Patents by Inventor Sami Girgis
Sami Girgis 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).
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Patent number: 11085333Abstract: An exhaust mixer for a gas turbine engine where each outer lobe has at the downstream end a circumferential offset in a direction corresponding to that of the swirl component of the flow entering the mixer. The mixer has a crest line having at least a downstream portion curved with respect with respect to a circumferential direction of the mixer and/or a center line at the downstream end tilted with respect to a radial line extending to the tip of the outer lobe to define the circumferential offset. A method of mixing a core flow and a bypass flow surrounding the core flow with an annular mixer is also provided.Type: GrantFiled: July 9, 2013Date of Patent: August 10, 2021Assignee: PRATT & WHIINEY CANADA CORP.Inventors: Mark Cunningham, Remo Marini, Sami Girgis, Mohammad Reza Kameshki, Raja Ramamurthy
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Patent number: 10513929Abstract: A compressor turbine includes a series of compressor turbine blades each having an airfoil with a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: August 31, 2017Date of Patent: December 24, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Niloofar Moradi, Krishan Mohan, Panagiota Tsifourdaris, Sami Girgis, Vincent Paradis, Robert Huszar, Jasrobin Grewal
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Publication number: 20190063226Abstract: A compressor turbine includes a series of compressor turbine blades each having an airfoil with a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: ApplicationFiled: August 31, 2017Publication date: February 28, 2019Inventors: Niloofar MORADI, Krishan MOHAN, Panagiota TSIFOURDARIS, Sami GIRGIS, Vincent PARADIS, Robert HUSZAR, Jasrobin GREWAL
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Publication number: 20150075169Abstract: A turbine exhaust case (TEC) of a turbofan aeroengine includes a mixer for mixing exhaust gases with a bypass air stream, the TEC comprising an annular hub and an annular shroud with the mixer attached to a downstream end of the shroud, the shroud and the mixer surrounding the hub to form an annular exhaust gas duct positioned radially therebetween, a plurality of deswirling struts circumferentially spaced apart with respect to a central axis of the TEC and located within an axial length of the mixer between an upstream end and a downstream end of the mixer, the deswirling struts each having a cambered profile and extending radially across the annular exhaust gas duct and interconnecting the mixer and the hub.Type: ApplicationFiled: May 26, 2014Publication date: March 19, 2015Applicant: PRATT & WHITNEY CANADA CORP.Inventors: Mark Huzzard CUNNINGHAM, Edward Parker VLASIC, Sami GIRGIS
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Publication number: 20150013341Abstract: An exhaust mixer for a gas turbine engine where each outer lobe has at the downstream end a circumferential offset in a direction corresponding to that of the swirl component of the flow entering the mixer. The mixer has a crest line having at least a downstream portion curved with respect with respect to a circumferential direction of the mixer and/or a center line at the downstream end tilted with respect to a radial line extending to the tip of the outer lobe to define the circumferential offset. A method of mixing a core flow and a bypass flow surrounding the core flow with an annular mixer is also provided.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Inventors: Mark CUNNINGHAM, Remo MARINI, Sami GIRGIS, Mohammad Reza KAMESHKI, Raja RAMAMURTHY
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Patent number: 8104260Abstract: An exhaust mixer for a gas turbine engine including a plurality of circumferentially distributed alternating inner and outer lobes, where each of the inner lobes is configured with a circumferential offset between the base and the tip thereof, and a direction of the circumferential offset defined from the base to the tip of each of the inner lobes is the same for all of the inner lobes and opposite to that of a swirl component of a main gas path flow entering the exhaust mixer.Type: GrantFiled: May 22, 2009Date of Patent: January 31, 2012Assignee: Pratt & Whitney Canada Corp.Inventors: Sami Girgis, David F. Glasspoole
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Patent number: 8092178Abstract: The turbine blade comprises an airfoil having opposite pressure and suction sidewalls extending from a platform to a free end tip and in a chordwise direction from a leading edge to a trailing edge. The blade has two winglets extending in a chordwise direction from adjacent the leading edge to adjacent the trailing edge. Each winglet extends from the pressure sidewall upwardly and outwardly from the sidewall to provide a channel between them. Each winglet has a free end extending laterally beyond a surface defined by the pressure sidewall offset.Type: GrantFiled: November 28, 2008Date of Patent: January 10, 2012Assignee: Pratt & Whitney Canada Corp.Inventors: Remo Marini, Sami Girgis
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Patent number: 7862303Abstract: A single stage high pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: October 12, 2007Date of Patent: January 4, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Mohamad Sleiman, Michel Dion, Sami Girgis
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Patent number: 7857594Abstract: A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 28, 2006Date of Patent: December 28, 2010Assignee: Pratt & Whitney Canada Corp.Inventors: John Kidikian, Edward Vlasic, Sami Girgis
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Publication number: 20100293958Abstract: An exhaust mixer for a gas turbine engine including a plurality of circumferentially distributed alternating inner and outer lobes, where each of the inner lobes is configured with a circumferential offset between the base and the tip thereof, and a direction of the circumferential offset defined from the base to the tip of each of the inner lobes is the same for all of the inner lobes and opposite to that of a swirl component of a main gas path flow entering the exhaust mixer.Type: ApplicationFiled: May 22, 2009Publication date: November 25, 2010Inventors: Sami GIRGIS, David F. Glasspoole
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Publication number: 20100135813Abstract: The turbine blade comprises an airfoil having opposite pressure and suction sidewalls extending from a platform to a free end tip and in a chordwise direction from a leading edge to a trailing edge. The blade has two winglets extending in a chordwise direction from adjacent the leading edge to adjacent the trailing edge. Each winglet extends from the pressure sidewall upwardly and outwardly from the sidewall to provide a channel between them. Each winglet has a free end extending laterally beyond a surface defined by the pressure sidewall offset.Type: ApplicationFiled: November 28, 2008Publication date: June 3, 2010Inventors: Remo Marini, Sami Girgis
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Patent number: 7632074Abstract: A single stage high pressure turbine blade includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 28, 2006Date of Patent: December 15, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Constantinos Ravanis, Krishan Mohan, Sami Girgis, Edward Vlasic
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Patent number: 7625183Abstract: A single stage low pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: September 5, 2006Date of Patent: December 1, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Panagiota Tsifourdaris, Sami Girgis
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Patent number: 7625182Abstract: A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: September 5, 2006Date of Patent: December 1, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Stephen Mah, Sami Girgis
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Publication number: 20090274558Abstract: A single stage high pressure turbine blade includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: ApplicationFiled: November 28, 2006Publication date: November 5, 2009Inventors: Constantinos Ravanis, Krishan Mohan, Sami Girgis, Edward Vlasic
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Patent number: 7611326Abstract: A two-stage high pressure turbine includes a first stage vane having an airfoil with a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: September 6, 2006Date of Patent: November 3, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Ricardo Trindade, Edward Vlasic, Sami Girgis
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Patent number: 7568891Abstract: A single stage high pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 22, 2006Date of Patent: August 4, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Krishan Mohan, Sami Girgis
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Patent number: 7568889Abstract: A single stage high pressure turbine blade includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 22, 2006Date of Patent: August 4, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Krishan Mohan, Sami Girgis
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Patent number: 7566200Abstract: A single stage high pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 28, 2006Date of Patent: July 28, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Remo Marini, Edward Vlasic, Sami Girgis
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Patent number: 7559747Abstract: A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are Joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: November 22, 2006Date of Patent: July 14, 2009Assignee: Pratt & Whitney Canada Corp.Inventors: Krishan Mohan, Sami Girgis