GB859647A - Improvements in or relating to shaft seals for gas-filled machines - Google Patents

Improvements in or relating to shaft seals for gas-filled machines

Info

Publication number
GB859647A
GB859647A GB3409958A GB3409958A GB859647A GB 859647 A GB859647 A GB 859647A GB 3409958 A GB3409958 A GB 3409958A GB 3409958 A GB3409958 A GB 3409958A GB 859647 A GB859647 A GB 859647A
Authority
GB
United Kingdom
Prior art keywords
sealing
sealing surfaces
seal
chamber
gas
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
GB3409958A
Inventor
John Ledbetter
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Priority to GB3409958A priority Critical patent/GB859647A/en
Publication of GB859647A publication Critical patent/GB859647A/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
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path
    • F16J15/4474—Pre-assembled packings

Landscapes

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

Abstract

859,647. Stuffing-box substitutes. GENERAL ELECTRIC CO. Ltd. July 28, 1959 [Oct. 24, 1958], No. 34099/58. Class 122 (5). In a shaft seal for a gas-filled machine, for example, a hydrogen-cooled alternator, in which a sealing liquid is caused to flow between cooperating sealing surfaces on a collar 2 fixed to the shaft 1 and a sealing member 7, the sealing surfaces extend axially and are arranged so that the flow of sealing liquid towards the inboard or machine-interior end of the seal is opposed by centrifugal action. Tapered sealing surfaces 3, 4 on the collar 2 co-operate with similar sealing surfaces 5, 6 on the member 7 which is slidable in a housing 8 but prevented from rotation by a pin 9 and sealing oil is supplied to the co-operating surfaces 3, 5 and 4, 6 from a chamber 12 fed through ducts 13 from an oilpressure chamber 14. Oil flowing to each side of the seal between the sealing surfaces is opposed by centrifugal action. The thrust on the member 7 is determined by the gas pressure in the machine and the oil pressure in chamber 14 and, if desired, the force in the inboard direction may be augmented by springs 18. The sealing surfaces on the inboard and outboard sides of the seal may be respectively radially and axially disposed.
GB3409958A 1958-10-24 1958-10-24 Improvements in or relating to shaft seals for gas-filled machines Expired GB859647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3409958A GB859647A (en) 1958-10-24 1958-10-24 Improvements in or relating to shaft seals for gas-filled machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3409958A GB859647A (en) 1958-10-24 1958-10-24 Improvements in or relating to shaft seals for gas-filled machines

Publications (1)

Publication Number Publication Date
GB859647A true GB859647A (en) 1961-01-25

Family

ID=10361360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3409958A Expired GB859647A (en) 1958-10-24 1958-10-24 Improvements in or relating to shaft seals for gas-filled machines

Country Status (1)

Country Link
GB (1) GB859647A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855453A1 (en) * 1977-12-23 1979-07-05 Derman Ab K G SEAL ARRANGEMENT BETWEEN AN INNER PART, IN PARTICULAR A SHAFT, AND AN EXTERNAL PART SURROUNDING THIS
US4313608A (en) * 1978-12-20 1982-02-02 Associated Engineering Limited Means for controlling fluid flow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855453A1 (en) * 1977-12-23 1979-07-05 Derman Ab K G SEAL ARRANGEMENT BETWEEN AN INNER PART, IN PARTICULAR A SHAFT, AND AN EXTERNAL PART SURROUNDING THIS
US4313608A (en) * 1978-12-20 1982-02-02 Associated Engineering Limited Means for controlling fluid flow

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