In hydraulic servo systems, a pilot stage is often used to reduce the influence of Bernoulli’s forces and frictional forces when trying to accurately position a spool. A unique pilot controlled valve (defined as a two dimensional or “2D” flow control valve), which utilizes both rotary and linear motions of a single spool, is presented. The rotary motion uses a spiral groove in the sleeve combined with high and low pressure holes on the spool land to control the pressure in the spool chamber, while the linear motion of the spool is actuated by a hydrostatic force. Both linear theory and numerical simulation are adopted in the investigation of the characteristics of the valve. A criterion for stability is established from a linearized model of the valve. The analysis establishes the effects that certain structural parameters have on the valve’s static and dynamic characteristics. Special experimental procedures were designed to obtain properties such as mechanical stiffness, leakage flow rate, and dynamic response under different structural parameters and system pressure. It was shown that the leakage through the spool-sleeve clearance had a favorable effect on the valve stability. Theoretical and experimental results show that it is necessary to establish a balance between the static and dynamic performance in establishing appropriate structural parameters. It is also shown that the 2D flow control valve can demonstrate a high speed of response, while maintaining the pilot flow rate at a low level.
Skip Nav Destination
Article navigation
March 2002
Technical Papers
An Investigation Into the Characteristics of a Two Dimensional “2D” Flow Control Valve
J. Ruan,
J. Ruan
Department of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
Search for other works by this author on:
R. Burton,
R. Burton
Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada, S7N 5A9
Search for other works by this author on:
P. Ukrainetz
P. Ukrainetz
Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada, S7N 5A9
Search for other works by this author on:
J. Ruan
Department of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
R. Burton
Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada, S7N 5A9
P. Ukrainetz
Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada, S7N 5A9
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division March 22, 2001; Associate Editor: N. Manring.
J. Dyn. Sys., Meas., Control. Mar 2002, 124(1): 214-220 (7 pages)
Published Online: March 22, 2001
Article history
Received:
March 22, 2001
Citation
Ruan, J., Burton , R., and Ukrainetz, P. (March 22, 2001). "An Investigation Into the Characteristics of a Two Dimensional “2D” Flow Control Valve ." ASME. J. Dyn. Sys., Meas., Control. March 2002; 124(1): 214–220. https://doi.org/10.1115/1.1433480
Download citation file:
Get Email Alerts
Offline and Online Exergy-Based Strategies for Hybrid Electric Vehicles
J. Dyn. Sys., Meas., Control (May 2025)
Multi Combustor Turbine Engine Acceleration Process Control Law Design
J. Dyn. Sys., Meas., Control
A Distributed Layered Planning and Control Algorithm for Teams of Quadrupedal Robots: An Obstacle-Aware Nonlinear Model Predictive Control Approach
J. Dyn. Sys., Meas., Control (May 2025)
Active Data-Enabled Robot Learning of Elastic Workpiece Interactions
J. Dyn. Sys., Meas., Control (May 2025)
Related Articles
Hydraulic Servo System With Mechanically Adjustable Compliance
J. Dyn. Sys., Meas., Control (March,2002)
Control Design for Relative Stability in a PWM-Controlled Pneumatic System
J. Dyn. Sys., Meas., Control (September,2003)
Adaptive Control With Asymptotic Tracking Performance and Its Application to an Electro-Hydraulic Servo System
J. Dyn. Sys., Meas., Control (March,2000)
Enhanced Performance and Stability in Pneumatic Servosystems With Supplemental Mechanical Damping
J. Dyn. Sys., Meas., Control (July,2010)
Related Proceedings Papers
Related Chapters
Research on Autobody Panels Developmental Technology Based on Reverse Engineering
International Conference on Advanced Computer Theory and Engineering, 5th (ICACTE 2012)
Research on the Giant Magnetostrictive Flow Control Valve
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Accommodation and Stability of Alloying Elements in Amorphous Grain Boundaries of Zirconia
Zirconium in the Nuclear Industry: 20th International Symposium