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TRIBOLOGICAL EVALUATION OF INTAKE VALVE AND VALVE SEAT OF A DIESEL CYCLE ENGINE IN REAL OPERATING CONDITIONS

TRIBOLOGICAL EVALUATION OF INTAKE VALVE AND VALVE SEAT OF A DIESEL CYCLE ENGINE IN REAL OPERATING CONDITIONS

PENHALBEL, Luciano T. B.; PILLIS, Marina Fuser;

Artigo Completo:

Automotive industry demands products that work under extreme conditions. The development of components for internal combustion engines is an action to improve this product, so that it reaches the required life with acceptable levels of wear and respecting the legal operating limits, such as values of emission pollutants. In view of these requirements, it is necessary to study components considered critical, which are known to influence the performance of the engine. So, within this universe the tribology of the intake valve and valve seat insert is na important set, that must receive attention to its wear and consequently its influence on the engine degradation, in the emission of pollutants and performance related to the operational maintenance requirements and life of the product. The aim of this work is to evaluate the behavior of the tribological intake pair, valve and valve seat insert, submitted to dynamometer and vehicular tests (real operating conditions), regarding the level and type of wear occurred in the pair. Correlating the results obtained with legal and operational performance requirements of a Diesel cycle engine, as well as the characterization of the wear type occurred in the tribological pair, with the related literature.

Artigo Completo:

Automotive industry demands products that work under extreme conditions. The development of components for internal combustion engines is an action to improve this product, so that it reaches the required life with acceptable levels of wear and respecting the legal operating limits, such as values of emission pollutants. In view of these requirements, it is necessary to study components considered critical, which are known to influence the performance of the engine. So, within this universe the tribology of the intake valve and valve seat insert is na important set, that must receive attention to its wear and consequently its influence on the engine degradation, in the emission of pollutants and performance related to the operational maintenance requirements and life of the product. The aim of this work is to evaluate the behavior of the tribological intake pair, valve and valve seat insert, submitted to dynamometer and vehicular tests (real operating conditions), regarding the level and type of wear occurred in the pair. Correlating the results obtained with legal and operational performance requirements of a Diesel cycle engine, as well as the characterization of the wear type occurred in the tribological pair, with the related literature.

Palavras-chave: diesel cycle,

Palavras-chave:

DOI: 10.5151/engpro-simea2017-01

Referências bibliográficas
  • [1] BASSHUYSEN, Richard; SCHAFER, Fred. Internal combustion engine handbook: basics, components, systems, and perspectives. Local: SAE International, 2004.
  • [2] EPMA - EUROPEAN POWDER METALLURGY ASSOCIATION. Powder metallurgy in numbers. Disponível em http://www.epma.com/powder-metallurgy-economic-advantages. Access in: JAN/31/2017.
  • [3] LAKSHMINARAYANAN, P. A.; SCHAFER, Fred. NAYAK, Nagaraj S. Critical Component Wear in Heavy Duty Engines. Wiley, 2011.
  • [4] GEBAUER, K., Performance, tolerance and cost of TiAl passenger car valves. Intermetallics 14, pp. 355–360, 2006.
  • [5] RADI, Polyana Alves, SANTOS, Lúcia Vieira, BONETTI, Luiz Francisco, AIROLDI, Vladimir J. Trava. TRIBOLOGIA, CONCEITOS E APLICAÇÕES. Anais do 13º Encontro de Iniciação Científica e Pós-Graduação do ITA. XIII ENCITA, 2007.
  • [6] JOST, H. P. “Tribology-origin and future”. Wear 136, pp.1-17, 1990.
  • [7] STACHOWIAK, Gwidon W. e BATCHELOR, Andrew W. Engineering Tribology (4th Edition). Local: Butterworth-Heinemann, 2013.
  • [8] SEIREG, A. A. Friction and Lubrication in Mechanical Design. Marcel Dekker, 199
  • [9] WANG, Yushu. Introduction to Engine Valvetrains. SAE International, 2007.
  • [10] Standard CONAMA number 403, 2008.
  • [11] International Standard ISO 1585 Road vehicles – Engine test code – net power. Third edition, 1992.
Como citar:

PENHALBEL, Luciano T. B.; PILLIS, Marina Fuser; "TRIBOLOGICAL EVALUATION OF INTAKE VALVE AND VALVE SEAT OF A DIESEL CYCLE ENGINE IN REAL OPERATING CONDITIONS", p. 1-17 . In: . São Paulo: Blucher, 2017.
ISSN 2357-7592, DOI 10.5151/engpro-simea2017-01

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