Results 11 to 20 of about 158,656 (309)

Design and application of frequency converter test system of mine-used hydraulic pump

open access: yesGong-kuang zidonghua, 2014
An improved frequency converter test system of mine-used hydraulic pump was proposed in order to meet demands of performance testing and debugging of spare parts and repaired hydraulic pump after hydraulic pump was fault, and solve the problems that ...
RONG Xiang
doaj   +1 more source

Study on the Hydraulic and Energy Loss Characteristics of the Agricultural Pumping Station Caused by Hydraulic Structures

open access: yesAgriculture, 2022
The pumping station is an important part of the agricultural irrigation and drainage system. The sump is one of the common water inlet types of agricultural pumping stations.
Weixuan Jiao   +4 more
doaj   +1 more source

Vibration Modes and the Dynamic Behaviour of a Hydraulic Plunger Pump

open access: yesShock and Vibration, 2016
Mechanical vibrations and flow fluctuation give rise to complex interactive vibration mechanisms in hydraulic pumps. The working conditions for a hydraulic pump are therefore required to be improved in the design stage or as early as possible ...
Tianxiao Zhang, Nong Zhang
doaj   +1 more source

Measurement of pressure in hydraulics system of the ZTS 160 45 tractor

open access: yesResearch in Agricultural Engineering, 2005
This contribution is oriented on the field of dynamic loading analysis of three-point hitch of tractor hydraulic pump. The hydraulic pump is placed in circuit of three-point hitch of the tractor ZTS 160 45.
Z. Tkáč   +3 more
doaj   +1 more source

Derivation of near-optimal pump schedules for water distribution by simulated annealing [PDF]

open access: yes, 2004
The scheduling of pumps for clean water distribution is a partially discrete non-linear problem with many variables. The scheduling method described in this paper typically produces costs within 1% of a linear program-based solution, and can incorporate ...
McCormick, G, Powell, R S
core   +1 more source

Research on Pump Volute Design Method Using CFD

open access: yesInternational Journal of Rotating Machinery, 2011
Volute is an important hydraulic part of centrifugal pump, hydraulic loss within pump volute takes up a large part of total hydraulic loss within pump, thus appropriate design of pump volute has significant meaning to centrifugal pump performance.
Sunsheng Yang, Fanyu Kong, Bin Chen
doaj   +1 more source

Evaluation of Tribological Property for Hydraulic Fluid by Roller on Disk Test

open access: yesTribology Online, 2015
The effects of energy-saving hydraulic fluids are confirmed by not only many actual hydraulic systems but also bench tests using hydraulic pump. We have studied some laboratory evaluation methods that are simpler than bench test using hydraulic pump.
Yukiko Naka
doaj   +1 more source

Pumping hydraulic systems and the use of an unloading valve in a hydraulic system [PDF]

open access: yesE3S 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   +2 more
doaj   +1 more source

Experimental set-up for investigation of fault diagnosis of a centrifugal pump [PDF]

open access: yes, 2017
Centrifugal pumps are complex machines which can experience different types of fault. Condition monitoring can be used in centrifugal pump fault detection through vibration analysis for mechanical and hydraulic forces. Vibration analysis methods have the
Ali Saud Al Tobi, Maamer   +4 more
core   +1 more source

Degradation of Hydraulic System due to Wear Particles or Medium Test Dust

open access: yesApplied Sciences, 2023
Contamination in hydraulic systems is the cause of 70% of failures. This study highlights the performance degradation caused by solid particle contamination of hydraulic components: hydraulic gear pump, 4/3 valve, and orbital motor.
Nejc Novak   +3 more
doaj   +1 more source

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