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The Lubricity of Winter Diesel Fuels - Part 2: Pump Rig Test Results
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Abstract
In the last few years there have been sporadic complaints regarding field failures of diesel fuel injection equipment. Upon investigation these complaints have been associated with:
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i)
rotary or distributor type pumps as used in light and medium duty diesel engines, and
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ii)
the use of “winter” grade diesel fuels or diesel fuels that have been altered to meet the requirements of environmental regulations.
Rotary and distributor type diesel fuel pumps rely totally on the fuel for lubrication. The fuel's ability to prevent or minimize wear in these types of pumps is important. This ability has recently been referred to as the fuel's “lubricity”.
Shell Canada has been investigating this issue for the past few years. Recently we have investigated the “lubricity” performance of various diesel fuels using two diesel fuel pump endurance rigs. One rig consists of two rotary type pumps, the other two distributor type pumps. The correlation of the results from these particular rigs to the actual performance of pumps in vehicle field tests has been previously established.
Test results from the distributor type pump rig are presented, discussed and related to the test fuel properties, including lubricity as measured in lab bench tests. Test results from the rotary type pump rig will be presented in a later paper.
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Authors
Topic
Citation
Mitchell, K., "The Lubricity of Winter Diesel Fuels - Part 2: Pump Rig Test Results," SAE Technical Paper 961180, 1996, https://doi.org/10.4271/961180.Also In
References
- Appledorn J.K. Dukek W. G. “Lubricity of Jet Fuel” SAE Paper 660712 1966
- Mitchell K. “The Lubricity of Winter Diesel Fuels” SAE Paper 952370 1995
- Alberta Research Council “Automotive Diesel Fuel Characteristics Canadian Winter Survey 1994 1994
- Lacey P. et al “Effect of Low-Lubricity Fuels on Diesel Injection Pumps - Part I: Field Performance” SAE Paper 920823 1992
- Tucker R.F. et al “The Lubricity of Deeply Hydrogenated Diesel Fuels - The Swedish Experience” SAE Paper 942016 1994
- Bosch Robert CGSB Mid Distillate Committee on December 14, 1995 in Toronto Ontario, Canada
- “Diesel Engines - Diesel Fuel- Lubricity” ISO/CD 12156 3 January 1996
- Lacey P. “Development of a Lubricity Test Based on the Transition from Boundary Lubrication to Severe Adhesive Wear in Fuels” Journal of the Society of Tribologists and Lubrication Engineers 50 10 749 757 October 1994
- Voitik R. “BOTS to BOTD” ISO/TC22/SC7/WG6 Document N189, from the minutes of the ISO/TC22/SC7/WG6 meeting in Baltimore Md., USA October 17 1994
- Nikanjam M. Burk E. “Diesel Fuel Lubricity Additive Study” SAE Paper 942014 1994
- Engine Manufacturers Association Fuel Quality Position FPQ-1 1995
- Nikanjam M. et al “ISO Diesel Lubricity Round Robin Program” SAE Paper 952372 1995
- Voitik R. personal communication 1995