Patents by Inventor Laurent Poinsot

Laurent Poinsot 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: 20230191343
    Abstract: An injection and mixing device comprises a casing having an exhaust inlet and an exhaust outlet, the casing internally defining a passage for exhaust gases from the exhaust inlet to the exhaust outlet. The exhaust inlet opens into an inlet region of the passage. The injection and mixing device further includes an injector of a liquid comprising a nitrogen oxide reducing agent or a precursor of such a reducing agent. A deflector is housed within the casing and defines in the passage a first passage connecting the inlet region to the exhaust outlet, in which the exhaust gases flow at a first average velocity, and a second passage connecting the inlet region to the exhaust outlet, in which the exhaust gases flow at a second average velocity lower than the first average velocity, The injector injects liquid into the second passage.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 22, 2023
    Inventors: Laurent POINSOT, Nicolas VICAIRE, Sylvain DHONDT, Alain ENGEL
  • Publication number: 20210363907
    Abstract: A mixer mixes an exhaust gas and a reducer, the mixer comprising a box closed and sealed to the exclusion of an inlet and an outlet, and in which the exhaust gas flows from the inlet to the outlet. A reducer sprayer is arranged so that the reducer can be sprayed into an exhaust gas flow. The box has a substantially cylindrical shape with a bottom, a cover, an outer wall, and a deflector. The bottom and the cover are substantially flat, superimposed substantially parallel, and form faces of a cylinder. The outer wall joins perimeters of the bottom and the cover and forms a generator of the cylinder. The cover and the outer wall are made together in a single piece. The deflector is an inner wall that joins the bottom and the cover substantially perpendicularly, and the bottom and the deflector are made together in a single piece.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventors: Laurent POINSOT, Alain ENGEL, Philippe ROLLIN
  • Patent number: 10967329
    Abstract: An automotive exhaust aftertreatment system includes a reducing agent mixer. The reducing agent mixer includes a mixer body and doser that injects a reducing agent into the mixer body. The reducing agent mixer mixes an exhaust stream and the reducing agent prior to the exhaust stream being discharged from the reducing agent mixer.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Eduardo Alano, Amaresh Rakkasagi, Laurent Poinsot
  • Patent number: 10907522
    Abstract: A mixer includes a baffle having a baffle inlet receiving exhaust gas from an upstream exhaust component and a baffle outlet directing exhaust gas to a downstream exhaust component. A cover provides a chamber between an internal surface of the cover and the baffle. An internal box is positioned within the chamber to cover the baffle outlet and includes a bottom wall with a peripheral wall extending about at least a portion of an outer periphery of the bottom wall. At least one deflector wall is positioned within the internal box to provide a wall surface that is spaced from the peripheral wall to define an internal flow path that diverts exhaust gas at least partially around the baffle outlet before exiting the baffle outlet. An opening is located in the peripheral wall to receive exhaust gas exiting the inlet and to direct exhaust gas into the internal flow path.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: February 2, 2021
    Inventors: Laurent Poinsot, Laurent Cuny
  • Publication number: 20200376450
    Abstract: A mixer for mixing a fluid solution, such as a diesel exhaust fluid for selective catalytic reduction, with a gas, such as an exhaust gas, includes a mixing chamber with a general cylinder shape obtained by translation of a polarly period section along a first axis. The fluid solution is sprayed in the mixing chamber by way of a first axial end thereof. The gas enters the mixing chamber through openings formed in a generatrix surface of said mixing chamber, and the mixture exits through a second axial end opposite the first axial end. The polarly period section is shaped in a star, obtained by polarly periodically repeating an elementary profile, comprising an opening defined by a first angle between a first segment passing through the two ends of said opening and a radial line passing through the distal end of said first segment.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Laurent POINSOT, Ludovic GEANT
  • Publication number: 20200269189
    Abstract: An automotive exhaust aftertreatment system includes a reducing agent mixer. The reducing agent mixer includes a mixer body and doser that injects a reducing agent into the mixer body. The reducing agent mixer mixes an exhaust stream and the reducing agent prior to the exhaust stream being discharged from the reducing agent mixer.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Inventors: Eduardo Alano, Amaresh Rakkasagi, Laurent Poinsot
  • Publication number: 20200040793
    Abstract: A mixer includes a baffle having a baffle inlet receiving exhaust gas from an upstream exhaust component and a baffle outlet directing exhaust gas to a downstream exhaust component. A cover provides a chamber between an internal surface of the cover and the baffle. An internal box is positioned within the chamber to cover the baffle outlet and includes a bottom wall with a peripheral wall extending about at least a portion of an outer periphery of the bottom wall. At least one deflector wall is positioned within the internal box to provide a wall surface that is spaced from the peripheral wall to define an internal flow path that diverts exhaust gas at least partially around the baffle outlet before exiting the baffle outlet. An opening is located in the peripheral wall to receive exhaust gas exiting the inlet and to direct exhaust gas into the internal flow path.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Inventors: Laurent Poinsot, Laurent Cuny
  • Patent number: 10316721
    Abstract: A vehicle exhaust system includes an inlet module configured to receive engine exhaust gas and a mixer housing defining an internal cavity that receives engine exhaust gas from the inlet module. An injection component is positioned within the internal cavity and has a fluid inlet and a fluid outlet to direct injected fluid into the internal cavity to mix with the engine exhaust gas. The injection component defines an injection axis and includes an inner structure defining an inner gas flow path and an outer structure defining an outer gas flow path that is between the inner and outer structures and radially outward of the inner gas flow path to improve mixing at the fluid outlet. An outlet module is configured to direct a mixture of engine exhaust gas and fluid to a downstream exhaust component.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 11, 2019
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Julien Moulieres, Eduardo Alano, Laurent Poinsot
  • Patent number: 10287948
    Abstract: A vehicle exhaust component assembly includes an inlet module configured to receive engine exhaust gas, a mixer housing defining an internal cavity that receives engine exhaust gas from the inlet module, and an injection component defining an injection axis and positioned within the internal cavity. The injection component has a fluid inlet and a fluid outlet to direct injected fluid into the internal cavity to mix with the engine exhaust gas. The injection component comprises at least a first curved sheet and a second curved sheet that cooperate with each other to surround the injection axis, wherein the second curved sheet is offset from the first curved sheet by a radial gap to create a swirling gas flow within the injection component to mix with fluid injected via the fluid inlet. An outlet module directs a mixture of engine exhaust gas and fluid to a downstream exhaust component.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: May 14, 2019
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Julien Moulieres, Eduardo Alano, Laurent Poinsot