JPWO2006011409A1 - 燃料供給システム - Google Patents
燃料供給システム Download PDFInfo
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- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
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- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
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- C01B2203/08—Methods of heating or cooling
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Abstract
Description
水蒸気改質反応:CH4+H2O→3H2+CO
従来、上記の燃料を用いて水素含有ガスを製造するには、まず燃料と水とを所定の割合で混合し、その後、この燃料と水との混合物を気化させ、この気体を改質触媒を備える改質器に供給して水素含有ガスを製造する方法が一般的に用いられる。ただこのような改質触媒による従来の方法では、700〜900℃といった高温で上記反応を進行させる必要がある。このため、得られる水素含有ガス中の一酸化炭素濃度が、平衡により高くなってしまうことがあった。その結果、改質器の後段に設置される、一酸化炭素を除去するためのシフト反応器が大型化するという問題があった。また、改質触媒を所定の温度に加熱する必要があり、装置の起動性や応答性に劣るという問題があった。また高価な改質触媒を使用するため、コストが高くなるという問題もあった。
図7では、本発明の燃料改質装置4の好ましい一実施の形態を示す。燃料改質装置4は、原燃料(液体燃料)を放電プラズマにより改質し、改質燃料(水素含有ガス)を生成させる装置である。なお、図7は、燃料改質装置4の定常運転状態を示す図であり、反応容器40の内部には、液体燃料64が充填されている。
図7に示す形態の燃料改質装置4を用いて液相でイソオクタンを改質し、水素含有ガスを生成させた。
図8に示す形態の燃料改質装置4を用いて液相でイソオクタンを改質し、水素含有ガスを生成させた。
図9に示す形態の燃料改質装置を用いて気相でイソオクタンを改質し、水素含有ガスを生成させた。
図10に示す形態の燃料改質装置を用いて液相でイソオクタンを改質し、水素含有ガスを生成させた。
本発明の燃料供給システムにおける触媒反応器12は、エンジンからの排熱及び改質触媒を利用し、原燃料を改質燃料に変換する装置である。
Claims (18)
- 液体の原燃料内で放電を行い、改質ガス含有燃料を生成する燃料改質装置と、
前記改質ガス含有燃料又は前記改質ガス含有燃料と前記原燃料との混合物をエンジンの燃焼室に供給する燃料供給装置と、
を有することを特徴とする燃料供給システム。 - 前記燃料供給システムは、燃料タンクを有し、
前記燃料改質装置は、前記燃料タンク内に設けられることを特徴とする請求項1に記載の燃料供給システム。 - 前記原燃料を貯蔵する燃料タンクと、
前記燃料改質装置が備えられ、前記燃料タンクから前記燃料改質装置に前記原燃料を供給し、さらに前記燃料改質装置から前記燃料供給装置に前記改質ガス含有燃料を供給する第1燃料供給路と、
前記燃料タンクから前記燃料供給装置に直接原燃料を供給する第2燃料供給路と、
前記エンジンの出力状態に応じて、前記第1燃料供給路からの前記改質ガス含有燃料の供給量及び前記第2燃料供給路からの前記原燃料の供給量を変化させる供給制御装置と、
を有することを特徴とする請求項1に記載の燃料供給システム。 - 前記原燃料を貯蔵する燃料タンクと、
前記燃料改質装置が備えられ、前記燃料タンクから前記燃料改質装置に前記原燃料を供給し、さらに前記燃料改質装置から前記燃料供給装置に前記改質ガス含有燃料を供給する第1燃料供給路と、
前記エンジンからの排熱を利用し、前記原燃料を改質して改質燃料を生成する触媒反応器を備え、前記燃料タンクから前記触媒反応器に前記原燃料を供給し、さらに前記触媒反応器から前記燃料供給装置に前記改質燃料を供給する第3燃料供給路と、
前記エンジンの出力状態に応じて、前記第1燃料供給路からの前記改質ガス含有燃料の供給量及び前記第3燃料供給路からの前記改質燃料の供給量を変化させる選択制御装置と、
を有することを特徴とする請求項1に記載の燃料供給システム。 - 前記選択制御装置は、前記エンジンからの排気ガスの温度に基づき、前記改質ガス含有燃料の供給量及び前記改質燃料の供給量を変化させることを特徴とする請求項4に記載の燃料供給システム。
- 前記燃料改質装置と前記燃料供給装置との間に設けられ、前記改質ガス含有燃料を貯蔵する改質燃料貯蔵部を有することを特徴とする請求項1に記載の燃料供給システム。
- 前記エンジンの出力状態に応じて、前記燃料改質装置の放電電圧を制御する放電制御装置を有することを特徴とする請求項1に記載の燃料供給システム。
- 前記燃料改質装置は、
反応容器と、
前記放電制御装置に電気的に接続され、前記反応容器に内蔵された第1の電極と、
前記第1の電極に対向するように前記反応容器に内蔵された、前記第1の電極との間での放電によりプラズマを発生させるための第2の電極と、
前記原燃料と前記プラズマとの接触により生成した改質ガスを前記反応容器から排出させるための排出部と、
を有し、
前記第1の電極の、前記反応容器の内部に位置する表面が、絶縁性材料により被覆された被覆部と、絶縁性材料により被覆されない露出部とを有することを特徴とする請求項10に記載の燃料供給システム。 - 前記被覆部と前記露出部との合計面積に対する、前記露出部の面積の割合が1〜20%であることを特徴とする請求項10に記載の燃料供給システム。
- 前記露出部が、前記第1の電極の、前記第2の電極に対向する面のみに存在することを特徴とする請求項10に記載の燃料供給システム。
- 前記露出部の面積が0.5〜10mm2であることを特徴とする請求項10に記載の燃料供給システム。
- 前記放電が、5〜500回/秒のパルス数のパルス放電であることを特徴とする請求項10に記載の燃料供給システム。
- 前記触媒反応器は、改質触媒を備え、
前記改質触媒は、貴金属若しくは遷移金属を多孔質材料に固定化してなることを特徴とする請求項4に記載の燃料供給システム。 - 前記触媒反応器は、前記排気ガスが流通する高温部と、前記改質触媒が設けられた低温部からなることを特徴とする請求項13に記載の燃料供給システム。
- 前記触媒反応器は、加熱部を有していることを特徴とする請求項14に記載の燃料供給システム。
- 前記加熱部は、プレートフィン型熱交換器であることを特徴とする請求項15に記載の燃料供給システム。
- 前記原燃料が炭化水素であり、前記改質ガス含有燃料が水素含有ガスであることを特徴とする請求項1に記載の燃料供給システム。
- 前記原燃料がアルコールと水との混合物であり、前記改質ガス含有燃料が水素含有ガスであることを特徴とする請求項1に記載の燃料供給システム。
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004219466 | 2004-07-28 | ||
| JP2004219466 | 2004-07-28 | ||
| JP2005044289 | 2005-02-21 | ||
| JP2005044289 | 2005-02-21 | ||
| PCT/JP2005/013373 WO2006011409A1 (ja) | 2004-07-28 | 2005-07-21 | 燃料供給システム |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2006011409A1 true JPWO2006011409A1 (ja) | 2008-05-01 |
| JP4513809B2 JP4513809B2 (ja) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006529270A Expired - Fee Related JP4513809B2 (ja) | 2004-07-28 | 2005-07-21 | 燃料供給システム |
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| Country | Link |
|---|---|
| US (1) | US7703445B2 (ja) |
| EP (1) | EP1803922A4 (ja) |
| JP (1) | JP4513809B2 (ja) |
| WO (1) | WO2006011409A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4901816B2 (ja) * | 2008-06-30 | 2012-03-21 | 株式会社日立製作所 | 改質器付エンジンシステム |
| US20080131360A1 (en) * | 2006-10-20 | 2008-06-05 | Charles Terrel Adams | Methods and systems of producing molecular hydrogen using a plasma system at various pressures |
| US8220440B2 (en) * | 2006-10-20 | 2012-07-17 | Tetros Innovations, Llc | Methods and systems for producing fuel for an internal combustion engine using a low-temperature plasma system |
| JP2008298045A (ja) * | 2007-06-04 | 2008-12-11 | Nissan Motor Co Ltd | 内燃機関システム |
| JP2009059576A (ja) * | 2007-08-31 | 2009-03-19 | Toshiba Corp | 燃料電池用燃料供給システム |
| JP4274279B2 (ja) * | 2007-11-02 | 2009-06-03 | トヨタ自動車株式会社 | 内燃機関 |
| JP4990110B2 (ja) * | 2007-11-30 | 2012-08-01 | 株式会社日立製作所 | エンジンシステム |
| JP2009138570A (ja) * | 2007-12-04 | 2009-06-25 | Toyota Motor Corp | 燃料改質装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4513809B2 (ja) | 2010-07-28 |
| WO2006011409A1 (ja) | 2006-02-02 |
| US7703445B2 (en) | 2010-04-27 |
| EP1803922A4 (en) | 2010-10-06 |
| US20080141984A1 (en) | 2008-06-19 |
| EP1803922A1 (en) | 2007-07-04 |
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