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EP3009657B1 - Gehäuseanordnung für ein Kraftstoffeinspritzventil, Kraftstoffeinspritzventil und Verfahren zur Herstellung der Gehäuseanordnung - Google Patents

Gehäuseanordnung für ein Kraftstoffeinspritzventil, Kraftstoffeinspritzventil und Verfahren zur Herstellung der Gehäuseanordnung Download PDF

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Publication number
EP3009657B1
EP3009657B1 EP14189088.9A EP14189088A EP3009657B1 EP 3009657 B1 EP3009657 B1 EP 3009657B1 EP 14189088 A EP14189088 A EP 14189088A EP 3009657 B1 EP3009657 B1 EP 3009657B1
Authority
EP
European Patent Office
Prior art keywords
housing
tube
separation disc
connection
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.)
Not-in-force
Application number
EP14189088.9A
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English (en)
French (fr)
Other versions
EP3009657A1 (de
Inventor
Valerio Polidori
Stefano Filippi
Mauro Grandi
Francesco Lenzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Priority to EP14189088.9A priority Critical patent/EP3009657B1/de
Publication of EP3009657A1 publication Critical patent/EP3009657A1/de
Application granted granted Critical
Publication of EP3009657B1 publication Critical patent/EP3009657B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle

Definitions

  • the invention relates to a housing assembly for a fuel injector, to a fuel injector and to a method for producing the housing assembly.
  • Injectors are in widespread use, in particular for combustion engines, where they may be arranged to dose a fluid into an intake manifold of the combustion engine or directly into a combustion chamber of a cylinder of the combustion engine.
  • DE 19900405 A1 relates to a method for mounting a valve module of a fuel injector for fuel injection systems of internal combustion engines.
  • the fuel injector comprises an electromagnetic actuating element having a magnet coil, an inner pole and an outer magnetic circuit component, as well as a mobile valve closing body which cooperates with a valve seat assigned to a valve seat body.
  • the valve seat body and the inner pole are arranged in an inner opening of a thin-walled valve sleeve and the magnet coil and outer magnetic circuit component are positioned on the outer circumference of the valve sleeve. First the magnetic circuit component is slid on
  • valve seat body is pressed into the inner opening of the valve sleeve such that the pushing in of the valve seat body in itself causes the valve sleeve and magnetic circuit component to be firmly joined.
  • EP 1909339 A1 discloses an actuator module which has a piezoactuator and casing of elastomer layer.
  • the piezoactuator has a piezolement arranged between an actuator head and an actuator foot.
  • the sleeve is made from a heat shrinkable tubing which lies sealed within plant ranges on the actuator head or the actuator foot of the piezoactuator.
  • a press ring is located outside on the heat shrinkable tubing which presses the heat shrinkable tubing on the plant ranges.
  • EP 3 009 655 A1 discloses a fuel injection valve for an internal combustion engine which has a two-part separation ring positioned between the armature and the coil casing in order to guide the magnetic flux.
  • One object of the invention is to create a housing assembly for a reliable and secure function for a fuel injector for a combustion engine to enable a reliable injector performance.
  • a housing assembly for a fuel injector is disclosed.
  • a fuel injector with the housing assembly is disclosed.
  • the fuel injector preferably has a solenoid actuator comprising a coil and an armature.
  • the housing assembly comprises at least the following components: a connection tube, a fuel tube, a housing, a separation disc and a sleeve.
  • the components are arrangeable along a longitudinal axis and comprise penetrating openings respectively with respect to the longitudinal axis, in particular to arrange the components at least partially with each other and to enable a streaming fluid pass during an operation of the assembly.
  • connection tube, the separation disc, and the fuel tube may be arranged along the longitudinal axis to enable a streaming fluid pass through the penetrating openings during an operation of the assembly.
  • connection tube, the fuel tube and the separation disc form a fluid channel.
  • the armature is preferably positioned in the fluid channel, particularly preferably in a region of the connection tube adjacent to the separation disc.
  • the armature is axially displaceable in the fluid channel relative to the connection tube and the axial displaceability is limited by the separation disc.
  • the fuel tube is arranged inside the opening of the housing.
  • the housing may extend circumferentially around a portion of the fuel tube which portion is in particular positioned inside the opening of the housing.
  • the housing is in particular a coil housing for accommodating the coil.
  • the housing is hydraulically separated from the fluid channel by the connection tube, the separation disc and the fuel tube.
  • a magnetic circuit of the solenoid actuator extends from the housing through the separation disc to the armature.
  • the separation disc may be configured to contribute to shaping the magnetic flux of the magnetic circuit.
  • first end of the connection tube at least partially contacts a first side of the separation disc and a second side of the separation disc at least partially contacts the housing.
  • first side and the second side are understood to mean a first surface and a second surface of the separation disc which face in opposite axial directions, preferably at opposite axial ends of the separation disc.
  • the fuel tube is partially arranged inside the opening of the separation disc. Preferably, it axially extends completely through the separation disc.
  • the housing is axially locked in place by means of a form-fit connection with the second side of the separation disc at one axial end of the housing and by means of a form-fit connection with a step of the fuel tube at the opposite axial end of the housing.
  • the housing is pressed against the second side of the separation disc by means of mechanical interaction with the step.
  • the sleeve is configured to surround the housing and the separation disc and is at least partially connected to an outside surface of the connection tube or of the separation disc and to an outside surface of the fuel tube in a mounted configuration of the assembly to fasten the separation disc to the housing.
  • the sleeve fastens the separation disc to the housing in particular by means of blocking axial displacement of the second side of the separation disc away from the step of the fuel tube. This is preferably achieved by means of the connections of the sleeve to the outside surfaces of the connection tube or of the separation disc, respectively, and of the fuel tube.
  • the magnetic circuit of the solenoid actuator may be particularly efficient in this way.
  • the sleeve is a component to fasten the separation disc to the housing and hence prevents or at least decreases a generation of an undesirable air gap between the mentioned components during an operation of the assembly.
  • the separation disc is welded to the fuel tube.
  • the separation disc may tend to move axially away from the housing in a conventional housing assembly. This movement may result in an undesirable air gap that causes a lack of magnetic force during an operation of the injector, which may advantageously be avoided by the housing assembly according to the present invention.
  • the housing assembly with the sleeve as a connecting component, it is not necessary to change other components for example in consideration of a shape or a roughness. In this way, a reliable and secure functioning of the fuel injector can be easily realised.
  • the fuel tube has a circumferential protrusion which forms the step and which is in form-fit engagement with the sleeve to limit displacement of the sleeve in axial direction from the step towards the separation disc.
  • a form-fit connection and/or a welded connection is established between the first side of the separation disc and the connection tube to block axial movement of the separation disc towards the connection tube. In this way, the sleeve is operable to retain the housing in contact with the separation disc in particularly simple and reliable fashion.
  • connection tube and the sleeve are connected by a welding connection.
  • the sleeve is particularly securely connected to the connection tube and hence the risk of contact loss between housing and separation disc during an operation of the injector is particularly small.
  • the welding connecting between the sleeve and the connection tube realises a reliable and competitive way to bond these components and because the sleeve is also connected to the fuel tube, the fuel tube and the housing may be pressed to the separation disc due to the effect of welding shrinkage at the welding connection between sleeve and connection tube. This ensures the contact of the housing to the separation disc and hence prevents or at least decreases an undesirable air gap during an operation of the assembly.
  • the fuel tube and the sleeve are connected by means of a form- and/or force-fit connection. This enables a simple configuration of the assembly to connect the sleeve to the fuel tube and hence to achieve a reliable and secure connection and functioning of the injector.
  • the sleeve may comprise a radially inward extending flange that is in contact with a radial protrusion of the fuel tube to establish the form-fit connection.
  • the flange is in particular positioned at an axial end of the sleeve remote from a contact region of the sleeve with the connection tube or separation disc, respectively.
  • the housing assembly comprises at least one coil - i.e. in particular the at least one coil of the solenoid actuator - that is arranged in a recess of the housing.
  • the fuel injector comprises a valve needle which is at least partially arranged in the opening of the fuel tube and which is configured to prevent a fluid flow through the injector in coaction with a seal seat in a closed position or otherwise to enable it.
  • the fuel injector is an outward opening injector.
  • a method for producing a housing assembly for a fuel injector comprises providing a connection tube, a fuel tube, a housing, a separation disc and a sleeve that comprise penetrating openings respectively with respect to a longitudinal axis.
  • the method further comprises assembling the housing onto the fuel tube from a first direction with respect to the longitudinal axis so that the fuel tube is partially arranged inside the opening of the housing.
  • the method further comprises press-fitting the separation disc and the connection tube onto the fuel tube from the first direction with respect to the longitudinal axis until the separation disc contacts the housing.
  • the method comprises shifting the sleeve onto the fuel tube from a second direction with respect to the longitudinal axis until the sleeve contacts an outside surface of the fuel tube and an outside surface of the connection tube.
  • the method further comprises connecting the sleeve to the connection tube by a welding connection and connecting the separation disc to the fuel tube by a further welding connection.
  • This aspect of the invention describes a method for construction of the assembly for example to create an injector which is enabled to prevent an undesirable air gap and to avoid a lack of force during an operation. This enables a reliable and secure functioning and an improved controlling of the injector.
  • connection tube and the sleeve as well as the separation disc and the fuel tube enable a simple and competitive possibility for construction of the assembly as described above.
  • press-fitting the sleeve onto the fuel tube comprises press-fitting the sleeve onto the fuel tube from the second direction until the sleeve comes in contact with the outside surface of the connection tube and establishes a form-fit connection with the protrusion of the fuel tube at the outside surface of the fuel tube.
  • assembling the housing onto the fuel tube comprises shifting the housing over the fuel tube in the first direction until the housing is in form-fit engagement with the step of the fuel tube which is formed by the protrusion. In this way, an air gap between the housing and the separation disc can be prevented particularly well.
  • welding of the sleeve to the connection tube is done before welding of the separation disc to the fuel tube. Therefore, one function of the sleeve may be to pull down the separation disc to the housing due to the effect of welding shrinkage given by the welding joint between the sleeve and the connection tube. In this way, the second side of the separation disc may be pressed against the housing. A particularly good contact between these two components may be established in this way.
  • the method comprises connecting the separation disc to the connection tube by a further welding connection.
  • This configuration describes a simple and reliable way to connect the mentioned components just by means of welding and hence enables a reliable and competitive way of manufacturing the assembly or the injector as mentioned above.
  • the welding connection between the separation disc and the connection tube is already done before the other both mentioned welding connections.
  • the separation disc is forced in its position and when it is welded to the fuel tube it cannot move away from the housing due to the sleeve that is welded to the connection tube and pulls the connection tube as well as the separation disc in direction to the housing.
  • an injector can be created which enables an improved performance during operation and which in particular makes a contribution to prevent a lack of force and undesirable air gaps or at least decreases it.
  • Figure 1 shows a fuel injector 30 which has a longitudinal axis L and comprises a valve needle 31 and a seal seat 33.
  • the valve needle 31 is arranged axially movable with respect to a longitudinal axis L relative to the seal seat 33.
  • the injector 30 is an outward opening injector 30.
  • the valve needle 31 is biased by a spring element 32 towards the seal seat 33.
  • the valve needle 31 sealingly rests on the seal seat 33 in a closing position due to forces acting on it, amongst others one force being a spring force by the spring element 32.
  • valve needle 31 is axially moved away from its closing position or moved into its closing position and hence a flow of a fluid through the injector 30 is enabled or prevented.
  • One actuating force is exerted by the spring element 32
  • another actuating force is exerted by an actuator in order to move the valve needle 31 with respect to the longitudinal axis L.
  • a hydraulic force which is exerted by the fluid is a further force acting on the valve needle 31.
  • the actuator element may be an electromagnetic actuator, also denoted as solenoid actuator.
  • the actuator comprises a coil 22 which generates a magnetic force on an armature 40.
  • the armature 40 is mechanically coupled to the valve needle 31. It is movable in reciprocating fashion along the longitudinal axis L and is axially displaced towards the coil 22 to move the valve needle 31 away from the closing position.
  • the coil 22 is arranged in a recess 24 of a housing 7.
  • the injector 30 comprises a housing assembly 1, which comprises a connection tube 3, a fuel tube 5, the housing 7, a separation disc 9 and a sleeve 10.
  • These mentioned components comprise several openings 11, 13, 15, 17, 19 to arrange the components at least partially with each other and to enable the streaming fluid pass the assembly 1 and the injector 30.
  • the connection tube 3 comprises the opening 11
  • the fuel tube 5 comprises the opening 13
  • the housing 7 comprises the opening 15
  • the separation disc 9 comprises the opening 17
  • the sleeve 10 comprises the opening 19. Further details of the assembly 1 are illustrated below in the following figures 2 to 4 .
  • the connection tube 3, the fuel tube 5 and the separation disc 9 form a fluid channel.
  • the connection tube 3, the fuel tube 5 and the separation disc 9 hydraulically separate the housing 7from the fluid channel.
  • the sleeve 10 circumferential surrounds the housing 7, the separation disc 9, a portion of the connection tube 3 and a portion of the fuel tube 5.
  • Figure 2 shows an enlarged view of the housing assembly 1.
  • the separation disc 9 is connected to the connection tube 3 by a welding connection 36 and forms a bottom of the connection tube 3.
  • the separation disc 9 is one fluid leading component and forms one part of an exterior wall of the fluid channel.
  • the separation disc 9 has a magnetic function to enable a magnetic coupling between the coil 22 and corresponding movable injector components like the armature 40.
  • the separation disc 9 comprises a first side 23, i.e. a first surface, which forms a bottom area of the connection tube 3 and a second side 25, i.e. a second surface, which faces and contacts the housing 7 in an assembled configuration.
  • the housing 7 is axially locked in place by means of a form-fit connection with the second side 25 of the separation disc 9 at one axial end of the housing 7 and by means of a form-fit connection with a step 140 of the fuel tube 5, i.e. in particular a step 140 of the outside surface 29 of the fuel tube 5, at the opposite axial end of the housing 7.
  • connection tube 3 At a first end 21 of the connection tube 3, adjacent to the separation disc 9, the sleeve 10 is connected to an outside surface 27 of the connection tube 3.
  • the sleeve 10 is connected to the connection tube 3 by means of a welding connection.
  • the sleeve 10 is further connected to an outside surface 29 of the fuel tube 5.
  • the sleeve 10 is connected to the fuel tube 5 due to form fit and/or force fit.
  • the sleeve 10 comprises a radially inward extending flange 12 which is in form-fit engagement with a radially extending circumferential protrusion 14 of the fuel tube 5.
  • connection tube 3 the separation disc 9 and the fuel tube 5 are coupled by the sleeve 10 in such fashion that axial displacement of the second side 25 of the separation disc 9 away from the step 140 of the fuel tube 5 is blocked.
  • This allows to keep the contact of the separation disc 9 to the housing 7. In this way, magnetic losses due to contact loss between the housing 7 and the separation disc 9 during an operation of the assembly 1 or the injector 30 are avoidable.
  • Figures 3a to 3e illustrate method steps of an exemplary method for producing the housing assembly 1.
  • the housing 7 is assembled onto the fuel tube 5 from a first direction D1 with respect to the longitudinal axis L.
  • the fuel tube 5 is shifted into the opening 13 of the housing 7 until a bottom side of the housing 7 contacts a step 140 in the outside surface 29 of the fuel tube 5and establishes a form-fit engagement with the step 140.
  • a subsequent second method step is illustrated in figure 3b .
  • the separation disc 9 and the connection tube 3 are press-fitted onto the fuel tube 5 from the first direction D1 until the second side 25 of the separation disc 9 contacts an upper side of the housing 7 with respect to the longitudinal axis L.
  • the term press-fit is illustrated in this figure 3b by two bold arrows to indicate a force that presses the separation disc 9 to the housing 7.
  • a subsequent third method step is shown in Figure 3c .
  • the sleeve 10 is shifted onto the fuel tube 5 from a second direction D2 with respect to the longitudinal axis L until the sleeve 10 comes in contact with the outside surface 27 of the connection tube 3 at one axial end of the sleeve 10 and establishes a form-fit connection by means of its flange 12 with a protrusion 14 of the fuel tube 5 at the outside surface 29 of the fuel tube 5.
  • the sleeve 10 then contacts the outside surface 27 of the connection tube 3 in the region of the separation disc 9 at the first end 21 of the connection tube 3 and it contacts the protrusion 14 of the fuel tube 5 with its radially inward extending flange 12.
  • the protrusion 14 forms the above mentioned step 140 of the outside surface 29 of the fuel tube 5.
  • the form-fit connection with the protrusion 14 blocks further displacement of the sleeve 10 in the second direction D2 relative to the fuel tube 5.
  • FIG. 3d A subsequent forth method step is illustrated in Figure 3d .
  • a reliable and secure connection between the sleeve 10 and the connection tube 3 is made by a welding connection 26 to fasten the sleeve 10 to the connection tube 3.
  • the connection tube 3 Because of the effect of welding shrinkage at the welding connection 26 and the form-fit connection of the sleeve 10 with the protrusion 14 of the fuel tube 5, the connection tube 3, the separation disc 9 and the fuel tube 5 are pressed together in direction of the longitudinal axis L by the sleeve 10 so that axial displacement of the second side 25 of the separation disc 9 away from the step 140 is blocked an the housing 7 is axially compressed between the second side 25 and the step 140 to avoid an air gap between the separation disc 9 and the housing 7.
  • This enables a simple construction of the assembly 1 and hence a reliable and secure functioning of the injector 30 wherein a lack of force and an undesirable air gap between the separation disc 9 and the housing 7 is prevented or at least decreased.
  • a subsequent fifth method step is shown.
  • a welding connection 28 is produced between the separation disc 9 and the fuel tube 5, for example by laser welding. Producing of this welding connection 28 in principle tends to separate the separation disc 9 from the housing 7 due to welding shrinkage.
  • the sleeve 10 blocks displacement of the separation disc 9 in axial direction away from the step 140, such separation is advantageously avoided. Therefore, an improved magnetic performance of the injector 30 is achieved while at the same time the mechanical stability and the fluid-tightness of the assembly 1 is further enhanced.
  • the sleeve 10 is assembled and welded to the connection tube 3 before the separation disc 9 is welded to the fuel tube 5. This means, that the separation disc 9 is forced in its position and when it is welded to the fuel tube 5 it cannot move away from the housing 7 since the sleeve 10 that is already welded to the connection tube 3 and pulls the connection tube 3 as well as the separation disc 9 down to the housing 7 in the first direction D1 with respect to the longitudinal axis L.
  • the housing assembly 1 is shown in a mounted configuration in different side views corresponding to a side view and a top view of an electrical connector inlet of the housing 7.
  • the sleeve 10 surrounds the housing 7 and the separation disc 9 and is connected to the connection tube 3 by the welding connection 26 and to the fuel tube 5 due form-fit by the radially inward extending flange 12 and the corresponding protrusion 14 which is not visible in these figures.
  • the sleeve 10 further comprises a recess 35 for reasons of electrical connections for example which is represented by an electrical connector 38.
  • a recess 35 may be useful to expose the electrical connector inlet of the housing 7.
  • the sleeve 10 only partly circumferentially surrounds the housing 7 and the separation disc 9.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (11)

  1. Gehäuseanordnung (1) für ein Kraftstoffeinspritzventil, die folgende Komponenten aufweist:
    - ein Verbindungsrohr (3),
    - ein Kraftstoffrohr (5),
    - ein Gehäuse (7),
    - eine Trennscheibe (9) und
    - eine Hülse (10),
    wobei
    - das Verbindungsrohr (3), die Trennscheibe (9) und das Kraftstoffrohr (5) jeweils eine Durchgangsöffnung (11, 13, 17) in Bezug auf eine Längsachse (L) aufweisen und entlang der Längsachse (L) angeordnet sind, um einem strömenden Fluid zu ermöglichen, während eines Betriebs der Anordnung (1) durch die Durchgangsöffnungen (11, 13, 17) zu passieren,
    - das Kraftstoffrohr (5) teilweise in der Öffnung (17) der Trennscheibe (9) angeordnet ist,
    - das Gehäuse (7) eine Durchgangsöffnung (15) in Bezug auf die Längsachse (L) aufweist und sich umlaufend um einen Teil des Kraftstoffrohrs (5) erstreckt, das in der Öffnung (15) des Gehäuses (7) positioniert ist,
    - ein erstes Ende (21) des Verbindungsrohrs (3) zumindest teilweise mit einer ersten Seite (23) der Trennscheibe (9) in Kontakt ist und eine zweite Seite (25) der Trennscheibe (9) zumindest teilweise mit dem Gehäuse (7) in Kontakt ist, und
    - die Hülse (10) ausgebildet ist, das Gehäuse (7) und die Trennscheibe (9) zu umgeben und zumindest teilweise mit einer Außenfläche (27) des Verbindungsrohrs (3) oder der Trennscheibe (9) und mit einer Außenfläche (29) des Kraftstoffrohrs (5) verbunden ist, um die Trennscheibe (9) an dem Gehäuse (7) zu befestigen, wobei das Verbindungsrohr (3) und die Hülse (10) durch eine Schweißverbindung (26) verbunden sind und das Verbindungsrohr (3) und die Trennscheibe (9) durch eine Schweißverbindung (36) verbunden sind.
  2. Gehäuseanordnung (1) nach einem der vorhergehenden Ansprüche, wobei
    - das Gehäuse (7) mittels einer formschlüssigen Verbindung mit der zweiten Seite (25) der Trennscheibe (9) an einem axialen Ende des Gehäuses (7) und mittels einer formschlüssigen Verbindung mit einem Absatz (140) des Kraftstoffrohrs (5) an dem gegenüberliegenden axialen Ende des Gehäuses (7) axial eingerastet ist und
    - ein axialer Versatz der zweiten Seite (25) der Trennscheibe (9) weg von dem Absatz des Kraftstoffrohrs (5) mittels der Verbindungen der Hülse (10) mit den Außenflächen (27, 29) des Verbindungsrohrs (3) bzw. der Trennscheibe (9) und des Kraftstoffrohrs (5) blockiert ist.
  3. Gehäuseanordnung (1) nach einem der vorhergehenden Ansprüche, wobei das Kraftstoffrohr (5) einen umlaufenden Vorsprung (14) aufweist, der den Absatz (140) ausbildet und der in formschlüssigem Eingriff mit der Hülse (10) ist, um einen Versatz der Hülse (10) in axialer Richtung von dem Absatz (140) in Richtung der Trennscheibe (9) zu begrenzen.
  4. Gehäuseanordnung (1) nach einem der vorhergehenden Ansprüche, wobei das Kraftstoffrohr (5) und die Hülse (10) mithilfe einer form- und /oder kraftschlüssigen Verbindung verbunden sind.
  5. Gehäuseanordnung (1) nach einem der vorhergehenden Ansprüche, die mindestens eine Spule (22) aufweist, die in einer Vertiefung (24) des Gehäuses (7) angeordnet ist.
  6. Einspritzventil (30) für einen Verbrennungsmotor, das aufweist
    - eine Gehäuseanordnung (1) nach einem der vorhergehenden Ansprüche, und
    - eine Ventilnadel (31) die zumindest teilweise in der Öffnung (13) des Kraftstoffrohrs (5) angeordnet ist und die ausgebildet ist, eine Fluidströmung durch das Einspritzventil (30) unter Zusammenwirken mit einem Dichtungssitz (33) in einer geschlossenen Position zu verhindern oder sie andernfalls zu ermöglichen.
  7. Verfahren zum Herstellen einer Gehäuseanordnung (1) für ein Kraftstoffeinspritzventil, das aufweist
    - Bereitstellen eines Verbindungsrohrs (3), eines Kraftstoffrohrs (5), eines Gehäuses (7), einer Trennscheibe (9) und einer Hülse (10), die jeweils Durchgangsöffnungen (11, 13, 15, 17, 19) in Bezug auf eine Längsachse (L) aufweisen,
    - Zusammenbauen des Gehäuses (7) auf dem Kraftstoffrohr (5) aus einer ersten Richtung (D1) in Bezug auf die Längsachse (L), sodass das Kraftstoffrohr (5) teilweise in der Öffnung (15) des Gehäuses (7) angeordnet ist,
    - Einpressen der Trennscheibe (9) und des Verbindungsrohrs (3) auf das Kraftstoffrohr (5) aus der ersten Richtung (D1) in Bezug auf die Längsachse (L), bis die Trennscheibe (9) mit dem Gehäuse (7) in Kontakt ist,
    - Verschieben der Hülse (10) auf das Kraftstoffrohr (5) aus einer zweiten Richtung (D2) in Bezug auf die Längsachse (L), bis die Hülse (10) in Kontakt mit einer Außenfläche (27) des Verbindungsrohrs (3) kommt und eine form- und/oder eine kraftschlüssige Verbindung mit einem Vorsprung (14) des Kraftstoffrohrs (5) an einer Außenfläche (29) des Kraftstoffrohrs (5) herstellt,
    - Verbinden der Hülse (10) mit dem Verbindungsrohr (3) durch eine Schweißverbindung (26), und
    - Verbinden der Trennscheibe (9) mit dem Kraftstoffrohr (5) durch eine Schweißverbindung (28).
  8. Verfahren nach Anspruch 7, wobei das Zusammenbauen des Gehäuses (7) auf dem Kraftstoffrohr (5) Verschieben des Gehäuses (7) über das Kraftstoffrohr (5) in der ersten Richtung (D1) aufweist, bis das Gehäuse (7) in formschlüssigem Eingriff mit einem Absatz (140) des Kraftstoffrohrs (5) ist, der durch den Vorsprung (14) ausgebildet ist.
  9. Verfahren nach Anspruch 7 oder 8, wobei die Schweißverbindung (26) zwischen der Hülse (10) und dem Verbindungsrohr (3) vor der Schweißverbindung (28) zwischen der Trennscheibe (9) und dem Kraftstoffrohr (5) hergestellt wird.
  10. Verfahren nach einem der Ansprüche 7 bis 9, das Verbinden der Trennscheibe (9) mit dem Verbindungsrohr (3) durch eine Schweißverbindung (36) aufweist.
  11. Verfahren nach Anspruch 10, wobei die Schweißverbindung (36) zwischen der Trennscheibe (9) und dem Verbindungsrohr (3) vor der Schweißverbindung (26) zwischen der Hülse (10) und dem Verbindungsrohr (3) und der Schweißverbindung (28) zwischen der Trennscheibe (9) und dem Kraftstoffrohr (5) hergestellt wird.
EP14189088.9A 2014-10-15 2014-10-15 Gehäuseanordnung für ein Kraftstoffeinspritzventil, Kraftstoffeinspritzventil und Verfahren zur Herstellung der Gehäuseanordnung Not-in-force EP3009657B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14189088.9A EP3009657B1 (de) 2014-10-15 2014-10-15 Gehäuseanordnung für ein Kraftstoffeinspritzventil, Kraftstoffeinspritzventil und Verfahren zur Herstellung der Gehäuseanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14189088.9A EP3009657B1 (de) 2014-10-15 2014-10-15 Gehäuseanordnung für ein Kraftstoffeinspritzventil, Kraftstoffeinspritzventil und Verfahren zur Herstellung der Gehäuseanordnung

Publications (2)

Publication Number Publication Date
EP3009657A1 EP3009657A1 (de) 2016-04-20
EP3009657B1 true EP3009657B1 (de) 2019-03-13

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009655A1 (de) * 2014-10-13 2016-04-20 Continental Automotive GmbH Kraftstoffeinspritzventil für einen Verbrennungsmotor

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Publication number Priority date Publication date Assignee Title
US6240897B1 (en) * 1998-05-22 2001-06-05 William Han Fuel injection valve with a movable valve seat
DE19900405A1 (de) * 1999-01-08 2000-07-13 Bosch Gmbh Robert Verfahren zur Montage einer Ventilbaugruppe eines Brennstoffeinspritzventils
US6561167B2 (en) * 2001-02-16 2003-05-13 Synerject, Llc Air assist fuel injectors
DE102006046829A1 (de) * 2006-10-02 2008-04-03 Robert Bosch Gmbh Aktormodul mit einem umhüllten Piezoaktor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009655A1 (de) * 2014-10-13 2016-04-20 Continental Automotive GmbH Kraftstoffeinspritzventil für einen Verbrennungsmotor

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