Results 11 to 20 of about 5,635 (264)

Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring [PDF]

open access: yesE3S Web of Conferences, 2021
To solve the practical problem of Stirling engine piston ring, numerical model on friction and lubrication were established based on average Reynolds equation theory.
Songjian Li   +3 more
doaj   +1 more source

Study on Sealing Characteristics of Compliant Foil Face Gas Seal under Typical Hypervelocity Gas Effects

open access: yesLubricants, 2023
In order to investigate the influence of typical hypervelocity gas effects on the gas lubrication performance of compliant foil face gas seal (CFFGS) end surfaces, the gas–elastic coupling lubrication theory model of CFFGS is modified by considering the ...
Yuan Chen   +5 more
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

Improvement of bearing support lubrication [PDF]

open access: yesVestnik MGTU, 2016
Gas turbine engine bearing supports is an important part in providing product efficiency of general and special-purpose engineering industry. Attempts are being made to increase efficiency of bearing support.
Shehovtseva E. V.
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

Analysis of Circulation Characteristics and Heat Balance of High-Speed Rolling Bearing under Oil-Air Lubrication

open access: yesLubricants, 2023
Aiming to solve the problem of oil-air lubrication failure caused by the high working temperature of high-speed rolling bearings, this study proposes a method, based on the theory of gas-solid two-phase flow and bearing tribology, of predicting the ...
Xiqiang Ma   +5 more
doaj   +1 more source

Simulation of Unsteady Flows of Oil/Gas in the Ventless Bearing Chamber of an Aero-Engine

open access: yesAerospace, 2022
The unsteady motion behavior of oil/gas two-phase flow in a novel ventless bearing chamber has significant impacts on the lubrication and heat transfer efficiency of bearings due to the various advantages of lower pressure levels and weaker rotating ...
Shaobai Li, Caixia Li, Wei Wang
doaj   +1 more source

Effect of Surrounding Gas on Cavitation in EHL

open access: yesTribology Online, 2009
Relationship between cavitation in elastohydrodynamic lubrication and surrounding gas was investigated in order to understand lubrication in various gas environments. Lubricated point contact sliding test was conducted in a sealed chamber.
Takefumi Otsu   +3 more
doaj   +1 more source

Flow field and sealing performance analysis of compliant foil face gas seal

open access: yesAdvances in Mechanical Engineering, 2022
Based on the theory of gas lubrication and elastic mechanics, a theoretical model of gas-elastic coupling lubrication of compliant foil face gas seal (CFFGS) is presented. The correlation between the film pressure and thickness of CFFGS and its effect on
Yuan Chen   +5 more
doaj   +1 more source

Modelling Tribochemical Reactions of Lubricants in the UHV Analytical Tribometer

open access: yesTribology Online, 2015
Gas Phase Lubrication (GPL) is used here to lubricate counterparts of a tribological system with a partial pressure of a gas. Because the rheological contribution (Hydrodynamic and EHL) of gas is practically negligible, the role of tribochemical ...
Maria Isabel De Barros-Bouchet   +5 more
doaj   +1 more source

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