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公开(公告)号：US20180058985A1
公开(公告)日：2018-03-01
申请号：US15672075
申请日：2017-08-08
Applicant: Goodrich Corporation
Inventor： William E. Luce , Amir Fazeli
Abstract: A method for monitoring a shock strut may comprise measuring a first shock strut pressure, measuring a first shock strut temperature, measuring a second shock strut pressure, measuring a second shock strut temperature, measuring a shock strut stroke, and determining a servicing condition of the shock strut based upon the first shock strut pressure, the first shock strut temperature, the second shock strut pressure, the second shock strut temperature, and the shock strut stroke and taking into account at least one of an absorption of a gas with a fluid and desorption of the gas with the fluid.In various embodiments, the method may further comprises measuring a third shock strut pressure, measuring a third shock strut temperature, wherein the servicing condition is further based upon the third shock strut pressure and the third shock strut temperature.
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公开(公告)号：US09446859B2
公开(公告)日：2016-09-20
申请号：US14493052
申请日：2014-09-22
Applicant: GOODRICH CORPORATION
Inventor： Amir Fazeli , Adnan Cepic , Susanne Reber
CPC classification number: B64F5/00 , F16F9/43 , F16F9/46 , Y10T29/49718 , Y10T29/49776
Abstract: The present disclosure includes methods for servicing shock struts. Such shock struts may be “air over oil” type, having a gas portion and a liquid portion of a sealed fluid chamber. Methods in accordance with the disclosure include pressurizing the gas portion to a first pressure, then pressurizing the liquid portion until a final pressure is achieved in the gas portion.
Abstract translation: 本公开包括用于维护冲击支柱的方法。 这种冲击支柱可以是具有气体部分和密封流体室的液体部分的“空气过油”型。 根据本公开的方法包括将气体部分加压至第一压力，然后对液体部分加压直到在气体部分中达到最终压力。
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公开(公告)号：US11841292B2
公开(公告)日：2023-12-12
申请号：US18097225
申请日：2023-01-14
Applicant: GOODRICH CORPORATION
Inventor： Amir Fazeli , Adnan Cepic , Susanne M Reber
CPC classification number: G01M17/04 , B64C25/60 , B64F5/60 , F16F9/3292 , F16F2228/002 , F16F2228/004
Abstract: A method for monitoring a shock strut may comprise measuring a first shock strut pressure, measuring an ambient temperature, measuring a shock strut stroke, measuring a second shock strut pressure, and determining a servicing condition of the shock strut based upon the first shock strut pressure, the ambient temperature, the shock strut stroke, and the second shock strut pressure, wherein the servicing condition indicates whether it is desirable for the shock strut to be serviced with at least one of a liquid and a gas. The first shock strut pressure and the shock strut stroke may be measured before the takeoff event with a weight of an aircraft supported by the shock strut.
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公开(公告)号：US20230160781A1
公开(公告)日：2023-05-25
申请号：US18097225
申请日：2023-01-14
Applicant: GOODRICH CORPORATION
Inventor： Amir Fazeli , Adnan Cepic , Susanne M. Reber
CPC classification number: G01M17/04 , B64C25/60 , F16F9/3292 , B64F5/60 , F16F2228/004 , F16F2228/002
Abstract: A method for monitoring a shock strut may comprise measuring a first shock strut pressure, measuring an ambient temperature, measuring a shock strut stroke, measuring a second shock strut pressure, and determining a servicing condition of the shock strut based upon the first shock strut pressure, the ambient temperature, the shock strut stroke, and the second shock strut pressure, wherein the servicing condition indicates whether it is desirable for the shock strut to be serviced with at least one of a liquid and a gas. The first shock strut pressure and the shock strut stroke may be measured before the takeoff event with a weight of an aircraft supported by the shock strut.
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公开(公告)号：US11364997B2
公开(公告)日：2022-06-21
申请号：US17067265
申请日：2020-10-09
Applicant: GOODRICH CORPORATION
Inventor： Amir Fazeli , Adnan Cepic , Susanne M. Reber
Abstract: A method for monitoring a dual-stage, stroke activated, mixed fluid gas shock strut includes receiving, by a controller, primary chamber temperature and pressure sensor readings, secondary chamber pressure and temperature sensor readings, and a shock strut stroke sensor reading, calculating, by the controller, a compression factor, determining, by the controller, a plurality of compression factors for known oil volumes based on the primary chamber temperature sensor reading and/or the shock strut stroke sensor reading, and calculating, by the controller, an oil volume in a primary chamber of the shock strut, a number of moles of gas in the primary chamber of the shock strut, a volume of gas in a secondary chamber of the shock strut, and a number of moles of gas in the secondary chamber.
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Patent Agency Ranking
公开(公告)号：US20220185462A1
公开(公告)日：2022-06-16
申请号：US17124266
申请日：2020-12-16
Applicant: Goodrich Corporation
Inventor： Amir Fazeli , Susanne M. Reber
Abstract: A shock strut assembly for a landing gear may comprise a strut cylinder, a strut piston configured to telescope relative to the strut cylinder, and a locking system. The locking system may be configured to restrict rotation of the strut piston relative to the strut cylinder in response to compression of the shock strut assembly.
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公开(公告)号：US20200248774A1
公开(公告)日：2020-08-06
申请号：US16856601
申请日：2020-04-23
Applicant: Goodrich Corporation
Inventor： Amir Fazeli , Adnan Cepic , Susanne Reber
Abstract: A method for weight off wheel shock strut servicing includes deflating the shock strut, compressing the shock strut via a jack until the shock strut is in a compressed position, charging the shock strut with an oil until a pressure of the oil reduces a volume of a residual air located inside of the shock strut, lowering the jack until a shock strut piston reaches a pre-determined extension, and charging the shock strut with a gas until the gas comprises a pre-determined pressure.
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18.发明申请公开(公告)号：US20190176975A1
公开(公告)日：2019-06-13
申请号：US16281630
申请日：2019-02-21
Applicant: GOODRICH CORPORATION
Inventor： Amir Fazeli , Adnan Cepic , Susanne M. Reber
CPC classification number: B64C25/60 , B64F5/40 , B64F5/60 , F16F9/061 , F16F9/063 , F16F9/3292 , F16F2230/24
Abstract: A dual-stage, stroke activated, mixed fluid gas shock strut arrangement includes a dual-stage, stroke activated, mixed fluid gas shock strut (shock strut) and a monitoring system. The shock strut includes a strut cylinder, a strut piston, a primary chamber comprising an oil chamber and a primary gas chamber, and a secondary gas chamber. The monitoring system includes a first pressure/temperature sensor, a second pressure/temperature sensor, a stroke sensor, a recorder configured to receive a plurality of sensor readings from the first pressure/temperature sensor, the second pressure/temperature sensor, and/or the stroke sensor, a landing detector configured to detect a landing event based upon a stroke sensor reading received from the stroke sensor, and a health monitor configured to determine an oil volume in the primary chamber, wherein the health monitor calculates a compression factor to determine the oil volume.
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公开(公告)号：US10272993B2
公开(公告)日：2019-04-30
申请号：US15642117
申请日：2017-07-05
Applicant: Goodrich Corporation
Inventor： Amir Fazeli , Adnan Cepic , Susanne M. Reber
Abstract: A monitoring system for a dual-stage, stroke activated, mixed fluid gas shock strut may comprise a controller, and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory may have instructions stored thereon that, in response to execution by the controller, cause the controller to perform various operations. Said operations may include calculating, by the controller, a compression factor, determining, by the controller, a plurality of compression factors for known oil volumes based on at least one of the primary chamber temperature sensor reading and the shock strut stroke sensor reading, and calculating, by the controller, an oil volume in a primary chamber of the shock strut.
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公开(公告)号：US10269189B2
公开(公告)日：2019-04-23
申请号：US15642129
申请日：2017-07-05
Applicant: Goodrich Corporation
Inventor： Amir Fazeli , Adnan Cepic , Susanne M. Reber
Abstract: A monitoring system for a dual-stage, separated gas/fluid shock strut may comprise a controller and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory may have instructions stored thereon that, in response to execution by the controller, cause the controller to perform various operations. Said operations may include calculating, by the controller, a secondary chamber nominal pressure, determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, calculating, by the controller, a volume of gas in a primary chamber of the shock strut, calculating, by the controller, a secondary chamber inflation pressure, and calculating, by the controller, a volume of oil leaked into the primary chamber of the shock strut.
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