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Patent Agency Ranking
公开(公告)号：US11211184B2
公开(公告)日：2021-12-28
申请号：US16255444
申请日：2019-01-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Michael Youssef , Olivier Basse , Brant Duke
Abstract: An aircraft engine comprises an engine case, the engine case flange(s). A harness of wires extends in proximity to the engine case. The harness of wires includes two or more metal shield sleeves externally covering a bundle of wires in a longitudinal direction, the metal shield sleeves being at least partially electrically insulated from one another. A conductive contact between the at least one flange and at least one of the metal shield sleeve.
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公开(公告)号：US11002238B2
公开(公告)日：2021-05-11
申请号：US16274384
申请日：2019-02-13
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Michael Youssef , Alexandre Charest , Giancarlo Zingaro , Jasraj Chahal , Carmine Lisio , Darragh McGrath
IPC: F02N11/08
Abstract: Methods and systems for starting an aircraft propulsion engine are described herein. Operation of the engine is controlled by an engine controller having a first channel and a second channel. An engine start request is received on the second channel while the first channel is inactive. It is determined which one of the first channel and the second channel was used to conduct a last successful engine start. Responsive to determining that the last successful engine start was conducted on the second channel, a predetermined time period is waited to elapse and for the first channel to reinitialize before commanding, via the first channel, an engine start based on the engine start request.
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公开(公告)号：US20150036781A1
公开(公告)日：2015-02-05
申请号：US13957526
申请日：2013-08-02
Applicant: Pratt & Whitney Canada Corp.
Inventor： Michael Youssef
IPC: G07C3/08
CPC classification number: G07C3/08 , F02C7/266 , F05D2260/80
Abstract: Methods and associated devices useful for the health monitoring of igniters of gas turbine engines are disclosed. Exemplary embodiments disclosed include the use of an accumulated spark count to an igniter to obtain an indication of wear on the igniter and/or the remaining life of the igniter. An exemplary method disclosed includes: receiving one or more signals indicative of a commanded spark count to the igniter for one or more ignition events; processing the one or more signals indicative of the commanded spark count to the igniter, determining a total accumulated commanded spark count to the igniter; and generating one or more signals indicative of at least one of an estimated wear on the igniter or an estimated remaining life of the igniter based on the total accumulated commanded spark count to the igniter.
Abstract translation: 公开了用于燃气轮机发动机点火器健康监测的方法和相关设备。 所公开的示例性实施例包括使用累积火花计数到点火器以获得点火器上的磨损指示和/或点火器的剩余寿命。 公开的示例性方法包括：向点火器接收指示火花计数的一个或多个信号用于一个或多个点火事件; 将指示火花计数的一个或多个信号处理到点火器，确定对该点火器的总积累指令火花计数; 以及基于对所述点火器的总累积命令火花计数，生成指示点火器上的估计磨损或所述点火器的估计剩余寿命中的至少一个的一个或多个信号。
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公开(公告)号：US09135755B2
公开(公告)日：2015-09-15
申请号：US13957526
申请日：2013-08-02
Applicant: Pratt & Whitney Canada Corp.
Inventor： Michael Youssef
CPC classification number: G07C3/08 , F02C7/266 , F05D2260/80
Abstract: Methods and associated devices useful for the health monitoring of igniters of gas turbine engines are disclosed. Exemplary embodiments disclosed include the use of an accumulated spark count to an igniter to obtain an indication of wear on the igniter and/or the remaining life of the igniter. An exemplary method disclosed includes: receiving one or more signals indicative of a commanded spark count to the igniter for one or more ignition events; processing the one or more signals indicative of the commanded spark count to the igniter, determining a total accumulated commanded spark count to the igniter; and generating one or more signals indicative of at least one of an estimated wear on the igniter or an estimated remaining life of the igniter based on the total accumulated commanded spark count to the igniter.
Abstract translation: 公开了用于燃气轮机发动机点火器健康监测的方法和相关设备。 所公开的示例性实施例包括使用累积火花计数到点火器以获得点火器上的磨损指示和/或点火器的剩余寿命。 公开的示例性方法包括：向点火器接收指示火花计数的一个或多个信号用于一个或多个点火事件; 将指示火花计数的一个或多个信号处理到点火器，确定对该点火器的总积累指令火花计数; 以及基于对所述点火器的总累积命令火花计数，生成指示点火器上的估计磨损或所述点火器的估计剩余寿命中的至少一个的一个或多个信号。
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公开(公告)号：US10197488B2
公开(公告)日：2019-02-05
申请号：US15623460
申请日：2017-06-15
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Michael Youssef
Abstract: There is described herein methods and systems for detecting electrically-conductive particles (chips) in fluid of an aircraft engine. The method comprises applying a plurality of excitation currents Ii across a magnetic chip detector mounted to a fluid system of the aircraft engine and measuring a corresponding plurality of resistance values Ri, where i is an integer that varies from 1 to N, and where N corresponds to a number of different excitation currents applied across the magnetic chip detector. The method further comprises determining a chip size indication Y from the plurality of resistance values Ri, and detecting a chip in the fluid when the chip size indication Y exceeds a threshold Ythres.
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