CN106662061B - Fuel injection device with an assembly for connecting a fuel injection valve with a fuel guide part - Google Patents

Abstract

The invention relates to an assembly (3) for connecting a connecting piece (4) of a fuel injection valve (5) to a cup (6) of a fuel guide component (2), wherein a connecting clamp (15) is provided. The connecting clamp (15) connects the connecting piece (4) of the fuel injection valve (5) to the cup (6) in the assembled state. In this case, contact occurs between the connecting piece (4) and the connecting clamp (15) in the assembled state at a contact contour (39) provided on the connecting piece (4) and a contact contour (33) provided on the connecting clamp (15), the contact contours being configured to match one another so as to ensure a support (45) of the connecting piece (4) on the connecting clamp (15) that allows the connecting piece (4) to pivot relative to the longitudinal axis (24) of the cup (6).

Description

Fuel injection with an assembly for connecting a fuel injection valve with a fuel guide component equipment

technical field

The invention relates to an assembly for connecting a fitting part of a fuel injection valve to a cup seat of a fuel guide part and a fuel injection device having a fuel guide part, a fuel injection valve and such an assembly for connecting The fuel injection valve is connected to the cup of the fuel guide part. The invention relates in particular to the field of fuel injection devices for hybrid compression externally ignited internal combustion engines.

Background technique

A fuel injection device for a fuel injection system of an internal combustion engine is known from DE 10 2005 009 740 A1. The fuel injection device has a fuel injection valve, a receiving bore for receiving the fuel injection valve in the cylinder head, and a fuel distribution line with a connecting piece in which the fuel injection valve is inserted partially overlapping. The connecting body is arranged in such a way that the fuel injection valve is held on the connecting body, and all surfaces or walls of the connecting body and the receiving bore of the cylinder head are resting without contact. enter. The connecting body has a tubular design here and has a retaining flange, by means of which the fuel injector snaps onto the housing shoulder from below.

The fuel injection device known from DE 10 2005 009 740 A1 has the disadvantage of a complex construction and the use of several components in some cases.

Contents of the invention

The inventive assembly with the inventive features and the inventive fuel injection system with the inventive features have the advantage that an improved configuration and an improved mode of function can be achieved. In particular, improved properties can be achieved with regard to the holding function or the connection function for connecting the fuel injection valve to the fuel supply component.

Advantageous developments of the assembly and of the fuel injection system described in the present invention can be achieved by means of the measures cited in the application documents.

The fuel injection device is particularly suitable for gasoline direct injection. Furthermore, the assembly of the cup seat for connecting the fuel injection valve to the fuel guide part is particularly suitable for fuel injection systems with direct gasoline injection, wherein the fuel guide part is preferably designed as a fuel distributor, in particular as a fuel distribution rail. Preferably, a plurality of fuel injection valves are held by a corresponding number of cups of the fuel guide part, in particular of the fuel distribution distributor. The fuel distributor can then be used on the one hand to distribute fuel to a plurality of fuel injection valves, in particular high-pressure injection valves. On the other hand, the fuel distributor can also serve here as a common fuel store for the fuel injectors. The fuel injection valve is then advantageously connected to the cup of the fuel distributor via a connecting assembly with corresponding connecting clips. During operation, the fuel injection valve injects the fuel required for the combustion process into the associated combustion chamber, preferably under high pressure. In this case, the fuel can be compressed by a high-pressure pump and delivered in a flow-controlled manner via a high-pressure line into the fuel distributor.

The fuel injection valve is not an essential part of the inventive assembly. In particular, the connection piece can also initially be provided as a separate component which can be connected to the fuel connection of the fuel injection valve. Here too, the possibility exists to advantageously provide an axial fastening region on the fuel connection of the fuel injection valve. This axial fastening region can advantageously be adapted to the respective application. For example, the connection piece can be welded to the sleeve element of the fuel connection of the fuel injection valve with precise position, so that positional tolerances of the fuel injection valve in the combustion chamber can be reduced. A high quality of the positional tolerances of the fuel injection valves in the cylinder head can thus be ensured, which is especially an important prerequisite for emission-optimized combustion. In an alternative embodiment, however, the connection piece can also be formed in one piece with the fuel connection of the fuel injection valve.

Cups and/or fuel guide components do not have to be part of the inventive assembly. In particular, a suitable cup can also be connected to the fuel guide part as a separate component.

The fuel injection valve and/or the cup seat and/or the fuel guide component can therefore also be manufactured and sold independently of the inventive component.

The fastening of the fuel injection valve to the cup is essentially carried out by means of connecting clips. The connecting clip has contact contours which allow positional errors to be compensated without impermissible lateral forces acting on the fuel injection valve. The contact contours on the connecting clip and the contact contours on the connection part form an advantageous support of the fuel injection valve in its suspension. In this case, the connecting clip can be designed to be very rigid and fatigue-resistant, and the fuel injection valve is not stressed even if there are possible shape and position errors in the individual components due to the transverse force-free position compensation.

This fastening principle is particularly well suited in combination with cups, which are advantageously formed by forming, since here the required flange geometry can be formed and cut to the desired fastening geometry. The positional orientation of the fuel injectors and connecting clips can likewise be realized geometrically.

The connecting clip, which serves as a fastening unit, can be inserted in one operation onto the cup and onto the fuel injector or the fuel injector connection part which was previously engaged in the cup.

In this case, an elastic damping element can also be provided, which is arranged between the fuel injection valve or the fuel injection valve connection part and the cup seat. Such an elastic damping element has the advantage that the noise performance of the fuel injection system can be substantially improved, since direct contact, in particular direct metallic contact, between the cup seat and the fuel injection valve or the fuel injection valve connection part is avoided .

By means of the contact contours arranged on the connection part and the contact contours arranged on the connection clip on which the contact between the connection part and the connection clip takes place in the assembled state, an advantageous support of the connection part on the connection clip is ensured, This support permits pivoting of the connection part relative to the longitudinal axis of the cup in that the contact contours are suitably designed to match one another. Various possibilities are conceivable for configuring the contact contour of the connection part and the contact contour of the connection clip, by means of which an advantageous support of the connection part on the connection clip can be achieved.

Advantageously, two degrees of freedom are ensured for the mounting of the connection part on the connecting clip. It is also advantageous if the contact contour of the connecting clip has a first connecting clip partial surface and a second connecting clip partial surface, which lie opposite one another with respect to the longitudinal axis of the cup. It is particularly advantageous here if the first connecting clip part surface and the second connecting clip part surface lie together in an imaginary concave surface. In this way, the connection piece can be supported in at least two partial surfaces of the connecting clip in order to ensure a support of the connecting piece on the connecting clip which allows a pivoting of the connecting piece relative to the longitudinal axis of the cup. Here, too, it can be ensured that the bearing has two degrees of freedom. This also enables position compensation without transverse forces, so that the valve is not stressed even in the event of possible shape and position errors in the individual components. At the same time, it is possible for the connecting clip to be designed to be very rigid and fatigue-resistant. Depending on the application, additional reinforcement of the connection clip can also be achieved, which can be achieved, for example, by suitable stabilizing closures.

It is also advantageous if the contact contour of the connecting clip has a third connecting clip partial surface, the connecting clip has a first side part on which the first connecting clip partial surface is formed, the connecting clip has a second side part, On this second side part, a second connecting clip partial surface is formed, the connecting clip has a third side part, on which a third connecting clip partial surface is formed, and the third side part connects the first The side portion is connected to the second side portion. In this way, an additional support of the connection piece via the third connecting clip partial surface can be achieved, in particular while ensuring two degrees of freedom. Furthermore, the connecting clip can thus be configured in a U-shape, which considerably simplifies assembly for connecting the fuel injection valve to the cup.

It is also advantageous here if the connecting clip has an open side which is opposite the third side part with respect to the longitudinal axis of the cup and at least one stabilizing closure is provided for The first side part is connected to the second side part and is applied to the connecting clip on the open side. Additional reinforcement of the connecting clip can be achieved by the stabilizing closure.

Inadmissibly large deformations of the connecting clip can be reliably prevented by a particularly strong connecting clip, possibly reinforced by a stabilizing closure. Large movements of the fuel injector out of the predetermined desired position, which lie within an impermissible range, are thus prevented. This prevents a possible malfunction, for example due to the side parts of the connecting clip being spread apart, in which case the fuel injector is no longer sufficiently supported in the clip and thus visibly tilts out of the neutral position. As a result, impermissible transverse forces, which would occur in such an impermissible tipping situation, do not occur within the fuel injection valve.

In particular, the connection clip can be clamped on its open side by the at least one stabilizing closure so as to be restrained in the region where the deformation is usually greatest. Deformation of the connecting clip is thus reduced or prevented.

Possible deformations of the connecting clip due to hydraulic forces from the internal pressure can also be reduced or prevented here. In this case, the connecting clip preferably closes the open side close to the contact contour, in particular close to the contact contour of the connecting clip.

The stabilizing closure can be configured for the respective application and, corresponding to its configuration, can be suitably fitted for the corresponding application, in particular the installation space.

It is advantageous here that the stabilizing closure can be applied to the connecting clip perpendicular to the longitudinal axis of the cup, wherein the stabilizing closure engages on the one hand with the first side part and on the other hand with the second side part. connect. This enables a simple assembly of the stabilizing closure even in the case of tight spaces between the connecting clip, the cup or the fuel guide part and the fuel injector or the connection piece. In this case, the stabilizing closure can, for example, be clamped onto the connecting clip and in this case latched onto the side part.

It is also possible that the stabilizing closure can be applied to the connecting clip parallel to the longitudinal axis of the cup, wherein the stabilizing closure grips the first side part from behind on the one hand and the second side part from behind on the other hand. side part. In this configuration, it is additionally also possible to latch into the end position. This can be done, for example, by means of one or more detent hooks which snap into suitable notches on the first side part and/or the second side part. In particular, the stabilizing closure can be pushed onto the connecting clip until it snaps into the end position. Optionally, the stabilizing closure element can also be multifunctionally configured so that it can be fitted both perpendicularly and parallel to the longitudinal axis of the connection part.

Furthermore, it is advantageous with regard to the configuration of the contact contours on the connection part and the connection clip that the contact contour of the connection part has a first connection part partial surface and a second connection part partial surface, when the connection part is aligned with respect to the longitudinal axis, The partial faces of the connection part lie opposite one another with respect to the longitudinal axis of the cup. These joint part partial surfaces of the contact contour of the joint part can here also be partial surfaces of continuous joint part surfaces of the joint part. The first terminal part sub-surface is assigned to the first connecting clip sub-surface, and the second terminal part sub-surface is assigned to the second connecting clip sub-surface.

When forming the joint part partial surfaces, it is advantageous if these joint part partial surfaces lie together in an imaginary convex surface. Further connection part partial surfaces can also be provided here. In particular, the contact contour of the connection part can also have a third connection part partial surface. The third connection piece sub-surface can optionally be assigned to the third connection clip sub-surface.

Advantageously, one or more fuel injection valves can be fastened to the fuel guide part or within the fuel injection system with a small number of components, in particular via a connecting clip or a connecting clip provided with a stabilizing closure. This ensures a robust, fatigue-resistant and also easy-to-assemble structure.

In this case, a small installation space requirement can be achieved in the longitudinal direction relative to the fuel injection valve and/or in the transverse direction. Furthermore, the integrally formed cup enables a low cost and durable construction. In addition, short tolerance chains result, since a small number of parts with tight tolerances can be implemented, which leads to a precise injection valve position in the combustion chamber of the internal combustion engine.

Furthermore, an improved noise performance can be achieved by using damping elements. An integrated positional orientation for the fuel injectors can be achieved here.

Due to the special contact geometry between the fuel injection valve or the connection part and the connecting clip, a lateral force-free installation is possible even when positional errors may exist. Furthermore, a simple detachment of the fastening, in particular of a connecting clip, which allows a simple replacement of the fuel injection valve or disassembly for a function check or the like, is possible.

In addition, deep-drawn cups can be used, which is clearly cost-effective compared to the use of cut-off receivers. Here too, the function of a hold-down device can be realized. In this case, an advantageous mounting of the fuel injection valve with full tolerance compensation can additionally be achieved. In particular, the use of the stabilizing closure prevents possible bending of the connecting clip and thereby significantly reduces tipping of the fuel injection valve with little effort.

Description of drawings

Preferred embodiments of the present invention are further described in the following specification with reference to the accompanying drawings, in which corresponding elements are provided with consistent reference numerals. The accompanying drawings show:

1 is a schematic perspective view corresponding to a first embodiment of the invention of a fuel injection system having an assembly for connecting a connection part of a fuel injection valve to a cup;

Fig. 2 is a brief schematic perspective view of the fuel injection device shown in Fig. 1 of the first embodiment of the present invention, specifically a fuel injection valve;

Fig. 3 corresponds to a schematic perspective view of the connecting clip of the assembly shown in Fig. 1 of the first embodiment;

Fig. 4 corresponds to a schematic cross section of the fuel injection device shown in Fig. 1 according to the first embodiment of the present invention;

FIG. 5 is a schematic cross-section of the fuel injection device shown in FIG. 1 corresponding to a second embodiment of the present invention;

6 is a schematic perspective view corresponding to a third embodiment of the invention of an injection device with an assembly for connecting a fitting part of a fuel injection device with a cup;

7 is a schematic perspective view corresponding to a fourth embodiment of the present invention of a fuel injection device having an assembly for connecting a fitting part of a fuel injection valve with a cup seat;

8 is a schematic perspective view corresponding to a fifth exemplary embodiment of the invention of a fuel injection system with an assembly for connecting a connection part of a fuel injection valve to a cup.

Detailed ways

FIG. 1 shows a schematic perspective view corresponding to a first exemplary embodiment of the invention of a fuel injection system 1 with a fuel guide part 2 and an assembly 3 for connecting a connection part 4 of a fuel injection valve 5 ( FIG. 2 ) to the first exemplary embodiment. The cup 6 of the fuel guide part 2 is connected. The fuel guiding part 2 here has a tubular base body 7 and a cup 6 , wherein, in addition to the cup 6 , further cups are fastened to the tubular base 7 , preferably along the axial extension of the tubular base 7 superior. To simplify the illustration, only a section of the tubular base body 7 is shown here, wherein the tubular base body 7 extends along its axis 8 over a sufficient length.

In this exemplary embodiment, the tubular main body 7 can be part of the fuel-carrying component 2 designed as a fuel distributor 2 , in particular a fuel distribution rail 2 . The interior space 9 of the tubular base body 7 then serves as a fuel accumulator in order to store fuel under high pressure and to distribute the fuel via a corresponding number of cups 6 to a suitable number of fuel injectors 5 . However, the fuel guiding part 2 can also be configured in other ways and/or be used for other applications. Assembly 3 is particularly suitable for fuel distributor 2 . However, the component 3 can also be used for other purposes and can be designed accordingly in this respect.

The assembly 3 has a connection clip 15 . Furthermore, the assembly 3 has, in this exemplary embodiment, the connection piece 4 of the fuel injector 5 and the cup 6 of the fuel guide part 2 . The connector piece 4 is connected to the cup-shaped seat 6 via a connecting clip 15 . The connecting clip 15 has a first side part 16 , a second side part 17 and a third side part 18 . The first side portion 16 and the second side portion 17 are connected to each other by a third side portion 18 . The connecting clip 15 has a U-shaped configuration because the side parts 16, 17, 18 are attached to each other in a U-shape. Here, an angle of approximately 90° is formed between the first side part 16 and the third side part 18 . Furthermore, an angle of approximately 90° is also formed between the second side portion 17 and the third side portion 18 . The side parts 16, 17 face each other.

In this configuration, the connection clip 15 has an open side 19 . The open side 19 of the connecting clip 15 can be closed to a certain extent by a stabilizing closure 20 , as further described with reference to FIGS. 6 to 8 . Such a stabilizing closure 20 is however not required. Furthermore, the connecting clip 15 can also be designed such that a stabilizing closure 20 can be optionally mounted. A wider range of applications can thus be achieved.

The connecting part 4 has a collar 21 which is able to fix the connecting part 4 in the fuel injection valve 5 . Here too, the connecting piece 4 can be used for different fuel injectors 5 within the framework of a modular construction. Correspondingly, different connecting pieces 4 can also be adapted within the framework of a modular construction to different pilot fuel elements 2 .

In this exemplary embodiment, the connection piece 4 is formed in one piece with the fuel connection 11 . However, it is also possible to provide a multi-part design, in which the rest of the fuel injection valve can be positioned via the axial fastening area 10 in that the connecting part 4 is welded, for example positionally precisely, in the axial fastening area 10 . On the sleeve element 12 of the fuel connection 11 .

FIG. 2 shows the fuel injection system 1 with the fuel injection valve 5 of the first exemplary embodiment of the invention shown in FIG. 1 in a simplified schematic perspective view. In this case, the connecting piece 4 is integrated in the fuel injector 5 . The connecting ring 22 of the connector part 4 is connected to the connecting ring 23 of the cup 6 via the connecting clip 15 . Cup 6 here defines a longitudinal axis 24 . Fuel injector 5 is aligned relative to longitudinal axis 24 . However, fuel injector 5 is permitted to pivot relative to longitudinal axis 24 .

In this exemplary embodiment, the fuel injector 5 has a connection piece 25 , preferably made of plastic, into which an electrical plug of a connection line to the controller can be snapped into place. The connection piece 25 can be formed, for example, by plastic injection molding. Cams 26 for the azimuthal orientation of fuel injector 5 are also formed here. In the assembled state, the projections 26 engage in recesses provided on the connecting collar 23 of the cup 6 .

FIG. 3 shows the connecting clip 15 of the assembly 3 shown in FIG. 1 in a schematic perspective view corresponding to the first exemplary embodiment. In this case, the connecting clip 15 has openings 30 , 31 , 32 formed in the side parts 16 , 17 , 18 . Through the openings 30 to 32 , the connecting collar 22 of the connection part 4 and the connecting collar 23 of the cup 6 can extend completely or partially in the radial direction. A high mechanical stability of the connection can thus be achieved. Furthermore, assembly and control of the realized connections are thus simplified. A contact contour 33 is provided on the connecting clip 15 , which has a first connecting clip partial surface 34 , a second connecting clip partial surface 35 and a third connecting clip partial surface 36 . The connecting clip partial surfaces 34 to 36 are arranged here on the side parts 16 to 18 in the region of the openings 30 to 32 . The first connecting clip part surface 34 and the second connecting clip part surface 35 lie opposite one another with respect to the longitudinal axis 24 . In this case, the connecting clip partial surfaces 34 to 36 lie together in an imaginary concave (concave lens-shaped) surface.

FIG. 4 shows a simplified schematic section through the fuel injection system shown in FIG. 1 , corresponding to a first exemplary embodiment of the invention. In the assembled state, the connecting collar 22 of the connection part 4 lies with its edge region 38 in sections in the side parts 16 , 17 , 18 . Here, a contact contour 39 is formed on the edge region 38 of the connection collar 22 of the connection part 4 , which includes a first connection part partial surface 40 , a second connection part partial surface 41 and a (not indicated) third Partial faces of connector parts. In this case, the first connection part part surface 40 is assigned to the first connecting clip part surface 34 . The second terminal part partial surface 41 is assigned to the second connecting clip partial surface 35 . The third terminal part partial surface of the contact contour 39 of the terminal part 4 is assigned to the third connecting clip partial surface 36 . In this case, if the connection part 4 is aligned with respect to the longitudinal axis 24, as shown in FIG. The longitudinal axes 24 of the cups 6 lie opposite each other. The partial surfaces of the connection elements can lie together in an imaginary convex surface 40 , 41 .

Through the interaction between the first connecting clip part surface 34 and the second connecting clip part surface 35 of the connecting clip 15 on the one hand and the first connecting part part surface 40 and the second connecting part part surface 41 of the connecting part 4 on the other hand , ensuring the support 45 of the connector piece 4 on the connecting clip 15 . The bearing 45 is described here by the bearing center point of rotation 45 . This results in a first degree of freedom 46 , which is illustrated by a double arrow 46 . In this case, a rotation or pivoting of the connection part 4 relative to the longitudinal axis 24 according to a first degree of freedom (double arrow) 46 is possible.

In addition, a further second degree of freedom 47 is achieved with this cooperation. Corresponding to the first degree of freedom 46 , a pivoting or rotation of the connection part 4 according to a second degree of freedom (double arrow) 47 is also possible.

The bearing 45 , which is described by the center point of rotation 45 of the bearing, is here also supported on the third side part 18 by the cooperation of the third joint part part surface and the third connecting clip part surface 36 .

This thus ensures a bearing 45 of the connection part 4 on the connecting clip 15 such that a pivoting of the connection part 4 about the longitudinal axis 24 of the cup 6 is possible. To this end, the contact contour 39 provided on the connection part 4 and the contact contour 33 provided on the connecting clip 15 (on these two contact contours the contact between the connection part 4 and the connecting clip 15 occurs in the assembled state) like this The mutually adapted configuration ensures a support 45 of the connection part 4 on the connecting clip 15 , preferably with a first degree of freedom 46 and a second degree of freedom 47 .

Furthermore, a sealing ring 50 and a support ring 51 are provided, which enable a seal between the connection part 4 and the cup 6 . Fuel can thus be conducted via bore 52 extending through the wall of cup 6 into interior 53 and from there through fuel channel 54 of connecting piece 25 into the interior of fuel injector 5 .

FIG. 5 shows a brief schematic section through the fuel injection system 1 shown in FIG. 1 corresponding to a second exemplary embodiment of the invention. In this exemplary embodiment, the assembly 3 has a damping element 60 which is arranged between the connecting collar 22 of the connection part 4 and the connecting collar 23 of the cup 6 . In this case, a recess 61 can be provided on the connecting collar 22 of the connection part 4 , into which recess the damping element 60 is partially inserted. Corresponding depressions can also be provided additionally or alternatively on the connecting collar 23 of the cup 6 . The damping element 60 is designed as an elastic damping element 60 . The damping element 60 improves the noise behavior of the fuel injection system 1 since direct metallic contact between the connection piece 4 and the cup 6 in the region of the connecting rings 22 , 23 is avoided. However, the elastically deformable damping element 60 can allow pivoting corresponding to the degrees of freedom 46 , 47 .

FIG. 6 shows an injection system with an assembly 3 for connecting a connection part 4 of a fuel injection valve 5 to a cup 6 in a simplified schematic perspective view corresponding to a third exemplary embodiment of the invention. In this embodiment, the assembly 3 additionally has a stabilizing closure 20 . The stabilizing closure 20 is mounted here on the open side 19 of the connecting clip 15 . The connection clip 15 is closed by a stabilizing closure 20 so that the mechanical strength is increased. In particular, bending of the side parts 16 , 17 can be prevented or reduced when a force occurs, for example along the longitudinal axis 24 . In this way, for example, an axial force can be exerted on the connecting clip parts 34 to 36 by the high pressure of the fuel. Twisting and/or bending of the side portions 16 , 17 would then be possible without the stabilizing closure 20 . Because the torsional strength and bending strength are greater near the third side portion 18 than near the opening side 19 .

In this exemplary embodiment, the stabilizing closure 20 is preferably applied to the connecting clip 15 in a mounting direction 62 perpendicular to the longitudinal axis 24 and directed towards the longitudinal axis 24 . This assembly has the advantage that it can be carried out easily and generally also in confined spaces. The stabilizing closure 20 can be snapped onto the first side part 16 on the one hand and onto the second side part 17 on the other hand, so that the first side part 16 and the second side part 17 are grasped from behind The fixed edges 63,64 of.

FIG. 7 shows a schematic perspective view corresponding to a fourth exemplary embodiment of the invention of a fuel injection system 1 with an assembly 3 for connecting a connection part 4 of a fuel injection valve 5 to a cup 6 . In this embodiment, the assembly fastener 20 is assembled in an assembly direction 65 parallel to the longitudinal axis 24 . The stabilizing closure 20 can thus be pushed onto the fastening edges 63 , 64 of the connecting clip 15 . The stabilizing closure 20 can also have a tongue 66 which is assigned on the one hand to the opening 30 of the first side part 16 and on the other hand to the opening 31 of the second side part 17 ( FIG. 3 ). The tongue associated with the opening 31 corresponding to the tongue 66 is covered here and is therefore not marked. Locking into a predetermined mounting position is possible via the tongue 66 . The stabilizing closure 20 is designed in such a way that, in the desired assembly position, the fastening clips 67 , 68 of the stabilizing closure 20 are gripped and fastened from behind further below and closer to the contact contours 33 , 39 Edges 63, 64. This ensures the desired stabilizing effect of the stabilizing closure 20 in the contact region between the contact contours 33 , 39 .

FIG. 8 shows a schematic perspective view corresponding to a fifth exemplary embodiment of the invention of a fuel injection system 1 with an assembly 3 for connecting a connection part 4 of a fuel injection valve 5 to a cup 6 . In this embodiment, the stabilizing closure 20 has a rod 69 at the end of which end elements 70, 71 are arranged. The rod 69 can be configured here as a cylindrical rod. The end elements 70 , 71 can be configured as cylindrical end elements 70 , 71 with a larger diameter than the rod 69 . In this case, a receptacle 72 is formed on the connecting clip 15 in the lower region of the connecting clip 15 , that is to say closer to the contact region between the contact contours 33 , 39 . The receptacle 72 is here formed by recesses 73 , 74 in the first side part 16 and the second side part 17 . In this exemplary embodiment, the stabilizing closure 20 also closes the connecting clip 15 on its open side 19 .

The invention is not limited to the described embodiments.

Claims (10)

1. An assembly (3) for connecting the joint piece (4) of the fuel injection valve (5) and the cup seat (6) of the fuel guide part (2), wherein a connecting clip (15) is provided, the connecting clip In the assembled state, the connection part (4) of the fuel injector (5) is connected to the cup (6), wherein On the contact contour (39) provided on the connector part (4) and on the contact contour (33) provided on the connecting clip (15) in the assembled state between the connector part (4) and the Contact takes place between the connection clips (15), the contact contours being configured in such a way that they match each other in such a way as to ensure that the connection part (4) on the connection clip (15) allows the connection part (4) to support (45) for pivoting of the longitudinal axis (24) of said cup (6), Wherein the contact profile (33) of the connecting clip (15) has a first connecting clip partial surface (34) and a second connecting clip partial surface (35), and these connecting clip partial surfaces are opposite to the cup-shaped seat (6 The longitudinal axes (24) of ) are opposite to each other, and the contact profile (33) of the connecting clip (15) also has a third connecting clip part surface (36), and the connecting clip (15) has a first a side part (16) on which the first connection clip part surface (34) is formed, the connection clip (15) has a second side part (17) on which The second connection clip part surface (35) is configured on the top, and the connection clip (15) has a third side part (18), on which the third connection clip part surface ( 36), and said third side portion (18) connects said first side portion (16) with said second side portion (17). 2. Assembly according to claim 1, characterized in that two degrees of freedom (46, 47) are ensured for the support (45) of the joint piece (4) on the connecting clip (15). 3. The assembly according to claim 1, characterized in that, the first connecting clip partial surface (34) and the second connecting clip partial surface (35) are together in an imaginary concave surface. 4. Assembly according to claim 1, characterized in that the connecting clip (15) has an open side (19) which is relative to the longitudinal axis (24) of the cup (6) Opposite said third side portion (18), and at least one stabilizing closure (20) is provided for securing said first side portion ( 16) is applied to the connection clip (15) in connection with the second side portion (17). 5. The assembly of claim 4, wherein, The stabilizing closure (20) can be applied to the connection clip (15) at least approximately perpendicularly to the longitudinal axis (24) of the cup (6), wherein the stabilizing closure ( 20) forming a snap-in connection with the first side part (16) on the one hand and with the second side part (17) on the other hand, and/or The stabilizing closure (20) can be applied to the connecting clip (15) at least approximately parallel to the longitudinal axis (24) of the cup (6), wherein the stabilizing closure ( 20) Grasp the first side part (16) from behind on the one hand and the second side part (17) from behind on the other hand. 6. Assembly according to any one of claims 1 to 5, characterized in that the contact profile (39) of the joint part (4) has a first joint part partial surface (40) and a second joint part part face (41), when said joint part (4) is aligned with respect to said longitudinal axis (24), said first joint part part face and said second joint part part face are relative to said cup-shaped seat The longitudinal axes (24) of (6) are opposite each other. 7. The assembly according to claim 6, characterized in that the first joint part partial surface (40) and the second joint part partial surface (41) are together in an imaginary convex surface. 8. The assembly according to any one of claims 1 to 5, characterized in that, between the connecting ring (22) of the joint (4) and the connecting ring (22) of the cup (6) 23) At least one damping element (60) is arranged between. 9. A fuel injection device (1) having at least one fuel guide element (2) and at least one fuel injection valve (5), wherein the fuel injection valve (5) is passed through according to claims 1 to 8 The assembly according to any one is connected with the cup (6) of the fuel guiding part (2). 10. The fuel injection device (1 ) according to claim 9, characterized in that the fuel injection device (1 ) is used in a hybrid compression externally ignited internal combustion engine.