GB972907A - Sealing device - Google Patents

Sealing device

Info

Publication number
GB972907A
GB972907A GB2024663A GB2024663A GB972907A GB 972907 A GB972907 A GB 972907A GB 2024663 A GB2024663 A GB 2024663A GB 2024663 A GB2024663 A GB 2024663A GB 972907 A GB972907 A GB 972907A
Authority
GB
United Kingdom
Prior art keywords
bearing
shaft
trough
annular
secured
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
GB2024663A
Inventor
Ralph John Shire
George Pask
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce 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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB2024663A priority Critical patent/GB972907A/en
Publication of GB972907A publication Critical patent/GB972907A/en
Expired legal-status Critical Current

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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Of Bearings (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

972,907. Liquid seals. ROLLS-ROYCE Ltd. May 21, 1963, No. 20246/63. Heading F2B. A centrifugal liquid seal for a rotatable shaft 16 journalled within a bearing 17 comprises an annular member 30, 33 secured to the shaft and a static annular member 40 mounted about the shaft and extending as at 41 into an annular radially-inwardly facing trough 35 formed by the member 30, 33 so as to shield one side of the bearing from any hot gas, means being provided, operative throughout the rotation of the shaft, for supplying lubricating oil to the bearing and for causing the oil after its passage through the bearing to flow continuously through the trough to form a seal between the members 30, 33 and 40. The shaft 16 is that of an aircraft gas turbine engine. The member 40 is secured to an annular member 36 bolted to a hub portion 27 of an interior housing 23 secured to the engine casing by members 25, 26. The lubricating oil, after passing out of the bearing 17 as shown by arrow 52, enters through passages 53 into the trough 35 where under the influence of centrifugal force due to the rotation of the shaft it forms an annular well into which the fin 41 of the member 40 dips. The oil flowing from the trough 35 passes through the annular space 55 and is returned to a sump via holes provided in the hub portion 27 and the bearing outer race. The air being sealed is formed of low pressure air heated in its passage through the engine and entering the housing through apertures 23a and combining as at 50 air which has become heated after cooling the turbine and has passed through a seal 44, 45.
GB2024663A 1963-05-21 1963-05-21 Sealing device Expired GB972907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2024663A GB972907A (en) 1963-05-21 1963-05-21 Sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2024663A GB972907A (en) 1963-05-21 1963-05-21 Sealing device

Publications (1)

Publication Number Publication Date
GB972907A true GB972907A (en) 1964-10-21

Family

ID=10142807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2024663A Expired GB972907A (en) 1963-05-21 1963-05-21 Sealing device

Country Status (1)

Country Link
GB (1) GB972907A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635582A (en) * 1969-03-19 1972-01-18 Dominion Eng Works Ltd Seals for hydraulic machines
WO2008065359A2 (en) * 2006-11-28 2008-06-05 Cummins Turbo Technologies Limited Hydraulic seal for a turbocharger
EP3418501A1 (en) * 2017-06-23 2018-12-26 United Technologies Corporation Seals and corresponding system for reducing leakage about a rotating shaft
EP3741962A1 (en) * 2019-05-23 2020-11-25 Raytheon Technologies Corporation Cover for rotatable shaft of gas turbine engine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635582A (en) * 1969-03-19 1972-01-18 Dominion Eng Works Ltd Seals for hydraulic machines
WO2008065359A2 (en) * 2006-11-28 2008-06-05 Cummins Turbo Technologies Limited Hydraulic seal for a turbocharger
WO2008065359A3 (en) * 2006-11-28 2008-07-31 Cummins Turbo Tech Ltd Hydraulic seal for a turbocharger
GB2456483A (en) * 2006-11-28 2009-07-22 Cummins Turbo Technologies Hydraulic seal for a turbocharger
GB2456483B (en) * 2006-11-28 2011-03-16 Cummins Turbo Technologies Hydraulic seal for a turbocharger
US8075251B2 (en) 2006-11-28 2011-12-13 Cummins Turbo Technologies Limited Hydraulic seal for a turbocharger
CN101595277B (en) * 2006-11-28 2013-07-24 康明斯涡轮增压技术有限公司 Hydraulic seal for a turbocharger
EP3418501A1 (en) * 2017-06-23 2018-12-26 United Technologies Corporation Seals and corresponding system for reducing leakage about a rotating shaft
US10371263B2 (en) 2017-06-23 2019-08-06 United Technologies Corporation Hydraulic seal for non-mainshaft, rotating to static
EP3741962A1 (en) * 2019-05-23 2020-11-25 Raytheon Technologies Corporation Cover for rotatable shaft of gas turbine engine
US11603889B2 (en) 2019-05-23 2023-03-14 Raytheon Technologies Corporation Cover for rotatable shaft of gas turbine engine

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