JP7511332B2 - 燃料電池システムの排気圧力調節装置 - Google Patents
燃料電池システムの排気圧力調節装置 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims description 44
- 239000006260 foam Substances 0.000 claims description 129
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000011800 void material Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 59
- 210000004027 cell Anatomy 0.000 description 35
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04761—Pressure; Flow of fuel cell exhausts
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- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04104—Regulation of differential pressures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02745—Throttle passages by passing through a mass of particles or a porous member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04783—Pressure differences, e.g. between anode and cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/142—Emission reduction of noise acoustic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/32—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel cell
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Fuel Cell (AREA)
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Description
また、本発明は、従来の排気圧力調節装置に比べ相対的にコンパクトで軽い構造を有し得る排気圧力調節装置を提供することに目的がある。
本発明の課題は、以上で言及した課題に制限されず、言及されていない他の課題は、以下の記載から当業者に明確に理解されるはずであろう。
第一、多孔性フォーム及びそれを圧縮又は膨張させるように設けられる調節装置を含み排気圧力を調節するように設けられることで、排気圧力調節装置を通過しつつ排気ガスの乱流成分が低減され、それによって排気ガスの流動騒音が低減され得る。
第二、従来に比べ排気圧力調節装置の構成が簡単になり軽量化が可能である。
本発明の効果は、以上で言及した効果に制限されず、言及されていない他の効果は、特許請求範囲の記載から当業者に明確に理解されるはずであろう。
100:排気圧力調節装置
110:多孔性フォーム
120:調節装置
121:駆動部
122:移動部
130:ハウジング
140:第1支持部
150:第2支持部
160:リニアガイド
L:多孔性フォームの長さ
φ:空隙率
VS:多孔性フォームの体積
VV:多孔性フォーム内の空隙全体の体積
Claims (10)
- 排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記調節装置は、駆動部と、前記多孔性フォームの他側端と結合され、前記駆動部から駆動力の提供を受けて線形(linear)移動される移動部とを含み、
前記駆動部は、前記移動部を線形移動させるための駆動力を提供するシリンダーを含む、燃料電池システムの排気圧力調節装置。 - 排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記排気管から排出ガスが漏洩することを防止するために、前記調節装置及び前記調節装置が設置される前記排気管の一部分を取り囲むハウジングをさらに含む、燃料電池システムの排気圧力調節装置。 - 排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記多孔性フォームの一側端を前記排気管の内周面に固定させつつ、前記多孔性フォームの一側端が排出ガスの流動によって変形されることを抑制するために設けられる第1支持部をさらに含み、
前記第1支持部は、前記排気管の内周面から前記排気管の中心部に向かって延長された形状である、燃料電池システムの排気圧力調節装置。 - 排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記調節装置は、駆動部と、前記駆動部から駆動力の提供を受けて線形移動される移動部とを含み、
前記多孔性フォームの他側端と前記移動部を結合するために設けられる第2支持部をさらに含む、燃料電池システムの排気圧力調節装置。 - 排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記調節装置は、駆動部と、前記駆動部から駆動力の提供を受けて線形移動される移動部とを含み、
前記移動部の線形移動をガイドするために設けられるリニアガイドをさらに含む、燃料電池システムの排気圧力調節装置。 - 前記調節装置により前記多孔性フォームが圧縮又は膨張されることによって、前記多孔性フォームの空隙率(porosity)が変化され、前記多孔性フォームを通過する排出ガスが受ける流動抵抗が可変されて前記排気管に流動される排出ガスの差圧が調節され、
前記空隙率は、以下の式によって求められる値である、請求項1に記載の燃料電池システムの排気圧力調節装置。
- 前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端は上流側に位置し、前記多孔性フォームの他側端は下流側に位置する、請求項1に記載の燃料電池システムの排気圧力調節装置。
- 前記第2支持部は、前記多孔性フォームの他側端が排出ガスの流動によって変形されることを抑制するために、前記排気管の内周面から前記排気管の中心部に向かって延長され前記多孔性フォームの他側端と結合される、請求項4に記載の燃料電池システムの排気圧力調節装置。
- 前記排気管には、前記第2支持部が移動可能にするために、前記第2支持部が移動される方向に延長されたスロットが形成される、請求項4に記載の燃料電池システムの排気圧力調節装置。
- 排気管と、
前記排気管内に設置され内部に多数の空隙(pore)を有する多孔性フォーム(porous foam)と、
前記排気管に流動される排出ガスの差圧(differential pressure)を調節するために、前記多孔性フォームを圧縮又は膨張させるように設けられる調節装置とを含み、
前記排気管内で前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端が前記排気管に固定され、前記多孔性フォームの他側端が前記調節装置に結合されて、
前記調節装置によって前記多孔性フォームの他側端が移動されるにつれ、前記多孔性フォームの、前記排出ガスの流動方向に延長された長さが増加又は減少され、
前記排出ガスの流動方向を基準に、前記多孔性フォームの一側端は上流側に位置し、前記多孔性フォームの他側端は下流側に位置する、燃料電池システム。
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