DE102008041502A1 - Fuel injector with a solenoid valve - Google Patents
Fuel injector with a solenoid valve Download PDFInfo
- Publication number
- DE102008041502A1 DE102008041502A1 DE102008041502A DE102008041502A DE102008041502A1 DE 102008041502 A1 DE102008041502 A1 DE 102008041502A1 DE 102008041502 A DE102008041502 A DE 102008041502A DE 102008041502 A DE102008041502 A DE 102008041502A DE 102008041502 A1 DE102008041502 A1 DE 102008041502A1
- Authority
- DE
- Germany
- Prior art keywords
- anchor bolt
- fuel injector
- valve seat
- valve
- anchor
- 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.)
- Ceased
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
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
-
- 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
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
- F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
-
- 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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
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)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Bei einem Kraftstoffinjektor (21) für Brennkraftmaschinen, mit einem an eine Hochdruckseite (25) angeschlossenen Steuerraum (22), über dessen Druck die Bewegung einer Düsennadel (23) gesteuert wird, und mit einem Magnetventil (26), das die Verbindung einer vom Steuerraum (22) kommenden Bohrung (29) zu einer Niederdruckseite (27) entweder sperrt oder öffnet, wobei das Magnetventil (26) ein Ventilstück (28) mit einem Ventilsitz (31), in den die Bohrung (29) mündet, einen koaxial zum Ventilsitz (31) angeordneten Ankerbolzen (35), der an seinem einen, der Bohrung (29) abgewandten Ende (35a) an einer Anlagefläche (36a) des Kraftstoffinjektors (21) anliegt, und einen auf dem Ankerbolzen (35) verschiebbar geführten Anker (34), der mit dem Ventilsitz (31) zusammenwirkt, umfasst, ist erfindungsgemäß vorgesehen, dass der Ankerbolzen (35) an seinem anderen Ende (35b) in der Bohrung (29) des Ventilstücks (28) geführt ist und dass entlang seiner axialen Führungslänge ein freier Strömungsquerschnitt vorgesehen ist, der sich bis zum Ventilsitz (31) erstreckt.In a fuel injector (21) for internal combustion engines, with a control chamber (22) connected to a high-pressure side (25), via the pressure of which the movement of a nozzle needle (23) is controlled, and with a solenoid valve (26) connecting one of the control chamber (22) coming hole (29) to a low pressure side (27) either locks or opens, wherein the solenoid valve (26) has a valve piece (28) with a valve seat (31) into which the bore (29) opens, coaxial with the valve seat (31) arranged anchor bolt (35) which abuts at its one, the bore (29) remote from the end (35a) on a contact surface (36a) of the fuel injector (21), and on the anchor bolt (35) slidably guided anchor (34 ), which cooperates with the valve seat (31) comprises, is provided according to the invention, that the anchor bolt (35) at its other end (35b) in the bore (29) of the valve piece (28) is guided and that along its axial guide length a free stream is provided cross section, which extends to the valve seat (31).
Description
Die Erfindung geht aus von einem Kraftstoffinjektor mit einem Magnetventil nach der Gattung des Anspruchs 1.The The invention is based on a fuel injector with a solenoid valve according to the preamble of claim 1.
Ein
solcher bekannter Kraftstoffinjektor ist in
Koaxial
zur Düsennadel
Allerdings
lassen die Fertigungstoleranzen von Ventilstück
Vorteile der ErfindungAdvantages of the invention
Erfindungsgemäß ist der Ankerbolzen in einer Führung des Ventilstücks geführt und somit dauerhaft zum Ventilsitz des Ventilstücks zentriert. Da relative große Mengen an Kraftstoff durch den Ventilsitz und damit durch die Führung des Ventilstücks strömen, ist der Ankerbolzen im Bereich der Führung vorzugsweise als 2-, 3- oder 4-Kant gefertigt und weist im Bereich des Ventilssitzes einen Freistich (z. B. Ringnut) auf, der für eine homogene Durchströmung des Ventilssitzes sorgt. Durch die Führung des Ankerbolzens im Ventilstück kann vorteilhaft die Führung des Ankers im Ventilstück entfallen.According to the invention Anchor bolt in a leadership of the valve piece guided and thus permanently centered to the valve seat of the valve piece. Because relative size Amounts of fuel through the valve seat and thus by the leadership of the valve piece stream, is the anchor bolt in the region of the guide preferably as 2-, 3 or 4-Kant made and has an undercut in the area of the valve seat (eg annular groove) on that for a homogeneous flow through the Valve seat ensures. Through the leadership of the anchor bolt in the valve piece can be beneficial to the leadership of the anchor in the valve piece omitted.
Weitere Vorteile des erfindungsgemäßen Kraftstoffinjektors sind:
- – Auch falls der Ankerbolzen mit seinem dem Ventilsitz abgewandten Ende nicht koaxial zum Ventilssitz am Injektorgehäuse anliegt, kann der Versatz des Ankerbolzens im Bereich des Ventilsitzes nur Werte im Bereich seines Führungsspiels innerhalb der Führung des Ventilstücks annehmen.
- – Der Sitzwinkel des Ventilsitzes kann bei Entfall der Führung des Ankers im Ventilstück sehr viel stärker variiert werden.
- – Im Gegensatz zum bekannten Kraftstoffinjektor ist eine Beschichtung des Ventilstücks möglich.
- - Even if the anchor bolt with its valve seat facing away from the end is not coaxial with the valve seat on the injector, the offset of the anchor bolt in the region of the valve seat can only assume values in the range of its leadership game within the leadership of the valve piece.
- - The seat angle of the valve seat can be much more varied when the leadership of the anchor in the valve piece.
- - In contrast to the known fuel injector, a coating of the valve piece is possible.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further Advantages and advantageous embodiments of the subject invention are the description, the drawings and the claims removable.
Zeichnungendrawings
Ein Ausführungsbeispiel des erfindungsgemäßen Gegenstands ist in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:One embodiment the article of the invention is shown in the drawings and in the following description explained in more detail. It demonstrate:
Beschreibung des AusführungsbeispielsDescription of the embodiment
Der
in
Koaxial
zur Düsennadel
Der
Ankerbolzen
Durch
seine Führung
im Ventilstück
In
seiner in
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008041502A DE102008041502A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injector with a solenoid valve |
PCT/EP2009/058548 WO2010023009A1 (en) | 2008-08-25 | 2009-07-07 | Fuel injector with a solenoid valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008041502A DE102008041502A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injector with a solenoid valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008041502A1 true DE102008041502A1 (en) | 2010-03-04 |
Family
ID=41213313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008041502A Ceased DE102008041502A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injector with a solenoid valve |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008041502A1 (en) |
WO (1) | WO2010023009A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104169019B (en) * | 2012-03-15 | 2016-08-24 | 罗伯特·博世有限公司 | Manufacture the instrument of dome in the method for valve and the armature pin of ram valve |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11746734B2 (en) * | 2018-08-23 | 2023-09-05 | Progress Rail Services Corporation | Electronic unit injector shuttle valve |
GB2624138B (en) * | 2021-12-02 | 2024-09-25 | Phinia Delphi Luxembourg Sarl | Fuel pump |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005021916U1 (en) * | 2005-12-12 | 2011-05-12 | C.R.F. Società Consortile per Azioni, Orbassano | Fuel injection system for an internal combustion engine |
DE102006050033A1 (en) * | 2006-10-24 | 2008-04-30 | Robert Bosch Gmbh | Injector, in particular common rail injector |
DE102006050812A1 (en) * | 2006-10-27 | 2008-04-30 | Robert Bosch Gmbh | Fuel injector for internal-combustion engine, has bushing closing annular groove outwards in its closed valve position, and opening connection of groove to low pressure side in its opened valve position, which is moved towards chamber |
DE102006050810A1 (en) * | 2006-10-27 | 2008-04-30 | Robert Bosch Gmbh | Fuel injector for internal combustion engines, comprises control valve with stationary valve pin which has internal relief duct that extends from control chamber to annular groove of valve pin |
DE102007001363A1 (en) * | 2007-01-09 | 2008-07-10 | Robert Bosch Gmbh | Injector for injecting fuel into combustion chambers of internal combustion engines |
DE102007006946A1 (en) * | 2007-02-13 | 2008-08-14 | Robert Bosch Gmbh | Injector for injecting fuel into combustion chambers of internal combustion engines |
-
2008
- 2008-08-25 DE DE102008041502A patent/DE102008041502A1/en not_active Ceased
-
2009
- 2009-07-07 WO PCT/EP2009/058548 patent/WO2010023009A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104169019B (en) * | 2012-03-15 | 2016-08-24 | 罗伯特·博世有限公司 | Manufacture the instrument of dome in the method for valve and the armature pin of ram valve |
Also Published As
Publication number | Publication date |
---|---|
WO2010023009A1 (en) | 2010-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3655641B1 (en) | Injector for injecting fuel | |
DE102014005741B4 (en) | DUAL FUEL INJECTOR WITH F, A AND Z METERING CONTROL | |
DE102007056913A1 (en) | Injector for fuel with ball valve | |
DE102006055548A1 (en) | fuel injector | |
DE4243665A1 (en) | Fuel injection device, in particular pump nozzle for internal combustion engines | |
DE102009000206A1 (en) | Fuel injector for internal combustion engines | |
EP2798194B1 (en) | Fuel injection valve for internal combustion engines | |
EP2084392A1 (en) | Fuel injector | |
DE102006050810A1 (en) | Fuel injector for internal combustion engines, comprises control valve with stationary valve pin which has internal relief duct that extends from control chamber to annular groove of valve pin | |
DE102008041502A1 (en) | Fuel injector with a solenoid valve | |
DE102007030711A1 (en) | Injector with outwardly opening valve element | |
DE102011089360A1 (en) | Fuel injection valve for internal combustion engines | |
DE102015226350A1 (en) | fuel injector | |
DE102008000926A1 (en) | Fuel injector with solenoid valve | |
EP2147206B1 (en) | Fuel injector with a magnetic valve | |
DE10132246A1 (en) | Fuel injector with high pressure resistant inlet | |
DE10132249A1 (en) | Fuel injector with force-balanced control valve | |
DE102004010759A1 (en) | Common rail injector | |
DE102013221554A1 (en) | fuel injector | |
DE10036578A1 (en) | Fuel injection unit for internal combustion engine has slide valve formed by cylindrical end section of control valve element and constructed as throttling section and protruding into first overflow oil chamber | |
DE102010043110A1 (en) | Fuel injection valve for internal combustion engines | |
WO2008125537A1 (en) | Injector | |
DE102008001822A1 (en) | Solenoid valve with anchor slot | |
DE102006048727A1 (en) | Fuel injector with solenoid valve | |
DE102011089337A1 (en) | Fuel injection valve for internal combustion engines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |