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    • 3. 发明授权
    • Aspirating face seal with axially extending seal teeth
    • 带轴向延伸密封牙齿的吸气面密封
    • US06676369B2
    • 2004-01-13
    • US10106401
    • 2002-03-26
    • John C. BrauerChristopher C. GlynnRobert J. Albers
    • John C. BrauerChristopher C. GlynnRobert J. Albers
    • F01D1102
    • F16J15/442F01D11/025
    • A gas turbine engine aspirating face seal includes a rotatable engine member and a non-rotatable engine member and a leakage path therebetween. Annular generally planar rotatable and non-rotatable gas bearing face surfaces circumscribed about a centerline are operably associated the rotatable and non-rotatable engine members respectively. Radially inner and outer tooth rings axially extend away from a first one of the rotatable and non-rotatable gas bearing face surfaces across the leakage path and towards a second one of the gas bearing face surfaces. A pull off biasing means is used for urging the inner and outer tooth rings axially away from the second one of the gas bearing face surfaces. The rotatable engine member may be a side plate mounted on a rotor disk and the non-rotatable engine member is mounted on a translatable piston axially movably supported on a stationary face seal support structure.
    • 燃气涡轮发动机抽吸面密封件包括可旋转的发动机构件和不可旋转的发动机构件以及它们之间的泄漏路径。 围绕中心线环绕的环形大致平面的可旋转和不可旋转的气体支承面表面分别可操作地与可旋转和不可旋转的发动机构件相关联。 径向内齿和外齿环沿穿过泄漏路径并朝着气体支承面表面中的第二个轴向延伸远离可旋转和不可旋转的气体支承面表面中的第一个。 使用拉脱偏压装置来推动内齿轮和外齿环轴向远离第二气体支承面表面。 可旋转的发动机构件可以是安装在转子盘上的侧板,并且不可旋转的发动机构件安装在可移动地支撑在固定面密封支撑结构上的可平移活塞上。
    • 4. 发明授权
    • Rotating seal
    • 旋转密封
    • US06471216B1
    • 2002-10-29
    • US09317244
    • 1999-05-24
    • Gulcharan S. BrainchJohn C. Brauer
    • Gulcharan S. BrainchJohn C. Brauer
    • F16J15447
    • F01D11/02
    • Overall performance in enhanced in gas turbine engines by providing a rotating seal including a rotating member arranged to rotate about an axis and having at least one annular projection extending radially outwardly therefrom, and a stator element having a first surface arranged to contact the projection. The stator element includes at least one slot formed in the first surface, the slot axially traversing the projection so as to allow a flow of purge air to pass. More than one such slot can be used, and each slot is preferably angled circumferentially in the direction of rotation of the rotating member.
    • 通过提供旋转密封件来提高燃气涡轮发动机的整体性能,所述旋转密封件包括旋转部件,所述旋转部件布置成围绕轴线旋转并且具有至少一个从其径向向外延伸的环形突起,以及具有布置成接触突起的第一表面的定子元件。 定子元件包括形成在第一表面中的至少一个槽,轴向穿过突出部,以允许净化空气流通过。 可以使用多于一个这样的槽,并且每个槽优选地在旋转构件的旋转方向上圆周地成角度。
    • 6. 发明授权
    • Aspirating face seal with axially biasing one piece annular spring
    • 吸气面密封,轴向偏置一片环形弹簧
    • US06758477B2
    • 2004-07-06
    • US10106759
    • 2002-03-26
    • John C. BrauerRobert J. Albers
    • John C. BrauerRobert J. Albers
    • F01D1102
    • F16J15/164F01D11/02F05D2240/55F05D2240/70F16J15/3452F16J15/4476
    • A gas turbine engine aspirating face seal includes rotatable and non-rotatable engine members and a leakage path therebetween. Annular generally planar rotatable and non-rotatable gas bearing face surfaces are operably associated with the rotatable and non-rotatable engine members respectively and are circumscribed about and generally perpendicular to a centerline axis. A substantially fully annular pull off biasing element is operably disposed for urging the non-rotatable gas bearing face surface axially away from the rotatable gas bearing face surface and circumscribed about the centerline axis. The pull off biasing element may be at least one wave spring or one bellville washer. The non-rotatable gas bearing face surface may be on a face seal ring mounted on a translatable cylindrical piston which is axially movable and supported by the non-rotatable engine member.
    • 燃气涡轮发动机抽吸面密封件包括可旋转和不可旋转的发动机构件和它们之间的泄漏路径。 环形大体上平面的可旋转和不可旋转的气体支承面表面分别可操作地与可旋转和不可旋转的发动机构件相关联,并且围绕中心线轴线并且大致垂直于中心线轴线。 可操作地设置基本上完全环形的拉脱偏置元件,以便使不可旋转的气体支承面表面轴向地远离可旋转的气体支承面表面并围绕中心线轴线限定。 拉脱偏置元件可以是至少一个波形弹簧或一个贝尔维尔洗衣机。 不可旋转的气体支承面表面可以在安装在可平移的圆柱形活塞上的面密封环上,其可轴向移动并由不可旋转的发动机构件支撑。
    • 9. 发明授权
    • Reduced windage high pressure turbine forward outer seal
    • 降低风挡高压汽轮机正向外密封
    • US5984630A
    • 1999-11-16
    • US997833
    • 1997-12-24
    • David A. Di SalleRobert ProctorEdward P. BrillSteven A. RossRobert J. AlbersJohn C. BrauerGulcharan S. BrainchDean T. Lenahan
    • David A. Di SalleRobert ProctorEdward P. BrillSteven A. RossRobert J. AlbersJohn C. BrauerGulcharan S. BrainchDean T. Lenahan
    • F01D5/08F01D11/02F01D11/04F02C7/18F03B11/00
    • F01D11/02F01D11/04
    • A blocker and swirl inducer hole configuration for use in connection with a high pressure turbine is described. In one embodiment, the blocker holes are oriented to a 45-degree tangential angle with respect to the direction of rotation of the seal, which results in pre-swirling the air before being injected into the swirl cavity. In addition, the number of blocker holes is reduced by as much as 50% of the number of blocker holes used in the known CFM56 turbine. Further, rather than injecting the air into the first swirl cavity as is known, the air is injected into a second swirl cavity. The combined effect of orienting the holes to the 45-degree tangential angle with respect to the direction of rotation of the seal, locating the holes to open into the second swirl cavity, and reducing the flow area by about 50%, results in an increase in blocker hole pressure ratio. Increasing the blocker hole pressure ratio results in a higher hole exit velocity which maximizes the cavity inlet swirl. The blocker holes therefore not only provide back-pressure, but also function as swirl-inducers. By inducing swirl into the air injected into the second swirl cavity, better turbine disk rim cooling effectiveness is provided. This result facilitates maintaining reasonable metal temperatures at increasingly severe cycle conditions without the normally expected engine performance penalties.
    • 描述了与高压涡轮机相关联使用的阻塞器和涡流诱导器孔构造。 在一个实施例中,阻挡孔相对于密封件的旋转方向被定向成45度的切向角,这导致在注入到涡流腔内之前预先旋转空气。 此外,阻塞孔的数量减少了已知CFM56涡轮机中使用的阻塞孔数量的多达50%。 此外,如已知的那样,不是将空气注入到第一涡流腔中,所以空气被注入到第二涡流腔中。 相对于密封件的旋转方向将孔定向到45度切向角的组合效果,将孔定位到第二涡流腔中,并将流动面积减少约50%,导致增加 阻塞孔压力比。 增加阻塞孔压力比导致更高的孔出口速度,这使空腔入口涡流最大化。 因此,阻挡孔不仅提供背压,而且还起到旋流诱发器的作用。 通过在注入到第二涡流腔中的空气中引起漩涡,提供更好的涡轮盘边缘冷却效果。 该结果有助于在越来越严格的循环条件下保持合理的金属温度,而不会发生通常预期的发动机性能