Results 11 to 20 of about 183,763 (307)

Numerical simulation of three-phase flow in an external gear pump using immersed boundary approach [PDF]

open access: yes, 2019
This paper presents a three-phase fully compressible model applied along with an immersed boundary model for predicting cavitation occurring in a two dimensional gear pump in the presence of non-condensable gas (NCG).
Gavaises, M.   +3 more
core   +1 more source

SIMULATION OF AN EXTERNAL GEAR PUMP AND EXPERIMENTAL VERIFICATION

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 1989
A detailed simulation program is presented for investigating the performances of an external gear pump. The geometrical aspects and the differential equations representing the quasi-steady state mathematical model of the pump are accounted for and discussed.
MANCO', Salvatore, NERVEGNA, Nicola
openaire   +3 more sources

Design Method with High Comprehensive Performance for External Gear-pumps and Gear-motors

open access: yesJixie chuandong
Under the premise of ensuring constant output capacity and equal displacement, in order to improve the comprehensive performance of the external gear-pumps and gear-motors, the relation between the constructed equal displacement and gear profile ...
Li Yulong, Liu Ping, Shi Yunyang
doaj   +1 more source

BS-ISO helical gear fatigue life estimation and wear quantitative features analysis [PDF]

open access: yes, 2009
Original article can be found at: http://www3.interscience.wiley.com/ Copyright Blackwell Publishing. DOI: 10.1111/j.1475-1305.2008.00457.xLack of representative theoretical models for gear wear causes difficulties in their useful lifetime prediction ...
Bostjan   +6 more
core   +1 more source

External Gear Pump Performance With Graphene Hydraulic Fluid

open access: yesASME/BATH 2023 Symposium on Fluid Power and Motion Control, 2023
Abstract The literature reports that the addition of nanoparticles to hydraulic fluids significantly improves their fundamental properties such as viscosity index, lubricity, and anti-wear performance. Among the others, graphene-based nanomaterials are a potential candidate for hydraulic nanofluids due to their atomic thickness, high ...
Chiavola O.   +3 more
openaire   +3 more sources

A new manual wheelchair propulsion system with self-locking capability on ramps [PDF]

open access: yes, 2018
A wheelchair user faces many difficulties in their everyday attempts to use ramps, especially those of some length. The present work describes the design and build of a propulsion system for manual wheelchairs for use in ascending or descending long ...
Alonso, Francisco Javier   +3 more
core   +3 more sources

Dynamic modeling of three-phase upflow fixed-bed reactor including pore diffusion [PDF]

open access: yes, 2002
The dynamics of a three-phase upflow fixed-bed reactor are investigated using a non-isothermal heterogeneous model including gas–liquid and liquid–solid mass transfer and diffusion/reaction phenomena inside the catalyst.
A.M Wilhelm   +16 more
core   +4 more sources

Vibration Characteristics of the Gear–Rotor-Bearing Transmission System Under External Impacts

open access: yesMachines
Many industrial machines inevitably suffer from external impacts which can change the meshing state of gears and thus affect the vibration characteristics of the gear transmission system.
Wenbing Tu   +5 more
doaj   +1 more source

Study of non-stationary cutting processes in power skiving

open access: yesActa Polytechnica
The paper presents the results of the modelling and study of the cutting process in the cut-in phase during the machining of external gears by the power skiving.
Ihor Hrytsai, Andrii Slipchuk
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

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