Patents by Inventor Panagiota Tsifourdaris
Panagiota Tsifourdaris 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: 11867081Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: January 26, 2023Date of Patent: January 9, 2024Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Abdulhalim Twahir, Panagiota Tsifourdaris, Daniel Lecuyer, Masoud Roshan Fekr, Stephane Bigras
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Patent number: 11603763Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: November 12, 2021Date of Patent: March 14, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Abdulhalim Twahir, Panagiota Tsifourdaris, Niloofar Moradi, Daniel Lecuyer, Jocelyn Menard
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Patent number: 11578601Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: November 12, 2021Date of Patent: February 14, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Abdulhalim Twahir, Panagiota Tsifourdaris, Francis Gemme, Stephane Bigras, William Mindenhall
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Patent number: 11578602Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an exterior airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: October 14, 2021Date of Patent: February 14, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Fariba Ajalli, Panagiota Tsifourdaris, Lorenzo Sanzari, Francis Gemme, Stephane Bigras, William Mindenhall, Masoud Roshan Fekr
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Patent number: 11572790Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: November 11, 2021Date of Patent: February 7, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Remo Marini, Panagiota Tsifourdaris, Nicolas Grivas, Daniel Lecuyer, Michael Papple, Robert Huszar, Othmane Leghzaouni, Jonathan Dorai, Jasrobin Grewal
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Patent number: 11536141Abstract: A turbine vane for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface. The surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: February 4, 2022Date of Patent: December 27, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Mohammed Ennacer, Panagiota Tsifourdaris, Remo Marini, Niloofar Moradi, Daniel Lecuyer, Patricia Phutthavong, Farzad Ashrafi
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Patent number: 11512595Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.Type: GrantFiled: February 4, 2022Date of Patent: November 29, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Fariba Ajalli, Panagiota Tsifourdaris, Michael Paolucci, Othmane Leghzaouni, Stephane Bigras
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Patent number: 11199096Abstract: A turbomachine airfoil element comprises an airfoil having: an inboard end; an outboard end; a leading edge; a trailing edge; a pressure side; and a suction side. A span between the inboard end and the outboard end is 1.75-2.20 inches. A chord length at 50% span is 1.05-1.35 inches. At least two of: a first mode resonance frequency is 2400±10% Hz; a second mode resonance frequency is 4950±10% Hz; a third mode resonance frequency is 7800±10% Hz; a fourth mode resonance frequency is 8700±10% Hz; and a fifth mode resonance frequency is 12500±10% Hz.Type: GrantFiled: January 15, 2018Date of Patent: December 14, 2021Assignee: Raytheon Technologies CorporationInventors: Michael Leslie Clyde Papple, David A. Niezelski, Daniel Lecuyer, XingYun Haggard, Domenico Di Florio, Francois Caron, John R. Battye, Panagiota Tsifourdaris, Ghislain Plante, Timothy J. Jennings, Rene Paquet
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Patent number: 11193380Abstract: An integrated strut and turbine vane nozzle (ISV) has inner and outer annular duct walls defining an annular flow passage therebetween. Circumferentially spaced-apart struts extend radially across the flow passage. Circumferentially spaced-apart vanes also extend radially across the flow passage and define a plurality of inter-vane passages. Each of the struts is integrated to an associated one of the vanes to form therewith an integrated strut-vane airfoil. The inter-vane passages on either side of the integrated strut-vane airfoil may be adjusted for aerodynamic considerations. The vanes may be made separately from the struts and manufactured such as to cater for potential misalignments between the parts.Type: GrantFiled: January 21, 2019Date of Patent: December 7, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Vincent Paradis, Edward Vlasic, Panagiota Tsifourdaris
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Patent number: 10598034Abstract: A power turbine includes a second stage vane having an airfoil with a cold un-coated nominal 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: March 24, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Panagiota Tsifourdaris
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Patent number: 10598023Abstract: A power turbine includes a second stage blade having an airfoil with a cold un-coated nominal 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 1, 2017Date of Patent: March 24, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Panagiota Tsifourdaris, Remy Synnott, Anthony Pham, Jaideep Gahlawat, Ghislain Plante
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Publication number: 20200024985Abstract: An integrated strut and turbine vane nozzle (ISV) has inner and outer annular duct walls defining an annular flow passage therebetween. Circumferentially spaced-apart struts extend radially across the flow passage. Circumferentially spaced-apart vanes also extend radially across the flow passage and define a plurality of inter-vane passages. Each of the struts is integrated to an associated one of the vanes to form therewith an integrated strut-vane airfoil. The inter-vane passages on either side of the integrated strut-vane airfoil may be adjusted for aerodynamic considerations. The vanes may be made separately from the struts and manufactured such as to cater for potential misalignments between the parts.Type: ApplicationFiled: January 21, 2019Publication date: January 23, 2020Inventors: Vincent PARADIS, Edward VLASIC, Panagiota TSIFOURDARIS
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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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Patent number: 10487661Abstract: A power turbine includes a first stage vane having an airfoil with a cold un-coated nominal 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: November 26, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Krishan Mohan, Panagiota Tsifourdaris
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Patent number: 10329915Abstract: A power turbine includes a first stage blade having an airfoil with a cold un-coated nominal 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 1, 2017Date of Patent: June 25, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Krishan Mohan, Panagiota Tsifourdaris, Lorenzo Sanzari, Igal Acher Abenhaim, Anthony Pham
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Publication number: 20190071974Abstract: A power turbine includes a first stage blade having an airfoil with a cold un-coated nominal 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: September 1, 2017Publication date: March 7, 2019Inventors: Krishan MOHAN, Panagiota TSIFOURDARIS, Lorenzo SANZARI, Igal Acher ABENHAIM, Anthony PHAM
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Publication number: 20190071975Abstract: A power turbine includes a second stage blade having an airfoil with a cold un-coated nominal 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: September 1, 2017Publication date: March 7, 2019Inventors: Panagiota TSIFOURDARIS, Remy SYNNOTT, Anthony PHAM, Jaideep GAHLAWAT, Ghislain PLANTE
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Patent number: 10221707Abstract: An integrated strut and turbine vane nozzle (ISV) has inner and outer annular duct walls defining an annular flow passage therebetween. Circumferentially spaced-apart struts extend radially across the flow passage. Circumferentially spaced-apart vanes also extend radially across the flow passage and define a plurality of inter-vane passages. Each of the struts is integrated to an associated one of the vanes to form therewith an integrated strut-vane airfoil. The inter-vane passages on either side of the integrated strut-vane airfoil may be adjusted for aerodynamic considerations. The vanes may be made separately from the struts and manufactured such as to cater for potential misalignments between the parts.Type: GrantFiled: March 7, 2013Date of Patent: March 5, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Vincent Paradis, Edward Vlasic, Panagiota Tsifourdaris
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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: 20190063225Abstract: A power turbine includes a first stage vane having an airfoil with a cold un-coated nominal 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: Krishan MOHAN, Panagiota TSIFOURDARIS