DE1210257B - Solid rocket engine and method of making the same - Google Patents
Solid rocket engine and method of making the sameInfo
- Publication number
- DE1210257B DE1210257B DEA37874A DEA0037874A DE1210257B DE 1210257 B DE1210257 B DE 1210257B DE A37874 A DEA37874 A DE A37874A DE A0037874 A DEA0037874 A DE A0037874A DE 1210257 B DE1210257 B DE 1210257B
- Authority
- DE
- Germany
- Prior art keywords
- drive set
- sleeve
- combustion chamber
- conical
- insulating layer
- 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.)
- Pending
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
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/32—Constructional parts; Details not otherwise provided for
- F02K9/36—Propellant charge supports
-
- 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
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/10—Shape or structure of solid propellant charges
- F02K9/20—Shape or structure of solid propellant charges of the external-burning type
-
- 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
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/24—Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges
-
- 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
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/32—Constructional parts; Details not otherwise provided for
- F02K9/34—Casings; Combustion chambers; Liners thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Description
BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES W¥W PATENTAMTFEDERAL REPUBLIC OF GERMANY GERMAN W ¥ W PATENT OFFICE Int. CL:Int. CL:
F02kF02k
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag: Number: File number: Filing date:
Display day:
Deutsche Kl.: 46 g-1/01 German class: 46 g -1/01
1210257
A 378741 a/46 g
14. Juli 1961
3. Februar 19661210257
A 378741 a / 46 g
July 14, 1961
3rd February 1966
Beim Arbeitsverlauf eines Raketentriebwerks wird oft die Forderung gestellt, daß eine Serie von Operationen in zeitlich bestimmter Folge ausgelöst wird. Als Beispiel kann ein Triebwerk angeführt werden, das eine Rakete bis zu einer gewissen Höhe fördert, worauf ein Leuchtkörper entzündet und ausgeworfen und ein Fallschirm entfaltet wird.The work of a rocket engine often requires that a series of operations is triggered in a specific time sequence. An engine can be cited as an example, that propels a rocket up to a certain height, whereupon a flare is ignited and ejected and a parachute is deployed.
Die einfachste Lösung dieses Problems (z. B. bei den gewöhnlichen Feuerwerksraketen) ist darauf abgestellt, daß sich die Verbrennungszone des in der Brennkammer befindenden Brennstoffes derart verschiebt, daß sie nach einer vorausbestimmten Zeit einen Punkt erreicht, in welchem ein Impuls gegeben wird, der eine neue Operation einleitet. Die pyrotechnische Terminologie bezeichnet einen solchen Vorgang als »Verzögerung«. Die zeitliche Bestimmung ist jedoch mit Hilfe des üblichen Verfahrens ungenau; mögliche Drücke in der Brennkammer sind verhältnismäßig gering (5 bis 10 atü).The simplest solution to this problem (e.g. with the ordinary fireworks rockets) is on it turned off that the combustion zone of the fuel in the combustion chamber shifts in such a way that that after a predetermined time it reaches a point at which an impulse is given initiating a new operation. The pyrotechnic terminology denotes one Process as "delay". The time determination is, however, imprecise with the help of the usual method; possible pressures in the combustion chamber are relatively low (5 to 10 atmospheres).
Triebwerke für qualifizierte Zwecke bestehen demgegenüber meistens aus einer Metallhülse und einem Antriebssatz, der eine energiereichere Zusammenstellung und größere mechanische Festigkeit als die üblichen Preßmaschinen aus Schwarzpulver aufweist.In contrast, engines for qualified purposes usually consist of a metal sleeve and a Drive set that has a more energetic composition and greater mechanical strength than the having conventional pressing machines made of black powder.
Die Laufgeschwindigkeit der Verbrennungszone (lotrecht zur Feuerfiäche) wird durch die FormelThe running speed of the combustion zone (perpendicular to the fire surface) is given by the formula
c = k · poc c = k * poc
charakterisiert, wobei c die Geschwindigkeit, k eine Konstante, ρ der Druck in der Brennkammer und α ein experimentell feststellbarer Faktor ist.characterized, where c is the speed, k is a constant, ρ is the pressure in the combustion chamber and α is a factor that can be determined experimentally.
Für Schwarzpulvermassen beträgt der α-Wert 0,7 bis 0,9; charakteristisch ist jedoch für mehr qualifizierte Antriebssätze, daß der α-Wert teils geringer ist, teils kleineren Schwankungen unterliegt, so daß die Unterschiede zwischen gleichen Antriebssätzen geringer sind.For black powder masses, the α value is 0.7 to 0.9; is characteristic, however, of more skilled Drive sets that the α-value is partly lower, partly subject to smaller fluctuations, so that the differences between the same drive sets are smaller are.
Die Voraussetzungen dafür, einen zeitlich bestimmten Verlauf (Verzögerungen) mit enger Toleranz zu erreichen, wurden somit prinzipiell verbessert.The prerequisites for a time-specific course (delays) with close tolerance to achieve, have thus been improved in principle.
Innerhalb des ganzen Druckgebietes, jedoch mit besonderer Betonung der gewünschten höheren Drücke (10 bis 100 atü), stößt man aber auf eine Schwierigkeit, die als ein Kanteneffekt bezeichnet werden kann.Within the entire pressure range, but with special emphasis on the desired higher pressures (10 to 100 atm), one encounters a difficulty that can be described as an edge effect.
Rein geometrisch betrachtet, kann nämlich behauptet werden, daß der Antriebssatz eine nach vorn gewendete Fläche besitzen muß, zu welcher die Verbrennungszone am Ende der Verzögerungszeit gelangt.From a purely geometrical point of view, it can be said that the propulsion set is a forward must have turned surface to which the combustion zone arrives at the end of the delay time.
Es ist erwünscht, daß die Isolierschicht an dem Antriebssatz gut anhaftet, um zu verhindern, daß die
Verbrennungszone schneller an der Grenzfläche als innerhalb dieser verläuft. Die Isolierschicht soll
Feststoff-Raketentriebwerk und Verfahren zur
Herstellung desselbenIt is desirable that the insulating layer adhere well to the drive assembly in order to prevent the combustion zone from passing faster at the interface than within it. The insulating layer is intended to solid-fuel rocket engine and process
Making the same
Anmelder:Applicant:
Aktiebolaget Gatex, Göteborg (Schweden)Aktiebolaget Gatex, Gothenburg (Sweden)
Vertreter:Representative:
Dipl.-Ing. D. Jander, Patentanwalt,Dipl.-Ing. D. Jander, patent attorney,
Berlin 33, Hüttenweg 15Berlin 33, Hüttenweg 15
Als Erfinder benannt:Named as inventor:
Lars Douglas Aberg, Göteborg (Schweden)Lars Douglas Aberg, Gothenburg (Sweden)
Beanspruchte Priorität:Claimed priority:
Schweden vom 28. Juli 1960 (7306)Sweden of July 28, 1960 (7306)
weiter gut gegen die Wandung der Verbrennungskammer abdichten, um das Vorbeiströmen brennender Gase und dadurch bedingte verkürzte Verzögerung zu verhindern. Der Abstand zwischen dem Antriebssatz und der genannten Wandung steigt immer zu Beginn des Triebwerkbetriebs auf Grund der Temperaturerhöhung (bis zur Größenordnung 30000C) und Druckerhöhung (bis zur Größenordnung 100 atü). Bei bisher gebräuchlichen Raketentriebwerken verschiedener Gattung wurden als praktisch anwendbare Drücke Variationen der Verzögerungszeit von ±25 % und außerdem auch einzelne Abweichungen von diesen Werten als normal angesehen.continue to seal well against the wall of the combustion chamber in order to prevent burning gases from flowing past and the resulting shortened delay. The distance between the drive set and the mentioned wall always increases at the beginning of the engine operation due to the temperature increase (up to the order of 3000 ° C.) and pressure increase (up to the order of 100 atmospheres). In the case of rocket engines of various types in use up to now, variations in the delay time of ± 25% and also individual deviations from these values were regarded as normal as practically applicable pressures.
Vorliegende Erfindung bezweckt unter anderem, in genannter Hinsicht die Raketentriebwerke wesentlich zu verbessern. Als Beispiel kann erwähnt werden, daß bei einer Prüfungsserie die Raketentriebwerke gemäß der Erfindung bei einer Verzögerungszeit von 5,5 Sekunden eine Toleranz von nur ± 0,1 Sekunde aufwiesen.The present invention aims, inter alia, in the above-mentioned respect, essentially with rocket engines to improve. As an example it can be mentioned that in a series of tests the rocket engines according to the invention with a delay time of 5.5 seconds a tolerance of only ± 0.1 second exhibited.
Die Erfindung bezieht sich demgemäß auf Raketentriebwerke mit einer Brennkammer und einem in dieser angebrachten Antriebssatz, welcher durch eine kegelige Ausbildung des Antriebssatzes und einer als Sitz dafür dienenden, dazu kongruent kegeligen Brennkammerwand festgehalten wird und welcher mit einer vorderen Partie, die den Verzögerungsteil des Antriebssatzes ausmacht, durch eine den Verzögerungsteil peripher umgebende Isolierschicht an die Wand der Brennkammer angeschlossen ist. Der Erfindungsgedanke ist dabei im wesentlichen durch die Kombination gekennzeichnet, daß nur der Ver-The invention accordingly relates to rocket engines with a combustion chamber and an in this attached drive set, which by a conical design of the drive set and a Seat serving for this purpose, congruently tapered combustion chamber wall is held and which one with a front part, which makes up the deceleration part of the drive set, through one the deceleration part peripherally surrounding insulating layer is connected to the wall of the combustion chamber. Of the The idea of the invention is essentially characterized by the combination that only the
609 503/109609 503/109
Claims (1)
näher verdeutlicht werden. Es zeigt Die Konizität des Verzögerungsteils Γ bzw. Hülsen-The invention is intended with reference to a connected in the sleeve 2, the production of the rocket drawing as an example embodiment shown thrusters is ended (Fig. 1).
be clarified in more detail. It shows the conicity of the delay part Γ or the sleeve
■die die Verzögerung ausmacht und von einer Isolier- Die mit dem neuen Raketentriebwerk erreichtenIn the drawing, 1 is the drive set, z. B. 40 metal and a drive set 1 and insulating layer, a plastic powder body with high mechanical strength from the material specified above, for example, is referred to. This body is in part that with a. A conicity of between about 4 and 6 ° along its axial length, for example cylindrical. The conicity can be formed with other materials and at one end section Γ varies between approximately 3 and 30 °. Eventually, truncated cone can be over. The inside of the sleeve part 2 'forming the combustion chamber 4 45 must be roughened, sleeve 2 has a front conical part 2' with to increase the friction between the insulating layer and the same conicity as the part 1 'of the drive set, called sleeve part,
■ that makes up the delay and reached by an isolating die with the new rocket engine
Mittels hergestellt sein. Der Antriebssatz 1 weistlayer 3 is surrounded, through the mediation of which the good results can be ascribed to the fact that the drive set part 1 'is closely connected to the inner wall of the 50 that the sleeve part 2' which is conical due to the work of the engine is connected. The resulting axial force contributes to pressing the sealing material of the insulating layer or the insulating sleeve 3 surfaces, furthermore that any shifts from a number of leaned paper wraps only occur in the interface between the burning or from another suitable chamber sleeve and insulating layer and that combustible material the slower burns 55 the forces that tend to burn the combustion chamber as the drive set. The insulation could also expand from the sleeve, at the same time also need to deform the entire material of a layer of an appropriate, paintable on the conical part.
Be made by means of. The drive set 1 has
Deutsche Auslegeschrift Nr. 1 003 516.Considered publications:
German interpretation document No. 1 003 516.
Deutsches Patent Nr. 1 093 621.Legacy Patents Considered:
German Patent No. 1 093 621.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE730660 | 1960-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1210257B true DE1210257B (en) | 1966-02-03 |
Family
ID=20270999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA37874A Pending DE1210257B (en) | 1960-07-28 | 1961-07-14 | Solid rocket engine and method of making the same |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1210257B (en) |
GB (1) | GB944355A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL439066A1 (en) * | 2021-09-29 | 2023-04-03 | Sieć Badawcza Łukasiewicz - Instytut Lotnictwa | Solid rocket propellant grain |
CN114483376B (en) * | 2021-12-31 | 2023-03-28 | 北京灵动飞天动力科技有限公司 | Internal supporting device for vertical storage engine and application of internal supporting device |
CN117072346A (en) * | 2023-10-17 | 2023-11-17 | 沈阳航天新光集团有限公司 | Device for connecting combustion chamber and injector in thrust chamber |
CN118188219A (en) * | 2024-05-16 | 2024-06-14 | 西安现代控制技术研究所 | Composite heat insulation structure for large-caliber engine charging combustion chamber |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003516B (en) * | 1954-05-14 | 1957-02-28 | Soc Tech De Rech Ind | Drive for powder-propelled rockets or self-propelled projectiles |
-
1961
- 1961-07-14 DE DEA37874A patent/DE1210257B/en active Pending
- 1961-07-17 GB GB2579461A patent/GB944355A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003516B (en) * | 1954-05-14 | 1957-02-28 | Soc Tech De Rech Ind | Drive for powder-propelled rockets or self-propelled projectiles |
Also Published As
Publication number | Publication date |
---|---|
GB944355A (en) | 1963-12-11 |
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