EP1415083A1 - Brennstoffeinspritzventil - Google Patents
BrennstoffeinspritzventilInfo
- Publication number
- EP1415083A1 EP1415083A1 EP02742752A EP02742752A EP1415083A1 EP 1415083 A1 EP1415083 A1 EP 1415083A1 EP 02742752 A EP02742752 A EP 02742752A EP 02742752 A EP02742752 A EP 02742752A EP 1415083 A1 EP1415083 A1 EP 1415083A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- fuel injection
- injection valve
- flange
- valve according
- 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 67
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
- F02D2041/2079—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit having several coils acting on the same anchor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
Definitions
- the invention relates to a fuel injector according to the preamble of the main claim.
- the closing times of fuel injection valves are extended by adhesive forces between the armature and core on the one hand and by eddy currents on the other.
- adhesive forces between the armature and core on the one hand and by eddy currents on the other.
- an electromagnetically actuated fuel injection valve for injecting fuel into an internal combustion engine in which the magnetic coil has three windings which are controlled by three separate circuits.
- the first circuit is used to quickly open the fuel injector, the second circuit to keep the fuel injector open, and the third circuit to generate an opposing field that clears the residual magnetic field to quickly close the fuel injector.
- the fuel injector according to the invention with the features of the main claim has the advantage that a fuel injector with the combination of a double coil concept and the armature free travel principle, which enables fast opening and an active and thus accelerated closing process by means of a forward stroke and a positioning spring per solenoid coil low control power of the magnetic circuits and high switching dynamics can be realized.
- Return spring is, whereby a reinforcement of the return spring is unnecessary.
- the armature clearances advantageously amount to approximately half the total stroke of the armature of the magnetic circuit, as a result of which the armature is held in oscillating central positions by a suitable timing, which results in the high switching dynamics.
- FIG. 1 is a partial sectional view of an embodiment of a fuel injector according to the invention
- FIG. 2 shows a highly schematic section of the Pig. 1 shown fuel injector according to the invention in the area ZI in Fig. 1
- FIG. 3A shows a diagram of the time course of the armature and valve needle stroke of the exemplary embodiment of a fuel injector according to the invention shown in FIG. 1, and
- FIG. 3B is a diagram of the switching phases of the embodiment of a fuel injector according to the invention shown in FIG. 1.
- the fuel injection valve 1 shows an excerpted sectional view of the middle part of a fuel injection valve 1.
- the fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) of a mixture-compressing, spark-ignition internal combustion engine.
- the fuel injector 1 can be designed as an inward or outward opening fuel injector 1. In the case of Fig. 1 is an inwardly opening fuel injector 1.
- the fuel injector 1 comprises a first solenoid 2, which interacts with a first armature 3, and a second solenoid 4, which interacts with a second armature 5.
- the first magnet coil 2 is wound on a first coil carrier 6 and the second magnet coil 4 is wound on a second coil carrier 7.
- the first magnet coil 2 surrounds a first core part 8, while the second magnet coil 4 surrounds a second core part 9.
- the first magnet coil 2 and the second magnet coil 4 are separated from one another in the axial direction by a web 10.
- the first armature 3 and the second armature 5 are arranged between the first core part 8 and the second core part 9 and are separated from one another by a stop ring 11.
- the stop ring 11 is ge for the magnetic separation of the __ magnetic circuits on a non-magnetizable material.
- a valve needle 14 extends through the first core part 8, the second core part 9 and the two armatures 3 and 5.
- the first armature 3 is operatively connected to the valve needle 14 via a first flange 12, while the second armature 5 via a second flange 13 is in operative connection with Ventilna.del 14.
- the flanges 12 and 13 can be welded to the valve needle 14 or pressed onto it.
- a first positioning spring 15 is clamped between the first flange 12 and the first armature 3 and acts on the first armature 3 in a closing direction.
- a second positioning spring 16 is provided between the second flange 13 and the second armature 5, which acts on the second armature 5 in an opening direction of the fuel injection valve 1.
- a first working gap 18 is formed between the first armature 3 and the first core part 8 due to the positioning springs 15 and 16, while a second working gap 19 is located between the second armature 5 and the second core part 9.
- the anchors 3 and 5 are in contact with the stop ring 11.
- a first anchor free path 23 is formed between the first flange 12 and the first anchor 3 and a second anchor free path 24 is formed between the second flange 13 and the second anchor 5.
- a return spring 17 is supported in the feed direction, which acts on the valve needle 14 in such a way that a valve-closure member, not shown, which is in operative connection with the valve needle 14, is kept in sealing contact with a sealing seat and thus the fuel injector 1 is kept closed.
- the spring constant of the return spring 17 is very much larger than the spring constant of the positioning springs 15 and 16.
- the fuel injector 1 further comprises a nozzle body 20 which has an outer pole 21 of the magnetic circuits be upheld.
- the fuel is supplied centrally and passed through a central recess 22 of the fuel injection valve 1 and through the tubular valve needle 14 to the sealing seat.
- FIGS. 2 and 3A to 3B A detailed description of the mode of operation and dynamics of the fuel injection valve 1 and of the measures according to the invention can be found in FIGS. 2 and 3A to 3B and the following description.
- FIG. 2 shows a sectional detail of a highly schematic detail of the exemplary embodiment of a fuel injector 1 according to the invention described in FIG. 1 to clarify the working gaps 18 and 19 and the armature clearances 23 and 24. Only those parts of the fuel injector 1 • are shown in the drawing, which are needed to explain the mode of operation. Components already described are provided with the same reference numerals. The following description of the
- FIGS. 3A and 3B show the time course of the armature and valve needle stroke of the exemplary embodiment of a fuel injector 1 according to the invention shown in FIG. 1 as well as the switching phases of the opening and closing process.
- the first stroke x is smaller than the first working gap 18, which is formed between the first armature 3 and the first core part 8.
- the total width of the working gaps 18 and 19 can be, for example, approximately 110 ⁇ m, of which approximately 50 ⁇ m is accounted for by the preliminary stroke hi or h 2 .
- the second solenoid 4 is also energized while the first solenoid 2 is energized. It will
- the first armature 3 has meanwhile already returned to its starting position due to the force of the first positioning spring 15, where it remains until the next opening cycle.
- the second positioning spring 16 can also reset the second armature 5 into its initial position.
- Fig. 3A it can be seen that after each passage through the first and second stroke h ⁇ _ and h 2, the armature 3 and 5 are kept in an oscillating floating state, whereby a pre-acceleration of the valve needle 14 when opening or closing the fuel injector 1 is omitted can and the switching dynamics is significantly improved.
- a quick-opening and quick-closing fuel injector 1 can thus be realized through the connection of a double coil concept and the armature free travel principle, which has improved dynamics with a bouncer-independent closing process, which is promoted by an active closing pulse of the second armature 5, with low supply voltages and reduced spring force of the return spring 17 combined.
- Embodiment limited, but is suitable for any construction of fuel injection valves 1, especially for outward opening
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (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 (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10136808A DE10136808A1 (de) | 2001-07-27 | 2001-07-27 | Brennstoffeinspritzventil |
| DE10136808 | 2001-07-27 | ||
| PCT/DE2002/001758 WO2003012284A1 (de) | 2001-07-27 | 2002-05-16 | Brennstoffeinspritzventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1415083A1 true EP1415083A1 (de) | 2004-05-06 |
| EP1415083B1 EP1415083B1 (de) | 2008-03-12 |
Family
ID=7693404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02742752A Expired - Lifetime EP1415083B1 (de) | 2001-07-27 | 2002-05-16 | Brennstoffeinspritzventil |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6892971B2 (de) |
| EP (1) | EP1415083B1 (de) |
| JP (1) | JP4085057B2 (de) |
| KR (1) | KR100853647B1 (de) |
| DE (2) | DE10136808A1 (de) |
| WO (1) | WO2003012284A1 (de) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10319285B3 (de) * | 2003-04-29 | 2004-09-23 | Compact Dynamics Gmbh | Brennstoff-Einspritzventil für Brennkraftmaschinen |
| DE10361761A1 (de) * | 2003-12-29 | 2005-07-28 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102004032229B3 (de) * | 2004-07-02 | 2006-01-05 | Compact Dynamics Gmbh | Brennstoff-Einspritzventil |
| FI119030B (fi) * | 2005-04-28 | 2008-06-30 | Waertsilae Finland Oy | Polttomoottorin polttoaineen syöttölaitteiston ohjausjärjestelmä |
| US8365700B2 (en) * | 2008-01-07 | 2013-02-05 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
| US8635985B2 (en) | 2008-01-07 | 2014-01-28 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
| US7628137B1 (en) | 2008-01-07 | 2009-12-08 | Mcalister Roy E | Multifuel storage, metering and ignition system |
| US8413634B2 (en) | 2008-01-07 | 2013-04-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters with conductive cable assemblies |
| US8387599B2 (en) | 2008-01-07 | 2013-03-05 | Mcalister Technologies, Llc | Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines |
| US8561598B2 (en) | 2008-01-07 | 2013-10-22 | Mcalister Technologies, Llc | Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors |
| US8074625B2 (en) | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
| US8235252B2 (en) * | 2008-10-14 | 2012-08-07 | Brandt Jr Robert O | High-speed actuator for valves |
| JP5307517B2 (ja) * | 2008-11-14 | 2013-10-02 | カヤバ工業株式会社 | ソレノイド |
| DE102009006179B4 (de) * | 2009-01-26 | 2010-12-30 | Continental Automotive Gmbh | Schaltungsanordnung zur Ansteuerung eines Einspritzventils |
| CN101539084B (zh) * | 2009-03-20 | 2010-12-29 | 天津大学 | 共轨式电控喷射器 |
| CN102713244A (zh) | 2009-08-27 | 2012-10-03 | 麦卡利斯特技术有限责任公司 | 在具有多个驱动器和/或电离控制的燃烧室中成形供应燃料 |
| KR20120086375A (ko) * | 2009-12-07 | 2012-08-02 | 맥알리스터 테크놀로지즈 엘엘씨 | 연료 인젝터 및 점화기를 위한 적응 제어 시스템 |
| CN102844540A (zh) | 2010-02-13 | 2012-12-26 | 麦卡利斯特技术有限责任公司 | 用于自适应地冷却发动机中的燃烧室的方法和系统 |
| US20110297753A1 (en) | 2010-12-06 | 2011-12-08 | Mcalister Roy E | Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture |
| US8205805B2 (en) | 2010-02-13 | 2012-06-26 | Mcalister Technologies, Llc | Fuel injector assemblies having acoustical force modifiers and associated methods of use and manufacture |
| EP2444651B1 (de) * | 2010-10-19 | 2013-07-10 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
| US8528519B2 (en) | 2010-10-27 | 2013-09-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
| US8091528B2 (en) | 2010-12-06 | 2012-01-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture |
| US8820275B2 (en) | 2011-02-14 | 2014-09-02 | Mcalister Technologies, Llc | Torque multiplier engines |
| CN103890343B (zh) | 2011-08-12 | 2015-07-15 | 麦卡利斯特技术有限责任公司 | 用于改进的发动机冷却及能量产生的系统和方法 |
| US8919377B2 (en) | 2011-08-12 | 2014-12-30 | Mcalister Technologies, Llc | Acoustically actuated flow valve assembly including a plurality of reed valves |
| DE102012202253A1 (de) * | 2012-02-15 | 2013-08-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102012203124A1 (de) * | 2012-02-29 | 2013-08-29 | Robert Bosch Gmbh | Einspritzventil |
| DE102012210415A1 (de) * | 2012-06-20 | 2013-12-24 | Robert Bosch Gmbh | Einspritzventil |
| JP5982210B2 (ja) * | 2012-07-27 | 2016-08-31 | 日立オートモティブシステムズ株式会社 | 電磁式燃料噴射弁 |
| EP2896813B1 (de) * | 2014-01-17 | 2018-01-10 | Continental Automotive GmbH | Kraftstoffeinspritzventil für einen Verbrennungsmotor |
| JP6327191B2 (ja) * | 2015-04-07 | 2018-05-23 | 株式会社デンソー | 燃料噴射弁 |
| ITBO20150235A1 (it) * | 2015-05-05 | 2016-11-05 | Magneti Marelli Spa | Iniettore elettromagnetico di carburante con ottimizzazione delle saldature |
| JP6563020B2 (ja) * | 2015-08-25 | 2019-08-21 | 日立オートモティブシステムズ株式会社 | 電磁弁 |
| EP3287632A1 (de) * | 2016-08-23 | 2018-02-28 | Continental Automotive GmbH | Ventilanordnung für ein einspritzventil und einspritzventil |
| KR20200059343A (ko) * | 2018-11-20 | 2020-05-29 | 현대자동차주식회사 | 엔진의 연료 인젝터 |
| KR102329852B1 (ko) * | 2020-09-03 | 2021-11-22 | 주식회사 현대케피코 | 산포 저감형 인젝터 |
| KR102363187B1 (ko) * | 2020-09-03 | 2022-02-15 | 주식회사 현대케피코 | 아마추어부 바운싱 저감 인젝터 |
| KR102619606B1 (ko) * | 2021-09-30 | 2023-12-28 | 주식회사 현대케피코 | 연료분사밸브 및 그 구동방법 |
| JP2024104930A (ja) * | 2023-01-25 | 2024-08-06 | 株式会社デンソー | 電磁アクチュエータ制御システム |
| KR102844822B1 (ko) * | 2023-09-12 | 2025-08-11 | 주식회사 현대케피코 | 더미 코일을 이용한 아마추어 거동 개선형 인젝터 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2150099A1 (de) * | 1970-10-07 | 1972-05-25 | Hitachi Ltd | Treibstoff-Einspritzanlage |
| DD101944A1 (de) * | 1972-06-29 | 1973-11-20 | ||
| US4275693A (en) * | 1977-12-21 | 1981-06-30 | Leckie William H | Fuel injection timing and control apparatus |
| DE2854921A1 (de) | 1977-12-21 | 1979-07-05 | William H Leckie | Brennstoff-einspritzvorrichtung |
| DE3834446A1 (de) * | 1988-10-10 | 1990-04-12 | Mesenich Gerhard | Elektromagnetisches einspritzventil in patronenbauweise |
| DE3905992A1 (de) * | 1989-02-25 | 1989-09-21 | Mesenich Gerhard | Elektromagnetisches hochdruckeinspritzventil |
| JP3830625B2 (ja) | 1997-08-07 | 2006-10-04 | 株式会社日本自動車部品総合研究所 | 燃料噴射装置 |
| US6167869B1 (en) * | 1997-11-03 | 2001-01-02 | Caterpillar Inc. | Fuel injector utilizing a multiple current level solenoid |
| US5915624A (en) * | 1997-11-03 | 1999-06-29 | Caterpillar Inc. | Fuel injector utilizing a biarmature solenoid |
| US6036120A (en) | 1998-03-27 | 2000-03-14 | General Motors Corporation | Fuel injector and method |
| DE19816315A1 (de) * | 1998-04-11 | 1999-10-14 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| US6113014A (en) * | 1998-07-13 | 2000-09-05 | Caterpillar Inc. | Dual solenoids on a single circuit and fuel injector using same |
| DE19849210A1 (de) * | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| DE19948238A1 (de) * | 1999-10-07 | 2001-04-19 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| GB0001766D0 (en) * | 2000-01-27 | 2000-03-15 | Delphi Tech Inc | Fuel injector |
-
2001
- 2001-07-27 DE DE10136808A patent/DE10136808A1/de not_active Withdrawn
-
2002
- 2002-05-16 DE DE50211887T patent/DE50211887D1/de not_active Expired - Lifetime
- 2002-05-16 KR KR1020047000999A patent/KR100853647B1/ko not_active Expired - Fee Related
- 2002-05-16 WO PCT/DE2002/001758 patent/WO2003012284A1/de not_active Ceased
- 2002-05-16 US US10/381,622 patent/US6892971B2/en not_active Expired - Fee Related
- 2002-05-16 EP EP02742752A patent/EP1415083B1/de not_active Expired - Lifetime
- 2002-05-16 JP JP2003517441A patent/JP4085057B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03012284A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10136808A1 (de) | 2003-02-13 |
| KR100853647B1 (ko) | 2008-08-25 |
| US6892971B2 (en) | 2005-05-17 |
| EP1415083B1 (de) | 2008-03-12 |
| WO2003012284A1 (de) | 2003-02-13 |
| US20040050977A1 (en) | 2004-03-18 |
| DE50211887D1 (de) | 2008-04-24 |
| JP4085057B2 (ja) | 2008-04-30 |
| JP2004522070A (ja) | 2004-07-22 |
| KR20040026689A (ko) | 2004-03-31 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20040227 |
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