Patents by Inventor Govindarajan Rengarajan
Govindarajan Rengarajan 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: 9175693Abstract: An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table, the scalable table selected from the group of tables consisting of TABLES 1-11, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: GrantFiled: June 19, 2012Date of Patent: November 3, 2015Assignee: General Electric CompanyInventors: Michael James Dutka, John Duong, Ya-Tien Chiu, Alexander David Shrum, Kelvin Rono Aaron, Christopher Edward LaMaster, San-Dar Gau, Franco Monteleone, Paul Griffin Delvernois, Matthew John McKeever, Govindarajan Rengarajan, Jeremy Peter Latimer, Marc Edward Blohm, Eric Richard Bonini, Venkata Siva Prasad Chaluvadi
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Patent number: 9145777Abstract: An article of manufacture has a first component configured for use with a turbomachine. The first component is configured for attachment to a second component, and reduces the possibility of attachment with an undesired third component by modification of a characteristic of the first component. This modification is matched by a complementary characteristic of the second component. The first component has a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table selected from the group consisting of TABLES 1-11. Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying by a number. X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height. The airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: GrantFiled: July 24, 2012Date of Patent: September 29, 2015Assignee: General Electric CompanyInventors: Michael James Dutka, John Duong, Ya-Tien Chiu, Alexander David Shrum, Kelvin Rono Aaron, Christopher Edward LaMaster, San-Dar Gau, Franco Monteleone, Paul Griffin Delvernois, Matthew John McKeever, Govindarajan Rengarajan, Jeremy Peter Latimer, Marc Edward Blohm, Eric Richard Bonini, Venkata Siva Prasad Chaluvadi, Jamie Dean Lumpkin, Thomas Robbins Tipton
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Patent number: 9017019Abstract: An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table, the scalable table selected from the group of tables consisting of TABLES 1-11, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: GrantFiled: June 19, 2012Date of Patent: April 28, 2015Assignee: General Electric CompanyInventors: Matthew John McKeever, Gang Liu, Umesh Garg, Ryan Wesley Murphy, Edward Charles Schurr, Michael James Dutka, Govindarajan Rengarajan, Paul Griffin Delvernois, Ya-Tien Chiu, Roger Claude Beharrysingh, Marc Edward Blohm, SenthilKumar Narendran
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Patent number: 8727733Abstract: A rotor blade and blade retention key assembly includes: a radially outer airfoil, a shank and a radially inner attachment dovetail. The attachment dovetail has a radially innermost surface formed with a notch at one axial end thereof, and a retention key is received in the notch, and rotatable from a retracted position where a retention key portion is substantially flush with the radially innermost surface, to an extended position where the retention key portion projects inwardly from said radially innermost surface and into a recess or pocket formed in a rotor wheel slot to prevent axial movement of the blade within the slot.Type: GrantFiled: May 26, 2011Date of Patent: May 20, 2014Assignee: General Electric CompanyInventors: Anthony Constantine Thermos, Govindarajan Rengarajan, William John Miller, Max Robert Farson, Scott Yiming Yu
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Publication number: 20140030098Abstract: An article of manufacture has a first component configured for use with a turbomachine. The first component is configured for attachment to a second component, and reduces the possibility of attachment with an undesired third component by modification of a. characteristic of the first component. This modification is matched by a complementary characteristic of the second component. The first component has a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table selected from the group consisting of TABLES 1-11. Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying by a number. X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height. The airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: ApplicationFiled: July 24, 2012Publication date: January 30, 2014Inventors: Michael James Dutka, John Duong, Ya-Tien Chiu, Alexander David Shrum, Kelvin Rono Aaron, Christopher Edward LaMaster, San-Dar Gau, Franco Monteleone, Paul Griffin Delvernois, Matthew John McKeever, Govindarajan Rengarajan, Jeremy Peter Latimer, Marc Edward Blohm, Eric Richard Bonini, Venkata Siva Prasad Chaluvadi, Jamie Dean Lumpkin, Thomas Robbins Tipton
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Publication number: 20130336777Abstract: An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table, the scalable table selected from the group of tables consisting of TABLES 1-11, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: ApplicationFiled: June 19, 2012Publication date: December 19, 2013Inventors: Matthew John McKeever, Gang Liu, Umesh Garg, Ryan Wesley Murphy, Edward Charles Schurr, Michael James Dutka, Govindarajan Rengarajan, Paul Griffin Delvernois, Ya-Tien Chiu, Roger Claude Beharrysingh, Marc Edward Blohm, SenthilKumar Narendran
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Publication number: 20130336798Abstract: An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table, the scalable table selected from the group of tables consisting of TABLES 1-11, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.Type: ApplicationFiled: June 19, 2012Publication date: December 19, 2013Inventors: Michael James Dutka, John Duong, Ya-Tien Chiu, Alexander David Shrum, Kelvin Rono Aaron, Christopher Edward LaMaster, San-Dar Gau, Franco Monteleone, Paul Griffin Delvernois, Matthew John McKeever, Govindarajan Rengarajan, Jeremy Peter Latimer, Marc Edward Blohm, Eric Richard Bonini, Venkata Siva Prasad Chaluvadi
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Publication number: 20120301308Abstract: A rotor blade and blade retention key assembly includes: a radially outer airfoil, a shank and a radially inner attachment dovetail. The attachment dovetail has a radially innermost surface formed with a notch at one axial end thereof, and a retention key is received in the notch, and rotatable from a retracted position where a retention key portion is substantially flush with the radially innermost surface, to an extended position where the retention key portion projects inwardly from said radially innermost surface and into a recess or pocket formed in a rotor wheel slot to prevent axial movement of the blade within the slot.Type: ApplicationFiled: May 26, 2011Publication date: November 29, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Anthony Constantine THERMOS, Govindarajan RENGARAJAN, William John MILLER, Max Robert FARSON, Scott Yiming YU
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Patent number: 8123488Abstract: A blade assembly including an outboard blade segment is provided. The outboard blade segment includes an outboard blade shell, first and second outboard bulkheads situated within the outboard blade shell, and an outer box supported by and aligned by the outboard bulkheads. The blade assembly also includes an inboard blade segment including an inboard blade shell, first and second inboard bulkheads situated within the inboard blade shell, and an inner box supported by and aligned by the inboard bulkheads. Further, the inner and the outer boxes are tapered to facilitate insertion of the inner box into the outer box and coupling of the inner and outer boxes.Type: GrantFiled: September 17, 2007Date of Patent: February 28, 2012Assignee: General Electric CompanyInventors: Peter Michael Finnigan, Christophe Lanaud, Govindarajan Rengarajan, Gang Qian
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Patent number: 7575417Abstract: A fan blade including a plurality of fiber composite layers and at least one high elongation fiber composite strip joining one of the fiber composite layers at a joint. A method of making a fan blade includes joining a plurality of fiber composite layers and joining at least one high elongation fiber composite strip to one of the plurality of fiber composite layers. An end of the high elongation fiber composite strip meets an end of the fiber composite layer at a joint.Type: GrantFiled: September 5, 2003Date of Patent: August 18, 2009Assignee: General Electric CompanyInventors: Scott Roger Finn, Govindarajan Rengarajan, David William Crall, Ian Francis Prentice
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Publication number: 20090136355Abstract: A blade assembly including an outboard blade segment is provided. The outboard blade segment includes an outboard blade shell, first and second outboard bulkheads situated within the outboard blade shell, and an outer box supported by and aligned by the outboard bulkheads. The blade assembly also includes an inboard blade segment including an inboard blade shell, first and second inboard bulkheads situated within the inboard blade shell, and an inner box supported by and aligned by the inboard bulkheads. Further, the inner and the outer boxes are tapered to facilitate insertion of the inner box into the outer box and coupling of the inner and outer boxes.Type: ApplicationFiled: September 17, 2007Publication date: May 28, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Peter Michael Finnigan, Christophe Lanaud, Govindarajan Rengarajan, Gang Qian
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Publication number: 20050053466Abstract: A fan blade including a plurality of fiber composite layers and at least one high elongation fiber composite strip joining one of the fiber composite layers at a joint. A method of making a fan blade includes joining a plurality of fiber composite layers and joining at least one high elongation fiber composite strip to one of the plurality of fiber composite layers. An end of the high elongation fiber composite strip meets an end of the fiber composite layer at a joint.Type: ApplicationFiled: September 5, 2003Publication date: March 10, 2005Inventors: Scott Finn, Govindarajan Rengarajan, David Crall, Ian Prentice
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Patent number: 6526550Abstract: A system and method for analyzing a baseline geometry and, optionally, a modified geometry. The method can include generating a numerical representation of a baseline geometry having baseline elements identified with first identifiers or element identifiers, and then assigning second identifiers or analyzer identifiers to the elements. A selected characteristic of the geometry, such as structural loading, is analyzed with reference to the second or analyzer identifiers. At least one of the elements of the geometry can then be altered in a manner that at least partially automatically adjusts the surrounding geometry, and the same first identifier or element identifier is associated with the altered element as was associated with the baseline, unaltered element. The altered geometry can be analyzed with respect to a third identifier (or another analyzer identifier) and a correspondence between the identifiers, the baseline element, and the altered element can be established and maintained.Type: GrantFiled: September 29, 2000Date of Patent: February 25, 2003Assignee: General Electric CompanyInventors: Bruce J. Badding, Christopher J. Farral, Linda J. Farral, George H. Ghanime, David M. Johnson, Govindarajan Rengarajan, Peter J. Röhl, Mullahalli V. Srinivas, Julia A. Wagener