Patents by Inventor Nathan Ottow
Nathan Ottow 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: 11561153Abstract: An instrumentation assembly configured to measure properties of an engine exhaust stream is disclosed in this paper. The instrumentation assembly may include an outer support ring that extends around a central axis, an inner support ring arranged radially inward of the outer support ring around the central axis, and a plurality of instrumentation rake assemblies. The plurality of instrumentation rake assemblies extends from the outer support ring to the inner support ring across an annular passageway defined between the outer support ring and the inner support ring configured to carry the engine exhaust stream.Type: GrantFiled: September 8, 2021Date of Patent: January 24, 2023Assignee: Rolls-Royce North American Technologies Inc.Inventors: Mark O'Leary, Nathan Ottow
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Publication number: 20220412842Abstract: An instrumentation assembly configured to measure properties of an engine exhaust stream is disclosed in this paper. The instrumentation assembly may include an outer support ring that extends around a central axis, an inner support ring arranged radially inward of the outer support ring around the central axis, and a plurality of instrumentation rake assemblies. The plurality of instrumentation rake assemblies extends from the outer support ring to the inner support ring across an annular passageway defined between the outer support ring and the inner support ring configured to carry the engine exhaust stream.Type: ApplicationFiled: September 8, 2021Publication date: December 29, 2022Inventors: Mark O'Leary, Nathan Ottow
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Patent number: 11105338Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: GrantFiled: September 23, 2019Date of Patent: August 31, 2021Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.Inventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nate Cooper, Mark Whitlock, Nathan Ottow
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Patent number: 11002284Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.Type: GrantFiled: June 6, 2019Date of Patent: May 11, 2021Assignee: Rolls-Royce CorporationInventors: Michael Nesteroff, Jonathan Acker, Nate Cooper, Nathan Ottow
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Publication number: 20210062824Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: ApplicationFiled: September 23, 2019Publication date: March 4, 2021Applicants: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.Inventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nate Cooper, Mark Whitlock, Nathan Ottow
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Patent number: 10935044Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.Type: GrantFiled: August 1, 2019Date of Patent: March 2, 2021Assignee: Rolls-Royce CorporationInventors: Nathan Ottow, Johnathan Acker, Nate Cooper, Mark Whitlock, Michael Nesteroff
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Publication number: 20190353180Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.Type: ApplicationFiled: August 1, 2019Publication date: November 21, 2019Applicant: Rolls-Royce CorporationInventors: Nathan Ottow, Johnathan Acker, Nate Cooper, Mark Whitlock, Michael Nesteroff
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Patent number: 10458429Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: GrantFiled: August 11, 2016Date of Patent: October 29, 2019Assignees: ROLLS-ROYCE CORPORATION, ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC.Inventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nate Cooper, Mark Whitlock, Nathan Ottow
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Publication number: 20190323514Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.Type: ApplicationFiled: June 6, 2019Publication date: October 24, 2019Applicant: Rolls-Royce CorporationInventors: Michael Nesteroff, Jonathan Acker, Nate Cooper, Nathan Ottow
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Patent number: 10408226Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.Type: GrantFiled: May 26, 2016Date of Patent: September 10, 2019Assignee: ROLLS-ROYCE CORPORATIONInventors: Nathan Ottow, Jonathan Acker, Nate Cooper, Mark Whitlock, Michael Nesteroff
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Patent number: 10352329Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.Type: GrantFiled: May 26, 2016Date of Patent: July 16, 2019Assignee: ROLLS-ROYCE CORPORATIONInventors: Michael Nesteroff, Jonathan Acker, Nate Cooper, Nathan Ottow
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Patent number: 10309409Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: GrantFiled: May 26, 2016Date of Patent: June 4, 2019Assignee: ROLLS-ROYCE CORPORATIONInventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nathan Ottow
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Patent number: 10309410Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a two-piece integral impeller shroud with a fixed inner member and a variable outer member. An actuator is coupled to an aft end of the variable outer member and imparts axially forward and aft motion on the aft end, causing deflection of the outer member.Type: GrantFiled: May 26, 2016Date of Patent: June 4, 2019Assignee: ROLLS-ROYCE CORPORATIONInventors: Nathan Ottow, Jonathan Acker, Nate Cooper
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Publication number: 20170343002Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a two-piece integral impeller shroud with a fixed inner member and a variable outer member. An actuator is coupled to an aft end of the variable outer member and imparts axially forward and aft motion on the aft end, causing deflection of the outer member.Type: ApplicationFiled: May 26, 2016Publication date: November 30, 2017Applicant: Rolls-Royce CorporationInventors: Nathan Ottow, Jonathan Acker, Nate Cooper
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Publication number: 20170342994Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.Type: ApplicationFiled: May 26, 2016Publication date: November 30, 2017Applicant: Rolls-Royce CorporationInventors: Michael Nesteroff, Jonathan Acker, Nate Cooper, Nathan Ottow
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Publication number: 20170343001Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: ApplicationFiled: May 26, 2016Publication date: November 30, 2017Applicant: Rolls-Royce CorporationInventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nathan Ottow
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Publication number: 20170342996Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.Type: ApplicationFiled: August 11, 2016Publication date: November 30, 2017Applicants: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.Inventors: Michael Nesteroff, Jonathan Acker, Jeffrey Crutchfield, Nate Cooper, Mark Whitlock, Nathan Ottow
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Publication number: 20170342995Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.Type: ApplicationFiled: May 26, 2016Publication date: November 30, 2017Applicant: Rolls-Royce CorporationInventors: Nathan Ottow, Jonathan Acker, Nate Cooper, Mark Whitlock, Michael Nesteroff