GB1069507A - Annular flow duct - Google Patents

Annular flow duct

Info

Publication number
GB1069507A
GB1069507A GB7370/66A GB737066A GB1069507A GB 1069507 A GB1069507 A GB 1069507A GB 7370/66 A GB7370/66 A GB 7370/66A GB 737066 A GB737066 A GB 737066A GB 1069507 A GB1069507 A GB 1069507A
Authority
GB
United Kingdom
Prior art keywords
casing
struts
expansion
sheet metal
attached
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
GB7370/66A
Inventor
Ronald Jones
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 GB7370/66A priority Critical patent/GB1069507A/en
Priority to FR94334A priority patent/FR1510710A/en
Publication of GB1069507A publication Critical patent/GB1069507A/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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/04—Mounting of an exhaust cone in the jet pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1,069,507. Jet propulsion plant. ROLLS-ROYCE Ltd. Feb.18, 1966, No.7370/66. Heading F1J. A central cone 21 is mounted in the exhaust passageway 13 of a gas turbine vertical lift engine by means of angularly spaced struts 22 attached at their outer ends to the outer casing 20 of the passageway. Each strut 22 has a portion 23 passing freely through the casing 20 and attached to the centre of a dished sheet metal member 24 welded to the casing 20 and having concentric corrugations 25. The struts are formed of a ceramic material, such as silicon nitride, having a very low coefficient of expansion, whilst the casing 20 is of sheet metal and tends to expand considerably in a radial direction when heated by the turbine exhaust gases. The corrugated members 24 provide a flexible connection between the respective struts and the casing 20, thus permitting such expansion.
GB7370/66A 1966-02-18 1966-02-18 Annular flow duct Expired GB1069507A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB7370/66A GB1069507A (en) 1966-02-18 1966-02-18 Annular flow duct
FR94334A FR1510710A (en) 1966-02-18 1967-02-09 Annular flow duct, in particular for a gas turbo-reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7370/66A GB1069507A (en) 1966-02-18 1966-02-18 Annular flow duct

Publications (1)

Publication Number Publication Date
GB1069507A true GB1069507A (en) 1967-05-17

Family

ID=9831840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7370/66A Expired GB1069507A (en) 1966-02-18 1966-02-18 Annular flow duct

Country Status (2)

Country Link
FR (1) FR1510710A (en)
GB (1) GB1069507A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771804A1 (en) * 2019-07-29 2021-02-03 Pratt & Whitney Canada Corp. Gas turbine engine exhaust case
CN115355103A (en) * 2022-07-29 2022-11-18 中科航星科技有限公司 Tail jet pipe structure suitable for double-duct turbofan engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771804A1 (en) * 2019-07-29 2021-02-03 Pratt & Whitney Canada Corp. Gas turbine engine exhaust case
US11572793B2 (en) 2019-07-29 2023-02-07 Pratt & Whitney Canada Corp. Gas turbine engine exhaust case
CN115355103A (en) * 2022-07-29 2022-11-18 中科航星科技有限公司 Tail jet pipe structure suitable for double-duct turbofan engine

Also Published As

Publication number Publication date
FR1510710A (en) 1968-01-19

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