JP4564002B2 - 始動中に燃料噴射装置から燃料をパージするためのシステム及び方法 - Google Patents
始動中に燃料噴射装置から燃料をパージするためのシステム及び方法 Download PDFInfo
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- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
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- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
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- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
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- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
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- F02D2200/00—Input parameters for engine control
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- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
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- F02D2200/00—Input parameters for engine control
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- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
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- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
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Description
(a)エンジン暖機の程度を示す値を測定するステップと、
(b)前記少なくとも1つの燃料噴射装置の前記熱源に供給される電力を所定の目標温度を達成するように制御するステップであって、前記所定の目標温度は、液体燃料の一部を蒸気状態に変換するように、操作可能であるようなステップと、
(c)前記ステップ(b)と同時に、前記少なくとも1つの吸気弁が実質的に閉位置にある間に、初期の燃料パルスを前記少なくとも1つの燃料噴射装置から噴射するステップとを含むことを特徴とする方法を、対象としている。
(a)エンジン空気流量を決定するステップと、
(b)エンジン暖機の程度を示す値を測定するステップと、
(c)前記少なくとも1つの毛細管流路によって蒸気状態に変換されるべき液体燃料の分量を、前記ステップ(a)〜(b)によって決定または測定された前記値を用いて決定するステップと、
(d)前記少なくとも1つの燃料噴射装置の前記熱源に供給される電力を所定の目標温度を達成するように制御するステップであって、前記所定の目標温度は、前記ステップ(c)において決定された液体燃料の前記分量を前記蒸気状態に変換させるように、操作可能であるようなステップと、
(e)前記ステップ(d)と同時に、前記少なくとも1つの吸気弁が実質的に閉位置にある間に、初期の燃料パルスを前記少なくとも1つの燃料噴射装置から噴射するステップと、
(f)前記熱源が前記所定の目標温度を達成したとき、前記燃料を前記内燃機関の燃焼室に供給するステップと
を含み、
前記蒸気状態に変換されるべき液体燃料の前記分量は、排気物質が最少となるように決定されることを特徴とする方法を、対象としている。
(a)複数の燃料噴射装置であって、各々が(i)入口端と出口端とを有する少なくとも1つの毛細管流路と、(ii)前記少なくとも1つの毛細管流路に沿って配置される熱源であって、前記少なくとも1つの毛細管流路内の液体燃料の少なくとも一部を液体状態から蒸気状態に変換させるのに十分なレベルに加熱するように操作可能な熱源と、(iii)所定量の燃料を前記内燃機関に供給する弁であって、前記少なくとも1つの毛細管流路の前記出口端に近接して配置される弁とを備えた複数の燃料噴射装置と、
(b)前記複数の燃料噴射装置の各々の前記熱源に供給される電力を所定の目標温度を達成するように制御する制御装置であって、前記所定の目標温度は、液体燃料の一部を蒸気状態に変換するように操作可能である制御装置と
を備え、
(c)前記制御装置は、前記所定の目標温度に達する前に、前記吸気弁が実質的に閉位置にある間に、初期の燃料パルスを前記少なくとも1つの燃料噴射装置から噴射するように操作可能であることを特徴とする燃料システムを、対象としている。
Claims (9)
- 燃料システムを制御し、燃料を内燃機関に供給するための方法であって、前記燃料システムは、複数の燃料噴射装置を備え、前記複数の燃料噴射装置の各々が、少なくとも1つの毛細管流路と、前記少なくとも1つの毛細管流路に沿って配置される熱源と、前記各燃料噴射装置から前記内燃機関の燃焼室に至る通路を選択的に開閉するための少なくとも1つの吸気弁とを備え、前記熱源は、前記少なくとも1つの毛細管流路内の液体燃料の少なくとも一部を液体状態から蒸気状態に変換させるのに十分なレベルに加熱することができるような方法において、
(a)エンジン空気流量を決定するステップと、
(b)エンジン暖機の程度を示す値を測定するステップと、
(c)前記少なくとも1つの毛細管流路によって蒸気状態に変換されるべき液体燃料の分量を、前記ステップ(a)〜(b)によって決定または測定された前記値を用いて決定するステップと、
(d)前記少なくとも1つの燃料噴射装置の前記熱源に供給される電力を所定の目標温度を達成するように制御するステップであって、前記所定の目標温度は、前記ステップ(c)において決定された液体燃料の前記分量を前記蒸気状態に変換させるように、操作可能であるようなステップと、
(e)前記ステップ(d)と同時に、前記少なくとも1つの吸気弁が実質的に閉位置にある間に、初期の燃料パルスを前記少なくとも1つの燃料噴射装置から噴射するステップと、
(f)前記熱源が前記所定の目標温度を達成したとき、前記燃料を前記内燃機関の燃焼室に供給するステップと
を含み、
前記蒸気状態に変換されるべき液体燃料の前記分量は、排気物質が最少となるように決定される
ことを特徴とする方法。 - エンジン空気流量を決定する前記ステップ(a)は、(i)エンジン速度を測定するステップと、(ii)前記内燃機関の吸気マニフォールド圧力を測定するステップとをさらに含むことを特徴とする請求項1に記載の方法。
- 前記少なくとも1つの燃料噴射装置の前記熱源に供給される電力を制御する前記ステップ(d)は、抵抗値を設定するステップを含み、前記抵抗値は、前記所定の目標温度と関係付けられることを特徴とする先行する請求項のいずれか一項に記載の方法。
- 前記内燃機関の前記燃焼室への蒸発された燃料の供給は、前記内燃機関の運転の始動及び暖機期間に制限されることを特徴とする先行する請求項のいずれか一項に記載の方法。
- 前記内燃機関が十分な暖機状態にあるとき、液体燃料を前記内燃機関の前記燃焼室に供給するステップをさらに含むことを特徴とする先行する請求項のいずれか一項に記載の方法。
- 内燃機関に用いられる燃料システムにおいて、
(a)複数の燃料噴射装置であって、各々が(i)入口端と出口端とを有する少なくとも1つの毛細管流路と、(ii)前記少なくとも1つの毛細管流路に沿って配置される熱源であって、前記少なくとも1つの毛細管流路内の液体燃料の少なくとも一部を液体状態から蒸気状態に変換させるのに十分なレベルに加熱するように操作可能な熱源と、(iii)所定量の燃料を前記内燃機関に供給する吸気弁であって、前記少なくとも1つの毛細管流路の前記出口端に近接して配置される吸気弁とを備えた複数の燃料噴射装置と、
(b)前記複数の燃料噴射装置の各々の前記熱源に供給される電力を所定の目標温度を達成するように制御する制御装置であって、前記所定の目標温度は、液体燃料の一部を蒸気状態に変換するように操作可能である制御装置と
を備え、
(c)前記制御装置は、前記所定の目標温度に達する前に、前記吸気弁が実質的に閉位置にある間に、初期の燃料パルスを前記少なくとも1つの燃料噴射装置から噴射するように操作可能に構成されていることを特徴とする燃料システム。 - 前記初期の燃料パルスが噴射されるとき、前記吸気弁は、完全な閉位置にあるように構成されていることを特徴とする請求項6に記載の燃料システム。
- 前記制御装置は、前記初期の燃料パルスの後、前記熱源が前記所定の温度を達成したとき、通常の燃料噴射タイミングに戻るよう操作可能に構成されていることを特徴とする請求項6または7に記載の燃料システム。
- 前記初期の燃料パルスが、前記少なくとも1つの吸気弁の背面に対して噴射されるように構成されていることを特徴とする請求項6〜8のいずれか一項に記載の燃料システム。
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US10/410,976 US6913005B2 (en) | 2002-03-22 | 2003-04-10 | System and methodology for purging fuel from a fuel injector during start-up |
PCT/US2004/011345 WO2004092570A2 (en) | 2003-04-10 | 2004-04-09 | System and method for purging fuel from a fuel injector during start-up |
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JP4564002B2 true JP4564002B2 (ja) | 2010-10-20 |
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EP (1) | EP1611341A2 (ja) |
JP (1) | JP4564002B2 (ja) |
KR (1) | KR101088593B1 (ja) |
CN (1) | CN100436806C (ja) |
AU (1) | AU2004230521B2 (ja) |
BR (1) | BRPI0409274A (ja) |
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2003
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- 2004-04-09 AU AU2004230521A patent/AU2004230521B2/en not_active Ceased
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CA2522342A1 (en) | 2004-10-28 |
WO2004092570A3 (en) | 2004-12-16 |
AU2004230521A1 (en) | 2004-10-28 |
CA2522342C (en) | 2012-06-05 |
CN1798919A (zh) | 2006-07-05 |
US20040000296A1 (en) | 2004-01-01 |
US6913005B2 (en) | 2005-07-05 |
KR20060006029A (ko) | 2006-01-18 |
EP1611341A2 (en) | 2006-01-04 |
BRPI0409274A (pt) | 2006-04-11 |
JP2006522898A (ja) | 2006-10-05 |
AU2004230521B2 (en) | 2009-11-19 |
KR101088593B1 (ko) | 2011-12-06 |
WO2004092570A2 (en) | 2004-10-28 |
CN100436806C (zh) | 2008-11-26 |
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