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11. 发明授权

US5257906A Exhaust system for a turbomachine 失效
标题翻译：涡轮机的排气系统
公开(公告)号：US5257906A
公开(公告)日：1993-11-02
申请号：US906343
申请日：1992-06-30
申请人： Lewis Gray , Douglas C. Hofer , Susan M. Kron , Robert C. Wynn
发明人： Lewis Gray , Douglas C. Hofer , Susan M. Kron , Robert C. Wynn
IPC分类号： F01D9/00 , F01D25/30 , F02C7/00
CPC分类号： F01D25/30
摘要： An exhaust system for an axial flow turbomachine is provided having a diffuser that directs the flow of working fluid from a turbine exit to an exhaust housing having a bottom opening, thereby turning the flow 90.degree. from the axial to radial direction. In the exhaust housing, the flow exiting at the top of the diffuser turns 180.degree. from the vertically upward direction to the downward direction. The strength of the vortex formed in the exhaust housing as a result of this turning is minimized by orienting the outlet of an outer exhaust flow guide portion of the diffuser so that it lies in a plane that makes an angle with a plane perpendicular to the turbine axis. As a result, the minimum axial length of the outer flow guide occurs at a location remote from the exhaust housing outlet and the maximum axial length occurs at a location proximate the opening, thereby crowding the vortex against a radially extending baffle in the exhaust housing.
摘要翻译：提供了一种用于轴流式涡轮机的排气系统，其具有将工作流体从涡轮机出口引导到具有底部开口的排气壳体的扩散器，从而将流动从轴向转动到径向90度。在排气罩中，从扩散器顶部流出的流向垂直向上方向转动180度。通过使扩散器的外部排气流引导部分的出口定向使其位于与垂直于涡轮机的平面成一定角度的平面中，使得由于该转动而形成在排气壳体中的涡流的强度被最小化轴。结果，外部流动引导件的最小轴向长度发生在远离排气壳体出口的位置处，并且最大轴向长度发生在靠近开口的位置处，从而将涡流挤压在排气壳体中的径向延伸的挡板上。

12. 发明授权

US5181308A Method for installing annular seals 失效
标题翻译：安装环形密封件的方法
公开(公告)号：US5181308A
公开(公告)日：1993-01-26
申请号：US733523
申请日：1991-07-22
申请人： Lewis Gray , Joseph L. Garbarino , John S. Micol , Johnny W. Crenshaw , Vincent M. Iacono , James C. Barley , Richard L. Hollen , Terry M. Graziani
发明人： Lewis Gray , Joseph L. Garbarino , John S. Micol , Johnny W. Crenshaw , Vincent M. Iacono , James C. Barley , Richard L. Hollen , Terry M. Graziani
IPC分类号： F01D11/08 , F01D11/02 , F02C7/28 , F16J15/00 , F16J15/44
CPC分类号： F01D11/025 , F16J15/442 , Y10T29/49233 , Y10T29/49234 , Y10T29/49297 , Y10T29/4932 , Y10T29/49844 , Y10T409/50082
摘要： A method of installing a seal having a sealing surface in a defined operating position in a rotating machine composed of a stationary part which carries the seal and a rotary part mounted to rotate about an axis of rotation and having a cylindrical surface located to rotate adjacent, and in close proximity, to the sealing surface, which method includes: installing the seal on the stationary part in a position corresponding to the defined operating position so that the seal is immovable relative to the stationary part; machining the sealing surface to a desired final dimension by mounting a machine tool to rotate about the axis of rotation and rotating the tool about that axis; withdrawing the tool; and modifying the installation of the seal so that the seal is supported in the defined operating position so as to be resiliently movable relative to the stationary part.
摘要翻译：一种在具有密封面的密封面上设置密封面的方法，所述密封面由旋转机械构成，所述旋转机械由承载所述密封件的固定部件和旋转部件组成，所述旋转部件安装成围绕旋转轴线旋转并且具有邻近旋转的圆柱形表面，并且靠近密封表面，该方法包括：将密封件安装在与限定的操作位置相对应的位置处的固定部件上，使得密封件相对于固定部件不可移动; 通过安装机床绕着旋转轴线旋转并围绕该轴线旋转工具来将密封表面加工成所需的最终尺寸; 退出工具以及修改密封件的安装，使得密封件被支撑在限定的操作位置，以便相对于固定部件可弹性移动。

13. 发明申请

US20070117736A1 Sprayable high viscosity thixotropic surface cleaners 审中-公开
标题翻译：可喷涂高粘度触变性表面清洁剂
公开(公告)号：US20070117736A1
公开(公告)日：2007-05-24
申请号：US11285343
申请日：2005-11-22
申请人： David Figger , Lewis Gray
发明人： David Figger , Lewis Gray
IPC分类号： C11D17/08
CPC分类号： C11D17/003 , C11D3/2003 , C11D3/2068 , C11D3/3765 , C11D3/43 , C11D11/0035
摘要： A family of sprayable, high viscosity thixotropic surface cleaners which include (i) a thickening agent present in a sufficient amount to impart a viscosity of at least 6,000 cP at standard temperature and pressure when the cleaners are in a rest state; (ii) an aqueous solvent system including water and at least one miscible organic solvent; (iii) a sufficient amount of a thickening agent compatible surfactant; and (iv) sufficient base to provide a pH range to the cleaners ranging from about 5 to about 10. The family of surface cleaners become finely divided fluids when dispensed under high flow or high shear conditions from a sprayer and undergo transformation to semisolid states after dispensing.
摘要翻译：一种可喷雾，高粘度的触变性表面清洁剂，其包括（i）当清洁剂处于静止状态时，以足够量的标准温度和压力赋予至少6,000cP的粘度的增稠剂; （ii）包含水和至少一种可混溶的有机溶剂的水性溶剂体系; （iii）足量的增稠剂相容的表面活性剂; 和（iv）足够的碱以向清洁剂提供范围为约5至约10的pH范围。当在高流量或高剪切条件下从喷雾器分配时，表面清洁剂系列变成细分散的流体，并在经过转化为半固态后转化为半固态点胶

14. 发明授权

US07004475B2 Flow dam design for labyrinth seals to promote rotor stability 有权
标题翻译：用于迷宫密封件的流动坝设计，以促进转子稳定性
公开(公告)号：US07004475B2
公开(公告)日：2006-02-28
申请号：US10672192
申请日：2003-09-26
申请人： Matthew J. McHale , Lewis Gray
发明人： Matthew J. McHale , Lewis Gray
IPC分类号： F16J15/44 , F16J15/447 , F04D29/66 , F04D29/08
CPC分类号： F16J15/442
摘要： A method and apparatus for reducing steam swirl in a steam turbine. A plurality of seal segments (14) are circumferentially juxtaposed to form a seal ring (12) encircling the turbine shaft (10), each seal segment (14) supporting a plurality of circumferentially disposed annular seal fins (20) to limit axial steam flow along the shaft (10). A plurality of flow dams (40) are disposed within grooves (42) defined in the plurality of seal fins (20) and seal segments (14) for limiting circumferential steam flow and thereby reducing rotor instability.
摘要翻译：一种用于减少蒸汽轮机中的蒸汽涡流的方法和装置。多个密封段（14）周向并置以形成围绕涡轮轴（10）的密封环（12），每个密封段（14）支撑多个周向设置的环形密封翅片（20），以限制轴向蒸汽流沿轴（10）。在多个密封翅片（20）和密封段（14）中限定的凹槽（42）内设置有多个流动阻挡件（40），用于限制圆周蒸汽流动，从而减少转子的不稳定性。

15. 发明授权

US5518366A Exhaust system for a turbomachine 失效
标题翻译：涡轮机的排气系统
公开(公告)号：US5518366A
公开(公告)日：1996-05-21
申请号：US259096
申请日：1994-06-13
申请人： Lewis Gray
发明人： Lewis Gray
IPC分类号： F01D25/30 , F04D29/54
CPC分类号： F04D29/541 , F01D25/30
摘要： An exhaust system for an axial flow turbomachine having a diffuser comprised of inner and outer flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening, thereby turning the flow 90.degree. from the axial to radial direction. The flow exiting at the top of the diffuser is directed by a flow-guiding surface of the exhaust housing to turn 180.degree. from the vertically upward direction to the downward direction. The axial length of the outer flow varies around the circumference thereof as a function of the distance from the flow-guiding surface of the exhaust housing to the inlet of the outer flow guide so that the axial length of the outer flow guide is less than 30% of the height of the last row blade airfoil throughout any portions of the outer flow guide in which the distance from the flow-guiding surface to the outer flow guide inlet is less than the height of the airfoil.
摘要翻译：一种用于轴流式涡轮机的排气系统，具有扩散器，该扩散器包括内部和外部流动引导件，其将工作流体从涡轮机气缸的流动引导到具有底部开口的排气壳体，从而将流动从轴向向径向转动90° 。在扩散器顶部流出的流动由排气壳体的导流表面引导，从垂直向上的方向向下旋转180度。外流体的轴向长度作为从排气壳体的流动引导表面到外部流动引导件的入口的距离的周长围绕其圆周变化，使得外部流动引导件的轴向长度小于30 在外流动引导件的任何部分的最后一个叶片翼型件的高度的百分比，其中从导流表面到外部流动引导入口的距离小于翼型件的高度。

16. 发明授权

US5494405A Method of modifying a steam turbine 失效
标题翻译：修改蒸汽轮机的方法
公开(公告)号：US5494405A
公开(公告)日：1996-02-27
申请号：US407204
申请日：1995-03-20
申请人： Lewis Gray , John C. Groenendaal, Jr.
发明人： Lewis Gray , John C. Groenendaal, Jr.
IPC分类号： F01D25/32 , F01D25/24
CPC分类号： F01D25/32
摘要： A steam turbine having improved stationary parts in which a moisture removal slot is formed in a blade ring cylinder immediately upstream of the last row of rotating blades. The slot has a reduced width inlet throat portion and an enlarged manifold portion. The manifold portion of the slot distributes the moisture collected to a plurality of radially oriented discharge holes formed in the blade ring. The inlet throat serves to insolate the manifold from the swirling steam flowing through the turbine, thereby preventing entrainment of the moisture droplets into the steam flow. The blade ring encircles the tips of the last row of rotating blades and the outer flow guide is integrally formed on the blade ring. The steam turbine also has a new inner flow guide that matches a new last row of rotating blades. The new inner flow guide is attached to the existing inner flow guide by welds.
摘要翻译：具有改进的静止部件的汽轮机，其中在最后一排旋转叶片的上游的叶片环筒中形成除湿槽。狭槽具有减小的入口喉部部分和扩大的歧管部分。槽的歧管部分将收集的湿气分配到形成在叶片环中的多个径向定向的排出孔。入口喉部用于使歧管从流过涡轮机的旋转蒸汽中取出，从而防止水滴夹带到蒸汽流中。叶片环围绕最后一排旋转叶片的尖端，并且外部流动引导件一体地形成在叶片环上。蒸汽轮机还具有与新的最后一排旋转叶片匹配的新的内部流动引导件。新的内部流动引导件通过焊接连接到现有的内部流动引导件。

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