Results 31 to 40 of about 14,675 (206)
Comparison Between Oil-Mist and Oil-Jet Lubrication of High-Speed, Small-Bore, Angular-Contact Ball Bearings [PDF]
Tribology Transactions, 2001 Parametric tests were conducted with an optimized 35-mm-bore-angular-contact ball bearing on a high-speed, high-temperature bearing tester. Results from both air-oil mist lubrication and oil-jet lubrication systems used to lubricate the bearing were compared to speeds of 2.5¥106 DN.
Stanley I. Pinel +2 more
openaire +1 more source
Journal of Applied Fluid Mechanics, 2023 To discuss the lubrication characteristics of roller-sliding bearing under oil-injected lubrication, the CFD method was introduced into the fluid-structure interaction model to realize the transient simulation of oil-air two-phase flow (OATPF). The volume of fluid (VOF) method is applied to capture the oil-air interface.
J. J. Zhang +4 more
openaire +2 more sources
二聚酸抗磨剂对航空煤油润滑性的影响Effects of dimer acid antiwear agent on lubricity of jet fuel
Zhongguo youzhi, 2023 为考察二聚酸抗磨剂对加氢精制航空煤油润滑性的改善作用，同时验证不同二聚酸抗磨剂的改善效果，分别采用桐油、棉籽油及妥尔油酸为原料进行了二聚酸的合成与精制，利用液相色谱仪、红外光谱仪、核磁共振波谱仪等验证了桐油基、棉籽油基及妥尔油酸基二聚酸的分子结构，采用球柱润滑性评定仪（BOCLE）法和高频往复试验机（HFRR）法考察了3种不同原料来源的二聚酸对航空煤油润滑性的改善作用，用显微镜分析试验球的磨痕形貌，并提出抗磨机制。结果表明：随着二聚酸添加量的不断增大，磨痕直径、表面划痕及深度不断减小；在BOCLE法中 ...
张雁玲， 王姝凡， 王宜迪， 杨卫亚， 李澜鹏， 曹长海 ZHANG Yanling, WANG Shufan, WANG Yidi, YANG Weiya, LI Lanpeng, CAO Changhai
doaj +1 more source
MachinesThe involute gear with variable tooth thickness lacks established methods for calculating meshing heat and studying oil-jet lubrication and cooling effects.
Huicheng Zhang, Yongping Liu, Junhai Guo
doaj +1 more source
Utilization of teflon and aluminum oxide for wheel cleaning in Minimum Quantity Lubrication (MQL) grinding [PDF]
Materials Research, 2013 Researches concerning cooling-lubrication optimization in grinding have been conducted to contribute to a more sustainable process. An alternative to flood coolant is minimum quantity lubrication (MQL), which spray oil droplets in a compressed air jet ...
Bianca Gomes Barros +4 more
doaj +2 more sources
Studies on Lubrication of Rolling Bearing with Oil Jet (1st Report)
Transactions of the Japan Society of Mechanical Engineers, 1955 Using the ball bearing 6307 instead of the roller bearing N 307, similar results to the first report have been obtained concerning the temperature rise, coefficient of friction, rate of heat transfer and the lowest allowable oil viscosity. The results of the grease lubrication which is antipodal to the forced lubrication in its nature are also added.
Fujio HIRANO, Eiichi OHTA, Tetsu FUJII
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Studies on Lubrication of Ball Bearing with Oil Jet (3rd Report)
Transactions of the Japan Society of Mechanical Engineers, 1953 In the previous paper we reported results of the experiment on forced lubrication for the purpose of cooling of ball bearing, but applied load on the bearing was light. We repeated the same experiment as previously reported at higher load. Further we measured change of electric contact between outer and linner races of the bearing and obtained some ...
Fujio HIRANO +3 more
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Novel Functional Materials via 3D Printing by Vat Photopolymerization
Advanced Functional Materials, EarlyView.This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov +3 more
wiley +1 more source
Lubricants, 2023 In the framework of the H2020 project IDERPLANE, aimed at providing innovative, effective, and validated criteria for the design and assessment of more reliable planet bearings for aerospace application analyzing the problem from a damage tolerance ...
Franco Concli, Marco N. Mastrone
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Advanced Functional Materials, EarlyView.We report a polymer‐chain insertion strategy to fabricate pore‐threaded MOF thin films with precisely tuned surface chemistry and wettability. Grafting n‐alkane chains into the pillared layer Cu2(bdc)2(dabco) MOF thin film's vertical nanochannels enhances water stability, and induces hydrophobicity and lubricant‐free, solid‐like slippery behavior ...
Angana Borbora +4 more
wiley +1 more source