In order to control the high PV value between the vanes and the cam ring in a water hydraulic vane pump, a pressure-reducing valve with a constant pressure ratio was developed in this study. The pressure and leakage characteristics of the valve were theoretically analyzed by simulation and the experiments were also conducted based on the valve prototype. The theoretical analysis agrees well with the experimental results. Further, these results reveal that the pressure ratio of the valve decreases to the design value with the increasing working pressure. Additionally, the leakage of the valve rises simultaneously with the increasing working pressure and can be reduced significantly by decreasing the clearance between the valve body and the spool. The presented research not only proves the successful development of the pressure-reducing valve but also lays a foundation for the investigation of a high-pressure water hydraulic vane pump.

References

References
1.
Trostmann
,
E.
,
1996
,
Water Hydraulics Control Technology
,
Marcel Dekker, Inc.
,
New York, US
, Chap. 1.
2.
Koskinen
,
K. T.
, and
Matti
,
J. V.
,
1994
, “
Water as A Pressure Medium in Fluid Power Systems
,”
IFAC Workshop on Trends in Hydraulic and Pneumatic Components and Systems, Chicago
.
3.
Terävä
,
J.
,
Kuikko
,
T.
, and
Vilenius
,
M.
,
1995
, “
Development of Seawater Hydraulic Power Pack
,”
Proceedings of the 4th Scandinavian International Conference on Fluid Power
, U. Ahlfors, L. Lahti, R. Siekkinen, eds., Tampere, Finland, pp.
978
991
.
4.
Pohls
,
O.
,
Rantanen
,
O.
, and
Kuilko
,
T.
,
1999
, “
CBA Water Hydraulic Axial Piston Machine
,”
Proceedings of the 6th Scandinavian International Conference on Fluid Power
, K. T. Koshinen, M. Vilenious, K. Tikka, Tampere, Finland, pp.
219
229
.
5.
Kitagawa
,
A.
,
1999
, “
Co-operation Between University and Water Hydraulic Company in Japan
,”
Proceedings of the 6th Scandinavian International Conference on Fluid Power
, K. T. Koshinen, M. Vilenious, K. Tikka, Tampere, Finland, pp.
35
50
.
6.
Black
,
S. A.
, and
Kuehler
,
W. D.
Jr.
,
1984
, “
The Development of a Seawater Hydraulic Vane Motor
,”
Proceedings of the National Conference on Fluid Power
, Illinois Institute of Technology, National Fluid Power Association (U.S.), Fluid Power Society, Chicago, pp.
111
118
.
7.
Shinoda
,
M.
,
Yamashina
,
C.
, and
Miyakawa
,
S.
,
1999
, “
Development of Low-Pressure Water Hydraulic Motor
,”
Proceedings of the 6th Scandinavian International Conference on Fluid Power
, K. T. Koshinen, M. Vilenious, K. Tikka, Tampere, Finland, pp.
243
254
.
8.
Marten
,
L.
, and
Hansen
,
G. L.
,
2000
, “
Hydraulic Vane Machine
,” U.S. Patent No. 6,027,323 A.
9.
Strueh
,
T. C.
,
2006
, “
Vane Pump Having Pressure Compensating Valve
,” U.S. Patent No. 7,094,044 B2.
10.
Yong
,
L.
,
Wei
,
Z.
,
Yang
,
Z. Y.
,
Zhong
,
W. Z.
, and
Cheng
,
S. P.
,
2011
, “
Studies on Several Key Problems of Water Hydraulic Vane Pump
,”
Ind. Lubr. Tribol.
,
63
, pp.
134
141
.
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