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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Imprimir: 2150-766X
ISSN On-line: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i4.10
pages 267-280

BASIC STUDY OF GAS GENERANT IN AIR BAG INFLATORS

Shogo Tomiyama
Daicel Chemical Industries, LTD. 805 Umaba Ibogawa-cho Tatsuno City, Hyogo 671-1681, Japan
Keiichi Hori
Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara, Kanagawa 252-5210, Japan
Toshiyuki Katsumi
Department of Mechanical Engineering, Nagaoka University of Technology, Japan
Yutaka Wada
Akita University, 1-1, Tegata, Gakuen-machi, Akita City, Akita, 010-8502, Japan
Makihito Nishioka
University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8577, Japan

RESUMO

Currently, the market of airbag inflators as automobile safety devices is still expanding and the key technology in airbag inflation depends on the performance of a gas generant inside the inflator. The gas generant has been developed for modifying inflator performance for airbag deployment in automobiles, usually such a target would be higher gas mol per weight of gas generant, lower gas temperature, and more filterable slug formation of residue inside the inflator. One representative composition of only fuel and oxidizer as the gas generant, which satisfies the target performance, was selected and studied in order to prevent the reaction mechanism from burning the inflator in the airbag system. For a basic study of recent typical gas generants, an initial reaction model with input data was constructed from many experimental data, including the burn rate, burn temperature, SEM image of residue, high-speed video camera image of gas generant burning, and high-pressure differential thermal analysis (DTA).

Referências

  1. Kobori, Y., Safety Device for Vehicle Passengers.

  2. Poole, D.R., Azide-Free Gas Generant Composition with Easily Filterable Combustion Products.

  3. Poole, D.R., Composition for Controlling Oxides of Nitrogen.

  4. Shaw, G.C., Solid Non-Azide Nitrogen Gas Generant Compositions.

  5. Yamato, Y. Hirata, N. Takahori, T. Yokoyama, T. Matsuda, N., Daicel Chemical Industries, LTD, JP H10-87390.

  6. Poole, D.R., Automotive System Lab, WO 95/00462.

  7. Lundstrom, N.H. Khandhadia, P.S., Automotive System Lab, WO 97/29927.

  8. Hinshaw, J.C., Metal Complexes for Use as Gas Generants.

  9. Hinshaw, J.C. Doll, D.D., Metal Complexes for Use as Gas Generants.

  10. Scheffee, R.S., Atlantic Research Corporation, WO 9746501.

  11. Burns, S.P. Khandhadia, P.S., Automotive System Lab, WO 9822208.


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