DE2357303C3 - Solid propellant charge - Google Patents

Solid propellant charge

Info

Publication number
DE2357303C3
DE2357303C3 DE19732357303 DE2357303A DE2357303C3 DE 2357303 C3 DE2357303 C3 DE 2357303C3 DE 19732357303 DE19732357303 DE 19732357303 DE 2357303 A DE2357303 A DE 2357303A DE 2357303 C3 DE2357303 C3 DE 2357303C3
Authority
DE
Germany
Prior art keywords
propellant charge
solid propellant
vehicles
safety devices
gas generators
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
DE19732357303
Other languages
German (de)
Other versions
DE2357303B2 (en
DE2357303A1 (en
Inventor
Siegfried 8021 Taufkirchen Wolf
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.)
Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH
Original Assignee
Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH
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 Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH filed Critical Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH
Priority to DE19732357303 priority Critical patent/DE2357303C3/en
Publication of DE2357303A1 publication Critical patent/DE2357303A1/en
Publication of DE2357303B2 publication Critical patent/DE2357303B2/en
Application granted granted Critical
Publication of DE2357303C3 publication Critical patent/DE2357303C3/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00Explosive charges characterised by form or shape but not dependent on shape of container
    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06DMEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C06D5/06Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Die Erfindung bezieht sich auf eine Feststofftreibladung, insbesondere für Gaserzeuger von Sicherheitsvorrichtungen in Fahrzeugen zum Schutz von Personen bei Unfällen.The invention relates to a solid propellant charge, in particular for gas generators in safety devices in vehicles to protect people in the event of an accident.

Bei derartigen Feststofftreibladungen ist es erforderlich, ein annäherrd rechteckiges Arbeitsdiagramm zu erhalten, d- h. den erzeugten Gasdruck über die Zeit annähernd konstant zu halten. Um dieses Ziel zu erreichen, sind z. B. sogenannte Sterninnenbrenner oder auch Stirnbrenner bekannt Diese bekannten Brenner sind jedoch als Gaserzeuger von Sicherheitsvorrichtungen in Fahrzeugen nur unter großem Aufwand verwendbar, weil sie zur Erzielung des gewünschten Abbrandverlaufs an bestimmten Stellen isoliert werden müssen. Ein weiterer Nachteil der bekannten Brenner besteht darin, daß sie für die Verwendung in Sicherheitsvorrichtungen in Fahrzeugen (Gasgeneratoren) nur unter Zusatz von Bindemitteln benutzt werden können, wodurch dem erzeugten Gas Giftstoffe (CO) zugeführt werden, was fm die Verwendung in Personenkraftwagen unzulässig ist.In the case of solid propellant charges of this type, it is necessary to use an approximately rectangular working diagram received, i.e. to keep the generated gas pressure approximately constant over time. To achieve this goal achieve are z. B. so-called star inner burner or forehead burner known These known burners However, as gas generators for safety devices in vehicles, they only require great effort can be used because they are isolated at certain points in order to achieve the desired charring process have to. Another disadvantage of the known burner is that they are suitable for use in Safety devices in vehicles (gas generators) can only be used with the addition of binding agents can, as a result of which toxins (CO) are added to the gas produced, which is fm its use in Passenger car is not permitted.

Es sind weiterhin Brenner für die vorgenannte Verwendung in Form einer Zylinderbüchse oder in Topfform vorgeschlagen worden. Diese Art von Brennern ergeben zwar eine annäherd konstante Druckkurve während des Abbrennvorganges, sie haben aber nur eine geringe mechanische FestigkeitThere are also burners for the aforementioned use in the form of a cylinder liner or in Pot shape has been proposed. These types of burners result in a more or less constant one Pressure curve during the burning process, but they only have a low mechanical strength

Aufgabe der Erfindung ist daher die Schaffung einer Feststofftreibladung guter mechanischer Festigkeit bei billiger Herstellung, welche nicht isoliert werden muß, keine Bindemittel enthält und ein annähernd rechteckiges Arbeitsdiagramm (Druck in Abhängigkeit von der Zeit) ergibtThe object of the invention is therefore to create a solid propellant charge with good mechanical strength cheap production, which does not have to be isolated, does not contain any binders and is approximately rectangular Working diagram (pressure as a function of time) results

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Treibladung aus mehreren kreiszylindrischen Presslingen besteht, die im Querschnitt H-f3rmig gestaltet sind, wobei die Wandstärken des Mantels und Verbindungssteges gleich sind.This object is achieved according to the invention in that the propellant charge consists of several circular cylindrical There are pellets, which are designed H-shaped in cross-section, the wall thicknesses of the shell and Connecting web are the same.

Durch die erfindungsgemäße Gestaltung der Treibladung wird infolge der abstützenden und versteifenden Wirkung des Verbindungssteges eine hohe Festigkeit erzielt Ferner bietet bei beidseitigem Innenabbrand die Η-Form ein günstiges Oberflächenverhältnis zum Rauminhalt der Ladung an.The inventive design of the propellant charge is due to the supporting and stiffening The effect of the connecting web achieves a high level of strength Η-shape has a favorable surface ratio to the volume of the load.

Außerdem eignet sich diese Form gut zur Herstellung der Treibladungen durch Pressen, insofern als Matrize und Stempel relativ einfach sind und beim Preßvorgang praktisch keine »Materialverschiebungen« sondern nur Druckbeanspruchungen für das körnige oder staubförmige Preßgut auftreten, so daß eine hohe Materialdichte und Homogenität erreicht wird.In addition, this shape is well suited for the production of propellant charges by pressing, in so far as a die and punches are relatively simple and only practically no "material shifts" during the pressing process Compressive stresses for the granular or dusty Material to be pressed occur, so that a high material density and homogeneity is achieved.

In der Figur ist die Erfindung perspektivisch dargestellt Die Treibstoffladung besteht aus einer Anzahl von kreiszylindrischen Presslingen 1, die im Querschnitt H-förmig gestaltet sind. Der Mantel 2 bzw. 2a des Presslings sowie sein Steg 3 haben die gleiche Wandstärke (Webstärke). Die obere Bohrung 4 ist identisch mit der unteren Bohrung 5.In the figure, the invention is shown in perspective. The fuel charge consists of a Number of circular cylindrical pellets 1, which are designed to be H-shaped in cross section. The coat 2 resp. 2a of the compact and its web 3 have the same wall thickness (weave thickness). The upper hole 4 is identical to the lower hole 5.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: 1. Feststofftreibladung, insbesondere für Gaserzeuger von Sicherheitsvorrichtungen in Fahrzeugen zum Schutz von Personen bei Unfällen, dadurch gekennzeichnet, daß die Treibladung aus mehreren kreiszylindrischen Presslingen besteht, die im Querschnitt H-förmig gestaltet sind, wobei die Wandstärken des Mantels und Verbindungssteges gleich sind.1. Solid propellant charge, especially for gas generators of safety devices in vehicles to protect people in the event of an accident, thereby characterized in that the propellant charge consists of several circular cylindrical pellets which are designed H-shaped in cross-section, the wall thicknesses of the jacket and connecting web are the same.
DE19732357303 1973-11-16 1973-11-16 Solid propellant charge Expired DE2357303C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732357303 DE2357303C3 (en) 1973-11-16 1973-11-16 Solid propellant charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732357303 DE2357303C3 (en) 1973-11-16 1973-11-16 Solid propellant charge

Publications (3)

Publication Number Publication Date
DE2357303A1 DE2357303A1 (en) 1975-05-28
DE2357303B2 DE2357303B2 (en) 1979-07-26
DE2357303C3 true DE2357303C3 (en) 1982-04-22

Family

ID=5898312

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732357303 Expired DE2357303C3 (en) 1973-11-16 1973-11-16 Solid propellant charge

Country Status (1)

Country Link
DE (1) DE2357303C3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3247929B2 (en) 1995-11-14 2002-01-21 ダイセル化学工業株式会社 Gas generating composition
US6497774B2 (en) 1996-07-22 2002-12-24 Daicel Chemical Industries, Ltd. Gas generant for air bag
US6527886B1 (en) * 1996-07-22 2003-03-04 Daicel Chemical Industries, Ltd. Gas generant for air bag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT

Also Published As

Publication number Publication date
DE2357303B2 (en) 1979-07-26
DE2357303A1 (en) 1975-05-28

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee