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    • 8. 发明公开
    • Seal assembly for an intershaft seal in a gas turbine engine
    • Zwischenwellen-Dichtungsanordnungfürein Gasturbinentriebwerk
    • EP1010926A2
    • 2000-06-21
    • EP99309231.1
    • 1999-11-19
    • UNITED TECHNOLOGIES CORPORATION
    • Sheridan, William G.Shaffer, Harold K.
    • F16J15/34
    • F16J15/3484F01D11/003F02C7/28F16J15/3464F16J15/3472
    • A seal assembly 134 for use in an intershaft seal includes a first seal 136 that seals to a seal plate on an inner rotor shaft 40, a second seal 138 that seals to a seal plate on an outer rotor shaft 42, and an intermediate seal that is supported by a stator assembly 36 and seals to the first seal 134 and the second seal 136. The intermediate seal may include a seal segment 200 affixed to the stator assembly, a ring seal between the seal segment 200 and the first seal 136, and a ring seal between the seal segment 200 and the second seal 138. An intershaft seal with this seal assembly has less flex than a prior art intershaft seal and thereby results in greater durability and less seal wear.
    • 用于轴间密封件的密封组件134包括密封在内转子轴40上的密封板的第一密封件136,密封到外转子轴42上的密封板的第二密封件138和中间密封件 由定子组件36支撑并且密封到第一密封件134和第二密封件136.中间密封件可以包括固定到定子组件的密封段200,密封段200和第一密封件136之间的环形密封件,以及 在密封段200和第二密封件138之间的环形密封。与该密封组件的轴间密封件比现有技术的轴向间密封件具有更小的挠曲,从而导致更大的耐用性和更小的密封磨损。