EP1636485A1 - Injektor f r kraftstoff-einspritzsysteme von brennkraftmasch inen, insbesondere von direkteinspritzenden dieselmotoren - Google Patents
Injektor f r kraftstoff-einspritzsysteme von brennkraftmasch inen, insbesondere von direkteinspritzenden dieselmotorenInfo
- Publication number
- EP1636485A1 EP1636485A1 EP04726421A EP04726421A EP1636485A1 EP 1636485 A1 EP1636485 A1 EP 1636485A1 EP 04726421 A EP04726421 A EP 04726421A EP 04726421 A EP04726421 A EP 04726421A EP 1636485 A1 EP1636485 A1 EP 1636485A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injector
- nozzle
- piezo actuator
- nozzle needle
- piston
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract 6
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive 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
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions
Definitions
- the invention relates to an injector according to the preamble of patent claim 1.
- a nozzle body 20 which receives a nozzle needle 21.
- the nozzle body 20 is fastened to the injector body 10 by means of a union nut 22 in such a way that it comes into sealing contact with a rear end face 23 on a lower end face 24 of the injector body 10.
- the nozzle body 20 has an upwardly open, multi-graded interior 25, which forms a conical valve seat 28 opening out into two nozzle outlet bores 26, 27.
- the valve seat 28 interacts with a conical end section 29 of the nozzle needle 21, which acts as a closing body.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10326259A DE10326259A1 (de) | 2003-06-11 | 2003-06-11 | Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren |
| PCT/DE2004/000738 WO2004111434A1 (de) | 2003-06-11 | 2004-04-08 | Injektor für kraftstoff-einspritzsysteme von brennkraftmaschinen, insbesondere von direkteinspritzenden dieselmotoren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1636485A1 true EP1636485A1 (de) | 2006-03-22 |
| EP1636485B1 EP1636485B1 (de) | 2009-01-14 |
Family
ID=33494946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04726421A Expired - Lifetime EP1636485B1 (de) | 2003-06-11 | 2004-04-08 | Injektor für kraftstoff-einspritzsysteme von brennkraftmaschinen, insbesondere von direkteinspritzenden dieselmotoren |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7431220B2 (de) |
| EP (1) | EP1636485B1 (de) |
| JP (1) | JP2006510850A (de) |
| KR (1) | KR20060021357A (de) |
| CN (1) | CN100432420C (de) |
| DE (2) | DE10326259A1 (de) |
| WO (1) | WO2004111434A1 (de) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10346242B4 (de) * | 2003-10-06 | 2012-04-12 | Robert Bosch Gmbh | Injektorkörper für einen Common Rail Injektor |
| DE102004004006A1 (de) * | 2004-01-27 | 2005-08-11 | Robert Bosch Gmbh | Integrierter hydraulischer Druckübersetzer für Kraftstoffinjektoren an Hochdruckspeichereinspritzsystemen |
| DE102005015997A1 (de) * | 2004-12-23 | 2006-07-13 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Steuerung des Einspritzventilgliedes |
| DE102005007543A1 (de) * | 2005-02-18 | 2006-08-24 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine |
| DE102005012929A1 (de) * | 2005-03-21 | 2006-09-28 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Steuerung des Einspritzventilglieds und variabler Übersetzung |
| DE102005015735A1 (de) * | 2005-04-06 | 2006-10-12 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102005015731A1 (de) * | 2005-04-06 | 2006-10-12 | Robert Bosch Gmbh | Kraftstoffinjektor mit Piezoaktor |
| DE102006006889A1 (de) | 2006-02-15 | 2007-08-23 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| ATE511014T1 (de) * | 2006-03-20 | 2011-06-15 | Delphi Tech Holding Sarl | Dämpfungsanordnung für ein einspritzventil |
| EP1837515A1 (de) | 2006-03-20 | 2007-09-26 | Delphi Technologies, Inc. | Dämpfungsanordnung für ein Einspritzventil |
| DE102006018032A1 (de) | 2006-04-19 | 2007-10-31 | Robert Bosch Gmbh | Aktormodul |
| DE102006036780A1 (de) * | 2006-08-07 | 2008-02-21 | Robert Bosch Gmbh | Krafstoffinjektor mit direkter Nadelsteuerung und Servoventil-Unterstützung |
| DE102007004380A1 (de) | 2007-01-29 | 2008-07-31 | Robert Bosch Gmbh | Injektor mit piezoelektrischem Aktuator |
| DE102007044361A1 (de) * | 2007-09-17 | 2009-03-19 | Robert Bosch Gmbh | Steuerventil für einen Kraftstoffinjektor |
| FR2922406A1 (fr) * | 2007-10-12 | 2009-04-17 | Commissariat Energie Atomique | Dispositif d'injection de charge liquide a melanger/convertir au sein d'un dard plasma ou d'un flux gazeux |
| DE102008003851A1 (de) | 2008-01-10 | 2009-07-16 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102008003838A1 (de) * | 2008-01-10 | 2009-07-16 | Robert Bosch Gmbh | Piezoaktormodul und Piezoinjektor sowie ein Verfahren zur Herstellung eines Piezoaktormoduls |
| DE102008002438A1 (de) | 2008-06-16 | 2009-12-17 | Robert Bosch Gmbh | Injektor zum Einspritzen von Kraftstoff |
| CN101649797B (zh) * | 2008-08-16 | 2013-05-29 | 柳州福尔曼汽车电子有限公司 | 一种磁致伸缩元件驱动的无背压电控柴油喷油器 |
| CN101649796B (zh) * | 2008-08-16 | 2013-08-07 | 柳州福尔曼汽车电子有限公司 | 磁致伸缩元件驱动的无背压电控柴油喷油器 |
| DE102008041645A1 (de) | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Aktormodul |
| DE102008044164A1 (de) | 2008-11-28 | 2010-06-02 | Robert Bosch Gmbh | Aktormodul |
| US8201543B2 (en) * | 2009-05-14 | 2012-06-19 | Cummins Intellectual Properties, Inc. | Piezoelectric direct acting fuel injector with hydraulic link |
| DE102009054682A1 (de) | 2009-12-15 | 2011-06-16 | Robert Bosch Gmbh | Einspritzventil |
| DE102010063219B4 (de) | 2010-12-16 | 2018-05-24 | Robert Bosch Gmbh | Piezoelektrisches Aktormodul und Brennstoffeinspritzventil |
| US9284930B2 (en) * | 2011-06-03 | 2016-03-15 | Michael R. Harwood | High pressure piezoelectric fuel injector |
| DE102012005319A1 (de) * | 2012-03-19 | 2013-09-19 | L'orange Gmbh | Injektorbaugruppe |
| DE102012209616A1 (de) | 2012-06-08 | 2013-12-12 | Robert Bosch Gmbh | Anordnung mit einem piezoelektrischen Aktor und einer Steuerung sowie Verfahren zur Ansteuerung eines piezoelektrischen Aktors |
| CN103244322B (zh) * | 2013-04-28 | 2015-03-11 | 哈尔滨工程大学 | 双燃料电磁压电控制式喷射器 |
| CN103244321B (zh) * | 2013-04-28 | 2015-03-11 | 哈尔滨工程大学 | 双燃料双压电控制式喷射器 |
| DE102014211334B3 (de) * | 2014-06-13 | 2015-08-27 | Continental Automotive Gmbh | Verfahren zur Charakterisierung eines hydraulischen Koppelelementes eines Piezo-Injektors |
| JP2023122384A (ja) * | 2022-02-22 | 2023-09-01 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | インジェクタ |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022166A (en) * | 1975-04-03 | 1977-05-10 | Teledyne Industries, Inc. | Piezoelectric fuel injector valve |
| DE2931874C2 (de) * | 1979-08-06 | 1983-08-04 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Elektrisch betätigbares Ventil |
| DE3518945A1 (de) | 1985-05-25 | 1986-11-27 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoff-einspritzduese fuer brennkraftmaschinen |
| DE4306073C1 (de) | 1993-02-26 | 1994-06-01 | Siemens Ag | Zumeßvorrichtung für Fluide |
| US5482213A (en) * | 1993-05-31 | 1996-01-09 | Aisin Seiki Kabushiki Kaisha | Fuel injection valve operated by expansion and contraction of piezoelectric element |
| JP3814935B2 (ja) * | 1997-04-18 | 2006-08-30 | 日産自動車株式会社 | エンジンの燃料噴射弁 |
| US5947380A (en) * | 1997-11-03 | 1999-09-07 | Caterpillar Inc. | Fuel injector utilizing flat-seat poppet valves |
| JP3922780B2 (ja) * | 1998-01-08 | 2007-05-30 | 株式会社日本自動車部品総合研究所 | 燃料噴射弁及びその駆動方法 |
| JP2000161175A (ja) | 1998-11-26 | 2000-06-13 | Hitachi Ltd | インジェクタおよび燃料噴射システム |
| DE19946840A1 (de) * | 1999-09-30 | 2001-05-03 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
| US20020053611A1 (en) * | 2000-06-29 | 2002-05-09 | Friedrich Boecking | High-pressure injector with reduced leakage |
| ATE353118T1 (de) | 2000-07-18 | 2007-02-15 | Delphi Tech Inc | Kraftstoffeinspritzventil |
| JP2002202022A (ja) * | 2000-10-30 | 2002-07-19 | Denso Corp | バルブ駆動装置および燃料噴射弁 |
| US6766965B2 (en) * | 2001-08-31 | 2004-07-27 | Siemens Automotive Corporation | Twin tube hydraulic compensator for a fuel injector |
| DE10151688A1 (de) | 2001-10-19 | 2003-04-30 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
| DE10326046A1 (de) * | 2003-06-10 | 2004-12-30 | Robert Bosch Gmbh | Einspritzdüse für Brennkraftmaschinen |
| DE102005004738A1 (de) * | 2005-02-02 | 2006-08-10 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine |
| DE102005012929A1 (de) * | 2005-03-21 | 2006-09-28 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Steuerung des Einspritzventilglieds und variabler Übersetzung |
-
2003
- 2003-06-11 DE DE10326259A patent/DE10326259A1/de not_active Withdrawn
-
2004
- 2004-04-08 CN CNB2004800163770A patent/CN100432420C/zh not_active Expired - Fee Related
- 2004-04-08 US US10/559,710 patent/US7431220B2/en not_active Expired - Fee Related
- 2004-04-08 DE DE502004008875T patent/DE502004008875D1/de not_active Expired - Lifetime
- 2004-04-08 EP EP04726421A patent/EP1636485B1/de not_active Expired - Lifetime
- 2004-04-08 WO PCT/DE2004/000738 patent/WO2004111434A1/de not_active Ceased
- 2004-04-08 JP JP2005518248A patent/JP2006510850A/ja active Pending
- 2004-04-08 KR KR1020057023685A patent/KR20060021357A/ko not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004111434A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1636485B1 (de) | 2009-01-14 |
| CN100432420C (zh) | 2008-11-12 |
| DE502004008875D1 (de) | 2009-03-05 |
| KR20060021357A (ko) | 2006-03-07 |
| DE10326259A1 (de) | 2005-01-05 |
| CN1806116A (zh) | 2006-07-19 |
| JP2006510850A (ja) | 2006-03-30 |
| US20060255184A1 (en) | 2006-11-16 |
| WO2004111434A1 (de) | 2004-12-23 |
| US7431220B2 (en) | 2008-10-07 |
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