Patents by Inventor Bouzid Seba

Bouzid Seba 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).

  • Patent number: 11920545
    Abstract: An internal combustion engine has an intake manifold injection, at least two combustion chambers, at least one central rail for supplying fuel for the intake manifold injection, and at least one air distributor for supplying air to the individual combustion chambers. The central rail is attached to the air distributor, or the central rail and the air distributor are formed as an integral component.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: March 5, 2024
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Bakir Puran, Olivier Fragnière
  • Patent number: 11885284
    Abstract: The invention relates to a fuel injection device for an internal combustion engine comprising at least one central rail which is in fluid communication with at least one primary fuel tank, characterized in that at least one auxiliary fuel pressure accumulator is provided, the internal volume of which is in communication with the central rail via at least one control valve in order to temporarily provide a simultaneous fuel supply to the central rail from the auxiliary fuel pressure accumulator and the primary fuel tank.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: January 30, 2024
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bouzid Seba, Bakir Puran
  • 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: 11788494
    Abstract: The invention relates to a system for supplying a gaseous fuel that comprises a low temperature tank for receiving the fuel in its liquid aggregate state achieved by cooling and comprises a rail that is fluidically connected to at least one injector device for discharging gaseous fuel into a combustion space. The system is characterized in that it has a pressure store that is configured to receive gaseous fuel and that is fluidically connectable to both the low temperature tank and the rail to buffer fuel coming from the low temperature tank and to supply it to the rail.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: October 17, 2023
    Assignee: LIEBHERR MACHINES BULLE SA
    Inventors: Bouzid Seba, Ulrich Weiss
  • Publication number: 20230323841
    Abstract: The invention relates to a system for supplying a gaseous fuel that comprises a low temperature tank for receiving the fuel in its liquid aggregate state achieved by cooling and comprises a rail that is fluidically connected to at least one injector device for discharging gaseous fuel into a combustion space. The system is characterized in that it has a pressure store that is configured to receive gaseous fuel and that is fluidically connectable to both the low temperature tank and the rail to buffer fuel coming from the low temperature tank and to supply it to the rail.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Inventors: Bouzid SEBA, Ulrich WEISS
  • Publication number: 20230296052
    Abstract: The disclosure relates to a method for operating a gas engine which comprises at least one combustion chamber and at least two fuel supply paths for supplying fuel to the at least one combustion chamber, wherein direct injection or injection into the intake section for the at least one combustion chamber can be carried out selectively via the at least two different fuel supply paths, wherein, with respective reference to the main injection, in a first operating mode, the fuel portion required for loading the at least one combustion chamber is supplied to the combustion chamber exclusively by direct injection, and, in a second operating mode, the fuel portion required for loading the at least one combustion chamber is supplied exclusively in the form of a fuel-air mixture via the air inlet of the combustion chamber.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventors: Dr. Bouzid SEBA, Dimitri ROHRER, Daniel VIDINHA SANTOS
  • Publication number: 20230296053
    Abstract: The invention relates to an engine having at least two combustion chambers, a shared high-pressure fuel storage tank for holding fuel gas available as pressurized gas, and means for direct injection of the fuel gas from the high-pressure fuel storage tank into the combustion chambers, wherein it is possible to provide the fuel gas in the high-pressure fuel storage tank from a primary tank, wherein it is possible to withdraw the fuel gas from the primary tank and/or to generate it from a fuel withdrawn from the primary tank along a conversion path, and a gas buffer storage tank connected to the high-pressure fuel storage tank discharges fuel gas from the high-pressure fuel storage tank into the gas buffer storage tank, and the gas buffer storage tank is further connected via a separate fuel gas path to the air intake section of the gas combustion engine.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventors: Bouzid SEBA, Michaael-Alexandre BAERT, Alix NOCA
  • 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: 20230167764
    Abstract: The disclosure relates to a method for operating a supercharged internal combustion engine having at least one cylinder group with a number n of combustion chambers, wherein, during a first operating state, all n combustion chambers are supplied with combustion air via a primary charge air path and, during a second operating state, only a portion of the n combustion chambers are supplied with combustion air from the primary charge air path and another portion of the n combustion chambers are supplied with combustion air from a separate compressed air reservoir.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 1, 2023
    Inventors: Bouzid SEBA, Michael-Alexandre BAERT, Sandro SILVESTRINI, Alix NOCA
  • Patent number: 11639691
    Abstract: The invention relates to a device for supplying a gaseous fuel to an engine that comprises a gas accumulator for receiving highly pressurized gaseous fuel, a gas buffer for receiving medium pressurized gaseous fuel, a gas supply device for delivering a gaseous fuel into an engine combustion space, a first gas line that connects the gas accumulator to the gas buffer and whose gas flow can be regulated via a first valve, a second gas line that connects the gas accumulator to the gas buffer and whose gas flow can be regulated via a second valve, and a third gas line that connects the gas buffer to the gas supply device. The device is further characterized in that a compressor is arranged in the second gas line to increase a pressure of a gaseous fuel flowing from the gas accumulator to the gas buffer.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 2, 2023
    Assignee: Liebherr Machines Bulle SA
    Inventors: Bakir Puran, Bouzid Seba, Ulrich Weiss
  • Publication number: 20230019785
    Abstract: The invention relates to a fuel injection device for an internal combustion engine comprising at least one central rail which is in fluid communication with at least one primary fuel tank, characterized in that at least one auxiliary fuel pressure accumulator is provided, the internal volume of which is in communication with the central rail via at least one control valve in order to temporarily provide a simultaneous fuel supply to the central rail from the auxiliary fuel pressure accumulator and the primary fuel tank.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 19, 2023
    Inventors: Bouzid SEBA, Bakir Puran
  • Publication number: 20230008932
    Abstract: The invention relates to an internal combustion engine with intake manifold injection, comprising at least two combustion chambers, at least one central rail for supplying fuel for the intake manifold injection, and at least one air distributor for supplying air to the individual combustion chambers, characterized in that the central rail is attached to the air distributor, or the central rail and the air distributor are formed as an integral component.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 12, 2023
    Inventors: Bouzid SEBA, Bakir PURAN, Olivier FRANGNIERE
  • Publication number: 20220268200
    Abstract: The disclosure relates to a fuel supply device for supplying a fuel to an internal combustion engine comprising: a fuel store for storing a primary fuel; and at least two parallel fuel supply paths that are connected to the fuel store, on the one hand, and to the internal combustion engine, on the other hand, wherein the primary fuel can be supplied from the fuel store to the internal combustion engine by means of the first fuel supply path for the purpose of combustion, and the second fuel supply path has at least one reforming device that reforms the primary fuel supplied from the fuel tank into a secondary fuel, and to supply at least a portion of the produced secondary fuel to the internal combustion engine for the purpose of combustion.
    Type: Application
    Filed: February 22, 2022
    Publication date: August 25, 2022
    Inventors: Bouzid SEBA, Ulrich WEISS, Pierre GOBIN
  • 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: 20210372350
    Abstract: The invention relates to a system for supplying a gaseous fuel that comprises a low temperature tank for receiving the fuel in its liquid aggregate state achieved by cooling and comprises a rail that is fluidically connected to at least one injector device for discharging gaseous fuel into a combustion space. The system is characterized in that it has a pressure store that is configured to receive gaseous fuel and that is fluidically connectable to both the low temperature tank and the rail to buffer fuel coming from the low temperature tank and to supply it to the rail.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 2, 2021
    Inventors: Bouzid SEBA, Ulrich WEISS
  • 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
  • Publication number: 20210301775
    Abstract: The invention relates to a device for supplying a gaseous fuel to an engine that comprises a gas accumulator for receiving highly pressurized gaseous fuel, a gas buffer for receiving medium pressurized gaseous fuel, a gas supply device for delivering a gaseous fuel into an engine combustion space, a first gas line that connects the gas accumulator to the gas buffer and whose gas flow can be regulated via a first valve, a second gas line that connects the gas accumulator to the gas buffer and whose gas flow can be regulated via a second valve, and a third gas line that connects the gas buffer to the gas supply device. The device is further characterized in that a compressor is arranged in the second gas line to increase a pressure of a gaseous fuel flowing from the gas accumulator to the gas buffer.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Bakir PURAN, Bouzid SEBA, Ulrich WEISS
  • Publication number: 20140305388
    Abstract: A drive system has an internal combustion machine that drives a hydraulic system and/or that includes a controller actuating the internal combustion machine such that, with transient load moment, the internal combustion machine operates at a constant set speed. The drive system includes a flywheel accumulator that is connected with the output shaft of the internal combustion machine via a step-up gear unit.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: Liebherr Machines Bulle SA
    Inventors: Benoît GAY, Michael DEEKEN, Marcus QUASTHOFF, Bouzid SEBA, Damien DUJON