Results 151 to 160 of about 1,553 (181)
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HFRR lubricity response of an additized aviation kerosene for use in CI engines
Tribology International, 2002Abstract To reduce their fuel related logistic burden, NATO Armed Forces are advancing the use of a single fuel for both aircraft and ground equipment. To this end, F-34 is replacing distillate diesel fuel in many applications. However, tests conducted with kerosene on High Frequency Reciprocating Rig, showed that it causes unacceptable wear due to ...
G. Anastopoulos +4 more
semanticscholar +2 more sources
SAE International Journal of Fuels and Lubricants, 2014
<div class="section abstract"><div class="htmlview paragraph">Diesel fuel requires sufficient lubricity to prevent excessive wear in fuel injection equipment. The processes for removing sulfur from diesel fuel also eliminate compounds that are responsible for its lubricating properties.
K. Lehto +3 more
semanticscholar +2 more sources
<div class="section abstract"><div class="htmlview paragraph">Diesel fuel requires sufficient lubricity to prevent excessive wear in fuel injection equipment. The processes for removing sulfur from diesel fuel also eliminate compounds that are responsible for its lubricating properties.
K. Lehto +3 more
semanticscholar +2 more sources
Characterization of wear in images of samples from the HFRR test
Proceedings of the 26th International Congress of Mechanical Engineering, 2021Maxwell C. Jácome +1 more
semanticscholar +2 more sources
A Comparison of Modified Elevated Temperature HFRR Test Data With Scuffing BOCLE Results
SAE Technical Paper Series, 1996<div class="htmlview paragraph">Evolving diesel engine design trends are expected to include fuel systems operating at significantly higher pressures and temperatures than in the past. Accordingly, meaningful laboratory tests are needed to help guide this development. Two candidate test methods were evaluated in this exploratory study.
N. Blizard, P. Bennett
semanticscholar +2 more sources
SAE Technical Paper Series, 2015
<div class="section abstract"><div class="htmlview paragraph">The sulphur level of diesel fuels began to be limited in Europe at the end the 20th century. Quite soon after that it was noticed that the processes for removing sulphur also removed other polar compounds and the natural lubricity of the diesel fuel was lost.
Markku Kuronen, Ulla Kiiski, K. Lehto
semanticscholar +2 more sources
<div class="section abstract"><div class="htmlview paragraph">The sulphur level of diesel fuels began to be limited in Europe at the end the 20th century. Quite soon after that it was noticed that the processes for removing sulphur also removed other polar compounds and the natural lubricity of the diesel fuel was lost.
Markku Kuronen, Ulla Kiiski, K. Lehto
semanticscholar +2 more sources
Tribochemistry of mono molecular additive films on metal surfaces, investigated by XPS and HFRR
, 2005In order to see how oxygen and nitrogen containing substances influence the wear relating behaviour of diesel fuels various hydroxychinolines were investigated by means of a high frequency reciprocating rig (HFRR) tribome-ter. Attention was especially given to the connection between the position of the hydroxyl group at the molecule and the resulting ...
R. Kolm +6 more
semanticscholar +2 more sources
, 2020
The lubricant characteristics of different paraffinic diesel fuel formulations, including biodiesel and lubricity improvers, were tested and compared with the characteristics of conventional middle...
Jesús Delgado +3 more
semanticscholar +1 more source
The lubricant characteristics of different paraffinic diesel fuel formulations, including biodiesel and lubricity improvers, were tested and compared with the characteristics of conventional middle...
Jesús Delgado +3 more
semanticscholar +1 more source
International Journal of Engine Research
Recently, ethanol has become acceptable for blending with diesel, in the so called diesohol, and is known to reduce particulate matter exhausted from diesel engines significantly. However, its poor lubricity is a concern for long-term application.
S. Chuepeng +5 more
semanticscholar +1 more source
Recently, ethanol has become acceptable for blending with diesel, in the so called diesohol, and is known to reduce particulate matter exhausted from diesel engines significantly. However, its poor lubricity is a concern for long-term application.
S. Chuepeng +5 more
semanticscholar +1 more source