DE873332C - Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening - Google Patents

Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening

Info

Publication number
DE873332C
DE873332C DED6806D DED0006806D DE873332C DE 873332 C DE873332 C DE 873332C DE D6806 D DED6806 D DE D6806D DE D0006806 D DED0006806 D DE D0006806D DE 873332 C DE873332 C DE 873332C
Authority
DE
Germany
Prior art keywords
exhaust gases
energy
mixing tube
dampening
improved utilization
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
DED6806D
Other languages
German (de)
Inventor
Erwin Dipl-Ing Schnetzer
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DED6806D priority Critical patent/DE873332C/en
Application granted granted Critical
Publication of DE873332C publication Critical patent/DE873332C/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
    • F02K7/00—Plants 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
    • F02K7/10—Plants 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
    • F02K7/12—Injection-induction jet engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Description

Das Patent 847 2333 betrifft eine Einrichtung zur verbesserten Ausnutzung der Energie d!er Abgase durch Erzeugung von Rückstoß unter gleichzeitiger Flammendämpfung, bei welcher die Abgase durch Rückstoßdüsen in ein an seinen Enden offenes Mischrohr eingeleitet werden. In ,dem Mischrohr ist hinter der letzten Rückstoßdüse ein Schaufelrad angeordnet, so daß die Auspuffflammen am Ende des Mischrohres. infolge Kühlung durch die Mischluft vernichtet sind. Nun kommt es aber bei gewissen Flugzeugen, z. B. Jagdflugzeugen, vor allem darauf an, die Auspuffflammen gegen Sicht von vorn abzudecken-.The patent 847 2333 relates to a device for improved utilization the energy of the exhaust gases by generating recoil with simultaneous flame suppression, in which the exhaust gases pass through thrust nozzles into a mixing tube that is open at its ends be initiated. In, the mixing tube is a paddle wheel behind the last thrust nozzle arranged so that the exhaust flames at the end of the mixing tube. due to cooling the mixed air is destroyed. But now it comes with certain aircraft, z. B. Fighter planes, above all, to cover the exhaust flames against view from the front.

In vorteilhafter Ausgestaltung des Gegenstands. des Patents 847 233 ist daher gemäß der vorliegenden Erfindung das Schaufelrad am Eintrittsende des Mischrohres angeordnet und: weist in Sichtrichtung sich überdeckende Schaufeln auf.In an advantageous embodiment of the object. of patent 847 233 is therefore according to the present invention, the paddle wheel at the inlet end of the Mixing tube arranged and: has in the viewing direction overlapping blades.

Gegenüber dem bisher verwerndeten@ Sichtschutzgitter mit sich überdeckenden, in dem Mischrohr fest( angeordneten Leitblechen hat die erfindungsgemäße Einrichtung den unverkennbaren Vorteil, daß die Strömung der Frischluft durch das Schaufelrad kaum beeinträchtigt wird, weil die in der Lagerung -des Rades zu überwindende Reibung sehr niedrig gehaltem werden kann.Compared to the previously used @ privacy screen with overlapping, The device according to the invention has fixed guide plates arranged in the mixing tube the unmistakable advantage that the flow of fresh air through the paddle wheel is hardly affected because of the friction to be overcome in the bearing of the wheel can be kept very low.

In der Zeichnung ist die Erfindung in beispielsweiser Ausführung wiedergegeben. Es zeigt Abt(. i einen Längsschnitt durch den vorderen-Teil des Mischrohres mit der ersten Rückstoßdüse, Abt( 2 einen Schnitt nach der Linie 2-2 der Abt(. si@ und Abb. 3 einen Schnitt nach der Linie 3-3 _ der Abb.2@. . Die Rückstoßdüsen 3. eines im übrigen nicht .dargestellten Auspuffflugmotors, münden entgegengesetzt zu der Flugrichtung g in das an seinen Enden offene Mischrohr 8 ein. Vor der ersten Rückstoßdüse 3 ist in dein vorderen Ende 6 des Mischrohres 8 ein Schaufelrad 13 angeordnet, dessen Achse 12 an zwei Stellen 1.4, i4' gelagert ist. Die Schaufeln 16 des Schaufelrades 13 sind so angeordnet, daß sie sich, in der Flugrichtung gesehen, überdecken. Dadurch wird. eine vollständige Abdeckung der Auspuffflammen gegen Sicht von vorn erreicht. Die Frischluft wird beim Hindurchströmen durch das Schaufelrad kaum umgelenkt, während die Reibung in den Lagerstellen 14, 14' auf ein sehr geringes Maß beschränkt werden kann. Ein nennenswerter Energieaufwand ist also bei Anwendung der erfindungsgemäßen Einrichtung nicht erforderlich.In the drawing, the invention is shown in an exemplary embodiment. It shows Abt (. I a longitudinal section through the front part of the mixing tube with the first recoil nozzle, abbot (2 a section after the line 2-2 of the abbot (. si @ and Fig. 3 a section along the line 3-3 _ of Fig.2 @. . The thrust nozzles 3. one Otherwise, not .represented exhaust aircraft, open opposite to the Direction of flight g into the mixing tube 8, which is open at its ends. In front of the first thruster 3, a paddle wheel 13 is arranged in your front end 6 of the mixing tube 8, the Axis 12 is mounted at two points 1.4, i4 '. The blades 16 of the paddle wheel 13 are arranged so that they overlap, seen in the direction of flight. Through this will. complete coverage of the exhaust flames from the front. The fresh air is hardly deflected when flowing through the paddle wheel, while the friction in the bearing points 14, 14 'can be limited to a very low level can. A notable expenditure of energy is therefore when using the invention Setup not required.

Claims (1)

PATENTANSPRUCH: Einrichtung zur verbesserten Ausnutzung der Energie der Abgase durch Erzeugung von Rückstoß unter gleichzeitiger Flammendiämpfung, bei .der die Abgase jeder Motorseite mittels Rückstofdüsen in ein an seinen Enden offenes Mischrohr eingeleitet werden und in dem Mischrohr ein Schaufelrad mit sich überdeckenden Schaufeln angeordnet ist, nach Patent 847 233, dadurch gekennzeichnet, daß das Schaufelrad am Eintrittsende des Mischrohres angeordnet ist und, in Flugrichtung gesehen, sich überdeckende Schaufeln aufweist.PATENT CLAIM: Device for improved use of energy of the exhaust gases by generating recoil with simultaneous flame suppression .der the exhaust gases from each engine side by means of return nozzles into an open at its ends Mixing tube are introduced and in the mixing tube a paddle wheel with overlapping Paddles arranged according to patent 847 233, characterized in that the paddle wheel is arranged at the inlet end of the mixing tube and, seen in the direction of flight, itself having overlapping blades.
DED6806D 1944-09-23 1944-09-23 Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening Expired DE873332C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED6806D DE873332C (en) 1944-09-23 1944-09-23 Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED6806D DE873332C (en) 1944-09-23 1944-09-23 Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening

Publications (1)

Publication Number Publication Date
DE873332C true DE873332C (en) 1953-04-13

Family

ID=7031897

Family Applications (1)

Application Number Title Priority Date Filing Date
DED6806D Expired DE873332C (en) 1944-09-23 1944-09-23 Device for improved utilization of the energy of the exhaust gases by generating recoil with simultaneous flame dampening

Country Status (1)

Country Link
DE (1) DE873332C (en)

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