5.3.2 Work principle
Valve bore, valve sleeve, valve body in the redirector makes up of along valve,
having an effect of controlling the direction of the oil flow. Rotor and stator makes up of
cycloid mesh, having an effect of measure element when turning, to make sure that the
oil quantity in oil crock and corner of steering wheel makes direct ratio; having an effect
of hand moving oil pump when turning by manpower; and linkage shaft having an effect
of transferring wrest rules.
Middle position (steering wheel isn’t running), in the opening ring system, the oil
from oil pump passes through the lumen of valve bore to oil box.(Fig.5.2 a)
When turning by power, oil from oil pump pass through the along valve to cycloid
pin wheel mesh, force rotor running following steering wheel, and press the ration oil to
the left or the right of crock, force turning wheel to turn by power, and oil in the other
cylinder flows back to oil box.(Fig.5.2 b, c)
When engine comes out flameout, the steering wheel will be operated by
manpower, with valve bore, melt, interlock shaft, driving rotor to press oil in one cylinder
to the other one, then force turning wheel, to carry out turning by manpower (Fig.5.2 d).
Filling oil by oil box when passing through filling unilateralism valve.
Fig5.3 Oil circuit of steering unit
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