WO2016168870A3 - Intershaft seal with asymmetric sealing ring and centrifugal retaining plates - Google Patents

Intershaft seal with asymmetric sealing ring and centrifugal retaining plates Download PDF

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Publication number
WO2016168870A3
WO2016168870A3 PCT/US2016/044615 US2016044615W WO2016168870A3 WO 2016168870 A3 WO2016168870 A3 WO 2016168870A3 US 2016044615 W US2016044615 W US 2016044615W WO 2016168870 A3 WO2016168870 A3 WO 2016168870A3
Authority
WO
WIPO (PCT)
Prior art keywords
sealing ring
retaining plates
centrifugal retaining
centrifugal
ring
Prior art date
Application number
PCT/US2016/044615
Other languages
French (fr)
Other versions
WO2016168870A2 (en
Inventor
Glenn M. Garrison
Original Assignee
Stein Seal Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/US2016/033165 external-priority patent/WO2016179608A2/en
Application filed by Stein Seal Company filed Critical Stein Seal Company
Priority to US15/509,213 priority Critical patent/US10190429B2/en
Publication of WO2016168870A2 publication Critical patent/WO2016168870A2/en
Publication of WO2016168870A3 publication Critical patent/WO2016168870A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • F05D2240/58—Piston ring seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/73—Shape asymmetric

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)

Abstract

An intershaft seal assembly (30) for use between an inner shaft (32) and an outer shaft (31) within a turbine engine is presented. The seal assembly (30) includes a sealing ring (33), centrifugal retaining plates (102), and end rings (37, 38). The sealing ring (33) further includes a plurality of asymmetric ring segments (34) whereby each asymmetric ring segment (34) further includes a vertical flange (46) and horizontal flanges (47) extending from the vertical flange (46) in a non-symmetric arrangement. At least one slot (104) is disposed along each horizontal flange (47). The sealing ring (33) is interposed between the centrifugal retaining plates (102). Each centrifugal retaining plate (102) includes a plurality of tabs (103) extending therefrom. Each tab (103) is engaged by one slot (104). The sealing ring (33) and the centrifugal retaining plates (102) are interposed between the end rings (37, 38). Each centrifugal retaining plate (102) is directly interposed between one horizontal flange (47) and one end ring (37, 38). The vertical flange (46) extends from between the end rings (37, 38) in the direction of the outer shaft (31). A non-contact seal is formed between an outer sealing surface (62) along the vertical flange (46) and an inner sealing surface (63) along the outer shaft (31).
PCT/US2016/044615 2016-04-29 2016-07-29 Intershaft seal with asymmetric sealing ring and centrifugal retaining plates WO2016168870A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/509,213 US10190429B2 (en) 2016-04-29 2016-07-29 Intershaft seal with asymmetric sealing ring and centrifugal retaining plates

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662329590P 2016-04-29 2016-04-29
US62/329,590 2016-04-29
PCT/US2016/033165 WO2016179608A2 (en) 2016-04-29 2016-05-19 Intershaft seal with asymmetric sealing ring
USPCT/US2016/033165 2016-05-19

Publications (2)

Publication Number Publication Date
WO2016168870A2 WO2016168870A2 (en) 2016-10-20
WO2016168870A3 true WO2016168870A3 (en) 2017-02-23

Family

ID=57127219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/044615 WO2016168870A2 (en) 2016-04-29 2016-07-29 Intershaft seal with asymmetric sealing ring and centrifugal retaining plates

Country Status (1)

Country Link
WO (1) WO2016168870A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358468B (en) * 2021-06-01 2021-12-07 广东嘉元科技股份有限公司 Online tensile strength and elongation detection device for copper foil production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752077A (en) * 1985-12-20 1988-06-21 Mtu Motoren-Und Turbinen Union Muenchen Gmbh Sliding ring seal
US6325381B1 (en) * 1999-05-04 2001-12-04 System Seals, Inc. High-pressure rotary seal
JP2003113945A (en) * 2001-10-09 2003-04-18 Mitsubishi Heavy Ind Ltd Shaft sealing mechanism and turbine
US20030131602A1 (en) * 2002-01-11 2003-07-17 Steve Ingistov Turbine power plant having an axially loaded floating brush seal
US20130251523A1 (en) * 2008-09-15 2013-09-26 Stein Seal Company Intershaft Seal with Centrifugal Compensation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752077A (en) * 1985-12-20 1988-06-21 Mtu Motoren-Und Turbinen Union Muenchen Gmbh Sliding ring seal
US6325381B1 (en) * 1999-05-04 2001-12-04 System Seals, Inc. High-pressure rotary seal
JP2003113945A (en) * 2001-10-09 2003-04-18 Mitsubishi Heavy Ind Ltd Shaft sealing mechanism and turbine
US20030131602A1 (en) * 2002-01-11 2003-07-17 Steve Ingistov Turbine power plant having an axially loaded floating brush seal
US20130251523A1 (en) * 2008-09-15 2013-09-26 Stein Seal Company Intershaft Seal with Centrifugal Compensation

Also Published As

Publication number Publication date
WO2016168870A2 (en) 2016-10-20

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