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Viewing 1 to 30 of 3787
2016-04-12
Event
This session reviews advancements in heavy-duty engine oil technology and test methodology, focusing on achieving future emissions, durability and fuel efficiency expectations both in North America and Europe.
2016-04-12
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.
2016-04-12
Event
In the industry there is continuing work on understanding the interaction of lubricating fluids with driveline hardware and on improving the fluids used in these applications. In this session are presented a variety of papers dealing with different applications where the interaction of driveline fluids with equipment is important.
2016-03-14 ...
  • March 14-15, 2016 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Lubricating fluids are the lifeblood of modern engines, performing numerous vital functions from reducing system friction, temperature, and fuel consumption to minimizing tailpipe emissions. This comprehensive seminar covers the latest developments in lubricating fluids technologies and explores the relationships between lubricating fluids and emissions, after-treatment devices, bio-fuels, and fuel economy. Fundamentals of crankcase lubrication, including the properties and performance requirements of global base stocks and lubricants will be covered.
2015-11-02 ...
  • November 2-3, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • April 25-26, 2016 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • October 27-28, 2016 (8:30 a.m. - 4:30 p.m.) - Baltimore, Maryland
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.
2015-10-27
Event
2015-10-27
Event
2015-10-27
Event
Shell GTL base oils are high quality Group III base oils with superior low-temperature viscometrics and volatility properties compared with other typical Group III base oils. Improved low temperature properties of Shell GTL base oils provides formulation capability in the areas of cold start, fuel economy and deposit control. Combined with reduced volatility, Shell GTL base oils provide a cost-effective route to deliver superior fuel economy oil formulation. A significant amount of development work has taken place over many years, proving the performance capability of Shell GTL base oils in a wide variety of applications.
2015-10-27
Event
OEMs and automatic transmission (AT) manufacturers are exploring ultra-low viscosity AT fluids (KV100 < 4.8cSt) for their future designs in an effort to increase efficiency. Manufacturing logistics can be simplified if those same ULV fluids could be used in current and legacy transmissions as well. While future designs can be adjusted to enable the use of ULV fluids there are concerns whether the durability of existing transmissions would be compromised with the use of such fluids. This presentation discusses several of the technical hurdles which need to be overcome when using ultra-low viscosity AT fluids and highlights new AT technology that enables an ultra-low viscosity AT fluid to be used effectively in future as well as current transmissions. New formulating strategies enable both new transmission designs while delivering protection for current transmissions.
2015-10-14
Event
2015-09-29
Technical Paper
2015-01-2876
Shankar Patil, P Mahesh, Krishnan Sadagopan, Senniappan Arunachalam Gokhul
In a tropical conditions , over a period of several months using 12 Nos. of New Generation 9-15T Intermediate Commercial Vehicles built with 4-Cyl 120HP BS3 Diesel engines run at regular interval from zero to 60000 Km. Field run data composed and analyzed with Intended Duty cycle for engine oil drain life estimation . The ICV trucks with sump capacity 0.083- 0.104 Liter/hp and SAE 15W40 viscosity of oil meeting API CH-4, API CI-4+ from group –I and Group-II base stocks are considered. The engine wear is more a function of silica concentration, load factor and age than the API category of oil. Oil drain interval is found proportional to the sump volume for the same stress on oil. Iron concentration and kinematic viscosity decide useful oil life with respect to the limits fixed by the engine manufacturer. In tropical conditions, field trials are carried out on 10T payload vehicles at higher temperature, humidity, dust levels and load factor than the other hemisphere conditions.
2015-09-29
Technical Paper
2015-01-2811
Tingjun Hu, Ho Teng, Xuwei Luo, Chun Lu, Jiankun Luo
When highly boosted, turbocharged gasoline direct injection (TGDI) engines can have torque curves comparable to those of light-duty (LD) diesel engines. Hence, applications of TGDI engines have been considered to be extended from passenger cars to LD vehicles, such as Ford F150 and E150. Most modern TGDI engines employ homogeneous mixture combustion with an injection pressure  150 bar typically. Under this combustion mode, two challenges having to be faced in the engine development are: 1) fuel dilution of the crankcase oil due to interactions of fuel sprays with the cylinder wall as a result of spray impingement on the cylinder wall or on the piston top when the fuel demand is high or fuel condensation during the warmup phase; 2) low-speed pre-ignition (LSPI) at high loads and low speeds, which often leads to a severe knock combustion known as the super knock. It is widely believed that LSPI is triggered by self ignition of oil particles entered the engine cylinder.
2015-09-11
Event
2015-09-06
Technical Paper
2015-24-2535
Andreas Behn, Matthias Feindt, Gerhard Matz, Sven Krause, Marcus Gohl
Abstract The limitation of fuel entry into the oil sump of an internal combustion engine during operation is important to preserve the tribological properties of the lubricant and limit component wear. For observation and quantification of the effects leading to fuel entry, a highly sensitive and versatile measurement system is essential. While oil sampling from the sump followed by laboratory analysis is a common procedure, there is no system for automatic sampling of all the positions and fast online analysis of the samples. For the research project ‘Fuel in Oil’, a measurement system was developed especially for the described tasks. The system is placed next to the engine in the test cell. Sampling points are the target point of the fuel injector jet and the liner below, the oil sump and the crankcase ventilation system.
2015-09-06
Technical Paper
2015-24-2534
Jochen Bregar, Adrian Rienäcker, Marcus Gohl, Gunter Knoll
Increased quantities of fuel in the lubricating oil of CI engines pose a major challenge to the automotive industry in terms of controlling the oil aging and the wear caused by dilution. Due to a lack of methods to calculate the oil-fuel-composite transport across the ring pack, predicting the fuel ratio in the oil sump has been an extremely challenging task for engine manufacturers. An accurate and computationally efficient simulation model is critical to predict the quantity of fuel diluted in the oil in the preliminary development stage of automotive engines. In this work, the complex composite transport across the piston ring pack was reduced to a simple transport model, which was successfully implemented into a multi-body simulation of the ring pack. The calculation domain was partitioned into two parts, the ring grooves and the piston lands. Inside the grooves the oil flow caused by the pumping and squeezing action of the piston rings was calculated using the Reynolds equation.
2015-08-30
WIP Standard
AS1701F
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.
2015-08-18
WIP Standard
J2265
This SAE Standard specifies: a test method for assessing the lubricating property of diesel fuels including those which may contain a lubricity enhancing additive, and the performance criteria necessary to ensure reliable operation of diesel fuel injection equipment with respect to fuel lubrication of such equipment. It applies to fuel used in diesel engines.
2015-08-11
Standard
J534_201508
This SAE Standard covers complete general and dimensional specifications for the various types of lubrication fittings and related threaded components intended for general application in the automotive and allied fields.
2015-06-16
Standard
AS29561B
SCOPE IS UNAVAILABLE.
2015-06-15
Technical Paper
2015-01-2259
Jan Zuleeg
Abstract Tribological contacts between plastic or polymer materials can exhibit stick-slip behaviour that generates noise. Tribological properties can be influenced by lubricants such as bonded coatings, greases, and fluids. In this paper, well known theories about polymer friction from the literature will be shown to be useful in the development of new lubricants. Theoretical results have been validated with a Ziegler Stick-Slip Test Rig. The test methods presented in this paper are used in the development of lubricants for automotive applications (in the interior of the car including invisible lubricants developed for Class “A” surfaces).
2015-06-15
Journal Article
2015-01-2173
Srikumar C Gopalakrishnan, Teik Lim
Abstract Modeling of elastohydrodynamic lubrication phenomena for the spiral bevel gears is performed in the present study. The damping and the friction coefficient generated from the lubricated contact area will have profound effects on the dynamics of spiral bevel gears. Thus the damping value generated from this friction model will be time varying. This makes the use of constant and empirical damping value in the dynamics of spiral bevel gears questionable. The input geometric and kinematic data required for the elastohydrodynamic lubrication (EHL) simulations are obtained using Tooth Contact Analysis. A full numerical elastohydrodynamic lubrication simulations are carried out using asymmetric integrated control volume (AICV) algorithm to compute the contact pressures. The fast Fourier transform is used to calculate the elastic deformations on the gear surfaces due to contact load.
2015-05-15
Book
This is the electronic format of the Journal.
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