CN1474473A - Fuel supply device of fuel cell system - Google Patents
Fuel supply device of fuel cell system Download PDFInfo
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- CN1474473A CN1474473A CNA021291365A CN02129136A CN1474473A CN 1474473 A CN1474473 A CN 1474473A CN A021291365 A CNA021291365 A CN A021291365A CN 02129136 A CN02129136 A CN 02129136A CN 1474473 A CN1474473 A CN 1474473A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
This invention discloses a fuel supply device for a fuel battery system, fuel battery stack a fuel supply device, an air supply device and electric energy output device. The said fuel supply device includes a fuel tank filling liquid fuel to high density liquid, powder or colloid, a fuel dilution water tank arranged at a side of the fuel tank and supplying fuel to the fuel pole of the battery stack and mixed with the liquid fuel, a buffer tank connected with the fuel tank and water tank and mixing the high density liquid fuel and water to proper density, a fuel circulation tube connecting the buffer tank to the fuel pole, and a fuel pump pumping fuel to the fuel pole set in the middle of the circulation tube.
Description
Technical Field
The present invention relates to a fuel cell system, and more particularly, to a fuel supply device for a fuel cell system.
Background
Most of the energy used by fuels is derived from chemical fuels. The use of chemical fuel not only pollutes the atmosphere, but also causes bad influences such as acid rain and global warming, and the energy use efficiency is very low.
In order to solve the various problems of the above chemical fuels, fuel cell systems have been developed in recent years. The fuel cell is a device that supplies fuel to the cathode of the cell and supplies external oxygen to the anode, and the fuel cell and the anode electrochemically react with each other. The power generation method of the fuel cell is not an oxidation reaction of fuel combustion but a method of directly converting a potential difference into electric energy by an electrochemical reaction of hydrogen and oxygen. The fuel cell does not generate NOx and SOx, does not generate noise and vibration, has thermal efficiency which is the sum of generated energy and heat and is more than 80 percent, does not generate harmful gases such as NOx, SOx and the like, and is a clean power generation system.
As illustrated in fig. 1, a related art fuel cell system is constituted by the following structure: a fuel cell stack 10 provided with a fuel electrode 11 and an air electrode 12, the fuel cell stack functioning to generate electric power by an electrochemical reaction of hydrogen and oxygen; a fuel supply device 20 for extracting hydrogen from a fuel source and supplying the generated hydrogen to the fuel electrode 11; an air supply device 30 that supplies oxygen to the air electrode 12 of the fuel cell stack 10; an electric power output device 40 that supplies electric power generated from the fuel cell stack 10 to a load; and a control device (not shown) that regulates the fuel cell stack 10, the fuel supply device 20, the air supply device 30, and the electric power output device 40.
A reformer 25 is generally provided between the fuel cell stack 10 and the fuel source 21, the reformer 25 being comprised of a desulfurizer 26 that eliminates sulfur S from the fuel source; a reformer 27 for generating hydrogen by contact reaction with steam; a CO converter 28 and a CO eliminator 29 for separating carbon dioxide, carbon monoxide, nitrogen, water vapor, etc. from the generated hydrogen gas.
In the figure, 22 denotes a fuel pump, 31 denotes an air compressor, 32 denotes a humidifier, 41 denotes a transformer, and 42 denotes a load.
The prior art fuel cell system acts as follows: when commanded by the control device, the fuel source 21 generally passes through the desulfurizer 26, the reformer 27, the CO converter 28, and the CO eliminator 29 of the reformer 25 in this order, generates hydrogen gas, and supplies the generated hydrogen gas to the fuel electrode 11 of the fuel cell stack 10. At the same time, air is supplied to the air electrode 12 of the fuel cell stack 10 by the air supply device 30, and oxidation-reduction reaction occurs with the fuel in the fuel electrode 11, thereby generating electric power.
The fuel cell system described above is usable in a household power generation system because the load of the reformer 25 of the hydrogen generation device is too large and complicated, but is not economical in terms of load and price because it is carried outside. In order to solve the above problems, a reformer 25 of a hydrogen generator having a complicated structure and a large load is eliminated, and as shown in fig. 2, a high pressure gas cylinder 50 for compressing stored hydrogen is detachably connected to the fuel electrode 11 of the fuel cell stack 10. However, when the high-pressure hydrogen gas cylinder 50 is used or hydrogen gas is filled into the high-pressure hydrogen gas cylinder 50, high-pressure compression and inflation are required to be directly performed, which is difficult for general people, and has a considerable risk, and the replacement cycle of fuel is short, so that the use is inconvenient.
Disclosure of Invention
The invention aims to provide a fuel supply device of a fuel cell system, which is convenient to carry and can supply fuel for a long time.
In order to solve the technical problem, the invention adopts the technical scheme that the fuel supply device of the fuel cell system comprises a fuel cell stack which comprises an electrolyte membrane and a fuel pole and an air pole which are positioned at two sides of the electrolyte membrane, wherein the fuel of the fuel pole and the air of the air pole generate electrochemical reaction to generate electric energy; a fuel supply device for supplying liquid fuel to a fuel electrode of the fuel cell stack; an air supply device for supplying air to the air electrode of the fuel cell stack; an electric power output device for supplying electric power generated in the fuel cell stack to a load, wherein the fuel supply device includes a fuel tank for filling liquid fuel in a high concentration liquid state or a powder or gel state; a fuel diluting water tank which is arranged on one side of the fuel tank, supplies fuel to the fuel electrode of the fuel cell stack, is filled with water, and can be mixed with the liquid fuel in the fuel tank; a buffer tank which is connected with the fuel tank and the water tank through a fuel supply pipe and a water supply pipe respectively and mixes the high-concentration liquid fuel and water into a proper concentration; a fuel circulation pipe for connecting the buffer tank to the fuel electrode of the fuel cell stack; and a fuel pump disposed at the middle position of the fuel circulation pipe and used for pumping the fuel to the fuel electrode.
The buffer tank is provided with a concentration sensor which can sense the concentration of the liquid fuel mixed with water, and the concentration sensor is also provided with a display device which informs a user of the replacement time.
The water supply pipe is provided with a detachable humidifying water tank capable of storing certain water.
The fuel tank, the fuel diluting water tank, and the humidifying water tank are integrated in consideration of appropriate amounts of fuel and water.
The invention has the beneficial effects that: the high-concentration liquid fuel of the present invention is stored in a fuel tank in the form of powder, liquid or gel 1, and is supplied to the fuel electrode of the fuel cell stack after being mixed with water in a buffer tank, so that the supply time of the fuel is prolonged, the alternation time of the fuel tanks is delayed, and the use is convenient. The fuel tank, the fuel diluting water tank, and the humidifying water tank are detachable, and the fuel cell system can be carried and used. The fuel tank and the two water tanks are integrally formed, and the fuel tank and the water tanks are integrally switched. The water passing through the air electrode is recycled, preventing unnecessary energy loss.
Drawings
Fig. 1 is a flowchart of a fuel supply apparatus of a fuel cell system of the related art.
Fig. 2 is a partial flowchart of a fuel supply apparatus of a fuel cell system of the related art.
Fig. 3 is a flowchart of a fuel supply apparatus of the fuel cell system of the present invention.
Fig. 4 is a cross-sectional view of a fuel cell stack.
Fig. 5 is a flowchart of a fuel supply apparatus of a fuel cell system according to another embodiment of the present invention.
In the figure, 110: a fuel cell stack; 113: a fuel electrode; 114: an air electrode; 120: a fuel supply device; 121: a fuel tank; 122: a fuel dilution water tank; 123: a fuel supply pipe; 123 a: a fuel pump; 124: a dilution water supply pipe; 124 a: a 1 st water pump; 125: a buffer tank; 126: a fuel circulation pipe; 127a, 127 b: a fuel regulating valve; 130: an air supply device; 132: an air supply pipe; 140: an air humidifying device; 141: a humidifier; 142: a humidifying water tank; 150: a water circulation device; 152: a gas-liquid separator; 160: and an electric energy output device.
Detailed Description
The fuel supply apparatus of the fuel cell system of the present invention will be described in further detail with reference to the accompanying drawings and embodiments:
as shown in fig. 3, the fuel cell system of the present invention includes the following structure: a fuel cell stack 110 for generating electric energy and heat energy by an electrochemical reaction of hydrogen and oxygen; a fuel supply device 120 that supplies a liquid fuel containing hydrogen gas to the fuel electrode 113 of the fuel cell stack 110; an air supply device 130 for supplying oxygen in air to the air electrode 114 of the fuel cell stack 110; an air humidifying device 140 provided at an intermediate position of the air supply device 130 to humidify the air; a water circulation device 150 that recirculates water through the air electrode 114 to the air humidification device 140; an electric power output device 160 that supplies electric power generated from the fuel cell stack 110 to a load; and a control device (not shown) for regulating the fuel cell stack 110, the fuel supply device 120, the air supply device 130, the air humidification device 140, the water circulation device 150, and the electric power output device 160.
As shown in fig. 4, the fuel cell stack 110 is composed of a plurality of unit cells 111; each unit cell 111 is constituted by an electrolyte membrane 112; a fuel electrode 113 and an air electrode 114 laminated on both sides of the electrolyte membrane 112; separators 115 and 116 laminated outside the fuel electrode 113 and the air electrode 114. The separator functions to contact the fuel and air on the fuel electrode 113 and the air electrode 114, respectively, and to enable circulation of the air and fuel. Current collectors 117, 118 laminated on the outer sides of the two-side separators 115, 116 and forming collector electrodes.
The electrolyte membrane 112 is a membrane made of a polymer material that can pass hydrogen ions, such as a polymer ion exchange membrane that is conductive in a wet state.
The fuel electrode 113 and the air electrode 114 are composed of a support and catalyst layers stacked on both sides of the support. The support is made of carbon black paper or carbon black cloth, and platinum suitable for the reduction reaction of oxygen is used as the catalyst layer. In order to increase the effective surface area for catalysis, a catalyst layer is formed by coating the surfaces of tiny platinum and tiny carbon particles.
The separators 115 and 116 are made of graphite-like material having good electrical conductivity and strong corrosion resistance, and each inner surface in contact with the fuel electrode 113 and the air electrode 114 is formed with a fuel passage Cf and an air passage Co through which the fuel liquid passes. The separators 115, 116 disposed between the unit cells 111 have one side thereof forming the fuel passage Cf and the other side thereof forming the air passage Co. The separators 115, 116 disposed on both ends of the fuel cell stack 110 form fuel channels Cf or air channels Co only on the inner side thereof. The fuel passage Cf and the air passage Co provided in the separators 115, 116 communicate with each other in a plurality of rows.
The current collectors 117, 118 are generally formed of a copper conductor in order to output electric power from the fuel cell stack 110.
The fuel supply device 120 includes the following structure: a fuel tank 121 for filling the liquid fuel in a high-concentration liquid state, or in a powdery or colloidal state; a fuel diluting water tank 122 which is arranged on one side of the fuel tank 121, is filled with water and is capable of mixing with the liquid fuel in the fuel tank 121 in order to supply the fuel to the fuel electrode 113; a buffer tank 125 which is connected to the fuel tank 121 and the fuel diluting water tank 122 via a fuel supply pipe 123 and a diluting water supply pipe 124, respectively, and mixes the high-concentration liquid fuel and water into a suitable concentration; a fuel circulation pipe 126 that connects the buffer tank 125 to the fuel electrode 113 in a circulating manner; a fuel pump 126a that is provided at an intermediate position of the fuel circulation pipe 126 and pumps the fuel toward the fuel electrode 113.
In the fuel supply pipe 123 between the fuel tank 121 and the buffer tank 125, a fuel pump 123a is provided to pump the high-concentration liquid fuel in the fuel tank 121 into the buffer tank 125. A 1 st water pump 124a is provided in the dilution water supply pipe 124 between the fuel dilution water tank 122 and the buffer tank 125 to pump a small amount of water in the fuel dilution water tank 122 into the buffer tank 125.
A concentration sensor D having a display device is provided in the buffer tank 125. The concentration sensor D is provided to sense the concentration of the liquid fuel, and the replacement time of the fuel tank 121 is grasped.
As shown in fig. 3, the fuel tank 121 may be provided separately from the fuel diluting water tank 122 and the humidifying water tank 142. As shown in fig. 5, the fuel tank 121 may be formed integrally with the fuel diluting water tank 122 and the humidifying water passage tank 142.
The air supply device 130 is composed of an air compressor 131 and an air supply pipe 132. The air compressor 131 functions to compress air in the atmosphere. The air supply pipe 132 functions to connect the air compressor 131 to the air pole 114. An air filter 133 purifying air is provided at an inlet of the air compressor 131. A humidifier 141 for appropriately humidifying the air passing through the air supply pipe 132 is provided in the middle of the air supply pipe 132 and at the outlet of the air compressor 131. A check valve 134 for preventing reverse flow of air is provided at an inlet side of the humidifier 141, and an air regulating valve 135 is provided at an outlet side.
The air humidifying device 140 is composed of a humidifier 141 provided at a middle position of the air supply pipe 132; a humidifying water supply pipe 143 connecting the humidifier 141 and the humidifying water tank 142; a 2 nd water pump 144 provided at an intermediate position of the humidifying water supply pipe 143 and pumping water into the humidifier 141. The humidifying water supply pipe 143 is provided with a water supply valve 145 for supplying the water in the humidifying water tank 142 to the humidifier 141.
The humidifier 141 is generally formed of an ultrasonic type, a bubble type, a heating type, or the like.
In general, the humidifying water tank 142 is connected to water at home. When the humidifier is used for carrying, the humidifier is constituted by a humidifying water tank 142 for storing a certain amount of water.
In consideration of the fact that the humidification water tank 142 is replaced and used together with the fuel tank 121, the fuel tank 121 and the dilution water tank 122 are integrally formed at a predetermined volume ratio according to the amount of fuel and water used, as shown in fig. 5.
The water circulation device 150 includes the following structure: a water circulation pipe 151 connecting the air electrode 114 and the humidification water supply pipe 143; a gas-liquid separator 152 disposed at an intermediate position of the water circulation pipe 151, separating water passing through the fuel cell stack 110 from atmospheric water, and circulating the water to the humidifier 141; a water switching valve 153 of a three-way valve provided at a connection point of the water supply pipe 143 for humidification and the water circulation pipe 151 and capable of changing a passage of water.
The gas-liquid separator 152 is provided with a water level sensor L. The waterlevel sensor is used to alternately connect the humidification water tank 142 and the humidification water supply pipe 143 to each other in a repeated manner according to the amount of water separated.
Reference numeral 154 denotes an exhaust pipe.
As described above, the fuel supply device of the fuel cell system according to the present invention has the following effects:
the controller issues a drive command to drive the 1 st fuel pump 123a and the 1 st water pump 124a of the fuel supply device 120, so that the 1 st fuel pump 123a pushes the high-concentration liquid fuel from the fuel tank 121 into the buffer tank 125, and the 1 st water pump 124a pushes the water from the fuel diluting water tank 122 into the buffer tank 125.
In the buffer tank 125, the high concentration liquid fuel in the fuel tank 121 and the water in the fuel diluting water tank 122 are mixed to have a predetermined new concentration, and the diluted liquid fuel is driven by the fuel pump 126a, is pushed from above the buffer tank 125 into the fuel electrode 113 of the fuel cell stack 110, and is electrochemically reacted with the oxygen supplied to the air electrode 114 to generate electric energy, and then is returned to the buffer tank 125 through the fuel circulation pipe 126.
The fuel control valves 127a and 127b are controlled by the control device to open and close, so that the liquid fuel can smoothly circulate, and the concentration sensor D continuously senses the concentration of the liquid fuel and informs a user of the concentration via the display device.
At the same time, the air compressor 131 is driven to compress air in the atmosphere, and the compressed air is supplied to the air electrode 114 of the fuel cell stack 110 through the air supply pipe 132. The air passes through the humidifier 141 at the center, is humidified into water vapor, passes through the air adjusting valve 135, and is supplied to the air electrode 114, thereby generating electric power.
In the above process, the air supply device 130 is opened while the liquid fuel passes through the fuel passage Cf formed in the separators 115, 116 of the fuel cell stack 110 through the fuel circulation pipe 126, so that air in the atmosphere is supplied through the air passage Co formed in the separators 115, 116 through the air supply pipe 132.
At this time, the water supply valve 145 is opened, the 2 nd water pump 144 is driven, and the water in the humidification water tank 142 is supplied to the humidifier 141 through the humidification water supply pipe 143, and the air is converted into steam in the humidifier 141 and supplied to the fuel cell stack 110.
As described above, the liquid fuel and air supplied to the fuel passage Cf and the air passage Co of the separators 115, 116 are in contact with the fuel electrode 113 and the air electrode 114, respectively, and generate electric energy through electrochemical reaction.
H at the fuel electrode 113+The electrochemical oxidation reaction of (1):
in the electrolyte membrane 112, ions generated by the redox reaction are transported, and in the air electrode 114, an electrochemical reduction reaction of oxygen is performed:
therefore, a potential difference is generated between the fuel electrode 113 and the air electrode 114, the potential difference is output through the collectors 117, 118 provided at both ends of the stack, and the current output from the collectors 117, 118 is supplied to the load.
Air passing through the air electrode 114 of the fuel cell stack 110, water therein passing through the water circulation pipe 151, is discharged through the gas-liquid separator 152 while water remains, the water switching valve 153 closes the 2 nd water pump 144, and the remaining water is supplied to the humidifier 141 through the 2 nd water pump 144 when the gas-liquid separator 152 is turned on. At this time, the amount of water stored in the gas-liquid separator 152 is determined based on the water level sensor L provided in the gas-liquid separator 152. When the amount of water reaches a level that can replace the humidification water tank 142, the gas-liquid separator 152 is separately connected to the humidifier 141 under the control of the control device.
When the fuel tank 121, the fuel diluting water tank 122, and the humidifying water tank 142 are replaced, the fuel control valves 127a and 127b are closed, and then the fuel tank 121 is replaced. However, as shown in fig. 5, when the fuel tank 121, the fuel diluting water tank 122, and the humidifying water tank 142 are integrally formed, it is not necessary to replace each tank individually, but they are replaced at a time.
With the above configuration, smooth fuel supply can be performed without the converter. Therefore, the load increase and cost increase of the system due to the provision of the converter are reduced.
Moreover, as the fuel tank can be filled with the liquid fuel, the portable fuel tank is portable and convenient to use, and reduces the danger coefficient in use.
The fuel tank is filled with a highly compressed liquid fuel in a powder, liquid or gel state, and the fuel is supplied to the buffer tank 125 according to the required amount, mixed and then supplied to the fuel cell stack, so that a large amount of fuel can be stored even when the fuel tank is unloaded, thereby prolonging the replacement cycle of the fuel tank.
The humidifying water for humidifying air can be used for charging water, and can also be used as a detachable water tank, so that the humidifying water tank can be carried and used.
The air discharged from the air electrode is discharged to a water circulation humidifier together with the air, and the air is humidified by water for heating. Particularly, when the heating humidifier is used, the high humidifying effect can be achieved even if a small amount of heat is used, and energy is saved.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the spirit and scope of the present invention.
Claims (4)
1. A fuel supply device of a fuel cell system, the fuel cell system comprises a fuel cell stack (110) comprising an electrolyte membrane (112) and a fuel electrode (113) and an air electrode (114) which are positioned at two sides of the electrolyte membrane (112), and the fuel of the fuel electrode (113) and the air of the air electrode (114) generate electrochemical reaction to generate electric energy; a fuel supply device (120) that supplies liquid fuel to a fuel electrode (113) of the fuel cell stack (110); an air supply device (130) that supplies air to an air electrode (114) of the fuel cell stack (110); an electric power output device (160) for supplying electric power generated in the fuel cell stack (110) to a load, characterized in that the fuel supply device (120) includes a fuel tank (121) for filling liquid fuel in a high concentration liquid state or a powder or gel state; a fuel diluting water tank (122) which is arranged on one side of the fuel tank (121), supplies fuel to a fuel electrode (113) of the fuel cell stack, is filled with water, and can be mixed with the liquid fuel in the fuel tank (121); a buffer tank (125) which is connected to the fuel tank (121) and the water tank through a fuel supply pipe (123) and a water supply pipe, respectively, and mixes the high-concentration liquid fuel and water into a proper concentration; a fuel circulation pipe (126) that connects the buffer tank (125) to the fuel electrode (113) of the fuel cell stack (110) in a circulating manner; and a fuel pump 126a provided at an intermediate position of the fuel circulation pipe 126 and drawing the fuel toward the fuel electrode 113.
2. The fuel supply device of the fuel cell system according to claim 1, wherein the buffer tank (125) is provided with a concentration sensor (D) capable of sensing a concentration of the liquid fuel mixed with water, and the concentration sensor is further provided with a display device for notifying a user of a replacement time.
3. The fuel supply device of the fuel cell system according to claim 1, wherein the water supply pipe is provided with a detachable humidification water tank (142) capable of storing a certain amount of water.
4. The fuel supply device of the fuel cell system according to claim 3, wherein the fuel tank (121), the fuel diluting water tank (122), and the humidifying water tank (142) are integrated in consideration of appropriate amounts of fuel and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021291365A CN1234186C (en) | 2002-08-19 | 2002-08-19 | Fuel supply device of fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021291365A CN1234186C (en) | 2002-08-19 | 2002-08-19 | Fuel supply device of fuel cell system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474473A true CN1474473A (en) | 2004-02-11 |
| CN1234186C CN1234186C (en) | 2005-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021291365A Expired - Fee Related CN1234186C (en) | 2002-08-19 | 2002-08-19 | Fuel supply device of fuel cell system |
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| Country | Link |
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| CN (1) | CN1234186C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341184C (en) * | 2004-04-26 | 2007-10-03 | 株式会社日立制作所 | Fuel cell power source, method of operating thereof and portable electronic equipment |
| CN100434904C (en) * | 2005-12-14 | 2008-11-19 | 英属盖曼群岛商胜光科技股份有限公司 | Method for computing concentration of liquid fuel battery |
| CN100434911C (en) * | 2005-06-02 | 2008-11-19 | 英属盖曼群岛商胜光科技股份有限公司 | Method in use for direct methanol fuel cells for calculating concentration of fuel |
| CN101461080B (en) * | 2006-05-29 | 2012-01-25 | Lg化学株式会社 | Fluid tank for fuel cell |
| CN101568761B (en) * | 2006-11-24 | 2013-01-02 | 丰田自动车株式会社 | Fuel supply system |
| CN113224352A (en) * | 2021-03-08 | 2021-08-06 | 杰锋汽车动力系统股份有限公司 | Humidifier for vehicle-mounted hydrogen fuel cell |
-
2002
- 2002-08-19 CN CNB021291365A patent/CN1234186C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341184C (en) * | 2004-04-26 | 2007-10-03 | 株式会社日立制作所 | Fuel cell power source, method of operating thereof and portable electronic equipment |
| CN100434911C (en) * | 2005-06-02 | 2008-11-19 | 英属盖曼群岛商胜光科技股份有限公司 | Method in use for direct methanol fuel cells for calculating concentration of fuel |
| CN100434904C (en) * | 2005-12-14 | 2008-11-19 | 英属盖曼群岛商胜光科技股份有限公司 | Method for computing concentration of liquid fuel battery |
| CN101461080B (en) * | 2006-05-29 | 2012-01-25 | Lg化学株式会社 | Fluid tank for fuel cell |
| CN101568761B (en) * | 2006-11-24 | 2013-01-02 | 丰田自动车株式会社 | Fuel supply system |
| CN113224352A (en) * | 2021-03-08 | 2021-08-06 | 杰锋汽车动力系统股份有限公司 | Humidifier for vehicle-mounted hydrogen fuel cell |
| CN113224352B (en) * | 2021-03-08 | 2022-05-24 | 杰锋汽车动力系统股份有限公司 | Humidifier for vehicle-mounted hydrogen fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1234186C (en) | 2005-12-28 |
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Granted publication date: 20051228 |