Patents by Inventor Giulio TIRELLI

Giulio TIRELLI 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).

  • Method of starting an internal combustion engine of a hybrid propulsion system in a marine vessel and a hybrid propulsion system in a marine vessel
    Patent number: 11358696
    Abstract: A method of operating a marine vessel hybrid propulsion system having a propulsion shaft and a propeller, an internal combustion piston engine in force transmission connection with the propulsion shaft, and an electric motor-generator in force transmission connection with the propulsion shaft and/or with the piston engine. The internal combustion piston engine can be started by applying electric power from an on-board power source to the electric motor-generator and rotating the internal combustion piston engine by the electric motor-generator and rotational speed of the internal combustion piston engine is accelerated to a predetermined limit rotational speed without attempting to start the internal combustion piston engine, and only after the rotational speed of the internal combustion piston engine reaches the predetermined limit rotational speed, the internal combustion piston engine is started.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: June 14, 2022
    Assignee: WÄRTSILÄ FINLAND OY
    Inventor: Giulio Tirelli
  • METHOD OF STARTING AN INTERNAL COMBUSTION ENGINE OF A HYBRID PROPULSION SYSTEM IN A MARINE VESSEL AND A HYBRID PROPULSION SYSTEM IN A MARINE VESSEL
    Publication number: 20200140053
    Abstract: A method of operating a marine vessel hybrid propulsion system having a propulsion shaft and a propeller, an internal combustion piston engine in force transmission connection with the propulsion shaft, and an electric motor-generator in force transmission connection with the propulsion shaft and/or with the piston engine. The internal combustion piston engine can be started by applying electric power from an on-board power source to the electric motor-generator and rotating the internal combustion piston engine by the electric motor-generator and rotational speed of the internal combustion piston engine is accelerated to a predetermined limit rotational speed without attempting to start the internal combustion piston engine, and only after the rotational speed of the internal combustion piston engine reaches the predetermined limit rotational speed, the internal combustion piston engine is started.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Applicant: WÄRTSILÄ FINLAND OY
    Inventor: Giulio TIRELLI