Pilot operated miniature valve with fast response and high flow capacity

Authors

  • Tapio Lantela Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland
  • Jyrki Kajaste Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland
  • Jari Kostamo Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland
  • Matti Pietola Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland

DOI:

https://doi.org/10.1080/14399776.2014.893712

Keywords:

fast acting, digital hydraulics

Abstract

This paper introduces a pilot operated miniature digital hydraulic valve with a high flow capacity, in comparison to the size of the valve, and a fast response. The valve is designed to be used as a part of a digital valve system, which consists of a large number of similar valves. This paper presents the structure of the valve as well as the response time, flow capacity and leakage measurements of the prototype. The presented valve has a volume of approximately 4 cm3 and a flow capacity of 9 l/min with a 3.5 MPa pressure difference. Its response time is approximately 1 ms and the maximum operating pressure exceeds 30 MPa.

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Author Biographies

Tapio Lantela, Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland

Tapio Lantela received his M.Sc. in technology at Aalto University in 2012. Currently working as a PhD student in Aalto University School of Engineering. His main research interests are miniature hydraulic valves and fast electromagnetic valve actuators.

Jyrki Kajaste, Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland

Jyrki Kajaste received his DSc in technology at Aalto University in 1999. Currently working as a university teacher in Aalto University School of Engineering. His main research interests are dynamics and energy of hydraulic systems..

Jari Kostamo, Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland

Jari Kostamo received his M.Sc. in technology at Aalto University in 2007. Currently working as a PhD student in Aalto University School of Engineering. His main research interests are fast magnetorheological valves and actuators.

Matti Pietola, Department of Engineering Design and Production, Aalto University School of Engineering, Sähkömiehentie 4, 02150 Espoo, Finland

Matti Pietola received his DSc in 1989 at Helsinki University of Technology (later Aalto University) and has been there Professor of Mechatronics (Fluid Power Systems) since 1997.

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Published

2018-12-29

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Original Article