Pressure actuated film riding seals for turbo machinery

Bidkar, Rahul Anil; Thatte, Azam Mihir; Gibson, Nathan Evan McCurdy; Giametta, Andrew Paul

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

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Title: Pressure actuated film riding seals for turbo machinery

Abstract

A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the sealing device segments includes a stator interface element, a shoe plate having an extended portion having one or more labyrinth teeth facing the rotor and a load bearing portion, wherein the shoe plate is configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment further includes a secondary seal configured to be in contact with the stator interface element at a radially outer end and configured to be in contact with an elevated nose section of the extended portion of the shoe plate on a radially inner end; and multiple flexible elements attached to the shoe plate and to the stator interface element.

Inventors:: Bidkar, Rahul Anil; Thatte, Azam Mihir; Gibson, Nathan Evan McCurdy; Giametta, Andrew Paul

Issue Date:: Tue Aug 25 00:00:00 EDT 2015

Research Org.:: GE Global Research, Niskayuna, New York (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1212402

Patent Number(s):: 9115810

Application Number:: 14/045,083

Assignee:: General Electric Company (Niskayuna, NY)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Show more

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
F16J15/442 - {segmented}
F16J15/447 - Labyrinth packings

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T29/49826 - Assembling or joining

Show less

DOE Contract Number:: FC26-05NT42643

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Oct 03

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, and Giametta, Andrew Paul. Pressure actuated film riding seals for turbo machinery.  United States: N. p., 2015. 
        Web.

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                    Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, & Giametta, Andrew Paul. Pressure actuated film riding seals for turbo machinery.  United States.

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                    Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, and Giametta, Andrew Paul. Tue .  
        "Pressure actuated film riding seals for turbo machinery".  United States.  https://www.osti.gov/servlets/purl/1212402.

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@article{osti_1212402,

  title        = {Pressure actuated film riding seals for turbo machinery},

  author       = {Bidkar, Rahul Anil and Thatte, Azam Mihir and Gibson, Nathan Evan McCurdy and Giametta, Andrew Paul},

  abstractNote = {A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the sealing device segments includes a stator interface element, a shoe plate having an extended portion having one or more labyrinth teeth facing the rotor and a load bearing portion, wherein the shoe plate is configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment further includes a secondary seal configured to be in contact with the stator interface element at a radially outer end and configured to be in contact with an elevated nose section of the extended portion of the shoe plate on a radially inner end; and multiple flexible elements attached to the shoe plate and to the stator interface element.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Aug 25 00:00:00 EDT 2015},

  month        = {Tue Aug 25 00:00:00 EDT 2015}

}

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Works referenced in this record:

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patent, May 2002

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Compliant foil seal
patent, January 2003

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Seal carrier for a rotary machine and method of retrofitting
patent, December 2003

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patent, January 2005

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Influence of Tooth Position and Clearances on Leakage in Labyrinth Seal in Turbine
conference, March 2011

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Similar Records

Title: Pressure actuated film riding seals for turbo machinery

Abstract

Citation Formats

Compliant finer seal patent, March 1992

Pressure balanced compliant seal device patent, December 1994

Compliant foil hydrodynamic fluid film radial bearing patent, June 1995

Compliant pressure balanced seal apparatus patent, May 1997

Turbine flowpath seal patent, August 1998

High load capacity compliant foil hydrodynamic journal bearing patent, May 1999

Seal plate patent, September 1999

Hydrodynamic lift seal for use with compressible fluids patent, November 2000

Heat-resistant magnetic silicone rubber brush seals in turbomachinery and methods of application patent, May 2002

Compliant foil seal patent, January 2003

Seal carrier for a rotary machine and method of retrofitting patent, December 2003

Noncontacting finger seal patent, November 2004

Actuating mechanism for a turbine and method of retrofitting patent, January 2005

Rotary face seal assembly patent, May 2006

Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine patent, June 2007

Hydrodynamic foil face seal patent, August 2007

Compliant foil fluid film radial bearing or seal patent, November 2009

Non-contacting seal for rotating surfaces patent, June 2010

Air riding seal patent, December 2011

Spring system designs for active and passive retractable seals patent, February 2012

Non-contact seal for a gas turbine engine patent, May 2012

Non-Contact Seal for a Gas Turbine Engine patent-application, October 2008

Aerodynamic Seals for Rotary Machine patent-application, January 2014

Film Riding Seals for Rotary Machines patent-application, March 2014

A Bi-Directional Gas Face Seal journal, January 1992

Numerical Simulation and Characteristics Analysis of the Turbine Shaft End Spiral Groove Mechanical Seal conference, July 2012

Influence of Rotor Axial Shifting and Clearance on Leakage in Stepped Seal in Steam Turbines conference, March 2010

Influence of Tooth Position and Clearances on Leakage in Labyrinth Seal in Turbine conference, March 2011

Compliant finer seal
patent, March 1992

Pressure balanced compliant seal device
patent, December 1994

Compliant foil hydrodynamic fluid film radial bearing
patent, June 1995

Compliant pressure balanced seal apparatus
patent, May 1997

Turbine flowpath seal
patent, August 1998

High load capacity compliant foil hydrodynamic journal bearing
patent, May 1999

Seal plate
patent, September 1999

Hydrodynamic lift seal for use with compressible fluids
patent, November 2000

Heat-resistant magnetic silicone rubber brush seals in turbomachinery and methods of application
patent, May 2002

Compliant foil seal
patent, January 2003

Seal carrier for a rotary machine and method of retrofitting
patent, December 2003

Noncontacting finger seal
patent, November 2004

Actuating mechanism for a turbine and method of retrofitting
patent, January 2005

Rotary face seal assembly
patent, May 2006

Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine
patent, June 2007

Hydrodynamic foil face seal
patent, August 2007

Compliant foil fluid film radial bearing or seal
patent, November 2009

Non-contacting seal for rotating surfaces
patent, June 2010

Air riding seal
patent, December 2011

Spring system designs for active and passive retractable seals
patent, February 2012

Non-contact seal for a gas turbine engine
patent, May 2012

Non-Contact Seal for a Gas Turbine Engine
patent-application, October 2008

Aerodynamic Seals for Rotary Machine
patent-application, January 2014

Film Riding Seals for Rotary Machines
patent-application, March 2014

A Bi-Directional Gas Face Seal
journal, January 1992

Numerical Simulation and Characteristics Analysis of the Turbine Shaft End Spiral Groove Mechanical Seal
conference, July 2012

Influence of Rotor Axial Shifting and Clearance on Leakage in Stepped Seal in Steam Turbines
conference, March 2010

Influence of Tooth Position and Clearances on Leakage in Labyrinth Seal in Turbine
conference, March 2011