Humidifying device for a fuel cell, method for humidifying a fuel cell membrane and fuel cell
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0959040
(2001-11-27)
|
우선권정보 |
DE-0018850 (1999-04-19) |
국제출원번호 |
PCT/DE00/01298
(2000-04-19)
|
국제공개번호 |
WO00/63982
(2000-10-26)
|
발명자
/ 주소 |
- Herdeg, Wolfgang
- Klos, Holger
- Sattler, Martin
- Hess, Sabine
- Wilhelm, Hans-Dieter
- Habrich, Jurgen
- Eck, Karl
- Keutz, Markus
- Zapp, Thomas
|
출원인 / 주소 |
- Mannesmann AG, Siemens AG
|
대리인 / 주소 |
Cohen, Pontani, Lieberman & Pavane
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
6 |
초록
▼
The humidifying device for a fuel cell has a membrane, one side of which is exposed to cathode exhaust gas of a fuel cell for extracting water vapor from the exhaust gas. A connecting element connects the other side of the membrane to an anode or cathode gas supply to the fuel cell. In operation, wa
The humidifying device for a fuel cell has a membrane, one side of which is exposed to cathode exhaust gas of a fuel cell for extracting water vapor from the exhaust gas. A connecting element connects the other side of the membrane to an anode or cathode gas supply to the fuel cell. In operation, water vapor permeates through the membrane and passes on through the connecting elements to humidify the gas being supplied to the fuel cell. A vacuum pump may additionally be provided to enhance the extraction of water vapor from the exhaust gas. A no metering unit allows accurate metering of the humidity of the cathode or anode gas supply.
대표청구항
▼
1. A humidifying device for a fuel cell, having a semi-permeable membrane (2), which is coupled to the cathode exhaust gas (20) of a fuel cell, the cathode exhaust gas (20) being situated on one side of the membrane (2), characterized by a connecting element (22) which firstly has a gas line and act
1. A humidifying device for a fuel cell, having a semi-permeable membrane (2), which is coupled to the cathode exhaust gas (20) of a fuel cell, the cathode exhaust gas (20) being situated on one side of the membrane (2), characterized by a connecting element (22) which firstly has a gas line and acts as a line connecting the other side of the membrane (2) to the anode or cathode gas supply (30) to the fuel cell, so that in operation water vapor penetrates through the membrane (2) in order to humidify the gas which is guided to the fuel cell, said connecting element further comprising means for regulating the water vapor fed to the gas which is guided to the fuel cell. 2. The humidifying device as claim in claim 1, characterized in that the means for regulating includes a metering unit (5) connected to a control circuit. 3. A humidifying device for a fuel cell, having a semi-permeable membrane (2), which is coupled to the cathode exhaust gas (20) of a fuel cell, the cathode exhaust gas (20) being situated on one side of the membrane (2), and a connecting element (22) which firstly has a gas line and acts as a line connecting the other side of the membrane (2) to the anode or cathode gas supply (30) to the fuel cell, so that in operation water vapor penetrates through the membrane (2) in order to humidify the gas which is guided to the fuel cell, characterized in that the connecting element (22) has a vacuum pump (4) for maintaining a concentration gradient of the humidity between the two sides of the membrane (2). 4. The humidifying device as claimed in claim 3, characterized in that the means for regulating includes a metering unit (5) connected to a control circuit. 5. A method for humidifying a fuel cell membrane, in which cathode exhaust gas (20) from the fuel cell and containing a humidity is guided past one side of a humidifying membrane (2) and water vapor, by means of a concentration gradient of the humidity, passes to the other side of the humidifying membrane (2), and the water vapor is transferred to a gas which is guided to the fuel cell, characterized by transferring the water vapor from the other side of the humidifying membrane (2), via a connecting element (22) which has a gas line and a metering unit (5), to the anode or cathode gas supply (30). 6. The method as claimed in claim 5, characterized in that the passage of water vapor through the humidifying membrane (2) is assisted by actuation of a vacuum pump (4). 7. The method as claimed in claim 6, characterized in that the concentration gradient is maintained by a vacuum pump (4). 8. The method as claimed in claim 7, characterized in that that concentration gradient is maintainied by the exchange of gas. 9. The method as claimed in claim 8, characterized in that the humidity is temporarily stored in a vessel.
이 특허에 인용된 특허 (6)
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Grasso Albert P. ; Cipollini Ned E. ; Breault Richard D., Fine pore enthalpy exchange barrier.
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Strasser Karl (Erlangen DEX), Fuel cell and method for moistening the electrolyte of the fuel cell.
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Vanderborgh Nicholas E. (Los Alamos NM) Hedstrom James C. (Los Alamos NM), Fuel cell water transport.
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Buswell Richard F. (Glastonbury CT) Clausi Joseph V. (Portland CT) Cohen Ronald (Boca Raton FL) Louie Craig (Vancouver CAX) Watkins David S. (Coquitlam CAX), Hydrocarbon fueled solid polymer fuel cell electric power generation system.
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Fleck Wolfram (Erbach DEX), Process and apparatus for humidifying process gas for operating fuel cell systems.
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Henry H. Voss CA; Russell H. Barton CA; Brian W. Wells CA; Joel A. Ronne CA; Harald Anton Nigsch DE, Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream.
이 특허를 인용한 특허 (7)
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Timmerman,Mark; Mulvenna,Alan John, Capacitor bank for electrical generator.
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Sunako, Takayuki; Kabasawa, Yasunari; Yanagisawa, Ichiro, Connecting structure of a liquid sending apparatus, fuel-cell type electricity generating apparatus, and electronic device.
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Hoffjann, Claus; Schuldzig, Hansgeorg, Cooling assembly for cooling a thermal body for an aircraft.
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Matsui, Nobuki; Ikegami, Shuji; Okamoto, Yasunori; Yonemoto, Kazuo, Humidification apparatus for fuel cells.
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Wang, Chuanfu; Zhou, Yong, Humidifying devices and methods for proton exchange membranes of fuel cells.
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Imamura,Tomonori; Kawai,Toshiyuki, Moisture sensor and fuel cell system using same.
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Gilbert, Maik, Water atomization apparatus for a fuel cell system and also a method for humidifying a gas flow supplied to a fuel cell system.
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