JP4591555B2 - 燃料噴射ノズルおよびそれを用いた燃料噴射制御装置 - Google Patents
燃料噴射ノズルおよびそれを用いた燃料噴射制御装置 Download PDFInfo
- Publication number
- JP4591555B2 JP4591555B2 JP2008153955A JP2008153955A JP4591555B2 JP 4591555 B2 JP4591555 B2 JP 4591555B2 JP 2008153955 A JP2008153955 A JP 2008153955A JP 2008153955 A JP2008153955 A JP 2008153955A JP 4591555 B2 JP4591555 B2 JP 4591555B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- inner needle
- needle
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
- F02M45/086—Having more than one injection-valve controlling discharge orifices
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
- F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
本発明の第1実施形態について説明する。図1は第1実施形態に係る燃料噴射ノズルを用いた燃料噴射制御装置を示す模式的な断面図、図2および図3は図1の燃料噴射弁の燃料噴射方向を示す模式的な断面図である。なお、図2はピストンが上死点から離れた位置にあるときの作動状態を示し、図3はピストンが上死点に近い位置にあるときの作動状態を示している。
本発明の第2実施形態について説明する。図6は第2実施形態に係る燃料噴射ノズルを用いた燃料噴射制御装置を示す模式的な断面図である。
17 サック
111 アウターニードル
112 インナーニードル
113 ノズルボディ
171 サック先端部空間
1132 噴孔
Claims (5)
- 噴孔(1132)が形成されたノズルボディ(113)と、
前記ノズルボディ(113)と接離して前記噴孔(1132)を開閉する筒状のアウターニードル(111)と、
前記アウターニードル(111)内に摺動自在に挿入されたインナーニードル(112)とを備え、
前記アウターニードル(111)と前記ノズルボディ(113)とが当接するシート部(16)の下流側に前記ニードル(111、112)と前記ノズルボディ(113)とによって形成される空間をサック(17)とし、
このサック(17)のうち前記噴孔(1132)が開口した部位よりも下流側で、且つ前記インナーニードルの先端部(1121)が出入りする部位をサック先端部空間(171)としたとき、
前記アウターニードル(111)がリフトした状態で、且つ前記インナーニードルがリフトしていない状態では、燃料が前記シート部(16)側から前記サック先端部空間(171)を経由せずに直接前記噴孔(1132)に向って流れることにより、前記噴孔(1132)内での燃料の流速が前記シート部(16)に近い側よりも遠い側の方が高くなるように構成され、
前記アウターニードル(111)がリフトした状態で、且つ前記インナーニードルもリフトした状態では、前記アウターニードル(111)および前記インナーニードルの外周面に沿った燃料の流れが前記サック先端部空間(171)を経由して前記噴孔(1132)に向って流れることにより、前記噴孔(1132)内での燃料の流速が前記シート部(16)に近い側よりも遠い側の方が低くなるように構成されていることを特徴とする燃料噴射ノズル。 - 請求項1に記載の燃料噴射ノズル(11)と、
前記アウターニードル(111)を駆動する第1駆動部(12)と、
前記インナーニードル(112)を駆動する第2駆動部(13)と、
前記第1駆動部(12)および前記第2駆動部(13)の作動を制御する制御手段(5)とを備えることを特徴とする燃料噴射制御装置。 - 前記第2駆動部(13)は、前記インナーニードル(112)のリフト量を連続的に制御可能に構成されていることを特徴とする請求項2に記載の燃料噴射制御装置。
- 前記第2駆動部(13)は、磁気吸引力によって前記インナーニードル(112)を駆動するソレノイドであることを特徴とする請求項3に記載の燃料噴射制御装置。
- ピストン(92)が往復動する内燃機関(9)に搭載される燃料噴射制御装置であって、
前記制御手段(5)は、前記ピストン(92)が上死点に近い位置にあるほど前記インナーニードル(112)のリフト量が大きくなるように前記第2駆動部(13)を制御することを特徴とする請求項3または4に記載の燃料噴射制御装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008153955A JP4591555B2 (ja) | 2008-06-12 | 2008-06-12 | 燃料噴射ノズルおよびそれを用いた燃料噴射制御装置 |
CN2009801216532A CN102066739A (zh) | 2008-06-12 | 2009-06-08 | 燃料喷射喷嘴和燃料喷射阀及采用其的燃料喷射控制*** |
EP09762042A EP2324229A1 (en) | 2008-06-12 | 2009-06-08 | Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same |
US12/996,645 US20110162623A1 (en) | 2008-06-12 | 2009-06-08 | Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same |
PCT/IB2009/005882 WO2009150512A1 (en) | 2008-06-12 | 2009-06-08 | Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008153955A JP4591555B2 (ja) | 2008-06-12 | 2008-06-12 | 燃料噴射ノズルおよびそれを用いた燃料噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009299551A JP2009299551A (ja) | 2009-12-24 |
JP4591555B2 true JP4591555B2 (ja) | 2010-12-01 |
Family
ID=41060010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008153955A Expired - Fee Related JP4591555B2 (ja) | 2008-06-12 | 2008-06-12 | 燃料噴射ノズルおよびそれを用いた燃料噴射制御装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110162623A1 (ja) |
EP (1) | EP2324229A1 (ja) |
JP (1) | JP4591555B2 (ja) |
CN (1) | CN102066739A (ja) |
WO (1) | WO2009150512A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010023698A1 (de) * | 2010-06-14 | 2011-12-15 | Continental Automotive Gmbh | Einspritzventil mit Direkt- und Servoantrieb |
DE102010040309A1 (de) * | 2010-09-07 | 2012-03-08 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP2826754A4 (en) * | 2012-03-16 | 2015-12-30 | Jx Nippon Oil & Energy Corp | METHOD OF PRODUCTION AND MANUFACTURING DEVICE FOR OPTICAL SUBSTRATE WITH CONCAVE-KONVEX PATTERN BASED ON A FILM-FORM AND PRODUCTION PROCESS FOR A DEVICE COMPRISING AN OPTICAL SUBSTRATE |
DE102014215450B4 (de) * | 2014-08-05 | 2016-03-31 | Engineering Center Steyr Gmbh & Co. Kg | Fluid-Einspritzvorrichtung |
JP6319235B2 (ja) * | 2015-09-02 | 2018-05-09 | 株式会社デンソー | 燃料噴射装置 |
US11035332B2 (en) * | 2017-12-19 | 2021-06-15 | Caterpillar Inc. | Fuel injector having dual solenoid control valves |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002115629A (ja) * | 2000-10-12 | 2002-04-19 | Nissan Motor Co Ltd | 内燃機関の燃料噴射制御装置 |
JP2002276509A (ja) * | 2001-03-15 | 2002-09-25 | Denso Corp | 燃料噴射ノズル |
JP2003214296A (ja) * | 2003-02-05 | 2003-07-30 | Hitachi Ltd | 燃料噴射弁 |
WO2005001255A1 (de) * | 2003-06-30 | 2005-01-06 | Daimlerchrysler Ag | Selbstzündende brennkraftmaschine |
JP2005023846A (ja) * | 2003-07-02 | 2005-01-27 | Toyota Motor Corp | 燃料噴射弁 |
JP2007263042A (ja) * | 2006-03-29 | 2007-10-11 | Toyota Motor Corp | 可変圧縮比内燃機関 |
JP2008038715A (ja) * | 2006-08-04 | 2008-02-21 | Toyota Motor Corp | 燃料噴射ノズル |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3236046C2 (de) * | 1982-09-29 | 1986-03-20 | Daimler-Benz Ag, 7000 Stuttgart | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
US5947389A (en) * | 1996-06-06 | 1999-09-07 | Zexel Corporation | Variable nozzle hole type fuel injection nozzle |
US6637675B2 (en) * | 2001-07-13 | 2003-10-28 | Cummins Inc. | Rate shaping fuel injector with limited throttling |
JP4103583B2 (ja) * | 2002-12-26 | 2008-06-18 | トヨタ自動車株式会社 | ノズル及び燃料インジェクタ及び内燃機関 |
DE10348925A1 (de) * | 2003-10-18 | 2005-05-12 | Bosch Gmbh Robert | Kraftstoffinjektor mit mehrteiligem, direktgesteuertem Einspritzventilglied |
DE102004030447A1 (de) * | 2004-06-24 | 2006-01-12 | Robert Bosch Gmbh | Kraftstoffeinspritzvorrichtung |
ATE406515T1 (de) * | 2005-05-03 | 2008-09-15 | Delphi Tech Inc | Vorrichtung für ein kraftstoffeinspritzventil mit schaltbaren betriebsarten |
-
2008
- 2008-06-12 JP JP2008153955A patent/JP4591555B2/ja not_active Expired - Fee Related
-
2009
- 2009-06-08 US US12/996,645 patent/US20110162623A1/en not_active Abandoned
- 2009-06-08 WO PCT/IB2009/005882 patent/WO2009150512A1/en active Application Filing
- 2009-06-08 EP EP09762042A patent/EP2324229A1/en not_active Withdrawn
- 2009-06-08 CN CN2009801216532A patent/CN102066739A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002115629A (ja) * | 2000-10-12 | 2002-04-19 | Nissan Motor Co Ltd | 内燃機関の燃料噴射制御装置 |
JP2002276509A (ja) * | 2001-03-15 | 2002-09-25 | Denso Corp | 燃料噴射ノズル |
JP2003214296A (ja) * | 2003-02-05 | 2003-07-30 | Hitachi Ltd | 燃料噴射弁 |
WO2005001255A1 (de) * | 2003-06-30 | 2005-01-06 | Daimlerchrysler Ag | Selbstzündende brennkraftmaschine |
JP2005023846A (ja) * | 2003-07-02 | 2005-01-27 | Toyota Motor Corp | 燃料噴射弁 |
JP2007263042A (ja) * | 2006-03-29 | 2007-10-11 | Toyota Motor Corp | 可変圧縮比内燃機関 |
JP2008038715A (ja) * | 2006-08-04 | 2008-02-21 | Toyota Motor Corp | 燃料噴射ノズル |
Also Published As
Publication number | Publication date |
---|---|
US20110162623A1 (en) | 2011-07-07 |
CN102066739A (zh) | 2011-05-18 |
EP2324229A1 (en) | 2011-05-25 |
WO2009150512A1 (en) | 2009-12-17 |
JP2009299551A (ja) | 2009-12-24 |
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