Patents Assigned to Koncentra Marine & Power AB
  • Thermal spraying of a piston ring
    Patent number: 7332199
    Abstract: The invention relates to a piston ring coated with a coating material by a thermal spray process, exposed to heat treatment of the coating material at an elevated temperature and for a time effective to at least partially diffuse the coating material into the piston ring surface or underlying layer of coating material, and an additionally applied coating material layer subject to successive heat treatments of each coating material layer in order to lay down on the piston ring surface a plurality of layers of the same coating material.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: February 19, 2008
    Assignee: Koncentra Marine & Power AB
    Inventor: Mehdi Aram
  • Piston ring having wear resistant composition
    Patent number: 7144017
    Abstract: A piston ring including at least one intermetallic alloy is provided. A piston ring having a wear-resistant composite composition and a piston ring coating comprising a wear-resistant composition are also provided.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: December 5, 2006
    Assignee: Koncentra Marine & Power AB
    Inventors: Mehdi Aram, Per Samuelsson, Karin Gong, Changhai Li
  • Piston ring having wear resistant composition
    Patent number: 7052018
    Abstract: The invention discloses a piston ring comprising a piston ring substrate. The piston ring substrate comprises at least 50 volume %, of at least one intermetallic alloy, based on the total volume of the wear-resistant composition. The invention further relates to a piston ring comprising a wear-resistant composite composition and a piston ring coating comprising a wear-resistant composition, the wear-resistant composite composition comprising a ceramic compound.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: May 30, 2006
    Assignee: Koncentra Marine & Power AB
    Inventors: Per Samuelsson, Karin Gong, Changhai Li, Mehdi Aram