Article | 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden | Effects of Design Parameters on Response Characteristics of Water Hydraulic Proportional Control Valves
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Title:
Effects of Design Parameters on Response Characteristics of Water Hydraulic Proportional Control Valves
Author:
F. Yoshida: Basic Technology R&D Center, KYB Corporation, Minami-ku, Sagamihara-shi, Kanagawa-ken, Japan S. Miyakawa: Basic Technology R&D Center, KYB Corporation, Minami-ku, Sagamihara-shi, Kanagawa-ken, Japan
DOI:
10.3384/ecp1392a42
Download:
Full text (pdf)
Year:
2013
Conference:
13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Issue:
092
Article no.:
042
Pages:
429-436
No. of pages:
8
Publication type:
Abstract and Fulltext
Published:
2013-09-09
ISBN:
978-91-7519-572-8
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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Water hydraulic proportional control valves using ‚Äútap water‚ÄĚ as the working fluid are suitable for systems that require high levels of environmental friendliness and safety. Particularly; there are high expectations for their application to mining machinery; wave and wind power generation systems; and ocean development machinery; including underwater drilling machinery. In the previous report; the authors defined the transfer functions of three components of the water hydraulic proportional control valve; namely the compensation circuit; the solenoid; and the pilot valve; and experimentally and analytically examined the effects of design parameters on valve performance. In water hydraulic proportional control valves that use tap water; with its poor lubricating properties; as the working fluid; the hydrostatic bearings and damping orifices; which comprise the structural characteristics of the valve; function to ensure friction/wear prevention and stable operation of the spool. Moreover; the hydrostatic bearings and damping orifices structurally constitute a meter-in circuit that is effective in improving the response characteristics of the spool and a meter-out circuit that is effective in improving the damping characteristics of the spool; their functions are determined depending on the purpose of the valve. This report focuses on the open loop transfer function represented by the solenoid and the pilot valve and how that function effects the characteristics of the entire valve; more specifically; the effect of the geometric parameters of the hydrostatic bearings and damping orifices is examined; then; the effect of these parameters on the step response characteristics of the entire valve is analytically verified.

Keywords: Water hydraulic proportional control valve; tap water; response characteristics

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
F. Yoshida, S. Miyakawa
Title:
Effects of Design Parameters on Response Characteristics of Water Hydraulic Proportional Control Valves
DOI:
http://dx.doi.org/10.3384/ecp1392a42
References:

[1] S Miyakawa; C Yamashina; and T Takahashi. Development of Water Hydraulic Proportional Control Valve. The Fourth JHPS International Symposium on Fluid Power; ISBN4-931070-04-3; © Copyright JHPS; 1999 All rights reserved. Japan.

[2] F Yoshida; and S Miyakawa. Characteristics of Proportional Control Valve Using Tap Water. The 7th International Fluid Power Conference; Group H; 445- 456; 22-24 March 2010; Aachen ; Germany.

[3] F Yoshida; and S Miyakawa. Dynamic Characteristics of Proportional Control Valve Using Tap Water - Experimental Examination-. The Twelfth Scandinavian International Conference on Fluid Power; Vol. 2 469- 480; 18-20 May 2011; Tampere; Finland.

[4] F Yoshida; and S Miyakawa. Effect of Parameters on Frequency Characteristics of Proportional Control Valve Using Tap Water. The 8th JFPS international Symposium on Fluid Power in Okinawa; Japan; on October 25-28; 2011; CD-ROM.

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
F. Yoshida, S. Miyakawa
Title:
Effects of Design Parameters on Response Characteristics of Water Hydraulic Proportional Control Valves
DOI:
http://dx.doi.org/10.3384/ecp1392a42
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