Helicopter rotor blades
    91.
    发明公开
    Helicopter rotor blades 失效
    直升机旋翼桨叶

    公开(公告)号:EP0482788A1

    公开(公告)日:1992-04-29

    申请号:EP91309245.8

    申请日:1991-10-09

    IPC分类号: B64C27/46

    CPC分类号: B64C27/463 Y10S416/05

    摘要: Flow separation behind the notch region (21) of a swept tip (12) of a helicopter rotor blade (11) is reduced by features of the geometry and aerodynamic characteristics of the notch region itself. In particular it has been found beneficial for a forwardly swept leading edge portion (16) to extend at an angle between 30 degrees and 55 degrees from a reference line parallel to a blade pitch change axis (31) and the leading edge of the aerofoil in the notch region incorporates blade droop (30).

    摘要翻译: 直升机转子叶片(11)的扫掠尖端(12)的凹口区域(21)后面的流动分离通过凹槽区域自身的几何形状和空气动力特性的特征而减小。 具体而言,已经发现对于向前扫掠的前缘部分(16)以与平行于叶片变桨轴线(31)的参考线成30度和55度之间的角度延伸并且机翼的前缘 切口区域结合了刀片下垂(30)。

    Helicopter rotor blades
    92.
    发明公开
    Helicopter rotor blades 失效
    RotorblättereinesDrehflügelflugzeuges。

    公开(公告)号:EP0481661A1

    公开(公告)日:1992-04-22

    申请号:EP91309244.1

    申请日:1991-10-09

    IPC分类号: B64C27/46 B64C23/06

    摘要: Flow separation behind the notch region (21) of a swept tip (12) of a helicopter rotor blade (11) is reduced by a plurality of boundary layer control vanes (22) located adjacent a forwardly swept leading edge portion (16) forming the notch region (21).

    摘要翻译: 直升机转子叶片(11)的扫掠尖端(12)的切口区域(21)后面的流动分离被多个边界层控制叶片(22)减少,所述多个边界层控制叶片(22)邻近形成 缺口区域(21)。

    Backshells
    93.
    发明公开
    Backshells 失效
    底壳

    公开(公告)号:EP0437054A3

    公开(公告)日:1991-10-23

    申请号:EP90313543.2

    申请日:1990-12-12

    IPC分类号: H01R13/648

    CPC分类号: H01R13/648

    摘要: A backshell for connecting screened multi-core cables includes a tubular body portion which in a preferred embodiment includes a plurality of circumferentially arranged holes one of which, in use, receives the free end of an electrically conductive ribbon wound round the wires of the cable and in contact with their individual screens. Rotation of the body portion winds the ribbon around the periphery of the cable until the space is filled, the ribbon being wound externally round the tubular body portion and secured with termination means whereby the individual screens are connected electrically to the backshell. Attachment means facilitate attachment of the backshell either to a cylindrical connector body or to a hollow box member for connection in turn to a rectangular connector body.

    Method for producing a component from fibre-reinforced plastic materials
    94.
    发明公开
    Method for producing a component from fibre-reinforced plastic materials 失效
    Verfahren zum Herstellen eines Bauelementes ausfaserverstärktemKunststoff。

    公开(公告)号:EP0396281A2

    公开(公告)日:1990-11-07

    申请号:EP90304205.9

    申请日:1990-04-19

    IPC分类号: B29D31/00 B29C67/14 B32B1/00

    摘要: A method for producing a component having a wedge-shaped cross section from fibre reinforced plastic material comprises laying a plurality of sheets of such material in a stack with adjacent sheets staggered in a widthwise direction, cutting the stack longitudinally to form two part stacks, joining the part stacks so that the cut edges form a common edge of the joined part stacks and consolidating and curing the assembly to form the component.

    摘要翻译: 一种从纤维增强塑料材料制造具有楔形横截面的部件的方法包括将多个这样的材料片堆叠在一起,其中相邻的片材在宽度方向上交错,纵向切割堆叠以形成两个部分堆叠, 部分堆叠使得切割边缘形成接合部分堆叠的公共边缘并且固结和固化组件以形成部件。

    Helicopter rotor blades
    95.
    发明公开
    Helicopter rotor blades 失效
    直升机转子叶片

    公开(公告)号:EP0351104A3

    公开(公告)日:1990-09-26

    申请号:EP89306634.0

    申请日:1989-06-29

    IPC分类号: B64C27/46

    CPC分类号: B64C27/463

    摘要: The swept extreme tip edge (35) of a helicopter rotor blade (11) incorporates blade droop to reduce aerodynamic pitching moments caused by spanwise flow encountered in the fore and aft sectors of a rotor rotational disc during forward flight of a helicopter on which the blade is fitted.

    Method for forming components from fibre-reinforced thermoplastic materials
    96.
    发明公开
    Method for forming components from fibre-reinforced thermoplastic materials 失效
    一种用于形成制造的纤维增强的热塑性材料工件的方法。

    公开(公告)号:EP0375280A1

    公开(公告)日:1990-06-27

    申请号:EP89313081.5

    申请日:1989-12-14

    IPC分类号: B29C43/18

    摘要: A single stage method for forming and joining pre-consolidated sheets (15, 16, 19) of fibre-reinforced thermoplastics material each having an adherent polymer layer (23, 24) in those areas that are to be joined comprises locating one of the sheets (15, 16) in a female mould tool cavity (18) which is heated to the fusion bonding temperature of the adherent layers (23, 24). A second sheet (19), located in register with the cavity is heated to its melt temperature and formed to shape by a male mould tool part (20) while simultaneously applying pressure to the areas of the sheets to be joined together to form the component.

    摘要翻译: 用于形成和加入纤维增强热塑性塑料材料的预压实板(15,16,19)的单级方法,每一个都具有在粘合聚合物层(23,24)的那些区域没有要被接合的步骤包括定位所述片材的一个 (15,16)中的阴模的工具腔体(18),所有这些都被加热到粘附层(23,24)的熔接温度。 位于寄存器与所述腔中的第二片材(19)被加热至其熔融温度和形成。通过阳模工具部分(20),同时将压力施加至片材的区域被接合到一起以形成所述部件成形 ,

    Helicopter control systems
    97.
    发明公开
    Helicopter control systems 失效
    直升机控制系统

    公开(公告)号:EP0335569A3

    公开(公告)日:1990-03-21

    申请号:EP89302819.1

    申请日:1989-03-21

    IPC分类号: G05D1/06 G05D1/08 B64C13/50

    摘要: A helicopter control system comprises a flight control computer (22), an engine control computer (34) and an integrated flight and engine control computer (45), the latter generating output signals operative both in a flight control system and an engine control system to eliminate or reduce transient variations in the speed of rotation of a main sustaining rotor (13). The invention can be used with full or limited authority flight control systems.

    Helicopter rotor blades
    98.
    发明公开
    Helicopter rotor blades 失效
    Hubschrauberrotorblatt。

    公开(公告)号:EP0351104A2

    公开(公告)日:1990-01-17

    申请号:EP89306634.0

    申请日:1989-06-29

    IPC分类号: B64C27/46

    CPC分类号: B64C27/463

    摘要: The swept extreme tip edge (35) of a helicopter rotor blade (11) incorporates blade droop to reduce aerodynamic pitching moments caused by spanwise flow encountered in the fore and aft sectors of a rotor rotational disc during forward flight of a helicopter on which the blade is fitted.

    摘要翻译: 直升机转子叶片(11)的扫过的尖端边缘(35)包括叶片下垂部分,以减少由直升机向前飞行期间在转子旋转盘的前部和后部段中遇到的翼展方向流引起的空气动力学俯仰力矩,其中叶片 装配。

    Helicopter control systems
    99.
    发明公开
    Helicopter control systems 失效
    Steuerungssystem eines Hubschraubers。

    公开(公告)号:EP0335569A2

    公开(公告)日:1989-10-04

    申请号:EP89302819.1

    申请日:1989-03-21

    IPC分类号: G05D1/06 G05D1/08 B64C13/50

    摘要: A helicopter control system comprises a flight control computer (22), an engine control computer (34) and an integrated flight and engine control computer (45), the latter generating output signals operative both in a flight control system and an engine control system to eliminate or reduce transient variations in the speed of rotation of a main sustaining rotor (13). The invention can be used with full or limited authority flight control systems.

    摘要翻译: 直升机控制系统包括飞行控制计算机(22),发动机控制计算机(34)和集成飞行和发动机控制计算机(45),后者在飞行控制系统和发动机控制系统中产生输出信号, 消除或减少主维持转子(13)的旋转速度的瞬时变化。 本发明可以用于全面或有限权限的飞行控制系统。