Results 171 to 180 of about 249,552 (211)
Some of the next articles are maybe not open access.
1976
Electrohydraulic systems use low-power electrical signals (of less than say 1 W) for precisely controlling the movements of large power hydraulic pistons and motors (which may be rated at say 10 hp—7460 W—or more). The ‘interface’ between the electrical (control) equipment and the hydraulic (power) equipment is the so-called ‘electrohydraulic servo ...
openaire +1 more source
Electrohydraulic systems use low-power electrical signals (of less than say 1 W) for precisely controlling the movements of large power hydraulic pistons and motors (which may be rated at say 10 hp—7460 W—or more). The ‘interface’ between the electrical (control) equipment and the hydraulic (power) equipment is the so-called ‘electrohydraulic servo ...
openaire +1 more source
Low noise hydraulic servo valve
The Journal of the Acoustical Society of America, 1979A fluid flow control valve which includes a body formed to define a chamber having inlet, outlet and actuating ports for supplying and receiving fluid to and from external hydraulic machinery to be actuated and including a valve spool formed with several lands and slidably arranged in the chamber for controlling the flow of fluid through the ports, in ...
Paul F. Hayner +3 more
openaire +1 more source
Servo-Valve Controlled Isolation Systems
Proceedings of the Institution of Mechanical Engineers, 1970Active isolation systems using nozzle-flapper valves and pneumatic springs are capable of much improved isolation characteristics when compared with conventional isolation systems, but they suffer from the fact that large quiescent leakage flows are required for satisfactory dynamic performance of the isolation system (1)‡.
J. I. Soliman, D. Tajer-Ardabili
openaire +1 more source
High-response electrorheological servo valve
Journal of Intelligent Material Systems and Structures, 2019The demand of more powerful and high-dynamic hydraulic actuators gives the servo valve as a control member an increasingly important role. The valve should provide the hydraulic actuator with sufficient volume flow over wide frequency range to achieve large strains at high operating frequencies.
Helge Heinken +3 more
openaire +1 more source
Double-Orifices Pneumatic Servo Valve
2019Pneumatic servo valve is the core component of pneumatic servo system. Pneumatic servo valve can be divided into one-side pneumatic servo valve, two-side pneumatic servo valve, and four-side pneumatic servo valve according to the number of throttling edges. There are three kinds of coordination states in axial size of even number of throttling orifices
openaire +1 more source
HYDRAULIC SERVO CONTROL VALVES. PART 4. REASEARCH ON SERVO VALVES AND SERVO SYSTEMS
1957Phillip A. Weiss +2 more
openaire +1 more source
Pneumatic Servo Valve with Negative Overlaps
2019There are three kinds of axial overlap between pneumatic servo valve spool and valve sleeve, namely positive overlap, zero overlap, and negative overlap. Positive overlap, also known as negative opening state, refers to the width of spool shoulder is larger than the width of valve sleeve groove, geometrically forming a positive overlap, negative ...
openaire +1 more source
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2023
Junting Lu, Haibo Xie, Yun-Min Chen
exaly
Junting Lu, Haibo Xie, Yun-Min Chen
exaly