公开(公告)号：US20170327205A1

公开(公告)日：2017-11-16

申请号：US15156224

申请日：2016-05-16

Applicant: Bell Helicopter Textron Inc.

Inventor： Jared Mark Paulson ,  Paul K. Oldroyd ,  Christopher Foskey

IPC: B64C11/28 ,  B64C29/00 ,  B64C11/26

CPC classification number: B64C11/28 ,  B64C11/26 ,  B64C27/473 ,  B64C27/50 ,  B64C29/0033 ,  B64C2027/4736

Abstract: A tiltrotor aircraft includes a fuselage, a wing member extending from the fuselage, an engine disposed relative to the wing member, a rotor hub assembly mechanically coupled to the engine and a plurality of proprotor blade assemblies rotatably mounted to the rotor hub assembly and operable for beamwise folding relative thereto. The proprotor blade assemblies each including a spar and a sheath extending spanwise along a leading edge of the spar. The spar has a root section, a main section and a tip section. The spar has a generally oval cross section at radial stations along the main section of the spar with the root section of the spar forming an integral tang assembly operable for coupling the spar to the rotor hub assembly.

公开(公告)号：US09611030B2

公开(公告)日：2017-04-04

申请号：US14655135

申请日：2013-12-16

Applicant: EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE

Inventor： Caroline Petiot ,  Michel Bermudez ,  Didier Mesnage

IPC: B64C1/00 ,  B64C7/00 ,  B64C1/06 ,  B64C3/20 ,  B64C11/26 ,  F01D21/04 ,  B64C11/20

CPC classification number: B64C7/00 ,  B64C1/062 ,  B64C3/20 ,  B64C11/205 ,  B64C11/26 ,  B64C2001/0072 ,  F01D21/045 ,  Y02T50/43 ,  Y02T50/672

Abstract: A device for absorbing kinetic energy for an aircraft structural element undergoing a dynamic impact. The device includes an outer enclosure made from a braided composite material configured to preserve its integrity after an impact, a foam core, contained in the outer enclosure and to at least partially fill the outer enclosure. The foam core is configured to at least partially absorb the kinetic energy generated by the impact. Reinforcing elements are integrated at least partially into the foam core to dissipate, combined with the form core, the kinetic energy generated by the impact. The reinforcing elements includes discontinuous threads inserted into the foam core by stitching, and each discontinuous thread includes an L- or T-shaped head, folded down outside the outer enclosure.

公开(公告)号：US09505486B2

公开(公告)日：2016-11-29

申请号：US13689959

申请日：2012-11-30

Applicant: David P. Nagle ,  Ludovic Prunet ,  Patrice Brion

Inventor： David P. Nagle ,  Ludovic Prunet ,  Patrice Brion

IPC: B64C11/26

CPC classification number: B64C11/26 ,  Y10T29/49332

Abstract: A propeller blade includes a foam core, an adhesive layer formed on the core and a structural layer that covers at least a portion of the adhesive layer and that surrounds at least a portion of the foam core.

Abstract translation: 螺旋桨叶片包括泡沫芯，形成在芯上的粘合剂层和覆盖粘合剂层的至少一部分并且围绕泡沫芯的至少一部分的结构层。

公开(公告)号：US09457435B2

公开(公告)日：2016-10-04

申请号：US14374670

申请日：2013-01-24

Applicant: SNECMA ,  SAFRAN

Inventor： Richard Mathon ,  Olivier Foussard ,  Yann Marchal ,  Franck Bernard Leon Varin

IPC: B23P15/04 ,  B29C70/48 ,  B29C70/54 ,  B29C70/86 ,  B29D99/00 ,  B29C70/08 ,  B64C11/26 ,  B64F5/00 ,  B29C31/08 ,  B29C70/24 ,  B29L31/08 ,  B64D27/00

CPC classification number: B23P15/04 ,  B29C31/08 ,  B29C31/085 ,  B29C70/086 ,  B29C70/24 ,  B29C70/48 ,  B29C70/541 ,  B29C70/86 ,  B29D99/0025 ,  B29L2031/08 ,  B64C11/26 ,  B64D2027/005 ,  B64F5/10 ,  Y02T50/66 ,  Y10T29/49332 ,  Y10T29/49336 ,  Y10T29/49337

Abstract: A propeller blade, which can belong to a fan without covering by an external casing, includes two portions fitted into one another and of different materials, generally composite, to resist various stresses, heating coming from a rotor or impacts of solid bodies. An internal portion includes a blade core, a blade shank and possibly a foam lining, and a preform of an outside portion is assembled to it by surrounding it closely before being completely formed by receiving its resin, which is placed into polymerization. A method for producing the propeller blade guarantees good assembly of the portions without defects of form, damage or deformation of a fiber weave.

Abstract translation: 可以属于风扇而不被外部壳体覆盖的螺旋桨叶片包括彼此并且通常复合的不同材料的两个部分，以抵抗各种应力，来自转子的加热或固体的冲击。 内部部分包括刀片芯，刀片柄和可能的泡沫衬里，并且外部部分的预成型件通过在通过接收其被聚合的树脂完全形成之前紧密地围绕在其上而形成。 用于制造螺旋桨叶片的方法保证了这些部分的良好组装，而没有纤维编织的形式，损坏或变形的缺陷。

公开(公告)号：US09266603B2

公开(公告)日：2016-02-23

申请号：US13484007

申请日：2012-05-30

Applicant: Danny Ball ,  Kevin Pfeiffer

Inventor： Danny Ball ,  Kevin Pfeiffer

IPC: B29C45/02 ,  B29C65/52 ,  B64C11/26 ,  B64C11/00 ,  B64C11/02 ,  B64C11/04 ,  B64C11/20 ,  B32B37/00 ,  B32B27/00 ,  B32B27/38 ,  B32B9/00 ,  B32B37/02 ,  B32B37/18

CPC classification number: B64C11/26 ,  B32B9/00 ,  B32B27/00 ,  B32B27/38 ,  B32B37/00 ,  B32B37/02 ,  B32B37/18 ,  B64C11/00 ,  B64C11/02 ,  B64C11/04 ,  B64C11/20 ,  B64C2201/00 ,  Y10T29/49332 ,  Y10T156/1057 ,  Y10T156/1089

Abstract: A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.

Abstract translation: 公开了制造螺旋桨产品的方法。 螺旋桨使用粘附到叠层轮毂上的聚氨酯芯形成芯组件。 然后使用树脂传递模塑工艺在芯组件上形成封装的结构层压板表层以产生单件复合螺旋桨。

公开(公告)号：US20140133995A1

公开(公告)日：2014-05-15

申请号：US13873726

申请日：2013-04-30

Applicant: Hamilton Sundstrand Corporation ,  Ratier-Figeac SAS

Inventor： David P. Nagle ,  Patrice Brion ,  Bruno Petellaz

IPC: B64C11/26 ,  B29D99/00

CPC classification number: B64C11/26 ,  B29D99/0025 ,  Y10T29/49337

Abstract: A propeller blade includes a foam core, a structural layer formed of multiple layers that surrounds at least a portion of the foam core and at least one section of fibers formed separately from the structural layer located between two of the multiple layers.

Abstract translation: 螺旋桨叶片包括泡沫芯，由多个层形成的结构层，所述结构层围绕泡沫芯的至少一部分，以及与位于多个层中的两个之间的结构层分开形成的至少一段纤维。

公开(公告)号：US20100272576A1

公开(公告)日：2010-10-28

申请号：US11505157

申请日：2006-08-15

Applicant: Abe Karem

Inventor： Abe Karem

IPC: B64C11/26 ,  G06F17/50

CPC classification number: B64C27/467

Abstract: Blades for rotorcraft are designed and/or implemented with rotor blades having a swept portion that occupies at least 20-40% of a length of the blade. Forward and aft sweeps are contemplated, with up to 20° or more of sweep. The swept portion preferably has a thickness ration of at least 10-20% at R80, and can have a tapered planform with a relatively outboard section having a smaller chord than a relatively inboard section. Contemplated design methods include optimizing or otherwise designing the rotor blade planform and lift distribution along the blade for efficiency in various flight conditions without taking into account the detrimental effects of high Mach numbers, and then using sweep angle, airfoil thickness and transonic airfoil shaping to maintain the lift distribution, low drag and low noise level at real Mach numbers at the various blade stations at the various flight conditions.

Abstract translation: 用于旋翼飞机的叶片被设计和/或实施为具有占据刀片长度的至少20-40％的扫掠部分的转子叶片。 可以预期前进和后掠，最多可以有20°或更多的扫掠。 扫掠部分优选在R80具有至少10-20％的厚度比例，并且可以具有锥形平面图，其具有比相对内侧部分更小的弦的相对外侧部分。 考虑的设计方法包括优化或以其他方式设计转子叶片平面图和沿着叶片的升力分布，以在各种飞行条件下效率，而不考虑高马赫数的有害影响，然后使用扫掠角度，翼型厚度和跨音速翼型成形来维持 在各种飞行条件下各个刀片站的实际马赫数的电梯分布，低阻力和低噪声水平。

公开(公告)号：US20100104443A1

公开(公告)日：2010-04-29

申请号：US12447605

申请日：2007-11-01

Applicant: Kevin Pentony

Inventor： Kevin Pentony

IPC: B64C11/04 ,  B64C11/26

CPC classification number: B64C11/06 ,  Y10T29/49332 ,  Y10T29/49336

Abstract: A propeller blade assembly having mounting arrangements for composite aircraft propeller blades.

Abstract translation: 具有用于复合飞机螺旋桨叶片的安装装置的螺旋桨叶片组件。

公开(公告)号：US07517198B2

公开(公告)日：2009-04-14

申请号：US11725916

申请日：2007-03-20

Applicant: Myles L. Baker ,  Cory P. Arendt

Inventor： Myles L. Baker ,  Cory P. Arendt

IPC: B64C11/26

CPC classification number: F03D1/0633 ,  F03D1/0675 ,  F05B2250/71 ,  F05B2280/6003 ,  F05B2280/6013 ,  F05C2253/04 ,  F05C2253/16 ,  Y02E10/721 ,  Y10T29/49332

Abstract: A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure.

Abstract translation: 一种轻质的风力涡轮机叶片，其形成有复合桁架接头的桁架支撑结构组件，其包括复合翼梁和横向构件，所述组合梁与横向构件以相互间隔的方式连接到轻质肋板的脊柱上。 肋面板彼此平行间隔地定向并且单独地模制成具有为成品叶片组件限定各个曲率区域的周长。 桁架支撑结构覆盖有轻质玻璃纤维或硬化的织物表皮，其附着并安装在形成翼型结构的相应肋板边缘上。

公开(公告)号：US20050241539A1

公开(公告)日：2005-11-03

申请号：US11111226

申请日：2005-04-21

Applicant: Wolfgang Hagen ,  Wilfried Hohn ,  Dieter Schweizer

Inventor： Wolfgang Hagen ,  Wilfried Hohn ,  Dieter Schweizer

IPC: B63H3/00 ,  B64C11/26 ,  C04B7/00 ,  C04B12/04 ,  C04B14/00 ,  C04B24/10 ,  C04B24/38 ,  C04B26/02 ,  C04B28/02 ,  C04B28/14 ,  C04B28/26 ,  C04B40/00 ,  C04B40/06 ,  F01D5/28

CPC classification number: B63H3/008 ,  C04B24/383 ,  C04B26/02 ,  C04B28/02 ,  C04B28/14 ,  C04B40/0039 ,  C04B40/0608 ,  C04B2103/0057 ,  C04B2103/0099 ,  C04B2111/00094 ,  C04B2111/00129 ,  C04B2111/00482 ,  C04B2111/00637 ,  C04B2111/00646 ,  C04B2111/34 ,  C04B2111/56 ,  C04B2201/10 ,  Y02W30/97 ,  C04B20/002 ,  C04B24/2652 ,  C04B24/38 ,  C04B24/168 ,  C04B2103/44 ,  C04B2103/00 ,  C04B2103/46 ,  C04B14/10 ,  C04B14/18 ,  C04B14/20 ,  C04B14/28 ,  C04B14/365 ,  C04B18/24 ,  C04B20/0048 ,  C04B24/10 ,  C04B24/223 ,  C04B24/226 ,  C04B24/2623 ,  C04B24/2647 ,  C04B24/32 ,  C04B2103/0086 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/304 ,  C04B2103/50 ,  C04B2103/30 ,  C04B2103/40

Abstract: A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a dry tile cement composition wherein the amount of the cellulose ether in the tile cement composition is significantly reduced. When this tile cement composition is mixed with water and applied to a substrate, the correction time, applicability, and sag resistance of the wet mortar are comparable or improved as compared to when using conventional similar cellulose ethers.

Abstract translation: 将由原棉短绒制成的纤维素醚和至少一种添加剂的混合物组合物用于干瓷砖水泥组合物中，其中瓷砖水泥组合物中的纤维素醚的量显着降低。 当将该瓦片水泥组合物与水混合并施加到基材上时，与使用常规的类似纤维素醚相比，湿砂浆的校正时间，适用性和抗流挂性可比较或改进。