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).

  • Publication number: 20190063242
    Abstract: 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: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventor: Panagiota TSIFOURDARIS
  • Patent number: 9909434
    Abstract: An integrated strut and turbine vane nozzle (ISV) comprising: inner and outer duct walls defining a flow passage therebetween, an array of circumferentially spaced-apart struts extending radially across the flow passage, and an array of circumferentially spaced-apart vanes extending radially across the flow passage. At least one of the struts is aligned in the circumferential direction with an associated one of the vanes and forms therewith an integrated strut-vane airfoil. The adjacent vanes on opposed sides of the integrated strut-vane airfoil have uneven axial chords relative to the other vanes.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: March 6, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Panagiota Tsifourdaris, Edward Vlasic, Niloofar Moradi, Francois Doyon
  • Publication number: 20170022832
    Abstract: An integrated strut and turbine vane nozzle (ISV) comprising: inner and outer duct walls defining a flow passage therebetween, an array of circumferentially spaced-apart struts extending radially across the flow passage, and an array of circumferentially spaced-apart vanes extending radially across the flow passage. At least one of the struts is aligned in the circumferential direction with an associated one of the vanes and forms therewith an integrated strut-vane airfoil. The adjacent vanes on opposed sides of the integrated strut-vane airfoil have uneven axial chords relative to the other vanes.
    Type: Application
    Filed: November 12, 2015
    Publication date: January 26, 2017
    Inventors: PANAGIOTA TSIFOURDARIS, EDWARD VLASIC, NILOOFAR MORADI, FRANCOIS DOYON
  • Patent number: 8979487
    Abstract: A high pressure turbine includes a 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: Grant
    Filed: April 11, 2012
    Date of Patent: March 17, 2015
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Panagiota Tsifourdaris, Raja Ramamurthy
  • Publication number: 20140255159
    Abstract: 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: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: Pratt & Whitney Canada Corp.
    Inventors: VINCENT PARADIS, EDWARD VLASIC, PANAGIOTA TSIFOURDARIS
  • Publication number: 20130272887
    Abstract: A high pressure turbine includes a 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: Application
    Filed: April 11, 2012
    Publication date: October 17, 2013
    Inventors: Panagiota Tsifourdaris, Raja Ramamurthy
  • Patent number: 8439645
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Grant
    Filed: March 30, 2010
    Date of Patent: May 14, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Panagiota Tsifourdaris
  • Patent number: 8182204
    Abstract: A gas turbine engine is provided having an annular duct having an inner duct wall and an outer duct wall. At least one strut extends between the inner duct wall and the outer duct wall. The strut has an aerodynamic shape. At least one vane located circumferentially adjacent the strut and axially behind a leading edge of the strut, and an aerodynamic deflector located circumferentially between each strut and each vane. The aerodynamic deflector may positioned axially upstream of a flow separation point which would otherwise be caused by the strut.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: May 22, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Eric Durocher, Mohamad Sleiman, Panagiota Tsifourdaris
  • Patent number: 8167568
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Grant
    Filed: March 26, 2010
    Date of Patent: May 1, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Panagiota Tsifourdaris
  • Patent number: 8105043
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Grant
    Filed: April 1, 2010
    Date of Patent: January 31, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Panagiota Tsifourdaris
  • Publication number: 20110243748
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Inventor: Panagiota Tsifourdaris
  • Publication number: 20110236214
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Application
    Filed: March 26, 2010
    Publication date: September 29, 2011
    Inventor: Panagiota TSIFOURDARIS
  • Publication number: 20100329874
    Abstract: A two-stage high pressure turbine includes a second stage blade 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: Application
    Filed: April 1, 2010
    Publication date: December 30, 2010
    Inventor: Panagiota Tsifourdaris
  • Publication number: 20100272566
    Abstract: A gas turbine engine is provided having an annular duct having an inner duct wall and an outer duct wall. At least one strut extends between the inner duct wall and the outer duct wall. The strut has an aerodynamic shape. At least one vane located circumferentially adjacent the strut and axially behind a leading edge of the strut, and an aerodynamic deflector located circumferentially between each strut and each vane. The aerodynamic deflector may positioned axially upstream of a flow separation point which would otherwise be caused by the strut.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric DUROCHER, Mohamad SLEIMAN, Panagiota TSIFOURDARIS
  • Patent number: 7625183
    Abstract: 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: Grant
    Filed: September 5, 2006
    Date of Patent: December 1, 2009
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Panagiota Tsifourdaris, Sami Girgis
  • Patent number: 7559746
    Abstract: A single stage low 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: Grant
    Filed: November 22, 2006
    Date of Patent: July 14, 2009
    Assignee: pratt & Whitney Canada Corp.
    Inventors: Panagiota Tsifourdaris, Krishan Mohan, Sami Girgis
  • Publication number: 20080118358
    Abstract: A single stage low 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: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventors: Panagiota Tsifourdaris, Krishan Mohan, Sami Girgis
  • Patent number: 7367779
    Abstract: 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: Grant
    Filed: March 2, 2006
    Date of Patent: May 6, 2008
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Sami Girgis, Panagiota Tsifourdaris
  • Publication number: 20080056894
    Abstract: 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: Application
    Filed: September 5, 2006
    Publication date: March 6, 2008
    Inventors: Panagiota Tsifourdaris, Sami Girgis
  • Publication number: 20070207037
    Abstract: 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: Application
    Filed: March 2, 2006
    Publication date: September 6, 2007
    Inventors: Sami Girgis, Panagiota Tsifourdaris