International Journal of Automotive Technology

, Volume 18, Issue 6, pp 1047–1059 | Cite as

Lubricating performance of carbon nanotubes in internal combustion engines – engine test results for CNT enriched oil

  • Jarosław Kałużny
  • Agnieszka Merkisz-Guranowska
  • Michael Giersig
  • Krzysztof Kempa


The main purpose of this research is to reduce friction losses by adding carbon nanotubes to engine oil. Extremely favorable tribological properties of carbon nanotubes have been extensively studied on the microscopic scale and using tribometers, have not yet been verified in the engine. Enriching oil with nanotubes can lead to significant, exceeding 7 %, reduction in the motoring torque of the engine at low crankshaft rotational speed. The phenomena associated with the dispersion of carbon nanotubes in the engine are stated and discussed. It has been shown that the oil shear during normal operation of the engine can effectively improve the dispersion of nanotubes. At the same time the oil filtration system removes agglomerates of nanotubes very quickly.

Key words

Combustion engines Carbon nanotubes Engine oil Friction 


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Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Jarosław Kałużny
    • 1
  • Agnieszka Merkisz-Guranowska
    • 1
  • Michael Giersig
    • 2
  • Krzysztof Kempa
    • 3
  1. 1.Faculty of Machines and TransportPoznan University of TechnologyPoznanPoland
  2. 2.Faculty of ArchitecturePoznan University of TechnologyPoznanPoland
  3. 3.Department of PhysicsBoston CollegeChestnut HillUSA

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