JP2011105534A - Hydrogen supply apparatus for internal combustion engine and fuel cell - Google Patents

Hydrogen supply apparatus for internal combustion engine and fuel cell Download PDF

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JP2011105534A
JP2011105534A JP2009260542A JP2009260542A JP2011105534A JP 2011105534 A JP2011105534 A JP 2011105534A JP 2009260542 A JP2009260542 A JP 2009260542A JP 2009260542 A JP2009260542 A JP 2009260542A JP 2011105534 A JP2011105534 A JP 2011105534A
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hydrogen
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JP2011105534A5 (en
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Haruo Ota
晴夫 太田
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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
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydrogen supply apparatus which can generate hydrogen from water more efficiently than the conventional electrolysis, and also can generate hydrogen without requiring electric power if sunlight is present, and can be mounted even to vehicles such as automobiles, under such circumstances that, though hydrogen used as a fuel which replaces petroleum is developed as the fuel for an automobile, since risk in case of an accident is extremely high when a large quantity of hydrogen is loaded on a fuel tank, such an idea that hydrogen generated by electrolyzing water is used as a fuel is considered, but, in electrolysis for which electric power is used and potential is applied to electrodes, the efficiency of energy obtained by using the generated hydrogen as the fuel is low compared with the used electric power. <P>SOLUTION: The hydrogen supply apparatus for an internal combustion engine and a fuel cell is characterized in that light is emitted to a photocatalyst provided in an aqueous solution within a vessel or within a tube to generate hydrogen and oxygen, and the hydrogen or hydrogen and oxygen are supplied to an internal combustion engine and a fuel cell, wherein the photocatalytic action of decomposing water into hydrogen and oxygen by emitting light to the photocatalyst in the water is applied. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、光触媒作用を利用して、内燃機関及び燃料電池に水素を供給する水素供給装置に関する。   The present invention relates to a hydrogen supply device that supplies hydrogen to an internal combustion engine and a fuel cell using photocatalysis.

将来のクリーンエネルギーである水素を燃料とする水素エンジン自動車、燃料電池自動車等が開発されているが、燃料の水素を貯蔵する水素タンクを搭載するにあたって、高圧で多量の水素貯蔵にたいしての危険性、及び水素補給施設の設置の金額的な問題もあり、現状では普及するに至っていいない。   Hydrogen engine vehicles, fuel cell vehicles, etc. that use hydrogen as the future clean energy as fuel have been developed, but the danger of storing a large amount of hydrogen at high pressure when installing a hydrogen tank to store hydrogen of fuel, In addition, there is also a problem with the amount of money for installing a hydrogen replenishment facility.

そこで、自動車に水素発生装置を搭載して、水などから水素を生産してエンジンの燃料とする考案がされている。例えば文献１では、水を電気分解してできた水素、酸素をエンジンに送る。文献２では、電気分解して生じた水素ガスを従来の燃料と共に使い従来の燃料の燃費を改善する考案がされている。
特開Ｈ１０−１６８４号公報 特開２００９−５１１７４７号公報 Therefore, a device has been devised in which a hydrogen generator is mounted on an automobile to produce hydrogen from water or the like and use it as an engine fuel. For example, in Document 1, hydrogen and oxygen produced by electrolyzing water are sent to the engine. In Document 2, hydrogen gas generated by electrolysis is used together with a conventional fuel to devise a fuel efficiency improvement of the conventional fuel.
Japanese Patent Laid-Open No. H10-1684 JP 2009-511747 A

しかしながら、前記の水分解方法は、電極に電位をかけて行う従来からの電気分解と同じで両極の金属を変えても水素製造方法としては従来の電気分解と変わりはなく、電気分解に使った電力よりも水素を燃料として得られるエネルギーや電力の効率が低いという問題は解決されていない。   However, the above water decomposition method is the same as the conventional electrolysis performed by applying an electric potential to the electrode. Even if the metal of both electrodes is changed, the hydrogen production method is the same as the conventional electrolysis and used for the electrolysis. The problem that the energy obtained from hydrogen as a fuel and the efficiency of electric power is lower than electric power has not been solved.

本発明は、内燃機関及び燃料電池に水素を製造して供給する水素供給装置において、電極に電位を与えて水を電気分解する従来の方法ではない方法で水素を供給する装置を提供することを課題とする。   The present invention provides a hydrogen supply apparatus for producing and supplying hydrogen to an internal combustion engine and a fuel cell, in which hydrogen is supplied by a method that is not a conventional method for electrolyzing water by applying a potential to an electrode. Let it be an issue.

前記課題を解決するため、本発明では光触媒を用いて光により水を水素と酸素に分解する現象を利用する。つまり、水中の光触媒に光を当てることによって水を瞬時に酸素と水素に分解する強い酸化力を利用する。尚、光触媒の反応を高める助触媒も使用する。また、太陽光を利用することで電力を使わずに水素を発生させる。   In order to solve the above problems, the present invention utilizes a phenomenon in which water is decomposed into hydrogen and oxygen by light using a photocatalyst. In other words, it uses a strong oxidizing power that instantly decomposes water into oxygen and hydrogen by applying light to the photocatalyst in water. A co-catalyst that enhances the reaction of the photocatalyst is also used. In addition, by using sunlight, hydrogen is generated without using electricity.

本発明による水素供給装置は、電気分解に比べ水素発生効率を高めることができる。また、太陽光があれば内燃機関を稼働せずに水素を供給できる。また、大型の水素タンクを搭載することなく水素を供給できる為、安全性が向上する乗り物を提供できる。さらに、水素スタンドなどの水素補給施設も従来の石油系燃料も代替燃料も不要になる。   The hydrogen supply apparatus according to the present invention can increase the hydrogen generation efficiency as compared with electrolysis. Moreover, if there is sunlight, hydrogen can be supplied without operating the internal combustion engine. In addition, since hydrogen can be supplied without installing a large hydrogen tank, a vehicle with improved safety can be provided. In addition, hydrogen supply facilities such as hydrogen stations, conventional petroleum fuels, and alternative fuels are not required.

光触媒の特徴として大きく分けて二つの触媒の構成方法がある。第１は電極とする方法で、例えば内燃機関、又は内燃機関を搭載した乗り物などに装備されている水タンクなどの水貯蔵容器内の水中に光触媒である酸化チタンの電極と助触媒の白金を施した電極を浸す方法。第２は水タンク内に光触媒、又は光触媒と助触媒を敷設、配置又は塗装することも出来る。   There are two general methods for configuring the catalyst as the characteristics of the photocatalyst. The first is a method of using an electrode. For example, an electrode of titanium oxide as a photocatalyst and platinum as a cocatalyst are placed in water in a water storage container such as an internal combustion engine or a vehicle equipped with an internal combustion engine. A method of immersing the applied electrode. Second, a photocatalyst, or a photocatalyst and a cocatalyst can be laid, arranged or painted in the water tank.

以下、本発明の実施例を図面に基づいて説明する。なお、本発明の図面において、同一の参照符号は、同一部分または相当部分を表すものとする。   Embodiments of the present invention will be described below with reference to the drawings. In the drawings of the present invention, the same reference numerals represent the same or corresponding parts.

図１は、本発明の水素供給装置の第１実施例を示す断面模式図である。水タンク１内に酸化チタン電極２と白金電極３を配置し両電極を抵抗８でつないだ閉回路とする。両電極は仕切り板６によって２室に分けてある。これにより水素と酸素を別にして取り出せる。但し、仕切り板６の下方は水タンク１の底部に接しないように隙間をとる。これは水の注入口を一つにする為と２室の水面を同一にする為である。なお、水タンク１には図示していない注入口も設けておく。   FIG. 1 is a schematic cross-sectional view showing a first embodiment of the hydrogen supply apparatus of the present invention. A closed circuit in which a titanium oxide electrode 2 and a platinum electrode 3 are arranged in a water tank 1 and both electrodes are connected by a resistor 8 is used. Both electrodes are divided into two chambers by a partition plate 6. Thereby, hydrogen and oxygen can be taken out separately. However, a gap is provided below the partition plate 6 so as not to contact the bottom of the water tank 1. This is to make the water surface of the two chambers the same to make one water inlet. The water tank 1 is also provided with an inlet not shown.

酸化チタン電極２は光を受ける電極面を水面９に対し平行に設け、浮力装置５により水面９より少し下の水中でキセノンランプ４の光を受けられるように配置し水面の変化に伴って上下移動できる構造となっている。これにより、キセノンランプ４からの光を水の増減に関係なく、常に一定の照度と一定の受光面積で受けることが可能になる。   The titanium oxide electrode 2 has an electrode surface that receives light parallel to the water surface 9 and is arranged so that it can receive the light of the xenon lamp 4 in water slightly below the water surface 9 by the buoyancy device 5. It has a movable structure. Thereby, it becomes possible to always receive light from the xenon lamp 4 with a constant illuminance and a constant light receiving area regardless of the increase or decrease of water.

キセノンランプ４は、酸化チタン電極２の上部の水タンク１外側に配置し、水タンク１に取り付けたアクリル板７を通して酸化チタン電極２へ光を照射する。なお、アクリル板７の両面には酸化チタンを塗布する。これにより光が当たっている間、光触媒の作用によりアクリル板７の表面の汚れを防ぐことができる。   The xenon lamp 4 is disposed outside the water tank 1 above the titanium oxide electrode 2 and irradiates the titanium oxide electrode 2 with light through an acrylic plate 7 attached to the water tank 1. Titanium oxide is applied to both surfaces of the acrylic plate 7. This makes it possible to prevent the surface of the acrylic plate 7 from being soiled by the action of the photocatalyst while it is exposed to light.

酸化チタン電極２はキセノンランプ４の光を受け酸素を発生し、白金電極３からは水素を発生する。水素は内燃機関の燃料として燃焼室へ送られる。酸素は内燃機関の空気吸入装置へ送ることでより酸素密度を高めることができる。なお、キセノンランプ４の電源は任意でよいが、微弱な電力ですむため図示しない内燃機関の発電機による電力で充分賄うことができる。また、両電極の枚数や表面積は水タンク１の容量や水素の供給量により任意にして良い。   The titanium oxide electrode 2 receives oxygen from the xenon lamp 4 to generate oxygen, and the platinum electrode 3 generates hydrogen. Hydrogen is sent to the combustion chamber as fuel for the internal combustion engine. By sending oxygen to the air intake device of the internal combustion engine, the oxygen density can be further increased. Although the power source of the xenon lamp 4 may be arbitrary, it can be sufficiently covered with electric power generated by a generator of an internal combustion engine (not shown) because it requires only weak electric power. Further, the number and surface area of both electrodes may be arbitrarily determined depending on the capacity of the water tank 1 and the supply amount of hydrogen.

図２は、本発明の第２実施例を示す断面模式図である。酸化チタン電極２に照射する光をキセノンランプ４だけでなく太陽光も加えたことを特徴とする。また、酸化チタン電極２まで太陽光を導き照射する為にグラスファイバー１０を装備することも特徴とする。   FIG. 2 is a schematic sectional view showing a second embodiment of the present invention. It is characterized in that not only the xenon lamp 4 but also sunlight is added to the titanium oxide electrode 2. Further, it is also characterized in that a glass fiber 10 is provided to guide and irradiate sunlight to the titanium oxide electrode 2.

グラスファイバー１０は酸化チタン電極２側の水タンク１上部から水中まで通して酸化チタン電極２上部に配設する。これにより太陽光の照度の減少を抑えることができる。グラスファバー１０の外側先端には太陽光をより多く集めるための集光装置１１を備え、太陽光を酸化チタン電極２に照射する先端には光をより拡散するための光拡散装置１２を備えている。水タンク１下部にはキセノンランプ４を備えアクリル板７を通してチタン電極２に光を照射する事が出来る。なお、集光装置１１及び光拡散装置１２の表面にも酸化チタンを施してある。これにより表面の汚れを防ぎ太陽光の照度を落とさずに酸化チタン電極２に照射することができる。   The glass fiber 10 passes from the upper part of the water tank 1 on the titanium oxide electrode 2 side to the water and is disposed on the upper part of the titanium oxide electrode 2. Thereby, the fall of the illumination intensity of sunlight can be suppressed. A condensing device 11 for collecting more sunlight is provided at the outer tip of the glass fiber 10, and a light diffusing device 12 for further diffusing light is provided at the tip for irradiating the titanium oxide electrode 2 with sunlight. ing. A xenon lamp 4 is provided at the bottom of the water tank 1, and light can be irradiated to the titanium electrode 2 through the acrylic plate 7. Titanium oxide is also applied to the surfaces of the light collecting device 11 and the light diffusing device 12. Thereby, it is possible to prevent the surface from being soiled and to irradiate the titanium oxide electrode 2 without reducing the illuminance of sunlight.

酸化チタン電極２と白金電極３は水タンク１底部に配設し、酸化チタン電極２には傾斜を与えておく。これにより、酸化チタン電極２下側から発生する酸素も滞らず傾斜に沿って上方へ流れて行くことが出来る。なお、酸化チタン電極２は水タンク１下の部分に装備されたキセノンランプ４の光も受けられるように両面に酸化チタンを施してある。これにより、太陽光があれば内燃機関が稼働していなくても水素を生産し水素タンクなどに貯めることができる。また、内燃機関が稼働すれば図示しない内燃機関の発電機からの電力によりキセノンランプ４からも照射できるので水素供給効率が向上する。   The titanium oxide electrode 2 and the platinum electrode 3 are disposed at the bottom of the water tank 1 and the titanium oxide electrode 2 is inclined. Thereby, the oxygen generated from the lower side of the titanium oxide electrode 2 can also flow upward along the slope. The titanium oxide electrode 2 is provided with titanium oxide on both sides so that it can receive light from a xenon lamp 4 provided in the lower part of the water tank 1. Thereby, if there is sunlight, even if the internal combustion engine is not operating, hydrogen can be produced and stored in a hydrogen tank or the like. Moreover, if the internal combustion engine is operated, the xenon lamp 4 can irradiate with electric power from a generator of the internal combustion engine (not shown), so that the hydrogen supply efficiency is improved.

図３は、本発明の第３実施例を示す断面模式図である。本実施例では、水タンク１の内部に酸化チタン層１３を敷設し、発生させた酸素と水素を混合させて供給することを特徴とする。また、キセノンランプ４の電力源に太陽電池１５も使用することを特徴とする。   FIG. 3 is a schematic sectional view showing a third embodiment of the present invention. In this embodiment, a titanium oxide layer 13 is laid inside the water tank 1, and the generated oxygen and hydrogen are mixed and supplied. Further, the solar battery 15 is also used as a power source for the xenon lamp 4.

水タンク１内に敷設した酸化チタン層１３は表面に間隔を開けて白金層１４を付着させている。水タンク１上部にはキセノンランプ４を配置し透明なアクリル板７を通して酸化チタン層１３に光を照射し、酸素と水素を発生させ混合気体として燃焼室へ供給する。   The titanium oxide layer 13 laid in the water tank 1 has a platinum layer 14 attached to the surface with a gap. A xenon lamp 4 is disposed in the upper part of the water tank 1 and light is irradiated to the titanium oxide layer 13 through the transparent acrylic plate 7 to generate oxygen and hydrogen, which are supplied to the combustion chamber as a mixed gas.

キセノンランプ４の電力源は、内燃機関の稼働による発電機１７からの電力と太陽電池１５の電力を併用出来る。これにより内燃機関が稼働していない状態でも太陽電池１５が機能を発揮出来る状態の時は、太陽電池１５から蓄電池１６を介してキセノンランプ４へ電力を送ることが可能になり、水素と酸素の混合気体を貯蔵タンクなどに蓄えることができる。また、蓄電池１６に電力を蓄えることもできる。   The power source of the xenon lamp 4 can use both the power from the generator 17 due to the operation of the internal combustion engine and the power of the solar cell 15. As a result, when the solar cell 15 can perform its function even when the internal combustion engine is not operating, power can be sent from the solar cell 15 to the xenon lamp 4 via the storage battery 16, and hydrogen and oxygen can be transmitted. The mixed gas can be stored in a storage tank or the like. In addition, power can be stored in the storage battery 16.

図４は、本発明の第４実施例であり、燃料供給装置からピストンエンジン２６の燃焼室までの水素供給の過程を示した説明図である。   FIG. 4 is an explanatory view showing a process of supplying hydrogen from the fuel supply device to the combustion chamber of the piston engine 26 according to the fourth embodiment of the present invention.

第１実施例又は第２実施例の水タンク１を酸化チタン電極側タンク１９と白金電極側タンク１８の二つに分けたことを特徴とする。両タンク内の電極は抵抗８でつないだ閉回路を構成しており、図示していない酸化チタン電極へ照射する光は太陽電池１５と発電機１７の電力を併用して蓄電池１６に送り、蓄電池１６からの電力によりキセノンランプ４を点灯させ、酸化チタン電極側タンク１９から酸素、白金電極側タンク１８から水素を発生させる。   The water tank 1 of the first embodiment or the second embodiment is divided into a titanium oxide electrode side tank 19 and a platinum electrode side tank 18. The electrodes in both tanks constitute a closed circuit connected by a resistor 8, and light irradiated to a titanium oxide electrode (not shown) is sent to the storage battery 16 by using the power of the solar battery 15 and the generator 17 together. The xenon lamp 4 is turned on by the electric power from 16 to generate oxygen from the titanium oxide electrode side tank 19 and hydrogen from the platinum electrode side tank 18.

白金電極側タンク１８からの水素は水素電送管２０を通り圧縮装置２１により加圧されて水素タンク２２へ送られる。水素タンク２２はピストンエンジン２６が稼働しない時でも太陽電池１５又は蓄電池１６の電力によりキセノンランプ４を点灯させ水素を蓄えることができる。また、圧縮装置２１により大気圧以上の圧力で蓄える事ができる。なお、この時の圧縮装置２１を駆動させる電力も蓄電池１６の電力を使用する。   Hydrogen from the platinum electrode side tank 18 passes through the hydrogen transmission pipe 20, is pressurized by the compression device 21, and is sent to the hydrogen tank 22. The hydrogen tank 22 can store hydrogen by turning on the xenon lamp 4 by the electric power of the solar battery 15 or the storage battery 16 even when the piston engine 26 is not operated. Further, the pressure can be stored at a pressure higher than the atmospheric pressure by the compression device 21. In addition, the electric power which drives the compression apparatus 21 at this time also uses the electric power of the storage battery 16.

水素タンク２２に蓄えられた水素はマニホールド２４によりピストンエンジン２６の気筒数に分けて水素ガスインジェクション２５より燃焼室へ噴射される。尚、酸化チタン電極側タンク１９から発生した酸素の使い方は、酸素電送管２３を通して内燃機関の吸気筒、又は空気取り入れ口に接続し吸入空気の酸素濃度を高めることもできるし、水素と混合させて燃焼効率を調節するなど任意にしてよい。   The hydrogen stored in the hydrogen tank 22 is divided into the number of cylinders of the piston engine 26 by the manifold 24 and injected from the hydrogen gas injection 25 into the combustion chamber. Note that oxygen generated from the titanium oxide electrode side tank 19 can be connected to an intake cylinder of an internal combustion engine or an air intake through an oxygen transmission pipe 23 to increase the oxygen concentration of the intake air, or mixed with hydrogen. The combustion efficiency may be adjusted arbitrarily.

本実施例では水タンクを二つにわけたが、これにより両タンクの設置場所が自由になり、特に白金電極側タンク１８と水素タンク２２を、より安全な任意の場所に装備することが可能になる。尚この際、大元の水タンクを装備して両タンクへ水を供給することもできる。また、太陽電池１５は自動車ではボンネット、屋根、トランクなど、船舶では甲板、航空機では機体の上部、又は翼など日当たりの良い任意の場所に設置してよい。また、内燃機関を動力とする発電機に装備した場合は発電機と離して任意の日当たりの良い場所に設置することができる。   In this embodiment, the water tank is divided into two, but this makes the installation place of both tanks free. In particular, the platinum electrode side tank 18 and the hydrogen tank 22 can be installed in any safer place. become. At this time, it is also possible to equip the original water tank and supply water to both tanks. Further, the solar cell 15 may be installed in a sunny place such as a bonnet, a roof, or a trunk in an automobile, a deck in a ship, an upper part of an airframe in an aircraft, or a wing. Moreover, when it equips with the generator which uses an internal combustion engine as motive power, it can install in arbitrary sunny places apart from a generator.

以上、本発明の基本的な実施例について説明したが、本発明は上記実施例に限定されるものではない。第１及び第２実施例の水タンク１を第４実施例の如く分離してもよいし、第２実施例では太陽光をグラスファイバー１０により酸化チタン電極２へ照射したが、キセノンランプ４の光をグラスファイバー１０を通して酸化チタンに照射することも出来る。また、光の当て方も水タンク１の上下方向だけでなく横方向や容器を凹ませて照射しても良い。また、実施例ではキセノンランプ４の光を水タンク１内に照射する部分には透明なアクリル板７を使用したが、この他に水タンク１自体、又は水タンク１から燃焼室への過程にある管、又は容器自体を透明な材質にすることも任意にできる。さらに、水タンク１及び前記管、又は容器の光を取り込む部分にもアクリル板７同様に酸化チタンを施して汚れを防ぐことも自由に出来る。また、光源としてはキセノンランプ４に限らず紫外線又は可視光など種々の光に反応する光触媒の種類によって他のランプや蛍光灯など他の照明器具を用いる事も自由であり、形状や光量、照度も任意でよい。   The basic embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. The water tank 1 of the first and second embodiments may be separated as in the fourth embodiment. In the second embodiment, sunlight is irradiated to the titanium oxide electrode 2 by the glass fiber 10, but the xenon lamp 4 Light can also be irradiated to the titanium oxide through the glass fiber 10. In addition, the light may be irradiated not only in the vertical direction of the water tank 1 but also in the horizontal direction or with the container recessed. Further, in the embodiment, the transparent acrylic plate 7 is used for the portion where the light of the xenon lamp 4 is irradiated into the water tank 1, but in addition to this, the water tank 1 itself or the process from the water tank 1 to the combustion chamber is used. A certain tube or the container itself can be made of a transparent material. Further, the water tank 1 and the pipe, or the portion of the container that takes in light, can be freed of titanium oxide similarly to the acrylic plate 7 to prevent contamination. In addition, the light source is not limited to the xenon lamp 4, and other lighting fixtures such as other lamps and fluorescent lamps can be used depending on the type of photocatalyst that reacts with various types of light such as ultraviolet rays or visible light. Is also optional.

また、実施例では光触媒として酸化チタン、助触媒として白金で説明したがこれらに限らず光触媒反応ができる従来からの任意の光触媒と助触媒を用いる事が出来る。また、電極とする場合や容器内又は管内に配設、敷設する場合に導電性、または半導体性を持つ物質に塗布、または接着、接合するなど自由にできる。また、光触媒、助触媒の割合及び大きさも任意にしてよく、水タンク内一面に配設したり、水タンクから燃焼室までの容器、または配管内に自由に設けることができる。形状も表面に凹凸をつけて表面積を増やすなど任意にすることができる。   In the embodiments, titanium oxide is used as the photocatalyst and platinum is used as the cocatalyst. However, the present invention is not limited thereto, and any conventional photocatalyst and cocatalyst capable of photocatalytic reaction can be used. In addition, when it is used as an electrode, or disposed or laid in a container or a tube, it can be freely applied, adhered or bonded to a substance having conductivity or semiconductivity. Further, the ratio and size of the photocatalyst and the cocatalyst may be arbitrarily set, and may be provided on the entire surface of the water tank, or freely provided in a container or a pipe from the water tank to the combustion chamber. The shape can also be arbitrarily determined, for example, by adding irregularities to the surface to increase the surface area.

また、本実施例では光分解を水で説明したが、水に限らず水を含んでいれる水溶液ならば自由に適用してよい。例えば、第４実施例の二つのタンクのそれぞれに酸性とアルカリ性の水溶液を入れることもできる。   In the present embodiment, the photodecomposition has been described with water. However, the present invention is not limited to water, and any aqueous solution containing water may be applied freely. For example, acidic and alkaline aqueous solutions can be placed in each of the two tanks of the fourth embodiment.

また、第４実施例ではピストンエンジンに装備した例を説明したが、本発明の水素供給装置はこれに限らず内燃機関であってピストンエンジン、またはロータリーエンジンを動力にする自動車を始めとする車両及び船舶から、ターボファンエンジンやターボジェットエンジン、ターボプロップエンジン、ターボシャフトエンジンなどのガスタービンエンジンを搭載する航空機などの乗り物に広く装備できる。また、内燃機関を動力とする発電機にも装備できる。   In the fourth embodiment, an example in which a piston engine is installed has been described. However, the hydrogen supply device of the present invention is not limited to this, and is an internal combustion engine, such as a vehicle that uses a piston engine or a rotary engine as a power source. In addition, it can be widely installed on a vehicle such as an aircraft equipped with a gas turbine engine such as a turbofan engine, a turbojet engine, a turboprop engine, and a turboshaft engine. It can also be installed in a generator powered by an internal combustion engine.

さらに、酸素の使い道も第４実施例に限らず、発生させた酸素の使い道として最適なのが燃料電池である。未来の動力源として開発されている燃料電池及び燃料電池自動車に装備することで、燃料電池に必要な水素に加え酸素も供給可能になる最適な装置として提供できる。   Furthermore, the usage of oxygen is not limited to the fourth embodiment, and the most suitable usage of the generated oxygen is the fuel cell. By installing the fuel cell and fuel cell vehicle that are being developed as a power source for the future, it is possible to provide an optimum device that can supply oxygen in addition to hydrogen necessary for the fuel cell.

また、水素供給装置を装備出来ない小型のエンジンなどには、実施例１から４に説明した各装置の他に外部電力を取り込む装置と装置を統括制御する制御装置を具備した水素供給装置として、単独で水素タンクへ水素を補給することもできる。なお、電源は外部電力と太陽電池の電力を併用することも出来る。また、交換可能な水素タンク、若しくは水素ボンベにも、この水素供給装置により水素を充填することもできる。この交換可能な水素タンク、若しくは水素ボンベは、小型のエンジンや農業用の小型耕耘機などに簡単に取り付けて使用出来る持ち運び自由なカセット水素タンク、またはカセット水素ボンベとする事も出来る。また、光源として太陽電池の電力、又はグラスファイバーによる太陽光を利用すれば、外部からの電力に依存することなく水素を供給出来る。   For a small engine that cannot be equipped with a hydrogen supply device, in addition to each device described in the first to fourth embodiments, as a hydrogen supply device equipped with a device that takes in external power and a control device that performs overall control of the device, It is also possible to supply hydrogen to the hydrogen tank alone. The power source can use both external power and solar battery power. In addition, a hydrogen tank or a hydrogen cylinder that can be exchanged can be filled with hydrogen by the hydrogen supply device. The replaceable hydrogen tank or hydrogen cylinder can be a portable cassette hydrogen tank or a cassette hydrogen cylinder that can be easily attached to a small engine or a small agricultural cultivator. Moreover, if the electric power of a solar cell or the sunlight by a glass fiber is utilized as a light source, hydrogen can be supplied without depending on the electric power from the outside.

本発明の水素供給装置の第１実施例を示す断面模式図である。It is a cross-sectional schematic diagram which shows 1st Example of the hydrogen supply apparatus of this invention. 本発明の水素供給装置の第２実施例を示す断面模式図である。It is a cross-sectional schematic diagram which shows 2nd Example of the hydrogen supply apparatus of this invention. 本発明の水素供給装置の第３実施例を示す断面模式図である。It is a cross-sectional schematic diagram which shows 3rd Example of the hydrogen supply apparatus of this invention. 本発明の水素供給装置の第４実施例を示す説明図である。It is explanatory drawing which shows 4th Example of the hydrogen supply apparatus of this invention.

１ 水タンク
２ 酸化チタン電極
３ 白金電極
４ キセノンランプ
５ 浮力装置
６ 仕切り板
７ アクリル板
８ 抵抗
９ 水面
１０ グラスファイバー
１１ 集光装置
１２ 光拡散装置
１３ 酸化チタン層
１４ 白金層
１５ 太陽電池
１６ 蓄電池
１７ 発電機
１８ 白金電極側タンク
１９ 酸化チタン電極側タンク
２０ 水素電送管
２１ 圧縮装置
２２ 水素タンク
２３ 酸素伝送管
２４ マニホールド
２５ 水素ガスインジェクション
２６ ピストンエンジン DESCRIPTION OF SYMBOLS 1 Water tank 2 Titanium oxide electrode 3 Platinum electrode 4 Xenon lamp 5 Buoyancy device 6 Partition plate 7 Acrylic plate 8 Resistance 9 Water surface 10 Glass fiber 11 Condensing device 12 Light diffusion device 13 Titanium oxide layer 14 Platinum layer 15 Solar cell 16 Storage battery 17 Generator 18 Platinum electrode side tank 19 Titanium oxide electrode side tank 20 Hydrogen transmission pipe 21 Compressor 22 Hydrogen tank 23 Oxygen transmission pipe 24 Manifold 25 Hydrogen gas injection 26 Piston engine

Claims (9)

容器内、又は管内の水溶液中に設けた光触媒に光りを当てて水素と酸素を発生させ、その水素、又は水素と酸素を燃料として内燃機関及び燃料電池に供給することを特徴とする内燃機関及び燃料電池用水素供給装置。   An internal combustion engine characterized in that a photocatalyst provided in an aqueous solution in a container or a tube is irradiated with light to generate hydrogen and oxygen, and the hydrogen or hydrogen and oxygen are supplied as fuel to an internal combustion engine and a fuel cell, and Hydrogen supply device for fuel cells. 光触媒と助触媒を組み合わせたことを特徴とする請求項１記載の内燃機関及び燃料電池用水素供給装置。   2. The hydrogen supply device for an internal combustion engine and a fuel cell according to claim 1, wherein a photocatalyst and a promoter are combined. 容器内の光触媒の面を水面と平行にして水面下に配置し、前記光触媒を水の増減に合わせて移動させる装置を設けたことを特徴とする請求項１，２記載の内燃機関及び燃料電池用水素供給装置。   3. An internal combustion engine and a fuel cell according to claim 1, wherein a device for disposing the photocatalyst in the container parallel to the water surface and below the surface of the water and moving the photocatalyst according to the increase or decrease of the water is provided. Hydrogen supply device. 光源からの光、または太陽光をグラスファイバーを通して光触媒に照射することを特徴とする請求項１，２，３記載の内燃機関及び燃料電池用水素供給装置。   4. The hydrogen supply device for an internal combustion engine and a fuel cell according to claim 1, wherein the photocatalyst is irradiated with light from the light source or sunlight through a glass fiber. グラスファイバーの片端、又は両端に集光装置と光拡散装置のいずれか一方、又は双方を設け、かつ両装置の表面に酸化チタンを施したことを特徴とする請求項４記載の内燃機関及び燃料電池用水素供給装置。   5. An internal combustion engine and a fuel according to claim 4, wherein one or both of a light collecting device and a light diffusing device are provided at one or both ends of the glass fiber, and titanium oxide is applied to the surfaces of both devices. Battery hydrogen supply device. 光源になる照明灯の電力として、太陽電池と発電機の電力のいずれか一方、又は双方を用いたことを特徴とする請求項１，２，３記載の内燃機関及び燃料電池用水素供給装置。   4. The hydrogen supply device for an internal combustion engine and a fuel cell according to claim 1, 2, or 3, wherein one or both of a solar cell and a generator is used as the power of an illumination lamp as a light source. 発生させた水素、又は水素と酸素の混合気体を少なくとも１気圧以上の圧力で容器に保存することを特徴とする請求項１，２，３，４，５，６記載の内燃機関及び燃料電池用水素供給装置。   The generated hydrogen or a mixed gas of hydrogen and oxygen is stored in a container at a pressure of at least 1 atm or more, for an internal combustion engine and a fuel cell according to claim 1, 2, 3, 4, 5, 6. Hydrogen supply device. 容器外の光源から容器内に光りを照射する部分、又は容器及び管自体に透明な材質を用い、かつ前容器内に光りを照射する部分、又は前容器及び管に酸化チタンを施した事たを特徴とする請求項１，２，３，４，５記載の内燃機関及び燃料電池用水素供給装置。   A part that radiates light into the container from a light source outside the container, or a transparent material for the container and the tube itself, and a part that radiates light into the front container, or titanium oxide applied to the front container and the tube 6. The hydrogen supply device for an internal combustion engine and a fuel cell according to claim 1, 2, 3, 4, and 5. 請求項１乃至請求項８の何れか１項、又は何れか２項以上に記載の装置と外部からの電力を取り入れる装置と各装置を制御する制御装置と蓄電装置と発生させた水素、酸素を容器へ充填、又は外部へ供給する装置を具備したことを特徴とする内燃機関及び燃料電池用水素供給装置。
9. The device according to any one of claims 1 to 8, or any one of two or more, a device that takes in electric power from outside, a control device that controls each device, a power storage device, and generated hydrogen and oxygen. A hydrogen supply device for an internal combustion engine and a fuel cell, comprising a device for filling a container or supplying it to the outside.
JP2009260542A 2009-11-15 2009-11-15 Hydrogen supply apparatus for internal combustion engine and fuel cell Pending JP2011105534A (en)

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