DE877383C - Hot jet engine for propelling aircraft - Google Patents

Hot jet engine for propelling aircraft

Info

Publication number
DE877383C
DE877383C DEJ2753D DEJ0002753D DE877383C DE 877383 C DE877383 C DE 877383C DE J2753 D DEJ2753 D DE J2753D DE J0002753 D DEJ0002753 D DE J0002753D DE 877383 C DE877383 C DE 877383C
Authority
DE
Germany
Prior art keywords
jet engine
hot jet
diffuser
aircraft
hot
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
DEJ2753D
Other languages
German (de)
Inventor
Kurt Ulbricht
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Priority to DEJ2753D priority Critical patent/DE877383C/en
Application granted granted Critical
Publication of DE877383C publication Critical patent/DE877383C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K7/00Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
    • F02K7/10Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, 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
    • F02C7/32Arrangement, mounting, or driving, of auxiliaries

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Description

Die Erfindung bezieht sich auf ein aus Diffusor, Brennkammer und Rückstoßdüse bestehendes Heißstrahltriebwerk mit Hilfsaggregaten zum Vortrieb von Luftfahrzeugen mit stetigem (kontinuierlichem) oder stoßweisem (intermittierendem) Betrieb und betrifft die Energiegewinnung zum Betrieb der Hilfsaggregate.The invention relates to a diffuser, combustion chamber and thrust nozzle Existing hot jet engine with auxiliary units for propelling aircraft with steady (continuous) or intermittent (intermittent) operation and relates to the generation of energy to operate the auxiliary equipment.

Der Betrieb der bei jedem Triebwerk für Luftfahrzeuge unerläßlichen Nebenapparate (Kraftstoffförderpumpe, -einspritzpumpe, Generator für das Bordnetz u. ä.) stößt bei Heißstrahltriebwerken der obengenannten Art auf Schwierigkeiten, weil rotierende Teile nicht vorhanden sind. Die Anordnung einer vom Fahrtwind beaufschlagten Luftschraube scheidet als Energiequelle für den Hilfsmaschinenantrieb aus, weil bekanntlich mit derartigen Heißstrahltriebwerken ausgerüstete Flugzeuge außerordentlich rasch fliegen und daher große Widerstände bei hohen Machschen Zahlen auftreten, die den Wirkungsgrad einer solchen Luftschraube stark herabsetzen. Auch der Versuch, zur Gewinnung der Energie für die Hilfsapparate einen Windmotor im Diffusor des Heißstrahltriebwerks anzuordnen, führt zu keinem befriedigenden Erfolg, weil das Strahlrohr gegen Störungen im Diffusor äußerst empfindlich ist und der Windmotor daher einen untragbaren Leistungsabfall des Strahlrohres verursachen würde.The operation of the essentials for any aircraft engine Ancillary equipment (fuel feed pump, injection pump, generator for the on-board network etc.) encounters difficulties with hot jet engines of the type mentioned above, because there are no rotating parts. The arrangement of one acted upon by the airstream Propeller is ruled out as an energy source for the auxiliary machine drive because As is known, aircraft equipped with such hot jet engines are extraordinary fly quickly and therefore great resistance occurs with high Mach numbers, which greatly reduce the efficiency of such a propeller. Even the attempt a wind motor in the diffuser of the to generate the energy for the auxiliary equipment Arranging hot jet engine does not lead to satisfactory results because that Jet pipe is extremely sensitive to interference in the diffuser and the wind motor therefore would cause an intolerable drop in performance of the radiant tube.

Die Erfindung geht von dem Gedanken aus, einen Teil derjenigen Wärme, deren Abführung aus materialtechnischen Gründen zur Kühlung unerläßlich ist, zum Betrieb der Hilfsaggregate zu yerwerten. Dabei ist es vorteilhaft, ein Dampfturbinenaggregat anzuordnen, dessen Hochdruckzwangslaufkessel am inneren Mantel der Brennkammer des Heißstrahltriebwerks angebracht ist. Zwecks Verminderung des Stirnwiderstandes für den Kondensator wird in weiterer Ausgestaltung der Erfindung vorgeschlagen, den Kondensator der Dampfanlage im inneren Mantel des Diffusors des Heißstrahltriebwerks anzubringen.The invention is based on the idea of using part of the heat whose removal is essential for reasons of material technology for cooling, for To evaluate the operation of the auxiliary equipment. It is advantageous to use a steam turbine unit to arrange the high pressure forced circulation boiler on the inner jacket of the combustion chamber of the Hot jet engine is attached. In order to reduce the forehead resistance for the capacitor is proposed in a further embodiment of the invention, the Condenser of the steam system in the inner jacket of the diffuser of the hot jet engine to attach.

Der durch die Erfindung erzielte technische Fortschritt liegt darin, daß die Energie zum Betrieb der Hilfsaggregate ohne Beeinträchtigung des Strömungsvorgangs des Heißstrahltriebwerks, . ohne Vergrößerung des Stirnwiderstandes und ohne jeden sonstigen Verlust gewonnen wird (abgesehen von der sehr geringen Erhöhung des Reibungswiderstandes im Diffusor durch Aufheizung im Kondensatorbereich).The technical progress achieved by the invention lies in that the energy to operate the auxiliary equipment without impairing the flow process of the hot jet engine,. without increasing the forehead resistance and without any other loss is gained (apart from the very slight increase in frictional resistance in the diffuser due to heating in the condenser area).

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung im Längsschnitt wesenhaft dargestellt. In dem Innenraum des aus Diffusor i, Brennkammer 2 und Rückstoßdüse 3 bestehenden Strahlrohres sind Siederohre, beispielsweise in Form einer Rohrschlange4, angeordnet, welche über eineSpeisepumpe 5 und Speiseleitung 6 mit einem Wasservorratsbehälter 7 verbunden sind. Der in dem dadurch gebildeten Hochdruckzwangslaufkessel erzeugte Dampf beaufschlagt eine Dampfturbine 8, die den Generator 9 und die bereits erwähnte Speisepumpe 5 antreibt. Der Generator 9 versorgt das Bordnetz und lädt gleichzeitig die Batterie. Der Abdampf aus der Turbine 8 gelangt über die Abdampfleitung io in den Oberflächenkondensator i i, der im Mantel des Diffusors i angeordnet 'ist und aus welchem das gewonnene Kondensat über die Kondensatleitung 12 mittels einer Kondensatpumpe 13 in den Speisewasserkreislauf zurückgedrückt wird.In the drawing, an embodiment of the invention is shown essentially in longitudinal section. Boiler pipes, for example in the form of a pipe coil 4, are arranged in the interior of the jet pipe consisting of diffuser i, combustion chamber 2 and thrust nozzle 3, which are connected to a water storage tank 7 via a feed pump 5 and feed line 6. The steam generated in the high-pressure forced-circulation boiler thus formed acts on a steam turbine 8 which drives the generator 9 and the already mentioned feed pump 5. The generator 9 supplies the vehicle electrical system and simultaneously charges the battery. The exhaust steam from the turbine 8 passes through the exhaust line io into the surface condenser ii, which is arranged in the jacket of the diffuser i and from which the condensate obtained is pushed back into the feed water circuit via the condensate line 12 by means of a condensate pump 13.

Claims (3)

PATENTANSPRÜCHE: i.Heißstrahltriebwerk zum Vortrieb vonLuftfahrzeugen, bestehend aus Diffusor, Brennkammer und Rückstdßidüse nebst Hilfsaggregaten, dadurch gekennzeichnet, dalß zum Betrieb der Hilfsaggregate die zur unerläßlichen Kühlung des Heißstrahltriebwerks abgeführte Wärmeenergie verwertet wird. PATENT CLAIMS: i.Hotjet engine for propulsion of aircraft, Consists of diffuser, combustion chamber and Rückstdßidüse together with auxiliary units, thereby characterized, that for the operation of the auxiliary units, the essential cooling the heat energy dissipated by the hot jet engine is recovered. 2. Heißstrahltriebwerk nach Anspruch i, dadurch gekennzeichnet, daß zum Antrieb der Hilfsaggregate eine Dampfturbine (8) angeordnet ist, deren Hochdruckzwangslaufkessel (d.) am inneren Mantel der Brennkammer (2) des Heißstrahltriebwerks angebracht ist. 2. Hot jet engine according to claim i, characterized in that one for driving the auxiliary units Steam turbine (8) is arranged, the high-pressure forced-flow boiler (d.) On the inner Jacket of the combustion chamber (2) of the hot jet engine is attached. 3. Heißstrahltriebwerk nach Anspruch 2, dadurch gekennzeichnet, daß der Kondensator (i i ) der Dampfanlage im inneren Mantel des Diffusors (i) des Heißstrahltriebwerks untergebracht ist.3. Hot jet engine according to claim 2, characterized in that the condenser (i i) of the steam system is housed in the inner jacket of the diffuser (i) of the hot jet engine.
DEJ2753D 1943-10-26 1943-10-26 Hot jet engine for propelling aircraft Expired DE877383C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ2753D DE877383C (en) 1943-10-26 1943-10-26 Hot jet engine for propelling aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ2753D DE877383C (en) 1943-10-26 1943-10-26 Hot jet engine for propelling aircraft

Publications (1)

Publication Number Publication Date
DE877383C true DE877383C (en) 1953-05-21

Family

ID=7197940

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ2753D Expired DE877383C (en) 1943-10-26 1943-10-26 Hot jet engine for propelling aircraft

Country Status (1)

Country Link
DE (1) DE877383C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643439A (en) * 1968-11-29 1972-02-22 Adolphe C Petersen Compound reaction propulsion means with multiple thrust

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643439A (en) * 1968-11-29 1972-02-22 Adolphe C Petersen Compound reaction propulsion means with multiple thrust

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