公开(公告)号：US3847203A

公开(公告)日：1974-11-12

申请号：US26525172

申请日：1972-06-22

申请人： SECR DEFENCE

发明人： NORTHWOOD J

IPC分类号： B22D27/04 ,  B22D27/15 ,  B22D25/06

CPC分类号： B22D27/15 ,  B22D27/045

摘要： A first molten alloy is poured into a mould and progressively cooled to produce a vertical columnar crystal growth. A second molten alloy is then poured in while the surface of the first alloy is still liquid. The progressive cooling is then continued. A suitable mould is made of ceramic material and has an overflow tube formed in the wall of the mould so that any excess of the first alloy will run off. Two pairs of alloys, suitable for casting turbine blades, are described. The advantage of this method is that different parts of the casting can be formed from different alloys and that the known advantages of controlled columnar crystal growth are substantially maintained right across the join.

摘要翻译： 将第一熔融合金倒入模具中并逐渐冷却以产生垂直柱状晶体生长。 然后将第二熔融合金倒入，同时第一合金的表面仍然是液体。 然后继续进行冷却。 合适的模具由陶瓷材料制成并且具有形成在模具的壁中的溢流管，使得任何多余的第一合金将流失。 描述了适用于铸造涡轮叶片的两对合金。 该方法的优点在于，铸造的不同部分可以由不同的合金形成，并且控制的柱状晶体生长的已知优点基本上保持在整个连接处。

公开(公告)号：US3842351A

公开(公告)日：1974-10-15

申请号：US34458073

申请日：1973-03-26

申请人： SECR DEFENCE

发明人： FIELD RICHARDS H

IPC分类号： H04M3/56 ,  H03K13/22

CPC分类号： H04M3/561

摘要： A signal combiner, for combining a plurality of delta-modulation encoded representations of analogue signals to form an equivalent of a delta-modulation encoded representation of a combination of the analogue signals, which includes a plurality of concurrently operative slope detector circuits each arranged to derive an output signal representing a slope of a separate one of the analogue signals from a comparison of two or more consecutive bit signals in its delta-modulation encoded representation, a summing circuit connected to receive the output of the slope detector circuits and to derive an output dependent on the sum of the slopes represented by the said output signals, and a pulse generating pulse sequences to form a stream of signals equivalent to a delta-modulation encoded representation of an analogue signal having a slope indicated by the current output of the summing circuit.

摘要翻译： 一种信号组合器，用于组合模拟信号的多个Δ调制编码表示以形成模拟信号的组合的Δ调制编码表示的等价物，其包括多个并行操作的斜率检测器电路，每个被配置为导出 一个输出信号，表示来自两个或更多个连续位信号在其Δ调制编码表示中的比较的模拟信号中的单独一个的斜率;一个加法电路，被连接以接收斜率检测器电路的输出并导出一个输出 取决于由所述输出信号表示的斜率的总和，以及脉冲产生脉冲序列，以形成等效于具有由求和电路的电流输出指示的斜率的模拟信号的Δ调制编码表示的信号流 。

公开(公告)号：US3841764A

公开(公告)日：1974-10-15

申请号：US26907272

申请日：1972-07-05

申请人： SECR DEFENCE

发明人： SNELL L ,  VIVIAN W

IPC分类号： A61B1/00 ,  G02B23/26 ,  G01N21/16

CPC分类号： G02B23/26 ,  A61B1/00165

摘要： The disclosure of this invention pertains to an intrascope provided at the objective end with a fastening device whereby the intrascope may be pulled from within the cavity to be inspected. The fastening device is an inflatable bag which can be lodged between two adjacent rotor blades of a turbine so that by turning the turbine the intrascope can be pulled into the turbine casing for inspection of stator blades.

摘要翻译： 本发明的公开内容涉及在目的端设置有紧固装置的入射镜，由此可以从待检查的空腔内拉入入射镜。 紧固装置是一种可充气的袋子，其可以容纳在涡轮机的两个相邻的转子叶片之间，从而通过转动涡轮机，可以将入射管件拉入涡轮机壳体中以检查定子叶片。

公开(公告)号：US3824784A

公开(公告)日：1974-07-23

申请号：US26797272

申请日：1972-06-30

申请人： SECR DEFENCE

发明人： KITSON G ,  SUTTON J

IPC分类号： F02K1/74 ,  F02C3/06 ,  F02K3/06

CPC分类号： F02K1/74

摘要： A ducted fan gas turbine engine has thrust reverser doors mounted at the hot gas stream exhaust nozzle and a fan cowl downstream portion which is translatable. The thrust reverser doors deflect the hot gas stream radially outwards and the hot gas stream in turn, deflects the cold fan stream radially outwards through a gap found by translation of the fan cowl downstream portion in a downstream direction.

摘要翻译： 管式风机燃气涡轮发动机具有安装在热气流排气喷嘴处的推力反向器门和可平移的风扇罩下游部分。 推力反向器门使热气流径向向外偏转，而热气流又使冷风扇流径向向外偏转通过下游方向上的风扇整流罩下游部分平移所产生的间隙。

公开(公告)号：US3805517A

公开(公告)日：1974-04-23

申请号：US16793171

申请日：1971-08-02

申请人： SECR DEFENCE

发明人： SEWELL P ,  MC INTYRE J

IPC分类号： F02C7/262 ,  F02G3/00

CPC分类号： F02C7/262

摘要： A gas turbine engine is provided with an electronic control system for detecting deceleration of the engine above a predetermined limit, which corresponds to flame out of the engine and for using the signal obtained thereby to initiate a relighting procedure.

摘要翻译： 燃气涡轮发动机设置有电子控制系统，用于检测发动机的减速度超过发动机熄火的预定极限，并且使用由此获得的信号来启动重新启动程序。

公开(公告)号：US3793828A

公开(公告)日：1974-02-26

申请号：US3793828D

申请日：1971-09-27

申请人： SECR DEFENCE

发明人： CHESTERS A

IPC分类号： F23R3/10 ,  F02C7/22

CPC分类号： F23R3/10

摘要： A gas turbine engine combustion device having an annular intake for the flow of primary air into the combustion chamber. The intake is divided by deflecting means into two annular ducts. One main duct being provided for the main flow of primary air through the combustion chamber, the other duct providing a flow of air which is attached to the innermost wall of the deflecting means by the Coanda effect.

摘要翻译： 一种燃气涡轮发动机燃烧装置，具有用于一次空气流入燃烧室的环形进气口。 进气口由偏转装置分成两个环形管道。 一个主管被设置用于通过燃烧室的主要空气的主流，另一个管道提供通过柯恩达效应附接到偏转装置的最内壁的空气流。

公开(公告)号：US3792828A

公开(公告)日：1974-02-19

申请号：US3792828D

申请日：1971-11-30

申请人： SECR DEFENCE

发明人： MAGUIRE A

IPC分类号： B64C23/00 ,  B64C3/50

CPC分类号： B64C23/005

摘要： An aircraft wing main spar is utilized for the carrying of flap blowing and lift augmenting air to the trailing edge of the wing. The main spar trailing edge is formed into an elongate nozzle which directs the air over and between said flaps.

摘要翻译： 飞机机翼主翼梁用于携带翼片吹风和提升增加空气到机翼的后缘。 主翼梁后缘形成为将空气引导到所述翼片之间和之间的细长喷嘴。

公开(公告)号：US3784132A

公开(公告)日：1974-01-08

申请号：US3784132D

申请日：1972-03-20

申请人： SECR DEFENCE

发明人： NEWELL C

IPC分类号： B64D1/06 ,  B64D1/02

CPC分类号： B64D1/06

摘要： An ejector release unit, for carrying aircraft stores such as bombs, enables securing and crutching of a store to be accomplished in one manoeuvre. The store must have two saddles spaced apart thereon, with store-facing surfaces on the saddle. The preferred release unit has two hooks for each saddle, the hooks engaging the store-facing surfaces. Wedges between the top of each saddle and structure of the unit are forced into engagement with saddle and structure by spring loaded plungers associated with the hooks. A manually operable crank and lever arrangement allows hooks to be engaged or disengaged with a store, and plungers to be engaged with or disengaged from wedges as required. Any movement of store relative to unit after engagement results in tightening of the wedges. Operationally stores are released by a cartridge operated piston acting on the crank.

摘要翻译： 用于承载诸如炸弹的飞机商店的喷射器释放单元能够在一次操作中实现一个商店的固定和拐杖。 商店必须有两个间隔开的鞍座，鞍座上的存储对面表面。 优选的释放单元具有用于每个鞍座的两个钩，钩与面向存储的表面接合。 每个鞍座的顶部和单元的结构之间的楔形件通过与钩相关联的弹簧加载的柱塞被迫与鞍座和结构接合。 手动操作的曲柄和杠杆装置允许钩与商店接合或脱开，并且柱塞要根据需要与楔形件接合或脱离。 存货相对单位的任何运动导致楔形收紧。 操作储存由作用在曲柄上的筒式活塞的活塞释放。

公开(公告)号：US3779666A

公开(公告)日：1973-12-18

申请号：US3779666D

申请日：1971-12-03

申请人： SECR DEFENCE

发明人： STANLEY SNELL L

IPC分类号： F04D29/52 ,  F01B25/02

CPC分类号： F04D29/524

摘要： A fluid flow compressor includes means for arbitrarily obstructing part of the flow area of the compressor duct to improve the compressor efficiency at low flow velocities. The means comprises a ring arranged in the duct and capable of being expanded in the manner of a circlip by a cam arrangement.

摘要翻译： 流体流动压缩机包括用于任意阻塞压缩机管道的一部分流动区域的装置，以在低流速下提高压缩机效率。

公开(公告)号：US3756285A

公开(公告)日：1973-09-04

申请号：US3756285D

申请日：1971-10-14

申请人： SECR DEFENCE

发明人： JOHNSON C ,  CANTWELL H

IPC分类号： F15C1/00 ,  F15C1/16

CPC分类号： F15C1/002 ,  Y10T137/2098 ,  Y10T137/2109

摘要： A fluid flow apparatus which will permit a varying quantity of fluid to be bled from a main fluid supply without substantially affecting the rate of flow of the main fluid supply.

摘要翻译： 一种流体流动装置，其将允许不同数量的流体从主流体供给排出，而不会基本上影响主流体供应源的流量。