Patents by Inventor Marcia Boyle
Marcia Boyle 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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Publication number: 20240084709Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to illustrate a clearance design process and strategy with CCA-ACC optimization for exhaust gas temperature (EGT) and performance improvement. In some examples, an apparatus includes a case surrounding at least part of a turbine engine, the at least part of the turbine engine including a turbine or a compressor. The apparatus further includes a first source to obtain external air; a second source to obtain cooled cooling air; a heat exchanger to control temperature of cooled cooling air; and a case cooler to provide active clearance control air to the case to control deflection of the case, wherein the active clearance control air is a combination of the external air and the cooled cooling air, the case cooler coupled to the heat exchanger using a first valve, the first valve triggered by a first control signal.Type: ApplicationFiled: June 14, 2023Publication date: March 14, 2024Inventors: Taehong Kim, Marcia Boyle Johnson, Daniel E. Reisenauer
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Patent number: 11713689Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to illustrate a clearance design process and strategy with CCA-ACC optimization for exhaust gas temperature (EGT) and performance improvement. In some examples, an apparatus includes a case surrounding at least part of a turbine engine, the at least part of the turbine engine including a turbine or a compressor. The apparatus further includes a first source to obtain external air; a second source to obtain cooled cooling air; a heat exchanger to control temperature of cooled cooling air; and a case cooler to provide active clearance control air to the case to control deflection of the case, wherein the active clearance control air is a combination of the external air and the cooled cooling air, the case cooler coupled to the heat exchanger using a first valve, the first valve triggered by a first control signal.Type: GrantFiled: January 18, 2021Date of Patent: August 1, 2023Assignee: General Electric CompanyInventors: Taehong Kim, Marcia Boyle Johnson, Daniel E. Reisenauer
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Publication number: 20220228503Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to illustrate a clearance design process and strategy with CCA-ACC optimization for exhaust gas temperature (EGT) and performance improvement. In some examples, an apparatus includes a case surrounding at least part of a turbine engine, the at least part of the turbine engine including a turbine or a compressor. The apparatus further includes a first source to obtain external air; a second source to obtain cooled cooling air; a heat exchanger to control temperature of cooled cooling air; and a case cooler to provide active clearance control air to the case to control deflection of the case, wherein the active clearance control air is a combination of the external air and the cooled cooling air, the case cooler coupled to the heat exchanger using a first valve, the first valve triggered by a first control signal.Type: ApplicationFiled: January 18, 2021Publication date: July 21, 2022Inventors: Taehong Kim, Marcia Boyle Johnson, Daniel E. Reisenauer
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Patent number: 10087772Abstract: The turbomachine includes a rotatable member defining an axis of rotation and an inner annular casing extending circumferentially over at least a portion of the rotatable member. The inner annular casing includes a radially outer surface. The turbomachine further includes an outer annular casing extending over at least a portion of the inner annular casing. The inner annular casing and the outer annular casing define a plurality of cavities therebetween. The clearance control system includes a manifold system including a plurality of conduits extending circumferentially about the inner annular casing and disposed within the cavities. The clearance control system also includes an impingement system extending circumferentially about the inner annular casing and disposed within the cavities. The conduits are configured to channel a flow of cooling fluid to the impingement system which is configured to channel the cooling fluid to the radially outer surface of the inner annular casing.Type: GrantFiled: December 21, 2015Date of Patent: October 2, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Changjie Sun, Yu Xie Mukherjee, Bhaskar Nanda Mondal, Atanu Saha, Marcia Boyle Johnson, Wenfeng Lu
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Publication number: 20170175769Abstract: The turbomachine includes a rotatable member defining an axis of rotation and an inner annular casing extending circumferentially over at least a portion of the rotatable member. The inner annular casing includes a radially outer surface. The turbomachine further includes an outer annular casing extending over at least a portion of the inner annular casing. The inner annular casing and the outer annular casing define a plurality of cavities therebetween. The clearance control system includes a manifold system including a plurality of conduits extending circumferentially about the inner annular casing and disposed within the cavities. The clearance control system also includes an impingement system extending circumferentially about the inner annular casing and disposed within the cavities. The conduits are configured to channel a flow of cooling fluid to the impingement system which is configured to channel the cooling fluid to the radially outer surface of the inner annular casing.Type: ApplicationFiled: December 21, 2015Publication date: June 22, 2017Inventors: Changjie Sun, Yu Xie Mukherjee, Bhaskar Nanda Mondal, Atanu Saha, Marcia Boyle Johnson, Wenfeng Lu
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Patent number: 8662834Abstract: A method for reducing tip rub loads in a rotor blade is described having the steps of selecting a location of contact between the rotor blade and a static structure; selecting a location on the blade for incorporating a tip-cutter; selecting a cutter-profile for the tip-cutter; and incorporating the tip-cutter on the selected location on the blade such that tip-cutter is capable of removing a portion of the static structure during a tip rub such that tip rub loads are facilitated to be reduced.Type: GrantFiled: June 30, 2009Date of Patent: March 4, 2014Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, David W. Crall, Daniel E. Mollmann, Donald Lee Gardner, Marcia Boyle Johnson, Howard P. Weaver, Max Robert Farson
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Patent number: 8657570Abstract: An airfoil for use in a rotor assembly is disclosed, the airfoil having a tip-cutter located on a sidewall near a tip portion, wherein the tip-cutter is capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-grinder located on the tip portion, wherein the tip-grinder capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-rake that facilitates reducing loading induced to said airfoil during tip rubs.Type: GrantFiled: June 30, 2009Date of Patent: February 25, 2014Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, David W. Crall, Daniel E. Mollmann, Donald Lee Gardner, Marcia Boyle Johnson, Howard P. Weaver, Max Robert Farson
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Publication number: 20100329875Abstract: An airfoil for use in a rotor assembly is disclosed, the airfoil having a tip-cutter located on a sidewall near a tip portion, wherein the tip-cutter is capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-grinder located on the tip portion, wherein the tip-grinder capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-rake that facilitates reducing loading induced to said airfoil during tip rubs.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: Nicholas Joseph Kray, David W. Crall, Daniel E. Mollmann, Donald Lee Gardner, Marcia Boyle Johnson, Haward P. Weaver, Max Robert Farson
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Publication number: 20100329863Abstract: A method for reducing tip rub loads in a rotor blade is described having the steps of selecting a location of contact between the rotor blade and a static structure; selecting a location on the blade for incorporating a tip-cutter; selecting a cutter-profile for the tip-cutter; and incorporating the tip-cutter on the selected location on the blade such that tip-cutter is capable of removing a portion of the static structure during a tip rub such that tip rub loads are facilitated to be reduced.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: Nicholas Joseph Kray, David W. Crall, Daniel E. Mollmann, Donald Lee Gardner, Marcia Boyle Johnson, Howard P. Weaver, Max Robert Farson
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Patent number: 7367776Abstract: A turbine engine stator assembly in juxtaposition across a radial gap with a rotary blading assembly includes a radially movable shroud and a gap control member made of at least one shape memory alloy (SMA). The SMA is selected and preconditioned to deform pre-selected amounts to change the radial length of the gap during engine operation responsive to temperature about the SMA. A fluid flow means delivers fluid to the SMA at pre-selected temperatures during engine operation.Type: GrantFiled: January 26, 2005Date of Patent: May 6, 2008Assignee: General Electric CompanyInventors: Robert Joseph Albers, Rafael Ruiz, Marcia Boyle, Christopher Charles Glynn
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Patent number: 7269955Abstract: A method of operating a gas turbine engine is provided. The gas turbine engine includes at least one engine casing and at least one rotor assembly. The method includes directing airflow through a supply pipe and into a heat exchanger, lowering the temperature of the airflow in the heat exchanger, and directing the cooled airflow into the engine casing to cool the casing.Type: GrantFiled: August 25, 2004Date of Patent: September 18, 2007Assignee: General Electric CompanyInventors: Robert Joseph Albers, Rafael Ruiz, Marcia Boyle, Christopher Charles Glynn
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Publication number: 20060165518Abstract: A turbine engine stator assembly in juxtaposition across a radial gap with a rotary blading assembly includes a radially movable shroud and a gap control member made of at least one shape memory alloy (SMA). The SMA is selected and preconditioned to deform pre-selected amounts to change the radial length of the gap during engine operation responsive to temperature about the SMA. A fluid flow means delivers fluid to the SMA at pre-selected temperatures during engine operation.Type: ApplicationFiled: January 26, 2005Publication date: July 27, 2006Inventors: Robert Albers, Rafael Ruiz, Marcia Boyle, Christopher Glynn
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Publication number: 20060042266Abstract: A method of operating a gas turbine engine is provided. The gas turbine engine includes at least one engine casing and at least one rotor assembly. The method includes directing airflow through a supply pipe and into a heat exchanger, lowering the temperature of the airflow in the heat exchanger, and directing the cooled airflow into the engine casing to cool the casing.Type: ApplicationFiled: August 25, 2004Publication date: March 2, 2006Inventors: Robert Albers, Rafael Ruiz, Marcia Boyle, Christopher Glynn
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Publication number: 20040219011Abstract: A system and method for achieving clearance control for a high-pressure turbine by means of casing mechanical deflection. An active clearance control system is provided to act on a blade that rotates near a shroud. The shroud is attached to a case at a shroud supporting location, or shroud hanger. A clearance is required between a tip of the blade and the shroud. The blade tip and shroud are surrounded with an elastic case. This case can deflect radially in response not only to thermal expansion, but also to a difference in pressures acting on the inner and outer diameters of the case.Type: ApplicationFiled: May 2, 2003Publication date: November 4, 2004Applicant: General Electric CompanyInventors: Robert J. Albers, Rafael Ruiz, Marcia Boyle