Engine lubricants diesel engines

Martin, B. and P.-H. Bigeard (1992), Hydrotreatment of diesel fuels -its impact on light- duty diesel engine pollutants . SAE paper No. 92-2268, International fuels and lubricants meeting, San Francisco, CA. 

Triaryl phosphates of ISO 32 viscosity show promise for the main beating lubricants of steam and gas turbiaes (39,40). An interesting possibiHty iavolves unique deHvery of phosphate ester vapor to lubricate the piston ring 2one of low heat rejection (adiabatic) diesel engines (41). 

Oil additives account on average for 7—8% of lubricant production volume (automotive 13%, iadustrial 3%) (67). Additive production volumes have largely mirrored overall lubricant production. New standards for automotive and diesel engine oils are requiring higher additive levels and more expensive chemistry. 

Groeneweg, M. Hakim, N. Barber, G. C. and Klaus, E. (1991). Vapor Delivered Lubrication of Diesel Engines— Cylinder Kit Rig Simulation. Lubrication Engineering, 47(12) 10.1S. 

Figure 12-5F. Lubricated and nonlubricated balanced opposed process reciprocating compressors, designed to API 618 code. Fixed- and variable-speed drives using gas or diesel engines, steam or gas turbines, or electric motor. Note power drive to connect to right side of cross-head box in center. (Used by permission Bui. PROM 635/115/95-11. Nuovo Pignone S. P. A., Florence, Italy New York Los Angeles and Houston, Texas. All rights reserved.)...

One of the disadvantages of the diesel engine is its high lubricating oil consumption which, typically for a 3.6MW engine, will be 0.0351/kWh. Added to this quantity must be the oil changes at routine service intervals. 

There has been a recent revival in interest in the use of ethanol-diesel fuel blends (E-diesel) in heavy-duty vehicles as a means to reduce petroleum dependency, increase renewable fuels use, and reduce vehicle emissions [27]. E-diesel blends containing 10-15% ethanol could be prepared via the use of additives. However, several fuel properties that are essential to the proper operation of a diesel engine are affected by the addition of ethanol to diesel fuel - in particular, blend stability, viscosity and lubricity, energy content and cetane number (increasing concentrations of ethanol in diesel lower the cetane number proportionately) [28]. Materials compatibility and corrosiveness are also important factors that need to be considered. 

Kim B. Peyton began his career in the petroleum industry in 1978. During the past 23 years, he has worked in the development of synthetic fuels from coal and shale oil, the manufacture and quality assurance of automotive and diesel engine oils, the development of industrial lubricants, the evaluation and development of fuel and lubricant additives, and in providing a diverse range of technical support services to customers. 

Bardasz, E., Mackney, D., Britton, N., Kleinschek, G., Olofsson, K., Murray, I., and Walker, A. P. Investigations of the interactions between lubricant-derived species and aftertreatment systems on a state-of-the-art heavy duty diesel engine. SAE Technical Paper No. 2003-01-1963 (2003). 

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