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JRM Vol.22 No.3 pp. 333-340
doi: 10.20965/jrm.2010.p0333
(2010)

Paper:

Development of the Small Flow Rate Water Hydraulic Servo Valve

Toshiya Watanabe, Tomokazu Inayama, and Takeo Oomichi

Department of Mechanical Engineering, Meijo University, 1-501 Shiogamaguchi, Tenpakuku, Nagoyashi, Aichi 468-8502, Japan

Received:
October 3, 2009
Accepted:
February 21, 2010
Published:
June 20, 2010
Keywords:
water hydraulic system, servo valve, spool, hysteresis, leakage
Abstract

A small capacity servo valve was developed for a small size water hydraulic manipulator, focusing the saving energy. The new servo valve optimizes the machines small flow rate use, makes the stroke longer for wideband use, reduces leakage and makes control easier. The test and evaluation of the servo valve was conducted by examining flow rate characteristics, leakage characteristics and responsibility. The flow rate and leak rate of the servo valve shows to be the same as the oil hydraulic servo valve, while the step and frequency response show good controllability for the water hydraulic manipulator.

Cite this article as:
Toshiya Watanabe, Tomokazu Inayama, and Takeo Oomichi, “Development of the Small Flow Rate Water Hydraulic Servo Valve,” J. Robot. Mechatron., Vol.22, No.3, pp. 333-340, 2010.
Data files:
References
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