JP2008531901A - 能動的ニードル閉鎖手段を有する共通レール型噴射装置 - Google Patents
能動的ニードル閉鎖手段を有する共通レール型噴射装置 Download PDFInfo
- Publication number
- JP2008531901A JP2008531901A JP2007556239A JP2007556239A JP2008531901A JP 2008531901 A JP2008531901 A JP 2008531901A JP 2007556239 A JP2007556239 A JP 2007556239A JP 2007556239 A JP2007556239 A JP 2007556239A JP 2008531901 A JP2008531901 A JP 2008531901A
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- metering
- assembly
- cavity
- fuel
- 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.)
- Granted
Links
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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
- 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
- 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
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/006—Springs assisting hydraulic closing force
-
- 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
- F02M61/04—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
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims (15)
- 燃料噴射組立体であって、
入口及び出口を含む腔を画定するハウジングと;
燃料が出口を通って流動することを可能にする開位置と、燃料が出口を通って流動するのを阻止する閉位置との間を移動可能であり、上部及び下部を含むニードル弁と;
ニードル弁が開位置に向かって液圧偏倚させられるようにニードル弁の上部に作用する圧力をニードル弁の下部に作用する圧力よりも選択的に低くすることによってニードル弁の移動を制御する弁と;
選択的に計量腔とオーバーラップすることによって、上面と下面との間に所要の圧力差を発生させ、この圧力差によってニードル弁を閉位置に向かって偏倚させる液体偏倚を発生させる流路を画定する計量ランドから成る燃料噴射組立体。 - ニードル弁を閉位置に向かって偏倚させる偏倚部材を含む請求項1に記載の組立体。
- 計量ランドをニードル弁の下部に配置される請求項1に記載の組立体。
- ニードル弁の下部に配置され、計量ランドを画定する計量スリーブを含む請求項1に記載の組立体。
- 計量スリーブが偏倚部材の一方の側を支持する請求項4に記載の組立体。
- 計量スリーブが計量スリーブを計量腔と環状に整合させるためのガイドを含む請求項4に記載の組立体。
- ニードル弁が計量ランドと計量腔との間のオーバーラップ間隔よりも大きい閉位置と開位置との間の軸方向距離に亘って移動する請求項1に記載の組立体。
- 燃料噴射組立体であって、
入口及び出口を含む腔を画定するハウジングと;
燃料が出口を通って流動することを可能にする開位置と、燃料が出口を通って流動するのを阻止する閉位置との間を移動可能であり、上部及び下部を含むニードル弁と;
ニードル弁の上部とニードル弁の下部との間の圧力差を選択的に制御することによってニードル弁の移動を制御する弁と;
ニードル弁の上方に配置され、計量腔と選択的にオーバーラップすることによって、上面と下面との間に所要の圧力差を発生させ、この圧力差によってニードル弁を閉位置に向かって偏倚させる液体偏倚を発生させる流路を画定する計量ランドを画定するスリーブを含む燃料噴射組立体。 - 上部が下部よりも小さい直径を有する請求項8に記載の組立体。
- スリーブを計量腔によって画定される計量エッジと整列させるため、軽量スリーブの下方に配置されたスペーサを含む請求項9に記載の組立体。
- スペーサが、軽量ランドと軽量腔とが所要の間隔でオーバーラップできるように調整された厚さを含む請求項10に記載の組立体。
- スリーブがスリーブを軽量腔と周方向に整合させるガイドを含む請求項9に記載の組立体。
- ニードル弁を閉位置に向かって偏倚させる偏倚部材を含む請求項9に記載の組立体。
- スリーブ上に支持されて偏倚部材の一端を支持するスペーサを含む請求項13に記載の組立体。
- 弁が圧電弁である請求項8に記載の組立体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65530105P | 2005-02-22 | 2005-02-22 | |
PCT/US2006/005135 WO2006091429A1 (en) | 2005-02-22 | 2006-02-14 | Common rail injector with active needle closing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008531901A true JP2008531901A (ja) | 2008-08-14 |
JP4608555B2 JP4608555B2 (ja) | 2011-01-12 |
Family
ID=36337596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007556239A Expired - Fee Related JP4608555B2 (ja) | 2005-02-22 | 2006-02-14 | 燃料噴射組立体 |
Country Status (4)
Country | Link |
---|---|
US (2) | US7188788B2 (ja) |
EP (1) | EP1851427B1 (ja) |
JP (1) | JP4608555B2 (ja) |
WO (1) | WO2006091429A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015108335A (ja) * | 2013-12-04 | 2015-06-11 | 株式会社日本自動車部品総合研究所 | 燃料噴射ノズル |
JP2020045791A (ja) * | 2018-09-18 | 2020-03-26 | 株式会社Soken | 燃料噴射弁 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1811166B1 (en) * | 2006-01-24 | 2008-11-05 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
DE102006048979B8 (de) * | 2006-10-17 | 2017-02-23 | Continental Automotive Gmbh | Verfahren und Einspritzsystem zum Einspritzen eines Fluids |
GB0801997D0 (en) | 2007-05-01 | 2008-03-12 | Delphi Tech Inc | Fuel injector |
DE102007021330A1 (de) * | 2007-05-07 | 2008-11-13 | Robert Bosch Gmbh | Kraftstoffinjektor für eine Brennkraftmaschine mit Common-Rail-Einspritzsystem |
US7690588B2 (en) * | 2007-07-31 | 2010-04-06 | Caterpillar Inc. | Fuel injector nozzle with flow restricting device |
DE102008001907A1 (de) * | 2008-05-21 | 2009-11-26 | Robert Bosch Gmbh | Kraftstoff-Injektor |
US7950596B2 (en) * | 2008-06-27 | 2011-05-31 | Caterpillar Inc. | Distributed stiffness biasing spring for actuator system and fuel injector using same |
DE102009000206A1 (de) * | 2009-01-14 | 2010-07-15 | Robert Bosch Gmbh | Kraftstoffinjektor für Brennkraftmaschinen |
US7942349B1 (en) * | 2009-03-24 | 2011-05-17 | Meyer Andrew E | Fuel injector |
DE102009046452A1 (de) * | 2009-11-06 | 2011-05-12 | Robert Bosch Gmbh | Einspritzdüse für einen lecklosen Kraftstoffinjektor |
DE102009055135A1 (de) * | 2009-12-22 | 2011-06-30 | Robert Bosch GmbH, 70469 | Leckagefreier Kraftstoffinjektor |
WO2012158153A1 (en) * | 2011-05-13 | 2012-11-22 | Meyer Andrew E | Fuel injector |
EP2568157A1 (en) * | 2011-09-08 | 2013-03-13 | Delphi Technologies Holding S.à.r.l. | Injection Nozzle |
EP2722518A1 (en) * | 2012-10-22 | 2014-04-23 | Delphi International Operations Luxembourg S.à r.l. | Fuel Injection nozzle having a flow restricting element |
DE102012222633A1 (de) * | 2012-12-10 | 2014-06-12 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE102013219568A1 (de) * | 2013-09-27 | 2015-04-02 | Robert Bosch Gmbh | Kraftstoffeinspritzventil und ein Verfahren zu dessen Herstellung |
US9267476B2 (en) * | 2014-01-21 | 2016-02-23 | Cummins Inc. | Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control |
US9822748B2 (en) | 2014-05-31 | 2017-11-21 | Cummins Inc. | Restrictive flow passage in common rail injectors |
GB201421885D0 (en) | 2014-12-09 | 2015-01-21 | Delphi International Operations Luxembourg S.�.R.L. | Fuel injector |
CN114135430B (zh) * | 2021-12-08 | 2023-01-06 | 一汽解放汽车有限公司 | 一种燃料喷射阀 |
Citations (6)
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EP0451408A1 (en) * | 1990-04-12 | 1991-10-16 | Lucas Industries Public Limited Company | Fuel injection nozzle |
JP2000018132A (ja) * | 1998-07-06 | 2000-01-18 | Isuzu Motors Ltd | インジェクタ |
DE19956830A1 (de) * | 1999-11-25 | 2001-06-21 | Siemens Ag | Durchführung |
JP2001511231A (ja) * | 1997-12-11 | 2001-08-07 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 自己着火式の内燃機関のための燃料噴射ノズル |
JP2003035233A (ja) * | 2001-07-04 | 2003-02-07 | Robert Bosch Gmbh | 内燃機関用の燃料噴射弁 |
JP2004515707A (ja) * | 2000-12-11 | 2004-05-27 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料噴射弁 |
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DE2710138A1 (de) * | 1977-03-09 | 1978-09-14 | Maschf Augsburg Nuernberg Ag | Mehrloch-einspritzduese |
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US5020500A (en) | 1990-03-28 | 1991-06-04 | Stanadyne Automotive Corp. | Hole type fuel injector and injection method |
DE9301992U1 (de) * | 1993-02-12 | 1994-06-16 | Robert Bosch Gmbh, 70469 Stuttgart | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
US5899389A (en) * | 1997-06-02 | 1999-05-04 | Cummins Engine Company, Inc. | Two stage fuel injector nozzle assembly |
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GB9905231D0 (en) * | 1999-03-09 | 1999-04-28 | Lucas Ind Plc | Fuel injector |
DE10162651A1 (de) * | 2001-12-20 | 2003-09-04 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
-
2006
- 2006-02-14 EP EP06720720A patent/EP1851427B1/en not_active Expired - Fee Related
- 2006-02-14 WO PCT/US2006/005135 patent/WO2006091429A1/en active Application Filing
- 2006-02-14 JP JP2007556239A patent/JP4608555B2/ja not_active Expired - Fee Related
- 2006-02-21 US US11/358,345 patent/US7188788B2/en not_active Expired - Fee Related
- 2006-12-12 US US11/637,654 patent/US20070084949A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0451408A1 (en) * | 1990-04-12 | 1991-10-16 | Lucas Industries Public Limited Company | Fuel injection nozzle |
JP2001511231A (ja) * | 1997-12-11 | 2001-08-07 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 自己着火式の内燃機関のための燃料噴射ノズル |
JP2000018132A (ja) * | 1998-07-06 | 2000-01-18 | Isuzu Motors Ltd | インジェクタ |
DE19956830A1 (de) * | 1999-11-25 | 2001-06-21 | Siemens Ag | Durchführung |
JP2004515707A (ja) * | 2000-12-11 | 2004-05-27 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料噴射弁 |
JP2003035233A (ja) * | 2001-07-04 | 2003-02-07 | Robert Bosch Gmbh | 内燃機関用の燃料噴射弁 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015108335A (ja) * | 2013-12-04 | 2015-06-11 | 株式会社日本自動車部品総合研究所 | 燃料噴射ノズル |
JP2020045791A (ja) * | 2018-09-18 | 2020-03-26 | 株式会社Soken | 燃料噴射弁 |
Also Published As
Publication number | Publication date |
---|---|
US20070084949A1 (en) | 2007-04-19 |
EP1851427A1 (en) | 2007-11-07 |
JP4608555B2 (ja) | 2011-01-12 |
WO2006091429A1 (en) | 2006-08-31 |
EP1851427B1 (en) | 2011-05-11 |
US7188788B2 (en) | 2007-03-13 |
US20060186227A1 (en) | 2006-08-24 |
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