IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0154994
(2008-05-29)
|
등록번호 |
US-7665762
(2010-04-09)
|
우선권정보 |
DE-20 2007 007 597 U(2007-05-30); DE-10 2008 018 766(2008-04-14) |
발명자
/ 주소 |
- Gabler, Michael
- Englbrecht, Karl
- Kraus, Daniel
- Labitzke, Stefan
- Nobach, Thomas
- Pritz, Helmut
- Seidl, Johann
|
출원인 / 주소 |
|
대리인 / 주소 |
Tarolli, Sundheim, Covell & Tummino LLP
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
▼
A gas generator for a vehicle occupant restraint system a rigid outer housing (12), a chamber (14) formed in the outer housing (12), in which a compressed gas is present at least upon activation of the gas generator (10), a component immovable (20; 34; 62) relative to the outer housing (12), at leas
A gas generator for a vehicle occupant restraint system a rigid outer housing (12), a chamber (14) formed in the outer housing (12), in which a compressed gas is present at least upon activation of the gas generator (10), a component immovable (20; 34; 62) relative to the outer housing (12), at least one outflow opening (22) formed in the immovable component (20; 34; 62), and a least one resilient element (26), which is clamped inside the outer housing (12) and rests against the immovable component (20; 34; 62) at least in its normal position. In its normal position, the resilient element (26) closes a flow path between the chamber (14) and external surroundings of the gas generator (10) and is deformed elastically under the influence of compressed gas, whereby it clears a flow cross-section (30) whose size is increasing with increasing pressure.
대표청구항
▼
The invention claimed is: 1. A gas generator for a vehicle occupant restraint system: a rigid outer housing (12), a chamber (14) within said outer housing (12), in which a compressed gas is present at least upon activation of said gas generator (10), a component (20; 34; 62) immovable relative to s
The invention claimed is: 1. A gas generator for a vehicle occupant restraint system: a rigid outer housing (12), a chamber (14) within said outer housing (12), in which a compressed gas is present at least upon activation of said gas generator (10), a component (20; 34; 62) immovable relative to said outer housing (12), at least one outflow opening (22) formed in said immovable component (20; 34; 62) and at least one resilient element (26), which is clamped inside said outer housing (12) and rests against said immovable component (20; 34; 62) at least in its normal position, wherein said resilient element (26) in its normal position closes a flow path between said chamber (14) and external surroundings of said gas generator (10) and under the influence of compressed gas is deformed elastically, whereby it clears a flow cross-section (30) whose size is increasing with increasing pressure. 2. The gas generator according to claim 1, wherein said immovable component is a closing element (20) of said chamber (14), in which said outflow opening (22) is arranged. 3. The gas generator according to claim 2, wherein at least in its normal position said resilient element (26) rests against said closing element (20) so as to radially surround said outflow opening (22) on the outside. 4. The gas generator according to claim 2, wherein a membrane (24) is attached to said closing element (20), which closes said outflow opening (22) prior to activation of said gas generator (10). 5. The gas generator according to claim 2, wherein at least one exit opening (18) is provided in said outer housing (12) in the vicinity of said closing element (20). 6. The gas generator according to claim 1, wherein at least in its normal position said resilient element (26) directly rests on said outer housing (12) in addition to resting against said immovable component (20; 34; 62). 7. The gas generator according to claim 1, wherein at least in its normal position said element (26) rests on a stop (32) which is immovable relative to said outer housing (12) in addition to resting against said immovable component (20; 34; 62). 8. The gas generator according to claim 1, wherein said chamber (14) has an opening (36), said immovable component being a cap (34) arranged inside said chamber (14), said cap (34) being adjacent to said opening (36) of said chamber (14) and having a diameter that is greater than the diameter of said opening (36). 9. The gas generator according to claim 8, wherein said immovable component includes a plurality of outflow openings (22) arranged on its periphery, which in its normal position are closed by said resilient element (26). 10. The gas generator according to claim 8, wherein said resilient element (26) rests against the periphery of said immovable component. 11. The gas generator according to claim 1, wherein said immovable component is a component of said diffuser (62) arranged outside said chamber (14). 12. The gas generator according to claim 1, wherein said resilient element (26) is arranged downstream of said outflow opening (22). 13. The gas generator according to claim 1, wherein said resilient element (26) is arranged upstream of said outflow opening (22). 14. The gas generator according to claim 1, wherein said resilient element (26) is a disc spring. 15. The gas generator according to claim 14, wherein a plurality of disc springs are provided. 16. The gas generator according to claim 15, wherein a plurality of disc springs are provided, which are arranged one above the other and complement each other to form a bellows-like structure. 17. The gas generator according to claim 1, wherein said resilient element (26) has the shape of a spherical shell portion. 18. The gas generator according to claim 1, wherein said resilient element (26) has the shape of spherical cap. 19. The gas generator according to claim 1, wherein it is a hybrid gas generator. 20. The gas generator according to claim 19, wherein said chamber (14) is a cold gas container.
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