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1. 发明申请

US20220243608A1 SYSTEM AND METHOD FOR DETECTING FAILURE OF A PROPELLER FEEDBACK DEVICE 有权
公开(公告)号：US20220243608A1
公开(公告)日：2022-08-04
申请号：US17163881
申请日：2021-02-01
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Jagoda KRZYWON
IPC分类号： F01D21/00 , F01D7/02 , F01D21/14 , B64C11/38 , B64C11/40
摘要： A sensor signal produced by a sensor as a feedback device rotates with a propeller about an axis and moves along the axis with adjustment of a blade angle of the propeller is received, the sensor signal indicative of a rotational speed and of the blade angle of the propeller. From the sensor signal, it is determined whether the rotational speed is within a predetermined range of a reference speed and an expected change in the blade angle has occurred in response to a command to adjust the blade angle to maintain the rotational speed at the reference speed. In response to determining that the rotational speed is within the predetermined range of the reference speed and the expected change in the blade angle has failed to occur in response to the command, inoperable movement of the feedback device along the axis is determined and an alert is output.

2. 发明申请

US20200024982A1 BOUNDARY LAYER INGESTING FAN 审中-公开
公开(公告)号：US20200024982A1
公开(公告)日：2020-01-23
申请号：US16038320
申请日：2018-07-18
申请人： United Technologies Corporation
发明人： Steven H. Zysman
IPC分类号： F01D7/02 , F01D1/30 , B64C11/06 , F02K3/06
摘要： A fan assembly for gas turbine engine according to an exemplary embodiment of this disclosure includes, among other possible things, a plurality of fan blades rotatable about a fan rotation axis, each of the plurality of fan blades movable about an axis transverse to the fan rotation axis, a fan nacelle partially surrounding the plurality of fan blades, and a pitch mechanism coupled to the plurality of blades that changes an angle of pitch for each of the plurality of blades corresponding to a circumferential position of the fan blade about the fan rotation axis.

3. 发明申请

US20200024981A1 VARIABLE PITCH FAN ACTUATOR 审中-公开
公开(公告)号：US20200024981A1
公开(公告)日：2020-01-23
申请号：US16188373
申请日：2018-11-13
申请人： General Electric Company
发明人： Daniel Alan Niergarth , Darek Tomasz Zatorski , Brandon Wayne Miller
IPC分类号： F01D7/00 , B64C11/32 , F02C7/32 , F01D17/12 , F01D7/02 , F02C9/58 , F02C3/10 , F02C7/04 , F02K3/06
摘要： A gas turbine engine including a core having in serial flow order a compressor, a combustor, and a turbine—the compressor, combustor, and turbine together defining a core air flowpath. The gas turbine engine additionally includes a fan section mechanically coupled to the core, the fan section including a plurality of fan blades, and each of the plurality fan blades defining a pitch axis. An actuation device is operable with the plurality fan blades for rotating the plurality fan blades about their respective pitch axes, the actuation device including an actuator located outward of the core air flowpath to, e.g., simplify the gas turbine engine.

4. 发明申请

US20190284943A1 MECHANICAL AIRFOIL MORPHING WITH INTERNAL MECHANICAL STRUCTURES 审中-公开
公开(公告)号：US20190284943A1
公开(公告)日：2019-09-19
申请号：US15923545
申请日：2018-03-16
申请人： General Electric Company
发明人： Nicholas Joseph Kray , Paul Gerard Marsland , Wayne Allen Spence , Abhijeet Yadav , Samar Jyoti Kalita , Nitesh Jain , Narendra D. Joshi
IPC分类号： F01D7/02 , F01D5/14
摘要： An airfoil for a turbomachinery rotor includes: a body having a first density, the body defining a pressure side and a suction side, the pressure side and suction side intersecting at a leading edge and a trailing edge; and a mass positioned within the body and having a second density, wherein the second density is greater than the first density, wherein the mass is offset from a center of gravity of the body in at least one axis.

5. 发明授权

US10036262B2 Turbomachine impellor rotor with device for feathering the blades of the impellor 有权
公开(公告)号：US10036262B2
公开(公告)日：2018-07-31
申请号：US14911172
申请日：2014-08-14
申请人： SNECMA
发明人： Sébastien Emile Philippe Tajan , Adrien Jacques Philippe Fabre , Christophe Jacquemard
IPC分类号： F01D7/02 , B64C11/32 , B64C11/34
CPC分类号： F01D7/02 , B64C11/325 , B64C11/346 , Y02T50/66
摘要： The present invention relates to a rotor for a turbomotor impeller, with variable-pitch blades, comprising blade roots capable of rotating in a blade supporting structure and a device for feathering the blades. Said feathering device comprises at least one flyweight secured to a crank connected by a gear set to at least one of said blade roots.

6. 发明授权

US09447750B2 Propulsion engine 有权
标题翻译：推进发动机
公开(公告)号：US09447750B2
公开(公告)日：2016-09-20
申请号：US13456858
申请日：2012-04-26
申请人： David A Edwards
发明人： David A Edwards
IPC分类号： B64C11/38 , B64C11/42 , F02K3/072 , F01D7/02 , B64C11/30 , B64D27/00
CPC分类号： F02K3/072 , B64C11/306 , B64C11/308 , B64C11/38 , B64C11/42 , B64D2027/005 , F01D7/02 , F05D2260/79 , Y02T50/66 , Y02T50/673
摘要： A propulsion engine for an aircraft includes a first fan having a set of first blades and a second fan having a set of second blades. There is provided a first angular pitch adjustment mechanism coupled to the first set of blades, a second angular pitch adjustment mechanism coupled to the second set of blades and an actuation device coupled to the first angular pitch adjustment mechanism. The first and second angular pitch adjustment mechanisms are coupled together such that when the actuation device generates an output, the angular pitch of each of the first blades and each of the second blades changes.
摘要翻译：用于飞行器的推进发动机包括具有一组第一叶片的第一风扇和具有一组第二叶片的第二风扇。提供了耦合到第一组叶片的第一角度调节机构，联接到第二组叶片的第二角距调节机构和联接到第一角距调节机构的致动装置。第一和第二角度调节机构联接在一起，使得当致动装置产生输出时，每个第一叶片和每个第二叶片的角度间距发生变化。

7. 发明申请

US20160032740A1 VARIABLE-PITCH ROTOR WITH REMOTE COUNTERWEIGHTS 有权
标题翻译：具有远程计数器的可变式转子转子
公开(公告)号：US20160032740A1
公开(公告)日：2016-02-04
申请号：US14708353
申请日：2015-05-11
申请人： General Electric Company
发明人： Daniel Alan NIERGARTH , Brandon Wayne MILLER , Donald Albert BRADLEY
IPC分类号： F01D7/02 , F01D5/02 , F02C3/04
CPC分类号： F01D7/02 , F01D5/02 , F01D21/08 , F02C3/04 , F05D2220/32 , F05D2220/36 , F05D2240/30 , F05D2260/53 , F05D2260/77 , F05D2260/79 , F05D2270/021 , F05D2270/09 , F05D2270/58 , Y02T50/673
摘要： A pitch control mechanism includes: a rotor structure configured for rotation about a longitudinal axis; a row of blades carried by the rotor structure, each blade having an airfoil and a trunnion mounted for pivoting movement relative to the rotor structure, about a trunnion axis which is perpendicular to the longitudinal axis; a unison ring interconnecting the blades; an actuator connected to the unison ring and the rotor structure, operable to move the unison ring relative to the rotor structure; at least one moveable counterweight carried by the rotor structure, remote from the blades; and an interconnection between the blades and the counterweight, such that movement of the counterweight causes a change in the pitch angle of the blades.
摘要翻译：桨距控制机构包括：转子结构，其构造成围绕纵向轴线旋转; 由转子结构承载的一排叶片，每个叶片具有翼形件和耳轴，其围绕垂直于纵向轴线的耳轴轴线安装成相对于转子结构枢转运动; 互相连接叶片的协调环; 连接到协调环和转子结构的致动器，可操作以相对于转子结构移动协调环; 由转子结构承载的至少一个可移动配重，远离叶片; 以及叶片和配重之间的互连，使得配重的运动导致叶片的桨距角的变化。

8. 发明授权

US08967966B2 Hub for a propeller having variable pitch blades 有权
标题翻译：用于具有变桨距叶片的螺旋桨的轮毂
公开(公告)号：US08967966B2
公开(公告)日：2015-03-03
申请号：US13389031
申请日：2010-07-23
申请人： Eric Jacques Boston , Michel André Bouru , Laurent Jablonski , Philippe Gérard Edmond Joly
发明人： Eric Jacques Boston , Michel André Bouru , Laurent Jablonski , Philippe Gérard Edmond Joly
IPC分类号： F04D29/32 , F01D5/02 , F01D21/04 , B64C11/02 , B64C11/48 , F01D1/26 , F01D5/30 , F01D7/00 , F01D7/02 , F02C6/20 , F02C9/58 , B64D27/02
CPC分类号： F04D29/321 , B64C11/02 , B64C11/48 , B64D2027/026 , F01D1/26 , F01D5/025 , F01D5/3007 , F01D7/00 , F01D7/02 , F02C6/206 , F02C9/58 , F05D2220/325 , F05D2260/74 , F05D2260/79 , Y02T50/66 , Y02T50/671
摘要： A hub for a propeller having variable pitch blades for a turbine engine, for example for a propfan turbine engine. The propeller hub includes: a polygonal ring having substantially radial cylindrical housings distributed about a central axis of the ring for receiving the blades; a rotor element for the turbine of the turbine engine; a supporting flange attached to the ring so as to connect the ring to the rotor element; and a plurality of backup retaining members linked to the rotor element, and each of which includes at least one bearing surface opposite an outer surface of the ring with a radial spacing.
摘要翻译：用于螺旋桨的毂，其具有用于涡轮发动机的可变桨距叶片，例如用于propfan涡轮发动机。螺旋桨毂包括：多边形环，其具有围绕环的中心轴线分布的基本上径向的圆柱形壳体，用于接收叶片; 用于涡轮发动机的涡轮机的转子元件; 支撑凸缘，其附接到所述环，以将所述环连接到所述转子元件; 以及连接到所述转子元件的多个支撑保持构件，并且每个所述保持构件包括与所述环的外表面相对的至少一个轴承表面，所述至少一个支承表面具有径向间隔。

9. 发明授权

US08876474B2 Ram air turbine startup 有权
标题翻译：拉姆空气涡轮启动
公开(公告)号：US08876474B2
公开(公告)日：2014-11-04
申请号：US12939760
申请日：2010-11-04
申请人： David Everett Russ
发明人： David Everett Russ
IPC分类号： F01D7/02 , F03D9/00 , F02C7/32 , B64D41/00
CPC分类号： B64D41/007 , B64C11/303 , B64C11/325 , B64C11/34 , B64C11/343 , B64C11/36 , F02C7/32 , F03D9/00 , F03D9/32 , F05D2220/34 , F05D2260/56 , F05D2260/74 , F05D2260/75 , F05D2260/76 , F05D2260/77 , F05D2260/79 , F05D2260/85 , Y02E10/72 , Y02T50/671
摘要： A ram air turbine (RAT) in which a cam follower is operably coupled to turbine blades such that a cam follower position determines turbine blade pitch.
摘要翻译：凸轮空气涡轮机（RAT），其中凸轮从动件可操作地联接到涡轮机叶片，使得凸轮从动件位置确定涡轮机叶片间距。

10. 发明申请

US20130323050A1 Electrohydraulic Propeller Governor 有权
标题翻译：电液螺旋桨调速器
公开(公告)号：US20130323050A1
公开(公告)日：2013-12-05
申请号：US13483714
申请日：2012-05-30
申请人： Joel W. Kleckler
发明人： Joel W. Kleckler
IPC分类号： F01D7/02 , F01D7/00
CPC分类号： F02C9/58 , B64C11/303 , B64C11/385 , B64C11/40 , F05D2260/77 , Y02T50/671
摘要： A propeller governor for controlling blade pitch of a variable pitch propeller has a hydraulic control circuit coupled to the propeller to change blade pitch in response to hydraulic pressure. The hydraulic control circuit has a first pressure path configured to adjust blade pitch within a first range of blade pitch, and a second, different pressure path configured to adjust blade pitch within a second range of blade pitch. An electrohydraulic servo valve of the governor is configured to adjust hydraulic pressure in the first pressure path to adjust blade pitch within the first range and to adjust hydraulic pressure in the second pressure path to adjust blade pitch within the second range.
摘要翻译：用于控制可变螺距螺旋桨的叶片桨距的螺旋桨调速器具有联接到螺旋桨的液压控制回路，以响应于液压来改变叶片间距。液压控制回路具有第一压力路径，其构造成在叶片间距的第一范围内调节叶片间距，以及第二不同压力路径，其构造成在叶片间距的第二范围内调节叶片间距。调速器的电动液压伺服阀构造成调节第一压力路径中的液压压力，以将叶片间距调整到第一范围内，并且调节第二压力路径中的液压压力，以将叶片间距调整到第二范围内。

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