GB745630A - Fluid flow control device for jet propulsion nozzles - Google Patents

Fluid flow control device for jet propulsion nozzles

Info

Publication number
GB745630A
GB745630A GB30493/51A GB3049351A GB745630A GB 745630 A GB745630 A GB 745630A GB 30493/51 A GB30493/51 A GB 30493/51A GB 3049351 A GB3049351 A GB 3049351A GB 745630 A GB745630 A GB 745630A
Authority
GB
United Kingdom
Prior art keywords
nozzle
fluid
jet propulsion
propelling
pressure
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
GB30493/51A
Inventor
Marcel Kadosch
Jean Le Foll
Francois Marie Louis Maunoury
Jean Bertin
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of GB745630A publication Critical patent/GB745630A/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
    • F02K1/28—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow
    • F02K1/30—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow for varying effective area of jet pipe or nozzle
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/148—Blades with variable camber, e.g. by ejection of fluid
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

745,630. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Dec. 31, 1951 [Jan. 4, 1951], No. 30493/51. Class 110(3) A device for varying the effective area of the propelling nozzle of a jet propulsion engine comprises fluid-injecting means opening into the nozzle and extending over at least a portion of the periphery thereof for forming a screen-like fluid jet which issues into the propelling nozzle in a direction perpendicular to the axis of the nozzle, or inclined upstream with respect to a plane perpendicular to this axis. As shown, the fluid-injecting means is located near the outlet of the propelling nozzle 1 and is constituted by a series of closely spaced slot-like passages 5<SP>1</SP> extending round the whole periphery of the nozzle. The slots 5<SP>1</SP> are formed in the inner wall 3 of the nozzle and communicate with a fluid pressure under the control of a valve 8. This pressure may be supplied from any part of the fluid circuit of the engine having a pressure substantially greater than that in the nozzle 1, e.g. the outlet of the engine compressor, or it may be an independent pressure. The slots 5<SP>1</SP> may be replaced by a continuous annular slot and in a modification such a slot is arranged in the outer wall 2 of the propelling nozzle.
GB30493/51A 1951-01-04 1951-12-31 Fluid flow control device for jet propulsion nozzles Expired GB745630A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR745630X 1951-01-04
US26366651A 1951-12-27 1951-12-27
US396992A US2825532A (en) 1951-01-04 1953-12-08 Device for controlling the flow of fluid between cambered blades

Publications (1)

Publication Number Publication Date
GB745630A true GB745630A (en) 1956-02-29

Family

ID=32329517

Family Applications (2)

Application Number Title Priority Date Filing Date
GB23600/53A Expired GB745693A (en) 1951-01-04 1951-12-31 Device for controlling the flow of fluid between cambered blades
GB30493/51A Expired GB745630A (en) 1951-01-04 1951-12-31 Fluid flow control device for jet propulsion nozzles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB23600/53A Expired GB745693A (en) 1951-01-04 1951-12-31 Device for controlling the flow of fluid between cambered blades

Country Status (2)

Country Link
US (1) US2825532A (en)
GB (2) GB745693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029011A (en) * 1955-10-13 1962-04-10 Bristol Siddeley Engines Ltd Rotary compressors or turbines

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885856A (en) * 1956-03-23 1959-05-12 Curtiss Wright Corp Apparatus for increasing compressor pressure ratios in a gas turbine engine
US3032313A (en) * 1956-04-09 1962-05-01 Bertin & Cie Turbo-machines
US2935245A (en) * 1956-12-10 1960-05-03 Westinghouse Electric Corp Gas reaction rotors
US2944729A (en) * 1957-03-29 1960-07-12 United Aircraft Corp Induction and discharge means for effective camber control
US2975962A (en) * 1957-05-10 1961-03-21 Konink Maschf Gebr Stork & Co Impellers for centrifugal fans
US3080137A (en) * 1957-11-19 1963-03-05 Hurel Maurice Louis Aircraft having a lift producing rotor disposed in the wing
US3146590A (en) * 1962-03-12 1964-09-01 Gen Electric Power system with energy dividing means
GB997863A (en) * 1962-07-24 1965-07-07 B S A Harford Pumps Ltd Improvements relating to centrifugal pumps
US3403890A (en) * 1965-07-15 1968-10-01 Sundstrand Corp Turbine
FR1483743A (en) * 1965-12-02 1967-06-09 Snecma Turbomachine with contra-rotating compressor
DE2042478C3 (en) * 1970-08-27 1975-08-14 Motoren- Und Turbinen-Union Muenchen Gmbh, 8000 Muenchen Gas turbine engine, preferably jet engine for aircraft, with cooling air and optionally sealing air extraction
US4022542A (en) * 1974-10-23 1977-05-10 Teledyne Industries, Inc. Turbine blade
US4406125A (en) * 1981-08-10 1983-09-27 Ford Motor Company Variable flow rate turbocharger
NL8105790A (en) * 1981-12-22 1983-07-18 Thomassen Holland Bv METHOD FOR IMPROVING THE PARTIAL LOAD BEHAVIOR OF A FLOWING MACHINE, COMPRESSOR OR PUMP ORIENTED FOR APPLYING THIS METHOD
US4510754A (en) * 1983-06-02 1985-04-16 Ford Motor Company Turbocharger and exhaust gas control therefor
US4590759A (en) * 1984-01-27 1986-05-27 Pratt & Whitney Canada Inc. Method and apparatus for improving acceleration in a multi-shaft gas turbine engine
US4640091A (en) * 1984-01-27 1987-02-03 Pratt & Whitney Canada Inc. Apparatus for improving acceleration in a multi-shaft gas turbine engine
US4674275A (en) * 1984-05-15 1987-06-23 Sigmunn Stroem Method for varying the cross-sectional flow area in a radial gas turbine inlet
US4624104A (en) * 1984-05-15 1986-11-25 A/S Kongsberg Vapenfabrikk Variable flow gas turbine engine
GB2367096B (en) * 2000-09-23 2004-11-24 Abb Alstom Power Uk Ltd Turbocharging of engines
US20090016871A1 (en) * 2007-07-10 2009-01-15 United Technologies Corp. Systems and Methods Involving Variable Vanes
US8197209B2 (en) * 2007-12-19 2012-06-12 United Technologies Corp. Systems and methods involving variable throat area vanes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963540A (en) * 1950-07-17
DE459204C (en) * 1923-03-27 1928-04-28 Rudolf Wagner Dr Blade, especially for steam or gas turbines
US2341148A (en) * 1941-03-08 1944-02-08 Westinghouse Electric & Mfg Co Turbine nozzle
US2344835A (en) * 1943-08-07 1944-03-21 Edward A Stalker Pump
US2489683A (en) * 1943-11-19 1949-11-29 Edward A Stalker Turbine
FR963824A (en) * 1943-11-19 1950-07-21
US2652685A (en) * 1948-05-13 1953-09-22 United Aricraft Corp Starting device for compressorturbine units
US2653446A (en) * 1948-06-05 1953-09-29 Lockheed Aircraft Corp Compressor and fuel control system for high-pressure gas turbine power plants
US2579049A (en) * 1949-02-04 1951-12-18 Nathan C Price Rotating combustion products generator and turbine of the continuous combustion type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029011A (en) * 1955-10-13 1962-04-10 Bristol Siddeley Engines Ltd Rotary compressors or turbines

Also Published As

Publication number Publication date
US2825532A (en) 1958-03-04
GB745693A (en) 1956-02-29

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