Patents by Inventor Roberto Andreutti

Roberto Andreutti 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).

  • Publication number: 20250035031
    Abstract: The disclosure relates to an internal combustion engine, comprising a main combustion chamber in a cylinder of the internal combustion engine for combusting a fuel/air mixture, and an active precombustion chamber having an ignition device protruding therein for igniting a fuel/air mixture located in the precombustion chamber and having a precombustion chamber injector that supplies fuel to the precombustion chamber, wherein at least one precombustion chamber module is provided, configured as a component separate from and inserted into the cylinder head, and wherein the precombustion chamber module comprises a cavity that forms the precombustion chamber and has at least one transfer port for fluidically connecting the precombustion chamber and main combustion chamber.
    Type: Application
    Filed: July 25, 2024
    Publication date: January 30, 2025
    Inventors: Olivier FRAGNIÈRE, Roberto ANDREUTTI, Bouzid SEBA, Fabio RICCA
  • Patent number: 12188399
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: January 7, 2025
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Patent number: 12092015
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: September 17, 2024
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Publication number: 20240200488
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 20, 2024
    Inventors: Bouzid SEBA, Ulrich WEISS, Bakir PURAN, Roberto ANDREUTTI
  • Publication number: 20230366343
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 16, 2023
    Inventors: Bouzid SEBA, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Patent number: 11698021
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: July 11, 2023
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Publication number: 20230167778
    Abstract: The disclosure relates to a method for operating an internal combustion engine comprising at least two cylinders and a system for fuel injection, in which the fuel is withdrawn from a primary tank and supplied to at least one rail in a form significantly compressed compared with atmospheric pressure, and a plurality of cylinders draw the gaseous fuel from a rail used collectively, wherein, during operation of the internal combustion engine, the pressure target value of the gaseous fuel stored in the rail is controlled to or otherwise held at a constant value or a variable target value, which changes only in a small range B, irrespective of the engine operating point.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 1, 2023
    Inventors: Bouzid SEBA, Michael-Alexandre BAERT, Sandro SILVESTRINI, Roberto ANDREUTTI
  • Publication number: 20220251998
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Application
    Filed: March 4, 2022
    Publication date: August 11, 2022
    Inventors: Bouzid SEBA, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Patent number: 11300038
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: April 12, 2022
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Ulrich Weiss, Bakir Puran, Roberto Andreutti
  • Publication number: 20210332743
    Abstract: The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 28, 2021
    Inventors: Bouzid Seba, Ulrich Weiss, Bakir Puran, Roberto Andreutti