GB802861A - Improvements in or relating to the sealing of hydrogen-gas cooled electric machines - Google Patents

Improvements in or relating to the sealing of hydrogen-gas cooled electric machines

Info

Publication number
GB802861A
GB802861A GB19615/57A GB1961557A GB802861A GB 802861 A GB802861 A GB 802861A GB 19615/57 A GB19615/57 A GB 19615/57A GB 1961557 A GB1961557 A GB 1961557A GB 802861 A GB802861 A GB 802861A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
space
container
pipe
oil
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
GB19615/57A
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.)
Svenska Turbinfabriks Ljungstrom AB
Original Assignee
Svenska Turbinfabriks Ljungstrom AB
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 Svenska Turbinfabriks Ljungstrom AB filed Critical Svenska Turbinfabriks Ljungstrom AB
Publication of GB802861A publication Critical patent/GB802861A/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Lasers (AREA)

Abstract

802,861. Stuffing-box substitutes. SVENSKA TURBIN AKTIEBOLAGET LJUNGSTROM. June 21, 1957 [Aug. 4, 1956], No. 19615/57. Class 122 (5). In a hydrogen cooled electric machine sealed by oil supplied to seals 4 around the shaft 1 and returned from outlet chambers 7, 8 on each side of the seal, leakage of sealing oil into the machine from the innermost outlet chamber 8 is prevented by hydrogen circulated in a closed circuit and supplied under pressure to a first space 14 around the shaft inwardly of the chamber 8 and discharged from a second space 16 located between the first space 14 and the chamber 8. A pump 6a draws sealing oil from two containers 11 and 12, connected in parallel, and discharges it to the seal 4 through a conduit 6, the oil being returned to the containers 12 and 11 from chambers 7 and 8 through pipes 9 and 10 respectively. Hydrogen is sucked from the top of container 11 through a pipe 19 and filter 20 by a blower 18 which discharges it through pipe 15 to the space 14. The blower 18 creates a pressure in the container 11 less than that in the machine casing 2 so that hydrogen flows from space 14 to space 16 and thence through a pipe 17 back to the container. A restricted vent nozzle 22 may be fitted on the container 11, the hydrogen escaping therefrom being replaced from the cooling system.
GB19615/57A 1956-08-04 1957-06-21 Improvements in or relating to the sealing of hydrogen-gas cooled electric machines Expired GB802861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE352538X 1956-08-04

Publications (1)

Publication Number Publication Date
GB802861A true GB802861A (en) 1958-10-15

Family

ID=20308680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19615/57A Expired GB802861A (en) 1956-08-04 1957-06-21 Improvements in or relating to the sealing of hydrogen-gas cooled electric machines

Country Status (3)

Country Link
CH (1) CH352538A (en)
DE (1) DE1058620B (en)
GB (1) GB802861A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131939A (en) * 1960-10-14 1964-05-05 Bbc Brown Boveri & Cie Shaft seal for gas-filled machine
US3392804A (en) * 1965-06-29 1968-07-16 Mc Donnell Douglas Corp Lubrication system
US3949996A (en) * 1972-04-11 1976-04-13 Nippon Seiko Kabushiki Kaisha Fluid pressure seal arrangement
US3974806A (en) * 1972-08-04 1976-08-17 Toyota Jidosha Kogyo Kabushiki Kaisha Gas labyrinth carburetor throttle shaft seal
US4009972A (en) * 1975-07-10 1977-03-01 Wallace-Murray Corporation Turbocharger lubrication and exhaust system
EP2264862A1 (en) * 2009-06-16 2010-12-22 Alstom Technology Ltd Sealed electric generator and method for sealing an electric generator
US10554090B2 (en) * 2016-03-08 2020-02-04 Mitsubishi Electric Corporation Shaft seal device mounted rotating electrical machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1002714A (en) * 1964-03-19 1965-08-25 Rolls Royce Bearing lubricating means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131939A (en) * 1960-10-14 1964-05-05 Bbc Brown Boveri & Cie Shaft seal for gas-filled machine
US3392804A (en) * 1965-06-29 1968-07-16 Mc Donnell Douglas Corp Lubrication system
US3949996A (en) * 1972-04-11 1976-04-13 Nippon Seiko Kabushiki Kaisha Fluid pressure seal arrangement
US3974806A (en) * 1972-08-04 1976-08-17 Toyota Jidosha Kogyo Kabushiki Kaisha Gas labyrinth carburetor throttle shaft seal
US4009972A (en) * 1975-07-10 1977-03-01 Wallace-Murray Corporation Turbocharger lubrication and exhaust system
EP2264862A1 (en) * 2009-06-16 2010-12-22 Alstom Technology Ltd Sealed electric generator and method for sealing an electric generator
WO2010145981A1 (en) * 2009-06-16 2010-12-23 Alstom Technology Ltd Sealed generator and method for sealing an electric generator
US10554090B2 (en) * 2016-03-08 2020-02-04 Mitsubishi Electric Corporation Shaft seal device mounted rotating electrical machine

Also Published As

Publication number Publication date
CH352538A (en) 1961-02-28
DE1058620B (en) 1959-06-04

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