IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0755152
(2007-05-30)
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등록번호 |
US-7576660
(2009-08-31)
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발명자
/ 주소 |
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출원인 / 주소 |
- Ford Global Technologies, LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
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The invention relates to a fuel retention monitoring system for a pressurized hydrogen storage tank on a vehicle. The vehicle includes a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas. The conduits have at least one connection linking them together. The monitor
The invention relates to a fuel retention monitoring system for a pressurized hydrogen storage tank on a vehicle. The vehicle includes a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas. The conduits have at least one connection linking them together. The monitoring system includes a vapor concentrator for the hydrogen gas, shrouding a first one of the connections. The first connection has a parting line where the conduits forming the connection meet. The vapor concentrator may be positioned above the parting line of the first connection and may include a periphery and a top defining a headspace cavity. The monitoring system further includes a hydrogen gas sensor locatable adjacent to the headspace cavity and capable of providing a signal correlated to a hydrogen gas concentration in the headspace cavity.
대표청구항
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What is claimed: 1. A fuel retention monitoring system for a pressurized hydrogen storage tank on a vehicle, the vehicle including a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas, the conduits having at least a first connection therebetween, the monitoring sy
What is claimed: 1. A fuel retention monitoring system for a pressurized hydrogen storage tank on a vehicle, the vehicle including a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas, the conduits having at least a first connection therebetween, the monitoring system comprising: a vapor concentrator for a gas, shrouding the first connection for the hydrogen dispensing system positionable adjacent to the hydrogen storage tank, the vapor concentrator being positioned above a parting line of the first connection and having a periphery and a top defining a headspace cavity; and a hydrogen gas sensor locatable adjacent to the headspace cavity and capable of providing a signal correlated to a hydrogen gas concentration in the headspace cavity. 2. The fuel retention monitoring system of claim 1, wherein the vapor concentrator includes a shroud encapsulating the hydrogen dispensing system. 3. The fuel retention monitoring system of claim 1, wherein the vapor concentrator includes an open base. 4. The fuel retention monitoring system of claim 1, wherein the vapor concentrator includes an aperture. 5. The fuel retention monitoring system of claim 1, wherein the vapor concentrator includes one or more connection shrouds connected to a manifold shroud. 6. The fuel retention monitoring system of claim 1, wherein the signal provides input to a vehicle control system having a first threshold value. 7. The fuel retention monitoring system of claim 6, wherein the first threshold value is selectable. 8. The fuel retention monitoring system of claim 6, wherein exceeding the first threshold value activates an indicator signal. 9. The fuel retention monitoring system of claim 6, wherein the signal provides input to the vehicle control system having a second threshold value greater than the first threshold value and a third threshold value greater than the second threshold value. 10. The fuel retention monitoring system of claim 9, wherein the second threshold value is selectable. 11. The fuel retention monitoring system of claim 10, wherein exceeding the second threshold value activates a passive ventilation system. 12. The fuel retention monitoring system of claim 9, wherein the third threshold value is selectable. 13. The fuel retention monitoring system of claim 9, further comprising a hydrogen gas management system configured to isolate the hydrogen storage tank when the third threshold value is exceeded. 14. A fuel retention monitoring system for a pressurized hydrogen storage tank on a vehicle, the vehicle including a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas, the conduits having at least a first connection therebetween, the monitoring system comprising: a vapor concentrator having a shaped thin-shell portion, the thin-shell portion having a base and a vertex, the vertex being located above the base and having an aperture adjacent to the vertex, the base being located above and adjacent to a parting line of the first connection of the dispensing system; and a hydrogen gas sensor locatable adjacent to the aperture and capable of providing a signal to a vehicle control system. 15. The fuel retention monitoring system of claim 14, wherein the first connection includes an active fitting. 16. The fuel retention monitoring system of claim 14, wherein the base includes a periphery defining an opening. 17. A method for monitoring fuel retention for a pressurized hydrogen storage tank on a vehicle, the vehicle including a hydrogen dispensing system having a plurality of conduits for carrying a hydrogen gas, the conduits having at least a first connection therebetween, the method comprising: generating a first electronic signal from a hydrogen sensor locatable adjacent to a vapor concentrator shrouding the first connection of the hydrogen dispensing system; assessing whether the first signal exceeds a first threshold value; assessing whether the first signal exceeds a second threshold value greater than the first threshold value; assessing whether the first signal exceeds a third threshold value greater than the second threshold value; generating a second electronic signal correlated to a maximum threshold value exceeded; and transmitting the second signal to an electronic logic circuit, wherein the logic circuit controls a portion of a vehicle. 18. The method of claim 17, wherein the logic circuit assesses whether the second threshold value has been exceeded after the first threshold value has been exceeded, and assesses whether fueling is in progress, wherein if fueling is not in progress, the circuit activates an indicator signal until the first electronic signal returns below the first threshold value, if fueling is in progress, the circuit stops the fueling process until the first electronic signal returns below the first threshold. 19. The method of claim 17, wherein the logic circuit assesses whether the first electronic signal exceeds a third threshold value after it has exceeded a second threshold value, if the first electronic signal has not exceeded the third threshold value, the control system activates a passive ventilation system until the first electronic signal returns below the first threshold level, if the signal does exceed the third threshold value the control system isolates the pressurized fuel storage tank. 20. The method of claim 19, wherein the first threshold value is selectable, the second threshold value is selectable, and the third threshold value is selectable.
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