EP1481161A1 - Brennstoffeinspritzventil - Google Patents
BrennstoffeinspritzventilInfo
- Publication number
- EP1481161A1 EP1481161A1 EP02795043A EP02795043A EP1481161A1 EP 1481161 A1 EP1481161 A1 EP 1481161A1 EP 02795043 A EP02795043 A EP 02795043A EP 02795043 A EP02795043 A EP 02795043A EP 1481161 A1 EP1481161 A1 EP 1481161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- swirl
- fuel injection
- valve
- fuel
- injection valve
- 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
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
-
- 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
- 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
- F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means
Definitions
- the invention relates to a fuel injection valve according to the preamble of the main claim.
- a fuel injection valve which has swirl channels (referred to there as fuel channels) which are inclined in their position to the axis of the valve needle in the direction of the main flow of the fuel.
- the inclination of the swirl channels in DE 196 25 059 AI serves to directly, i.e. through the swirl chamber located in the main flow direction after the valve seat surface and the spray opening, a fuel jet. without injecting parts of the fuel injector that lie after the swirl channel's spray opening into the combustion chamber following in the spray direction.
- the aim is to influence the direction, shape and in particular the similarity of the emerging fuel clouds.
- a disadvantage of the fuel injector known from DE 196 25 059 AI is, in particular, the inhomogeneity of the fuel clouds generated, which often occurs, in particular when the combustion chamber is largely symmetrical and gas exchange devices, ignition devices and injection valves are arranged largely symmetrically is undesirable. Furthermore, the swirl formation in the swirl chamber is restricted.
- the fuel injection valve according to the invention with the characterizing features of the main claim has advantages that are justified, among other things, by a more cost-effective manufacturing method. So it is, among other things, due to the arrangement of the swirl channels r, which, viewed in the flow direction of the fuel through the swirl channel, are inclined towards the valve needle axis against the spray opening, it is possible for me to laser drill in the swirl channel flow direction, ie from the outer circumference of the valve seat body towards the center without a so-called protective zform to protect the inner wall of the valve seat body lying opposite the swirl channel in the direction of flow, since the emerging laser beam would not hit the opposite inner wall in its course. Because such a form of protection by bombarding the laser
- the smallest droplets of melt can be extracted or blown out during the drilling process. Furthermore, the spray opening and swirl duct can be inexpensively combined in one clamping, i.e. can be produced in one operation.
- the swirl channels are introduced so far at the upstream end of the valve seat body that the laser nozzle does not come into contact with the downstream shapes of the valve seat body.
- the diameter of the valve closing body is preferably larger in the upstream guide region than in 'the immediately adjacent area thereof stro downward Drallsch-. This is achieved by a diameter shoulder in the valve closing body.
- the volume of the swirl chamber is greatest near the diameter shoulder and is kept small by an annular gap width which is continuously reduced in the direction of flow and which is formed by a section of the valve needle which widens in the direction of flow, so that a stepless cross-sectional transition is achieved. This minimizes the swirl chamber volume and the enclosed fluid mass can be set in rotation sufficiently quickly at the start of the spray.
- the swirl flow in the swirl chamber can be adjusted according to requirements by means of a tangential component relative to a longitudinal axis of the fuel injection valve.
- a tangential component relative to a longitudinal axis of the fuel injection valve.
- the cross-sectional shapes of the swirl channels can be made as desired. These are preferably circular, but also elliptical, square, rectangular, triangular, polygonal or trapezoidal.
- FIG. 1 shows a schematic section through an exemplary embodiment of a fuel injection valve according to the invention
- FIG. 2 shows a schematic partial section through the exemplary embodiment of a fuel injector according to the invention shown in FIG. 1 in the region of the valve seat body;
- FIG. 3 shows a schematic section of the valve seat body along the line III-III of FIG. 2.
- the first exemplary embodiment of a fuel injection valve 1 according to the invention shown in FIG. 1 is designed in the form of a fuel injection valve 1 for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines.
- the fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) of an internal combustion engine.
- the fuel injector 1 consists of a nozzle body 2, in which a valve needle 3 is arranged.
- the valve needle 3 is connected to a valve closing body 4 in operative connection which cooperates with a disposed on a 'valve seat member 5, valve seat surface 6 to form a sealing seat.
- fuel injector 1 is a fuel injector 1 opening inwards.
- the nozzle body 2 is sealed by a seal 8 against the outer pole 9 of a solenoid 10.
- the magnet coil 10 is encapsulated in a coil housing 11 and wound onto a coil carrier 12 which bears against an inner pole 13 of the magnet coil 10.
- the inner pole 13 and the outer pole 9 are separated from one another by a gap 26 and are supported on a connecting component 29.
- the magnet coil 10 is excited via a line 19 by an electrical current that can be supplied via an electrical plug contact 17.
- the plug contact 17 is surrounded by a plastic sheath 18, which can be molded onto the inner pole 13.
- the valve needle 3 is guided in a valve needle guide 14, which is disc-shaped.
- a 'paired adjustment disk is used to adjust the lift 15.
- At the other side of adjustment disk 15 is an armature 20. This is connected via a first flange 21 force-locking to valve needle 3, which is connected by a weld 22 to the first flange 21st
- a restoring spring 23 is supported on the first flange 21 and, in the present design of the fuel injector 1, is preloaded by a sleeve 24.
- Fuel channels 30a and 30b run in the valve needle guide 14 and in the armature 20.
- the fuel is supplied via a central fuel supply 16 and filtered by a filter element 25.
- Swirl channels 34 are provided in the valve seat body 5 both for fuel line and for swirl generation.
- the fuel injector 1 is sealed by a seal 28 against a fuel feed line, not shown, and a seal 40 against a cylinder head, not shown.
- the armature 20 In the idle state of the fuel injection valve 1, the armature 20 is acted upon by the return spring 23 against its stroke direction in such a way that the valve closing body 4 is held in sealing contact with the valve seat surface 6.
- the magnetic coil 10 When the magnetic coil 10 is excited, it builds up a magnetic field which moves the armature 20 against the spring force of the return spring 23 in the stroke direction, the stroke being predetermined by a working gap 27 which is in the rest position between the inner pole 12 and the armature 20.
- the armature 20 also carries the flange 21, which is welded to the valve needle 3, in the stroke direction.
- the valve closing body 4, which is operatively connected to the valve needle 3, lifts off the valve seat surface 6 and the fuel supplied via the swirl channels 34 in the valve seat body 5 is sprayed off.
- the armature 20 drops from the inner pole 13 after the magnetic field has been sufficiently reduced by the force of the return spring 23, as a result of which the flange 21 which is operatively connected to the valve needle 3 moves counter to the stroke direction.
- the valve needle 3 is thereby moved in the same direction, as a result of which the valve closing body 4 rests on the valve seat surface 6 and the fuel injector 1 is closed.
- the cut-out end of the fuel injector 1 according to the invention from FIG. 1, shown enlarged in detail in FIG. 2, comprises a valve seat body 5 which has at least one swirl channel 34. Matching components are provided with corresponding reference numerals in the figures. Between the valve seat body 5 and the valve closing body 4, a swirl chamber 35 which tapers in the exemplary embodiment in the flow direction is formed, the taper being formed by a section 38 of the valve needle 3 which widens in the direction of flow.
- the volume of the swirl chamber 35 is preferably dimensioned such that the dead volume is minimal and a ' circumferentially directed swirl flow is involved. Influx of fuel can form in the swirl chamber 35.
- the swirl chamber 35 viewed in the flow direction, is delimited at the upstream end by a diameter shoulder 39 of the valve needle 3 and at the downstream end by the bearing of the valve closing body 4 on the valve seat body 5.
- the volume of the swirl chamber 35 is greatest in the region of the confluence of the swirl channels 34.
- blowing off or suctioning off slag and melt from the swirl duct 34 in the swirl duct manufacture by laser drilling is made considerably easier, in particular since the protective form would block the opening of the inner swirl duct end that is created and thus no cleaning stream passing through the swirl duct 34 could arise.
- Fig. 3 shows a schematic sectional view of a section through the embodiment of the fuel injector 1 according to the invention shown in Fig. 2 along the line III-III.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10208223 | 2002-02-26 | ||
DE10208223A DE10208223A1 (de) | 2002-02-26 | 2002-02-26 | Brennstoffeinspritzventil |
PCT/DE2002/004736 WO2003072931A1 (de) | 2002-02-26 | 2002-12-23 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1481161A1 true EP1481161A1 (de) | 2004-12-01 |
EP1481161B1 EP1481161B1 (de) | 2008-02-27 |
Family
ID=27762451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02795043A Expired - Lifetime EP1481161B1 (de) | 2002-02-26 | 2002-12-23 | Brennstoffeinspritzventil |
Country Status (7)
Country | Link |
---|---|
US (1) | US7032845B2 (de) |
EP (1) | EP1481161B1 (de) |
JP (1) | JP4308670B2 (de) |
KR (1) | KR20040089666A (de) |
AT (1) | ATE387578T1 (de) |
DE (2) | DE10208223A1 (de) |
WO (1) | WO2003072931A1 (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20050295A1 (it) * | 2005-04-29 | 2006-10-30 | Magneti Marelli Powertrain Spa | Inietore di carburante con attuatore elettromagnetico |
US7628137B1 (en) * | 2008-01-07 | 2009-12-08 | Mcalister Roy E | Multifuel storage, metering and ignition system |
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 |
US8635985B2 (en) | 2008-01-07 | 2014-01-28 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
US8413634B2 (en) * | 2008-01-07 | 2013-04-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters with conductive cable assemblies |
US8074625B2 (en) * | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
US8225768B2 (en) * | 2008-01-07 | 2012-07-24 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
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 |
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 |
DE102008017913A1 (de) * | 2008-04-08 | 2009-10-15 | Alfons Kenter | Düse zum Zerstäuben einer Flüssigkeit |
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 |
CA2772043C (en) * | 2009-08-27 | 2014-01-07 | Mcalister Technologies, Llc | Ceramic insulator and methods of use and manufacture thereof |
MX2012006565A (es) | 2009-12-07 | 2012-08-23 | Mcalister Technologies Llc | Sistema de control adaptable para inyectores de combustible. y dispositivos de encendido. |
AU2010328632B2 (en) | 2009-12-07 | 2014-12-18 | Mcalister Technologies, Llc | An injector for introducing fuel into a combustion chamber and for introducing and igniting fuel at an interface with a combustion chamber |
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 |
EP2534364A4 (de) | 2010-02-13 | 2014-04-23 | Mcalister Technologies Llc | Brennstoffeinspritzbaugruppen mit akustischen kraftverstärkern sowie verfahren zu ihrer verwendung und herstellung |
EP2534347B1 (de) | 2010-02-13 | 2016-05-04 | McAlister, Roy Edward | Verfahren und systeme zur adaptiven kühlung von verbrennungskammern in motoren |
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 |
WO2012112615A1 (en) | 2011-02-14 | 2012-08-23 | 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 |
WO2013025626A1 (en) | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Acoustically actuated flow valve assembly including a plurality of reed valves |
US8851047B2 (en) | 2012-08-13 | 2014-10-07 | Mcallister Technologies, Llc | Injector-igniters with variable gap electrode |
US8746197B2 (en) | 2012-11-02 | 2014-06-10 | Mcalister Technologies, Llc | Fuel injection systems with enhanced corona burst |
US9169821B2 (en) | 2012-11-02 | 2015-10-27 | Mcalister Technologies, Llc | Fuel injection systems with enhanced corona burst |
US9169814B2 (en) | 2012-11-02 | 2015-10-27 | Mcalister Technologies, Llc | Systems, methods, and devices with enhanced lorentz thrust |
US9115325B2 (en) | 2012-11-12 | 2015-08-25 | Mcalister Technologies, Llc | Systems and methods for utilizing alcohol fuels |
US9091238B2 (en) | 2012-11-12 | 2015-07-28 | Advanced Green Technologies, Llc | Systems and methods for providing motion amplification and compensation by fluid displacement |
US9200561B2 (en) | 2012-11-12 | 2015-12-01 | Mcalister Technologies, Llc | Chemical fuel conditioning and activation |
US9309846B2 (en) | 2012-11-12 | 2016-04-12 | Mcalister Technologies, Llc | Motion modifiers for fuel injection systems |
US8800527B2 (en) | 2012-11-19 | 2014-08-12 | Mcalister Technologies, Llc | Method and apparatus for providing adaptive swirl injection and ignition |
US9194337B2 (en) | 2013-03-14 | 2015-11-24 | Advanced Green Innovations, LLC | High pressure direct injected gaseous fuel system and retrofit kit incorporating the same |
US9562500B2 (en) | 2013-03-15 | 2017-02-07 | Mcalister Technologies, Llc | Injector-igniter with fuel characterization |
US8820293B1 (en) | 2013-03-15 | 2014-09-02 | Mcalister Technologies, Llc | Injector-igniter with thermochemical regeneration |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2725135A1 (de) | 1977-06-03 | 1978-12-14 | Bosch Gmbh Robert | Elektromagnetisches kraftstoff- einspritzventil fuer brennkraftmaschinen |
JPS6056165A (ja) | 1983-09-05 | 1985-04-01 | Toyota Central Res & Dev Lab Inc | 間欠式渦巻噴射弁 |
US5299919A (en) * | 1991-11-01 | 1994-04-05 | Paul Marius A | Fuel injector system |
DE19513053A1 (de) | 1995-04-07 | 1996-10-10 | Stihl Maschf Andreas | Kraftstoffeinspritzdüse mit integriertem Ventil |
JPH09250428A (ja) | 1996-03-19 | 1997-09-22 | Toyota Motor Corp | スワール流強度可変式燃料噴射弁 |
DE19625059A1 (de) | 1996-06-22 | 1998-01-02 | Bosch Gmbh Robert | Einspritzventil, insbesondere zum direkten Einspritzen von Kraftstoff in einen Brennraum eines Verbrennungsmotors |
DE19843895B4 (de) | 1998-09-24 | 2005-08-11 | Siemens Ag | Kraftstoffeinspritzdüse mit optimierter Spritzlochkanalgeometrie |
DE19907899A1 (de) | 1999-02-24 | 2000-08-31 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
JP4221898B2 (ja) | 2000-02-29 | 2009-02-12 | 株式会社デンソー | 燃料噴射ノズル |
DE10049517B4 (de) * | 2000-10-06 | 2005-05-12 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
-
2002
- 2002-02-26 DE DE10208223A patent/DE10208223A1/de not_active Withdrawn
- 2002-12-23 WO PCT/DE2002/004736 patent/WO2003072931A1/de active IP Right Grant
- 2002-12-23 JP JP2003571590A patent/JP4308670B2/ja not_active Expired - Fee Related
- 2002-12-23 EP EP02795043A patent/EP1481161B1/de not_active Expired - Lifetime
- 2002-12-23 AT AT02795043T patent/ATE387578T1/de not_active IP Right Cessation
- 2002-12-23 DE DE50211802T patent/DE50211802D1/de not_active Expired - Fee Related
- 2002-12-23 US US10/475,968 patent/US7032845B2/en not_active Expired - Fee Related
- 2002-12-23 KR KR10-2004-7013170A patent/KR20040089666A/ko not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO03072931A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50211802D1 (de) | 2008-04-10 |
JP2005518500A (ja) | 2005-06-23 |
JP4308670B2 (ja) | 2009-08-05 |
KR20040089666A (ko) | 2004-10-21 |
US20040149839A1 (en) | 2004-08-05 |
EP1481161B1 (de) | 2008-02-27 |
US7032845B2 (en) | 2006-04-25 |
ATE387578T1 (de) | 2008-03-15 |
DE10208223A1 (de) | 2003-10-30 |
WO2003072931A1 (de) | 2003-09-04 |
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