Results 1 to 10 of about 22,198 (264)
Design, Implementation and Evaluation of a Pump-Controlled Circuit for Single Rod Actuators [PDF]
Actuators, 2017 Pump-controlled hydraulic circuits are more efficient than valve-controlled circuits, as they eliminate the energy losses due to flow throttling in valves and require less cooling effort.
Ahmed Imam +3 more
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Improving the Performance of Pump-Controlled Circuits for Single-Rod Actuators [PDF]
Actuators, 2019 Pump-controlled hydraulic circuits offer an energy-efficient solution for many applications. They combine the high power to weight ratio of hydraulic technology with the ease of control of electric technology.
Ahmed Imam +3 more
doaj +4 more sources
A Comparative Study of Two Common Pump-Controlled Hydraulic Circuits for Single-Rod Actuators
Actuators, 2023 Pump-controlled hydraulic circuits are proven to be more efficient than conventional valve-controlled circuits. Pump-controlled hydraulic circuits for double rod cylinders are well developed and are in use in many practical applications.
Ahmed Imam +2 more
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Miniature 3D-Printed Centrifugal Pump with Non-Contact Electromagnetic Actuation
Micromachines, 2019 We present a miniature 3D-printed dynamic pump using the centrifugal operating principle. Dynamic pumps typically yield higher flow rates than displacement pumps at reasonable output pressure.
Luca Joswig +2 more
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A Mini‐Patch Magnetic Insulin Pump for Enhanced Delivery Resolution and Accuracy [PDF]
Advanced Intelligent SystemsInsulin pumps typically use piston‐based mechanisms with bulky transmission components to convert rotary motion into the piston's forward motion. These mechanical transmission systems and insulin reservoirs occupy more than one‐third of pumps’ volume ...
Qiji Ze +5 more
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Refillable silicone pump with precise switching for timed therapeutic delivery [PDF]
Frontiers in Bioengineering and BiotechnologyIntroductionGiven the precise temporal coordination of natural biological processes, administering therapeutic agents at specific times can be used to enhance efficacy in a range of applications. To achieve such controlled drug delivery, various stimulus-
Naaz Thotathil +15 more
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Actuators, 2018 Valve-controlled hydraulic actuation systems are favored in many applications due to their fast response, high power-to-weight ratio, and stability under variable working conditions. Efficiency, however, is the main disadvantage of these systems.
Ahmed Imam +3 more
doaj +3 more sources
Classification and Review of Pump-Controlled Differential Cylinder Drives
Energies, 2019 Pump-controlled hydraulic cylinder drives may offer improved energy efficiency, compactness, and plug-and-play installation compared to conventional valve-controlled hydraulic systems and thus have the potential of replacing conventional hydraulic ...
Søren Ketelsen +4 more
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Pump-Controlled Actuators with Dump Valves
Linköping Electronic Conference Proceedings, 2021 The electrification trend means an increased focus on the energy efficiency of mobile hydraulic systems. In turn, this means an increased focus on so-called pump-controlled systems, where actuators are controlled by pump flow rather than valve throttling.
Samuel Kärnell +3 more
openaire +2 more sources
Influence of Hydraulics on Electric Drive Operational Characteristics in Pump-Controlled Actuators [PDF]
Actuators, 2021 Transitioning from a valve- to pump-controlled system has been observed in working hydraulics to reduce energy consumption and accelerate the response to decarbonization requirements in Non-road Mobile Machinery (NRMM). The utilization of an electric motor as a prime mover significantly enhances the chances of completing this task. While the concept of
Viacheslav Zakharov, Tatiana Minav
openaire +4 more sources