Patents by Inventor Andreas Eleftheriou

Andreas Eleftheriou 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).

  • Patent number: 7797922
    Abstract: A casing for an aircraft turbine bypass engine comprises a splitter having slots to receive and be welded to a plurality of struts extending between an outer ring and an inner hub of the casing.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: September 21, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, David Denis, Denis Leclair, Yves Roussel
  • Patent number: 7793488
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: September 14, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Publication number: 20100209251
    Abstract: A fan blade platform assembly comprises a plate insert shaped and dimensioned to span a gap formed between the opposed facing platforms of adjacent fan blades of a turbo fan engine. The plate insert can be retained in engagement under arresting shoulders provided on the adjacent fan blades by a spring force exerted by a spring insert held captive and in contact between the plate insert and an outer surface of the fan hub.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventors: David H. Menheere, Andreas Eleftheriou, Philip Ridyard
  • Patent number: 7770378
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: August 10, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Patent number: 7765787
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: August 3, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Patent number: 7739866
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: June 22, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Patent number: 7565796
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: July 28, 2009
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Publication number: 20090136348
    Abstract: A retaining ring is mounted in frictional engagement with a static gas turbine engine part, such as a compressor shroud, in order to provide frictional damping.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Inventors: Philippe Bonniere, Andreas Eleftheriou, Ignatius Theratil, Aido Abate
  • Publication number: 20080240917
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Application
    Filed: July 20, 2007
    Publication date: October 2, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, Kevin Walter LOBO, Maurice WEINBERG, Quantai LIU
  • Patent number: 7370467
    Abstract: A casing for a gas turbine includes a fan case, an intermediate case and a gas generator case integrated with one another.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: May 13, 2008
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Publication number: 20080086882
    Abstract: The method comprises flowforming at least one section of the preform and then welding at least one additional element to the at least one flowformed section.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 17, 2008
    Inventors: Andreas Eleftheriou, Stevan Bokan, Jason Fish, Steven Hunt
  • Publication number: 20080086881
    Abstract: The method is used for making an annular gas turbine engine case, the method comprises flowforming a first area of the preform to provide a first annular case portion having a first thickness and a second area having a second thickness, the first and the second average thickness being different.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 17, 2008
    Inventors: Andreas Eleftheriou, Steven Bokan, Barry Barnett, Steven Hunt, Czeslaw Wojtyczka, John Paterson
  • Publication number: 20080083227
    Abstract: A single oil nozzle unit is mounted in a bearing compartment of a gas turbine engine for providing multiple individual jets for the individual bearing components in the bearing compartment.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 10, 2008
    Inventors: Andreas Eleftheriou, David Denis, Brent Hayward, David H. Menheere
  • Publication number: 20080073154
    Abstract: An oil feed assembly suitable for use in a gas turbine engine having a bearing housing, an outer ring surrounding the bearing housing and a monocase extending therebetween. The assembly provides an oil supply tube for extension within the monocase and between the outer ring and the bearing housing. An oil nozzle support means is employed for selective releasable engagement with one end of the oil supply tube. This is also supported by an oil supply tube support means for selective releasable engagement with a second end of the oil supply tube. A coupling means for coupling said oil supply tube support means and the outer ring completes the assembly.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, David DENIS, Denis LECLAIR, Julien GARON, Jean FOURNIER
  • Publication number: 20080072566
    Abstract: A gas turbine engine has a compressor assembly and a turbine assembly rotationally mounted on a shaft, the turbine assembly being driven by hot gases discharged from a combustion chamber disposed between the compressor and turbine assemblies and an engine case encasing a portion of the engine, the case having an oblong bleed hole having a major axis parallel to a gaspath direction and a minor axis perpendicular to the gaspath direction.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, David DENIS
  • Publication number: 20080073152
    Abstract: An oil shield for an upper tower shaft gear. The shield provides a plurality of shield members for encapsulating the upper tower shaft gear to reduce the amount of displaced oil from contacting surrounding engine components. The shield includes a first shield member adjacent a top surface of the upper tower shaft gear and a second shield member adjacent an under surface of the upper tower shaft gear which is engaged with the first shield member to enclose the upper tower shaft gear. A third shield member is positioned adjacent the second shield member. The shield members permit oil drainage in a predetermined pattern without undesirable dispersion within the engine compartments.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 27, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, David DENIS
  • Publication number: 20080063508
    Abstract: A fan case and method of manufacturing a fan case, for a gas turbine engine, where the fan case has a hollow tubular metal shell with: a central axis of symmetry; an inlet; an outlet; and peripheral wall about the axis to encompass the tips of a plurality of rotary fan blades, and the shell wall includes an upstream portion defining an annular abradable material recess that extends axially having an upstream end at the shell inlet and a downstream end located upstream from the shell outlet.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 13, 2008
    Inventors: Barry Barnett, David Denis, Andreas Eleftheriou
  • Publication number: 20080010996
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 17, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, Kevin LOBO, Maurice WEINBERG, Quantai LIU
  • Publication number: 20080010970
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 17, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, Kevin LOBO, Maurice WEINBERG, Quantai LIU
  • Publication number: 20080014084
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 17, 2008
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Andreas ELEFTHERIOU, Kevin LOBO, Maurice WEINBERG, Quantai LIU