LOW PRESSURE TURBINE FOR AN AIRCRAFT TURBOMACHINE, COMPRISING A SEGMENTED NOZZLE WITH AN IMPROVED DESIGN
    21.
    发明申请
    LOW PRESSURE TURBINE FOR AN AIRCRAFT TURBOMACHINE, COMPRISING A SEGMENTED NOZZLE WITH AN IMPROVED DESIGN 有权
    用于飞机涡轮机的低压涡轮机,包括具有改进设计的分段喷嘴

    公开(公告)号:US20120134788A1

    公开(公告)日:2012-05-31

    申请号:US13300981

    申请日:2011-11-21

    IPC分类号: F04D29/58

    摘要: The invention relates to a low pressure turbine (1) of a turbomachine comprising a nozzle (62) belonging to an upstream stage (20B) and a nozzle (162) belonging to a downstream stage (20C), the nozzle (62) forming segments (62a) having an external structure (66) comprising: a tab (76) bearing radially on a hook (79) fixed to the case, a tab (85) bearing radially on a reaming (87) in the case, the tabs (76, 85) delimiting an annular upstream cooling air circulation cavity (91), a contact surface (84) extending in the downstream direction from the tab (85) and lined with an abradable element (86) on the inside, the contact surface comprising a downstream end (92) bearing axially on the nozzle (162) and bearing radially on a stop (93) of the case, the contact surfaces (84) delimiting an annular downstream cooling air circulation cavity (94) communicating with cavity (91).

    摘要翻译: 本发明涉及一种涡轮机的低压涡轮(1),其包括属于上游级(20B)的喷嘴(62)和属于下游级(20C)的喷嘴(162),所述喷嘴(62)形成段 (62a),其具有外部结构(66),所述外部结构(66)包括:径向地支撑在固定到所述壳体上的钩(79)上的突片(76),在所述壳体中的径向(87) 限定环形上游冷却空气循环空腔(91);接触表面(84),其从所述突片(85)向下游方向延伸并且在内侧衬有可磨损元件(86),所述接触表面包括 位于所述喷嘴(162)上并且径向地支承在所述壳体的止动件(93)上的下游端(92),所述接触表面(84)限定与腔(91)连通的环形下游冷却空气循环腔(94) 。

    Arrangement for adjusting the diameter of a gas turbine stator
    24.
    发明授权
    Arrangement for adjusting the diameter of a gas turbine stator 有权
    用于调整燃气轮机定子直径的装置

    公开(公告)号:US06666645B1

    公开(公告)日:2003-12-23

    申请号:US09926122

    申请日:2001-09-06

    IPC分类号: F01D1124

    摘要: An arrangement for adjusting the diameter of a gas turbine stator includes a casing having a main portion and rings bordering a vein of a gas flow and located in front of respective levels of mobile blades of a rotor, and communication passages of a gas flow under pressure. The rings are surrounded by the casing and fixed thereto by circular groups of spacers. The rings include a wall extending from the casing to one of the rings and separating two chambers. The wall includes an outside edge curved into a spacer hook and engaged between the main portion of the casing and a respective appendage curved into a casing hook associated with the spacer hook. The communication passages of the gas flow under pressure exist between the chambers. At least one of the communication passages is realized by cavities through a junction of hooks.

    摘要翻译: 用于调节燃气轮机定子的直径的装置包括壳体,壳体具有与气流的静脉接合的主要部分和环,并且位于转子的相应水平的可动叶片的前方,以及压力下的气体流动的连通通道 。 环被壳体包围并通过圆形的间隔件组固定。 环包括从壳体延伸到其中一个环并分离两个室的壁。 壁包括弯曲成间隔钩的外边缘,并且接合在壳体的主要部分和弯曲成与间隔钩相关联的壳体钩的相应附件中。 在室之间存在压力气流的连通通道。 连通通道中的至少一个通过空穴通过钩的连接件实现。