Patents by Inventor Pavel Voburka

Pavel Voburka 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).

  • Centrifugal compressor for a turbocharger, having pressure-balanced adjustable-trim mechanism
    Patent number: 10619561
    Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism operable to move between an open position and a closed position. The inlet-adjustment mechanism includes a plurality of blades disposed about the compressor air inlet and located between an upstream wall surface and a downstream wall surface of an annular space within the air inlet wall. The blades are pivotable about respective pivot points such that the blades extend radially inward from the annular space into the air inlet when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. Aerodynamic pressure balancing across the blades is achieved by spacing features that space a majority of the upstream surface of each blade from the opposing upstream wall surface.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: April 14, 2020
    Assignee: Garrett Transportation I Inc.
    Inventors: Alain Lombard, Sowmya Bolakonda, Pavel Voburka, Hani Mohtar, Stephane Pees
  • CENTRIFUGAL COMPRESSOR FOR A TURBOCHARGER, HAVING PRESSURE-BALANCED ADJUSTABLE-TRIM MECHANISM
    Publication number: 20190136755
    Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism operable to move between an open position and a closed position. The inlet-adjustment mechanism includes a plurality of blades disposed about the compressor air inlet and located between an upstream wall surface and a downstream wall surface of an annular space within the air inlet wall. The blades are pivotable about respective pivot points such that the blades extend radially inward from the annular space into the air inlet when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. Aerodynamic pressure balancing across the blades is achieved by spacing features that space a majority of the upstream surface of each blade from the opposing upstream wall surface.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 9, 2019
    Applicant: Honeywell International Inc.
    Inventors: Alain Lombard, Sowmya Bolakonda, Pavel Voburka, Hani Mohtar, Stephane Pees