DE102006013958A1 - Fuel injection valve for direct injection of fuel into combustion chamber of internal combustion engine, has hydraulic coupler exhibiting guide that is arranged relative to housing of valve, where guide is central passage of guiding pipe - Google Patents
Fuel injection valve for direct injection of fuel into combustion chamber of internal combustion engine, has hydraulic coupler exhibiting guide that is arranged relative to housing of valve, where guide is central passage of guiding pipe Download PDFInfo
- Publication number
- DE102006013958A1 DE102006013958A1 DE200610013958 DE102006013958A DE102006013958A1 DE 102006013958 A1 DE102006013958 A1 DE 102006013958A1 DE 200610013958 DE200610013958 DE 200610013958 DE 102006013958 A DE102006013958 A DE 102006013958A DE 102006013958 A1 DE102006013958 A1 DE 102006013958A1
- Authority
- DE
- Germany
- Prior art keywords
- coupler
- fuel
- fuel injection
- injection valve
- 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 64
- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 title claims description 10
- 230000001747 exhibiting effect Effects 0.000 title 1
- 239000012528 membrane Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000008646 thermal stress 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
- 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
- F02M61/08—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 the valves opening in direction of fuel flow
-
- 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
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M2200/16—Sealing of fuel injection apparatus 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms
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 technology
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 Offenlegungsschrift
Nachteilig
an dem aus der
Weiterhin sind diverse Lösungen bekannt, dem Brennstoffeinspritzventil den Brennstoff zentral zuzuführen, jedoch ist es hierbei meist nicht möglich, einen hydraulischen Koppler zu integrieren, um thermische und mechanische Längenänderungen des Aktors zu kompensieren, wodurch es zu Schädigungen des Aktors bis zu völliger Unbrauchbarkeit des Brennstoffeinspritzventils kommen kann.Farther are various solutions known to supply the fuel to the fuel injection valve centrally, however It is usually not possible here, one integrate hydraulic coupler to thermal and mechanical changes in length compensate for the actuator, causing damage to the actuator up to complete Unusability of the fuel injection valve may come.
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, dass sowohl ein hydraulischer Koppler als auch eine zentrale Brennstoffzufuhr kombiniert werden, was dadurch ermöglicht wird, dass der Koppler eine relativ zu einem Gehäuse des Brennstoffeinspritzventils verschieblich angeordnete Führung aufweist, die von einem brennstoffführenden Rohr durchgriffen ist.The Fuel injection valve according to the invention with the characterizing features of the main claim has the Advantage that both a hydraulic coupler and a central Combined fuel supply, thereby enabling in that the coupler is displaceable relative to a housing of the fuel injection valve arranged leadership has, which is penetrated by a fuel-carrying tube.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments and improvements of the main claim specified fuel injector possible.
Weiterhin ist von Vorteil, dass die Krafteinleitung in die Führung in einfacher Weise über eine Druckscheibe durch eine sich gehäuseseitig abstützende Feder erfolgt.Farther is advantageous that the introduction of force in the leadership in easy way over a pressure plate by a housing side supporting spring he follows.
Vorteilhafterweise ist der Koppler über zwei Dichtringe abgedichtet, so dass nur geringfügige Leckageverluste des Hydraulikmediums zu verzeichnen sind.advantageously, is the coupler over sealed two sealing rings, so that only minor leakage losses of the hydraulic medium to be recorded.
Besonders vorteilhaft ist, dass sich der Kopplerkolben über eine kardanische Lagerung an dem Aktor abstützt, wodurch sowohl axiale als auch radiale Toleranzen ausgeglichen werden können.Especially It is advantageous that the coupler piston has a gimbal bearing supported on the actuator, whereby both axial and radial tolerances are compensated can.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:One embodiment the invention is shown in simplified form in the drawing and in the following description explained. Show it:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
In
Das
Brennstoffeinspritzventil
Abströmseitig
des Aktormoduls
Die
Ventilnadel
An
dem Einsatz
Eine
zweite Membran
In
die Einstellhülse
Der
dem Brennstoffeinspritzventil
Das
beschriebene Ausführungsbeispiel
eines Brennstoffeinspritzventils
Es ist bekannt, zum Ausgleich derartiger Toleranzen einen hydraulischen Koppler einzusetzen, welcher mit einem Hydraulikmedium befüllt ist, welches je nach Belastungszustand aus einem Ausgleichsvolumen in einen Kopplerspalt und zurück geleitet wird. Derartige Lösungen sind jedoch bedingt durch die Bauform des hydraulischen Kopplers meist mit einer seitlichen Brennstoffzufuhr versehen, welche die Herstellung und Montage der Bauteile aufwendig macht.It is known to compensate for such tolerances a hydraulic Use a coupler which is filled with a hydraulic medium, which depending on the load condition from a compensation volume in a coupler gap and back is directed. Such solutions are however due to the design of the hydraulic coupler usually provided with a lateral fuel supply, which the Making and assembling the components expensive.
Erfindungsgemäß ist daher
vorgesehen, einen hydraulischen Koppler
Ein
bevorzugtes Ausführungsbeispiel
eines mit einem derartigen Koppler
Dabei
ist der Koppler
Zuströmseitig
stützt
sich an der Führung
Der
Kopplerkolben
Wird
der Aktor
Die
Montage des erfindungsgemäßen Kopplers
Da
durch die Dichtringe
Durch
die beschriebene erfindungsgemäße Ausbildung
des Kopplers
Die
Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt und
auch für
beliebige andere Bauweisen von Brennstoffeinspritzventilen
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013958.5A DE102006013958B4 (en) | 2006-03-27 | 2006-03-27 | Fuel injector |
ITMI20070556 ITMI20070556A1 (en) | 2006-03-27 | 2007-03-21 | FUEL INJECTION VALVE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013958.5A DE102006013958B4 (en) | 2006-03-27 | 2006-03-27 | Fuel injector |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006013958A1 true DE102006013958A1 (en) | 2007-10-04 |
DE102006013958B4 DE102006013958B4 (en) | 2016-11-10 |
Family
ID=38460062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006013958.5A Expired - Fee Related DE102006013958B4 (en) | 2006-03-27 | 2006-03-27 | Fuel injector |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006013958B4 (en) |
IT (1) | ITMI20070556A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012130538A1 (en) * | 2011-03-28 | 2012-10-04 | Robert Bosch Gmbh | Valve for metering a medium |
EP2899393A1 (en) * | 2014-01-22 | 2015-07-29 | Robert Bosch GmbH | Valve for measuring out fluid |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0656162B2 (en) * | 1987-03-03 | 1994-07-27 | トヨタ自動車株式会社 | Variable stroke device |
DE29708546U1 (en) * | 1997-05-14 | 1998-09-10 | Fev Motorentech Gmbh & Co Kg | Electric solid state actuator with hydraulic transmission |
EP1445479B1 (en) * | 2003-02-04 | 2005-11-16 | Siemens VDO Automotive S.p.A. | Thermal compensator unit for use in a metering device |
DE10357189A1 (en) * | 2003-12-08 | 2005-07-07 | Robert Bosch Gmbh | Fuel injector |
DE102004002134A1 (en) * | 2004-01-15 | 2005-08-04 | Robert Bosch Gmbh | Fuel injection valve has second seal on other side of pot floor from piston forming second balancing chamber with first pot floor that has flow connection via choke element to coupler gap |
-
2006
- 2006-03-27 DE DE102006013958.5A patent/DE102006013958B4/en not_active Expired - Fee Related
-
2007
- 2007-03-21 IT ITMI20070556 patent/ITMI20070556A1/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012130538A1 (en) * | 2011-03-28 | 2012-10-04 | Robert Bosch Gmbh | Valve for metering a medium |
EP2899393A1 (en) * | 2014-01-22 | 2015-07-29 | Robert Bosch GmbH | Valve for measuring out fluid |
Also Published As
Publication number | Publication date |
---|---|
ITMI20070556A1 (en) | 2007-09-28 |
DE102006013958B4 (en) | 2016-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20121212 |
|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |