Results 91 to 100 of about 1,534,066 (401)

Разработка систем дискретного гидропривода с тонким формированием импульсов расхода [PDF]

open access: yes, 2008
Приведен анализ существующих управляющих гидроаппаратов, обоснована необходимость разработки и производства нового класса гидроаппаратов дискретного действия, управляемых устройствами ЧПУ, дано описание конструкции и принципа работы дискретного ...
Das, Marco   +8 more
core   +2 more sources

Saving hydraulic drive of the grapple slewing gear in timber transport machines and improvement of its work processes

open access: yesIOP Conference Series: Earth and Environment, 2019
The research analysis of dynamics of technological machine work processes has been carried out. The aim of the work is improvement of work processes of the grapple slewing gear in forest transport machines by justification of energy saving hydraulic ...
I. Chetverikova, P. Popikov
semanticscholar   +1 more source

Personnel emergency carrier vehicle [PDF]

open access: yes, 1987
A personnel emergency carrier vehicle is disclosed which includes a vehicle frame supported on steerable front wheels and driven rear wheels. A supply of breathing air is connected to quick connect face mask coupling and umbilical cord couplings for ...
Fedor, Otto H., Owens, Lester J.
core   +1 more source

Improving the Reliability of Hydraulic Drives Components

open access: yesProcedia Engineering, 2017
Abstract This paper proposes a method for laboratory experiments, which allows controlling the technical state of high pressure hoses of hydraulic drives on the basis of the derived dependences of logarithmic decrement on operating time. Based on the developed method, the test bench for the study of the elastic properties of the hydraulic drive ...
K. E. Kozlov   +2 more
openaire   +2 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Modeling of Hydraulic Load of Electric Drive in Electrical Complex of Pumping Station

open access: yesEnergy Engineering and Control Systems, 2018
The paper analyses the contemporary state of the electric drive hydraulic load modelling in the pumping stations’ electrotechnical complex applications. It was found that in the vast majority of cases, mathematical models do not allow taking into account
Vladyslav Lysiak   +2 more
doaj   +1 more source

Efficient pressure-transformer for fluids [PDF]

open access: yes, 1970
Fluid transformer utilizes fluid under pressure at one level to drive series of free pistons in positive displacement pump. Pump in turn delivers hydraulic fluid at different pressure level to a load.
Morando, J. A.
core   +1 more source

The Frontiers of Aqueous Zinc–Iodine Batteries: A Comprehensive Review on Mechanisms, Optimization, and Industrial Prospects

open access: yesAdvanced Functional Materials, EarlyView.
This review provides an in‐depth understanding of all theoretical reaction mechanisms to date concerning zinc–iodine batteries. It revisits the inherent issues and solutions of zinc–iodine batteries from the perspective of industrial application. By integrating existing examples of energy storage applications, it identifies the challenges faced on the ...
Haokun Wen   +10 more
wiley   +1 more source

Modeling of dynamic characteristics for hydraulic drive under nonstationary load [PDF]

open access: yesE3S Web of Conferences
The methodology for estimating the transient response and frequency characteristics for volumetric hydraulic drive under nonstationary load is proposed.
Sokolov Vladimir, Krol Oleg
doaj   +1 more source

Modeling of working processes in the throttle-adjustable hydraulic drive of manipulation systems with separate movement of links during operation of mobile machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2018
The article discusses the functional-structural scheme and the mathematical model of the working hydrodynamic processes in the throttle-adjustable hydraulic drive of the technological cranes-manipulators.
Alexander V. Lagerev, Igor A. Lagerev
doaj   +1 more source

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