JP2007107417A - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP2007107417A JP2007107417A JP2005297412A JP2005297412A JP2007107417A JP 2007107417 A JP2007107417 A JP 2007107417A JP 2005297412 A JP2005297412 A JP 2005297412A JP 2005297412 A JP2005297412 A JP 2005297412A JP 2007107417 A JP2007107417 A JP 2007107417A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- valve
- passage
- fuel injection
- 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.)
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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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
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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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
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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
- 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
Abstract
【解決手段】 アクチュエータとしてのピエゾスタック2と、高圧燃料が供給される高圧通路17と、ピエゾスタック2の変位量を拡大させる変位拡大室6を含むと共に高圧燃料のリーク流体の圧力が所定圧力に保持される低圧通路8とを有し、変位拡大室6によって生じた拡大変位に基因して高圧通路17の高圧燃料が導入される背圧室14の圧力を制御し、背圧室14の圧力制御によりノズルニードル13を変位させて燃料を噴射する燃料噴射弁Jであって、減圧弁Iによって減圧されたコモンレールE内の高圧燃料の減圧燃料を、供給通路60を通して低圧通路8の変位拡大室6に供給加圧し、始動時変位拡大室6内の大きな気泡を早期に小さな気泡にして正常作動を行う。
【選択図】 図1
Description
E コモンレール
I 減圧弁
J 燃料噴射弁
K チェック弁
1 ケーシング
2 アクチュエータとしてのピエゾスタック
3 大径ピストン
5 小径ピストン
6 変位拡大室
8 低圧通路
12 バルブ(三方弁)
13 ノズルニードル
14 背圧室
17 高圧通路
25 噴孔
Claims (4)
- アクチュエータと、
高圧燃料が供給される高圧通路と、
前記アクチュエータの変位量を拡大させる変位拡大室を含むと共に前記高圧燃料のリーク燃料の圧力が所定圧力に保持される低圧通路とを有し、
前記変位拡大室によって生じた拡大変位に基因して前記高圧通路の高圧燃料が導入される背圧室の圧力を制御し、
前記背圧室の圧力制御によりノズルニードルを変位させて燃料を噴射する燃料噴射弁において、
前記低圧通路に前記高圧通路の高圧燃料の減圧燃料を供給加圧する手段が設けられていることを特徴とする燃料噴射弁。 - 前記手段は、前記高圧通路の高圧燃料を所定圧力に調整する調整弁及び前記調整弁と前記低圧通路とを連通する供給通路で構成されていることを特徴とする請求項1記載の燃料噴射弁
- 前記調整弁は、高圧燃料を蓄積保持するコモンレールに取付けられた減圧弁であることを特徴とする請求項2記載の燃料噴射弁
- ディーゼルエンジンのコモンレール式燃料噴射装置における燃料を噴射する燃料噴射弁に適用されていることを特徴とする請求項1から3のいずれか一つに記載の燃料噴射弁。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005297412A JP4609271B2 (ja) | 2005-10-12 | 2005-10-12 | 燃料噴射弁 |
DE102006035340A DE102006035340A1 (de) | 2005-10-12 | 2006-10-11 | Kraftstoffeinspritzgerät mit einer Kraftstoffzuführung für eine Verdrängungsverstärkungskammer |
US11/546,313 US7520267B2 (en) | 2005-10-12 | 2006-10-12 | Fuel injection apparatus having fuel supplier for displacement amplifying chamber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005297412A JP4609271B2 (ja) | 2005-10-12 | 2005-10-12 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007107417A true JP2007107417A (ja) | 2007-04-26 |
JP4609271B2 JP4609271B2 (ja) | 2011-01-12 |
Family
ID=37905469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005297412A Expired - Fee Related JP4609271B2 (ja) | 2005-10-12 | 2005-10-12 | 燃料噴射弁 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7520267B2 (ja) |
JP (1) | JP4609271B2 (ja) |
DE (1) | DE102006035340A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008133114A1 (ja) | 2007-04-16 | 2008-11-06 | Rheon Automatic Machinery Co., Ltd. | 食品生地成形装置および食品生地成形方法 |
WO2011140408A2 (en) * | 2010-05-07 | 2011-11-10 | Caterpillar Inc. | Hydraulically amplified mechanical coupling |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4968037B2 (ja) * | 2007-12-13 | 2012-07-04 | 株式会社デンソー | 背圧制御弁およびそれを用いた低圧燃料システム |
TW201106676A (en) * | 2009-08-04 | 2011-02-16 | Pacific Image Electronics Co Ltd | Double-light sources optical scanning device and method of using the same |
CH702496B1 (de) * | 2010-05-07 | 2011-07-15 | Liebherr Machines Bulle Sa | Hochdruckinjektor. |
DE102016207297B3 (de) * | 2016-04-28 | 2017-10-19 | Mtu Friedrichshafen Gmbh | Verfahren zum Betrieb einer Brennkraftmaschine, Einrichtung zum Steuern und/oder Regeln einer Brennkraftmaschine, Einspritzsystem und Brennkraftmaschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11200981A (ja) * | 1998-01-08 | 1999-07-27 | Nippon Soken Inc | 燃料噴射弁及びその駆動方法 |
JP2002322962A (ja) * | 2001-04-26 | 2002-11-08 | Nippon Soken Inc | 燃料噴射弁 |
JP2003120461A (ja) * | 2001-09-26 | 2003-04-23 | Robert Bosch Gmbh | 液体を制御するための弁 |
JP2004278358A (ja) * | 2003-03-13 | 2004-10-07 | Denso Corp | 燃料噴射弁 |
JP2005507053A (ja) * | 2001-10-19 | 2005-03-10 | 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 | 液体を制御する弁 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3507263A (en) * | 1969-06-13 | 1970-04-21 | Emile David Long | Fluid compression and expansion wave converter for precision fuel metering system |
US4142497A (en) * | 1975-11-06 | 1979-03-06 | Allied Chemical Corporation | Fuel pressure booster and regulator |
JP3476202B2 (ja) * | 1996-08-29 | 2003-12-10 | 三菱ふそうトラックバス株式会社 | 燃料噴射装置 |
EP1002948B1 (en) * | 1998-11-19 | 2003-03-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Accumulator type fuel injection system |
EP1008741B1 (en) * | 1998-11-20 | 2003-04-02 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Accumulator type fuel injection system |
DE10061987B4 (de) * | 2000-12-13 | 2005-06-16 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Kühlen einer Kraftstoffeinspritzanlage |
JP4013529B2 (ja) * | 2001-11-16 | 2007-11-28 | 三菱ふそうトラック・バス株式会社 | 燃料噴射装置 |
DE10218024A1 (de) * | 2002-04-23 | 2003-11-06 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
JP2005069135A (ja) * | 2003-08-26 | 2005-03-17 | Toyota Motor Corp | 燃料噴射装置 |
-
2005
- 2005-10-12 JP JP2005297412A patent/JP4609271B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-11 DE DE102006035340A patent/DE102006035340A1/de not_active Withdrawn
- 2006-10-12 US US11/546,313 patent/US7520267B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11200981A (ja) * | 1998-01-08 | 1999-07-27 | Nippon Soken Inc | 燃料噴射弁及びその駆動方法 |
JP2002322962A (ja) * | 2001-04-26 | 2002-11-08 | Nippon Soken Inc | 燃料噴射弁 |
JP2003120461A (ja) * | 2001-09-26 | 2003-04-23 | Robert Bosch Gmbh | 液体を制御するための弁 |
JP2005507053A (ja) * | 2001-10-19 | 2005-03-10 | 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 | 液体を制御する弁 |
JP2004278358A (ja) * | 2003-03-13 | 2004-10-07 | Denso Corp | 燃料噴射弁 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008133114A1 (ja) | 2007-04-16 | 2008-11-06 | Rheon Automatic Machinery Co., Ltd. | 食品生地成形装置および食品生地成形方法 |
WO2011140408A2 (en) * | 2010-05-07 | 2011-11-10 | Caterpillar Inc. | Hydraulically amplified mechanical coupling |
WO2011140408A3 (en) * | 2010-05-07 | 2012-03-15 | Caterpillar Inc. | Hydraulically amplified mechanical coupling |
US8500036B2 (en) | 2010-05-07 | 2013-08-06 | Caterpillar Inc. | Hydraulically amplified mechanical coupling |
Also Published As
Publication number | Publication date |
---|---|
DE102006035340A1 (de) | 2007-04-26 |
JP4609271B2 (ja) | 2011-01-12 |
US7520267B2 (en) | 2009-04-21 |
US20070079807A1 (en) | 2007-04-12 |
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