IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0992905
(2004-11-19)
|
등록번호 |
US-7363863
(2008-04-29)
|
우선권정보 |
DE-203 18 283 U(2003-11-26) |
발명자
/ 주소 |
- Engler,Henri
- Englbrecht,Karl
- Zauhar,Andreas
- Kapfelsperger,Thomas
- Schachtner,Andreas
|
출원인 / 주소 |
|
대리인 / 주소 |
Tarolli, Sundheim, Covell & Tummino LLP
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
8 |
초록
▼
A gas generator has a combustion chamber containing a pyrotechnic propellant charge and a biasing unit biasing the propellant charge. A holding device is provided, which holds the biasing unit in a predetermined, fixed, compressed position and which is designed to be releasable, so as to selectively
A gas generator has a combustion chamber containing a pyrotechnic propellant charge and a biasing unit biasing the propellant charge. A holding device is provided, which holds the biasing unit in a predetermined, fixed, compressed position and which is designed to be releasable, so as to selectively release the biasing unit, so that it arrives at a release position in which it exerts a biasing force on the propellant charge.
대표청구항
▼
The invention claimed is: 1. A gas generator comprising: a combustion chamber (25) containing a pyrotechnic propellant charge (26) and a biasing unit (50) permanently arranged in the combustion chamber (25) biasing said propellant charge (26) and comprising a holding device, the holding device hold
The invention claimed is: 1. A gas generator comprising: a combustion chamber (25) containing a pyrotechnic propellant charge (26) and a biasing unit (50) permanently arranged in the combustion chamber (25) biasing said propellant charge (26) and comprising a holding device, the holding device holding said biasing unit (50) in a predetermined, fixed, compressed position, and selectively releasing said biasing unit (50) in a release position in which the biasing unit (50) exerts a biasing force on said propellant charge (26). 2. The gas generator as recited in claim 1, wherein said holding device has a mechanical locking means. 3. The gas generator as recited in claim 1, wherein said biasing unit (50) constitutes a self-contained unit, which holds itself in said compressed position. 4. The gas generator as recited in claim 1, wherein said biasing unit (50) is a preassembled unit. 5. The gas generator as recited in claim 1, wherein said holding device has a front wall (52) and extensions (58, 60) that protrude from said front wall (52). 6. The gas generator as recited in claim 5, wherein said extensions (58) engage a rear wall (54) of the biasing unit (50). 7. The gas generator as recited in claim 1, wherein said holding device includes a turning lock, in particular a bayonet lock, and attains said release position by turning said lock. 8. The gas generator as recited in claim 1, wherein said biasing unit (50) is situated at an axial end (28) of said combustion chamber (25). 9. The gas generator as recited in claim 1, wherein said biasing unit (50) is inserted into said combustion chamber (25) via an axial end (29) and laterally contacts a combustion chamber wall (24). 10. The gas generator as recited in claim 1, wherein said biasing unit (50) is accommodated in said combustion chamber (25) as a unit in unsecured fashion facing said propellant charge (26). 11. The gas generator as recited in claim 1, wherein it is an elongated hybrid gas generator. 12. The gas generator as recited in claim 11, wherein said combustion chamber (25) is surrounded by a gas-filled pressure chamber. 13. The gas generator as recited in claim 1, wherein said gas generator has a filling end for said propellant charge (26), said filling end being closed by a cover (15), and a quantity of said propellant charge (26) placed in said combustion chamber (25) and a volume differential of said combustion chamber between said compressed position and said release position of said biasing unit (50) is so large that, when said filling end is pointing upwards and said biasing unit (50) is in said compressed position, said cover (15) in its closed position is spaced away from said propellant charge (26), whereas in said release position said propellant charge (26) presses against said cover (15). 14. A gas generator comprising: a combustion chamber (25) containing a pyrotechnic propellant charge (26), and a biasing unit (50) for biasing said propellant charge (26), said biasing unit comprising a holding device for holding said biasing unit (50) in a predetermined, fixed, compressed position, and selectively releasing said biasing unit (50) to a release position in which the biasing unit (50) exerts a biasing force on said propellant charge (26), said biasing unit having a front wall (52) facing said propellant charge (26), a rear wall (54) facing away from said propellant charge (26), and an elastic spring element (56) situated between said front wall (52) and said rear wall (54). 15. The gas generator as recited in claim 14, wherein said front wall and said rear wall (52, 54) are alternatively joined to each other by said holding device firmly and at a constant distance in said compressed position, or are uncoupled from each other in said release position. 16. A gas generator comprising: a combustion chamber (25) containing a pyrotechnic propellant charge (26), and a self-contained biasing unit (50) permanently arranged in the combustion chamber (25), said biasing unit comprising a holding device for holding said biasing unit (50) in a predetermined, fixed, compressed position, and selectively releasing said biasing unit (50) to a release position in which the biasing unit (50) exerts a biasing force on said propellant charge (26). 17. The gas generator as recited in claim 16, wherein said biasing unit comprises a front wall (52) facing said propellant charge (26), a rear wall (54) facing away from said propellant charge (26), and an elastic spring element (56) situated between said front wall (52) and said rear wall (54). 18. The gas generator as recited in claim 17, wherein said front wall (52) and said rear wall (54) are joined to each other by said holding device firmly and at a constant distance in said compressed position, and are uncoupled from each other in said release position. 19. The gas generator as recited in claim 17, wherein said holding device comprises extensions (58, 60) that protrude from said front wall (52). 20. The gas generator as recited in claim 19, wherein said extensions (58) engage said a rear wall (54) of the biasing unit (50).
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