[특허]Inflator for vehicle protection apparatus

Delphi Technologies, Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Inflator for vehicle protection apparatus

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65B-001/04
미국특허분류(USC)	141/010; 141/047; 141/054; 141/100; 141/114; 280/741
출원번호	US-0237488 (2005-09-27)
발명자 / 주소	Fink,Michael
출원인 / 주소	Delphi Technologies, Inc.
인용정보	피인용 횟수 : 1 인용 특허 : 19

초록
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A pressurized container includes a vessel defining a chamber therein. A housing that is connected to the vessel defines an outlet that is fluidly separated from the chamber by a closure member. A moveable member may be seated within and form a seal with the housing and abut the closure member. Activation of an initiator propels the moveable member through the closure member, thereby fluidly connecting the chamber and the outlet. Also, the chamber might include a first portion and a second portion, wherein an isolator member substantially fluidly separates the first portion and the second portion. Gas released from the first portion initially inflates an air bag associated with the pressurized container and gas released from the second portion maintains the inflation of the air bag for a time.

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The invention claimed is: 1. A method of inflating an air bag using an air bag inflator, the method comprising: providing a first volume of gas comprising mainly helium; providing a second volume of gas comprising at least helium and a second gas different from helium; inflating an air bag associated with the first volume of gas to its substantially full volume with at least a portion of the gas from the first volume of gas; substantially maintaining the substantially full volume inflation of the air bag for a time with at least a portion of the gas from the second volume of gas also associated with the air bag. 2. The method of claim 1, wherein the air bag inflator is a cold gas inflator. 3. The method of claim 1, wherein the first and second volumes are in fluid communication prior to inflating the air bag. 4. The method of claim 1, wherein the second volume of gas also comprises mainly helium. 5. The method of claim 1, wherein the first volume of gas is expelled from the inflator at a first rate to inflate the air bag, the helium within the second volume of gas is expelled from the inflator at a second rate slower than the first rate, and the second gas within the second volume of gas is expelled from the inflator at a third rate slower than the second rate. 6. The method of claim 1, wherein the first volume of gas and the second volume of gas are expelled from the inflator into the airbag through the same outlet. 7. The method of claim 1, wherein the second gas is argon. 8. The method of claim 1, wherein the first volume of gas and the second volume of gas are within a common vessel in the inflator and separated by an isolator. 9. The method of claim 1, further comprising releasing the gases within both the first and second volumes with only a single initiator. 10. The method of claim 1, wherein the first volume of gas and the second volume of gas each comprise substantially the same gas mixture. 11. A method of inflating an air bag using a cold gas inflator, the method comprising: providing a cold gas inflator having a first volume containing at least one pressurized gas, and a second volume containing a gas mixture having at least a first pressurized gas and a second pressurized gas different from the first pressurized gas; inflating an air bag associated with the cold gas inflator to its substantially full volume with unheated gas stored within the first volume; substantially maintaining the substantially full volume inflation of the air bag for a time with the first and second different pressurized unheated gases stored within the second volume. 12. The method of claim 11, wherein the airbag is initially inflated by releasing the gas contained within the first volume from the cold gas inflator at a first flow rate, and the volume inflation is substantially maintained by releasing the first pressurized gas contained within the second volume from the cold gas inflator at a second flow rate different from the first flow rate, and by releasing the second pressurized gas contained within the second volume from the cold gas inflator at a third flow rate different from the first and second flow rates. 13. The method of claim 11, wherein the first gas of the second volume has a molecule size smaller than the second gas of the second volume. 14. The method of claim 13, wherein the first gas of the second volume is helium and the second gas of the second volume is argon. 15. The method of claim 11, wherein the at least one pressurized gas stored within the first volume is mainly helium. 16. The method of claim 11, wherein the first volume of gas and the second volume of gas are expelled from the inflator into the airbag through the same outlet. 17. The method of claim 11, wherein the first and second volumes are in fluid communication prior to inflating the air bag. 18. The method of claim 11, wherein the first volume of gas further comprises argon. 19. The method of claim 11, wherein the first volume of gas and the second volume of gas are within a common vessel in the cold gas inflator and separated by an isolator. 20. The method of claim 11, further comprising releasing the gases within both the first and second volumes with only a single initiator. 21. The method of claim 11, wherein the first volume of gas and the second volume of gas each comprise substantially the same gas mixture. 22. A method of inflating an air bag using a cold gas inflator, the method comprising: inflating an air bag to substantially its full volume from a first gas mixture comprising mainly helium stored in a first volume of a cold gas inflator; and substantially maintaining the full volume inflation of the air bag for a time from a second gas mixture stored within a second volume, the second gas mixture comprising helium and argon. 23. The method of claim 22, wherein the airbag is initially inflated by releasing the gas contained within the first volume from the cold gas inflator at a first flow rate, and the volume inflation is substantially maintained by releasing the first pressurized gas contained within the second volume from the cold gas inflator at a second flow rate different from the first flow rate, and by releasing the second pressurized gas contained within the second volume from the cold gas inflator at a third flow rate different from the first and second flow rates. 24. The method of claim 22, wherein the first volume of gas and the second volume of gas are expelled from the inflator into the airbag through the same outlet. 25. The method of claim 22, wherein the first and second volumes are in fluid communication prior to inflating the air bag. 26. The method of claim 22, wherein the full inflation of the air bag is maintained by the gas stored within the second volume by passing it through the first volume for a time longer than the air bag would have been maintained from the gas stored only within the first volume. 27. The method of claim 22, further comprising releasing the gases within both the first and second volumes with only a single initiator. 28. The method of claim 22, wherein the first volume of gas and the second volume of gas are within a common vessel in the cold gas inflator and separated by an isolator. 29. The method of claim 22, wherein the first volume of gas and the second volume of gas each comprise substantially the same gas mixture. 30. A method of inflating an air bag using an air bag inflator, the method comprising: providing a first volume of gas comprising mainly helium; providing a second volume of gas comprising at least a gas that is different from helium; inflating an air bag associated with the first volume of gas to its substantially full volume with at least a portion of the gas from the first volume of gas; substantially maintaining the substantially full volume inflation of the air bag for a time with at least a portion of the gas from the second volume of gas also associated with the air bag. 31. The method of claim 30, wherein the air bag inflator is a cold gas inflator. 32. The method of claim 30, wherein the first and second volumes are in fluid communication prior to inflating the air bag. 33. The method of claim 30, wherein the second volume of gas further comprises helium and the second volume of gas is mainly helium. 34. The method of claim 33, wherein the helium within the first volume of gas is expelled from the inflator at a first rate to inflate the air bag, the helium within the second volume of gas is expelled from the inflator at a second rate slower than the first rate, and the gas different from helium within the second volume of gas is expelled from the inflator at a third rate slower than the first rate. 35. The method of claim 30, wherein the gas within the first volume of gas is expelled from the inflator at a first rate to inflate the air bag and the gas within the second volume of gas is expelled from the inflator at a second rate slower than the first rate. 36. The method of claim 30, wherein the first volume of gas and the second volume of gas are expelled from the inflator into the airbag through the same outlet. 37. The method of claim 30, wherein the gas that is different from helium has a molecule size larger than helium. 38. The method of claim 37, wherein the gas that is different from helium in the second volume comprises mainly argon. 39. The method of claim 30, wherein the first volume of gas and the second volume of gas are within a common vessel in the inflator and separated by an isolator. 40. The method of claim 30, wherein the first volume of gas and the second volume of gas each comprise substantially the same gas mixture.

이 특허에 인용된 특허 (19)

이 특허를 인용한 특허 피인용횟수: 1

Chauvin, Aurélie; Le Gall, Dominique. Obturating element, gas generator provided with the latter and method for manufacturing same. USP2016119493138.

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Inflator for vehicle protection apparatus

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