NOISE REDUCING DEVICE AND JET PROPULSION SYSTEM
    2.
    发明申请
    NOISE REDUCING DEVICE AND JET PROPULSION SYSTEM 有权
    噪声降低装置和喷射推进系统

    公开(公告)号:US20110000181A1

    公开(公告)日:2011-01-06

    申请号:US12918899

    申请日:2009-02-25

    IPC分类号: F02G1/00 F01N1/14

    摘要: A noise reducing device in a jet engine that has a cylindrical casing, a cylindrical partition wall that is inserted in the casing while protruding partially from a trailing edge of the casing, and a compressor that compresses air that is taken into the cylindrical partition wall, with the inside of the cylindrical partition wall serving as a duct in which a core stream of high-speed air flows, and the space between the cylindrical partition wall and the casing serving as a duct in which a bypass stream of low-speed air flows, and being connected with a wing of an airplane by a pylon that has a projection portion that extends beyond the casing to the downstream of the core stream and the bypass stream, the noise reducing device includes a nozzle, disposed at the pylon on the downstream of the core stream, that injects a fluid toward a noise generation source that is produced from the mutual approach of an ambient air stream that is produced outside of the bypass stream and the core stream.

    摘要翻译: 一种喷气式发动机中的降噪装置,具有圆筒形壳体,一部分从壳体的后缘突出地插入壳体中的圆筒形分隔壁,以及压缩器,该压缩机压缩进入圆筒形分隔壁的空气, 其中圆筒形分隔壁的内部用作高速空气的核心流动的管道,以及圆柱形分隔壁和用作低压空气流动的旁路流的管道的壳体之间的空间 并且通过具有延伸超过壳体的突出部分到芯流和下游流的下游的塔架与飞机的翼连接,降噪装置包括设置在下游的塔架处的喷嘴 的核心流,其将流体朝向由旁路流外部产生的环境空气流的相互接近产生的噪声产生源和核心层 电子邮件

    Noise reduction system
    4.
    发明授权
    Noise reduction system 有权
    降噪系统

    公开(公告)号:US09528468B2

    公开(公告)日:2016-12-27

    申请号:US13504195

    申请日:2010-10-26

    摘要: A noise reduction system includes: a microjet ring (16) provided at an exhaust side peripheral edge of a main nozzle of a jet engine, and has a plurality of injection pipes (26) formed in a circumferential direction thereof at regular intervals; and a supply path configured to take part of compressed air in from a flow path in an upstream side of a combustor in the jet engine, and to guide the part of compressed air to the plurality of injection pipes (26), wherein the plurality of injection pipes (26) is configured to inject the part of compressed air to a jet flow.

    摘要翻译: 一种降噪系统,包括:设置在喷气发动机的主喷嘴的排气侧周边的微喷射环(16),并且具有以规定间隔沿圆周方向形成的多个喷射管(26) 以及供给路径,被构造成从喷气发动机的燃烧器的上游侧的流路中取出一部分压缩空气,并将压缩空气的一部分引导到多个喷射管(26),其中, 喷射管(26)构造成将一部分压缩空气喷射到喷射流。

    NOISE REDUCTION SYSTEM WITH CHAMBER
    7.
    发明申请
    NOISE REDUCTION SYSTEM WITH CHAMBER 有权
    噪声减少系统与室

    公开(公告)号:US20120228054A1

    公开(公告)日:2012-09-13

    申请号:US13504200

    申请日:2010-10-27

    IPC分类号: F01N13/10

    摘要: A noise reduction system with a chamber includes a chamber (17) which is provided at a portion of a supply path connecting a flow path in an upstream side of a combustor in a jet engine to a plurality of microjet nozzles which is provided at an exhaust side peripheral edge of a main nozzle of the jet engine, wherein the supply path is configured to supply part of compressed air from the flow path into the chamber (17), and the chamber (17) is configured to inject the compressed air through the plurality of the microjet nozzles (63) to a jet flow.

    摘要翻译: 具有腔室的降噪系统包括:室(17),其设置在将喷气发动机中的燃烧器的上游侧的流路连接到设置在排气口处的多个微喷嘴的供给路径的一部分 其中所述供应路径被配置为将来自所述流动路径的压缩空气的一部分供应到所述室(17)中,并且所述室(17)被配置为将所述压缩空气喷射通过所述喷射发动机的主喷嘴 多个微喷嘴(63)到喷射流。

    NOISE REDUCTION SYSTEM
    9.
    发明申请
    NOISE REDUCTION SYSTEM 有权
    噪声减少系统

    公开(公告)号:US20120240587A1

    公开(公告)日:2012-09-27

    申请号:US13504195

    申请日:2010-10-26

    IPC分类号: F02K1/34

    摘要: A noise reduction system includes: a microjet ring (16) provided at an exhaust side peripheral edge of a main nozzle of a jet engine, and has a plurality of injection pipes (26) formed in a circumferential direction thereof at regular intervals; and a supply path configured to take part of compressed air in from a flow path in an upstream side of a combustor in the jet engine, and to guide the part of compressed air to the plurality of injection pipes (26), wherein the plurality of injection pipes (26) is configured to inject the part of compressed air to a jet flow.

    摘要翻译: 一种降噪系统,包括:设置在喷气发动机的主喷嘴的排气侧周边的微喷射环(16),并且具有以规定间隔沿圆周方向形成的多个喷射管(26) 以及供给路径,被构造成从喷气发动机的燃烧器的上游侧的流路中取出一部分压缩空气,并将压缩空气的一部分引导到多个喷射管(26),其中, 喷射管(26)构造成将一部分压缩空气喷射到喷射流。

    JET FLOW DISCHARGE NOZZLE AND JET ENGINE
    10.
    发明申请
    JET FLOW DISCHARGE NOZZLE AND JET ENGINE 有权
    喷射喷射喷嘴和喷气发动机

    公开(公告)号:US20100031628A1

    公开(公告)日:2010-02-11

    申请号:US12519558

    申请日:2007-12-18

    IPC分类号: F02K1/48

    CPC分类号: F02K1/386 B64D29/06 B64D33/06

    摘要: A jet flow discharge nozzle includes a tubular partition wall, a tubular casing which covers an outer periphery of the tubular partition wall, and a bifurcation which extends in an axial direction of the tubular partition wall and the casing so as to support downstream ends of the tubular partition wall and the casing from outside. Inside of the tubular partition wall is defined as a flow path for a high-speed core flow. A space between the tubular partition wall and the casing is defined as a flow path for a low-speed bypass flow. A pair of first projections is provided at a downstream edge of the tubular partition wall near the bifurcation at positions symmetric about the bifurcation. One of ridges of each of the first projections faces an upstream side. The invention reduces noise by avoiding adverse effects of the presence of the bifurcation on an increase in noise.

    摘要翻译: 喷流排出喷嘴包括管状分隔壁,覆盖管状分隔壁的外周的管状壳体和沿管状分隔壁和壳体的轴向延伸的分支,以支撑管状分隔壁的下游端 管状分隔壁和外壳外壳。 管状分隔壁的内部被定义为用于高速芯流的流路。 管状分隔壁和壳体之间的空间被定义为用于低速旁路流动的流动路径。 一对第一突起设置在管状分隔壁的靠近分叉处的关于分叉对称的位置的下游边缘处。 每个第一突起的脊之一面向上游侧。 本发明通过避免分岔存在对噪声增加的不利影响来降低噪声。