[특허]Energetic material initiation device utilizing exploding foil initiated ignition system with secondary explosive material

Reynolds Systems, Inc.

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특허 상세정보

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Energetic material initiation device utilizing exploding foil initiated ignition system with secondary explosive material

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F42C-011/00
미국특허분류(USC)	102/202.7; 102/204
출원번호	US-0316126 (2002-12-10)
§371/§102 date	20020124 (20020124)
발명자 / 주소	Hennings, George N. Teschke, Dieter K. Reynolds, Richard K.
출원인 / 주소	Reynolds Systems, Inc.
대리인 / 주소	Harness, Dickey &
인용정보	피인용 횟수 : 27 인용 특허 : 8

초록
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A device and method that employs a detonation event as an energy source for producing a pyrotechnic output. The device includes an initiation charge that is selectively detonated by an exploding foil initiator. Byproducts from the detonation event are attenuated by a barrier that is disposed between the initiation charge and an ignition charge. The barrier participates in a chemical reaction with the detonation byproducts to oxidize and burn. In this regard, the barrier serves as a fuel that is employed to ignite the ignition charge. The device includes ...

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1. An energetic material initiation device, comprising:an initiation charge; an exploding foil initiator for selectively detonating the initiation charge; an ignition charge; and a barrier structure disposed between the initiation charge and the ignition charge, the barrier combusting in response to energy released during detonation of the initiation charge and initiating combustion in the ignition charge; whereby combustion of the ignition charge produces a pyrotechnic output. 2. The device of claim 1, wherein the barrier structure includes a member that is formed from a resilient material.3. The device of claim 1, wherein the barrier structure includes a metallic member.4. The device of claim 3, wherein the metallic member is formed of titanium.5. The device of claim 3, wherein the barrier structure includes an oxidizer barrier that is in juxtaposed relation with a reactable member and the ignition charge.6. The device of claim 5, wherein the oxidizer barrier is formed of polytetrafluoroethylene.7. The device of claim 1, wherein the ignition charge consists essentially of boron potassium nitrate.8. The device of claim 1, further comprising a sleeve having a first end and a second end opposite the first end, the initiation charge being disposed in the first end of the sleeve and abutting the exploding foil initiator.9. The device of claim 8, wherein the second end of the sleeve abuts the barrier structure and the sleeve operatively spaces the barrier structure apart from the initiation charge so that a gap is formed therebetween.10. The device of claim 8, wherein the barrier structure is at least partially disposed in the sleeve.11. The device of claim 8, wherein the barrier structure includes a polytetrafluoroethylene powder that is disposed adjacent the initiation charge.12. The device of claim 8, wherein the ignition charge is disposed in the sleeve.13. The device of claim 12, wherein a compliant member is abutted against the second end of the sleeve such that the ignition charge is in juxtaposed relation with the barrier structure and the compliant member.14. The device of claim 12, further comprising a secondary barrier structure, the secondary barrier structure being disposed on a side of the ignition charge opposite the barrier structure.15. The device of claim 14, wherein the secondary barrier structure includes a reactable member.16. The device of claim 14, wherein the secondary barrier structure includes an oxidizer barrier.17. The device of claim 16, wherein the oxidizer barrier is formed of polytetrafluoroethylene.18. The device of claim 1, further comprising a housing into which the initiation charge, the exploding foil initiator, the ignition charge and the barrier structure are disposed.19. The device of claim 18, wherein the housing includes a cover that ruptures in at least one area in response to the heat and pressure generated during combustion of the ignition charge.20. The device of claim 19, wherein a stress riser is formed in the cover which causes the cover to rupture in a predetermined area.21. The device of claim 20, wherein the stress riser is formed from at least one of a groove and a perforation.22. The device of claim 18, wherein the housing further includes a base, the base having a ceramic, leadless chip carrier to which the exploding foil initiator is coupled, the base being sealingly coupled to the cover.23. A energetic material initiation device, comprising:a base; an initiation charge; an exploding foil initiator coupled to the base and operable for selectively producing a shockwave to initiate detonation of the initiation charge; a hollow sleeve housing the initiation charge; an ignition charge; a barrier structure disposed between the initiation charge and the ignition charge; and a cover coupled to the base, the cover cooperating with base to house the exploding foil initiator, the initiation charge, the hollow sleeve, the ignition charge and the barrier structure; wherein combustion in the ignition charge is initiated by a chemical reaction in which energy released during detonation of the initiation charge and an ensuing reaction with at least a portion of the barrier structure; and wherein the cover ruptures in response to the initiation of combustion in the ignition charge to thereby provide a pyrotechnic output. 24. The device of claim 23, wherein the cover and the base are sealingly coupled to one another.25. The device of claim 23, wherein the barrier structure includes a member that is formed from a resilient material.26. The device of claim 23, wherein the barrier structure includes a reactable member.27. The device of claim 23, wherein the barrier structure is at least partially formed of titanium.28. The device of claim 27, wherein the portion of the barrier structure that reacts includes a reactable member and the barrier structure further includes an oxidizer barrier that is in juxtaposed relation with the reactable member and the ignition charge.29. The device of claim 28, wherein the oxidizer barrier is formed of polytetrafluoroethylene.30. The device of claim 23, wherein the ignition charge consists essentially of boron potassium nitrate.31. The device of claim 23, further comprising a sleeve having a first end and a second end opposite the first end, the initiation charge being disposed in the first end of the sleeve and abutting the exploding foil initiator.32. The device of claim 31, wherein the second end of the sleeve abuts the barrier structure and the sleeve operatively spaces the barrier structure apart from the initiation charge so that a gap is formed therebetween.33. The device of claim 31, wherein the barrier structure is at least partially disposed in the sleeve.34. The device of claim 31, wherein the barrier structure includes a polytetrafluoroethylene powder that is disposed adjacent the initiation charge.35. The device of claim 33, wherein the ignition charge is disposed in the sleeve.36. The device of claim 35, wherein a compliant member is abutted against the second end of the sleeve such that the ignition charge is in juxtaposed relation with the barrier structure and the compliant member.37. The device of claim 35, further comprising a secondary barrier structure, the secondary barrier structure being disposed on a side of the ignition charge opposite the barrier structure.38. The device of claim 37, wherein the secondary barrier structure includes a reactable member.39. The device of claim 37, wherein the secondary barrier structure includes an oxidizer barrier.40. The device of claim 39, wherein the oxidizer barrier is formed of polytetrafluoroethylene.41. The device of claim 23, wherein a stress riser is formed in the cover which causes the cover to rupture in a predetermined area.42. The device of claim 41, wherein the stress riser includes a plurality of intersecting features, the features being selected from a group consisting of grooves and perforations.43. The device of claim 23, wherein the base is a ceramic, leadless chip carrier.44. An energetic material initiation device, comprising:a base including a ceramic, leadless chip carrier; an initiation charge; an exploding foil initiator coupled to the base and operable for selectively producing a shockwave to initiate detonation of the initiation charge; a hollow sleeve housing the initiation charge; an ignition charge; a barrier structure disposed between the initiation charge and the ignition charge, the barrier structure including a reactable member and an oxidizer barrier; and a cover coupled to the base, the cover cooperating with base to house the exploding foil initiator, the initiation charge, the hollow sleeve, the ignition charge and the barrier structure, the cover being formed with at least one stress riser, the at least one stress riser including a plurality of intersecting features, the features being selected from a group consisting of grooves and perforations; wherein the initiation charge, the barrier structure and the initiation charge cooperate to convert the shockwave into a pyrotechnic output that ruptures the cover in an area determined by the at least one stress riser.

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Energetic material initiation device utilizing exploding foil initiated ignition system with secondary explosive material

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Energetic material initiation device utilizing exploding foil initiated ignition system with secondary explosive material

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