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    • 2. 发明公开
    • 불노우즈형 밀봉 터빈 스테이지
    • BULLNOSE密封涡轮舞台
    • KR1020080057183A
    • 2008-06-24
    • KR1020070133440
    • 2007-12-18
    • 제너럴 일렉트릭 캄파니
    • 클라싱케빈사무엘리칭-팡헌터스코트데이비드
    • F01D9/02F01D5/14F01D11/08F01D5/20
    • F01D5/145F01D5/082F01D5/143F01D9/041F01D11/001F05D2250/19Y02T50/673Y02T50/676
    • A bullnose type seal turbine stage is provided to raise the turbine efficiency by using a rotary sealing section interposed between a stator nozzle and a rotor blade. A bullnose type seal turbine stage comprises an annular stator nozzle(40) and blades(52). The annular stator nozzle includes vanes(42) mounted between an internal band(44) and an external band(46). The internal band has a mounting flange(48) extending radially inward from the internal band. The blades are mounted around a rotor disk(54), and are spaced apart from the mounting flange to form a front cavity(56) for guiding purge air. Each blade includes an internal platform(58) adjacent to the internal band in a rotary sealing section(60) disposed at the upper end of the front cavity in order to discharge the purge air. The internal band includes a stator bullnose at the rear edge thereof to reduce aerodynamic loss in cooperation with the rotary sealing section.
    • 提供了一种公牛型密封涡轮级,通过使用插入在定子喷嘴和转子叶片之间的旋转密封部来提高涡轮效率。 长颈型密封涡轮级包括环形定子喷嘴(40)和叶片(52)。 环形定子喷嘴包括安装在内部带(44)和外部带(46)之间的叶片(42)。 内部带具有从内部带径向向内延伸的安装凸缘(48)。 叶片围绕转子盘(54)安装并且与安装凸缘间隔开以形成用于引导吹扫空气的前腔(56)。 每个叶片包括在设置在前腔的上端处的旋转密封部分(60)中与内部带相邻的内部平台(58),以便排出吹扫空气。 内带在其后缘包括一个定子,以减少与旋转密封部分配合的气动损失。
    • 3. 发明公开
    • 가변 노즐 기구
    • 可变的喷嘴机构
    • KR1020100021528A
    • 2010-02-24
    • KR1020107001191
    • 2008-10-02
    • 미츠비시 쥬고교 가부시키가이샤
    • 하야시노리유키진나이야스아키스즈키히로시이시이유키
    • F01D17/16F02B37/24
    • F01D17/165F05D2220/40F05D2250/182F05D2250/19F05D2260/30F05D2260/56
    • When rotating a drive ring for changing a nozzle blade angle, a contact load occurring between an inner peripheral face of the drive ring and an outer peripheral face of a mount can be reduced. Consequently, the drive ring can smoothly be rotated, so that an abrasion and drive force can be reduced. Impact force, which occurs in the drive ring at the action of an external force such as engine vibration, is reduced, and risk of breakage is reduced. A plurality of notch parts (19) is formed at an inner peripheral edge part of the drive ring (14) along a circumferential direction. The contact load between the outer peripheral face of the mount and inner peripheral faces (14e, 14f, 14g and 14h) among the inner peripheral faces (14a, 14b, 14c, 14d, 14e, 14f, 14g and 14h) positioned between the notch part (19) and the notch part (19) becomes larger when drive force for rotating the drive ring (14) is input. Inner diameters of the inner peripheral faces (14e, 14f, 14g and 14h) are formed larger than the outer diameter of the outer peripheral face.
    • 当旋转用于改变喷嘴叶片角度的驱动环时,可以减小在驱动环的内周面和安装件的外周面之间发生的接触负载。 因此,驱动环能够平稳地旋转,从而可以减少磨损和驱动力。 在诸如发动机振动等外力作用下在驱动环中发生的冲击力降低,并且破损的风险降低。 沿着圆周方向在驱动环(14)的内周缘部形成有多个切口部(19)。 在内周面(14a,14b,14c,14d,14e,14f,14g和14h)内的内周面(14e,14f,14g,14h)的内周面(14e,14f,14g,14h) 当输入用于旋转驱动环(14)的驱动力时,部件(19)和切口部分(19)变大。 内周面(14e,14f,14g,14h)的内径形成为比外周面的外径大。