GB716385A - Improvements in or relating to propulsion nozzle constructions for jet propulsion apparatus - Google Patents

Improvements in or relating to propulsion nozzle constructions for jet propulsion apparatus

Info

Publication number
GB716385A
GB716385A GB28595/51A GB2859551A GB716385A GB 716385 A GB716385 A GB 716385A GB 28595/51 A GB28595/51 A GB 28595/51A GB 2859551 A GB2859551 A GB 2859551A GB 716385 A GB716385 A GB 716385A
Authority
GB
United Kingdom
Prior art keywords
parts
nozzle
movable
brackets
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
GB28595/51A
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.)
Bristol Siddeley Engines Ltd
Original Assignee
De Havilland Engine Co Ltd
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 De Havilland Engine Co Ltd filed Critical De Havilland Engine Co Ltd
Publication of GB716385A publication Critical patent/GB716385A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02K1/78—Other construction of jet pipes
    • F02K1/80—Couplings or connections
    • F02K1/805—Sealing devices therefor, e.g. for movable parts of jet pipes or nozzle flaps
    • 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
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/11—Varying effective area of jet pipe or nozzle by means of pivoted eyelids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Endoscopes (AREA)

Abstract

716,385. Jet propulsion plant. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., and SMITH, J. Nov. 24, 1952 [Dec. 6, 1951], No. 28595/51. Class 110(3) A variable area nozzle for jet propulsion plant comprises a fixed portion A of circular crosssection and a movable portion comprising two or more movable circumferential parts C, C<SP>1</SP> which in their operative position abut along lines at circumferentially-spaced points to constitute a nozzle of circular cross-section, the movable parts lying clear of the gas stream issuing from the fixed portion in the inoperative position. The two semiannular movable parts C. C<SP>1</SP> have brackets C<SP>2</SP> secured thereto, the brackets being pivoted on axes B, B<SP>1</SP>. The two brackets are connected by a link C<SP>5</SP> and the nozzle parts C, C<SP>1</SP> are moved between the operative and inoperative positions by means of hydraulic or pneumatic jacks, the pistons D<SP>1</SP> of which are connected by rods D<SP>2</SP> to brackets C<SP>6</SP> mounted on the movable nozzle parts. The flanges C<SP>8</SP> of the nozzle parts abut in a gas-tight manner and the movable nozzle parts also form a gas-tight seal with the fixed nozzle portion in the operative position. A resilient metal ring F may be secured between the parts F<SP>1</SP>, F<SP>2</SP> secured to the fixed nozzle portion A, the forward portions of the movable nozzle parts C, C<SP>1</SP> engaging, in the operative position, with a portion of the ring F which projects beyond the parts F<SP>1</SP>, F<SP>2</SP>. The outer edge portions of the parts F, F<SP>1</SP>, F<SP>2</SP> are slotted to provide radial resilience. Specifications 591,736, 598,183 and 640,428 are referred to.
GB28595/51A 1951-12-06 1951-12-06 Improvements in or relating to propulsion nozzle constructions for jet propulsion apparatus Expired GB716385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB326310X 1951-12-06

Publications (1)

Publication Number Publication Date
GB716385A true GB716385A (en) 1954-10-06

Family

ID=10341632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28595/51A Expired GB716385A (en) 1951-12-06 1951-12-06 Improvements in or relating to propulsion nozzle constructions for jet propulsion apparatus

Country Status (3)

Country Link
CH (1) CH326310A (en)
FR (1) FR1067476A (en)
GB (1) GB716385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045734B (en) * 1955-02-11 1958-12-04 United Aircraft Corp Thrust nozzle with changeable area for a guide channel with a number of nozzle flaps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045734B (en) * 1955-02-11 1958-12-04 United Aircraft Corp Thrust nozzle with changeable area for a guide channel with a number of nozzle flaps

Also Published As

Publication number Publication date
CH326310A (en) 1957-12-15
FR1067476A (en) 1954-06-16

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