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Study for the Actuation of Lifter by the Bi-Directional Pump and Single-Rod Cylinder  

Lee, Seong-Rae (Department of Mechanical Engineering, Konyang University)
Kim, Je-Min (Department of Mechanical Engineering, Konyang University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.15, no.4, 2007 , pp. 139-145 More about this Journal
Abstract
The motion of single-rod cylinder is typically controlled by the directional control valve. In some case, the hydraulic system should be energized by the man power and at the same time the motion of a cylinder is controlled manually. It may be confusing for a man to do two things at the same time. The solution is to make up the closed hydraulic circuit with the bi-directional pump and single-rod cylinder without using a directional control valve. In the case of single-rod cylinder, the flows at the rod side and head side are so different that several valves should be installed to make the motion of single-rod cylinder possible. The hydraulic system is composed of a bi-directional pump, a single-rod cylinder, pilot operated check valves, a check valve and a counter balance valve for the purpose of actuating the lifter. The characteristics of a suggested system are analysized mathematically and numerically.
Keywords
Bi-directional pump; Single-rod cylinder; Lifter; Pilot operated check valve; Counter balance valve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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