Results 11 to 20 of about 1,534,066 (401)
Improving the efficiency of a hydraulic drive with a closed-loop hydraulic circuit
Journal of Physics: Conference Series, 2020 While developing the Arctic territories, the use of mechanical equipment, adapted to work at low temperatures, is required. The power element of hydraulic machines is a hydraulic fluid, which, under different ambient conditions, changes the viscosity ...
R. Emelyanov +4 more
semanticscholar +4 more sources
Performance of SR Drive for Hydraulic Pump [PDF]
Journal of Electrical Engineering and Technology, 2007 This paper proposes a hydraulic pump system that uses a variable speed SR drive and constant capacity pump. For the design of the SRM (Switched Reluctance Motor) and digital controller, base speed and rating torque are determined from the mechanical specifications of the hydraulic pump.
Sang-Hun Lee +3 more
openalex +3 more sources
Hydrodynamic Processes in Angular Fitting Connections of a Transport Machine’s Hydraulic Drive
Machines, 2023 The article presents the theoretical research on hydraulic processes occurring in hydraulic drives of transport machines. The research analysed the influence of hydrodynamic processes on the fluid flow characteristics following installation of angular ...
M. Karpenko +5 more
semanticscholar +1 more source
Hydraulic Switching Control Supplementing Speed Variable Hydraulic Drives [PDF]
Actuators, 2020 Primary control of linear motion by variable speed electric motors driving a hydraulic cylinder via a constant displacement pump is an established and successful concept with a frequent use in industry. One problem arises when low or zero motion speed has to be realized under high pump pressure conditions.
Philipp Zagar +3 more
openaire +3 more sources
Design and Control of a Linear Rotary Electro-Hydraulic Servo Drive Unit
Applied Sciences, 2023 In this paper, a new solution for an electro-hydraulic servo drive is proposed, which consists of two electro-hydraulic servo drives: one with a hydraulic cylinder and one with a hydraulic rotary motor.
Andrzej Milecki +2 more
doaj +1 more source
Hydraulic shock suppression mechanism of the hydraulic drive [PDF]
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Researches show that hydraulic shock provokes premature destruction of hydraulic drive high-pressure hoses and unauthorized emission of working fluid into the atmosphere, resulting in environmental pollution. There are ways to protect the machines hydraulic transmission based on the principle of automatic disconnection from the ...
O V Burlachenko +2 more
openaire +1 more source
Geofluids, 2022 Hydraulic top drive is the main power component used to drive drilling tools rotating to drill a hole for drilling rigs. Its main transmission system was built with hydraulic power source and hydraulic actuators.
Yuanling Shi, Pingsong Zhang
doaj +1 more source
Dynamic Processes Modeling in a Peristaltic Pump with a Hydraulic Drive for the Bingham Fluid
Advances in Science and Technology Research Journal, 2022 Problem. At present, peristaltic pumps are widely used in construction, chemical production, mining industry, processing plants, food processing industry, etc.
Olha Dvirna +4 more
semanticscholar +1 more source
Research on the Optimal Selection of Coating for the Friction Pair of Hydraulic Cylinder for Control Rod Hydraulic Drive Mechanism [PDF]
Cailiao Baohu, 2023 According to the use requirements of the control rod hydraulic drive mechanism，aiming at solving the radioactive problem caused by the use of material containing cobalt element (Co) as the adhesive of the tungsten carbide (WC) coating of the outer casing
SHI Yong, CHEN Bao, BO Han-liang
doaj +1 more source
The Influence of Wave Processes of Hydraulic Oils on the Operation of a Hydraulic Drive
Agricultural Engineering, 2022 The paper reviews the state of research of wave processes in hydraulic systems of machines, and their impact on the quality and stability of hydraulic drives.
I. Hunko +6 more
semanticscholar +1 more source