Results 21 to 30 of about 655,526 (298)

Studies related to the calculation of the noise. The study of pumping hydraulic systems and the study of the use of an unloading valve in a hydraulic system [PDF]

E3S Web of Conferences, 2020
In order to identify the main functional capabilities of the control system of the pump-accumulator hydraulic power source equipped with a pump unloading machine of the proposed design, a numerical experiment was carried out.
Kobzev Kirill, Vyalov Sergey, Rybak Alexander   +2 more
doaj   +1 more source

Hydraulic Characteristics of Axial Flow Pump Device With Different Guide Vane Inlet Angles

Frontiers in Energy Research, 2022
To improve the efficiency of low-head pump device in the large-discharge and low-head domain, the hydraulic characteristics of vertical axial flow pump devices with different guide vane inlet angles were studied using computational fluid dynamics (CFD ...
Lei Xu, Hucheng Zhang, Chuan Wang, Chuan Wang, Dongtao Ji, Wei Shi, Weigang Lu, Linguang Lu   +7 more
doaj   +1 more source

Study on the Comparison of the Hydraulic Performance and Pressure Pulsation Characteristics of a Shaft Front-Positioned and a Shaft Rear-Positioned Tubular Pump Devices

Journal of Marine Science and Engineering, 2021
The shaft front-positioned tubular pump device has been widely used in practical engineering, but the shaft rear-positioned pump device is rarely used due to its low efficiency.
Dongtao Ji, Weigang Lu, Linguang Lu, Lei Xu, Jun Liu, Wei Shi, Guohao Huang   +6 more
doaj   +1 more source

Power Pump Valve Dynamics [PDF]

, 2009
LectureThe dynamics (movement) of the check valves in a reciprocating power pump determine whether the pump will operate quietly and smoothly, or noisily with pulsation and vibration.
Henshaw, Terry
core   +1 more source

Research on Response Characteristics and Energy Efficiency of Power Unit Used for Electric Driving Mobile Machine

IEEE Access, 2019
Nowadays, the hydraulic pump driven by the diesel engine is widely used as the power unit for mobile machines, which consumes a large amount of fuel and cause high emissions. One solution is to use the electric driving mode.
Xiaogang Zhang, Weinan Huang, Lei Ge, Long Quan   +3 more
doaj   +1 more source

Computational Fluid Dynamic Analysis of Flow Rate Performance of a Small Piezoelectric-Hydraulic Pump

Applied Sciences, 2021
This paper investigates the transient flow rate performance of small piezoelectric-hydraulic pumps. In a previous study, a small piezoelectric hydraulic pump was designed and developed to be applicable to the braking systems of small- and medium-sized ...
Phuc Nguyen Anh, Jae-Sung Bae, Jai-Hyuk Hwang   +2 more
doaj   +1 more source

HYDRAULIC CHARACTERISTICS OF THE AIRLIFT PUMP

Acta Scientiarum Polonorum. Formatio Circumiectus, 2019
Podnośniki powietrzne są najprostszymi urządzeniami wykorzystywanymi do podnoszenia i transportu cieczy w systemach wodnych i kanalizacyjnych. Ze względu na przepływ dwufazowy są one przedmiotem wielu badań. Znajomość parametrów przepływu dwufazowego jest niezbędna do właściwego zaprojektowania podnośnika.
Sebastian Kujawiak, Małgorzata Makowska, Radosław Matz   +2 more
openaire   +2 more sources

Diagnosis of Centrifugal Pump Faults Using Vibration Methods [PDF]

, 2012
Pumps are the largest single consumer of power in industry. This means that faulty pumps cause a high rate of energy loss with associated performance degradation, high vibration levels and significant noise radiation.
Gu, Fengshou, Ball, Andrew, Althobiani, F., Gu, F., Al Thobiani, Faisal, Ball, A., Albraik, A.   +6 more
core   +1 more source

Design of control system of hydraulic pump station of reclaimer rake in coal preparation plant

Gong-kuang zidonghua, 2013
Most oil pump motors of hydraulic pump station of reclaimer rake in coal preparation plant uses direct starting mode to start, and adopts analog instrument to detect hydraulic oil temperature at present, which exist some problems such as big starting ...
WANG Xin-huan, ZHOU Fei, ZHANG Hong-wei
doaj   +1 more source

Hydraulic Experiments on a Plunger Pump [PDF]

Proceedings of the Institution of Mechanical Engineers, 1903
n ...
openaire   +2 more sources