Patents by Inventor Jan Gyllenstedt

Jan Gyllenstedt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Crankcase ventilation in an internal combustion engine
    Patent number: 6213107
    Abstract: Internal combustion engine with crankcase ventilation, having an outlet (13) placed to one side of an existing rotating wheel or gear (3) in a drive train (3, 4, 5), so that the wheel or gear, through its centrifugal effect, separates oil drops from the oil mist in the blow-by gas adjacent the outlet.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: April 10, 2001
    Assignee: Volvo Lastvagnar AB
    Inventor: Jan Gyllenstedt
  • Internal combustion engine piston
    Patent number: 6189500
    Abstract: Piston for an internal combustion engine has a top ring land with a diameter differential of at least 0.3% of the major diameter to eliminate the risk of cylinder polishing.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: February 20, 2001
    Assignee: AB Volvo
    Inventor: Jan Gyllenstedt