DE102006009071A1 - Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt - Google Patents
Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt Download PDFInfo
- Publication number
- DE102006009071A1 DE102006009071A1 DE200610009071 DE102006009071A DE102006009071A1 DE 102006009071 A1 DE102006009071 A1 DE 102006009071A1 DE 200610009071 DE200610009071 DE 200610009071 DE 102006009071 A DE102006009071 A DE 102006009071A DE 102006009071 A1 DE102006009071 A1 DE 102006009071A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- fuel injection
- spring sleeve
- recesses
- pressure area
- 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- Withdrawn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
- 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
- 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
-
- 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
- F02M63/0045—Three-way valves
-
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/001—Control chambers formed by movable sleeves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of technology
Die Erfindung betrifft ein Brennstoffeinspritzventil für Brennstoffeinspritzanlagen von Brennkraftmaschinen. Speziell betrifft die Erfindung einen Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen.The The invention relates to a fuel injection valve for fuel injection systems of internal combustion engines. Specifically, the invention relates to an injector for fuel injection systems of air-compressing, self-igniting Internal combustion engines.
Aus
der
Das
aus der
Offenbarung der Erfindungepiphany the invention
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass der Ventilbolzen zumindest im Wesentlichen ohne Querkräfte oder mit verschwindenden Querkräften in Richtung der Ausgangsstellung beaufschlagt ist, so dass ein Verschleiß einer Dichtkante zum Niederdruckbereich verringert ist. Beschädigungen am Sitz, beispielsweise durch Kavitation, können ebenfalls verhindert oder verringert werden.The Fuel injection valve according to the invention with the features of claim 1 has the advantage that the valve pin at least essentially without lateral forces or with vanishing transverse forces is acted upon in the direction of the starting position, so that a wear of a Sealing edge is reduced to the low pressure area. damage at the seat, for example by cavitation, can also be prevented or reduced become.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Anspruch 1 angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments of specified in claim 1 Fuel injection valve possible.
In vorteilhafter Weise weist das Ventil einen Ventilsitzkörper auf, der mit einem Dichtkegel des Ventilbolzens zu einem Dichtsitz zusammenwirkt, um die Verbindung zwischen dem Ventilraum und dem Niederdruckbereich über die Abflussöffnung zu verschließen. Dabei ist der Dichtsitz vorzugsweise an einer Dichtkante des an einer Ventilplatte ausgebildeten Ventilsitzkörpers gebildet, wobei die Federhülse den Dichtkegel des Ventilbolzens gleichmäßig gegen die Dichtkante beaufschlagt. Dadurch wird der Dichtkegel im Ausgangszustand gleichmäßig gegen die Dichtkante des Ventilsitzkörpers gepresst, wobei insbesondere eine punktuelle Belastung der Dichtkante, wie sie bei Querkräften auftreten kann, verhindert ist, so dass ein Verschleiß des Dichtkegels und des Ventilsitzkörpers, insbesondere im Bereich der Dichtkante, verhindert ist. Dabei ist der Ventilraum im Ausgangszustand gegenüber dem Niederdruckbereich verschlossen, so dass bei einer Inbetriebnahme des Brennstoffeinspritzventils ein rascher Druckaufbau ermöglicht und das Auftreten von Kavitation am Sitz verhindert ist.In Advantageously, the valve has a valve seat body, which cooperates with a sealing cone of the valve pin to a sealing seat, to the connection between the valve space and the low pressure area over the drain opening to close. In this case, the sealing seat is preferably attached to a sealing edge of the formed a valve plate formed valve seat body, wherein the spring sleeve the Apply sealing cone of the valve pin evenly against the sealing edge. As a result, the sealing cone in the initial state is uniform against the sealing edge of the valve seat body pressed, in particular a punctual load on the sealing edge, such as she at shear forces can occur is prevented, so that wear of the sealing cone and the valve seat body, especially in the region of the sealing edge, is prevented. It is the valve chamber is closed in the initial state with respect to the low-pressure region, so that when commissioning the fuel injector allows a rapid pressure build-up and the occurrence of cavitation on the seat is prevented.
Vorteilhaft ist es, dass die Federhülse zumindest zwei in einer Umfangsrichtung verlaufende Aussparungen aufweist. Die Aussparungen ermöglichen ein Einfedern der Federhülse und gleichzeitig einen Durchfluss von Brennstoff, so dass beispielsweise Brennstoff aus dem Umgehungskanal in den Teil des Ventilraums zwischen der Federhülse und einer Wand des Ventilraums gelangen kann. Die Aussparungen sind dabei vorzugsweise im Wesentlichen schlitzförmig ausgestaltet, wobei die Schlitzenden der Aussparungen zum Vermeiden von Rissen und dergleichen in dem Material der Federhülse abgerundet ausgestaltet sind. Besonders vorteilhaft ist es, dass die Federhülse mehrere Aussparungen aufweist, die in einer gleichen Höhe liegen und die in Umfangsrichtung aufeinanderfolgend angeordnet sind. Beispielsweise können auf einer gewissen Höhe zwei Aussparungen vorgesehen sein, die jeweils ein Bogenmaß von fast 180° haben, wobei zwischen den Aussparungen Stege ausgebildet sind. Solche Stege haben vorzugsweise in Umfangsrichtung gesehen zumindest näherungsweise die gleiche Breite. Dadurch wird ein gleichmäßiges Entfalten der Federkraft der Federhülse erreicht, wobei Querkräfte zuverlässig verhindert sind. In einer gewissen Höhe können jedoch auch mehr als zwei solcher Aussparungen vorgesehen sein, die vorzugsweise eine übereinstimmende Ausgestaltung aufweisen, so dass deren Erstreckung in Umfangsrichtung vorzugsweise gleich ist.Advantageous is it that the spring sleeve at least two recesses extending in a circumferential direction having. The recesses allow a Compression of the spring sleeve and at the same time a flow of fuel, so that, for example, fuel from the bypass passage into the part of the valve space between the spring sleeve and can reach a wall of the valve chamber. The recesses are preferably configured substantially slit-shaped, wherein the Slit ends of the recesses for avoiding cracks and the like in the material of the spring sleeve rounded are designed. It is particularly advantageous that the spring sleeve has a plurality of recesses which are at the same height and which are arranged sequentially in the circumferential direction. For example can at a certain height two recesses may be provided, each having a radiancy of almost 180 °, wherein webs are formed between the recesses. Such bridges preferably have at least approximately in the circumferential direction the same width. This will cause a uniform deployment of the spring force the spring sleeve achieved, with lateral forces reliably prevented are. At a certain height, however, can Also be provided more than two such recesses, preferably a matching one Have design, so that their extension in the circumferential direction is preferably the same.
Vorteilhaft ist es, dass die Federhülse in mehreren Höhen jeweils solche Aussparungen aufweist, die in Umfangsrichtung aufeinanderfolgend angeordnet sind. Dadurch kann die Federrate der Federhülse weiter reduziert werden. In einer Längs- oder Höhenrichtung gesehen benachbarte Anordnungen von Aussparungen sind vorzugsweise in Umfangrichtung zueinander versetzt angeordnet, so dass ein Auftreten von Querkräften verhindert ist.It is advantageous that the spring sleeve has at several heights in each case such recesses, which are arranged successively in the circumferential direction. As a result, the spring rate of the spring sleeve can be further reduced. Seen in a longitudinal or vertical direction adjacent Anord Cutouts of recesses are preferably arranged offset in the circumferential direction to each other, so that an occurrence of shear forces is prevented.
Die Federhülse kann aus einem hülsenförmigen Metallblech gebildet sein, das beispielsweise eine Blechstärke von 0,1 mm, 0,15 mm oder 0,2 mm aufweist.The spring sleeve can be made of a sleeve-shaped metal sheet be formed, for example, a sheet thickness of 0.1 mm, 0.15 mm or 0.2 mm.
Zeichnungdrawing
Bevorzugte Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung anhand der beigefügten Zeichnungen, in denen sich entsprechende Elemente mit übereinstimmenden Bezugszeichen versehen sind, näher erläutert. Es zeigt:preferred embodiments The invention are described in the following description with reference to attached Drawings in which corresponding elements with matching reference numerals are provided, closer explained. It shows:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Das
Brennstoffeinspritzventil
Ein
Haltekörper
Der
Steuerraum
Ein
im Inneren des Haltekörpers
Beim
Inbetriebnehmen des Brennstoffeinspritzventils
Bei
einer Betätigung
des Brennstoffeinspritzventils
Die
Federhülse
Die
Aussparungen
Die Erfindung ist nicht auf das beschriebene Ausführungsbeispiel beschränkt.The Invention is not limited to the embodiment described.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610009071 DE102006009071A1 (en) | 2006-02-28 | 2006-02-28 | Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt |
PCT/EP2007/050454 WO2007098986A1 (en) | 2006-02-28 | 2007-01-17 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610009071 DE102006009071A1 (en) | 2006-02-28 | 2006-02-28 | Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006009071A1 true DE102006009071A1 (en) | 2007-08-30 |
Family
ID=37907464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610009071 Withdrawn DE102006009071A1 (en) | 2006-02-28 | 2006-02-28 | Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006009071A1 (en) |
WO (1) | WO2007098986A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008001330A1 (en) * | 2008-04-23 | 2009-10-29 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999061779A1 (en) * | 1998-05-28 | 1999-12-02 | Siemens Aktiengesellschaft | Fuel injection valve for internal combustion engines |
JP3551898B2 (en) * | 2000-06-15 | 2004-08-11 | トヨタ自動車株式会社 | Fuel injection valve |
DE10145862A1 (en) * | 2001-09-18 | 2003-04-03 | Bosch Gmbh Robert | Method for injecting fuel and valve for controlling liquids |
DE10213382A1 (en) * | 2002-03-26 | 2003-10-16 | Bosch Gmbh Robert | Fuel injection valve |
DE10254985A1 (en) * | 2002-11-26 | 2004-06-03 | Robert Bosch Gmbh | Valve for controlling liquids with a nozzle and a control module |
-
2006
- 2006-02-28 DE DE200610009071 patent/DE102006009071A1/en not_active Withdrawn
-
2007
- 2007-01-17 WO PCT/EP2007/050454 patent/WO2007098986A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2007098986A1 (en) | 2007-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1435453B1 (en) | Inward opening dual mode nozzle | |
EP1733139B1 (en) | Common rail injector | |
EP1991774B1 (en) | Fuel injection valve | |
WO2006063912A1 (en) | Fuel injection valve for an internal combustion engine | |
EP0976924B1 (en) | Injector with a servo valve | |
EP1395744B1 (en) | Fuel injection device for combustion motors, especially common rail injector, fuel system and internal combustion engine | |
EP2206912B1 (en) | Fuel injector | |
EP1910663B1 (en) | Fuel injection device for an internal combustion engine using direct fuel injection | |
WO2007000371A1 (en) | Injector with a pressure intensifier that can be switched on | |
EP1840366B1 (en) | Fuel injector | |
DE102006009071A1 (en) | Fuel injection valve for self-igniting internal combustion engines comprises a valve with a spring sleeve partially enclosing a bolt section of a valve bolt | |
EP2439398B1 (en) | Fuel injector valve | |
EP2354527A2 (en) | Fuel injector | |
WO2007098985A1 (en) | Fuel injection valve | |
DE10160490B4 (en) | Fuel injection device, fuel system and internal combustion engine | |
DE10148350A1 (en) | Fuel injector, for a common rail direct fuel injection at an IC motor, has a fuel flow channel through the valve unit, opening into a flow zone directly upstream of the valve seat | |
EP2267295A2 (en) | Fuel injector | |
DE102009045556A1 (en) | Injector, particularly common-rail-injector for injecting fuel to combustion chamber of internal combustion engine, comprises valve element which is adjusted between closing position and opening position | |
DE102007001365A1 (en) | Common rail injector, for injecting e.g. petrol, into combustion chamber of internal combustion engine, has switching chamber connected with low pressure area by connecting channel that is closed and opened by control valve | |
EP2726731B1 (en) | Fuel injector | |
EP1654454B1 (en) | Fuel injection device for a combustion engine | |
WO2005103479A1 (en) | Common rail injector | |
WO2016058969A1 (en) | Injection valve for injecting fluid into a combustion chamber of an internal combustion engine | |
WO2007147667A1 (en) | Fuel injection device for an internal combustion engine | |
WO2008095743A1 (en) | Injector for injecting fuel into combustion chambers of internal combustion engines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |