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Patent Agency Ranking
公开(公告)号：US20160342160A1
公开(公告)日：2016-11-24
申请号：US15108711
申请日：2014-12-09
Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.
Inventor： Michael Shepshelovich , Danny Abramov
Abstract: Methods are provided for operating an air vehicle, the air vehicle including fixed wings configured to provide mild stall characteristics including a post-stall regime, and a propulsion system capable of generating a controllable thrust, the thrust being variable at least between an idle thrust and a maximum thrust. During a landing maneuver, the air vehicle is caused to attain an angle of attack corresponding to said post-stall regime, and during the landing maneuver, there is concurrently generated a thrust level of said thrust greater than said idle thrust to provide a thrust vector having a thrust lift force component at landing. Corresponding control systems are also provided, and air vehicles including such control systems are also provided.
Abstract translation: 提供了用于操作空中飞行器的方法，所述空中飞行器包括被配置为提供包括后停止状态的温和失速特性的固定翼和能够产生可控推力的推进系统，所述推力至少在空转推力和 最大推力。 在着陆操作期间，使空中飞行器达到对应于所述后失速状态的攻角，并且在着陆操作期间，同时产生所述推力的推力水平大于所述空转推力以提供推力矢量 在着陆时具有推力提升力分量。 还提供了相应的控制系统，还提供了包括这种控制系统的机动车辆。
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公开(公告)号：US20160347451A1
公开(公告)日：2016-12-01
申请号：US15113368
申请日：2015-01-27
Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.
Inventor： Michael Shepshelovich , Danny Abramov , Yonatan Klein
CPC classification number: B64C39/024 , B64C3/14 , B64C13/16 , B64C15/12 , B64C29/00 , B64C2201/084 , B64C2201/104 , B64D43/02 , Y02T50/12
Abstract: Methods are provided for operating an air vehicle having fixed wings. Such methods include the step of providing an operating map of angle of attack associated with the fixed wings with Reynolds number, including conditions of separated flow over the fixed wings and conditions of attached flow over the fixed wings. Such methods also include the step of using the operating map for guidance, causing the air vehicle to operate at least within a low Reynolds numbers range corresponding to the operating map, such as to avoid or minimize risk of causing the air vehicle to operate at conditions of separated flow over the fixed wings.
Abstract translation: 提供了用于操作具有固定翼的机动车辆的方法。 这样的方法包括提供与固定翼相关的迎角与雷诺数相关的操作图的步骤，包括在固定翼上分离的流动的条件以及固定翼上附着流的条件。 这种方法还包括使用操作图来进行引导的步骤，使得空中飞行器至少在对应于操作图的低雷诺数范围内操作，以避免或最小化导致飞行器在条件下操作的风险 分离流过固定翼。
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公开(公告)号：US10423168B2
公开(公告)日：2019-09-24
申请号：US15108711
申请日：2014-12-09
Applicant: Israel Aerospace Industries Ltd.
Inventor： Michael Shepshelovich , Danny Abramov
Abstract: Methods are provided for operating an air vehicle, the air vehicle including fixed wings configured to provide mild stall characteristics including a post-stall regime, and a propulsion system capable of generating a controllable thrust, the thrust being variable at least between an idle thrust and a maximum thrust. During a landing maneuver, the air vehicle is caused to attain an angle of attack corresponding to said post-stall regime, and during the landing maneuver, there is concurrently generated a thrust level of said thrust greater than said idle thrust to provide a thrust vector having a thrust lift force component at landing. Corresponding control systems are also provided, and air vehicles including such control systems are also provided.
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公开(公告)号：US10279907B2
公开(公告)日：2019-05-07
申请号：US15113368
申请日：2015-01-27
Applicant: Israel Aerospace Industries Ltd.
Inventor： Michael Shepshelovich , Danny Abramov , Yonatan Klein
Abstract: Methods are provided for operating an air vehicle having fixed wings. Such methods include the step of providing an operating map of angle of attack associated with the fixed wings with Reynolds number, including conditions of separated flow over the fixed wings and conditions of attached flow over the fixed wings. Such methods also include the step of using the operating map for guidance, causing the air vehicle to operate at least within a low Reynolds numbers range corresponding to the operating map, such as to avoid or minimize risk of causing the air vehicle to operate at conditions of separated flow over the fixed wings.
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公开(公告)号：US10196129B2
公开(公告)日：2019-02-05
申请号：US14896828
申请日：2014-06-08
Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.
Inventor： Michael Shepshelovich , Danny Abramov
Abstract: Two element aerofoils are provided, having an aerofoil chord, a primary element having a first leading edge and a first trailing edge, a secondary element having a second leading edge and a second trailing edge, a gap between the primary element and the secondary element, and an axial overlap between the first trailing edge and the second leading edge. The secondary element is deflectable with respect to the primary element about a fixed hinge point by a flap deflection angle. The secondary element is configured to operate in airbrake mode when deflected by a respective the flap deflection angle corresponding to a design airbrake deflection angle wherein to generate an airbrake drag. In at least some examples, the axial overlap is numerically greater than −0.5% of the aerofoil chord, at least for the design airbrake deflection angle. Also disclosed are methods for operating air vehicles, and methods for designing two-element aerofoils.
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