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2015-08-18 ...
  • August 18-19, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • November 2-3, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Improving vehicular fuel efficiency is of paramount importance to the global economy. Governmental regulations, climate change and associated health concerns, as well as the drive towards energy independence, have created a technical need to achieve greater fuel efficiency. While vehicle manufacturers are focusing efforts on improved combustion strategies, smaller displacement engines, weight reduction, low friction surfaces, etc., the research involved in developing fuel efficient engine oils has been less publicized.
2015-05-15
Book
This is the electronic format of the Journal.
2015-04-21
Event
The industry continues to work on understanding the interaction of lubricating fluids with engine hardware in order to improve vehicle efficiency, durability, and performance. The Engine Lubricants Session presents a variety of papers dealing with advances in engine oils and their relationship to improved hardware performance.
2015-04-15
Book
This is the electronic format of the Journal.
2015-04-14
Technical Paper
2015-01-0966
Sauhard Singh, Anil Bhardwaj, Reji Mathai, A K Sehgal, R Suresh, B P Das, Nishant Tyagi, Jaywant Mohite, N B Chougule
The ever increasing demand of fuels for vehicles can only be met by use of alternate fuels like Compressed Natural Gas (CNG) and Hydrogen (H2). The hydrogen enriched CNG fuel referred to as HCNG has the potential to lower emissions and is considered to be the first step towards promotion of a Hydrogen economy. While, automotive industry matures up with the usage of new engines, lubricant manufacturers are also moving on to the next stage by formulating oils to be used in gas engines such as CNG, HCNG etc. This paper presents the evaluation of gas engine oil on 6-cylinder heavy duty CNG engine using 18 percent HCNG. The six cylinder engine was chosen due to its importance for urban bus transportation. The engine was optimized for using HCNG fuel. Initial performance of the engine using HCNG was compared vis-à-vis CNG and, thereafter, the engine was subjected to endurance test of 500 hours as per 8 mode engine simulated driving cycle.
2015-04-14
Journal Article
2015-01-0967
Tingjun Hu, Ho Teng, Xuwei Luo, Bin Chen
Turbocharged gasoline direct injection (GTDI) engines have a flat torque curve with the maximum torque covering a wide engine speed range. Increasing the high-speed-end torque for a GTDI engine provides better acceleration performance to the vehicle powered by the engine but it also leads to longer injection durations to deliver the fuel requested. In this study, results are reported of experimental investigation of impact of fuel injection on dilution of the crankcase oil for a highly-boosted GTDI engine lubricated with SAE 5W30 synthetic engine oil. It is found that the high-speed-end torque for the GTDI engine has a significant influence on fuel dilution because longer injection durations result in impingement of large fuel drops on the piston top and considerable levels of fuel dilution. Test results indicate that the higher the torque at the rated-power, the higher the level of fuel dilution.
2015-04-14
Technical Paper
2015-01-1285
Dingfeng Deng, Fanghui Shi, Louis Begin, Isaac Du
Several instances have occurred where the outer surface of turbocharger fully floating journal bearing bushings have exhibited damage from oil debris resulting in loud constant tone noises and subsequent warranty claims. This paper studies the effect of oil debris in Turbocharger journal bearings on Subsynchronous NVH. A CFD model is built to study the behavior of oil debris particles with different sizes. The oil debris particles tend to navigate to the inner film or outer film of bearing bushing depending on the drag and centrifugal forces. It is found that the dominant centrifugal forces prevent larger particles from reaching the inner film while smaller particles travel more easily to the inner film. It is also found that the turbine side is more likely to become damaged from debris than the compressor side bearing due to higher temperatures. A tribology analysis is executed to determine the effect of oil debris particles on the speed ratio of the bearing bushing to the shaft.
2015-04-14
Journal Article
2015-01-0684
Sarah M. Lundgren, Katja Eriksson, Brenda Rossenaar
For years amine surfactants, such as primary amines, ethoxlyated amines and poly amines, have been used as friction modifiers in lubricating oils. This paper describes the boosting effect of adding small amounts of molybdenum dithiocarbamate (MoDTC) to amine containing lubricating oils. It is shown that MoDTC improves the friction, measured by minitraction machine (MTM), of tallow propanediamine (Duomeen® T) and tallow dipropylenetriamine (Triameen® T) while not for tallow amine (Armeen® T). It is argued that the packing of the tallow amine does not allow MoDTC to reach the surface and to create molybdenum disulphide (MoS2) sheets. Tallow propanediamine and tallow dipropylenetriamine have more nitrogen groups and cannot pack as closely at the surface and allow MoS2 sheets to form. To validate the theory scanning electron microscopy (SEM) has been used to determine the amount of sulphur in the tribo film.
2015-04-14
Journal Article
2015-01-0683
Jiman Han, Qian Zou, Gary Barber, Xichen Sun
This paper describes the scuffing tests performed to understand the effect of surface roughness and lubrication on scuffing behavior for austempered ductile iron (ADI) material. As the scuffing tendency is increased, metal-to-metal interaction between contacting surfaces is increased. Lubrication between sliding surfaces becomes the boundary or mixed lubrication condition. Oil film breakdown leads to scuffing failure with the critical load. Hence, the role of surface roughness and lubrication becomes prominent in scuffing study. There are some studies in which the influence of the surface roughness and lubrication on scuffing was evaluated. However, no comprehensive scuffing study has been found in the literature regarding the effect of surface roughness and lubrication on scuffing behavior of ADI material. The current research took into account the inferences of surface roughness and lubrication on scuffing for ADI.
2015-04-14
Journal Article
2015-01-0753
Max Magar, Ulrich Spicher, Stefan Palaveev, Marcus Gohl, Gunther Müller, Christian Lensch-Franzen, Jens Hadler
Downsizing is a promising concept to increase the efficiency of SI engines. A reduction of the engine’s displacement provides a shift of the operating range towards higher loads. The loss of power output in the full load regime related to the decrease of the displacement is compensated by applying a boosting strategy. The resulting increase of the pressure provoking elevated temperatures in the combustion chamber promotes the occurrence of abnormal combustion events. In addition to the “regular” knocking combustion low speed preignition has recently become a rather prominent issue in the development of SI engines. Low speed preignition refers to uncontrolled and stochastically appearing auto-ignition events that are observed before sparking. Low speed preignition is typically observed in highly boosted SI engines and preferably at high load and low speed conditions. In general low speed preignition occurs as intermittent series of several events.
2015-04-14
Technical Paper
2015-01-0755
Yasuo Moriyoshi, Toshio Yamada, Daisuke Tsunoda, Mingzhao Xie, Tatsuya Kuboyama, Koji Morikawa
2D and 3D numerical simulations were conducted in order to understand and quantitatively clarify the possibility of several causes such as deposit, oil droplet and some particle. The possibility that CaCO3 additive to lubricant oil behaves to change into CaO in combustion process and exothermic reaction is occurred with adsorption of CO2 in following process was suggested as a main cause of LSPI. Finally we understand that CaO particle, oil droplet and deposit seem to be the main causes of 1st LSPI and deposit and CaO particle seem to be the main causes of 2nd and later LSPI cycles.
2015-03-17
Event
2015-03-17
Event
2015-03-16
Event
2015-02-18
Standard
J1423_201502
This SAE Recommended Practice was developed cooperatively by SAE, ASTM, and API to define and identify Energy Conserving or Resource Conserving engine oils for passenger cars, vans, sport utility vehicles, and light-duty (3856 kg [8500 lb] GVW or less) trucks.
2015-01-22
WIP Standard
ARP5996C
This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.
2015-01-20
Standard
J300_201501
This SAE Standard defines the limits for a classification of engine lubricating oils in rheological terms only. Other oil characteristics are not considered or included.
2015-01-14
Technical Paper
2015-26-0064
Asmita Manwatkar, Prasad S Phale, Moqtik Ashok Bawase, Mangesh Ramesh Saraf
Abstract Used oil analysis plays an important role in the field of engine development, considering that it can give brief idea about performance of lubricant/ oil being used, its compatibility with the system under considerations. At present, regular testing is done like elemental analysis using Inductive Coupled Plasma (ICP) which can give idea about wear elements and additive elements. But it does not give information on morphological characterization of particles. In present work, Environmental Scanning Electron Microscopy technique with EDAX detector is used for characterizing the used oil. Oil is filtered on suitable paper and the particles collected on paper are analyzed. This gives the information on morphology and size of particles, their elemental analysis and mapping so that the sources can be judged. Size of wear metal particle is very important factor as even few bigger size particles are more detrimental than large number of smaller particles.
2015-01-09
WIP Standard
AS5780C
This specification defines basic physical, chemical, and performance limits for 5 cSt grades of gas turbine engine lubricating oils used in aero and aero-derived marine and industrial applications, along with standard test methods and requirements for laboratories performing them. It also defines the quality control requirements to assure batch conformance and materials traceability, and the procedures to manage and communicate changes in oil formulation and brand. This specification invokes the Performance Review Institute (PRI) product qualification process. Requests for submittal information may be made to the PRI at the address in Appendix C, referencing this specification. Products qualified to this specification are listed on a Qualified Products List (QPL) managed by the PRI. Additional tests and evaluations may be required by individual equipment builders before an oil is approved for use in their equipment.
2014-12-30
Video
Low viscosity enables higher processing speed in the production of composites.
2014-12-28
Standard
AS1701E
This document covers the performance requirements for solid dry film lubricants, air dried, or heat cured for use in aerospace applications. These lubricants are intended to prevent galling, and may be capable of remaining effective for extended periods of time after exposure to extreme environmental conditions.
2014-11-20
Event
This session contains a variety of presentations regarding engine oil technologies developed for small engines. There are three papers addressing new lubricants for motorcycles ranging from increasing engine power, to new high performance oils needed to meet the every increasing demand of new low emission engines. There are also two papers to address reducing friction and wear required for energy conserving performance in small engines.
2014-11-18
Magazine
Oil debris monitoring in aero engines In a gas turbine engine, small particles or "chips" are generated at the point of wear, serving as an advanced warning that catastrophic failure will occur if the wear is not addressed. Health monitoring systems, such as oil debris monitoring, are used to find these small particles so that the wear can be resolved before it's too late. Indigenous powertrain development Customer needs and expectations on drivability, fuel economy, and safety has pushed Indian and multinational OEMs to think about the development of powertrains and gearboxes for local needs with global standards. The next wave of crash simulation As computing speed has improved and software itself has made significant speed and performance gains with each release, modeling tools are now quick enough to build high-quality, large, high-detail vehicle models in a very efficient manner.
2014-11-11
Technical Paper
2014-32-0037
Stefano Bernardi, Marco Ferrari, Dario Catanese
Abstract Many two stroke engine for hand-held applications are equipped with muffler that contain a catalyst in order to reduce emissions. However, one of the main problems, is to mantain the performances of the catalyst over time; this often leads to the adoption of systems with increased culling oversized issues related to weight, dimensions and temperature. One of the major causes of degradation of the catalyst is derived from elements of poison present in the oil mixture. This study showed the results obtained by comparing different types of oils of mixture, through durability tests carried out on an engine of a brush cutter.
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