shaft,
etc..
Accordingly, the gerotor serves to supply the steering
cylinder with oil, amount of which corresponds to the
rotation of the steering wheel. The wheels are thus
turned by the angle corresponding to the rotation of the
steering wheel.
When the engine stops or the hydraulic pump
malfunctions, the gerotor functions as a manual trochoid
pump, which makes manual steering possible. Oil
discharge per rotor revolution is approx. 80 cc/cev (4.88
cu.in./rev).
W1013572
(1) Distributor Plate
(2) Rotor
(3) Stator
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