DE10307932A1 - Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings - Google Patents
Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings Download PDFInfo
- Publication number
- DE10307932A1 DE10307932A1 DE2003107932 DE10307932A DE10307932A1 DE 10307932 A1 DE10307932 A1 DE 10307932A1 DE 2003107932 DE2003107932 DE 2003107932 DE 10307932 A DE10307932 A DE 10307932A DE 10307932 A1 DE10307932 A1 DE 10307932A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- injection valve
- valve according
- spray openings
- valve seat
- 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.)
- Withdrawn
Links
- 239000007921 spray Substances 0.000 title claims abstract description 33
- 239000000446 fuel Substances 0.000 title claims description 62
- 238000002347 injection Methods 0.000 title claims description 22
- 239000007924 injection Substances 0.000 title claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008240 homogeneous mixture Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000013598 vector Substances 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
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1846—Dimensional characteristics of discharge 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
- 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
- F02M51/0671—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 having an elongated valve body attached thereto
-
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
-
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
-
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/188—Spherical or partly spherical shaped valve member ends
-
- 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
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/505—Adjusting spring tension by sliding spring seats
-
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
-
- 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
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)
Abstract
Description
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The Invention is based on a fuel injector according to the Genus of the main claim.
Aus
der
Nachteilig an dem aus der obengenannten Druckschrift bekannten Brennstoffeinspritzventil ist insbesondere die mangelhafte Strahlaufbereitung der in den Brennraum der Brennkraftmaschine eingespritzten Brennstoffstrahle. Das Gemisch bleibt inhomogen, zu fett im Kernbereich und zu mager in der Peripherie, und verhindert damit ein effektives Brennverfahren.adversely on the fuel injector known from the above publication is in particular the poor preparation of the jet in the combustion chamber the fuel jet injected into the internal combustion engine. The mixture remains inhomogeneous, too fat in the core area and too lean in the periphery, and thus prevents an effective burning process.
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Abspritzöffnungen so angebracht sind, daß ihre Länge gegenüber ihrem Durchmesser reduziert ist, indem eine Nut an einer inneren Stirnseite des Ventilsitzkörpers im Bereich der Abspritzöffnungen vorgesehen ist. Dadurch kann eine verbesserte Strahlaufbereitung und ein homogeneres Gemisch mit verbesserten Verbrennungseigenschaften und Abgaswerten erzielt werden. Durch die räumlich eng begrenzte Reduzierung der Wandstärke ist die Druckfestigkeit des Brennstoffeinspritzventils nicht beeinträchtigt, wodurch es insbesondere für die Benzin-Direkteinspritzung geeignet ist.The fuel injector according to the invention in contrast, with the characteristic features of the main claim Advantage that the spray openings are so attached that their length is opposite their Diameter is reduced by a groove on an inner face of the valve seat body in the area of the spray openings is provided. This can improve the beam preparation and a more homogeneous mixture with improved combustion properties and exhaust gas values can be achieved. Due to the spatially limited reduction the wall thickness the pressure resistance of the fuel injector is not impaired, making it especially for direct petrol injection is suitable.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By those in the subclaims listed activities are advantageous developments of the specified in the main claim Fuel injector possible.
Vorteilhafterweise wird die Nut bei der Herstellung des Ventilsitzkörpers gemeinsam mit diesem aus einem Werkstück gedreht.advantageously, the groove is made together with the valve seat body during manufacture a workpiece turned.
Die Abspritzöffnungen können vorteilhafterweise innerhalb der Nut beliebig angeordnet sein. Die Abspritzöffnungen können ebenso beliebig orientiert, geneigt und auf ovalen, kreisförmigen und ungleichmäßig geformten, konzentrischen oder nicht konzentrischen Ringen angeordnet sein.The spray openings can advantageously be arranged anywhere within the groove. The spray orifices can just as arbitrarily oriented, inclined and on oval, circular and irregularly shaped, concentric or non-concentric rings.
Weiterhin kann die Nut auch in Form einer Sicke ausgebildet und in den Ventilsitzkörper eingeprägt, erodiert, elysiert oder geätzt sein.Farther the groove can also be designed in the form of a bead and stamped, eroded into the valve seat body, anodized or etched his.
Kegelöffnungswinkel und Neigungswinkel der Gemischwolke gegenüber einer Achse des Brennstoffeinspritzventils sind vorteilhafterweise ebenfalls beliebig.Cone angle and angle of inclination of the mixture cloud with respect to an axis of the fuel injector are advantageously also arbitrary.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:On embodiment the invention is shown in simplified form in the drawing and in the description below explained. Show it:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Das
Brennstoffeinspritzventil
Der
Ventilschließkörper
Der
Ventilsitzkörper
Der
Düsenkörper
Die
Ventilnadel
Abströmseitig
des Ankers
In
der Ventilnadelführung
Erfindungsgemäß weist
das Brennstoffeinspritzventil
Im
Ruhezustand des Brennstoffeinspritzventils
Wird
der Spulenstrom abgeschaltet, fällt
der Anker
Wie
bereits in der Beschreibung zu
Das
Verhältnis
L/D ist dabei vorzugsweise kleiner oder höchstens gleich 1,3, die Länge L der Abspritzöffnungen
Der
Durchmesser D der Abspritzöffnungen
0,3 ≤ c ≤ 0,6 [mm2·MPa0,5]
beträgt. Dabei ist n > 1 die Anzahl der Abspritzöffnungen
0.3 ≤ c ≤ 0.6 [mm 2 · MPa 0.5 ]
is. Here n> 1 is the number of spray openings
Dabei
ist weder die Anzahl der Abspritzöffnungen
Die
Einbringung der Nut
Die
Erfindung ist nicht auf das dargestellte Ausführungsbeispiele beschränkt und
z. B. auch für teilkreisförmige Nuten
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003107932 DE10307932A1 (en) | 2003-02-25 | 2003-02-25 | Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003107932 DE10307932A1 (en) | 2003-02-25 | 2003-02-25 | Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10307932A1 true DE10307932A1 (en) | 2004-10-28 |
Family
ID=33038721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003107932 Withdrawn DE10307932A1 (en) | 2003-02-25 | 2003-02-25 | Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10307932A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014022624A1 (en) * | 2012-08-01 | 2014-02-06 | 3M Innovative Properties Company | Targeting of fuel output by off-axis directing of nozzle output streams |
| WO2016075088A1 (en) * | 2014-11-11 | 2016-05-19 | Robert Bosch Gmbh | An injection valve having movable valve member |
| EP3156641A1 (en) * | 2015-10-14 | 2017-04-19 | Continental Automotive GmbH | Injector for injecting fluid |
| WO2019110167A1 (en) * | 2017-12-04 | 2019-06-13 | Robert Bosch Gmbh | Valve for metering in a fluid, in particular fuel injection valve |
| US10590899B2 (en) | 2012-08-01 | 2020-03-17 | 3M Innovative Properties Company | Fuel injectors with improved coefficient of fuel discharge |
-
2003
- 2003-02-25 DE DE2003107932 patent/DE10307932A1/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014022624A1 (en) * | 2012-08-01 | 2014-02-06 | 3M Innovative Properties Company | Targeting of fuel output by off-axis directing of nozzle output streams |
| CN104736834A (en) * | 2012-08-01 | 2015-06-24 | 3M创新有限公司 | Orientation of fuel output by directing nozzle output stream off-axis |
| JP2015523501A (en) * | 2012-08-01 | 2015-08-13 | スリーエム イノベイティブ プロパティズ カンパニー | Directing fuel discharge by directing the flow out of the nozzle off-axis |
| JP2019116894A (en) * | 2012-08-01 | 2019-07-18 | スリーエム イノベイティブ プロパティズ カンパニー | Directing fuel discharge by giving off-axis direction to stream exiting from nozzle |
| US10590899B2 (en) | 2012-08-01 | 2020-03-17 | 3M Innovative Properties Company | Fuel injectors with improved coefficient of fuel discharge |
| WO2016075088A1 (en) * | 2014-11-11 | 2016-05-19 | Robert Bosch Gmbh | An injection valve having movable valve member |
| EP3156641A1 (en) * | 2015-10-14 | 2017-04-19 | Continental Automotive GmbH | Injector for injecting fluid |
| WO2019110167A1 (en) * | 2017-12-04 | 2019-06-13 | Robert Bosch Gmbh | Valve for metering in a fluid, in particular fuel injection valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1379773B1 (en) | Fuel injection valve | |
| EP1434941B1 (en) | Fuel injection valve | |
| DE10049518A1 (en) | Fuel injector | |
| EP1599669A1 (en) | Fuel injection valve | |
| EP1395749B1 (en) | Fuel injection valve | |
| EP1309793A1 (en) | Fuel injection valve | |
| EP1623109A1 (en) | Fuel injection valve | |
| DE10118164A1 (en) | Fuel injection valve has needle pressurizing readjusting spring, actuator with valve closure body and seating surface, recess in body, injection holes, weld seam and valve | |
| EP1474604B1 (en) | Fuel injection valve | |
| EP1761701B1 (en) | Fuel-injection system | |
| DE10123859B4 (en) | Fuel injector | |
| DE10307932A1 (en) | Fuel injection valve for petrol engine, has valve plug with end surface facing valve seat with groove including array of spray openings | |
| DE10050751A1 (en) | Fuel injection valve for IC engines has swirl-generating device formed by swirl channels in upstream side of valve seat body | |
| DE10354467A1 (en) | Fuel injector | |
| EP1260703B1 (en) | Fuel injection valve | |
| EP1328721B1 (en) | Fuel-injection valve | |
| EP1195516A2 (en) | Fuel injection valve | |
| EP1423604B1 (en) | Fuel injection valve | |
| DE10304866A1 (en) | Motor vehicle internal combustion engine fuel injection valve has injection openings formed in valve seat with radial seating extending above them | |
| WO2019110167A1 (en) | Valve for metering in a fluid, in particular fuel injection valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8105 | Search report available | ||
| 8139 | Disposal/non-payment of the annual fee |