Test of a Novel Moving Magnet Actuated Seat Valve for Digital Displacement Fluid Power Machines

Christian Nørgård, Esben Lundø Madsen, Janus M.T. Jørgensen, Jeppe Haals Christensen, Michael Møller Bech

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

1 Citation (Scopus)

Resumé

The emerging digital displacement (DD) fluid power technology requires a new class of high-performance valves that can operate in harsh high-pressure conditions. To overcome the switching performance limitations of solenoids and to avoid the mechanical complexity of moving coil actuators, a novel electronically-controlled moving magnet actuated (MMA) annular seat valve is proposed, designed, built, and tested rigorously in the laboratory. The actuator is energized using one coil only, it has bidirectional force capability and it utilizes magnetic latching to keep it open instead of a spring. The annular seat valve has two metering edges; the static pressure drop is 0.11/0.31 bar at -142/108 L/min, respectively. The valve closing time is 4-6 ms depending on the flow rate. The MMA valve is tested experimentally in both standalone test rigs besides in situ tests in a fully operational DD prototype machine. Measurements provided for pumping and motoring operation at 800 r/min/100 bar demonstrate that the proposed MMA valve topology is a promising candidate for energy-efficient digital displacement machines. Key characteristics include little power consumption, good switching performance, and a simple mechanical design.

OriginalsprogEngelsk
Artikelnummer8445616
TidsskriftI E E E - A S M E Transactions on Mechatronics
Vol/bind23
Udgave nummer5
Sider (fra-til)2229-2239
Antal sider11
ISSN1083-4435
DOI
StatusUdgivet - okt. 2018

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Seats
Magnets
Fluids
Actuators
Solenoids
Pressure drop
Electric power utilization
Flow rate
Topology

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abstract = "The emerging digital displacement (DD) fluid power technology requires a new class of high-performance valves that can operate in harsh high-pressure conditions. To overcome the switching performance limitations of solenoids and to avoid the mechanical complexity of moving coil actuators, a novel electronically-controlled moving magnet actuated (MMA) annular seat valve is proposed, designed, built, and tested rigorously in the laboratory. The actuator is energized using one coil only, it has bidirectional force capability and it utilizes magnetic latching to keep it open instead of a spring. The annular seat valve has two metering edges; the static pressure drop is 0.11/0.31 bar at -142/108 L/min, respectively. The valve closing time is 4-6 ms depending on the flow rate. The MMA valve is tested experimentally in both standalone test rigs besides in situ tests in a fully operational DD prototype machine. Measurements provided for pumping and motoring operation at 800 r/min/100 bar demonstrate that the proposed MMA valve topology is a promising candidate for energy-efficient digital displacement machines. Key characteristics include little power consumption, good switching performance, and a simple mechanical design.",
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Test of a Novel Moving Magnet Actuated Seat Valve for Digital Displacement Fluid Power Machines. / Nørgård, Christian; Madsen, Esben Lundø; Jørgensen, Janus M.T.; Christensen, Jeppe Haals; Bech, Michael Møller.

I: I E E E - A S M E Transactions on Mechatronics, Bind 23, Nr. 5, 8445616, 10.2018, s. 2229-2239.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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AU - Christensen, Jeppe Haals

AU - Bech, Michael Møller

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