利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.012 秒)

    Fan with reduced noise generation
    1.
    发明授权
    Fan with reduced noise generation 有权
    风扇产生噪音降低

    公开(公告)号：US07351041B2

    公开(公告)日：2008-04-01

    申请号：US11055469

    申请日：2005-02-10

    申请人： Robert B. Uselton ,  Leonard J. Cook ,  Terry Wright

    发明人： Robert B. Uselton ,  Leonard J. Cook ,  Terry Wright

    IPC分类号： F04D29/68

    CPC分类号： F04D29/384 ,  F04D29/667 ,  F24F1/38 ,  F24F1/40 ,  F24F1/50 ,  F24F13/24 ,  Y10S416/03

    摘要： Axial flow fan propellers are provided with a roughened portion along the trailing edge of the fan blades on the pressure side of the blade to minimize tonal acoustic emissions generated by laminar boundary layer vortex shedding. The roughened portion may be provided by trip surfaces formed in the blades, by strips of abrasive material adhered to the blades along the trailing edges, respectively, by parallel or cross-hatched serrations in the blades or by upturned or offset trailing edges of the blades. The height of the roughened portion should be about equal to the boundary layer thickness of air flowing over the blade surfaces during operation of the fan. The fan propellers are particularly advantageous in heat exchanger applications, such as residential air conditioning system condenser units.

    摘要翻译： 轴流风扇螺旋桨在叶片的压力侧沿着风扇叶片的后缘设置有粗糙部分，以最小化由层流边界层涡流脱落产生的音调声发射。 粗糙部分可以由形成在叶片中的跳闸表面提供，分别通过刀片中的平行或交叉阴影的锯齿形或通过刀片的向上或偏移的后缘沿着后缘分别粘附到刀片上的磨料条 。 粗糙部分的高度应大约等于在风扇运行期间在叶片表面上流动的空气的边界层厚度。 风扇螺旋桨在热交换器应用中是特别有利的，例如住宅空调系统冷凝器单元。

    Aircraft anti-icing plenum
    3.
    发明授权
    Aircraft anti-icing plenum 失效
    飞机防冰通风室

    公开(公告)号：US3933327A

    公开(公告)日：1976-01-20

    申请号：US502059

    申请日：1974-08-30

    申请人： Leonard J. Cook ,  Herman A. Rosenthal

    发明人： Leonard J. Cook ,  Herman A. Rosenthal

    IPC分类号： B64D15/04 ,  F02C7/047

    CPC分类号： B64D15/04 ,  F02C7/047 ,  Y02T50/671

    摘要： The leading edge of the jet engine nacelle is provided with structure to prevent the formation of ice particles at the inlet of the jet engine. The nacelle is split into leading and trailing chambers and there is a partition separating the chambers, the leading one of which includes the anti-icing apparatus. The leading chamber includes a double skin generally facing interiorly toward the jet engine and that double skin defines the nacelle therebetween which permits the passage of the hot gases which heat the outer skin from the inside thereof. Conduit means controllably pass hot exhaust gases from the jet engine to within the leading chamber from where they pass into a cell via a series of spaced apertures formed in the inner double skin. A series of spaced channels are formed between the inner and outer skins and connect the leading and trailing chambers. Those channels pass the spent heating gases into the trailing chamber which includes the structural acoustical sandwich comprising inner and outer skins separated by a layer of honeycomb core. The outer skin is apertured for acoustic purposes and the spent gases pass through those apertures and are discharged.

    摘要翻译： 喷气发动机机舱的前缘设置有防止在喷气发动机入口处形成冰颗粒的结构。 机舱分为前，后室，分隔室的隔板，其中的一个包括防冰装置。 引导室包括通常面向喷气发动机内部的双皮，并且双层皮肤在其间限定了其间的机舱，其允许从内部加热外皮的热气体通过。 导管装置意味着可控制地将来自喷气发动机的热废气从引导室中通过形成在内部双层皮肤中的一系列间隔开的孔进入细胞。 在内表皮和外表层之间形成一系列间隔开的通道并连接前腔和后腔。 这些通道将废加热气体传送到后室，其包括结构声学夹层，其包括由一层蜂窝芯隔开的内表皮和外表皮。 外皮是有孔的用于声学目的，废气通过那些孔并被排出。

    Vibration dampening device
    4.
    发明授权
    Vibration dampening device 有权
    减震装置

    公开(公告)号：US07137268B2

    公开(公告)日：2006-11-21

    申请号：US10990566

    申请日：2004-11-17

    申请人： Leonard J. Cook ,  Kevin R. Keoppel ,  Adam C. Bunnell

    发明人： Leonard J. Cook ,  Kevin R. Keoppel ,  Adam C. Bunnell

    IPC分类号： F25D19/00

    CPC分类号： F24F1/40 ,  F24F1/32 ,  F25B2500/13

    摘要： A device is provided for dampening compressor-induced vibration in an air conditioning system of the type having an indoor unit, an outdoor unit and a refrigerant conduit therebetween. The outdoor unit includes a compressor that is operable to circulate a vapor compression refrigerant through the conduit between the indoor and outdoor units. The device is comprised of a support member containing a section of refrigerant line. The support member is located beneath the outdoor unit and the refrigerant line section is interposed in a portion of the refrigerant conduit between said compressor and said indoor unit, such that the refrigerant flowing between the indoor unit and the compressor is routed through the line section in the outdoor unit support member.

    摘要翻译： 提供一种用于在其间具有室内单元，室外单元和制冷剂导管的类型的空调系统中抑制压缩机引起的振动的装置。 室外机包括压缩机，其可操作以使蒸汽压缩制冷剂循环通过室内和室外单元之间的导管。 该装置由包含一段制冷剂管线的支撑构件组成。 支撑部件位于室外机下方，制冷剂管路部分插入在压缩机和室内机之间的制冷剂管道的一部分中，使得在室内机与压缩机之间流动的制冷剂通过线路部分 室外单元支撑构件。