THE IMPORTANCE OF PREDICTIVE MAINTENANCE THROUGH ANALYSIS OF 15W40 LUBRICANT OIL SAMPLES IN DIESEL ENGINES

Author(s):  
Izac Sousa Vieira ◽  
JOSE WELITON NOGUEIRA JUNIOR ◽  
YURI JOSE LUZ MOURA ◽  
Wênio Fhará Alencar Borges
2017 ◽  
Vol 33 (8) ◽  
pp. 2765-2779 ◽  
Author(s):  
António Simões ◽  
José Manuel Viegas ◽  
José Torres Farinha ◽  
Inácio Fonseca

2008 ◽  
Vol 3 (1) ◽  
pp. 14
Author(s):  
Mohammed Mouath AL Khayat ◽  
Mohammed Rashid AL Shorbajy ◽  
Basim AL Najjar

Vibration analysis is used as a predictive maintenance tool in a wide variety of industrial areas, especially for rotating and reciprocating machines. In this paper fault diagnosis of the reciprocating air compressor in factory for furniture and the radiator of the diesel engines for generating electricity is presented. The reciprocating air compressor had failures in the outlet pipe of stage one. The radiator of diesel engines was subjected to leakage caused by vibrating forces. In order to detect the faults, some vibration measurements were taken and vibration analysis was accomplished. Finally, according to measurements and vibration analysis results some remedial actions were recommended.


1988 ◽  
Vol 21 (5) ◽  
pp. 269-274 ◽  
Author(s):  
G.K. Sharma ◽  
O.P. Chawla
Keyword(s):  

Author(s):  
J. R. Gonza´lez ◽  
J. Velayos ◽  
M. Comamala

In this article we present a fluid-based predictive maintenance system based on an expert system which uses fuzzy logic. The programme uses information from the circulating fluids of the machine to provide an evaluation of the maintenance status of the engine. Specifically, the programme is aimed at diesel engines in a half rate cogeneration, and so we will compare our results with other commercial maintenance systems, such as FAMM (Texaco) and ADOC (Repsol), which provide corresponding responses.


Author(s):  
Brian J. Callahan ◽  
Michael H. Wahl ◽  
Kent Froelund

Opposed-piston two-stroke diesel engines have an inherent thermodynamic efficiency advantage and, by virtue of having double the firing frequency, allow for increased power density and lower NOX emissions while improving fuel efficiency, when compared to a four-stroke engine of equivalent power. However, opposed-piston two-stroke engines are piston-ported and, as such, are often erroneously dismissed for use in emissions compliant, on-highway vehicle applications over oil control concerns. The results presented in this paper show that oil control at levels acceptable for combustion and emissions control purposes is attainable with crankcase-lubricated, piston-ported opposed-piston diesel engines. Lubricant oil consumption was measured for the 13 test modes of the European Stationary Cycle using a real-time Da Vinci lubricant oil consumption measurement system. Repeatability of the measurement process was demonstrated. Oil consumption was measured during engine warm-up and shown to be reduced 30% compared to the fully warm condition. Furthermore, an increase of the oil control ring tension resulted in 16% lower oil consumption compared to the baseline. An optimization involving measurements with different cylinder kits resulted in a weighted average fuel-specific lubricant oil consumption of 0.18%. These data represent the first measured lubricant oil consumption maps for any contemporary two-stroke diesel engine ever reported.


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