IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0297881
(2003-04-14)
|
우선권정보 |
DE-0028169 (2000-06-09) |
국제출원번호 |
PCT/DE01/02135
(2001-06-08)
|
국제공개번호 |
WO01/94161
(2001-12-13)
|
발명자
/ 주소 |
|
대리인 / 주소 |
Shaffer & Culbertson, L.L.P.
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
The invention relates to a hybrid gas generator, in particular for filling a gas bag, comprising a combustion chamber (3) which contains a predetermined amount of a gas generating material (11) and which comprises an outlet opening of the combustion chamber, further comprising an activating device (
The invention relates to a hybrid gas generator, in particular for filling a gas bag, comprising a combustion chamber (3) which contains a predetermined amount of a gas generating material (11) and which comprises an outlet opening of the combustion chamber, further comprising an activating device (9) for activating the gas generating material (11) and further comprising a gas vessel (5) containing a stored gas, which is connected with the combustion chamber (3) via the outlet opening of the combustion chamber, which is sealed off in the initial state, and which comprises at least one outlet opening (25) for the gas mixture which is sealed off by means of an outlet membrane (23) in the initial state. The gas that is generated in the combustion chamber (3) after the gas generating material (11) has been activated acts upon a projectile (29) via the outlet opening of the combustion chamber, which projectile is accelerated by the gas pressure and destroys the outlet membrane (23), whereby the gas mixture consisting of the gas generated and the stored gas escapes from the outlet opening (25).
대표청구항
▼
The invention relates to a hybrid gas generator, in particular for filling a gas bag, comprising a combustion chamber (3) which contains a predetermined amount of a gas generating material (11) and which comprises an outlet opening of the combustion chamber, further comprising an activating device (
The invention relates to a hybrid gas generator, in particular for filling a gas bag, comprising a combustion chamber (3) which contains a predetermined amount of a gas generating material (11) and which comprises an outlet opening of the combustion chamber, further comprising an activating device (9) for activating the gas generating material (11) and further comprising a gas vessel (5) containing a stored gas, which is connected with the combustion chamber (3) via the outlet opening of the combustion chamber, which is sealed off in the initial state, and which comprises at least one outlet opening (25) for the gas mixture which is sealed off by means of an outlet membrane (23) in the initial state. The gas that is generated in the combustion chamber (3) after the gas generating material (11) has been activated acts upon a projectile (29) via the outlet opening of the combustion chamber, which projectile is accelerated by the gas pressure and destroys the outlet membrane (23), whereby the gas mixture consisting of the gas generated and the stored gas escapes from the outlet opening (25). medium forming a volatile substance; an adsorption filter having a fresh air inlet and being connected to said tank for receiving the volatile substance which emanates from the tank; a shutoff valve mounted at said fresh air inlet of said adsorption filter and being electrically drivable between an open position and a closed position whereat said tank system is closed off pressure tight with respect to the ambient; a tank fill-level sensor for detecting the fill level of said fluid medium in said tank and for transmitting a signal indicative of said fill level of said fluid medium; a fill pipe connected to said tank for filling said tank with said fluid medium; a control apparatus for receiving said signal indicative of said fill level when said tank is filled during a tanking operation; and, said control apparatus being connected to said shutoff valve for electrically driving said shutoff valve into said closed position when said fill level has reached a maximum fill level. 8. The tank system of claim 7, wherein said tank system further comprises a tank cap which can be in an open state or a closed state; a tank-cap switch for sensing the open state of said tank cap; and, said control apparatus functioning to detect said open state of said tank cap from said tank-cap switch and to electrically drive said shutoff valve in dependence upon the detected open state of said tank cap.9. A tank system including a tank system of a motor vehicle, the tank system comprising: a tank for receiving a fluid medium forming a volatile substance; an adsorption filter connected to said tank for receiving the volatile substance which emanates from the tank; a shutoff valve operatively connected to said adsorption filter and being electrically drivable between an open position and a closed position whereat said tank system is closed off pressure tight with respect to the ambient; a tank fill-level sensor for detecting the fill level of said fluid medium in said tank and for transmitting a signal indicative of said fill level of said fluid medium; a fill pipe connected to said tank for filling said tank with said fluid medium; a control apparatus for receiving said signal indicative of said fill level when said tank is filled during a tanking operation; said control apparatus being connected to said shutoff valve for electrically driving said shutoff valve into said closed position when said fill level has reached a maximum fill level; said tank system further comprises a tank cap which can be in an oven state or a closed state; a tank-cap switch for sensing the oven state of said tank cap; and, said control apparatus functioning to detect said oven state of said tank cap from said tank-cap switch and to electrically drive said shutoff valve in dependence upon the detected oven state of said tank cap; and, said adsorption filter having a fresh air inlet and said shutoff valve being mounted at said fresh air inlet. 10. A control apparatus for operating a tank system including a tank system of a motor vehicle, the tank system including a tank for receiving a fluid medium forming a volatile substance; an adsorption filter having a fresh air inlet and being connected to said tank for receiving the volatile substance which emanates from said tank; a shutoff valve mounted at said fresh air inlet of said adsorption filter and being electrically drivable between an open position and a closed position whereat said tank system is closed off pressure tight with respect to the ambient; a tank fill-level sensor for detecting the fill level of said fluid medium in said tank and for transmitting a signal indicative of said fill level of said fluid medium; and, a fill pipe connected to said tank for tilling said tank with said fluid medium; the control apparatus comprising: means for determining said fill level when tanking said tank from said signal indicative of said fill level; and, means for driving said shut off valve into said closed position when said fill level has reached a maximum fill level. 11. The control apparatus of claim 10, further comprising means for driving said shutoff valve into said closed position by applying a clocked driving signal thereto.12. The control apparatus of claim 11, wherein said tank system further comprises a tank cap which can be in an open state or a closed state; and, a tank-cap switch for sensing the open state or closed state of said tank cap; and, wherein the control apparatus further comprises: means for detecting the start of a tanking operation based on said open state of said tank cap sensed by said tank-cap switch; and, means for detecting the end of said tanking operation when said tank cap is in said open state as a consequence of the level of said fluid medium exceeding a maximum tank fluid level. 13. The control apparatus of claim 12, further comprising: means for driving said shutoff valve to open when said tank cap is sensed as being closed by said tank-cap switch; means for continuing to drive said shutoff valve to open when said tank cap is sensed as being open by said tank-cap switch; means for driving said shutoff valve to close when the maximum tank fill level is exceeded; and, means for switching off the flow of fuel into said tank when the fluid medium reaches a pistol-like fill nozzle introduced into said fill pipe. 14. The control apparatus of claim 13, wherein said tank system includes a tank leakage diagnostic unit; and, wherein said control apparatus further comprises means for driving said shutoff valve to close at the start of a tank leakage diagnosis when said tank cap is sensed as being in said closed state.15. The control apparatus of claim 10, further comprising means for driving said shutoff valve to close when a roll-over condition of said motor vehicle is sensed.
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