Results 181 to 190 of about 545,828 (225)
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Electro-hydraulic dipole vibrator
The Journal of the Acoustical Society of America, 1993A downhole seismic shear wave source is used to generate seismic shear waves a downhole environment. At least one double headed piston rod with a third piston on the center of the rod slides laterally in the downhole tool. Each end piston head is connected to a rolling diaphragm that is secured at its edges around the periphery of the piston receiving ...
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The electro-hydraulic valvetrain system
MTZ worldwide, 2004The electro-hydraulic valvetrain system (EHVS) is one of the most flexible options for replacing the conventional mechanical camshaft by an electronically controlled actuator system. Thus, fully variable feeding and dissipation of the gases involved in the combustion process can be ensured.
Dirk Denger, Karsten Mischker
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Modelling and simulation of an electro-hydraulic mining manipulator
Proceedings of International Conference on Robotics and Automation, 2002A method for modelling an electrohydraulic system is presented in this paper. Without directly using the conventional linear models, accurate models for the electrohydraulic components have been constructed using the characterisation data provided by manufacturers and measurements obtained in the laboratory with a custom built electrohydraulic ...
Zheng D. Li +2 more
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Projective control of electro-hydraulic servo system
Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001A nonlinear dynamic model for an electro-hydraulic servo system is developed. The model's response is compared with that of an actual valve. A projective control algorithm is used to control the motion of a load. Robustness of the control algorithm is analyzed through simulations.
Celal Batur, Maged Naeim Tawfik
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Direct Position Control of Electro-Hydraulic Excavator
BATH/ASME 2018 Symposium on Fluid Power and Motion Control, 2018Position measurement in the electro-hydraulic systems is feasible via the utilization of physical sensors. An improvement in technology has led to the manufacturing of high accurate position sensors for direct position control. This paper proposes utilization of direct position control in an electro-hydraulic system with a new hydraulic zonal system ...
Pietola Matti +4 more
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Electro‐Hydraulic Measuring Appliances
Aircraft Engineering and Aerospace Technology, 1936Some Typical Installations Suitable for Aero‐Engine ...
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SAE Technical Paper Series, 1969
<div class="htmlview paragraph">This paper considers the design and application of the electrohydraulic power unit for direct current installations. It discusses the advantages provided by the packaged power unit and advocates its selection for certain vehicular applications.</div>
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<div class="htmlview paragraph">This paper considers the design and application of the electrohydraulic power unit for direct current installations. It discusses the advantages provided by the packaged power unit and advocates its selection for certain vehicular applications.</div>
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Analysis of Electro-Hydraulic Car Steering Systems
2005There have been great reserch efforts in order to improve present power-assisted steering systems for passenger cars. The description of main types of power-assisted steering systems are given. The focus of the paper is on electro-hydraulic steering systems that seems to be employed in middle and upper class of passenger cars, at least in closer future.
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