ES8307346A1 - Shaft - Google Patents

Shaft

Info

Publication number
ES8307346A1
ES8307346A1 ES501833A ES501833A ES8307346A1 ES 8307346 A1 ES8307346 A1 ES 8307346A1 ES 501833 A ES501833 A ES 501833A ES 501833 A ES501833 A ES 501833A ES 8307346 A1 ES8307346 A1 ES 8307346A1
Authority
ES
Spain
Prior art keywords
rings
seal
shaft
flows
layer
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES501833A
Other languages
Spanish (es)
Other versions
ES501833A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Publication of ES8307346A1 publication Critical patent/ES8307346A1/en
Publication of ES501833A0 publication Critical patent/ES501833A0/en
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

Abstract

A shaft seal for preventing escape of hydrogen gas in a large dynamoelectric machine comprises a pair of annular rings (10a, 10b) divided into semicircular portions having a layer (12) of babbitt metal bonded along their radially inner circumferences for mating with the journal surface of a rotating shaft (22). The seal further comprises a spring (13) exerting a radially inward force against the rings (10a, 10b) and also an axial force urging the rings (10a, 10b) against corresponding annular surfaces of a two piece annular seal casing (11a, 11b) which is fixed with respect to the rotating shaft (22). Sealing fluid supplied at (14) flows between the rings (10a, 10b) to seal between the layer (12) and the shaft (22), and also flows through passages (20, 21) for sealing at the axial faces.
ES501833A 1980-05-20 1981-04-30 IMPROVEMENTS IN FLUID PACKINGS FOR SUPPORT SURFACES OF ROTARY AXES FOR LARGE DYNAMOELECTRI-CAS MACHINES Granted ES501833A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15173080A 1980-05-20 1980-05-20

Publications (2)

Publication Number Publication Date
ES8307346A1 true ES8307346A1 (en) 1982-11-01
ES501833A0 ES501833A0 (en) 1982-11-01

Family

ID=22540016

Family Applications (1)

Application Number Title Priority Date Filing Date
ES501833A Granted ES501833A0 (en) 1980-05-20 1981-04-30 IMPROVEMENTS IN FLUID PACKINGS FOR SUPPORT SURFACES OF ROTARY AXES FOR LARGE DYNAMOELECTRI-CAS MACHINES

Country Status (5)

Country Link
JP (1) JPS579362A (en)
DE (1) DE3118469A1 (en)
ES (1) ES501833A0 (en)
GB (1) GB2076480A (en)
IT (1) IT1138368B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947567A (en) * 1982-09-13 1984-03-17 Hitachi Ltd Gas sealing device for rotary machine
GB2133482B (en) * 1983-01-13 1986-01-29 Northern Eng Ind Seal assembly
DE3577595D1 (en) * 1984-04-25 1990-06-13 Tanken Seiko Kk GASKET DEVICE FOR POWDER.
DE3530986A1 (en) * 1985-08-30 1987-03-05 Klein Schanzlin & Becker Ag Split-ring seal with a damping element
DE3830470A1 (en) * 1988-09-08 1990-03-15 Mtu Friedrichshafen Gmbh SEALING DEVICE BETWEEN SHAFT AND HOUSING OF A FLUID MACHINE WITH AT LEAST ONE IMPELLER
US5110396A (en) * 1990-06-14 1992-05-05 The Langston Corporation Floating air seal for an apparatus for manufacturing single faced corrugated board
JP2003506640A (en) * 1999-08-03 2003-02-18 シーメンス アクチエンゲゼルシヤフト Shaft sealing devices for shafts, especially generator shafts
US7432620B2 (en) * 2005-05-24 2008-10-07 Siemens Power Generation, Inc. Seal assembly for a hydrogen-cooled electric power generator with interface impervious to location of plant piping
CN101922555A (en) * 2010-09-07 2010-12-22 沈阳斯特机械制造有限公司 Oil seal group structure
US10208862B2 (en) * 2015-01-13 2019-02-19 General Electric Company Seal ring for hydrogen cooled generator
DE102015219359A1 (en) * 2015-10-07 2017-04-13 Siemens Aktiengesellschaft Increase the apparent power of gas-cooled turbogenerators due to increased pressure in the housing
US11162591B2 (en) 2016-03-10 2021-11-02 General Electric Company Seal ring assembly for a dynamoelectric machine
US10822983B2 (en) * 2018-02-06 2020-11-03 Raytheon Technologies Corportation Hydrostatic seal with abradable teeth for gas turbine engine

Also Published As

Publication number Publication date
JPS579362A (en) 1982-01-18
DE3118469A1 (en) 1982-03-25
ES501833A0 (en) 1982-11-01
GB2076480A (en) 1981-12-02
IT1138368B (en) 1986-09-17
IT8121841A0 (en) 1981-05-20

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