Your Selections

Lubricants
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

 
new

Lubricant Application, Solid Film, Heat Cured, Potable Water, Hydraulic, and Other Fluid Systems

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS6450B
  • Current
Published 2019-05-20 by SAE International in United States

This SAE Aerospace Standard (AS) establishes the surface pretreatment, temperature, and baking time required to cure AS6449 Type I and Type II solid film lubricant (SFL) when it is applied over the surfaces of manufactured parts of various metals. Application method may be dipping or spraying.

 
new

Fitting, Lubrication, Hydraulic, Surface Check, Straight Threads, Steel, Type II

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS15002D
  • Current
Published 2019-05-20 by SAE International in United States

Scope is unavailable.

 

Development of Engine Test Method to Discriminate Engine Oils and Additives in Terms of Motoring Torque

Indian Oil Corporation-Deepak Saxena
Indian Oil Corporation Ltd.-A.S. Ramadhas, Punit Kumar Singh, Sarita Seth, Reji Mathai, Shyam Singh, S.S.V. Ramakumar
Published 2019-04-02 by SAE International in United States
Improvement in fuel economy and reduction in emissions are the two major driving forces in the advancement of automotive engine technologies, fuel quality, lubricants, and aftertreatment devices. Engine design, operating conditions such as speed and load, and engine oil behavior have a significant influence on engine friction and then the vehicle fuel economy. There is no standard short duration engine test available to evaluate engine oil’s friction. This study developed a test protocol to discriminate friction reduction efficacy of engine oils/additives to support in the development of engine oils. The engine test facility was modified to conduct the motoring test over the speed range of 1000 - 4500 rpm and at 50 - 100 °C coolant and oil temperatures. Different viscosity grades and additive chemistry i.e. combination of friction modifiers & viscosity modifiers was evaluated over the motored torque test. Repeatability of test results was also ensured by conducting the test many times under the same temperature/speed conditions. High viscosity index engine oils have shown better performance compared to low viscosity index oils at all…
Datasets icon
Annotation icon
 

Analysis of the Impact of Production Lubricant Composition and Fuel Dilution on Stochastic Pre-Ignition in Turbocharged, Direct-Injection Gasoline Engines

FEV North America Inc.-Patrick Haenel, Rob de Bruijn, Dean Tomazic, Henning Kleeberg
Published 2019-04-02 by SAE International in United States
The occurrence of abnormal combustion events leading to high peak pressures and severe knock can be considered to be one of the main challenges for modern turbocharged, direct-injected gasoline engines. These abnormal combustion events have been referred to as Stochastic Pre-Ignition (SPI) or Low-Speed Pre-Ignition (LSPI). The events are characterized by an undesired, early start of combustion of the cylinder charge which occurs before or in parallel to the intended flame kernel development from the spark plug. Early SPI events can subsequently lead to violent auto-ignitions that are often referred to as Mega- or Super-Knock. These heavy knock events lead to strong pressure oscillations which can destroy production engines within a few occurrences. SPI occurs mainly at low engine speed and high engine load, thus limiting the engine operating area that is in particular important to achieve good drivability in downsized engines. Recent experimental SPI studies have linked this phenomenon strongly to engine oils.While numerous studies have been published using target blended oils, the presented study focuses on the impact of lubricants with production level…
Datasets icon
Annotation icon
 

Synthesizing Renewable Oils for Use in Lubricants

  • Magazine Article
  • TBMG-34138
Published 2019-04-01 by Tech Briefs Media Group in United States

Industrial machinery, agricultural equipment, transportation vessels, and home applications depend on lubricants; however, they leave a heavy environmental footprint. Common lubricants, oils, greases, and emollients typically consist of mineral, or petroleum, base oils — often up to 90 percent by weight. These mineral base oils are highly volatile and tend to thicken quickly, which means that lubricants need to be replaced often, generating waste.

 

SAE International Journal of Fuels and Lubricants

  • Journal
  • V128-4EJ
Published 2019-02-28 by SAE International in United States
This is the electronic format of the journal
 

Automotive Gear Lubricant Viscosity Classification

Fuels and Lubricants TC 3 Driveline and Chassis Lubrication
  • Ground Vehicle Standard
  • J306_201902
  • Current
Published 2019-02-06 by SAE International in United States
This SAE Standard defines the limits for a classification of automotive gear lubricants in rheological terms only. Other lubricant characteristics are not considered.
Datasets icon
Annotation icon
 

Fuel & Lubricant Effects on Stochastic Preignition

Aramco Research Center-Vincent S. Costanzo, Xin Yu
FEV Consulting GmbH-Patrick Haenel
Published 2019-01-15 by SAE International in United States
In this multi-phase study, fuel and lubricant effects on stochastic preignition (SPI) were examined. First, the behavior of fuels for which SPI data had previously been collected were characterized in terms of their combustion and emissions behavior, and correlations between these characteristics and their SPI behavior were examined. Second, new SPI data was collected for a matrix of fuels that was constructed to test and confirm hypotheses that resulted from interpretation of the earlier data in the study and from data in open literature. Specifically, the extent to which the presence of heavy components in the fuel affected SPI propensity, and the extent to which flame initiation propensity affected SPI propensity, were examined. Finally, the interaction of fuels with lubricants expected to exhibit a range of SPI propensities was examined. Although this final dataset did not yield conclusive results, it suggests that additional factors such as engine condition can have a very significant effect on SPI propensity.The main findings of the study are that lower volatility fuel components appear to affect the propensity of the…
Datasets icon
Annotation icon
 

Automotive Gear Lubricants for Commercial and Military Use

Fuels and Lubricants TC 3 Driveline and Chassis Lubrication
  • Ground Vehicle Standard
  • J2360_201901
  • Current
Published 2019-01-07 by SAE International in United States
The gear lubricants covered by this standard exceed American Petroleum Institute (API) Service Classification API GL-5 and are intended for hypoid-type, automotive gear units, operating under conditions of high-speed/shock load and low-speed/high-torque. These lubricants may be appropriate for other gear applications where the position of the shafts relative to each other and the type of gear flank contact involve a large percentage of sliding contact. Such applications typically require extreme pressure (EP) additives to prevent the adhesion and subsequent tearing away of material from the loaded gear flanks. These lubricants are not appropriate for the lubrication of worm gears. Appendix A is a mandatory part of this standard. The information contained in Appendix A is intended for the demonstration of compliance with the requirements of this standard and for listing on the Qualified Products List (QPL) administered by the Lubricant Review Institute (LRI). Appendix A contains a summary of key qualification requirements. A complete listing of qualification requirements and procedures can be found in the Program Document (PD4000) - Gear Lubricant Review Program - available…
Datasets icon
Annotation icon
 

Improvement in DCT Shaft Lubrication through CFD Method

SAE International Journal of Fuels and Lubricants

Geely Powertrain Research Institute, China-Ting Su
Hebei University of Technology, China-Hai Liu, Libin Zang
  • Journal Article
  • 04-11-03-0011
Published 2018-10-25 by SAE International in United States
Dual-clutch transmission (DCT) output shaft 1 (OS1) mount position is higher than the transmission lubricant level. Needle bearings and idler gears on OS1-insufficient lubrication issues and the transmission lubrication system were investigated. In the design model, the transmission housing lubrication channel and oil guide component design were studied. For numerical analysis, the STAR-CCM+ software was used to simulate transmission internal complex oil-gas multiphase transient flow morphology that monitored the four bore oil churning volumes of OS1. Finally, lubrication test results affirm simulation predictions that idler gears, needle bearings, and synchronizer rings on OS1 obtain sufficient lubrication provided that a reliable method to inspect lubrication design functions is available.
Annotation icon