Patents by Inventor Philippe Hazevis

Philippe Hazevis 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).

  • Device for cooling a turbomachine turbine casing
    Patent number: 7972107
    Abstract: A device for cooling a turbine casing in a turbomachine including a turbine is disclosed. The turbine includes several stages, at least one of the stages includes a nozzle assembly formed of an annular row of fixed vanes and an impeller mounted to rotate in a cylindrical shroud formed of ring sectors fixed to the casing, a cooling circuit including ducts carrying cooling air into cavities formed in the vanes of the nozzle assembly, and an air-carrying arrangement which carries air to casing upstream hooks for suspending the ring sectors.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: July 5, 2011
    Assignee: SNECMA
    Inventors: Alexandre Nicolas Dervaux, Philippe Hazevis, Renaud Martet, Philippe Jean-Pierre Pabion, Stephanie Roger, Eric Schwartz