Results 41 to 50 of about 25,042,350 (333)

Breakup of diminutive Rayleigh jets [PDF]

open access: yes, 2010
Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse   +7 more
core   +3 more sources

On high-speed turning of a third-generation gamma titanium aluminide [PDF]

open access: yes, 2012
Gamma titanium aluminides are heat-resistant intermetallic alloys predestined to be employed in components suffering from high mechanical stresses and thermal loads.
A Beranoagirre   +20 more
core   +1 more source

Numerical Modeling of Hydrodynamic Processes in the Gerotor Pump of the Lubrication System of Diesel Engines

open access: yesМеханика машин, механизмов и материалов
This article presents the results that serve as a methodological basis for creating a digital twin of a diesel engine lubrication system. At the first stage, mathematical and computer models have been created for the oil pump of the engine lubrication ...
Igor A. Popov   +6 more
doaj   +1 more source

Lubrication system of a roller cone bit [PDF]

open access: yesMATEC Web of Conferences, 2020
For drilling roller bits that work with face purging, a device for a circulating lubrication system is proposed through the use of a plunger pump. A constant circulation of the lubricant is realized with a performance proportional to the speed of the bit.
Simisinov Denis   +3 more
doaj   +1 more source

Synovial joint lubrication – does nature teach more effective engineering lubrication strategies? [PDF]

open access: yes, 2007
Nature shows numerous examples of systems which show energy efficiency, elegance in their design and optimum use of materials. Biomimetics is an emerging field of research in engineering and successes have been documented in the diverse fields of ...
Liskiewicz, T.   +3 more
core   +1 more source

Atomically thin MoS2 with ultra-low friction properties based on strong interface interaction

open access: yesFriction
Atomically thin lubrication materials with anti-friction properties are crucial for reducing energy consumption and extending the service life of micro/nanoelectromechanical systems (MEMS/NEMS).
Xinjian He   +10 more
doaj   +1 more source

ANALYSIS OF THE ACTUAL STATE LUBRICANT TO RESOURCE ELEMENTS CRUSHING AND GRINDING MACHINERY

open access: yesВестник СибАДИ, 2017
The probabilistic nature of resource allocation units, assembly units and parts of machines and equipment, including crushing and grinding, detects the presence of certain reserves in the improvement of preventive work the system for maintenance and ...
V. N. Kuznetsova, Ya. V. Yarmovich
doaj   +1 more source

Expander selection for an on board ORC energy recovery system [PDF]

open access: yes, 2017
This paper deals with the comparison between volumetric expanders (screw, scroll and rotary vane) and an Inlet Forward Radial (IFR) micro turbine for the exploitation of an on board Organic Rankine Cycle (ORC) energy recovery system.
Capata, Roberto, Fabio, Pantano
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Two-speed wheel-drive system without lubrication [PDF]

open access: yes, 1970
System based on sprockets and toothed belts provides high and low speeds in forward drive and high speed in reverse.
Burch, J. L.
core   +1 more source

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