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ARCI has developed technology that can improve the fuel efficiency of internal combustion engines

ARCI has developed technology that can improve the fuel efficiency of internal combustion engines

The International Advanced Centre has developed an ultrafast laser surface texturing technology for Powder Metallurgy & New Materials (ARCI) which can improve the fuel efficiency of internal combustion engines.

Key Points:

  • The ARCI is an autonomous Research and Development Centre operating under the Department of Science and Technology (DST) which lies under the Ministry of Science and Technology (DST)
  • Laser surface micro-texturing provides accurate control of the size, shape and density of micro-surface texture features and has been recognized as a method of controlling friction and wear.
  • Ultrafast lasers can create micro or nano features without the presence of vacuum conditions.
  • The technology operates by beaming a pulsating laser which creates grooves on the surface of materials in a very guided way.
  • This helps in creating textures that can trap wear debris when operating under dry sliding conditions and providing effects like enhancing oil supply which lowers friction coefficients and therefore reducing wear rate.
  • The textures were created on automotive internal combustion engine components, like cylinder liners and piston rings.
  • When the textures were tested in an engine test rig under different temperatures of lubrication oil and coolants and different speeds, it was noted that there was a 16 per cent reduction in the oil consumption when the texture was used on the piston rings.

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