Patents by Inventor Daljit Singh GREWAL

Daljit Singh GREWAL 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).

  • Anti-vortex device for a gas turbine engine compressor
    Patent number: 8453463
    Abstract: An anti-vortex device for use in a compressor rotor assembly of a gas turbine engine is described. Spaced-apart radial passageways extend from an axially extending passage provided in a central area of the device to an outer peripheral rim surface thereof. The radial passageways channel air from the primary gaspath about the rotor assembly to the axially extending passage where the air is directed into a central axial passage of the rotor assembly.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: June 4, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Daljit Singh Grewal, Alessandro Ciampa, Jean-Francois Caron
  • ANTI-VORTEX DEVICE FOR A GAS TURBINE ENGINE COMPRESSOR
    Publication number: 20100300113
    Abstract: An anti-vortex device for use in a compressor rotor assembly of a gas turbine engine is described. Spaced-apart radial passageways extend from an axially extending passage provided in a central area of the device to an outer peripheral rim surface thereof. The radial passageways channel air from the primary gaspath about the rotor assembly to the axially extending passage where the air is directed into a central axial passage of the rotor assembly.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Inventors: Daljit Singh GREWAL, Alessandro CIAMPA, Jean-Francois CARON