DE19813949A1 - Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion - Google Patents

Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion

Info

Publication number
DE19813949A1
DE19813949A1 DE1998113949 DE19813949A DE19813949A1 DE 19813949 A1 DE19813949 A1 DE 19813949A1 DE 1998113949 DE1998113949 DE 1998113949 DE 19813949 A DE19813949 A DE 19813949A DE 19813949 A1 DE19813949 A1 DE 19813949A1
Authority
DE
Germany
Prior art keywords
fuel
combustion
air mixture
high pressure
spark plugs
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.)
Withdrawn
Application number
DE1998113949
Other languages
German (de)
Inventor
Geb Hering Heise
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
Priority to DE1998113949 priority Critical patent/DE19813949A1/en
Publication of DE19813949A1 publication Critical patent/DE19813949A1/en
Withdrawn legal-status Critical Current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
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/80—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by thrust or thrust vector control
    • F02K9/82—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by thrust or thrust vector control by injection of a secondary fluid into the rocket exhaust gases
    • 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
    • F02K7/14—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 with external combustion, e.g. scram-jet engines

Abstract

The aircraft jet propulsion system uses an injection of water (3) under pressure into the combustion zone (4) in addition to the injected mixture of fuel/air. The high temp. converts it into hydrogen and oxygen. The continuous combustion of the fuel/air mixture is improved by the use of laser spark plugs (1).

Description

Bei herkömmlichen Luftstrahltriebwerken wird die Vorschubkraft für Flugkörper durch die Be­ schleunigung der durchströmenden Luft entgegen der Flugrichtung durch das Verdichten der Luft und das kontinuierliche Einspritzen von Kraftstoff erzeugt, der durch die Verbrennung und Um­ wandlung in Gas in einer Vorschubdüse in kinetische Energie umgewandelt wird.In conventional air jet engines, the thrust force for missiles is determined by the loading acceleration of the air flowing through against the direction of flight by compressing the air and the continuous injection of fuel generated by the combustion and order conversion into gas in a feed nozzle is converted into kinetic energy.

Die Erfindung verbessert diesen Effekt durch das Einspritzen von Wasser (3) in den Verbrennungs­ raum (4). Das durch die Reibung der Luft im Lufteinlauf (5) und am Zentralkörper (6) sich selbst entzündende Kraftstoff-Luftgemisch wird im Verbrennungsraum (4) aufgrund der hohen Geschwin­ digkeit des Gasstromes (9) nicht vollständig verbrannt. Das mit hohem Druck eingespritzte Wasser (3) wird durch die Temperatur im Verbrennungsraum (4) zerlegt in Wasserstoff und Sauerstoff. Durch den hohen Druck des Einspritzens des Wassers (3) entgegen der Gasströmung (9) erfolgt dies nicht auf einmal und bewirkt eine Verwirbelung von Teilen des Gasstroms (9). Diese Verwirbe­ lung erfolgt besonders unmittelbar vor den Kraftstoffleitungen mit Einspritzdüsen (7) und im Rand­ bereich der Lavaldüse (2); die Vermischung des Wasserstoffs und Sauerstoffs mit den bereits vor­ handenen Kraftstoff-Luftgemisch und mit den vorhandenen Verbrennungsgasen bewirkt eine ver­ besserte Verbrennung und eine Erhöhung der Leistung. Die Laserzündkerzen (1) bewirken eine voll­ ständigere Verbrennung des Kraftstoff-Luftgemisches und sichern damit einen geringeren Schad­ stoffausstoss.The invention improves this effect by injecting water ( 3 ) into the combustion chamber ( 4 ). The self-igniting fuel-air mixture due to the friction of the air in the air inlet ( 5 ) and on the central body ( 6 ) is not completely burned in the combustion chamber ( 4 ) due to the high speed of the gas flow ( 9 ). The water ( 3 ) injected at high pressure is broken down into hydrogen and oxygen by the temperature in the combustion chamber ( 4 ). Due to the high pressure of injecting the water ( 3 ) against the gas flow ( 9 ), this does not happen all at once and causes parts of the gas flow ( 9 ) to swirl. This intermingling takes place particularly directly in front of the fuel lines with injection nozzles ( 7 ) and in the edge area of the Laval nozzle ( 2 ); Mixing the hydrogen and oxygen with the existing fuel-air mixture and with the existing combustion gases results in improved combustion and an increase in performance. The laser spark plugs ( 1 ) cause the fuel-air mixture to burn more completely and thus ensure lower pollutant emissions.

Claims (2)

1. Staustrahltriebwerk, dadurch gekennzeichnet, dass zusätzlich zum Kraftstoff-Luftgemisch Wasser mit hohem Druck in den Verbrennungsraum eines Triebwerkes zu spritzen und durch hohen Druck und hohe Temperatur in Wasserstoff und Sauerstoff zu zerlegen ist.1. ramjet, characterized in that in addition to the fuel-air mixture, water must be injected at high pressure into the combustion chamber of an engine and broken down into hydrogen and oxygen by high pressure and high temperature. 2. Staustrahltriebwerk nach dem Anspruch 1, dadurch gekennzeichnet, dass die kontinuierliche Ver­ brennung des Kraftstoff-Luftgemisches durch Laserzündkerzen zu verbessern ist.2. ramjet according to claim 1, characterized in that the continuous Ver combustion of the fuel-air mixture is to be improved by laser spark plugs.
DE1998113949 1998-03-28 1998-03-28 Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion Withdrawn DE19813949A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998113949 DE19813949A1 (en) 1998-03-28 1998-03-28 Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998113949 DE19813949A1 (en) 1998-03-28 1998-03-28 Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion

Publications (1)

Publication Number Publication Date
DE19813949A1 true DE19813949A1 (en) 2000-02-10

Family

ID=7862805

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998113949 Withdrawn DE19813949A1 (en) 1998-03-28 1998-03-28 Aircraft jet engine uses an additional injection of water under high pressure into the combustion zone with the fuel/air mixture for increased thrust and with laser spark plugs for continuous combustion

Country Status (1)

Country Link
DE (1) DE19813949A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661633C1 (en) * 2017-11-09 2018-07-17 Петр Викторович Соловьев Method of use of an air-jet engine or propulsion device under water
CN109340818A (en) * 2018-09-29 2019-02-15 南京航空航天大学 A kind of engine chamber with guidance combustion chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661633C1 (en) * 2017-11-09 2018-07-17 Петр Викторович Соловьев Method of use of an air-jet engine or propulsion device under water
CN109340818A (en) * 2018-09-29 2019-02-15 南京航空航天大学 A kind of engine chamber with guidance combustion chamber
CN109340818B (en) * 2018-09-29 2019-08-23 南京航空航天大学 A kind of engine chamber with guidance combustion chamber

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