@article{scholars2388,
            note = {cited By 1; Conference of 1st International Conference on Intelligent Robotics, Automation and Manufacturing, IRAM 2012 ; Conference Date: 28 November 2012 Through 30 November 2012; Conference Code:94343},
          volume = {330 CC},
             doi = {10.1007/978-3-642-35197-6{$_3$}{$_7$}},
         address = {Kuala Lumpur},
           title = {Improvement of actuation speed of hydraulic cylinders: Using novel flow control valve system},
            year = {2012},
         journal = {Communications in Computer and Information Science},
           pages = {331--339},
            isbn = {9783642351969},
          author = {Abdalla, M. O. and Nagarajan, T. and Hashim, F. M.},
            issn = {18650929},
        abstract = {The aim of the study is to identify the major source of power losses in linear hydraulic actuators and to find suitable solutions. A new energy efficient hydraulic system is proposed. The concept of the proposed system is based on overcoming the back pressure in piston front chamber generated by flow restriction of outlet port. This is achieved by increasing the discharged flow rate of oil by adding two new outlet ports to the conventional hydraulic cylinder. Flow through the new outlet ports is controlled by a novel pressure actuated flow control valve. The discharge oil through the new ports is forwarded directly to the oil tank without passing through the directional control valve that controls the flow to the actuator. The conventional and the proposed hydraulic cylinders are simulated in FLUENT. Results show that the proposed four-port actuators give better performance regarding hydraulic resistance, piston speed and energy savings. {\^A}{\copyright} 2012 Springer-Verlag.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84870797129&doi=10.1007\%2f978-3-642-35197-6\%5f37&partnerID=40&md5=b1669e72093ada6ecf514ba09690ab39},
        keywords = {Back pressures; Directional control valve; Discharged flow; Energy efficient; Flow control valves; Flow restriction; Flowthrough; Hydraulic control; Hydraulic cylinders; Hydraulic resistances; Hydraulic system; Hydraulic valves; Outlet port; Power-losses; Suitable solutions, Energy efficiency; Flow control; Hydraulic actuators; Hydraulic equipment; Hydraulic machinery; Manufacture; Mechanical actuators; Oil tanks; Safety valves, Robotics}
}