DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Segmented face seal assembly and an associated method thereof

Abstract

A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, and a face seal assembly including a first segmented seal ring and a second segmented seal ring. The first segmented seal ring includes a plurality of joints and a first flat-contact surface and the second segmented seal ring includes a plurality of segment ends and a second flat-contact surface. One of the first and second segmented seal rings includes a seal bearing face. The second segmented seal ring is coupled to the first segmented seal ring such that the second flat-contact surface is in contact with the first flat-contact surface. The plurality of segment ends is circumferentially offset from the plurality of joints. The first segmented seal ring is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650793
Patent Number(s):
10626743
Application Number:
15/397,278
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
DOE Contract Number:  
FE0024007
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/03/2017
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bidkar, Rahul Anil, Thatte, Azam Mihir, Wang, Jifeng, Zheng, Xiaoqing, and Sevincer, Edip. Segmented face seal assembly and an associated method thereof. United States: N. p., 2020. Web.
Bidkar, Rahul Anil, Thatte, Azam Mihir, Wang, Jifeng, Zheng, Xiaoqing, & Sevincer, Edip. Segmented face seal assembly and an associated method thereof. United States.
Bidkar, Rahul Anil, Thatte, Azam Mihir, Wang, Jifeng, Zheng, Xiaoqing, and Sevincer, Edip. Tue . "Segmented face seal assembly and an associated method thereof". United States. https://www.osti.gov/servlets/purl/1650793.
@article{osti_1650793,
title = {Segmented face seal assembly and an associated method thereof},
author = {Bidkar, Rahul Anil and Thatte, Azam Mihir and Wang, Jifeng and Zheng, Xiaoqing and Sevincer, Edip},
abstractNote = {A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, and a face seal assembly including a first segmented seal ring and a second segmented seal ring. The first segmented seal ring includes a plurality of joints and a first flat-contact surface and the second segmented seal ring includes a plurality of segment ends and a second flat-contact surface. One of the first and second segmented seal rings includes a seal bearing face. The second segmented seal ring is coupled to the first segmented seal ring such that the second flat-contact surface is in contact with the first flat-contact surface. The plurality of segment ends is circumferentially offset from the plurality of joints. The first segmented seal ring is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}

Works referenced in this record:

Pressure responsive primary ring geometry for a non-contacting mechanical end face seal
patent, October 1997


Hydrodynamic face seal with lift pads
patent, April 1988


Carbon composite mateiral for tribological applications
patent, July 1996


Face seal with angled grooves
patent, July 1996


Non-contacting shaft sealing device
patent, September 1997


Seal device of the non-contact type
patent, March 1995


Piloted Retaining Plate for a Face Seal Arrangement
patent-application, September 2016


Mechanical end face seal system
patent, October 1995


Turbomachine Hybrid Lift-Off Face Seal
patent-application, March 2014


Air Riding Seal
patent-application, January 2007


Static pressure non-contact gas seal
patent, October 2000


Noncontacting face seal
patent, July 1993


Gas shaft seal with flexible converging sealing faces
patent, March 1997


Dual non-contacting mechanical face seal having concentric seal faces
patent, June 2000


Film Riding Seal Assembly for Turbomachinery
patent-application, January 2016


Oil Seal
patent, May 1962


Composite Dynamic Seal Mating Ring or Rotor
patent-application, September 2014


Hydrostatic face seal and bearing
patent, October 1991


Mechanical seal including a split seal ring
patent, November 1991


Gas lubricated slow speed seal
patent, November 2000


Secondary seal for gas turbines
patent, December 1992


Individually Compliant Segments for Split Ring Hydrodynamic Face Seal
patent-application, October 2015


Hydrodynamic face seal with grooved sealing dam for zero-leakage
patent, September 2002


Sliding Ring Seal
patent, December 1975


Mechanical Face Seal with a Reverse Trapezoidal Face Pattern
patent-application, July 2014


Scooping Hydrodynamic Seal
patent-application, May 2014


Secondary sealing element
patent, July 2007


Mechanical face seal with trapezoidal shaped grooves on a sealing face
patent, June 1993


Fluid-sealed shaft seal with bores for supplying and discharging fluid
patent, June 1985


Unloading Gas Barrier Face Seal
patent, March 1971


Sliding component
patent, August 2014


Bi-directional, non-contact face seal
patent, September 1992


Spiral groove face seal
patent, March 1998


Methods and Systems for Sealing a Rotary Machine Using a Segmented Seal Ring
patent-application, May 2015


Mechanical face seal having centering means
patent, September 1988


Split mechanical face seal
patent, October 2000


Secondary seal with mechanical gas seal
patent, December 1997


Diamond-Coating Bearing or Seal Structure and Fluid Machine Comprising the Same
patent-application, March 2009


Spiral groove face seal
patent, January 1993


Non-contacting mechanical face seal
patent, August 1995


Non-contacting shaft sealing device with grooved face pattern
patent, March 1996