Patents by Inventor Matts Friis

Matts Friis 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).

  • Injection pump for a piston engine
    Patent number: 7603987
    Abstract: A fuel injection pump for a piston engine, the pump comprising a cylinder element having a pressure plenum provided with an outlet chamber for removing pressurized fuel from the pressure plenum, a piston arranged to reciprocate inside the pressure plenum, an inlet chamber arranged outside the pressure plenum and at least one inlet channel arranged between the pressure plenum and the inlet chamber. At least one fill channel provided with a non-return valve is arranged between the pressure plenum and the inlet chamber, the valve allowing fuel flow from the inlet chamber to the pressure plenum but preventing flow from the pressure plenum to the inlet chamber.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: October 20, 2009
    Assignee: Wartsila Finland Oy
    Inventors: Matti Koivunen, Matts Friis, Thomas Hägglund
  • INJECTION PUMP FOR A PISTON ENGINE
    Publication number: 20090178649
    Abstract: A fuel injection pump for a piston engine, the pump comprising a cylinder element having a pressure plenum provided with an outlet chamber for removing pressurized fuel from the pressure plenum, a piston arranged to reciprocate inside the pressure plenum, an inlet chamber arranged outside the pressure plenum and at least one inlet channel arranged between the pressure plenum and the inlet chamber. At least one fill channel provided with a non-return valve is arranged between the pressure plenum and the inlet chamber, the valve allowing fuel flow from the inlet chamber to the pressure plenum but preventing flow from the pressure plenum to the inlet chamber.
    Type: Application
    Filed: November 1, 2006
    Publication date: July 16, 2009
    Applicant: Wärtsilä Finland OY
    Inventors: Matti Koivunen, Matts Friis, Thomas Hägglund