Patents by Inventor Jonas Åkerman

Jonas Åkerman 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).

  • ACTUATOR ASSEMBLY FOR CONTROLLING A FUEL INJECTION SYSTEM OF A LARGE COMBUSTION ENGINE
    Publication number: 20090174255
    Abstract: The invention relates to an actuator assembly for controlling fuel injection of a large combustion engine, especially a diesel engine, including an electric motor (6) acting on a control shaft (8) arranged to control the fuel injection and actuator control means (2,3) provided with an electric power supply (4,5) for controlling the electric motor (6). According to the invention the actuator assembly is provided with backup power in the form of capacitor power (12) arranged to provide power for the actuator control means (2,3) in case of loss of power or power failure of the electric power supply (4,5) so as to enable the actuator control means (2,3) to control the electric motor (6) to drive the control shaft (8) to a predefined safe position.
    Type: Application
    Filed: June 4, 2007
    Publication date: July 9, 2009
    Applicant: Wärtsilä Finland OY
    Inventors: Tommy Dahlberg, Jonas Åkerman, Johan Pensar, Silvio Casini