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436 条记录 (耗时 0.024 秒)

    Damping element for independent turbomachine blades
    71.
    发明授权
    Damping element for independent turbomachine blades 失效
    独立涡轮机叶片的阻尼元件

    公开(公告)号：US4734010A

    公开(公告)日：1988-03-29

    申请号：US860827

    申请日：1986-05-08

    申请人： Josef Battig

    发明人： Josef Battig

    IPC分类号： F01D5/26 ,  F01D5/22 ,  F16F15/12 ,  F16F15/133

    CPC分类号： F01D5/22 ,  Y10S416/50

    摘要： The present invention relates to a damping element for independent blades of a turbomachine in which the blades fastened in the rotor are connected together, preferably in the radially outer region, the connection between two blades consists of an elastically deformable platelet curved towards the center of the rotor, which platelet engages in retention features on the suction side of one blade and on the pressure side of a second, neighboring blade. The retention features on the blades can be either recesses or protruding lugs, in or on which the platelets are supported.

    摘要翻译： 本发明涉及一种用于涡轮机的独立叶片的阻尼元件，其中固定在转子中的叶片优选地连接在一起，优选在径向外部区域中，两个叶片之间的连接由朝向中心的弯曲的可弹性变形的小片组成 转子，哪个血小板与一个叶片的吸入侧和第二个相邻叶片的压力侧的保持特征接合。 叶片上的保持特征可以是在支撑血小板的或在其上的凹槽或突出的凸耳。

    Apparatus and method for reducing relative motion between blade and rotor in steam turbine
    72.
    发明授权
    Apparatus and method for reducing relative motion between blade and rotor in steam turbine 失效
    用于减少蒸汽轮机中叶片和转子之间的相对运动的装置和方法

    公开(公告)号：US4725200A

    公开(公告)日：1988-02-16

    申请号：US18320

    申请日：1987-02-24

    申请人： Stephen A. Welhoelter

    发明人： Stephen A. Welhoelter

    IPC分类号： F01D5/32 ,  F01D5/26 ,  F01D5/30 ,  F01D5/10

    CPC分类号： F01D5/26 ,  F01D5/3007 ,  Y10S416/50

    摘要： An apparatus and method for use in steam turbines of the type employing axial entry blades comprises a plurality of resilient rings disposed in a generally axially extending slot in the base of each blade root. The rings urge each root radially outward so as to minimize blade flop during turning gear operation.

    摘要翻译： 用于采用轴向进入叶片的蒸汽涡轮机中的装置和方法包括多个弹性环，其设置在每个叶片根部的基部中的大致轴向延伸的槽中。 环向径向向外推动每根，以便在转动齿轮操作期间最小化叶片翻转。

    Ventilation fan with noise-attenuating housing
    73.
    发明授权
    Ventilation fan with noise-attenuating housing 失效
    通风风扇带噪音衰减的外壳

    公开(公告)号：US4508486A

    公开(公告)日：1985-04-02

    申请号：US383112

    申请日：1982-05-28

    申请人： Charles L. Tinker

    发明人： Charles L. Tinker

    IPC分类号： F04D29/66 ,  F01D5/26

    CPC分类号： F04D29/664 ,  Y10S454/906

    摘要： In a high-speed, high-volume ventilation fan, a noise-attenuating housing structure includes a perforated inner casing contained within a solid-walled outer casing. Filling the space between the inner and outer casings is a porous, sound-absorbing material. To prevent loss of downstream pressure, and therefore operational efficiency, due to leakages of air through the sound-absorbing material from the downstream side at the fan blades to the upstream side thereof, an annular anti-flow barrier is situated in the space between the inner and outer casings slightly downstream of the fan blades. The structure thus provides a high degree of noise attenuation without sacrificing operational efficiency.

    摘要翻译： 在高速，高容量的通风扇中，噪声衰减的壳体结构包括容纳在实心外壳内的穿孔内壳。 填充内壳和外壳之间的空间是多孔的吸声材料。 为了防止由于吸风材料从风扇叶片的下游侧到其上游侧的空气的泄漏而导致的下游压力的损失和因此的运行效率，环形防流动屏障位于 内壳和外壳稍微在风扇叶片的下游。 因此，该结构提供高度的噪声衰减，而不牺牲操作效率。

    Vibration damping device, especially for a blade of a turbojet engine
    74.
    发明授权
    Vibration damping device, especially for a blade of a turbojet engine 失效
    振动阻尼装置，尤其适用于涡轮喷气发动机的叶片

    公开(公告)号：US4453891A

    公开(公告)日：1984-06-12

    申请号：US392225

    申请日：1982-06-25

    申请人： Alexandre Forestier

    发明人： Alexandre Forestier

    IPC分类号： F01D5/26 ,  F01D5/30 ,  F04D29/34 ,  F01D5/10

    CPC分类号： F01D5/323 ,  F01D5/26 ,  F01D5/326 ,  Y10S416/50

    摘要： A device is disclosed for vibration damping, especially in fans of turbojets. The root engaged inside a rotor support disk slot is kept against the upper walls of the slot under the exertion of pressure acting on the lower side of the blade root due to the present device. The device includes a torsion bar which is placed beneath the root of the blade and of which one of the ends is attached to a cam resting against the base of the root of the blade. The other end of the torsion bar is provided with a cam inserted on said bar against the base of the root of the blade under stress that was previously conveyed to the bar.

    摘要翻译： 公开了用于减振的装置，特别是在涡轮喷气发动机的风扇中。 由于本装置，接合在转子支撑盘槽内部的根部在作用在叶片根部的下侧上的压力作用下保持抵靠槽的上壁。 该装置包括扭杆，该扭杆位于叶片的根部下方，并且其中一个端部附接到抵靠叶片根部的基部的凸轮。 扭力杆的另一端设置有凸轮，所述凸轮在先前被传送到杆的应力下插入在所述杆上抵靠叶片根部的基部。

    Interblade damper and seal for turbomachinery rotor
    75.
    发明授权
    Interblade damper and seal for turbomachinery rotor 失效
    用于涡轮机转子的叶片阻尼器和密封件

    公开(公告)号：US4101245A

    公开(公告)日：1978-07-18

    申请号：US754666

    申请日：1976-12-27

    申请人： John R. Hess ,  Herbert Frederick Asplund

    发明人： John R. Hess ,  Herbert Frederick Asplund

    IPC分类号： F01D5/22 ,  F01D5/30 ,  F01D11/00 ,  F01D5/26

    CPC分类号： F01D5/22 ,  F01D11/008 ,  F01D5/3007 ,  Y10S416/50

    摘要： An interblade seal and vibration damper to be positioned in the damper cavity defined between a rotor disc, adjacent blades and adjacent blade platforms so as to seal across an interplatform gap by providing line contact between the damper and the platforms on opposite sides thereof for the full axial dimension of the cavity and with the damper shaped so as to have a low center of gravity for operational stability and which damper also responds to centrifugal force during rotor operation to establish damping friction between said damper and said platforms when the platforms move circumferentially.

    摘要翻译： 叶片密封和振动阻尼器定位在限定在转子盘，相邻叶片和相邻叶片平台之间的阻尼器腔中，以便通过在阻尼器和其相对侧上的平台之间提供线接触来跨越平台间隙进行密封，以满足 空腔的轴向尺寸和形成为具有低重心的阻尼器的阻尼器，用于操作稳定性，并且该阻尼器还响应于转子操作期间的离心力，以在平台周向移动时在所述阻尼器和所述平台之间建立阻尼摩擦。