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    • 1. 发明公开
    • COOLING FEATURE FOR A TURBINE COMPONENT
    • KÜHLELEMENTFÜREINE TURBINENKOMPONENTE
    • EP3045667A1
    • 2016-07-20
    • EP15199999.2
    • 2015-12-15
    • Rolls-Royce Corporation
    • Weaver, John A.Lamusga, Joseph P.
    • F01D9/06F01D11/08F01D25/12
    • F01D25/12F01D11/08F01D11/24F01D25/246F05D2240/11F05D2240/57F05D2260/201F05D2300/6033Y02T50/672Y02T50/676
    • A turbine (18) and a component of a turbine (18), comprising: a seal ring segment (52) including an inner surface having a track for a turbine blade defined therein and a target surface for impingement cooling positioned opposite the inner surface of the seal ring segment (52), a carrier segment (50) positioned radially outward from the seal ring (52), the carrier segment (50) including an impingement hole (120) that extends through an outer surface (138) of the carrier segment (50) and an inner surface (124) positioned opposite the outer surface (138), the inner surface (124) of the carrier segment (50) being spaced apart from and facing the target surface of the seal ring segment (52), and a source of positive pressure to move air through the impingement hole (120) into contact with the target surface of the seal ring (52), wherein the impingement hole (120) includes (i) an outer opening (140) defined in the outer surface (138) and a first inner wall extending inwardly from the outer opening (140) to define a first passageway having a first diameter, and (ii) an inner opening (142) defined in the inner surface (124) and a second inner wall extending inwardly from the inner opening to define a second passageway that is connected to the first passageway and has a second diameter that is greater than the first diameter.
    • 一种涡轮机(18)和涡轮机(18)的部件,包括:密封环段(52),其包括内表面,所述内表面具有限定在其中的涡轮机叶片的轨道和用于冲击冷却的目标表面, 所述密封环段(52),从所述密封环(52)径向向外定位的载体段(50),所述载体段(50)包括冲击孔(120),所述冲击孔延伸穿过所述载体的外表面(138) (50)和与外表面(138)相对定位的内表面(124),承载部分(50)的内表面(124)与密封环段(52)的目标表面间隔开并面对密封环段(52)的目标表面, 以及将空气通过冲击孔(120)与密封环(52)的目标表面接触的正压力源,其中冲击孔(120)包括(i)限定在 外表面(138)和从外部向内延伸的第一内壁 开口(140)以限定具有第一直径的第一通道,和(ii)限定在内表面(124)中的内部开口(142)和从内部开口向内延伸的第二内壁,以限定第二通道 连接到第一通道并且具有大于第一直径的第二直径。