Study on Wear Mechanism by Soot Contaminated in Engine Oil (First Report: Relation Between Characteristics of Used Oil and Wear)

Author(s):  
Hiromitsu Sato ◽  
Naochika Tokuoka ◽  
Hidetsugu Yamamoto ◽  
Miki Sasaki
2019 ◽  
Vol 26 (01) ◽  
pp. 157-162
Author(s):  
Davaasuren G ◽  
Gantulga G

It is vitally important for vehicle users that are to study the operating regime that may negative effect to the operation of the engine, to reduce its effect, to maintain the engine's reliability in accordance with the specific operating conditions. Quality of lubrication is one of the main factors that are improving of reliability and operational efficiency for any machinery their spare parts. So this paper presents to optimize of oil change intervals and to determine of wear rating of spare parts by content of metal particles in the internal combustion engine used oil. Дотоод шаталтат хөдөлгүүрийн тос солих хугацааг оновчлох нь Хураангуй:  Машин ашиглагчдын хувьд тухайн хөдөлгүүрийн ажиллагаанд сөрөг нөлөө үзүүлэх  ашиглалтын горимыг судалж, түүний хор нөлөөг багасгах болон ашиглалтын өвөрмөц  нөхцөлд тохируулан хөдөлгүүрийн найдварт ажиллагааг ханган зөв, ашигтай ажиллуулах  чадвартай байх нь асар их ач холбогдолтой юм. Аливаа машин техник , тэдгээрийн агрегат,  зангилаа эд ангийн удаан эдлэхүй, найдвартай ажиллагааг хангах, ашиглалтын үр ашгийг  дээшлүүлэх гол хүчин зүйлүүдийн нэг нь тосолгооны чанар байдаг учраас дотоод шаталтат  хөдөлгүүрийн ашигласан тосон дахь металлын агууламжыг илрүүлж, эд ангийн элэгдлийн  явцыг тодорхойлон, тос солих хугацааг оновчлох асуудлыг судалгааны хүрээнд авч үзлээ.  Түлхүүр үг: Хөдөлгүүрийн ашигласан тосны шинжилгээ, металл хольц, тосны бохирдол,  тортог, элэгдлийн элементийн хязгаар 


2019 ◽  
Vol 8 (4) ◽  
pp. 6383-6388

The aim of this research is to investigate the usage of passenger car engine oil into a motorcycle engine by determining the after effect of the lubricant to the engine. The difference between engine oil of passenger car and motorcycle is the friction modifier that is in the formulation of cars engine lubricant. A motorcycle engine has a wet clutch system in the crank case, such engine oil with a friction modifier will decrease the clutch capacity of the system. In this study, three types of methodology tests have been conducted such as endurance test which combined with the fuel efficiency test at the same time, drag test and Ferrography tests that were conducted to determine the amount of contamination in both types of engine oil. The results showed that using a passenger car lubricant on motorcycle engine did not affect the engine compartment and parts. The numbers of metal wear in the used oil of both types of cars and motorcycle were slightly different.


2018 ◽  
Vol 31 (1) ◽  
pp. 124
Author(s):  
Rawnaq Qahtan Abdul Kareem ◽  
Khalid W. Salih Al-Janabi

    The accreditation of a fast, inexpensive, and simple way to discriminate between different kinds of oils and their efficacy “degree of consumption (DoC)” has been developed. The fluorescence spectroscopy provides a reliable method for oil inspection without resorting to tedious separation. Different new and used oil samples available in the local Iraqi market were investigated. While the challenge is to build a directory containing data of all the oils available in the local market. This method expected to control the falsified (forged) trademarks of motor oils and to discriminate between different oils. The excitation-emission spectra of oil samples were determined in the range of 200 – 600 nm. The effect of the presence of trace metals on the fluorescence intensity of oils was considered by adding few milligrams of (Cu, Al, Fe) to the diluted oil solution. No major effect noticed on fluorescence intensity. The research suggests installing a simple Spectrofluorometer into vehicles to check the DoC of the oil regularly and to notify the driver exactly when to replace the engine oil. The obtained results indicate the applicability to execute such gadget to be installed in the vehicles for routine detection of the engine oil quality and its degree of consumption DoC. As well as demonstrate the potential of the technique in oil identification and could be further developed.


Author(s):  
Н.Я. Синявский ◽  
А.М. Иванов ◽  
Н.А. Кострикова

В данной статье предпринята удачная попытка комплексирования магнитооптического метода и метода фотонной корреляционной спектроскопии для регистрации ферромагнитных частиц продуктов износа дизельного двигателя и определения их дисперсных характеристик. Такой подход позволяет фиксировать низкое содержание магнитных наноразмерных частиц и их дисперсность в отработанном судовом моторном масле, является новым и решает актуальную задачу. Выполнены эксперименты по наблюдению продольного магнитооптического эффекта Фарадея в модельной магнитной жидкости и в отработанном моторном масле. Показано, что низкая концентрация магнитных частиц в отработанном масле не позволяет наблюдать в нем эффект вращения плоскости поляризации в магнитном поле. Для измерения крупных частиц износа, смытых с фильтрующего элемента масляного фильтра, использовались закономерности процесса осаждения частиц в растворе и регистрация поглощения света, изменяющегося со временем. Полученные результаты позволяют получать важную информацию о состоянии и неисправностях деталей и механизмов двигателя по содержанию частиц износа в отработанном масле. In this article, a successful attempt has been made to combine the magneto-optical method and the method of photon correlation spectroscopy to register ferromagnetic particles of diesel engine wear products and determine their disperse characteristics. This approach makes it possible to record a low content of magnetic nanosized particles and their dispersion in used marine engine oil, is new and solves an urgent problem. Experiments on observation of the longitudinal magneto-optical Faraday effect in a model magnetic fluid and in used engine oil have been carried out. It is shown that the low concentration of magnetic particles in the waste oil does not allow observing the effect of rotation of the plane of polarization in a magnetic field. To measure large wear particles washed away from the filter element of the oil filter, we used the regularities of the process of particle sedimentation in solution and the registration of light absorption that changes over time. The results obtained make it possible to obtain important information on the condition and malfunctions of engine parts and mechanisms by the content of wear particles in the used oil.


2012 ◽  
Vol 507 ◽  
pp. 16-20
Author(s):  
Jian Yong Feng ◽  
Jian Chun Zhang ◽  
Hua Zhang ◽  
Da Xiang Yang

With regard to the car engine oil filter materials,it is necessary to possess a certain fiber diameter to achieve a preferable porosity and filtration effect.According to the investigation of commonly used oil filter materials in the market,this thesis is firstly selected ten kinds of various automobile oil filter material and then tested their fiber diameter,the main results have the maximum fiber diameter,the minimum fiber diameter and the average fiber diameter,however,the three results are not certain of the relationship.So through the linear regression method to discuss the quantitative mathematical relationship among them and to estabilish a theoretical calculation formula to compute them.


2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900
Author(s):  
Jian Yong Feng ◽  
Jianchun Zhang

The main purposes of this paper are to research the structure and property of commonly used oil filtration materials on the basis of the hierarchical cluster method and to develop new filter material. For this objective we selected ten different oil filtration materials and made a comparison of their filtration properties. In addition, the hierarchical cluster method was used to classify these ten oil filtration materials into three different categories. Objective classification results in the case of data matrix of different properties had a rather accurate result, which was almost consistent with the result of subjective classification. It was found that three different kinds of filtration material had different structures and properties in practical application. In addition, the results indicate that the filtration property of the new filter developed on the basis of hierarchical cluster analysis was very close to the first material.


2019 ◽  
Vol 179 (4) ◽  
pp. 136-141
Author(s):  
Janusz SEMIKOW ◽  
Jakub SUMERA

Article presents the results of long-term testing of prototype of 64 kVA biogas cogeneration set (CHP – Combined Heat and Power), build with support of financial means from the MCP R&D program 1 2 1. Between others, the impact of fueling with biogas from the sewage treatment plant on the engine oil has been investigated. Used oil analyses unveiled adverse presence of silicon compounds, i.e. siloxanes, permissible level of which (according to MAN standard) was exceeded several times. In order to reduce these compounds, prototype biogas filter based on activated carbon has been developed. Based on initial calculations, overall efficiency of this cogeneration set is circa 70%. For the consumer needs, the entire installation is enclosed in a compact soundproof canopy. Besides environmental merits, the cogeneration set shows also economical advantages. If operating continuously, the gen-set CHP would produce electrical and heat power in an amount that its purchasing cost would be returned after about 12 months, under condition of having biogas.


Author(s):  
Abdel Gadir Abdel Gabar ALLA Jabo ◽  
Dr. Midhat Victor Eskandar

Engines are the main part of power plants. The performance of the engine depends upon the good condition of the components like cylinders, cylinder heads, pistons, piston rings, valves, and connecting rods, etc. The failure of engine components can be reduced by using condition monitoring techniques. There are many types of condition monitoring techniques are available. The famous Non-destructive Tests (NDTs) for engines condition monitoring are including vibration analysis, infrared thermography, and engine used oil analysis. The aim of this research is to reduce the failures of engine components by analyzing the used oil. Oil is the lifeblood of engines. Much like doctors assess human health through blood analysis, engine components can be monitored in much the same manner. Engine oil analysis means testing a sample of engine oil in unused or used condition. Analysis is done for various properties like Viscosity, Total Base Number (TBN), Total Acid Number (TAN), Ash Content, Flash Point, Water Content, Contamination, and Wear Metal particles which used to monitor the wear rate of engine components. The result of the analysis is then compared with the given analysis limits to assess the quality of lubricant and the possibility of further using, or not. The properties of oil will be changed based on engine running hours. The used oil can be collected from engine after various running hours for analyzing, and the test result is used to assess the condition of engine and oil quality, then maintenance decision will be made according to those results. This optimization of maintenance activities will result in a reasonable cost reduction by increasing the interval of lubricant replacing and saving time and efforts of maintenance authorities.


2007 ◽  
Author(s):  
Naoto Koyamaishi ◽  
Tetsushi Suzuki ◽  
Ryuichiro Kamioka ◽  
Motoichi Murakami ◽  
Minoru Yamashita ◽  
...  
Keyword(s):  

Author(s):  
Frederick W. Girshick

This paper presents the results of a field test comparing four engine oil formulations in commercial landfill service for 16 months. The major differences among the oils were combustion chamber deposit control and oil consumption control, whose mechanism is likely to be control of liner deposits. Control of these deposits led to extension of the time between top-end overhauls. Control of used oil parameters, such as acid and base numbers, was achieved, allowing extended oil drain intervals. The requirements for engine oils in reciprocating internal combustion engines in landfill service will be reviewed briefly. The development of a new generation of engine oils for landfill service will be presented, including deployment of detergent chemistry previously unused in this application. The theoretical justification and preliminary screener testing of this chemistry justified the full scale field testing which is shown. This chemistry has since been commercialized by several oil companies. The operational benefits of engine oils specifically designed for this service will be discussed.


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