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1. -2204-2458. Model comparison of prototype diesel rotating liner engine and baseline diesel engine.

Degree: MSin Engineering, Mechanical Engineering, 2016, University of Texas – Austin

Frictional losses in combustion engines have been the subject of many automotive engineers’ research. Understanding the fundamentals behind each frictional loss helps pave the way to finding a solution in reducing the overall frictional power losses and increasing efficiency. The reciprocating piston assembly has been proven to account for over 60% of all frictional power losses within a combustion engine. A major factor contributing to this is when the piston motion is temporarily static at top dead center (TDC) and bottom dead center (BDC). This causes the frictional forces between the cylinder wall and the piston rings to dramatically increase during these time periods. A solution to this would be to rotate the cylinder wall in order to keep the frictional forces in the hydrodynamic regime throughout the entire cycle of the combustion engine process. The prototype diesel rotating liner engine (RLE) is designed to prove this concept. The prototype diesel RLE is a Cummins 4BT engine that has been converted to a single cylinder engine and uses a crank pulley and gear system to rotate the cylinder wall. The purpose of this report is to provide information about the history of this research, a piston assembly friction model comparison between baseline engine and RLE, and a commercial application analysis. The results provide evidence of improved motoring operations and that a successfully operating prototype would be highly valued in the heavy-duty diesel industry. Advisors/Committee Members: Matthews, Ronald D. (advisor), Hall, Matthew J (committee member).

Subjects/Keywords: Diesel; Prototype engine; Diesel rotating liner engine; Baseline diesel engine; Piston assembly friction; Frictional loss; Cylinder wall

…a piston assembly friction model comparison between baseline engine and RLE, and a… …Heavy Duty Diesel Engine Manufacturers .................................56 4.A.2. Global… …72 ix List of Tables Table 1.1. Baseline SI Engine Specifications… …37 Figure 3.1. Pressure trace of a heavy-duty diesel engine at 1000 rpm with no load.41… …3.10. Estimated baseline engine total instantaneous piston assembly friction per cycle at… 

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APA (6th Edition):

-2204-2458. (2016). Model comparison of prototype diesel rotating liner engine and baseline diesel engine. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/47141

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Chicago Manual of Style (16th Edition):

-2204-2458. “Model comparison of prototype diesel rotating liner engine and baseline diesel engine.” 2016. Masters Thesis, University of Texas – Austin. Accessed March 07, 2021. http://hdl.handle.net/2152/47141.

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Author name may be incomplete

MLA Handbook (7th Edition):

-2204-2458. “Model comparison of prototype diesel rotating liner engine and baseline diesel engine.” 2016. Web. 07 Mar 2021.

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Author name may be incomplete

Vancouver:

-2204-2458. Model comparison of prototype diesel rotating liner engine and baseline diesel engine. [Internet] [Masters thesis]. University of Texas – Austin; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2152/47141.

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Council of Science Editors:

-2204-2458. Model comparison of prototype diesel rotating liner engine and baseline diesel engine. [Masters Thesis]. University of Texas – Austin; 2016. Available from: http://hdl.handle.net/2152/47141

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

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