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    • 5. 发明申请
    • RAM AIR TURBINE
    • RAM空气涡轮机
    • US20120301290A1
    • 2012-11-29
    • US13114603
    • 2011-05-24
    • John F. Justak
    • John F. Justak
    • F04D29/44
    • B64D41/007F03D1/04F03D9/00F03D9/25F03D9/32F03D15/20F03D80/70F03D80/82F05B2220/31Y02E10/72
    • A ram air turbine comprises a turbine housing which mounts a number of circumferentially spaced turbine blades that function predominantly as impulse turbine blades and a number of splitters, each located in between adjacent turbine blades, which function predominantly as a reaction turbine blade but are shorter in length than the turbine blades. The cross section of the turbine housing decreases between its forward and aft ends while the height of both the turbine blades and splitters increases in the same direction such that the tips of the turbine blades and splitters collectively form a substantially cylindrical shape.
    • 压头空气涡轮机包括涡轮机壳体,其安装多个周向间隔开的涡轮机叶片,其主要作用为脉冲涡轮机叶片和多个分离器,每个分配器位于相邻的涡轮机叶片之间,其主要用作反应涡轮机叶片,但是较短 长度比涡轮叶片。 涡轮机壳体的横截面在其前端和后端之间减小,同时涡轮机叶片和分离器的高度在相同方向上增加,使得涡轮机叶片和分离器的尖端共同形成大致圆柱形的形状。
    • 6. 发明授权
    • Non-contact seal for a gas turbine engine
    • 燃气轮机的非接触式密封
    • US08172232B2
    • 2012-05-08
    • US12132869
    • 2008-06-04
    • John F. Justak
    • John F. Justak
    • F16J15/44
    • F16J15/442F01D11/025
    • A seal comprises the combination of a primary seal and a secondary seal each of which acts on at least one shoe that is installed with clearance relative to one of a rotor and a stator in a position to create a non-contact seal therewith. The at least one shoe is provided with a surface geometry and labyrinth-type teeth that influence the inertia of fluid flowing across the seal, and, hence, the velocity of the fluid and the pressure distribution across the seal, ultimately affecting the balance of forces applied to the seal.
    • 密封件包括主密封件和次级密封件的组合,每个密封件和辅助密封件作用在至少一个鞋身上,该靴子相对于转子和定子之一安装有间隙,以与其形成非接触密封。 所述至少一个鞋子具有影响流过所述密封件的流体惯性的表面几何形状和迷宫型齿,并且因此影响流体的速度和穿过密封件的压力分布,最终影响力的平衡 适用于印章。
    • 9. 发明授权
    • Robust hydrodynamic brush seal
    • 坚固的流体动力刷密封
    • US06428009B2
    • 2002-08-06
    • US09819585
    • 2001-03-28
    • John F. Justak
    • John F. Justak
    • F16J1544
    • F16J15/3288F16J15/442
    • A brush seal for sealing a circumferential gap between two relatively rotating machine components, e.g. the rotor or shaft and stator of a fluid flow machine, such as a gas turbine engine. One end of a plurality of seal bristles is fixed in an annular shape and are mounted to the stator, and their opposite ends are attached to a number of individual shoes located at the rotor. The shoes function very similarly to that of a tilting pad bearing shoe. Prior to shaft rotation, the shoes are in contact with the rotor surface with preferably the leading edge of each shoe set to have less contact than the trailing edge of the shoe. As such, when the rotor begins to rotate, a hydrodynamic wedge is created which lifts the shoe slightly off the surface of the shaft allowing the shoe to effectively “float” over the shaft at a design gap.
    • 用于密封两个相对旋转的机器部件之间的周向间隙的刷密封件,例如。 流体流动机器的转子或轴和定子,例如燃气涡轮发动机。 多个密封刷毛的一端被固定成环形,并且安装到定子上,并且它们的相对端附接到位于转子处的多个单独的鞋。 该鞋的功能与倾斜垫轴承鞋的功能非常相似。 在轴旋转之前,鞋与转子表面接触,优选地,每个鞋组的前缘具有比鞋的后缘更少的接触。 因此,当转子开始旋转时,产生流体动力楔,其将鞋稍微离开轴的表面,允许鞋在设计间隙处有效地“浮动”在轴上。