DE102006027614A1 - Injection injector for internal combustion engines - Google Patents
Injection injector for internal combustion engines Download PDFInfo
- Publication number
- DE102006027614A1 DE102006027614A1 DE102006027614A DE102006027614A DE102006027614A1 DE 102006027614 A1 DE102006027614 A1 DE 102006027614A1 DE 102006027614 A DE102006027614 A DE 102006027614A DE 102006027614 A DE102006027614 A DE 102006027614A DE 102006027614 A1 DE102006027614 A1 DE 102006027614A1
- Authority
- DE
- Germany
- Prior art keywords
- injection injector
- injector according
- filter
- support sleeve
- sleeve
- 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
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M2200/18—Fuel-injection apparatus having means for maintaining safety 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
-
- 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
- F02M2200/90—Selection of particular materials
-
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9053—Metals
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
Abstract
Description
Die Erfindung betrifft einen Einspritzinjektor für Brennkraftmaschinen gemäß dem Oberbegriff des Anspruches 1.The The invention relates to an injection injector for internal combustion engines according to the preamble of Claim 1.
Bei
einem aus der
Das Sitzstück ist flächig dichtend gegen ein plattenförmiges Übergangselement als ein Modul des axial modular aufgebauten und zusammengespannten Injektorgehäuses abgestützt. Die Abstützung erfolgt über eine Stützhülse, die zwischen einer Schulter der Buchse und einer Schulter der die Buchse aufnehmenden Gehäusebohrung liegt und die, bezogen auf das axial zusammengespannte Injektorgehäuse, bis in den Bereich ihrer Werkstoff-Quetschgrenze toleranzausgleichend verspannbar ist.The seat piece is flat sealing against a plate-shaped transition element as a module of the axially modular and clamped together injector supported. The support over a support sleeve that between a shoulder of the socket and a shoulder of the socket receiving housing bore is located and, based on the axially clamped injector, until Tolerance compensating in the area of their material crushing limit is clamped.
Aus
der
Die Düsennadel durchsetzt mit ihrem Schaft den Sperrkolben und ist rückseitig im Gehäuse geführt und gegen einen Steuerkolben abgestützt, der Teil der Abgrenzung des Steuerraumes ist. Dieser Steuerraum, und der rückseitig zum Sperrkolben liegende und in Richtung auf den Steuerraum durch die gehäuseseitige Führung des Düsennadelschaftes begrenzte Raum, sind hochdruckbeaufschlagt. Über ein Steuerventil ist der Steuerraum mit der Niederdruckseite zu verbinden, um die Düsennadel druckabhängig in ihre Öffnungsstellung anzuheben und eine Einspritzung zu ermöglichen.The nozzle needle interspersed with its shaft the locking piston and is back in the case guided and supported against a control piston, the part of the delimitation of the control room is. This control room, and the back to the locking piston lying and in the direction of the control room the housing side guide of the nozzle needle shaft limited Space, are pressurized. About a control valve is the Control chamber to connect to the low pressure side to the nozzle needle pressure dependent in their open position lift and allow an injection.
Die für eine Einspritzung maximal mögliche Einspritzmenge ist durch das Volumen vorgegeben, das zwischen Düsennadelsitz und Sperrkolben in dessen federbelasteter, der Schließstellung der Düsennadel entsprechender, anschlagbegrenzter Ausgangslage eingeschlossen ist. Öffnet die Düsennadel, so verringert sich dieses Volumen entsprechend der eingespritzten Menge und der Sperrkolben verschiebt sich druckbeaufschlagt entgegen der Federbelastung in Richtung auf seine den Durchfluss zum Düsennadelsitz versperrende Sperrlage. Diese wird im Regelbetrieb aber nicht erreicht, sondern nur, wenn mehr Kraftstoff – als für einen ungestörten Regelbetrieb vorgesehen – über die Düsenöffnungen ausläuft. Im Regelbetrieb verbleibt zwischen Sperrkolben und Düsennadel selbst nach Schließen der Düsennadel ein Restvolumen, das eine Verschiebung des Sperrkolbens in seine Sperrlage ausschließt und das nachfolgend durch gedrosselten Zulauf von der Hochdruckseite aufgefüllt wird, so dass der Sperrkolben ergänzend zur Federabstützung druckabhängig wieder in seine Ausgangslage für eine jeweilige weitere Einspritzung verschoben wird.The for one Injection maximum possible injection quantity is determined by the volume between the nozzle needle seat and locking piston in the spring-loaded, the closed position of the nozzle needle corresponding, stop-limited starting position is included. Open the Nozzle needle, so this volume decreases according to the injected Quantity and the locking piston moves against pressurized the spring load towards its the flow to the nozzle needle seat blocking position. However, this is not achieved in normal operation, but only if more fuel - than for undisturbed regular operation provided - over the Nozzle openings expires. in the Regular operation remains between the locking piston and the nozzle needle even after closing the nozzle needle a residual volume, which is a displacement of the locking piston in his Lock position excludes followed by throttled feed from the high pressure side filled is, so that the locking piston in addition to the spring support pressure-dependent again into his starting position for a respective further injection is shifted.
Weiter
ist aus der
Weiter
ist es aus der
Der Erfindung liegt die Aufgabe zugrunde, in einem Einspritzinjektor der eingangs genannten Art ohne wesentlichen Zusatzaufwand eine weitere Funktion zu realisieren.Of the Invention is based on the object in an injection injector of the type mentioned without significant additional expense to realize another function.
Gemäß der Erfindung wird dies mit den Merkmalen des Anspruches 1 erreicht, demzufolge die Stützhülse als Kraftstofffilter mit der Hülsenwand zugeordneter Filterfläche ausgebildet ist.According to the invention, this is with the Characteristics of claim 1 achieved, according to which the support sleeve is designed as a fuel filter with the sleeve wall associated filter surface.
Neben der Stützfunktion übernimmt die Hülse damit auch eine Filterfunktion, wobei diese Filterfunktion im Rahmen der Erfindung ohne Zusatzbauteile realisiert werden kann, wenn die Hülsenwand zumindest bereichsweise entsprechend feinporig perforiert ausgebildet wird, beispielsweise durch mittels Laserstrahl eingebrachter Bohrungen. Die Bohrungen können hierfür willkürlich über die Hülsenwand verteilt sein oder auch in Bohrungsmustern, so dass die Hülsenwand beispielsweise in Längsrichtung verlaufende und/oder auch in Umfangsrichtung verlaufende Filterstreifen aufweist. Die Anordnung von Filterzonen beispielsweise in Form von Filterstreifen über den Umfang der Hülsenwand kann im Rahmen der Erfindung auch genutzt werden, die Quetschgrenze der Hülse in gewünschter Weise zu beeinflussen, worauf auch durch die Querschnittsform der Bohrungen Einfluss genommen werden kann.Next the support function takes over the sleeve thus also a filter function, whereby this filter function in the frame the invention can be implemented without additional components, if the Sleeve wall at least partially formed according to fine-pored perforated, for example, by means of laser beam bores. The holes can therefor arbitrarily over the sleeve wall be distributed or even in bore patterns, leaving the sleeve wall for example, in the longitudinal direction extending and / or extending in the circumferential direction of the filter strip having. The arrangement of filter zones, for example in the form of Over the filter strip the circumference of the sleeve wall can also be used in the invention, the squeeze limit the sleeve in the desired Ways to influence, what also by the cross-sectional shape of the Drilling can be influenced.
Im Rahmen der Erfindung liegt es des Weiteren auch, die Hülse insgesamt, oder auch lediglich im Bereich ihrer Filterzonen aus schaumartig porösen Materialien, beispielsweise aus offenporigen Metallschäumen herzustellen, so dass sich bereits durch die Materialwahl die entsprechende Filterfunktion zusätzlich erreichen lässt. Weiter kommen für die Stützhülse insgesamt, oder auch lediglich deren Filterflächen bildende Bereiche als Filterzonen, auch porös gesinterte, insbesondere metallische Materialien, in Frage, so dass die im Hinblick auf die Doppelfunktion – Stützen und Filtern – erforderliche Ausbildung der Hülse gegebenenfalls ohne zusätzlichen Bearbeitungsaufwand zur Herstellung der porösen Filterstruktur möglich wird.in the Furthermore, it is also within the scope of the invention, the sleeve as a whole, or even in the area of their filter zones of foam-like porous materials, For example, to produce open-celled metal foams, so that Already by the choice of material the corresponding filter function additionally can achieve. Next come for the support sleeve in total, or only their filter surfaces forming areas as Filter zones, also porous sintered, In particular, metallic materials, in question, so that in terms of the double function - supports and Filter - required Formation of the sleeve optionally without additional Processing costs for the production of the porous filter structure is possible.
Im Rahmen der Erfindung liegt es aber auch, die Hülsenwand mit Durchbrechungen zu versehen, die einen ungefilterten Kraftstoffdurchtritt ermöglichen und der Hülsenwand außen- und/oder innenseitig eine filternde Auflage zuzuordnen. Eine solche filternde Auflage kann beispielsweise durch eine aufgesinterte Filterschicht gebildet sein, oder auch durch einen der Stützhülse außen- oder innenseitig zur Hülsenwand zugeordneten Filtereinsatz. Ein solcher Filtereinsatz kann als Filterhülse wiederum in vorbeschriebener Weise gestaltet, insbesondere aus filternden Materialien wie poröse Schäume, aufgebaut sein.in the However, it is also within the scope of the invention, the sleeve wall with openings to provide that allow an unfiltered fuel passage and the sleeve wall outside and / or inside assign a filtering edition. Such a filtering pad can for example be formed by a sintered filter layer be, or by one of the support sleeve outside or inside to the sleeve wall associated filter cartridge. Such a filter cartridge can turn as a filter sleeve designed in the manner described above, in particular from filtering Materials like porous foams, be constructed.
Ein solcher Filtereinsatz kann beispielsweise durch ein in die Stützhülse eingesetztes rohrförmiges Filterelement gebildet sein, oder auch ein zur Filterhülse umschließendes rohrförmiges Filterelement, wobei insbesondere bei einer in Anströmrichtung auf die Hülsenwand vorgesehenen Filteranordnung die Filterstruktur als solche über die Hülsenwand im Wesentlichen getragen und damit auch teilweise zur Hülsenwand abgesetzt verlaufend ausgebildet sein kann.One Such filter cartridge can, for example, by an inserted into the support sleeve tubular filter element be formed, or a filter sleeve enclosing the tubular filter element, wherein especially in the direction of flow on the sleeve wall provided filter assembly, the filter structure as such on the sleeve wall essentially worn and thus partly to the sleeve wall discontinued running can be formed.
Im Rahmen der Erfindung stellt es eine weitere einfache Lösung dar, die Filterfunktion mit einem auf die Stützhülse aufgezogenen Filterstrumpf zu realisieren, der sich bevorzugt elastisch verspannt auf der Stützhülse abstützt.in the Within the scope of the invention, it represents a further simple solution the filter function with a mounted on the support sleeve filter sock to realize, preferably elastically braced supported on the support sleeve.
Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Unteransprüchen. Ferner wird die Erfindung anhand der Zeichnungen näher erläutert, die ein erfindungsgemäßes Ausführungsbeispiel im Schema zeigen, und zwar inFurther Details and features of the invention will become apparent from the dependent claims. Further The invention will be explained in more detail with reference to the drawings, which is an inventive embodiment in the scheme show, in
Der
in den Figuren dargestellte Einspritzinjektor
Der
als Mengenbegrenzungsventil
Die
Bohrung
In
dem von der Stützhülse
Die
Arbeitsweise des Mengenbegrenzungsventiles
Das
den Einsatz
Grundsätzlich können die
Bohrungen
Weitere
Möglichkeiten
im Rahmen der Erfindung liegen darin, die Stützhülse
Somit ist über die Stützhülse im Wesentlichen ohne Zusatzaufwand und ohne zusätzlichen Raumbedarf auch die Filterfunktion integriert in den Einspritzinjektor zu realisieren.Consequently is over the support sleeve substantially without additional effort and without additional space requirements also to realize the filter function integrated in the injection injector.
Claims (20)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006027614A DE102006027614B4 (en) | 2006-06-13 | 2006-06-13 | Injection injector for internal combustion engines |
EP07764607A EP2027386B1 (en) | 2006-06-13 | 2007-06-11 | Injector for internal combustion engines |
PCT/EP2007/005121 WO2007144122A1 (en) | 2006-06-13 | 2007-06-11 | Injector for internal combustion engines |
JP2009514687A JP5189087B2 (en) | 2006-06-13 | 2007-06-11 | Fuel injection device for internal combustion engine |
AT07764607T ATE479019T1 (en) | 2006-06-13 | 2007-06-11 | INJECTION INJECTOR FOR COMBUSTION ENGINES |
KR1020087029488A KR101390951B1 (en) | 2006-06-13 | 2008-12-02 | Injector for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006027614A DE102006027614B4 (en) | 2006-06-13 | 2006-06-13 | Injection injector for internal combustion engines |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006027614A1 true DE102006027614A1 (en) | 2007-12-27 |
DE102006027614B4 DE102006027614B4 (en) | 2009-02-05 |
Family
ID=38537578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006027614A Active DE102006027614B4 (en) | 2006-06-13 | 2006-06-13 | Injection injector for internal combustion engines |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2027386B1 (en) |
JP (1) | JP5189087B2 (en) |
KR (1) | KR101390951B1 (en) |
AT (1) | ATE479019T1 (en) |
DE (1) | DE102006027614B4 (en) |
WO (1) | WO2007144122A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2354531A1 (en) * | 2010-01-19 | 2011-08-10 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
WO2013111008A1 (en) * | 2012-01-26 | 2013-08-01 | Robert Bosch Gmbh | Device for injecting fuel into the combustion chamber of an internal combustion engine |
EP2385238A3 (en) * | 2010-05-07 | 2014-11-26 | Liebherr-Machines Bulle SA | High pressure injector |
WO2015183423A1 (en) * | 2014-05-29 | 2015-12-03 | Caterpillar Inc. | Flow limiter and filter assembly for a fuel system of an engine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010156256A (en) * | 2008-12-26 | 2010-07-15 | Denso Corp | High pressure pump |
JP5176947B2 (en) * | 2008-12-26 | 2013-04-03 | 株式会社デンソー | High pressure pump |
KR101695092B1 (en) | 2015-06-04 | 2017-01-10 | 주식회사 현대케피코 | Injector having a structure preventing from wavering of a needle |
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DE10355309A1 (en) * | 2003-11-27 | 2005-06-30 | Siemens Ag | Fuel delivery unit |
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-
2006
- 2006-06-13 DE DE102006027614A patent/DE102006027614B4/en active Active
-
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- 2007-06-11 EP EP07764607A patent/EP2027386B1/en active Active
- 2007-06-11 JP JP2009514687A patent/JP5189087B2/en active Active
- 2007-06-11 WO PCT/EP2007/005121 patent/WO2007144122A1/en active Application Filing
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-
2008
- 2008-12-02 KR KR1020087029488A patent/KR101390951B1/en active IP Right Grant
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DE4421881A1 (en) * | 1994-06-23 | 1996-01-04 | Bosch Gmbh Robert | Valve needle |
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DE10212002C1 (en) * | 2002-03-18 | 2003-08-21 | Orange Gmbh | Fuel injector for IC engine has support sleeve around insert in housing bore for ensuring seal between coupling channel sections of modular injector |
DE10334785A1 (en) * | 2003-07-30 | 2005-02-24 | Robert Bosch Gmbh | Fuel injection valve and method for its assembly |
DE10355309A1 (en) * | 2003-11-27 | 2005-06-30 | Siemens Ag | Fuel delivery unit |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2354531A1 (en) * | 2010-01-19 | 2011-08-10 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
EP2385238A3 (en) * | 2010-05-07 | 2014-11-26 | Liebherr-Machines Bulle SA | High pressure injector |
WO2013111008A1 (en) * | 2012-01-26 | 2013-08-01 | Robert Bosch Gmbh | Device for injecting fuel into the combustion chamber of an internal combustion engine |
KR20140108581A (en) * | 2012-01-26 | 2014-09-11 | 로베르트 보쉬 게엠베하 | Device for injecting fuel into the combustion chamber of an internal combustion engine |
US10371111B2 (en) | 2012-01-26 | 2019-08-06 | Robert Bosch Gmbh | Device for injecting fuel into the combustion chamber of an internal combustion engine |
WO2015183423A1 (en) * | 2014-05-29 | 2015-12-03 | Caterpillar Inc. | Flow limiter and filter assembly for a fuel system of an engine |
Also Published As
Publication number | Publication date |
---|---|
KR20090018929A (en) | 2009-02-24 |
JP5189087B2 (en) | 2013-04-24 |
WO2007144122A1 (en) | 2007-12-21 |
EP2027386B1 (en) | 2010-08-25 |
EP2027386A1 (en) | 2009-02-25 |
KR101390951B1 (en) | 2014-05-02 |
JP2009540203A (en) | 2009-11-19 |
ATE479019T1 (en) | 2010-09-15 |
DE102006027614B4 (en) | 2009-02-05 |
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