公开(公告)号：WO2008036074A3

公开(公告)日：2008-08-07

申请号：PCT/US2006030539

申请日：2006-08-03

Applicant: GEN ELECTRIC ,  HSU MING FENG ,  VARANASI KRIPA KIRAN ,  BHATE NITIN ,  O'NEIL GREGORY ALLEN ,  STEIN JUDITH ,  DENG TAO ,  OKUYAMA SHANNON MAILE ,  TURNQUIST NORMAN ARNOLD ,  BRUN MILIVOJ KONSTATIN ,  GHASRIPOOR FARSHAD ,  KRISHNAN KASIRAMAN ,  KEIMEL CHRISTOPHER FRED

Inventor： HSU MING FENG ,  VARANASI KRIPA KIRAN ,  BHATE NITIN ,  O'NEIL GREGORY ALLEN ,  STEIN JUDITH ,  DENG TAO ,  OKUYAMA SHANNON MAILE ,  TURNQUIST NORMAN ARNOLD ,  BRUN MILIVOJ KONSTATIN ,  GHASRIPOOR FARSHAD ,  KRISHNAN KASIRAMAN ,  KEIMEL CHRISTOPHER FRED

IPC: F15D1/12

CPC classification number: B05D5/08 ,  B05D5/083 ,  B08B17/06 ,  B08B17/065 ,  B64C21/10 ,  B64C2230/26 ,  C23C8/02 ,  C23C8/38 ,  C23C8/80 ,  C25D11/04 ,  F15D1/10 ,  Y02T50/166 ,  Y10T428/24355

Abstract: An article having low wettability is presented. The article comprises a body portion and a surface portion disposed on the body portion. The surface portion comprises a plurality of features disposed on the body portion, and the features have a size, shape, and orientation selected such that the surface portion has a wettability sufficient to generate, with a reference liquid, a contact angle of at least about 100 degrees. The features comprise a height dimension (h) and a width dimension (a), and are disposed in a spaced-apart relationship characterized by a spacing dimension (b). The ratio of b/a and the ratio of h/a are such that the drop exhibits metastable non- Wenzel behavior.

Abstract translation: 提出了一种具有低润湿性的物品。 该物品包括主体部分和设置在主体部分上的表面部分。 表面部分包括设置在主体部分上的多个特征，并且特征具有选择的尺寸，形状和方向，使得表面部分具有足够的润湿性，足以产生与参考液体至少约 100度。 特征包括高度尺寸（h）和宽度尺寸（a），并且以间隔尺寸（b）为特征的间隔关系设置。 b / a和h / a的比例使得下降显示亚稳态非Wenzel行为。

公开(公告)号：CA2509743C

公开(公告)日：2012-07-24

申请号：CA2509743

申请日：2005-06-09

Applicant: GEN ELECTRIC

Inventor： WELLS THOMAS ALLEN ,  NOE MARK EUGENE ,  BULMAN DAVID EDWARD ,  BHATE NITIN

IPC: F01D9/02 ,  F01D9/00 ,  F01D9/04 ,  F01D11/00 ,  F16J15/08

Abstract: A collar seal (34) is configured for a turbine nozzle vane (32). The seal (34) includes a retainer (36) having a circumferential airfoil contour conforming with the airfoil contour of the vane (32). A flexible leaf (48) is surrounded by the retainer (36) and fixedly joined thereto. A woven sheath (50) encases the leaf (48) and is fixedly joined to the retainer (36). In an exemplary embodiment, the collar seal (34) surrounds one end of a ceramic turbine vane (32) mounted in a metal supporting band (26),(28).

公开(公告)号：FR2931086A1

公开(公告)日：2009-11-20

申请号：FR0953104

申请日：2009-05-11

Applicant: GEN ELECTRIC

Inventor： VARANASI KRIPA KIRAN ,  BHATE NITIN ,  GOLDMEER JEFFREY SCOTT ,  MYERS GEOFFRAY DAVID

IPC: B05B1/02 ,  C23C26/00

Abstract: Un atomiseur (12), comprend une région de pré-pelliculisation, et une partie de lèvre (29, 71, 67) disposée à une extrémité de la région de pré-pelliculisation et configurée pour créer des instabilités hydrodynamiques dans un film de liquide, dans lequel la partie de lèvre comprend un motif alterné de surfaces de mouillage et d'absence de mouillage, dans lequel la surface d'absence de mouillage fait un angle de contact supérieur à 90 degrés par rapport au liquide et la surface de mouillage fait un angle de contact inférieur à 90 degrés par rapport au liquide.

公开(公告)号：FR2930735A1

公开(公告)日：2009-11-06

申请号：FR0952304

申请日：2009-04-08

Applicant: GEN ELECTRIC

Inventor： VARANASI KRIPA KIRAN ,  BHATE NITIN ,  GOLDMEER JEFFREY SCOTT ,  MYERS GEOFFRAY DAVID

IPC: B08B17/06 ,  C10G75/00

Abstract: Procédé pour empêcher la formation de dépôts thermiques par dégradation d'hydrocarbures sur une surface d'une pièce (100) de turbine à gaz, le procédé comprenant la réalisation de la pièce (100) de turbine comprenant la surface (120) conçue pour se trouver au contact d'un fluide hydrocarboné, le substrat étant constitué d'une matière à mouillabilité nominale par les liquides suffisante pour générer, par rapport à une huile, un angle nominal de contact (140) ; disposer une pluralité de reliefs (160) sur le substrat pour former une texture de surface anti-déposition, la pluralité de reliefs ayant des dimensions, une forme et une orientation choisies de façon que la surface ait une mouillabilité effective suffisante pour générer, par rapport à une huile, un angle de contact effectif supérieur à l'angle nominal de contact ; et les reliefs ont une dimension de largeur (a) (220) et une dimension d'espacement (b) (240), les reliefs empêchant le fluide hydrocarboné de pénétrer dans la texture de surface et réduisant de ce fait l'adhérence des dépôts thermiques d'hydrocarbures sur la surface.

公开(公告)号：DE102007061570A1

公开(公告)日：2008-07-31

申请号：DE102007061570

申请日：2007-12-18

Applicant: GEN ELECTRIC

Inventor： VARANASI KRIPA KIRAN ,  BHATE NITIN ,  HSU MING FENG ,  PETER ANDREW MAXWELL ,  DENG TAO ,  O'NEIL GREGORY ALLEN ,  STEIN JUDITH

IPC: G21C3/08 ,  G01N13/02

Abstract: The article has element including surface contacting the liquid to-be-converted into steam. The surface of element includes several surface features (120). The element surface is included with material to contact the liquid. An independent claim is included for fuel rod for nuclear furnace.

公开(公告)号：CA2680495A1

公开(公告)日：2010-04-03

申请号：CA2680495

申请日：2009-09-24

Applicant: GEN ELECTRIC

Inventor： VARANASI KRIPA KIRAN ,  BHATE NITIN ,  CARROLL MICHAEL DAVID ,  GHASRIPOOR FARSHAD ,  KULKARNI AMBARISH JAYANT ,  ROSENZWEIG LARRY STEVEN ,  SCHELL JERRY DONALD ,  ZHONG DALONG

IPC: C23C14/06 ,  C23C14/30 ,  C23C14/35

Abstract: A turbine engine component (10) includes at least one treated surface (14) wherein the treated surface has a surface roughness (Ra) of less than 12 microinches; and a hard coating (16) disposed on the treated surface, wherein the hard coating (16) is a nitride and/or a carbide material at a thickness of less than 50 microns formed using electron beam physical vapor deposition, cathodic arc evaporation, or magnetron sputtering. Also disclosed are methods for substantially preventing micropitting on a surface of a turbine engine component (10).

公开(公告)号：DE102009025941A1

公开(公告)日：2009-12-10

申请号：DE102009025941

申请日：2009-06-09

Applicant: GEN ELECTRIC

Inventor： RUGGIERO ERIC JOHN ,  BHATE NITIN ,  FITZMORRIS DANIEL JAMES ,  GEORGE ANTHONY JAMES

IPC: H02K9/08 ,  H02K5/12

Abstract: A method for modifying a sealing system of a hydrogen-cooled generator includes coupling to a sealing device of the generator a contacting seal comprising a plurality of non-metallic bristles projecting from an aluminum body with tips of the bristles engaging a rotor of the generator. Another method includes removing a portion of a non-contacting seal, providing a replacement sealing device comprising an aluminum body and a plurality of non-metallic bristles projecting therefrom, and replacing the removed portion of the non-contacting seal by coupling the aluminum body to the non-contacting seal such that tips of the bristles contact the rotor. Another method includes removing an original sealing device, providing a replacement sealing device comprising an aluminum body and a plurality of non-metallic bristles projecting therefrom, and inserting the replacement sealing device into the generator such that tips of the bristles contact a rotor of the generator.

公开(公告)号：DE602005004447D1

公开(公告)日：2008-03-13

申请号：DE602005004447

申请日：2005-06-22

Applicant: GEN ELECTRIC

Inventor： WELLS THOMAS ALLEN ,  BULMAN DAVID EDWARD ,  NOE MARK EUGENE ,  BHATE NITIN

IPC: F01D9/04 ,  F01D9/00 ,  F01D9/02 ,  F01D11/00 ,  F16J15/08

Abstract: A collar seal (34) is configured for a turbine nozzle vane. The seal (34) includes a retainer (36) having a circumferential airfoil contour conforming with the airfoil contour of the vane (32). A flexible leaf (48) is surrounded by the retainer (36) and fixedly joined thereto. A woven sheath (50) encases the leaf (48) and is fixedly joined to the retainer (36). In an exemplary embodiment, the collar seal (34) surrounds one end of a ceramic turbine vane (32) mounted in a metal supporting band (26).

公开(公告)号：GB2452040A

公开(公告)日：2009-02-25

申请号：GB0716256

申请日：2007-08-20

Applicant: GEN ELECTRIC

Inventor： BHATE NITIN ,  WOLFE CHRISTOPHER EDWARD

IPC: F01D11/08 ,  F01C19/02 ,  F04C27/00

Abstract: A rotary machine 10 includes a rotary component 18 inside a stationary component 16. A brush sealing system 11, disposed between the stationary 16 and rotary 18 components, includes a holding device 24 coupled to the stationary component 16. A plurality of carbon bristles 22 are provided, each bristle 22 having a first end 34 coupled to the holding device 24 and a second end 36 protruding from the holding device 24 towards the rotary component 18, the diameter of each bristle 22 is 0.00254 to 0.0254 mm (0.1 to 1 mils). The holding device 24 may have two plates 38,40 to hold the bristles 22 and there may be a matrix 42 between these plates 38,40 to which the first end 34 of each bristle 22 is coupled. The bristles 22 may have to conform to standards with regard to strength, fiber modulus, friction coefficient, thermal conductivity, and temperature capability.

公开(公告)号：DE602005007408D1

公开(公告)日：2008-07-24

申请号：DE602005007408

申请日：2005-03-23

Applicant: GEN ELECTRIC

Inventor： GHASRIPOOR FARSHAD ,  CHUPP RAYMOND EDWARD ,  LOKHANDWALLA MURTUZA ,  BHATE NITIN

IPC: F01D11/08 ,  F01D5/28 ,  F01D11/12 ,  F01D11/14 ,  F02C7/28

Abstract: A compliant seal (20) for use between rotating blades (16) and a static shroud (18) surrounding the rotating blades (16) in a steam or gas turbine (10) is disclosed. The seal (20) includes a tip surface (36), substantially resistant to wear due to rubbing by the tip of the rotating blades (16), and an elastic biasing member (38), comprising a biasing element. The wear-resistant surface (36) is thus biased against the tips of the rotating blades (16) to seal a gas path between the rotating blades (16) and the static shroud (18).