Patents by Inventor Matteo Santamarina

Matteo Santamarina 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).

  • Control method for variable turbine nozzle of turbocharger during engine braking
    Patent number: 11608775
    Abstract: A control method for use in an engine braking maneuver for an internal combustion engine (ICE) system including a turbocharger having a variable-nozzle turbine (VNT), the ICE system further including an exhaust flap disposed in an exhaust line downstream of the variable-nozzle turbine. Prior to closing the exhaust flap, the VNT vanes are first parked in a fully open position. After the exhaust flap closes, the vanes are pivoted to a fully closed position and are continuously urged against a hard stop as long as the exhaust flap is closed. Termination of engine braking entails pivoting the vanes back to the fully open position, whereupon the exhaust flap is opened.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: March 21, 2023
    Assignee: Garrett Transportation I Inc.
    Inventors: Julien Mailfert, Francois Kuehn, Matteo Santamarina, Aurelien Tingaud