Your Selections

Lubricating oils
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Materials for DPF and its Cleaning Methodologies

ARAI-Kamalkishore Vora, Kartik Gurnule
  • Technical Paper
  • 2019-28-2565
To be published on 2019-11-21 by SAE International in United States
Accumulation of ash in the Diesel Particulate Filter (DPF) with engine operating over the time is a major concern for all vehicle manufacturers, with BS VI and BS VII emission norms mandating the use of DPF. Ash deposition leads to increase in pressure drop across the filter and more frequent regeneration pattern, which can lead to sintering. It can hamper the capacity of soot loading, properties of DPF substrate material and can lower catalyst activity in case of Catalysed-DPF. Hence, removal of ash is important by defining the DPF cleaning methods. Primary source of ash is lubricant oil, taking part in the combustion. Lubricant additives like detergents and anti-wear agents are responsible for formation of metallic ash inside the DPF. Secondary source of metallic ash is fuel and engine wear out. The present paper elucidates the preparation of DPF samples including coating and canning of DPF substrates, with proper GBD. Pressure drop and weight with and without coating is estimated and validated through actual measurement of fresh as well as soot loaded samples. Soot loading…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Development of Dedicated Lubricant for Hydrogen Fueled Spark Ignition Engine

Indian Institute of Technology - Delhi-K A Subramanian
Indian Oil Corporation Limited-Sauhard Singh, Verinder Kumar Bathla, Reji Mathai
  • Technical Paper
  • 2019-28-2511
To be published on 2019-11-21 by SAE International in United States
Hydrogen has low ignition energy ensures easy ignition of the ultra-lean mixture of H2+air also. The flame speed of hydrogen is about five times higher than methane and gasoline which allows hydrogen fuelled IC engines to have relatively reduced cyclic variations than that of with methane and gasoline. High flame speed also helps to make the combustion closer to constant volume which enhances the thermal efficiency of hydrogen fuelled IC engine. High octane number of hydrogen makes it suitable for its application in Spark ignition (SI) engines. Since the hydrogen combustion in spark ignition engine generates water which can interfere with the lubricant performance, different lubricant is to be developed for this purpose. In this background, the present work is aimed at the development of dedicated lubricant for hydrogen fuelled SI engine. This paper presents the various parameters required for evaluating different lubricants for hydrogen fuelled genset. Existing CNG genset has been converted into hydrogen genset with modification in intake manifold assembly, engine hardware system, ECU modification with adequate modification in exhaust system. State of…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

A Comparative Tribological Performance of Lubricating Oils with Zinc Dialkyl Dithiophosphate and Zinc Oxide Nanoparticles as Additives

Archit Bimal Shah, Karan Kothari
Vellore Institute of Technology-Anil Payyappalli Mana
  • Technical Paper
  • 2019-28-0174
To be published on 2019-10-11 by SAE International in United States
The present work compares the tribological properties of ZnO (Zinc Oxide) nanoparticle based lubricant with ZDDP (zinc dialkyl dithiophosphate) based lubricant. The nanolubricant was prepared by mixing the nanoparticles in base oil followed by ultrasonification and ZDDP based lubricant was prepared by mixing ZDDP and stirring with base oil. Base oil used was mineral base oil. Both the lubricants were tested at three different temperatures, loads and roughness values. The test was carried out on AISI 52100 steel samples prepared by wire cutting and were grinded to three different levels of surface roughness. Friction and wear tests were performed using a reciprocating sliding tribo-tester at three different loads and temperatures. Taguchi orthogonal array was used to reduce the number of experiments. SEM, EDS and AFM analysis were carried out to study the surface wear phenomenon. The coefficient of friction was found to be low in the case of ZnO nanolubricant but wear was found to be high compared to ZDDP based lubricant.
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Emission and Tribological Studies on Nano CuO/Jatropha Methyl Ester/Synthetic Mineral Oil in a Two-Stroke Engine

Bannari Amman Institute of Technology-Anbalagan Ramakrishnan
Vellore Institute of Technology-Govindasamy Rajamurugan, Prabu Krishnasamy
  • Technical Paper
  • 2019-28-0095
To be published on 2019-10-11 by SAE International in United States
In lieu of the drastic growth of the vehicle population, there is a huge consumption of fossil fuels and mineral oils for mobility. This leads to depletion in fossil fuels and mineral oils which are the by-products of petroleum. These fossil fuels can’t sustain for a long period of time because of its toxicity. In order to reduce the usage of existing mineral oil for lubrication, a source of non-edible oil from Jatropha curcus is processed as jatropha methyl ester (JME). It is holding high viscosity, density and easy blend with base oil. In this current work, the wear resistance of the lubricating oil is enhanced by the addition of nano-copper oxide particle blend with the base oil. The emission performance and tribological behavior have been experimentally tested in 98.2CC two-stroke air cooled engine. The 20% of JME blend with CuO nano particle provides better emission performance and wear characteristics than the other combination of blends.
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.
new

Fuel-Lubricant Interactions on the Propensity for Stochastic Pre-Ignition

Driven Racing Oil-Lake Speed
National Renewable Energy Laboratory-Bradley Zigler, Jon Luecke
Published 2019-09-09 by SAE International in United States
This work explores the impact of the interaction of lubricant and fuel properties on the propensity for stochastic pre-ignition (SPI). Findings are based on statistically significant changes in SPI tendency and magnitude, as determined by measurements of cylinder pressure. Specifically, lubricant detergents, lubricant volatility, fuel volatility, fuel chemical composition, fuel-wall impingement, and engine load were varied to study the physical and chemical effects of fuel-lubricant interactions on SPI tendency. The work illustrates that at low loads, with fuels susceptible to SPI events, lubricant detergent package effects on SPI were non-significant. However, with changes to fuel distillation, fuel-wall impingement, and most importantly engine load, lubricant detergent effects could be observed even at reduced loads This suggests that there is a thermal effect associated with the higher load operation. It was hypothesized that the thermal effect was associated with lube oil nitrogenation. To test this theory, nitromethane (CH3NO2) was blended at 6.5% by volume CH3NO2 resulted in significant sensitivity to lubricant additive package effect on SPI, even at reduced loads where no lubricant sensitivity was observed without…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Etch Inspection of High Strength Steel Parts

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2649D
  • Current
Published 2019-07-15 by SAE International in United States
This specification establishes the requirements for etch inspection of steel parts to detect overheating (rehardening or overtempering) caused by abusive machining or grinding, or to detect localized discontinuous carburization.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Ethylene Propylene Rubber Phosphate Ester Resistant 65 - 75

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3253B
  • Current
Published 2019-06-17 by SAE International in United States
This specification covers an ethylene propylene elastomer in the form of molded sheet and shapes, color coded purple per ARP1527.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Rubber, Synthetic General Purpose, Fluid Resistant 55 - 65

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3220H
  • Current
Published 2019-06-11 by SAE International in United States
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Elastomer: Silicone (VMQ) Rubber Sheet, Glass Cloth Reinforced Heat and Weather Resistant 60 to 80 Type “A” Durometer Hardness

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3320J
  • Current
Published 2019-05-10 by SAE International in United States
This specification covers a silicone (VMQ) elastomer, reinforced with glass cloth, in the form of sheet.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Coupling Assemblies, Quick Disconnect, Automatic Shutoff

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7413A
  • Current
Published 2019-04-23 by SAE International in United States
This specification establishes requirements for automatic shutoff, quick-disconnect coupling assemblies for fuel and oil lines.
This content contains downloadable datasets
Annotation ability available