Design and Experimental Research of a Miniature Digital Hydraulic Valve

Zhang, Junhui; Yang, Meisheng; Xu, Bing

doi:10.3390/mi9060283

Cited by 17 publications

(8 citation statements)

References 8 publications

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“…The valve is able to achieve a switching time of 1.5 ms with a length of 36 mm and a diameter of 12 mm. Whereas, the small size limits the orifice diameter to 0.5 mm and the flow rate is only 0.7 L/min at a pressure drop of 3.5 MPa [32].…”

Section: Direct Drive Hsvmentioning

confidence: 99%

Development of High-Speed On–Off Valves and Their Applications

Wang

Chen

Huang

et al. 2022

Chin. J. Mech. Eng.

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With the widespread application of the computer and microelectronic technology in the industry, digitization becomes the inevitable developing trend of the hydraulic technology. Digitization of the hydraulic components is critical in the digital hydraulic technology. High-speed on-off valves (HSVs) which convert a train of input pulses into the fast and accurate switching between the on and off states belong to widely used basic digital hydraulic elements. In some ways, the characteristics of the HSVs determine the performance of the digital hydraulic systems. This paper discusses the development of HSVs and their applications. First, the HSVs with innovative structures which is classified into direct drive valves and pilot operated valves are discussed, with the emphasis on their performance. Then, an overview of HSVs with intelligent materials is presented with considering of the switching frequency and flow capacity. Finally, the applications of the HSVs are reviewed, including digital hydraulic components with the integration of the HSVs and digital hydraulic systems controlled by the HSVs.

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Section: Direct Drive Hsvmentioning

confidence: 99%

Development of High-Speed On–Off Valves and Their Applications

Wang

Chen

Huang

et al. 2022

Chin. J. Mech. Eng.

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“…The system of the digital valve was also developed, and the working principle of the relevant system was described [ 23 ]. The hydraulic scheme of the test system is shown in Figure 4 , including main circuit system and auxiliary circuit system.…”

Section: Digital Valve and Test Systemmentioning

confidence: 99%

Study on Dynamic and Static Performance of a Micro Digital Hydraulic Valve

Yang

2022

Micromachines

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Previous researchers mostly carried out simulation research and scattered experimental research on the static and dynamic characteristics of the digital valve, but did not form a systematic and in-depth study on the characteristics of the valve. Based on expounding the basic principles and functions of the valve and the test system, this paper carries out the test research under various variables for three kinds of static characteristics, including pressure differential-flow characteristics, signal-pressure characteristics, and signal-flow characteristics. The optimal control frequency of the valve is obtained from the comprehensive consideration of linear interval, linearity, and hysteresis. Three methods are systematically used to deeply study the dynamic characteristics, and the influencing factors of test results under various test conditions are analyzed. Through the research of this paper, it can provide relevant performance parameters for taking the digital valve as the system control element in the next step, and lay the foundation for the accurate control of the system.

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“…Figure 12(a). Yang et al [79,80] designed a miniaturized digital hydraulic valve along with valve packages. Kramer et al [6] developed a bi-stable latching valve, which is an energy-efficient alternative to mono-stable switching valves, as presented in Figure 12(b).…”

Section: Valves With Separate Meter-in and Meter-out Orificesmentioning

confidence: 99%

Research and Development of Electro-hydraulic Control Valves Oriented to Industry 4.0: A Review

Shen

Liu

et al. 2020

Chin. J. Mech. Eng.

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Electro-hydraulic control valves are key hydraulic components for industrial applications and aerospace, which controls electro-hydraulic motion. With the development of automation, digital technology, and communication technology, electro-hydraulic control valves are becoming more digital, integrated, and intelligent in order to meet the requirements of Industry 4.0. This paper reviews the state of the art development for electro-hydraulic control valves and their related technologies. This review paper considers three aspects of state acquisition through sensors or indirect acquisition technologies, control strategies along with digital controllers and novel valves, and online maintenance through data interaction and fault diagnosis. The main features and development trends of electro-hydraulic control valves oriented to Industry 4.0 are discussed.

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Design and Experimental Research of a Miniature Digital Hydraulic Valve

Cited by 17 publications

References 8 publications

Development of High-Speed On–Off Valves and Their Applications

Development of High-Speed On–Off Valves and Their Applications

Study on Dynamic and Static Performance of a Micro Digital Hydraulic Valve

Research and Development of Electro-hydraulic Control Valves Oriented to Industry 4.0: A Review

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