IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0972325
(2008-01-10)
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등록번호 |
US-8962203
(2015-02-24)
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발명자
/ 주소 |
- Kirklin, Matthew C.
- Lerner, Seth E.
- Trelly, David G.
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출원인 / 주소 |
- GM Global Technology Operations LLC
|
대리인 / 주소 |
Fraser Clemens Martin & Miller LLC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
1 |
초록
▼
A fuel cell system is disclosed that employs a thermal sensor for measuring an amount of heat generated in the fuel cell system, wherein a sensor signal from the thermal sensor is used to adjust operation of the fuel cell system when the fuel cell system is operating outside of desired thermal opera
A fuel cell system is disclosed that employs a thermal sensor for measuring an amount of heat generated in the fuel cell system, wherein a sensor signal from the thermal sensor is used to adjust operation of the fuel cell system when the fuel cell system is operating outside of desired thermal operating conditions.
대표청구항
▼
1. A fuel cell system comprising: a fuel cell stack including a cathode inlet, a cathode outlet, an anode inlet, and an anode outlet, wherein a first fluid is caused to flow through the cathode inlet and the cathode outlet and a second fluid is caused to flow through the anode inlet and the anode ou
1. A fuel cell system comprising: a fuel cell stack including a cathode inlet, a cathode outlet, an anode inlet, and an anode outlet, wherein a first fluid is caused to flow through the cathode inlet and the cathode outlet and a second fluid is caused to flow through the anode inlet and the anode outlet;a compressor in fluid communication with said fuel cell stack;a heat exchanger having an inlet and an outlet, the inlet in fluid communication with an outlet of the compressor;a humidifier adapted to humidify the first fluid having a first inlet in fluid communication with the outlet of said heat exchanger, an outlet in fluid communication with the cathode inlet of said fuel cell stack, and a second inlet in communication with a conduit including the cathode outlet and the anode outlet of said fuel cell stack for transferring moisture to the first fluid from the cathode outlet and the anode outlet, wherein said humidifier is a water vapor transfer unit including a dry side and a wet side separated by a water vapor permeable membrane, the water vapor permeable membrane simultaneously contacting the dry side and the wet side and configured to pass water vapor therethrough from the wet side to the dry side, the dry side in fluid communication with the first inlet and the outlet and the wet side in fluid communication with the second inlet;a first thermal sensor in communication with said compressor, said first thermal sensor adapted to generate a sensor signal indicative of a temperature of said compressor;a second thermal sensor in communication with the cathode inlet of said fuel cell stack, said second thermal sensor adapted to generate a sensor signal; anda control system adapted to receive the sensor signal from said first thermal sensor and said second thermal sensor to cause a change in operation of said compressor to minimize an amount of heat generated by said compressor, wherein said control system is configured to adjust operation of one of said heat exchanger and said humidifier to minimize heat introduced to the fuel cell system;wherein the fuel cell system is configured to operate at a minimized power output and a reduced speed of said compressor when a coolant flowing through the fuel cell system leaks or a coolant recirculation pump ceases operation. 2. The fuel cell system of claim 1, wherein said compressor includes a compressor motor power inverter in communication with said first thermal sensor. 3. The fuel cell system of claim 1, wherein the sensor signal of said second thermal sensor is indicative of a temperature of the first fluid at the cathode inlet. 4. The fuel cell system of claim 3, wherein said control system is adapted to receive the sensor signal from said second thermal sensor to cause a change in the operation of said compressor to minimize the amount of heat generated by said humidifier. 5. The fuel cell system of claim 1, wherein said fuel cell stack includes an anode purge outlet. 6. The fuel cell system of claim 5, further comprising an exhaust system in fluid communication with the anode purge outlet of said fuel cell stack. 7. The fuel cell system of claim 1, wherein the control system is adapted to adjust said compressor when a temperature of the first thermal sensor is outside a desired range. 8. The fuel cell system of claim 1, wherein said control system is adapted to calculate a maximum allowable compressor power based on the sensor signal from said first thermal sensor. 9. The fuel cell system of claim 1, wherein the change in operation of the compressor is proportional to a temperature of the first thermal sensor. 10. The fuel cell system of claim 1, wherein the fuel cell system is configured to operate at a minimized power output and a reduced speed of said compressor until a temperature of the fuel cell system is within a desired range. 11. The fuel cell system of claim 1, wherein said heat exchanger is a low-temperature core. 12. A fuel cell system comprising: a fuel cell stack including a cathode inlet, a cathode outlet, an anode inlet, and an anode outlet, wherein a first fluid is caused to flow through the cathode inlet and the cathode outlet and a second fluid is caused to flow through the anode inlet and the anode outlet;a compressor including a compressor power inverter, said compressor in fluid communication with said fuel cell stack;a heat exchanger having an inlet and an outlet, the inlet in fluid communication with an outlet of the compressor;a humidifier adapted to humidify the first fluid having a first inlet in fluid communication with the outlet of said heat exchanger, an outlet in fluid communication with the cathode inlet of said fuel cell stack, and a second inlet in communication with a conduit including the cathode outlet and the anode outlet of said fuel cell stack for transferring moisture to the first fluid from the cathode outlet and the anode outlet;a first thermal sensor in communication with said compressor, said first thermal sensor adapted to generate a sensor signal indicative of a temperature of one of said compressor and the compressor power inverter;a second thermal sensor in communication with the cathode inlet of said fuel cell stack, said second thermal sensor adapted to generate a sensor signal indicative of a temperature of the first fluid at the cathode inlet; anda control system adapted to receive the sensor signal from said first thermal sensor and said second thermal sensor to cause a change in operation of at least one of said compressor and said compressor power inverter to minimize an amount of heat generated thereby, wherein said control system is configured to adjust operation of one of said heat exchanger and said humidifier to minimize heat introduced to the fuel cell system;wherein the fuel cell system is configured to operate at a minimized power output and a reduced speed of said compressor when a coolant flowing through the fuel cell system leaks or a coolant recirculation pump ceases operation. 13. The fuel cell system of claim 12, wherein said control system is adapted to respond to the sensor signal from said second thermal sensor to cause a change in the operation of said compressor to minimize the heat generated by said humidifier. 14. The fuel cell system of claim 12, wherein said fuel cell stack includes an anode purge outlet. 15. The fuel cell system of claim 14, further comprising an exhaust system in fluid communication with the anode purge outlet of said fuel cell stack. 16. A fuel cell system comprising: a fuel cell stack including a cathode inlet, a cathode outlet, an anode inlet, and an anode outlet, wherein a first fluid is caused to flow through the cathode inlet and the cathode outlet and a second fluid is caused to flow through the anode inlet and the anode outlet;a compressor including a compressor power inverter, said compressor in fluid communication with said fuel cell stack;a heat exchanger having an inlet and an outlet, the inlet in fluid communication with an outlet of the compressor;a humidifier adapted to humidify the first fluid having a first inlet in fluid communication with the outlet of said heat exchanger, an outlet in fluid communication with the cathode inlet of said fuel cell stack, and a second inlet in communication with a conduit including the cathode outlet and the anode outlet of said fuel cell stack for transferring moisture to the first fluid from the cathode outlet and the anode outlet;a first thermal sensor in communication with said compressor, said first thermal sensor adapted to generate a sensor signal indicative of a temperature of one of said compressor and the compressor power inverter;a second thermal sensor in communication with the cathode inlet of said fuel cell stack, said second thermal sensor adapted to generate a sensor signal indicative of a temperature of the first fluid at the cathode inlet; anda control system adapted to receive the sensor signal from said first thermal sensor and said second thermal sensor to cause a change in operation of at least one of said compressor, said compressor power inverter, and said humidifier to minimize an amount of heat generated thereby, wherein said control system is configured to adjust operation of one of said heat exchanger and said humidifier to minimize heat introduced to the fuel cell system;wherein the fuel cell system is configured to operate at a minimized power output and a reduced speed of said compressor when a coolant flowing through the fuel cell system leaks or a coolant recirculation pump ceases operation. 17. The fuel cell system of claim 16, wherein said fuel cell stack includes an anode purge outlet. 18. The fuel cell system of claim 17, further comprising an exhaust system in fluid communication with the anode purge outlet of said fuel cell stack.
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