Patents by Inventor Dustin Sharp

Dustin Sharp 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 to perform rebreathe mode transitions
    Patent number: 12553398
    Abstract: An engine includes pistons, a crankshaft, cylinders, an intake manifold, an exhaust manifold, intake valves, exhaust valves, a fuel rail, and an Electronic Control Unit (ECU). The ECU coordinates operations of the intake valves, the exhaust valves, and the fuel injectors based upon a position of the crankshaft to control the engine to operate in two modes. The two modes include a typical engine operating mode and a rebreathe engine operating mode. The typical engine operating mode includes the ECU controlling the exhaust valves to be actuated after the intake valves are actuated. The rebreathe engine operating mode includes the ECU controlling the exhaust valves to be actuated both during and after the intake valves are actuated. The ECU also controls a Start of Injection (SOI) of the fuel injectors to be retarded during the typical engine operating mode and to be advanced during the rebreathe engine operating mode.
    Type: Grant
    Filed: June 28, 2024
    Date of Patent: February 17, 2026
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Christopher E. Whitney, Ashish Shah, Mark Sellnau, Dustin Sharp, Praveen Kumar
  • METHOD TO PERFORM REBREATHE MODE TRANSITIONS
    Publication number: 20260002481
    Abstract: An engine includes pistons, a crankshaft, cylinders, an intake manifold, an exhaust manifold, intake valves, exhaust valves, a fuel rail, and an Electronic Control Unit (ECU). The ECU coordinates operations of the intake valves, the exhaust valves, and the fuel injectors based upon a position of the crankshaft to control the engine to operate in two modes. The two modes include a typical engine operating mode and a rebreathe engine operating mode. The typical engine operating mode includes the ECU controlling the exhaust valves to be actuated after the intake valves are actuated. The rebreathe engine operating mode includes the ECU controlling the exhaust valves to be actuated both during and after the intake valves are actuated. The ECU also controls a Start of Injection (SOI) of the fuel injectors to be retarded during the typical engine operating mode and to be advanced during the rebreathe engine operating mode.
    Type: Application
    Filed: June 28, 2024
    Publication date: January 1, 2026
    Applicant: ARAMCO SERVICES COMPANY
    Inventors: Christopher E. Whitney, Ashish Shah, Mark Sellnau, Dustin Sharp, Praveen Kumar