DE102006041476A1 - Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings - Google Patents
Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings Download PDFInfo
- Publication number
- DE102006041476A1 DE102006041476A1 DE200610041476 DE102006041476A DE102006041476A1 DE 102006041476 A1 DE102006041476 A1 DE 102006041476A1 DE 200610041476 DE200610041476 DE 200610041476 DE 102006041476 A DE102006041476 A DE 102006041476A DE 102006041476 A1 DE102006041476 A1 DE 102006041476A1
- Authority
- DE
- Germany
- Prior art keywords
- jet nozzle
- fuel injection
- valve
- holes
- fan jet
- 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- Withdrawn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
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
- F02M61/1853—Orifice plates
-
- 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
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
Stand der TechnikState of the art
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The The invention is based on a fuel injection valve after Genus of the main claim.
Aus
der
Aus
der
Bekannt
ist zudem noch ein Brennstoffeinspritzventil zum direkten Einspritzen
von Brennstoff in einen Brennraum einer Brennkraftmaschine aus der
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass auf einfache Art und Weise eine gleichmäßige Feinstzerstäubung des Brennstoffs erreicht wird, wobei eine besonders hohe Aufbereitungsqualität und Zerstäubungsgüte mit sehr kleinen Fluidtröpfchen erzielt wird. In idealer Weise besitzt die Multi-Fächerstrahl-Düse am stromabwärtigen Ende des Brennstoffeinspritzventils eine Vielzahl von sehr kleinen Abspritzöffnungen, die zu jeweils konvergent verlaufenden Lochpaaren zusammengefasst sind, so dass es zu Strahlkollisionen stromabwärts der Multi-Fächerstrahl-Düse kommt, in deren Folge der abzuspritzende Brennstoff in eine Vielzahl von räumlich versetzten Fächerstrahlen aufgespreizt wird und damit Brennstoffsprays mit extrem kleinen Brennstofftröpfchen mit einem Sauter Mean Diameter (SMD) von ca. 20 μm abspritzbar sind. Auf diese Weise kann sehr wirkungsvoll die HC-Emission der Brennkraftmaschine deutlich reduziert werden.The Fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage that in a simple way a uniform atomizing the fuel is reached, with a particularly high quality of preparation and atomization quality with very small fluid droplets is achieved. Ideally, the multi-fan jet nozzle is at the downstream end the fuel injector a variety of very small spray orifices, which are combined into convergent pairs of holes are such that jet collisions occur downstream of the multi-fan jet nozzle, as a result, the fuel to be injected into a variety of spatial staggered fan beams is spread and thus fuel sprays with extremely small fuel droplets with A Sauter Mean Diameter (SMD) of about 20 microns can be sprayed off. In this way can very effectively the HC emission of the engine significantly be reduced.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments and improvements of the claim 1 specified fuel injector possible.
In idealer Weise handelt es sich bei der Multi-Fächerstrahl-Düse um eine Mikrolochscheibe, die eine Vielzahl von sehr kleinen Abspritzöffnungen aufweist, deren Durchmesser ca. 0,08 mm bis 0,15 mm beträgt.In Ideally, the multi-fan jet nozzle is one Micro-hole disc, which has a variety of very small spray holes whose diameter is about 0.08 mm to 0.15 mm.
Über die Lochpaare aus Abspritzöffnungen werden eine Vielzahl von Fächerstrahlen erzeugt, die divergent die Multi-Fächerstrahl-Düse verlassen und mit Abstand zur Multi-Fächerstrahl-Düse in kleine Tröpfchen zerfallen. In idealer Weise erfolgen stromabwärts der Multi-Fächerstrahl-Düse Frontalkollisionen von Teilströmen des Fluids aus den Lochpaaren. Als Reaktion entstehen fächerartige Aufspreizungen der Strömung.About the Pairs of holes are sprayed out a variety of fan beams which divergent leave the multi-fan jet nozzle and disintegrate into small droplets at a distance from the multi-fan jet nozzle. Ideally, head collisions occur downstream of the multi-fan jet nozzle of partial flows the fluid from the pairs of holes. In response, fan-shaped arise Spreading the flow.
In vorteilhafter Weise sind die Lochpaare aus zwei Abspritzöffnungen der Multi-Fächerstrahl-Düse derart verteilt, dass sie in einer Richtung betrachtet teilweise in gleichen Ebenen liegen und um 90° gedreht betrachtet versetzt zueinander sind.In Advantageously, the pairs of holes from two injection openings the multi-fan jet nozzle so distributed, that they are viewed in one direction partially in the same Layers lie and rotated by 90 ° considered staggered to each other.
Zeichnungdrawing
Ausführungsbeispiele
der Erfindung sind in der Zeichnung vereinfacht dargestellt und
in der nachfolgenden Beschreibung näher erläutert. Es zeigen
Beschreibung der AusführungsbeispieleDescription of the embodiments
In
der
Die
Betätigung
des Brennstoffeinspritzventils erfolgt in bekannter Weise, beispielsweise
elektromagnetisch. Eine Betätigung
des Brennstoffeinspritzventils mit einem piezoelektrischen oder
magnetostriktiven Aktor ist jedoch ebenso denkbar. Zur axialen Bewegung
der Ventilnadel
In
dem stromabwärts
liegenden Ende des Ventilsitzträgers
Die
Einschubtiefe des Ventilsitzkörpers
In
dem Ventilsitzkörper
Pro
Multi-Fächerstrahl-Düse
Die
Strahleigenschaften der Multi-Fächerstrahl-Düse
In
der
Die
Ausbildung der Multi-Fächerstrahl-Düse
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610041476 DE102006041476A1 (en) | 2006-09-05 | 2006-09-05 | Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610041476 DE102006041476A1 (en) | 2006-09-05 | 2006-09-05 | Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006041476A1 true DE102006041476A1 (en) | 2008-03-06 |
Family
ID=38989689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610041476 Withdrawn DE102006041476A1 (en) | 2006-09-05 | 2006-09-05 | Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006041476A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2390491A1 (en) * | 2010-05-28 | 2011-11-30 | KW Technologie GmbH & Co. KG | Device for injecting fuel into a combustion chamber |
CN103506245A (en) * | 2012-06-26 | 2014-01-15 | 玛珂***分析和开发有限公司 | Method for coating a component and a fan jet nozzle |
DE102016222606A1 (en) | 2016-11-17 | 2018-05-17 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
-
2006
- 2006-09-05 DE DE200610041476 patent/DE102006041476A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2390491A1 (en) * | 2010-05-28 | 2011-11-30 | KW Technologie GmbH & Co. KG | Device for injecting fuel into a combustion chamber |
EP2650527A1 (en) * | 2010-05-28 | 2013-10-16 | KW Technologie GmbH & Co. KG | Device for injecting fuel into a combustion chamber |
CN103506245A (en) * | 2012-06-26 | 2014-01-15 | 玛珂***分析和开发有限公司 | Method for coating a component and a fan jet nozzle |
DE102016222606A1 (en) | 2016-11-17 | 2018-05-17 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
WO2018091212A1 (en) | 2016-11-17 | 2018-05-24 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20130527 |
|
R084 | Declaration of willingness to licence | ||
R016 | Response to examination communication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |