Patents by Inventor William Donat
William Donat 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: 11840933Abstract: A foreign object debris (FOD) detection system for a gas turbine engine comprises a light detection and ranging (LiDAR) sensor assembly. The LiDAR sensor assembly is configured to scan a pre-determined volume within an inlet of the gas turbine engine. The inlet may be defined by a nacelle of the gas turbine engine. The LiDAR sensor assembly may comprise a single transceiver, a transmitter and a receiver, a plurality of transmitters and a receiver, or a plurality of receivers and a transmitter.Type: GrantFiled: December 13, 2019Date of Patent: December 12, 2023Assignee: RTX CORPORATIONInventors: Alek Gavrilovski, William Donat
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Publication number: 20210180466Abstract: A foreign object debris (FOD) detection system for a gas turbine engine comprises a light detection and ranging (LiDAR) sensor assembly. The LiDAR sensor assembly is configured to scan a pre-determined volume within an inlet of the gas turbine engine. The inlet may be defined by a nacelle of the gas turbine engine. The LiDAR sensor assembly may comprise a single transceiver, a transmitter and a receiver, a plurality of transmitters and a receiver, or a plurality of receivers and a transmitter.Type: ApplicationFiled: December 13, 2019Publication date: June 17, 2021Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Alek Gavrilovski, William Donat
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Patent number: 10379003Abstract: A fuel actuation system may comprise a servo valve (SV) including a torque motor and at least one screen, a metering valve (MV) fluidly connected to the SV, and an electronic engine control (EEC) operatively connected to the SV. The EEC may be configured and disposed to determine a travel time of the MV, a travel distance of the MV, a pressure of a fuel, and/or a temperature of the fuel, generate at least one of a travel time history, a travel distance history, a fuel temperature history, and a fuel pressure history, and determine a level of degradation of the fuel actuation system based on the at least one of the travel time history, the travel distance history, the fuel temperature history, or the fuel pressure history.Type: GrantFiled: April 30, 2018Date of Patent: August 13, 2019Assignee: United Technologies CorporationInventors: Angelo Martucci, William Donat, Amy R Grace, Thomas A Bush, Eric Nelson Hettler, Kevin Patrick McCormick
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Patent number: 10241007Abstract: A system and method for the calculation of a fuel lacquer index using environmental monitoring is disclosed. The system and method may comprise: capturing a fuel temperature data; determining a fuel quality rating; calculating a volumetric fuel flow; calculating a fuel filter differential pressure; and calculating a fuel lacquer index. The fuel lacquer index may be calculated as a percentage value based upon the fuel temperature data, the fuel quality rating, the volumetric fuel flow, and the fuel filter differential pressure.Type: GrantFiled: February 8, 2016Date of Patent: March 26, 2019Assignee: United Technologies CorporationInventors: Angelo Martucci, William Donat, Amy Grace, Eric Hettler, Kevin McCormick, Kevin Gibbons, Haralambos Cordatos, Christopher Mazella
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Publication number: 20180246012Abstract: A fuel actuation system may comprise a servo valve (SV) including a torque motor and at least one screen, a metering valve (MV) fluidly connected to the SV, and an electronic engine control (EEC) operatively connected to the SV. The EEC may be configured and disposed to determine a travel time of the MV, a travel distance of the MV, a pressure of a fuel, and/or a temperature of the fuel, generate at least one of a travel time history, a travel distance history, a fuel temperature history, and a fuel pressure history, and determine a level of degradation of the fuel actuation system based on the at least one of the travel time history, the travel distance history, the fuel temperature history, or the fuel pressure history.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Applicant: United Technologies CorporationInventors: Angelo Martucci, William Donat, Amy R. Grace, Thomas A. Bush, Eric Nelson Hettler, Kevin Patrick McCormick
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Patent number: 9983096Abstract: Systems and methods for monitoring fuel actuation system health are described herein. A method for monitoring fuel actuation system health may comprise: moving a metering valve from a first position to a second position; detecting a first travel distance of the metering valve; storing the first travel distance of the metering valve to memory to generate a first travel distance history; and determining a level of degradation of the fuel actuation system based on at least the first travel distance history.Type: GrantFiled: February 5, 2016Date of Patent: May 29, 2018Assignee: United Technologies CorporationInventors: Angelo Martucci, William Donat, Amy R. Grace, Thomas A. Bush, Eric Nelson Hettler, Kevin Patrick McCormick
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Publication number: 20170227424Abstract: Systems and methods for monitoring fuel actuation system health are described herein. A method for monitoring fuel actuation system health may comprise: moving a metering valve from a first position to a second position; detecting a first travel distance of the metering valve; storing the first travel distance of the metering valve to memory to generate a first travel distance history; and determining a level of degradation of the fuel actuation system based on at least the first travel distance history.Type: ApplicationFiled: February 5, 2016Publication date: August 10, 2017Applicant: United Technologies CorporationInventors: Angelo Martucci, William Donat, Amy R. Grace, Thomas A. Bush, Eric Nelson Hettler, Kevin Patrick McCormick
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Publication number: 20170227425Abstract: A system and method for the calculation of a fuel lacquer index using environmental monitoring is disclosed. The system and method may comprise: capturing a fuel temperature data; determining a fuel quality rating; calculating a volumetric fuel flow; calculating a fuel filter differential pressure; and calculating a fuel lacquer index. The fuel lacquer index may be calculated as a percentage value based upon the fuel temperature data, the fuel quality rating, the volumetric fuel flow, and the fuel filter differential pressure.Type: ApplicationFiled: February 8, 2016Publication date: August 10, 2017Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Angelo Martucci, William Donat, Amy Grace, Eric Hettler, Kevin McCormick, Kevin Gibbons, Haralambos Cordatos, Christopher Mazella
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Patent number: 9010198Abstract: An example aircraft debris monitoring sensor assembly includes an aircraft conduit defining a hollow core passage extending axially from an inlet opening to an outlet opening. A sensor arrangement detects debris carried by a fluid within the hollow core passage.Type: GrantFiled: July 29, 2011Date of Patent: April 21, 2015Assignee: United Technologies CorporationInventors: Ravi Rajamani, Alexander I. Khibnik, William Donat, Rajendra K. Agrawal
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Patent number: 8862433Abstract: An example method of partitioning turbomachine faults includes using a modeling computer to model a system, to establish a modeled gas path parameter, and to establish a modeled subsystem parameter. The method then determines a gas path condition representing a difference between an actual gas path parameter and the modeled gas path parameter. The method also determines a subsystem condition representing a difference between an actual subsystem parameter and the modeled subsystem parameter. The method diagnoses a sensor failure based on the gas path condition and the subsystem condition.Type: GrantFiled: May 18, 2010Date of Patent: October 14, 2014Assignee: United Technologies CorporationInventors: Sampath K. Yerramalla, William Donat, Ravi Rajamani
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Patent number: 8459103Abstract: A method for operating a debris monitoring system comprises continuously sensing the passage of particulates through a gas turbine engine to produce a time-domain sensor signal. The time-domain sensor signal is Fourier transformed to produce a frequency domain sensor signal. The frequency domain sensor signal is partitioned into bins corresponding to particulate composition categories. At least one feature is identified within each bin, and is used to determine the amount of particulate flow in each particulate composition category.Type: GrantFiled: June 24, 2011Date of Patent: June 11, 2013Assignee: United Technologies CorporationInventors: Alexander I. Khibnik, Ravi Rajamani, Coy Bruce Wood, Rajendra K. Agrawal, William Donat
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Publication number: 20130025348Abstract: An example aircraft debris monitoring sensor assembly includes an aircraft conduit defining a hollow core passage extending axially from an inlet opening to an outlet opening. A sensor arrangement detects debris carried by a fluid within the hollow core passage.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Inventors: Ravi Rajamani, Alexander I. Khibnik, William Donat, Rajendra K. Agrawal
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Publication number: 20120324987Abstract: A method for operating a debris monitoring system comprises continuously sensing the passage of particulates through a gas turbine engine to produce a time-domain sensor signal. The time-domain sensor signal is Fourier transformed to produce a frequency domain sensor signal. The frequency domain sensor signal is partitioned into bins corresponding to particulate composition categories. At least one feature is identified within each bin, and is used to determine the amount of particulate flow in each particulate composition category.Type: ApplicationFiled: June 24, 2011Publication date: December 27, 2012Applicant: United Technologies CorporationInventors: Alexander I. Khibnik, Ravi Rajamani, Coy Bruce Wood, Rajendra K. Agrawal, William Donat
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Patent number: 8306791Abstract: A method for modeling the performance of a gas turbine engine is provided.Type: GrantFiled: December 21, 2009Date of Patent: November 6, 2012Assignee: United Technologies CorporationInventors: Sampath K. Yerramalla, Steven Wayne Butler, William Donat
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Publication number: 20110286831Abstract: An example method of partitioning turbomachine faults includes using a modeling computer to model a system, to establish a modeled gas path parameter, and to establish a modeled subsystem parameter. The method then determines a gas path condition representing a difference between an actual gas path parameter and the modeled gas path parameter. The method also determines a subsystem condition representing a difference between an actual subsystem parameter and the modeled subsystem parameter. The method diagnoses a sensor failure based on the gas path condition and the subsystem condition.Type: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Inventors: Sampath K. YERRAMALLA, William DONAT, Ravi RAJAMANI
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Publication number: 20110153295Abstract: A method for modeling the performance of a gas turbine engine is provided.Type: ApplicationFiled: December 21, 2009Publication date: June 23, 2011Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Sampath K. Yerramalla, Steven Wayne Butler, William Donat