GB1273673A - Improvements relating to jet engines - Google Patents

Improvements relating to jet engines

Info

Publication number
GB1273673A
GB1273673A GB01490/70A GB1149070A GB1273673A GB 1273673 A GB1273673 A GB 1273673A GB 01490/70 A GB01490/70 A GB 01490/70A GB 1149070 A GB1149070 A GB 1149070A GB 1273673 A GB1273673 A GB 1273673A
Authority
GB
United Kingdom
Prior art keywords
rotor
intake
turbine
bladed rotor
air
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
GB01490/70A
Inventor
Wilhelm Dettmering
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1273673A publication Critical patent/GB1273673A/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
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/042—Air intakes for gas-turbine plants or jet-propulsion plants having variable geometry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • 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
    • F05D2200/00—Mathematical features
    • F05D2200/20—Special functions
    • F05D2200/26—Special functions trigonometric
    • F05D2200/262—Cosine
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)

Abstract

1,273,673. Jet engine air intakes. W. DETTMERING. March 10, 1970 [March 14, 1969], No. 11490/70. Headings F1G and F1J. In a jet engine designed for use at hypersonic velocity, a rotating non-power driven bladed rotor is disposed at the inlet of the air intake duct and causes the hypersonic air-flow to be decelerated to a lower but still supersonic velicity. In Fig. 1 the bladed rotor 4, 4<SP>1</SP> is disposed at the inlet of the air intake duct 3 and rotates about the axis 5. A conical body 1 is disposed upstream of the rotor. In a second embodiment the bladed rotor 4 is arranged to drive an auxiliary power means, and a row of stationary guide vanes is disposed downstream of the rotor blade assembly. The bladed rotor may be arranged to drive the first stage of an axialflow compressor of the engine. The intake rotor may be connected to a turbine disposed downstream of the combustion chamber of the engine so as to assist the drive thereof. In a further embodiment the intake rotor is connected to the compressor and turbine assembly. At hypersonic velocities the turbine is by-passed and air flows into the intake through the bladed rotor. At lower velocities the bladed rotor in the intake is by-passed and the by-pass duct around the turbine is closed.
GB01490/70A 1969-03-14 1970-03-10 Improvements relating to jet engines Expired GB1273673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1913028 1969-03-14

Publications (1)

Publication Number Publication Date
GB1273673A true GB1273673A (en) 1972-05-10

Family

ID=5728157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01490/70A Expired GB1273673A (en) 1969-03-14 1970-03-10 Improvements relating to jet engines

Country Status (4)

Country Link
US (1) US3719428A (en)
DE (1) DE1913028B1 (en)
FR (1) FR2037910A5 (en)
GB (1) GB1273673A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831884A (en) * 1973-02-27 1974-08-27 W Schellin Methods and device for generating lift
US3940926A (en) * 1973-08-31 1976-03-02 Craig Alfred C Jet propulsion engines
US4051671A (en) * 1974-10-31 1977-10-04 Brewer John A Jet engine with compressor driven by a ram air turbine
US4062186A (en) * 1976-05-13 1977-12-13 General Electric Company Apparatus for windmill starts in gas turbine engines
US4224790A (en) * 1977-10-11 1980-09-30 Christensen Raymond G Jet engine
US4368620A (en) * 1980-06-20 1983-01-18 Giles Jr Harry L Windmills for ramjet engine
FR2688271A1 (en) * 1992-03-04 1993-09-10 Snecma PROPULSION ENGINE, PARTICULARLY FOR SUPERSONIC AIRCRAFT.
CA2117186A1 (en) * 1992-07-08 1994-01-20 German Viktorovich Demiudov Multipurpose airborne vehicle
US5505587A (en) * 1995-01-05 1996-04-09 Northrop Grumman Corporation RAM air turbine generating apparatus
GB2297808A (en) * 1995-02-09 1996-08-14 British Aerospace Improvements in Engine Intake Design
IL165233A (en) * 2004-11-16 2013-06-27 Israel Hirshberg Energy conversion device
US7845902B2 (en) * 2005-02-15 2010-12-07 Massachusetts Institute Of Technology Jet engine inlet-fan system and design method
DE102008028883A1 (en) * 2008-06-18 2009-12-24 Rolls-Royce Deutschland Ltd & Co Kg Gas turbine with at least one multi-stage compressor unit comprising a plurality of compressor modules
US9488103B2 (en) * 2013-03-14 2016-11-08 United Technologies Corporation Variable cycle intake for reverse core engine
GB2526611B (en) * 2014-05-30 2017-09-20 William Lefley Paul Hybrid Electric Ramjet Engine
US10794282B2 (en) * 2016-01-25 2020-10-06 Rolls-Royce North American Technologies Inc. Inlet turbine for high-mach engines
US10934942B2 (en) * 2016-02-16 2021-03-02 Rolls-Royce North American Technologies Inc. Inlet turbine and transmission for high-mach engines
US20180017017A1 (en) * 2016-07-12 2018-01-18 Rolls Royce North American Technologies Inc. Ramburning engine with inlet turbine
US20240067353A1 (en) * 2021-12-31 2024-02-29 Gecheng Zha Supersonic Inlet Systems
CN114645799B (en) * 2022-02-24 2024-04-26 哈尔滨工业大学 Axisymmetric full-speed-domain ramjet engine using electric auxiliary supercharging
US12066027B2 (en) 2022-08-11 2024-08-20 Next Gen Compression Llc Variable geometry supersonic compressor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702985A (en) * 1944-01-31 1955-03-01 Power Jets Res & Dev Ltd Gas turbine power plant with power take-off from rotatable guide blading
GB611447A (en) * 1946-04-30 1948-10-29 Atkiengesellschaft Brown A combined axial flow and centrifugal compressor for aircraft engines
US2966028A (en) * 1947-10-17 1960-12-27 Gen Electric Aerodynamic diffuser mechanisms
US2939017A (en) * 1949-07-14 1960-05-31 Bendix Aviat Corp Air driven power supply
US2693675A (en) * 1949-09-01 1954-11-09 Curtiss Wright Corp Jet engine fuel control system
GB696007A (en) * 1950-09-02 1953-08-19 Burmeister & Wains Mot Mask Improvements in and relating to diffuser for the conversion of kinetic energy into pressure energy and axial-flow engine provided with such a diffuser
US2989843A (en) * 1953-07-24 1961-06-27 Curtiss Wright Corp Engine for supersonic flight
US2835470A (en) * 1956-02-17 1958-05-20 Piessey Company Ltd Fluid turbines
US2945672A (en) * 1956-10-05 1960-07-19 Marquardt Corp Gas turbine unit
US2947139A (en) * 1957-08-29 1960-08-02 United Aircraft Corp By-pass turbojet
US2952973A (en) * 1958-06-02 1960-09-20 Gen Motors Corp Turbofan-ramjet engine
DE1628237C3 (en) * 1966-07-21 1973-11-22 Wilhelm Prof. Dr.-Ing. 5100 Aachen Dettmering Flow machines deflection shovel grid
US3422625A (en) * 1966-08-05 1969-01-21 Garrett Corp Jet engine with an axial flow supersonic compressor

Also Published As

Publication number Publication date
FR2037910A5 (en) 1970-12-31
DE1913028B1 (en) 1970-08-27
US3719428A (en) 1973-03-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees