RECENT DEVELOPMENTS IN AIRCRAFT ENGINE OIL FILTRATION

1957 ◽  
Vol 9 (5) ◽  
pp. 23-24
Keyword(s):  
Aircraft Engine ◽  
Engine Oil ◽  
Recent Developments ◽  
Oil Filtration

AIRCRAFT ENGINE LUBE OIL FILTRATION STUDY

1975 ◽  
Author(s):  
H. C. Mouwen ◽  
P. Duncan
Keyword(s):  
Aircraft Engine ◽  
Oil Filtration

High-Temperature Heat Pump for Aircraft Engine Oil Cooling

2019 ◽  
Vol 33 (2) ◽  
pp. 472-482 ◽  
Author(s):  
S. Maalouf ◽  
A. Isikveren ◽  
P. Dumoulin ◽  
N. Tauveron ◽  
N. Cotereau
Keyword(s):  
High Temperature ◽  
Heat Pump ◽  
Aircraft Engine ◽  
Engine Oil ◽  
Temperature Heat ◽  
High Temperature Heat Pump

Preparation and Oil Filtration Properties of Electrospun Nanofiber Composite Material

2014 ◽  
Vol 9 (4) ◽  
pp. 155892501400900 ◽  
Author(s):  
Jian Yong Feng ◽  
Jian Chun Zhang ◽  
Daxiang Yang
Keyword(s):  
Composite Material ◽  
Pressure Drop ◽  
Pore Diameter ◽  
Engine Oil ◽  
Electrospun Nanofiber ◽  
Nanofiber Composite ◽  
Automobile Engine ◽  
Pulp Paper ◽  
The Difference ◽  
Oil Filtration

In this paper, PVA electrospun nanofiber was prepared on the surface of three different automobile engine oil filtration materials including polyester nonwoven, glass fiber nonwoven, and cotton pulp filtration paper. It was found that the substrate of cotton pulp filtration paper and the nanofiber layer had better adhesive effect. Then we A comparison of fiber diameter, pore diameter, filtration accuracy and pressure drop between the cotton pulp paper and nanofiber composite filtration material was then made. The results show that the nanofiber composite material had smaller pore diameter and filtration accuracy, higher pressure drop, and better oil filtration property. Additionally, the difference of pressure drop between the substrate and nanofiber composite material increased with increasing flow rate of experimental oil. The goal of this paper was use the electrospun nanofiber in the automobile engine oil filtration.

scholarly journals Analysis and Testing of Debris Monitoring Sensors for Aircraft Lubrication Systems

Proceedings ◽  
2018 ◽  
Vol 2 (8) ◽  
pp. 461 ◽  
Author(s):  
Etienne Harkemanne ◽  
Olivier Berten ◽  
Patrick Hendrick
Keyword(s):  
Test Bench ◽  
Aircraft Engine ◽  
Engine Oil ◽  
Oil Lubrication ◽  
Aircraft Engines ◽  
Test Results ◽  
Functional Tests ◽  
Test Plan ◽  
Test Parameters ◽  
Oil Flow

In an aircraft engine, some pieces are describing a rotating movement. These parts are in contact with rotating and non-rotating parts through the bearings and gears. The different contact patches are lubricated with oil. During the lifetime of the engine, mechanical wear is produced between the contacts. This wear of the bearings and gears will produce some debris in the oil circuit of the engine. To ensure the effective operation of the aircraft engines, the debris monitoring sensors play a significant role. They detect and collect the debris in the oil. The analysis of the debris can give an indication of the overall health of the engine. The aim of the paper is to develop, design and model an oil test bench to simulate the oil lubrication circuit of an aircraft engine to test two different debris monitoring sensors. The methodology consists of studying the oil lubrication system of the aircraft engine. The first step is to build the oil test bench. Once the oil test bench is functional, tests are performed on the two debris monitoring sensors. A test plan is followed, three sizes of debris, like the type and sizes of debris found in the aircraft engine oil, are injected in the oil. The test parameters are the oil temperature, the oil flow rate and the mass of debris injected. Each time debris is injected, it is detected and caught by the two sensors. The test results given by the two sensors are similar to the mass debris injected into the oil circuit. The two sensors never detect the total mass of debris injected in the oil. On average, 55%–60% of the mass injected is detected and caught by the two sensors. The sensors are very efficient at detecting debris whose size corresponds to the design range parameters of the sensors, but the efficiency falls when detecting debris whose size lies outside this range.

RECENT DEVELOPMENTS IN AIR, LUBRICATING OIL, HYDRAULIC OIL AND FUEL OIL FILTRATION

1960 ◽  
Author(s):  
F. R. Gruner ◽  
H. L. Forman
Keyword(s):  
Fuel Oil ◽  
Lubricating Oil ◽  
Hydraulic Oil ◽  
Recent Developments ◽  
Oil Filtration

In Tune with Times: Recent Developments in Theoretical, Experimental and Numerical techniques of Aircraft Engines

2018 ◽  
Vol 7 (2) ◽  
pp. 805
Author(s):  
Armaan A. ◽  
Srinivas G.
Keyword(s):  
Performance Enhancement ◽  
Engine Performance ◽  
Aircraft Engine ◽  
Vital Role ◽  
Aircraft Engines ◽  
Holistic View ◽  
Air Breathing ◽  
Turbofan Engines ◽  
Recent Developments ◽  
Numerical Approaches

Today the aircraft engine designing and development work is increasing drastically. Especially aircraft engines play a vital role in order to decide the aircrafts speed and its performance. Broadly turbojet, turboprop, turbo shaft and turbofan engines comes under the category of air breathing engines. Every engine has its own purpose and application. But modern aircrafts require much more advancements. Designing a new aircraft engine has been a really challenging task to the researchers. But giving a complete holistic view of aircraft engines and research gap would definitely help a lot to the new designers. Once identified the drawbacks of engine performance can be corrected in the future. For any new design of aircraft engine researchers are suggested to take Theoretical, Experimental and Numerical approaches. Therefore present paper makes an effort to review complete recent Theoretical, Experimental and Numerical approaches which are followed till date. Under all the three approaches all the air breathing engines have been clearly explained and solicited. The effort is to identify the gaps between different approaches which are hampering the process of engine development. The paper also gives the research gaps that need to be incorporated for effective performance enhancement of the aircraft engines for aeromechanical features. 

A Review of Recent Developments in Aircraft Engine Fan Noise Analysis

1974 ◽  
Vol 6 (12) ◽  
pp. 3-14 ◽  
Author(s):  
M.E. Goldstein
Keyword(s):  
Noise Analysis ◽  
Aircraft Engine ◽  
Fan Noise ◽  
Recent Developments

Influence of Labyrinth Seal Leakage on the Turbine Support Cooling

2014 ◽  
Author(s):  
Alexandr S. Vinogradov ◽  
Renat R. Badykov
Keyword(s):  
Mutual Influence ◽  
Aircraft Engine ◽  
Labyrinth Seal ◽  
Engine Oil ◽  
Calculation Results ◽  
Different Temperatures ◽  
Supporting Element ◽  
Aviation Engines ◽  
Cooling Air ◽  
Quantity Of Heat

This paper presents a study of the seal of supporting element in aviation engines with consideration of the mutual influence of its leakage on parameters of internal air system and engine oil system. A method of seal leakage calculation was developed. It connects engine thermogasdynamics calculation, airflow hydraulics calculation and structural analysis of deformed parts. The main sources of heat transferred to the supporting element were determined; their numerical values and percentages for the compressor and turbine were also determined. This paper provides options of cooling the turbine support for realization of this method. A way of cooling the support determines the quantity of heat supplied to the support. Thus, this article analyzes the sources of heat. Comparison the amount of heat from different sources also is carried out. The amount of heat is defined the temperature of the cooling air. The article provides a comparison of calculation results for different temperatures of the cooling air. After selecting the geometry of the seal system, and determining of the total amount of heat, single seal from the system was researched. The main purpose of the paper is to explain the design of a single seal as part of whole seal system, which is used to cool the support of the aircraft engine.

Experimental Study on Two-Phase Flows in Scavenge Pump for Aircraft Engine Oil System

2016 ◽  
Author(s):  
Laurent Ippoliti ◽  
Olivier Berten ◽  
Patrick Hendrick
Keyword(s):  
Single Phase ◽  
Aircraft Engine ◽  
Engine Oil ◽  
Test Rig ◽  
Feed Pump ◽  
Two Phase ◽  
Turbofan Engine ◽  
Flow Capacity ◽  
Scavenge System ◽  
Phase Liquid

This work is the continuation of previous studies on gerotor-type pump performance in turbofan engine oil systems operated as feed pumps in single-phase liquid oil. The focus here is on scavenge pumps whose role is to pump a mix of air and oil. This paper is intended to present the modifications that had to be made on the test rig from the previous studies to model a scavenge system and more generally to add two-phase flow capacity. The paper presents results from the first successful experimental test campaign. The aim is to characterize the performance of a typical pump, already tested as a feed pump, in the scavenge system. The critical performance parameter studied is the volumetric efficiency which determines the size and weight of the pump. This paper ends by drawing conclusions on the rig and the results, and linking them with the previous single-phase flows studies.

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