Study on Diesel Soot (Part 1) Effect of Diesel Soot on Valve Train Wear in Passenger Car Diesel Engines.

Kagaya, Mineo

doi:10.1627/jpi1958.40.482

Cited by 7 publications

(2 citation statements)

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“…Many studies have been conducted to understand the characteristics of soot emitted under a diesel engine environment and its impact on the wear of engine components equipped with EGR. − It has been established that crankcase soot degrades the lubricant oil properties physically and chemically, thereby inducing wear on engine parts. However, a study on the time-scale interaction of soot with lubricant chemistry and subsequent changes in the structure and chemistry of soot would provide better insight into the understanding on the role of soot in an engine.…”

Section: Introductionmentioning

confidence: 99%

Influence of Engine Age on Morphology and Chemistry of Diesel Soot Extracted from Crankcase Oil

et al. 2016

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In this study, the role of engine age on the structure and chemistry of crankcase soot was studied using X-ray diffraction, high-resolution transmission electron microscopy, energy-dispersive spectroscopy, and Raman spectroscopy. Results indicate that the basic structure of the carbonaceous species remains the same in all cases and is composed of turbostratic carbon. However, there are some very subtle changes in the structure of the soot as the age of the engine increases. Older engines have a greater proportion of non-crystalline amorphous carbonaceous constituents in the soot relative to newer engines. In addition, the wear-induced debris increase with the age of the engine, with a larger proportion of phosphates of Ca and Zn as well as sulfates of Ca in the soot of older engines. The presence of these wear debris particles incorporated in the soot extracted from the crankcase indicates that they arise from three-body abrasive wear between the soot and the tribofilms formed within the engine.

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Section: Introductionmentioning

confidence: 99%

Influence of Engine Age on Morphology and Chemistry of Diesel Soot Extracted from Crankcase Oil

et al. 2016

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“…Physical and chemical degradation of lubrication oil and subsequent wear of engine component due to presence of soot is well documented. 1–27 A great deal of attention has been paid to this problem since 2007 when the environmental protection agency (EPA) implemented emission norms API CJ 4 in an effort to reduce emission of pollutants from diesel engine along with the mandates to extend the life of diesel particulate filters and catalytic converters by lubrication decomposition products in tail pipe. 28,29…”

Section: Introductionmentioning

confidence: 99%

Role of thermal, mechanical and oxidising treatment on structure and chemistry of carbon black and its impact on wear and friction Part I: Extreme pressure condition

Patel

Aswath

2014

Tribology - Materials, Surfaces & Interfaces

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Carbon black was blended in different oil formulations that included base oil with ZDDP and dispersant as well as fully formulated oils. The blended formulations were then subjected to various thermal, oxidative and mechanical treatments to force interaction between the carbon black and different constituents of the oil and thermo-oxidative decomposition products of oil. Wear studies conducted on the treated compositions were compared with formulations that were blended with extracted diesel soot. XANES analysis of extracted diesel soot and treated carbon black were compared to elucidate similarities between the two in terms of their chemical constituents. Tribological and XANES results indicate that it is possible to simulate wear conditions similar to those seen with diesel soot when appropriate thermo-oxidative conditions were used.

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Morphology, structure and chemistry of extracted diesel soot: Part II: X-ray absorption near edge structure (XANES) spectroscopy and high resolution transmission electron microscopy

Patel

Aswath

2012

Tribology International

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Study on Diesel Soot (Part 1) Effect of Diesel Soot on Valve Train Wear in Passenger Car Diesel Engines.

Cited by 7 publications

References 0 publications

Influence of Engine Age on Morphology and Chemistry of Diesel Soot Extracted from Crankcase Oil

Influence of Engine Age on Morphology and Chemistry of Diesel Soot Extracted from Crankcase Oil

Role of thermal, mechanical and oxidising treatment on structure and chemistry of carbon black and its impact on wear and friction Part I: Extreme pressure condition

Morphology, structure and chemistry of extracted diesel soot: Part II: X-ray absorption near edge structure (XANES) spectroscopy and high resolution transmission electron microscopy

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