Results 11 to 20 of about 532 (208)

Numerical Study on Influence of Hydrofoil Clearance Towards Total Drag Reduction on Winged Air Induction Pipe for Air Lubrication

open access: yesInternational Journal of Technology, 2020
A new device for air lubrication called the Winged Air Induction Pipe (WAIP) is studied in the present work. The device, which consists of an angled hydrofoil, uses the low-pressure region produced above the hydrofoil as a ship moves forward.
Yanuar   +4 more
doaj   +1 more source

The key technology of lubrication for screw motor in air directional drilling

open access: yesMeikuang Anquan, 2023
When the air directional drilling technology is used for drilling construction, whether the screw motor can be well lubricated is a key factor affecting its life.
LI Kun
doaj   +1 more source

Atomization Characteristics of Special-Design Pneumatic Two-Fluid Nozzles for Helicopter Main Reducers: A Numerical and Experimental Investigation

open access: yesAerospace, 2022
Oil mist lubrication can be utilized as an emergency lubrication system in the main reducer of a helicopter. A special-design pneumatic two-fluid nozzle is the crucial system component for atomizing lubricant oil, so exploring the atomization ...
He Liu, Huiyun Cheng, Yu Dai, Xiang Zhu
doaj   +1 more source

Development and application of intelligent multi-functional dust removal system for air directional drilling

open access: yesMeikuang Anquan, 2023
In order to solve the problems of dust pollution, poor lubrication of screw motor and overtemperature in the hole during air directional drilling in broken soft coal seams, an intelligent multifunctional dust removal system was developed for the first ...
LI Kun, ZHANG Jie
doaj   +1 more source

Optimization Study of Gear Oil-air Lubrication Parameters Based on Orthogonal Test Method

open access: yesJixie chuandong, 2022
In order to provide a feasible lubrication means under starved condition, the gear transmission effect and the optimal oil-air parameters using oil-air lubrication are explored.
Chang Lu   +3 more
doaj  

Coupled Level-Set and Volume of Fluid (CLSVOF) Solver for Air Lubrication Method of a Flat Plate

open access: yesJournal of Marine Science and Engineering, 2021
With the implementation of the energy efficiency design index (EEDI) by the International Maritime Organization (IMO), the goal of which is to reduce greenhouse gas (GHG) emissions, interest in energy saving devices (ESDs) is increasing.
Huichan Kim, Sunho Park
doaj   +1 more source

A multiphase flow study for lubrication characteristics on the internal flow pattern of ball bearing

open access: yesResults in Engineering, 2023
This work proposes a general method for establishing the lubrication analysis model of ball bearing and the oil-air multiphase flow characteristics inside ball bearing is revealed by CFD. Based on the geometric feature, the micro-clearance in the chamber
Wentao Shan   +5 more
doaj   +1 more source

Determination of temperature mode of rotary bearings of gas turbine engine with air and fuel lubrication system [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2020
The article is devoted to the problem of choosing the optimal parameters of the air-fuel mixture in gas turbine engines (GTE) with the air-fuel lubrication system.
V. N. Klimov   +3 more
doaj   +1 more source

Tribological behavior of aeronautical steel under oil–air lubrication containing extreme-pressure and anti-wear additives

open access: yesAdvances in Mechanical Engineering, 2016
If the lubrication system of a helicopter reducer is compromised, its gears and bearings will be in a working state without lubricating oil, which causes the reducer to be damaged in a very short time.
Wen Guan   +4 more
doaj   +1 more source

Discharge of lubricant from air turbine handpieces [PDF]

open access: yesBritish Dental Journal, 2005
To demonstrate and quantify the discharge of lubricating oil from high-speed air turbine handpieces whilst running.Dye-marked oil (Kavospray, KaVo) was used to lubricate four handpieces (Quiet-Air, Midwest) and the air discharged from around the lower bearing was directed at the moving chart paper on a recorder whilst running for 40 minutes.
Pong, ASM, Dyson, JE, Darvell, BW
openaire   +4 more sources

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