DE860754C - Gas flow machine, especially jet engine for aircraft or the like. - Google Patents
Gas flow machine, especially jet engine for aircraft or the like.Info
- Publication number
- DE860754C DE860754C DED6811D DED0006811D DE860754C DE 860754 C DE860754 C DE 860754C DE D6811 D DED6811 D DE D6811D DE D0006811 D DED0006811 D DE D0006811D DE 860754 C DE860754 C DE 860754C
- Authority
- DE
- Germany
- Prior art keywords
- jet engine
- nozzles
- brake
- brake nozzles
- engine according
- 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
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
- F02K1/54—Nozzles having means for reversing jet thrust
- F02K1/56—Reversing jet main flow
- F02K1/566—Reversing jet main flow by blocking the rearward discharge by means of a translatable member
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Description
Die Erfindung bezieht sich aufeine Gasströmungsmaschine, insbesondere Strahltriebwerk für Luftfahrzeuge od. dgl., und besteht in einer oder mehreren von der Hauptstrahlaustrittsüffnung abweichenden Bremsdüsen. Diese. sind der Hauptstrahlrichtung insbesondere entgegengerichtet und derart angeordnet, daß sich deren radiale Rückstoßkomponenten gegenseitig aufheben.The invention relates to a gas flow machine, in particular Jet engine for aircraft or the like., And consists of one or more of the main jet outlet opening deviating from the brake nozzles. These. are the main beam direction in particular oppositely directed and arranged in such a way that their radial recoil components cancel each other out.
Die Erfindung ergibt die Möglichkeit einer beliebigen feinstufigen Regelung der Bremswirkung und verhindert, daß der Betrieb des Strahltriebwerkes beim Bremsen nicht aussetzt.The invention provides the possibility of any finely graded Control of the braking effect and prevents the operation of the jet engine does not stop when braking.
In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt. Es zeigt dieAbbildung schematisch den rückwärtigen Teil eines Strahltriebwerkes mit der Bremseinrichtung nach der Erfindung im Längsschnitt.In the drawing, the invention is shown in one embodiment. The figure shows schematically the rear part of a jet engine with the braking device according to the invention in longitudinal section.
DieAustrittsdüsen i der ringförmig angeordneten Brennkammern _ münden unmittelbar vor einer Abgasturbine 3, die ein in der Zeichnung nicht dargestelltes Eingangsgebläse in der üblichen Weise antreibt. Hinter den Turbinenschaufeln erstreckt sich der nach hinten sich verjüngende Rückstrahldüsenkörper 4, dessen Austrittsöffnung 4a durch einen Schließkörper 5 abgeschlossen werden kann. Im geöffneten Zustand, d. h. in der-Stellung 5, bleibt zwischen dem Schließkörper 5 und der Düsenwand 4 ein trichterförmiger Kanal 6 für den Abzug der Rückstoßgase frei.The outlet nozzles i of the annularly arranged combustion chambers open out immediately in front of an exhaust gas turbine 3, which is a not shown in the drawing Drives the inlet fan in the normal way. Extends behind the turbine blades the rearwardly tapering back jet nozzle body 4, its outlet opening 4a can be closed by a closing body 5. When open, d. H. in the position 5 remains between the closing body 5 and the nozzle wall 4 a funnel-shaped channel 6 for the withdrawal of the recoil gases.
Gemäß der Erfindung ist unmittelbar hinter den Turbinenschaufeln 3 und vor der Düse 4 ein Ring von dreifach hintereinander gestaffelten Bremsdüsen 7 vorgesehen, deren Mündungen sämtlich der Austrittsöffnung 4a der Hauptdüse 4 entgegengerichtet sind. Diese Düsen werden entweder von einem inneren Ring 8 oder von einem äußeren Ring 9 oder von beiden Ringen abgedeckt. Diese Ringe sind, wie in der Abbildung strichpunktiert angedeutet ist, bis in die Stellung 8a, 9a axial verschiebbar, und mit diesen Ringen verschiebt sich auch der Schließkörper 5 bis in die Stellung 5a.According to the invention, immediately behind the turbine blades 3 and in front of the nozzle 4 a ring of brake nozzles staggered three times one behind the other 7 are provided, the mouths of which all face the outlet opening 4a of the main nozzle 4 are. These nozzles are either from an inner ring 8 or from an outer one Ring 9 or covered by both rings. These rings are as in the picture is indicated by dash-dotted lines, axially displaceable up to the position 8a, 9a, and with these rings, the closing body 5 is also displaced into position 5a.
Die Wirkungsweise der Erfindung ergibt sich aus der Abbildung ohne weiteres.The mode of operation of the invention results from the figure without additional.
In der gezeichneten Stellung halten die Ringe <8 und g die Bremsdüsen 7 geschlossen, während der Schließkörper die volle Öffnung 4a der Düse 4 freigibt. Verschiebt man die Ringe $ und 9 mit Btzug auf die Abbildung nach rechts, so verschiebt sich auch der Schließkörper 5 in der gleichen Richtung und schließt die Öffnung 4a der Düse 4 in dem Maße, als die Bremsdüsen 7 nach und nach freigegebenwerden. Die radialenRückstoßkomponenten derBremsdüsen heben sich infolgeder ringförmigen Anordnung der Bremsdüsen gegenseitig auf. Jedoch wirken ihre näch-vorn gerichteten Rückstoßkomponenten der Hauptrückstoßrichtung an der Düsenmündung 4 entgegen. Deren Rückstoßkraft nimmt gleichzeitig in dem Maße ab, als immer mehr Gas durch die Bremsdüsen 7 strömt. DieDüsen 7 wirken also in einem hohen Maße bremsend, ohne daß das Triebwerk abgeschaltet werden muß. Durch eine umgekehrte Verschiebung der Ringe und - des Schließkörpers nach links kann man die Bremswirkung wieder aufheben und die Rückstoßwirkung in der Hauptrichtung wieder verstärken.In the position shown, the rings <8 and g hold the brake nozzles 7 closed, while the closing body releases the full opening 4a of the nozzle 4. If one shifts the rings $ and 9 with reference to the figure to the right, then shifts the closing body 5 also moves in the same direction and closes the opening 4a of the nozzle 4 as the brake nozzles 7 are gradually released. The radial recoil components of the brake nozzles rise as a result of being annular Arrangement of the brake nozzles on each other. However, their forward-looking ones work Recoil components counter to the main recoil direction at the nozzle mouth 4. Whose Recoil force decreases at the same time as more and more gas through the brake nozzles 7 flows. The nozzles 7 thus have a great braking effect without the engine must be switched off. By shifting the rings and - des Closing body to the left you can cancel the braking effect and the recoil effect Reinforce in the main direction.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED6811D DE860754C (en) | 1944-07-04 | 1944-07-04 | Gas flow machine, especially jet engine for aircraft or the like. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED6811D DE860754C (en) | 1944-07-04 | 1944-07-04 | Gas flow machine, especially jet engine for aircraft or the like. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE860754C true DE860754C (en) | 1952-12-22 |
Family
ID=7031899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED6811D Expired DE860754C (en) | 1944-07-04 | 1944-07-04 | Gas flow machine, especially jet engine for aircraft or the like. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE860754C (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024756B (en) * | 1953-03-23 | 1958-02-20 | Gen Electric | Device for commissioning an aircraft main jet engine |
US2847822A (en) * | 1954-11-01 | 1958-08-19 | United Aircraft Corp | Thrust modifying device |
US2857119A (en) * | 1956-03-21 | 1958-10-21 | Morguloff Daniel | Jet steering and braking system for aircraft |
US2865169A (en) * | 1956-02-15 | 1958-12-23 | United Aircraft Corp | Jet exhaust nozzle |
US2920444A (en) * | 1956-06-05 | 1960-01-12 | Walter T Jorgensen | Pulse reaction combustion engine |
US2930185A (en) * | 1954-12-13 | 1960-03-29 | United Aircraft Corp | Exhaust noise silencer |
US2933890A (en) * | 1955-01-20 | 1960-04-26 | Boeing Co | Nozzle closing jet deflectors |
US2940258A (en) * | 1954-01-25 | 1960-06-14 | Rolls Royce | Supplying air to internal components of engines |
US2944393A (en) * | 1955-04-15 | 1960-07-12 | Phillips Petroleum Co | Aerodynamic braking of jet engine aircraft |
US2944395A (en) * | 1955-06-06 | 1960-07-12 | Doak Aircraft Co Inc | Means and methods of neutralizing and converting thrust components |
US2945346A (en) * | 1954-10-04 | 1960-07-19 | Republic Aviat Corp | Reverse thrust brake |
US2952124A (en) * | 1957-07-29 | 1960-09-13 | Boeing Co | Plug type noise suppressor and thrust reverser |
US2954668A (en) * | 1956-03-12 | 1960-10-04 | Rohr Aircraft Corp | Brake for jet airplane |
US2957306A (en) * | 1955-06-16 | 1960-10-25 | John S Attinello | Gas jets for controlling entrance and/or exit flow effective diameter |
US2961198A (en) * | 1957-01-29 | 1960-11-22 | Bell Aerospace Corp | Aircraft power plant |
US2976681A (en) * | 1957-09-17 | 1961-03-28 | Boeing Co | Clam shell thrust reversers with noise suppressors |
US2994193A (en) * | 1956-06-14 | 1961-08-01 | Gen Motors Corp | Jet thrust reversing means for jet engines |
US3002342A (en) * | 1953-08-12 | 1961-10-03 | Schatzki Erich | Mechanism for controlling relatively high velocity flow of fluids longitudinally through and laterally from ambulant conduit means |
US3177655A (en) * | 1961-01-24 | 1965-04-13 | Thiokol Chemical Corp | Rocket motor thrust termination and reversal device |
US3302890A (en) * | 1964-07-10 | 1967-02-07 | Atlantic Res Corp | Rocket nozzle |
DE1264161B (en) * | 1963-12-30 | 1968-03-21 | Gen Electric | Jet engine thruster |
DE1456037B1 (en) * | 1965-06-07 | 1970-10-01 | Gen Electric | Thrust reverser for a jet engine |
DE1481639B1 (en) * | 1965-03-17 | 1970-10-08 | Rolls Royce | Thrust reverser for jet engines |
US4592508A (en) * | 1983-10-27 | 1986-06-03 | The Boeing Company | Translating jet engine nozzle plug |
-
1944
- 1944-07-04 DE DED6811D patent/DE860754C/en not_active Expired
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024756B (en) * | 1953-03-23 | 1958-02-20 | Gen Electric | Device for commissioning an aircraft main jet engine |
US3002342A (en) * | 1953-08-12 | 1961-10-03 | Schatzki Erich | Mechanism for controlling relatively high velocity flow of fluids longitudinally through and laterally from ambulant conduit means |
US2940258A (en) * | 1954-01-25 | 1960-06-14 | Rolls Royce | Supplying air to internal components of engines |
US2945346A (en) * | 1954-10-04 | 1960-07-19 | Republic Aviat Corp | Reverse thrust brake |
US2847822A (en) * | 1954-11-01 | 1958-08-19 | United Aircraft Corp | Thrust modifying device |
US2930185A (en) * | 1954-12-13 | 1960-03-29 | United Aircraft Corp | Exhaust noise silencer |
US2933890A (en) * | 1955-01-20 | 1960-04-26 | Boeing Co | Nozzle closing jet deflectors |
US2944393A (en) * | 1955-04-15 | 1960-07-12 | Phillips Petroleum Co | Aerodynamic braking of jet engine aircraft |
US2944395A (en) * | 1955-06-06 | 1960-07-12 | Doak Aircraft Co Inc | Means and methods of neutralizing and converting thrust components |
US2957306A (en) * | 1955-06-16 | 1960-10-25 | John S Attinello | Gas jets for controlling entrance and/or exit flow effective diameter |
US2865169A (en) * | 1956-02-15 | 1958-12-23 | United Aircraft Corp | Jet exhaust nozzle |
US2954668A (en) * | 1956-03-12 | 1960-10-04 | Rohr Aircraft Corp | Brake for jet airplane |
US2857119A (en) * | 1956-03-21 | 1958-10-21 | Morguloff Daniel | Jet steering and braking system for aircraft |
US2920444A (en) * | 1956-06-05 | 1960-01-12 | Walter T Jorgensen | Pulse reaction combustion engine |
US2994193A (en) * | 1956-06-14 | 1961-08-01 | Gen Motors Corp | Jet thrust reversing means for jet engines |
US2961198A (en) * | 1957-01-29 | 1960-11-22 | Bell Aerospace Corp | Aircraft power plant |
US2952124A (en) * | 1957-07-29 | 1960-09-13 | Boeing Co | Plug type noise suppressor and thrust reverser |
US2976681A (en) * | 1957-09-17 | 1961-03-28 | Boeing Co | Clam shell thrust reversers with noise suppressors |
US3177655A (en) * | 1961-01-24 | 1965-04-13 | Thiokol Chemical Corp | Rocket motor thrust termination and reversal device |
DE1264161B (en) * | 1963-12-30 | 1968-03-21 | Gen Electric | Jet engine thruster |
US3302890A (en) * | 1964-07-10 | 1967-02-07 | Atlantic Res Corp | Rocket nozzle |
DE1481639B1 (en) * | 1965-03-17 | 1970-10-08 | Rolls Royce | Thrust reverser for jet engines |
DE1456037B1 (en) * | 1965-06-07 | 1970-10-01 | Gen Electric | Thrust reverser for a jet engine |
US4592508A (en) * | 1983-10-27 | 1986-06-03 | The Boeing Company | Translating jet engine nozzle plug |
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