Patents by Inventor Gregory Do

Gregory Do 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).

  • Turbocharger with variable-vane turbine nozzle having a gas pressure-responsive vane clearance control member
    Patent number: 9765687
    Abstract: A turbocharger includes a variable turbine nozzle formed between first and second walls. A variable-vane assembly has a fixed nozzle ring and a plurality of circumferentially spaced vanes disposed in the nozzle and rotatably mounted on the nozzle ring such that the vanes are pivotable. The nozzle ring defines the first wall of the turbine nozzle, each vane having a first end adjacent the first wall and a second end adjacent the second wall. The second wall of the turbine nozzle is formed by a gas pressure-responsive member that is arranged to be axially movable relative to the vanes. A first stop is positioned so that the gas pressure-responsive member is urged against the first stop by a differential gas pressure exerted on the gas pressure-responsive member so that there is a non-zero first value for a clearance between the second ends of the vanes and the second wall of the turbine nozzle.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: September 19, 2017
    Assignee: Honeywell International Inc.
    Inventors: Philippe Arnold, Denis Jeckel, Peter Rhys Davies, Christophe Riviere, Gregory Do, Dominique Petitjean, Shankar Pandurangasa Solanki
  • TURBOCHARGER WITH VARIABLE-VANE TURBINE NOZZLE HAVING A GAS PRESSURE-RESPONSIVE VANE CLEARANCE CONTROL MEMBER
    Publication number: 20150308330
    Abstract: A turbocharger includes a variable turbine nozzle formed between first and second walls. A variable-vane assembly has a fixed nozzle ring and a plurality of circumferentially spaced vanes disposed in the nozzle and rotatably mounted on the nozzle ring such that the vanes are pivotable. The nozzle ring defines the first wall of the turbine nozzle, each vane having a first end adjacent the first wall and a second end adjacent the second wall. The second wall of the turbine nozzle is formed by a gas pressure-responsive member that is arranged to be axially movable relative to the vanes. A first stop is positioned so that the gas pressure-responsive member is urged against the first stop by a differential gas pressure exerted on the gas pressure-responsive member so that there is a non-zero first value for a clearance between the second ends of the vanes and the second wall of the turbine nozzle.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 29, 2015
    Applicant: Honeywell International Inc.
    Inventors: Philippe Arnold, Denis Jeckel, Peter Rhys Davies, Christophe Riviere, Gregory Do, Dominique Petitjean, Shankar Pandurangasa Solanki