GB964946A - Sealing and braking device for rotary machines - Google Patents

Sealing and braking device for rotary machines

Info

Publication number
GB964946A
GB964946A GB4362462A GB4362462A GB964946A GB 964946 A GB964946 A GB 964946A GB 4362462 A GB4362462 A GB 4362462A GB 4362462 A GB4362462 A GB 4362462A GB 964946 A GB964946 A GB 964946A
Authority
GB
United Kingdom
Prior art keywords
shaft
machine
clearance
rotor
piston
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
GB4362462A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
BBC Brown Boveri France SA
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 FR879555A external-priority patent/FR1306532A/en
Application filed by Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB964946A publication Critical patent/GB964946A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/14—Shaft sealings operative only when pump is inoperative
    • F04D29/143—Shaft sealings operative only when pump is inoperative especially adapted for elastic fluid pumps
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/006—Arrangements of brakes
    • 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
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
    • 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
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
    • F16J15/363—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member the diaphragm or bellow being made of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

964,946. Axial-flow blowers; turbines. BROWN, BOVERI & CO. Ltd. Nov. 10, 1962 [Nov. 21, 1961], No. 43624/62. Headings F1C and F1T. [Also in Division F2] Means for sealing and braking the shaft 6 of a fluid pressure rotary machine, for example a blower, compressor or turbine, comprises a piston 1 which is slidable on a cylindrical extension 5 of the machine casing 3, connected to the casing by a metal bellows 2 and spaced from the machine rotor 11 when the machine is running, the piston being actuated to bring it into contract with the rotor 11 when the machine is brought to rest by supplying auxiliary fluid at a higher pressure than that in the machine to the space 8 inside the bellows 2, the consequent pressure of the piston on the rotor causing axial displacement of theshaft resulting in closure of an annular clearance 7 between the shaft and the extension 5 and the supply of auxiliary fluid to said clearance. Movement of the piston toward the rotor uncovers an orifice 10 in the extension 5 through which auxiliary fluid is supplied to the clearance 7 and consequent displacement of the shaft closes the clearance 7 by engagement of a flange 12 on the shaft with the casing 3. When the machine is running the shaft is sealed by normal sealing means (not shown). The invention is applicable to machines linked to a common fluid circuit and when in use on one of such machines it holds the shaft at rest and the auxiliary fluid in the clearance 7 prevents leakage of common fluid along the shaft.
GB4362462A 1961-11-21 1962-11-19 Sealing and braking device for rotary machines Expired GB964946A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR879555A FR1306532A (en) 1961-11-21 1961-11-21 Sealing and braking device for rotating machines
DE1962A0041687 DE1239150B (en) 1961-11-21 1962-11-22 Device for standstill sealing and braking for turbo machines

Publications (1)

Publication Number Publication Date
GB964946A true GB964946A (en) 1964-07-29

Family

ID=25963833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4362462A Expired GB964946A (en) 1961-11-21 1962-11-19 Sealing and braking device for rotary machines

Country Status (3)

Country Link
CH (1) CH399094A (en)
DE (1) DE1239150B (en)
GB (1) GB964946A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100119A1 (en) * 2010-07-08 2012-01-09 Turboden Srl FLUID SEALING DEVICE FOR ROTATING MACHINES
IT201800002027A1 (en) * 2018-01-26 2019-07-26 Turboden Spa Fluid seal device for rotating machines

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347263C2 (en) * 1983-12-28 1995-07-13 Friatec Rheinhuette Gmbh & Co Method and device for sealing a pump shaft
DE3440635A1 (en) * 1984-11-07 1986-05-22 J.M. Voith Gmbh, 7920 Heidenheim Method for sealing off the cover-side housing of hydraulic machines and machine for implementing the method
US5052694A (en) * 1986-07-08 1991-10-01 Eg&G Sealol, Inc. Hydrostatic face seal and bearing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035992B (en) * 1954-07-30 1958-08-07 Licentia Gmbh Device for pressing a sealing ring onto a shaft collar or the like.
DE1098771B (en) * 1955-05-05 1961-02-02 Parsons C A & Co Ltd Shaft seal
DE1065236B (en) * 1956-09-13
NL100311C (en) * 1958-02-19

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100119A1 (en) * 2010-07-08 2012-01-09 Turboden Srl FLUID SEALING DEVICE FOR ROTATING MACHINES
WO2012004821A1 (en) 2010-07-08 2012-01-12 Turboden S.R.L. Fluid sealing device for rotating machines
US9587500B2 (en) 2010-07-08 2017-03-07 Turboden S.R.L. Fluid sealing device for rotating machines
IT201800002027A1 (en) * 2018-01-26 2019-07-26 Turboden Spa Fluid seal device for rotating machines
WO2019145809A1 (en) * 2018-01-26 2019-08-01 Turboden S.p.A. Turbomachine provided with fluid sealing device

Also Published As

Publication number Publication date
DE1239150B (en) 1967-04-20
CH399094A (en) 1966-03-31

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