WO2018137913A1 - Solenoid valve, internal combustion engine comprising a solenoid valve, and method for producing a solenoid valve - Google Patents
Solenoid valve, internal combustion engine comprising a solenoid valve, and method for producing a solenoid valve Download PDFInfo
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- WO2018137913A1 WO2018137913A1 PCT/EP2018/050319 EP2018050319W WO2018137913A1 WO 2018137913 A1 WO2018137913 A1 WO 2018137913A1 EP 2018050319 W EP2018050319 W EP 2018050319W WO 2018137913 A1 WO2018137913 A1 WO 2018137913A1
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- Prior art keywords
- needle
- solenoid valve
- valve
- austenitic steel
- needle head
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
- F16K31/0665—Lift valves with valve member being at least partially ball-shaped
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- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
Definitions
- Solenoid valve Internal combustion engine with solenoid valve and method for
- the present invention relates to a solenoid valve with good
- the present invention also relates to an internal combustion engine with a corrosion-protected solenoid valve.
- Solenoid valves and in particular their valve needles, are mostly made of martensitic steel due to their very good mechanical properties and in particular high hardness.
- a disadvantage of martensitic steels is their high susceptibility to corrosion, which leads to corrosion especially in the case of water-containing media to be controlled and, after a short time, to the failure of the solenoid valve.
- the solenoid valve which is provided for controlling fluids, comprises a valve needle.
- the valve needle is in particular at least partially inside a valve housing
- valve needle thus comes in direct contact with the fluid to be controlled.
- the valve needle in this case comprises a needle head which releases and closes at least one outlet opening on a valve seat. Furthermore, the valve needle has an arranged in the axial direction of the valve needle needle shaft, at one of End of the needle head is arranged. In order to obtain a good corrosion stability, at least one surface of the valve needle is made of a
- Austenitic steels are characterized by a high corrosion resistance, even with permanent contact with
- a surface of the needle head is formed from an austenitic steel.
- the needle head performs the function of closing and releasing at least one outlet opening on the valve seat and is thus permanently in contact with the fluid to be controlled,
- the needle head is formed entirely of an austenitic steel.
- the needle head and the needle shaft is usually permanently in direct contact with the fluid to be controlled. Further advantageously, it is therefore provided that a surface of the needle shaft is formed from an austenitic steel.
- the needle shank is formed entirely of an austenitic steel.
- both at least one surface of the needle shaft and a surface of the needle head from a austenitic steel are formed.
- both the needle head and the needle shaft made of austenitic steel. This also facilitates the connection formation between the needle head and the needle shaft, which is then very easy to produce by a cohesive connection, in particular by a welded connection.
- Austenitic steels may have lower mechanical strength compared to conventional martensitic steels.
- the austenitic steel of the solenoid valve is preferably kolsterinstrument.
- the mechanical properties, and in particular the wear resistance of the solenoid valve, can also advantageously be improved by coating the austenitic steel with a DLC layer.
- DLC ie diamond-like-carbon
- a component that at least partially surrounds the valve needle, in particular a valve housing is formed from an austenitic steel.
- an internal combustion engine which comprises a solenoid valve as described above.
- the corrosion resistance of the internal combustion engine can be improved with durable stable and reliable mileage.
- the solenoid valve to be produced comprises a valve needle with a needle head and a needle shaft arranged on the needle head in the axial direction of the valve needle.
- the needle head has the function of releasing and closing at least one outlet opening on a valve seat.
- valve needle made of an austenitic steel.
- At least one surface of the needle head and / or a surface of the needle shaft are formed of austenitic steel, and the needle head and / or the needle shaft can be formed entirely of austenitic steel. This facilitates the manufacturing process, since only one
- the austenitic steel is preferably kolsterintestin.
- the wear resistance of the solenoid valve can be further increased by the method in particular a step of
- Figure 1 is a schematic sectional view of a solenoid valve according to an embodiment of the invention.
- the solenoid valve 1 comprises a valve needle 2.
- the valve needle 2 has a needle head 3 and a needle shaft 4 arranged on the needle head 3 in the axial direction XX of the valve needle 2.
- the needle shaft 4 and the needle head 3 are integrally connected to each other by means of a welded joint 14.
- the valve needle 2 is surrounded by a valve housing 6, wherein between the valve housing 6 and the valve needle 2, a fluid path 7 for guiding a fluid is present.
- a return element 1 1 is connected to the valve needle 2 to reset the valve needle 2 in the starting position.
- FIG. 1 shows the
- the solenoid valve 1 further comprises a magnet armature 10 and an inner pole 12. Further, a coil 13 is provided, which when energized the
- Magnetic armature 10 in the direction of the inner pole 12 attracts.
- a surface of the needle shaft 4 and a surface of the needle head 3 are formed of an austenitic steel.
- a very good corrosion resistance of the valve needle 2 is achieved.
- the welded joint 14 can be performed easily and stably.
- the needle head 3 and the needle shaft 4 are formed entirely of austenitic steel.
- the valve needle 2 further comprises a first armature stop 8 and a second armature stop 9.
- the magnet armature 10 is arranged between the first and second armature stop 8, 9.
- a guide region 16 for the magnet armature 10 is provided on the valve needle 2.
- valve needle 2 in particular also the valve housing 6, are made of austenitic steel.
- This version offers a particularly high, durable corrosion resistance, especially against hydrous fluids.
- the used austenitic steel is kolsterintestin.
- Abrasion resistance of the austenitic steel may be further enhanced by a DLC Coating be increased.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Fuel-Injection Apparatus (AREA)
- Lift Valve (AREA)
Abstract
Description
Beschreibung Titel Description title
Magnetventil, Brennkraftmaschine mit Magnetventil und Verfahren zur Solenoid valve, internal combustion engine with solenoid valve and method for
Herstellung eines Magnetventils Production of a solenoid valve
Stand der Technik State of the art
Die vorliegende Erfindung betrifft ein Magnetventil mit guter The present invention relates to a solenoid valve with good
Korrosionsbeständigkeit sowie ein Verfahren zur Herstellung eines solchen Magnetventils. Darüber hinaus betrifft die vorliegende Erfindung auch eine Brennkraftmaschine mit einem korrosionsgeschützten Magnetventil. Corrosion resistance and a method for producing such a solenoid valve. In addition, the present invention also relates to an internal combustion engine with a corrosion-protected solenoid valve.
Magnetventile, und insbesondere deren Ventilnadeln, werden aufgrund der sehr guten mechanischen Eigenschaften und insbesondere einer hohen Härte, zumeist aus martensitischem Stahl hergestellt. Nachteilig an martensitischen Stählen ist ihre hohe Korrosionsanfälligkeit, die insbesondere bei wasserhaltigen zu steuernden Medien zu Korrosion und nach kurzer Zeit zum Versagen des Magnetventils führt. Solenoid valves, and in particular their valve needles, are mostly made of martensitic steel due to their very good mechanical properties and in particular high hardness. A disadvantage of martensitic steels is their high susceptibility to corrosion, which leads to corrosion especially in the case of water-containing media to be controlled and, after a short time, to the failure of the solenoid valve.
Offenbarung der Erfindung Disclosure of the invention
Das erfindungsgemäße Magnetventil mit den Merkmalen von Anspruch 1 , zeichnet sich hingegen durch eine sehr gute Korrosionsbeständigkeit, selbst beim Führen von wasserhaltigen Medien, aus. Hierzu umfasst das Magnetventil, das zum Steuern von Fluiden vorgesehen ist, eine Ventilnadel. Die Ventilnadel ist insbesondere mindestens teilweise im Inneren eines Ventilgehäuses The solenoid valve according to the invention with the features of claim 1, however, characterized by a very good corrosion resistance, even when carrying hydrous media, from. For this purpose, the solenoid valve, which is provided for controlling fluids, comprises a valve needle. The valve needle is in particular at least partially inside a valve housing
angeordnet, wobei zwischen der Ventilnadel und dem Gehäuse ein Fluidpfad vorhanden ist, der zum Leiten eines Fluids vorgesehen ist. Die Ventilnadel gelangt also in direkten Kontakt mit dem zu steuernden Fluid. Die Ventilnadel umfasst hierbei einen Nadelkopf, der an einem Ventilsitz wenigstens eine Auslassöffnung freigibt und verschließt. Ferner weist die Ventilnadel einen in Axialrichtung der Ventilnadel angeordneten Nadelschaft auf, an dessen einem Ende der Nadelkopf angeordnet ist. Um eine gute Korrosionsstabilität zu erhalten, ist mindestens eine Oberfläche der Ventilnadel aus einem arranged, between the valve needle and the housing, a fluid path is provided, which is provided for conducting a fluid. The valve needle thus comes in direct contact with the fluid to be controlled. The valve needle in this case comprises a needle head which releases and closes at least one outlet opening on a valve seat. Furthermore, the valve needle has an arranged in the axial direction of the valve needle needle shaft, at one of End of the needle head is arranged. In order to obtain a good corrosion stability, at least one surface of the valve needle is made of a
austenitischen Stahl gebildet. Austenitische Stähle zeichnen sich durch eine hohe Korrosionsbeständigkeit, selbst bei dauerhaftem Kontakt mit formed austenitic steel. Austenitic steels are characterized by a high corrosion resistance, even with permanent contact with
wasserhaltigen Medien, aus. Somit wird das erfindungsgemäße Magnetventil durch die Verwendung von austenitischem Stahl an mindestens einer Oberfläche der Ventilnadel sehr gut vor korrosiver Degradation geschützt, so dass seine Funktion über einen langen Zeitraum gewährleistet bleibt. Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung. aqueous media, from. Thus, the solenoid valve according to the invention is very well protected by the use of austenitic steel on at least one surface of the valve needle from corrosive degradation, so that its function is ensured over a long period. The dependent claims show preferred developments of the invention.
Gemäß einer vorteilhaften Weiterbildung ist eine Oberfläche des Nadelkopfes aus einem austenitischen Stahl gebildet. Der Nadelkopf erfüllt die Funktion des Verschließens und Freigebens wenigstens einer Auslassöffnung am Ventilsitz und steht daher permanent mit dem zu steuernden Fluid in Kontakt, According to an advantageous development, a surface of the needle head is formed from an austenitic steel. The needle head performs the function of closing and releasing at least one outlet opening on the valve seat and is thus permanently in contact with the fluid to be controlled,
insbesondere, da das Fluid selbst nach dem Schließen der Auslassöffnung(en) nicht vollständig vom Nadelkopf entfernt werden kann. Für einen besonders guten Korrosionsschutz des Magnetventils, ist es daher von Vorteil, die in particular, since the fluid can not be completely removed from the needle head even after closing the outlet opening (s). For a particularly good corrosion protection of the solenoid valve, it is therefore an advantage that
Oberfläche des Nadelkopfes aus austenitischem Stahl zu bilden. Surface of the needle head made of austenitic steel.
Um die Herstellung des Nadelkopfs zu erleichtern und gleichzeitig die To facilitate the production of the needle head while the
Korrosionsbeständigkeit desselben zu maximieren, ist vorteilhaft vorgesehen, dass der Nadelkopf vollständig aus einem austenitischen Stahl gebildet ist. Neben dem Nadelkopf steht auch der Nadelschaft üblicherweise permanent in direktem Kontakt mit dem zu steuernden Fluid. Weiter vorteilhaft ist daher vorgesehen, dass eine Oberfläche des Nadelschafts aus einem austenitischen Stahl gebildet ist. Um die Herstellung des Nadelschafts zu erleichtern und gleichzeitig die To maximize corrosion resistance of the same is advantageously provided that the needle head is formed entirely of an austenitic steel. In addition to the needle head and the needle shaft is usually permanently in direct contact with the fluid to be controlled. Further advantageously, it is therefore provided that a surface of the needle shaft is formed from an austenitic steel. To facilitate the production of the needle shank and at the same time the
Korrosionsbeständigkeit desselben zu maximieren, ist ferner vorteilhaft vorgesehen, dass der Nadelschaft vollständig aus einem austenitischen Stahl gebildet ist. In order to maximize corrosion resistance thereof, it is further advantageously provided that the needle shank is formed entirely of an austenitic steel.
Zur Optimierung der Korrosionsbeständigkeit der gesamten Ventilnadel, ist es insbesondere von Vorteil, wenn sowohl mindestens eine Oberfläche des Nadelschafts als auch eine Oberfläche des Nadelkopfes aus einem austenitischen Stahl gebildet sind. Weiter vorteilhaft bestehen sowohl der Nadelkopf als auch das Nadelschaft aus austenitischem Stahl. Dies erleichtert auch die Verbindungsbildung zwischen dem Nadelkopf und dem Nadelschaft, die dann sehr leicht durch eine stoffschlüssige Verbindung, insbesondere durch eine Schweißverbindung, herstellbar ist. To optimize the corrosion resistance of the entire valve needle, it is particularly advantageous if both at least one surface of the needle shaft and a surface of the needle head from a austenitic steel are formed. Further advantageously, both the needle head and the needle shaft made of austenitic steel. This also facilitates the connection formation between the needle head and the needle shaft, which is then very easy to produce by a cohesive connection, in particular by a welded connection.
Austenitische Stähle können im Vergleich zu herkömmlichen martensitischen Stählen eine geringere mechanische Belastbarkeit aufweisen. Um auch hohen mechanischen Belastungen zu widerstehen, ist der austenitische Stahl des Magnetventils vorzugsweise kolsterisiert. Austenitic steels may have lower mechanical strength compared to conventional martensitic steels. In order to withstand high mechanical loads, the austenitic steel of the solenoid valve is preferably kolsterisiert.
Die mechanischen Eigenschaften, und insbesondere die Verschleißbeständigkeit des Magnetventils, können ferner vorteilhaft dadurch verbessert werden, dass der austenitische Stahl mit einer DLC-Schicht beschichtet ist. DLC, also diamond-like-carbon, ist eine kohlenstoffhaltige Beschichtung mit spezifischer Struktur, die sich durch eine gute Kratzbeständigkeit und hohe Härte auszeichnet und daher sehr gut zur Optimierung der mechanischen Eigenschaften, und insbesondere der Oberflächeneigenschaften des Magnetventils, geeignet ist. The mechanical properties, and in particular the wear resistance of the solenoid valve, can also advantageously be improved by coating the austenitic steel with a DLC layer. DLC, ie diamond-like-carbon, is a carbon-containing coating with a specific structure, which is characterized by good scratch resistance and high hardness and is therefore very well suited for optimizing the mechanical properties, and in particular the surface properties of the solenoid valve.
Gemäß einer weiteren vorteilhaften Weiterbildung ist auch ein die Ventilnadel zumindest teilweise umgebendes Bauteil, insbesondere ein Ventilgehäuse, aus einem austenitischen Stahl gebildet. According to a further advantageous refinement, a component that at least partially surrounds the valve needle, in particular a valve housing, is formed from an austenitic steel.
Ebenfalls erfindungsgemäß wird auch eine Brennkraftmaschine offenbart, die ein wie vorstehend beschriebenes Magnetventil umfasst. Durch die Verwendung des erfindungsgemäßen Magnetventils kann auch die Korrosionsbeständigkeit der Brennkraftmaschine bei dauerhaft stabiler und zuverlässiger Laufleistung verbessert werden. Also according to the invention, an internal combustion engine is disclosed which comprises a solenoid valve as described above. By using the solenoid valve according to the invention, the corrosion resistance of the internal combustion engine can be improved with durable stable and reliable mileage.
Des Weiteren erfindungsgemäß wird auch ein Verfahren zur Herstellung eines Magnetventils beschrieben. Das herzustellende Magnetventil umfasst eine Ventilnadel mit einem Nadelkopf und einem am Nadelkopf in Axialrichtung der Ventilnadel angeordneten Nadelschaft. Der Nadelkopf hat die Funktion, an einem Ventilsitz wenigstens eine Auslassöffnung freizugeben und zu verschließen. Gemäß dem erfindungsgemäßen Verfahren ist ein Schritt des Bildens Furthermore, according to the invention, a method for producing a solenoid valve is also described. The solenoid valve to be produced comprises a valve needle with a needle head and a needle shaft arranged on the needle head in the axial direction of the valve needle. The needle head has the function of releasing and closing at least one outlet opening on a valve seat. According to the method of the invention, a step of forming is
mindestens einer Oberfläche der Ventilnadel aus einem austenitischen Stahl vorgesehen. Durch das Bilden mindestens einer Oberfläche der Ventilnadel aus austenitischem Stahl, kann, unter Verwendung von üblichen Standardprozessen, die Korrosionsbeständigkeit des Magnetventils deutlich verbessert werden. provided at least one surface of the valve needle made of an austenitic steel. By forming at least one surface of the valve needle Austenitic steel, the corrosion resistance of the solenoid valve can be significantly improved using standard standard processes.
Insbesondere werden mindestens eine Oberfläche des Nadelkopfes und/oder eine Oberfläche des Nadelschafts aus austenitischem Stahl gebildet, wobei der Nadelkopf und/oder der Nadelschaft auch vollständig aus austenitischem Stahl gebildet werden können. Dies erleichtert den Herstellprozess, da nur ein In particular, at least one surface of the needle head and / or a surface of the needle shaft are formed of austenitic steel, and the needle head and / or the needle shaft can be formed entirely of austenitic steel. This facilitates the manufacturing process, since only one
Werkstoff, also der austenitische Stahl, verarbeitet werden muss. Material, so the austenitic steel, must be processed.
Die für das erfindungsgemäße Magnetventil beschriebenen Vorteile, vorteilhaften Effekte und Weiterbildungen finden auch Anwendung auf die erfindungsgemäße Brennkraftmaschine und das erfindungsgemäße Verfahren zur Herstellung eines Magnetventils. The advantages, advantageous effects and developments described for the solenoid valve according to the invention are also applied to the internal combustion engine according to the invention and to the method according to the invention for producing a solenoid valve.
Zur Verbesserung der Härte des austenitischen Stahls, und damit insgesamt der mechanischen Stabilität des Magnetventils, wird der austenitische Stahl vorzugsweise kolsterisiert. To improve the hardness of the austenitic steel, and thus the overall mechanical stability of the solenoid valve, the austenitic steel is preferably kolsterisiert.
Darüber hinaus kann die Verschleißbeständigkeit des Magnetventils noch gesteigert werden, indem das Verfahren insbesondere einen Schritt des In addition, the wear resistance of the solenoid valve can be further increased by the method in particular a step of
Aufbringens einer DLC-Schicht auf den austenitischen Stahl vorsieht. Applying a DLC layer to the austenitic steel provides.
Kurze Beschreibung der Zeichnung Short description of the drawing
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung unter Bezugnahme auf die begleitende Zeichnung im Detail beschrieben. In der Zeichnung ist: Hereinafter, a preferred embodiment of the invention will be described in detail with reference to the accompanying drawings. In the drawing is:
Figur 1 eine schematische Schnittansicht eines Magnetventils gemäß einem Ausführungsbeispiel der Erfindung. Figure 1 is a schematic sectional view of a solenoid valve according to an embodiment of the invention.
Wie aus Figur 1 ersichtlich ist, umfasst das Magnetventil 1 eine Ventilnadel 2. Die Ventilnadel 2 weist einen Nadelkopf 3 und einen am Nadelkopf 3 in Axialrichtung X-X der Ventilnadel 2 angeordneten Nadelschaft 4 auf. Der Nadelschaft 4 und der Nadelkopf 3 sind mittels einer Schweißverbindung 14 stoffschlüssig miteinander verbunden. Die Ventilnadel 2 ist von einem Ventilgehäuse 6 umgeben, wobei zwischen dem Ventilgehäuse 6 und der Ventilnadel 2 ein Fluidpfad 7 zum Leiten eines Fluids vorhanden ist. As can be seen from FIG. 1, the solenoid valve 1 comprises a valve needle 2. The valve needle 2 has a needle head 3 and a needle shaft 4 arranged on the needle head 3 in the axial direction XX of the valve needle 2. The needle shaft 4 and the needle head 3 are integrally connected to each other by means of a welded joint 14. The valve needle 2 is surrounded by a valve housing 6, wherein between the valve housing 6 and the valve needle 2, a fluid path 7 for guiding a fluid is present.
Ein Rückstellelement 1 1 ist mit der Ventilnadel 2 verbunden, um die Ventilnadel 2 in die Ausgangsposition zurückzustellen. Figur 1 zeigt dabei die A return element 1 1 is connected to the valve needle 2 to reset the valve needle 2 in the starting position. FIG. 1 shows the
Ausgangsposition des Magnetventils 1 , welche in diesem Ausführungsbeispiel die geschlossene Position des Magnetventils 1 ist. Hierbei liegt die Ventilnadel 2 auf einem Ventilsitz 15 auf, wodurch eine Verbindung zu Auslassöffnungen 5 unterbrochen ist. Der Nadelkopf 3, der in diesem Ausführungsbeispiel als Ventilkugel ausgeführt ist, verschließt damit in der Ausgangsposition des Magnetventils 1 die Auslassöffnungen 5. Starting position of the solenoid valve 1, which is the closed position of the solenoid valve 1 in this embodiment. In this case, the valve needle 2 rests on a valve seat 15, whereby a connection to the outlet openings 5 is interrupted. The needle head 3, which is designed as a valve ball in this embodiment, thus closes in the initial position of the solenoid valve 1, the outlet openings. 5
Das Magnetventil 1 weist ferner einen Magnetanker 10 sowie einen Innenpol 12 auf. Ferner ist eine Spule 13 vorgesehen, welche bei Bestromung den The solenoid valve 1 further comprises a magnet armature 10 and an inner pole 12. Further, a coil 13 is provided, which when energized the
Magnetanker 10 in Richtung des Innenpols 12 anzieht. Magnetic armature 10 in the direction of the inner pole 12 attracts.
In dem in Figur 1 dargestellten Ausführungsbeispiel sind eine Oberfläche des Nadelschafts 4 und eine Oberfläche des Nadelkopfes 3 aus einem austenitischen Stahl gebildet. Hierdurch wird eine sehr gute Korrosionsbeständigkeit der Ventilnadel 2 erreicht. Auch lässt sich somit die Schweißverbindung 14 einfach und stabil ausführen. Insbesondere sind der Nadelkopf 3 und der Nadelschaft 4 vollständig aus austenitischem Stahl gebildet. In the embodiment shown in Figure 1, a surface of the needle shaft 4 and a surface of the needle head 3 are formed of an austenitic steel. As a result, a very good corrosion resistance of the valve needle 2 is achieved. Also, thus, the welded joint 14 can be performed easily and stably. In particular, the needle head 3 and the needle shaft 4 are formed entirely of austenitic steel.
Die Ventilnadel 2 umfasst ferner einen ersten Ankeranschlag 8 und einen zweiten Ankeranschlag 9. Der Magnetanker 10 ist dabei zwischen dem ersten und zweiten Ankeranschlag 8, 9 angeordnet. Hierbei ist an der Ventilnadel 2 ein Führungsbereich 16 für den Magnetanker 10 vorgesehen. The valve needle 2 further comprises a first armature stop 8 and a second armature stop 9. The magnet armature 10 is arranged between the first and second armature stop 8, 9. In this case, a guide region 16 for the magnet armature 10 is provided on the valve needle 2.
Vorteilhaft sind weitere Bauteile der Ventilnadel 2, insbesondere auch das Ventilgehäuse 6, aus austenitischem Stahl hergestellt. Diese Ausführung bietet eine besonders hohe, dauerhafte Korrosionsbeständigkeit, insbesondere auch gegenüber wasserhaltigen Fluiden. Advantageously, further components of the valve needle 2, in particular also the valve housing 6, are made of austenitic steel. This version offers a particularly high, durable corrosion resistance, especially against hydrous fluids.
Um die mechanische Stabilität und insbesondere die Härteeigenschaften zu verbessern, ist der verwendete austenitische Stahl kolsterisiert. Die In order to improve the mechanical stability and in particular the hardness properties, the used austenitic steel is kolsterisiert. The
Verschleißbeständigkeit des austenitischen Stahls kann ferner durch eine DLC- Beschichtung gesteigert werden. Abrasion resistance of the austenitic steel may be further enhanced by a DLC Coating be increased.
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019538123A JP6989607B2 (en) | 2017-01-27 | 2018-01-08 | Solenoid valves, internal combustion engines with solenoid valves and methods for manufacturing solenoid valves |
| CN201880008698.8A CN110226064A (en) | 2017-01-27 | 2018-01-08 | Solenoid valve, the internal combustion engine with solenoid valve and the method for manufacturing solenoid valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017201300.1 | 2017-01-27 | ||
| DE102017201300.1A DE102017201300A1 (en) | 2017-01-27 | 2017-01-27 | Solenoid valve, internal combustion engine with solenoid valve and method for producing a solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018137913A1 true WO2018137913A1 (en) | 2018-08-02 |
Family
ID=61007676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/050319 Ceased WO2018137913A1 (en) | 2017-01-27 | 2018-01-08 | Solenoid valve, internal combustion engine comprising a solenoid valve, and method for producing a solenoid valve |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6989607B2 (en) |
| CN (1) | CN110226064A (en) |
| DE (1) | DE102017201300A1 (en) |
| WO (1) | WO2018137913A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019215643A1 (en) * | 2019-10-11 | 2021-04-15 | Robert Bosch Gmbh | Injector |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58174765A (en) * | 1982-04-05 | 1983-10-13 | Hitachi Ltd | steam valve |
| WO2000028119A2 (en) * | 1998-11-10 | 2000-05-18 | E.I. Du Pont De Nemours And Company | Apparatus for high speed beaming of elastomeric yarns |
| DE102005037951A1 (en) * | 2005-08-11 | 2007-02-15 | Robert Bosch Gmbh | Housing for automotive fuel injection valve has heat-treated sleeve with modified magnetic characteristics |
| EP2811150A1 (en) * | 2013-06-05 | 2014-12-10 | Robert Bosch Gmbh | Fuel injection valve |
| EP2821680A1 (en) * | 2012-02-28 | 2015-01-07 | Kitz Corporation | Trunnion ball valve for high pressure, and hydrogen station |
| DE102013223458A1 (en) * | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Valve for metering fluid |
| DE102014217507A1 (en) * | 2014-09-02 | 2016-03-03 | Robert Bosch Gmbh | Valve and method of manufacturing a valve |
| DE102015211723A1 (en) * | 2015-06-24 | 2016-12-29 | Robert Bosch Gmbh | Injector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074404U (en) * | 1990-04-20 | 1991-04-03 | 钱志新 | New structure of small stop valve and throttle valve |
| JP2004360762A (en) * | 2003-06-03 | 2004-12-24 | Saginomiya Seisakusho Inc | Electric valve |
| JP4143097B2 (en) * | 2006-04-28 | 2008-09-03 | 三菱電機株式会社 | Electromagnetic fuel injection valve |
| CN205101570U (en) * | 2015-10-16 | 2016-03-23 | 浙江科海仪表有限公司 | Formula of relying on oneself low temperature governing valve |
-
2017
- 2017-01-27 DE DE102017201300.1A patent/DE102017201300A1/en active Pending
-
2018
- 2018-01-08 CN CN201880008698.8A patent/CN110226064A/en active Pending
- 2018-01-08 JP JP2019538123A patent/JP6989607B2/en active Active
- 2018-01-08 WO PCT/EP2018/050319 patent/WO2018137913A1/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58174765A (en) * | 1982-04-05 | 1983-10-13 | Hitachi Ltd | steam valve |
| WO2000028119A2 (en) * | 1998-11-10 | 2000-05-18 | E.I. Du Pont De Nemours And Company | Apparatus for high speed beaming of elastomeric yarns |
| DE102005037951A1 (en) * | 2005-08-11 | 2007-02-15 | Robert Bosch Gmbh | Housing for automotive fuel injection valve has heat-treated sleeve with modified magnetic characteristics |
| EP2821680A1 (en) * | 2012-02-28 | 2015-01-07 | Kitz Corporation | Trunnion ball valve for high pressure, and hydrogen station |
| EP2811150A1 (en) * | 2013-06-05 | 2014-12-10 | Robert Bosch Gmbh | Fuel injection valve |
| DE102013223458A1 (en) * | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Valve for metering fluid |
| DE102014217507A1 (en) * | 2014-09-02 | 2016-03-03 | Robert Bosch Gmbh | Valve and method of manufacturing a valve |
| DE102015211723A1 (en) * | 2015-06-24 | 2016-12-29 | Robert Bosch Gmbh | Injector |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017201300A1 (en) | 2018-08-02 |
| JP6989607B2 (en) | 2022-01-05 |
| JP2020514639A (en) | 2020-05-21 |
| CN110226064A (en) | 2019-09-10 |
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