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
doaj +2 more sources
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 +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources
Backstepping Sliding-Mode Control of Piezoelectric Single-Piston Pump-Controlled Actuator [PDF]
Actuators, 2021 A piston piezoelectric (PZT) pump has many advantages for the use of light actuators. How to deal with the contradiction between the intermittent oil supplying and position control precision is essential when designing the controller. In order to accurately control the output of the actuator, a backstepping sliding-mode control method based on the ...
Bin Wang, Pengda Ren, Xinhao Huang
openaire +2 more sources
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
Energy Saving Potential in Knuckle Boom Cranes using a Novel Pump Controlled Cylinder Drive [PDF]
Modeling, Identification and Control, 2018 This paper is considering the application of a novel pump controlled cylinder drive, the so-called Speed-variable Switched Differential Pump (SvSDP), for knuckle boom crane actuation.
Søren Ketelsen +3 more
doaj +1 more source
Proton gradients from light-harvesting E. coli control DNA assemblies for synthetic cells
Nature Communications, 2021 Controlled actuation is an important aspect of synthetic cellular systems. Here, the authors combine pH responsive DNA origami structures with light triggered proton pump engineered E.
Kevin Jahnke +11 more
doaj +1 more source