@inproceedings{6b5ea69b5c05412c9a2bed7d31f51bb9,
title = "Development of a high-speed on-off valve for switch-mode control of hydraulic circuits with four-quadrant control",
abstract = "Hydraulic circuits are typically controlled by throttling valves or variable displacement pump/motors. The first method throttles fluid for a desired pressure output and excess energy is lost through heat. While variable displacement pumps are more efficient, they are often large and expensive. An alternate method is the switch-mode control of hydraulic circuits through high-speed on-off valves. The proposed on-off valve design makes use of a continuously rotating disc to modulate flow between on and off states; the average power output or pulse duration is determined by the relative phase shift between the input and output ports. The addition of a directional valve to the the high-speed three-way valve allows any fixed displacement actuator to behave like a virtually variable displacement unit that is capable of four-quadrant control. In this paper a mathematical model focusing on the throttling, compressibility, internal leakage and viscous friction losses is developed and utilized to optimize the valve design for highest efficiency.",
author = "Wu, {Jeslin J.} and {Van De Ven}, {James D.}",
year = "2010",
doi = "10.1115/IMECE2010-37380",
language = "English (US)",
isbn = "9780791844274",
series = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",
publisher = "American Society of Mechanical Engineers (ASME)",
number = "PARTS A AND B",
pages = "281--288",
booktitle = "Design and Manufacturing",
edition = "PARTS A AND B",
note = "ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 ; Conference date: 12-11-2010 Through 18-11-2010",
}