Patents by Inventor Pascal Delapierre

Pascal Delapierre 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).

  • Passive inlet-adjustment mechanisms for compressor, and turbocharger having same
    Patent number: 10227917
    Abstract: A centrifugal compressor for a turbocharger includes a passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: March 12, 2019
    Assignee: Garrett Transportation I Inc.
    Inventors: Hani Mohtar, Stephane Pees, Pascal Delapierre, William Joseph Smith, Pascal Villemin
  • PASSIVE INLET-ADJUSTMENT MECHANISMS FOR COMPRESSOR, AND TURBOCHARGER HAVING SAME
    Publication number: 20180045107
    Abstract: A centrifugal compressor for a turbocharger includes a passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Applicant: Honeywell International Inc.
    Inventors: Hani Mohtar, Stephane Pees, Pascal Delapierre, William Joseph Smith, Pascal Villemin
  • Passive and semi-passive inlet-adjustment mechanisms for compressor, and turbocharger having same
    Patent number: 9822698
    Abstract: A centrifugal compressor for a turbocharger includes a passive or semi-passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely or in part by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: November 21, 2017
    Assignee: Honeywell International Inc.
    Inventors: Hani Mohtar, Stephane Pees, Pascal Delapierre, William Joseph Smith, Pascal Villemin
  • PASSIVE AND SEMI-PASSIVE INLET-ADJUSTMENT MECHANISMS FOR COMPRESSOR, AND TURBOCHARGER HAVING SAME
    Publication number: 20160230650
    Abstract: A centrifugal compressor for a turbocharger includes a passive or semi-passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely or in part by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 11, 2016
    Applicant: Honeywell International Inc.
    Inventors: Hani Mohtar, Stephane Pees, Pascal Delapierre, William Joseph Smith, Pascal Villemin