Patents by Inventor Sreenivasa R. VOLETI
Sreenivasa R. VOLETI 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: 11817752Abstract: Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.Type: GrantFiled: July 2, 2021Date of Patent: November 14, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Tod Policandriotes, Parag M. Kshirsagar, Suman Dwari, Beata I. Wawrzyniak, Jagadeesh Kumar Tangudu, Sreenivasa R. Voleti
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Publication number: 20220320981Abstract: Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.Type: ApplicationFiled: July 2, 2021Publication date: October 6, 2022Inventors: Tod Policandriotes, Parag M. Kshirsagar, Suman Dwari, Beata I. Wawrzyniak, Jagadeesh Kumar Tangudu, Sreenivasa R. Voleti
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Patent number: 11292586Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first layer comprising a first material, a second layer radially outward of the first layer comprising a second material, and a third layer radially outward of the second layer comprising a third material, wherein the first layer is coupled to the second layer by at least one post and at least one support extending from a radially outer surface of the first layer.Type: GrantFiled: May 14, 2018Date of Patent: April 5, 2022Assignee: GOODRICH CORPORATIONInventors: Grum Ngatu, Sreenivasa R Voleti, William P May, Thomas P Filburn
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Publication number: 20210328235Abstract: A fuel cell includes a plurality of fuel cell layers stacked along a stacking axis. Each fuel cell layer includes a stacked arrangement of elements including a cathode, an anode, an electrolyte positioned between the anode and the cathode, a support layer positioned at the anode opposite the electrolyte, and a separator plate located at the support layer opposite the anode. The support layer is configured to contact the cathode of an adjacent fuel cell layer of the plurality of fuel cell layers. The separator plate defines a plurality of anode flow channels configured to deliver a fuel therethrough and a plurality of cathode flow channels configured to deliver an air flow therethrough.Type: ApplicationFiled: April 20, 2021Publication date: October 21, 2021Inventors: Tianli Zhu, Justin R. Hawkes, Paul Sheedy, Sreenivasa R. Voleti
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Publication number: 20210320301Abstract: Disclosed is a solid oxide fuel cell including an electrode-electrolyte assembly and an interconnect in communication with the electrode-electrolyte assembly, wherein the interconnect comprises a carbon matrix composite.Type: ApplicationFiled: April 8, 2021Publication date: October 14, 2021Inventors: Sreenivasa R. Voleti, Paul Sheedy, Justin R. Hawkes, Sean C. Emerson, Tianli Zhu
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Publication number: 20210320316Abstract: Disclosed is a solid oxide fuel cell including an electrode-electrolyte assembly and an interconnect in communication with the electrode-electrolyte assembly, wherein the interconnect has a porosity gradient.Type: ApplicationFiled: April 8, 2021Publication date: October 14, 2021Inventors: Sreenivasa R. Voleti, Paul Sheedy, Justin R. Hawkes, Sean C. Emerson, Tianli Zhu
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Patent number: 10731511Abstract: A blade containment system includes a plurality of circumferentially-arranged rotatable blades. Each blade has a blade compliance. An annular containment structure is arranged around the rotatable blades. The containment structure includes a liner that has a liner compliance. The blade compliance and the liner compliance are configured such that a strain induced on a respective one of the blades upon impact with the liner is less than a threshold critical strain beyond which the rotatable blades fracture.Type: GrantFiled: February 22, 2013Date of Patent: August 4, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Thomas J. Robertson, Jr., Sreenivasa R. Voleti, Mark W. Costa, Steven Clarkson
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Patent number: 10724397Abstract: A case for a gas turbine engine includes a plurality of distinct case sections in axial series. The case sections include, in axial order, a flange section, a forward shell section, a containment section, and an aft shell section. The forward shell section, the containment section, and the aft shell section are formed of a plurality of unidirectional roving fiber layers and a plurality of non-crimp fabric layers. The flange section is formed of a second plurality of non-crimp fabric layers. The plurality of unidirectional roving fiber layers do not have stitching or weaves. A ballistic liner is attached with the containment section, and a fiberglass layer encapsulates the plurality of unidirectional roving fiber layers, the plurality of non-crimp fabric layers, and the second plurality of non-crimp fabric layers.Type: GrantFiled: December 8, 2017Date of Patent: July 28, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Darin S. Lussier, Sreenivasa R. Voleti, Thomas J. Robertson, Jr., Christopher M. Quinn
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Publication number: 20190344880Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first layer comprising a first material, a second layer radially outward of the first layer comprising a second material, and a third layer radially outward of the second layer comprising a third material, wherein the first layer is coupled to the second layer by at least one post and at least one support extending from a radially outer surface of the first layer.Type: ApplicationFiled: May 14, 2018Publication date: November 14, 2019Applicant: GOODRICH CORPORATIONInventors: Grum Ngatu, Sreenivasa R. Voleti, William P. May, Thomas P. Filburn
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Patent number: 10443617Abstract: A fan containment case for a gas turbine engine includes a first inner layer and a second layer outside the first inner layer, where the second layer is made of a first material having a first fabric architecture. The fan containment case also includes a third layer outside of the second layer, where the third layer is made of a second material having a second fabric architecture, and at least one of the first material and the first fabric architecture of the second layer is different from the second material and the second architecture, respectively, of the third layer. A fourth outer layer is located outside of the third layer.Type: GrantFiled: March 21, 2016Date of Patent: October 15, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Peter Finnigan, Sreenivasa R. Voleti, Larry Foster, Darin S. Lussier, Gulperi Aksel
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Patent number: 10329925Abstract: A turbine engine component (100) comprises a fiber structure (125, 126) forming at least a portion of an airfoil (102). A matrix (128) embeds the fiber structure. A carbon nanotube filler (130) is in the matrix.Type: GrantFiled: June 26, 2014Date of Patent: June 25, 2019Assignee: United Technologies CorporationInventors: Sreenivasa R. Voleti, Christopher M. Quinn
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Patent number: 10287918Abstract: An attachment structure for a case includes a V-groove defined by first and second arms extending circumferentially around the case and meeting at a lower portion. At least a portion of the attachment structure is a three-dimensionally woven composite.Type: GrantFiled: February 5, 2014Date of Patent: May 14, 2019Assignee: United Technologies CorporationInventors: Christoper M. Quinn, Sreenivasa R. Voleti
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Patent number: 10046539Abstract: A composite article includes a laminate structure of at least first and second fiber layers. Each of the layers includes a network of primary reinforcement fibers disposed in a matrix. The layers are bonded to each other along an interface of the matrices. The matrices include a concentration of secondary reinforcement particles locally at the interface to strengthen the interface.Type: GrantFiled: July 14, 2015Date of Patent: August 14, 2018Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Sreenivasa R. Voleti, Christopher M. Quinn
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Publication number: 20180100408Abstract: A case for a gas turbine engine includes a plurality of distinct case sections in axial series. The case sections include, in axial order, a flange section, a forward shell section, a containment section, and an aft shell section. The forward shell section, the containment section, and the aft shell section are formed of a plurality of unidirectional roving fiber layers and a plurality of non-crimp fabric layers. The flange section is formed of a second plurality of non-crimp fabric layers. The plurality of unidirectional roving fiber layers do not have stitching or weaves. A ballistic liner is attached with the containment section, and a fiberglass layer encapsulates the plurality of unidirectional roving fiber layers, the plurality of non-crimp fabric layers, and the second plurality of non-crimp fabric layers.Type: ApplicationFiled: December 8, 2017Publication date: April 12, 2018Inventors: Darin S. Lussier, Sreenivasa R. Voleti, Thomas J. Robertson, JR., Christopher M. Quinn
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Patent number: 9840936Abstract: A case for a gas turbine engine includes a containment section with a plurality of unidirectional roving fiber layers and a plurality of non-crimp fabric layers. A method of manufacturing the case includes winding the plurality of unidirectional roving fiber layers around the plurality of non-crimp fabric layers.Type: GrantFiled: February 16, 2012Date of Patent: December 12, 2017Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Darin S. Lussier, Sreenivasa R. Voleti, Thomas J. Robertson, Jr., Christopher M. Quinn
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Publication number: 20160281738Abstract: A fan containment case for a gas turbine engine includes a first inner layer and a second layer outside the first inner layer, where the second layer is made of a first material having a first fabric architecture. The fan containment case also includes a third layer outside of the second layer, where the third layer is made of a second material having a second fabric architecture, and at least one of the first material and the first fabric architecture of the second layer is different from the second material and the second architecture, respectively, of the third layer. A fourth outer layer is located outside of the third layer.Type: ApplicationFiled: March 21, 2016Publication date: September 29, 2016Inventors: Peter Finnigan, Sreenivasa R. Voleti, Larry Foster, Darin S. Lussier, Gulperi Aksel
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Publication number: 20160130952Abstract: A turbine engine component (100) comprises a fiber structure (125, 126) forming at least a portion of an airfoil (102). A matrix (128) embeds the fiber structure. A carbon nanotube filler (130) is in the matrix.Type: ApplicationFiled: June 26, 2014Publication date: May 12, 2016Applicant: United Technologies CorporationInventors: Sreenivasa R. Voleti, Christopher M. Quinn
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Publication number: 20160047275Abstract: An attachment structure for a case includes a V-groove defined by first and second arms extending circumferentially around the case and meeting at a lower portion. At least a portion of the attachment structure is a three-dimensionally woven composite.Type: ApplicationFiled: February 5, 2014Publication date: February 18, 2016Inventors: Christoper M. Quinn, Sreenivasa R. Voleti
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Publication number: 20160032776Abstract: A composite assembly comprises a first composite wall, a second composite wall spaced radially inward from the first outer wall, and a composite reinforcement ring attached to an outer surface of the second composite wall. The composite reinforcement ring includes at least one sidewall having an accessory mounting port formed therethrough.Type: ApplicationFiled: March 12, 2014Publication date: February 4, 2016Inventors: Sreenivasa R. Voleti, Thomas J. Robertson, Jr., Darin S. Lussier
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Publication number: 20160031182Abstract: According to various embodiments, a carbon fiber structure is presented. The carbon fiber structure may address loads presented to an engine component in various directions. For instance, non-planar surfaces of a composite comprising a structure disclosed herein may achieve enhanced stiffness and/or strength. Thus, delamination of elements comprising a structure disclosed herein may be reduced. A three dimensional weave of carbon fiber elements through-thickness may provide enhanced strength to the composite material.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: CHRISTOPHER M. QUINN, SREENIVASA R. VOLETI