A fluid distributor for an injection device, in particular a fuel distributor bar for a fuel injection device of a mixed compression, externally ignited internal combustion engine
By forging the tubular base of the fuel distributor in a single or multi-stage process and setting staggered retaining elements, the problem of insufficient strength of fastening elements in fuel injection equipment is solved, resulting in more stable installation, reduced wear of seals, and improved overall equipment performance.
Patent Information
- Application Number
- CN202080088914.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-12-20
- Filing Date
- 2020-11-17
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2040-11-17
AI Technical Summary
In the forging process of existing fuel injection equipment, the fastening components are not strong enough, resulting in unstable installation and easy wear of seals, which cannot effectively resist hydraulic reaction forces.
The tubular base of the fuel distributor is made by single-stage or multi-stage forging, and the first and second retaining elements are set and staggered along the longitudinal axis of the base. It is constructed into an integral structure with high-quality steel, which reduces the load on the seals and improves the installation stability.
It improves the installation stability of fuel injection equipment, reduces seal wear, lowers the motion load on valves, and optimizes the natural frequency and vibration performance of fluid distributors.
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Figure CN114846234B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to a fluid distributor for an injection device, in particular a fuel distributor rail for a fuel injection device of a mixed compression, externally ignited internal combustion engine, and to an injection device. In particular, the present invention relates to the field of fuel injection devices for mixed compression, externally ignited internal combustion engines, wherein the fuel distributor rail is for example arranged in an engine compartment of a motor vehicle, fastened on a cylinder head of the internal combustion engine and in operation used for directly injecting fuel into the combustion chambers of the internal combustion engine. BACKGROUND
[0002] It is known from the abstract and the drawings of JP 2018-158372 A that the base body for the distributor rail is manufactured by forging. Here, the material is forged off-center, so that on the forged base body five connecting elements and two holding elements are formed by forging, which are drilled after forging.
[0003] In the base body for the distributor rail, which is manufactured according to the method known from the abstract and the drawings of JP 2018-158372 A, the fastening elements configured on the base body by forging and subsequently drilled have a high strength, so that the entire distributor rail can be reliably mounted and fixed with suitable accessories, for example on a cylinder head in an engine compartment. SUMMARY
[0004] According to a first aspect of the present invention, a fluid distributor for an injection device, in particular a fuel distributor rail for a fuel injection device of a mixed compression, externally ignited internal combustion engine, is proposed, having a tubular base body, which is preferably manufactured by single-stage forging or multi-stage forging, wherein a first high-pressure outlet, a second high-pressure outlet and a third high-pressure outlet are provided on the base body, wherein the second high-pressure outlet is arranged offset with a predefined distance in a first direction along a longitudinal axis of the tubular base body relative to the first high-pressure outlet, wherein the third high-pressure outlet is arranged offset with the predefined distance in the first direction along the longitudinal axis relative to the second high-pressure outlet, wherein a first holding element and a second holding element for at least indirectly fastening the base body are provided on the base body, and wherein the first holding element and the second holding element are arranged on the tubular base body such that, viewed along the longitudinal axis, an axis of the first holding element is positioned at most 0.5 times the predefined distance apart from an axis of the first high-pressure outlet in the first direction, and such that, viewed along the longitudinal axis, an axis of the second holding element is positioned at most 0.5 times the predefined distance apart from an axis of the third high-pressure outlet against the first direction.
[0005] According to a second aspect of the application, a injection device, in particular a fuel injection device for a mixed compression, externally ignited internal combustion engine, is proposed, which comprises a fluid distributor according to the application.
[0006] The fluid distributor according to the application and the injection device according to the application have the advantage that an improved configuration and functional approach is achieved. In particular, it is possible to achieve a direct connection of the valve to the high-pressure outlet.
[0007] By means of the measures listed in the preferred embodiments, advantageous refinements of the fluid distributor according to the application and the injection device according to the application are possible.
[0008] The proposed injection device can in particular be configured as a fuel injection device for injecting fuel or a mixture with at least one fuel. Furthermore, the injection device can not only be used for liquid fluids, but if necessary also for gaseous fluids, in particular for the injection of combustible gases.
[0009] In an advantageous manner, the fluid distributor can be fastened to a suitable body by exactly two holding elements, which is directly or indirectly possible, for example, by a suitable holding structure. If the injection device is configured, for example, as a fuel injection device for a motor vehicle, there is often a requirement to fasten the injection device in the engine compartment, in particular on the cylinder head, wherein high loads occur. The term "holding element" here refers to such an element of the fluid distributor, which can be loaded accordingly and on which at least indirect fastening of the fluid distributor on a suitable body, in particular the cylinder head, is achieved.
[0010] Thus, a distinction can be made here between (high-strength) holding elements and, if provided, at least one fastening element for low loads only, for example for fastening a cable harness. The holding elements must generally withstand very high loads. If the holding elements are configured, for example, in the manner of a forging on a tubular base body, the basic material usage must generally be taken into account for this.
[0011] However, a configuration can also be envisaged in principle in which the retaining element is connected to the tubular base body by brazing. In the forged configuration, the material for producing the tubular base body and preferably also for producing the forged retaining element and the high-pressure outlet is cut to size from a circular material. The amount of material then has certain tolerances. The cut-to-size material is placed in a press, which can consist of a lower die half and an upper die half. The die halves here predefine the profile of the forging process, which defines the forged shape of the base body. Even at the lower tolerance end, the profile must be able to be filled 100% during forging. Since the profile of the base body changes locally and an eccentric shaft or a locally greater material requirement can be provided, for example, there is generally a locally varying amount of material, which is moved between the die halves into the gap for receiving the extruded material. The forging profile can thus be achieved in one or more forging stages in a process-reliable manner. Here, it is advantageous to use high-quality material, in particular high-quality steel. Preferably, high-quality steel is used for the configuration of the base body, the high-pressure outlet and the retaining element, wherein an integral configuration is preferably achieved by forging.
[0012] In operation, the retaining element of the fluid distributor counteracts the reaction forces of the valve generated by the hydraulic pressure and thus can advantageously avoid a bending of the tubular base body; in particular, a reaction force directed from the cylinder head to the fluid distributor occurs by the valve being supported on the cylinder head. The movement of the valve relative to the high-pressure outlet is thereby reduced. This in turn reduces the load on the seal between the valve and the high-pressure outlet. Wear of the seal ring or the like is in particular prevented. On the other hand, it is necessary to support the fluid distributor well on the cylinder head so as not to overload the screws, for example, which fix the tubular base body of the fluid distributor on the cylinder head.
[0013] It can be achieved in particular by the proposed configuration that the requirements can be met with only two retaining elements for three high-pressure outlets. Here, the arrangement of the retaining elements on the tubular base body is essential. In particular, the arrangement of the retaining elements on the tubular base body also influences the natural frequency of the fluid distributor, and under vibrational loads the retaining elements and the fastenings associated therewith must hold the fluid distributor firmly in place on the cylinder head, for example.
[0014] According to one configuration, the axis of the first high-pressure outlet, the axis of the second high-pressure outlet, the axis of the third high-pressure outlet, the axis of the first retaining element and the axis of the second retaining element are oriented at least essentially along a second direction, which is perpendicular to the first direction.
[0015] According to an advantageous configuration, the third direction is perpendicular both to the first direction and to the second direction, and, viewed in the third direction, the axis of the first holding element and the axis of the second holding element are located with and against the third direction or against and with the third direction with respect to the longitudinal axis.
[0016] An advantageous orientation or arrangement can also be achieved by the above-mentioned configuration. Preferably, the distance between the axis of the first holding element and the longitudinal axis is minimized in terms of at least one required wall thickness along the third direction, and / or the distance between the axis of the second holding element and the longitudinal axis is minimized in terms of at least one required wall thickness along the third direction. Thereby, the holding elements are arranged as close as possible to the longitudinal axis of the tubular base body.
[0017] With the advantageous configuration according to the application, further optimization is possible. Thereby, in particular a comparable load on the seals, in particular O-rings, on the respective high-pressure outlet can be achieved in order to prevent one of the seals from being overloaded. Depending on the given boundary conditions, in particular the geometric parameters, the positioning of the holding elements can be determined here in an advantageous manner by simulation. Here, one important parameter is a predefined distance, which is predefined, for example, by the cylinder distance in an internal combustion engine having three cylinders.
[0018] According to one configuration, the axis of the first holding element and the axis of the second holding element are positioned along the longitudinal axis such that a deformation of the tubular base body occurring in operation causes comparable, in particular at least approximately equally large in terms of quantity, maximum displacements of the first high-pressure outlet, the second high-pressure outlet and the third high-pressure outlet, respectively, with and against the second direction.
[0019] According to one configuration, the first holding element and the second holding element are arranged on the tubular base body such that, viewed along the longitudinal axis, the axis of the first holding element is positioned at a distance of at most 0.3 times the predefined distance from the axis of the first high-pressure outlet in the first direction, and / or such that, viewed along the longitudinal axis, the axis of the second holding element is positioned at a distance of at most 0.3 times the predefined distance from the axis of the third high-pressure outlet against the first direction.
[0020] According to a further configuration, the first holding element and the second holding element are arranged on the tubular base body such that, viewed along the longitudinal axis, an axis of the first holding element is positioned at a distance of at least 0.1 times the predefined distance from an axis of the first high-pressure outlet in the first direction and / or an axis of the second holding element is positioned at a distance of at least 0.1 times the predefined distance from an axis of the third high-pressure outlet against the first direction.
[0021] Thereby, a particularly advantageous arrangement of the holding elements can be achieved.
[0022] According to one configuration, the first holding element and the second holding element are machined with the tubular base body by means of the single-stage or multi-stage forging and / or the first high-pressure outlet, the second high-pressure outlet and the third high-pressure outlet are machined with the tubular base body by means of the single-stage or multi-stage forging. Thereby, an advantageous configuration of the fluid distributor is achieved, in which an integral configuration is achieved, in particular by means of forging.
[0023] In one possible configuration, the high-pressure outlets are configured as radial high-pressure outlets on the tubular base body. The tubular base body is preferably formed from a corrosion-resistant high-quality steel, in particular from a high-quality steel having the material number 1.4301, 1.4307, 1.4462 or 1.4362.
[0024] According to one advantageous configuration, the tubular base body together with at least the first high-pressure outlet, the second high-pressure outlet and the third high-pressure outlet and / or the first holding element and the second holding element is made of a high-quality steel and / or exactly two holding elements for at least indirect fastening, in particular on a cylinder head, are provided on the tubular base body using the first holding element and the second holding element and / or exactly three high-pressure outlets for direct connection of a valve are provided on the tubular base body using the first high-pressure outlet, the second high-pressure outlet and the third high-pressure outlet.
[0025] This advantageous configuration is particularly suitable for use in Otto engines or for the injection of gasoline and gasoline mixtures. BRIEF DESCRIPTION OF DRAWINGS
[0026] In the following description of preferred embodiments of the application, reference is made to the accompanying drawings, in which identical or similar elements are provided with identical reference symbols. The drawings show:
[0027] Figure 1 In a schematic diagram, an injection device configured as a fuel injection device is shown in accordance with one embodiment of the application, the injection device having a fluid distributor configured as a fuel distributor rail;
[0028] Figure 2 The fluid distributor presented in Figure 1 is shown in a schematic view corresponding to this embodiment of the application along the viewing direction denoted by X2.
[0029] Figure 3 The fluid distributor presented in Figure 1 is shown in a schematic view corresponding to a modified configuration along the viewing direction denoted by X1. DETAILED DESCRIPTION
[0030] Possible configurations of a fuel injection apparatus 100 and of a fluid distributor 1 of the fuel injection apparatus 100 are described with reference to the drawings. In particular, such a fluid distributor 1 can be configured as a fuel distributor rail 1 and be used in a fuel injection apparatus 100 in which fluid is distributed to preferably a plurality of valves (injection valves) 101 to 103, in particular fuel injection valves 101 to 103. Here, the fluid distributor 1 is preferably configured such that a very high load capacity with respect to fluid pressure is given, which fluid is stored in the fluid distributor 1 and is distributed, for example, to the fuel injection valves 101 to 103. The fluid distributor 1 is preferably realized as a forged fluid distributor 1 such that a high load with respect to fluid pressure can be achieved. Thus, here a fluid distributor 1 is examined, the tubular base body 2 of which is forged. It is conceivable that the fluid distributor 1 also has at least one further component which is connected with the base body 2, for example, by screwing or by welding, for example, by fusion welding or brazing.
[0031] Figure 1 A fuel injection apparatus 100 configured as a fuel injection apparatus 100 is shown in a schematic view corresponding to an embodiment of the application, the fuel injection apparatus having a fluid distributor 1 configured as a fuel distributor rail 1. Figure 2 The fluid distributor 1 is shown from the viewing direction denoted by X2 in Figure 1 . For forging, the desired shape of the base body 2 can be predefined in a complex manner. In this embodiment, the tubular base body 2 has a tubular portion 3 which, for the configuration of an inner space 41, is also provided with a longitudinal bore 42 along a longitudinal axis 4, as is shown in Figure 3 . Furthermore, the base body 2 has holding elements 5, 6 which are forged here as eccentric shafts. In this embodiment, the axes 7, 8 of the holding elements 5, 6 are spaced apart from the longitudinal axis 4.
[0032] In this embodiment, the base body 2 is also forged with high-pressure outlets 9 to 11 configured as cup-shaped seats 9 to 11 for connecting the fuel injection valves 101 to 103. The axes 12 to 14 of the high-pressure outlets 9 to 11 intersect the longitudinal axis 4 in this embodiment, as is shown in Figure 3The axis 12.0 of the high-pressure outlet 9 is indicated by the middle.
[0033] Furthermore, at least one connection stub 15 is configured on the base body by means of forging, which connection stub can be used, for example, for connecting a pressure sensor 16. An axial high-pressure inlet 17 is also configured on the tubular portion 3.
[0034] For the purpose of describing the configuration and the mode of functioning, the directions X1, X2, X3 can be defined in accordance with a right-hand system (three-dimensional right-hand system). The direction X1 is oriented here along the longitudinal axis 4. In the assembled state of the fluid distributor 1, the direction X2 points from the longitudinal axis 4 of the tubular base body 2 towards the cylinder head 18 of the internal combustion engine 19. In this embodiment, the axes 7, 8 of the holding elements 5, 6 and the axes 12 to 14 of the high-pressure outlets 9 to 11 are oriented parallel to one another and in the direction X2. The orientation of the direction X3 is obtained by defining the directions X1 and X2, which direction X3 is thus parallel to the upper side 20 of the cylinder head 18 in the assembled state of the fluid distributor 1. The fastening of the fluid distributor 1 on the cylinder head 18 is illustrated schematically by the fastening elements (screws) 30, 31, which engage on one of the holding elements 5, 6 and are oriented along the axes 7, 8, respectively.
[0035] The internal combustion engine 19 has three cylinders 21 to 23. As a result, the distance 24 between the axis 12 of the high-pressure outlet 9 and the axis 13 of the high-pressure outlet 10 or between the axis 13 of the high-pressure outlet 10 and the axis 14 of the high-pressure outlet 11 is predefined, which distance is the cylinder distance 24 in this embodiment.
[0036] In the assembled state, the valves 101 to 103 are supported on the cylinder head 18 in the direction X2 in this embodiment. In this embodiment, counterforces arise in operation, in particular as a result of the hydraulic pressure, which load the valves 101 to 103 against the direction X2, so that an elastic deformation of the tubular base body 2 about the longitudinal axis 4 occurs. In particular, displacements of the high-pressure outlets 9 to 11 in and against the direction X2 arise, which load the respective sealing points of the valves 101 to 103.
[0037] The two holding elements 5, 6 are arranged on the tubular base body 2 in such a way that sufficient fastening can be achieved using only the two holding elements 5, 6, without overloading of the seals. In addition to the orientation of the axes 7, 8 of the holding elements 5, 6 in the direction X2, it is also important here to position along the longitudinal axis 4 of the tubular base body 2.
[0038] A first distance 28 occurs between the axis 12 of the high-pressure outlet 9 and the axis 7 of the holding element 5, viewed along the longitudinal axis 4 in this embodiment. Correspondingly, a second distance 29 occurs between the axis 14 of the high-pressure outlet 11 and the axis 8 of the holding element 6. It is also possible in a modified configuration for at least one of the distances 28, 29 to be at least substantially zero, such that the axis 7 is at least substantially on the axis 12 and / or the axis 8 is at least substantially on the axis 14, viewed along the longitudinal axis 4.
[0039] However, in this embodiment, the first distance 28 and the second distance 29 are predefined to be greater than zero. In this case, the axis 7 of the holding element 5 is always located in the direction X1, viewed from the axis 12 of the high-pressure outlet 9, and the axis 8 of the holding element 6 is always located in the direction opposite to the direction X1, viewed from the axis 14 of the high-pressure outlet 11. Here, the first distance 28 has at most 0.5 times the predefined distance 24 (cylinder distance). Furthermore, the second distance 29 also has at most 0.5 times the predefined distance 24. The first distance 28 and the second distance 29 are not necessarily selected to be the same size. Preferably, the first distance 28 and / or the second distance 29 are each predefined with a positive value, wherein, in particular, at least 0.1 times the predefined distance 24 is predefined in each case. Furthermore, the first distance 28 and / or the second distance 29 are preferably each predefined with a value of at most 0.3 times the predefined distance 24.
[0040] Further parameters for the possible arrangement of the holding elements 5, 6 are obtained along the direction X3. Preferably, the holding elements 5, 6 or the axes 7, 8 are arranged on different sides of the longitudinal axis 4 with respect to the direction X3. Furthermore, the distances 35, 36 between the axis 7 and the longitudinal axis 4 or between the axis 8 and the longitudinal axis 4 are preferably minimized in terms of at least one required wall thickness, in particular the wall thickness of the tubular base body 2.
[0041] The axes 7, 8 of the holding elements 5, 6 are preferably positioned along the longitudinal axis 4 such that a deformation of the tubular base body 2 which occurs in operation causes a maximum displacement of the high-pressure outlets 9 to 11 along and against the direction X2 which is at most comparably large, in particular at least approximately the same in terms of magnitude. As a result, a comparable load occurs on the sealing points of the valves 101 to 103. Unlike a configuration in which no such comparability occurs, the at most comparably large load is lower than the maximum individual load.
[0042] However, the configuration chosen in the specific individual case can also be prescribed with reference to further boundary conditions. In particular, it is therefore also advantageous to predefine the distances 28, 29 to be positive in order to avoid mass accumulations along the longitudinal axis 4, which has a favorable effect on the material usage required for the forging. Furthermore, the configuration of the tubular base body 2 does not have to be symmetrical. For example, one of the distances 28, 29 can also be 0.3 times the predefined distance 24, while the other distance is 0.2 times the predefined distance 24. In this way, it is possible to compensate for an eccentric arrangement of the high-pressure outlets 9 to 11, i.e. an axial offset (radial cup seat offset) of the axes 12 to 14 with respect to the longitudinal axis 4 about the direction X3, as it is exemplarily shown in Figure 3 .
[0043] If such a positive, i.e. non-zero, axial offset 40 is predefined, as it is shown in Figure 3 , the axial offset can be oriented along or against the direction X3 from the longitudinal axis 4. From the arrangement of the holding elements 5, 6 as shown in Figure 1 and 2 , for the possible configurations of the shown modifications with a positive axial offset 40, the axial offset 40 is oriented against the direction X3 as viewed from the longitudinal axis 4. To illustrate, in Figure 3 , the axis 12 is designated with 12.0 in the case of an axial offset 40 of zero, and the axis 12 corresponding to a positive axial offset 40 is designated with 12.1.
[0044] The longitudinal axis 4 and / or the axes 7, 8 of the holding elements 5, 6 and / or the axes 12 to 14 of the high-pressure outlets 9 to 11 can in particular be determined as suitably drilled bore axes.
[0045] Due to the smaller number of holding elements 5, 6 compared to the conventional configuration, i.e. only two holding elements 5, 6 in the case of three cylinders, the fluid distributor 1 requires less structural space and can be implemented more lightweight. The smaller material usage can lead to a significant reduction in manufacturing costs. On the one hand, the amount of rod material required can be reduced. On the other hand, process energy for heating the rod to the forging temperature can be saved, in particular in the case of a forged implementation.
[0046] The application is not limited to the described embodiments.
Claims
1. Fluid dispenser (1) for a jetting device (100) having a tubular base body (2), wherein On the base body (2) a first high-voltage output (9), a second high-voltage output (10) and a third high-voltage output (11) are provided, wherein the second high-voltage output (10) is arranged offset with respect to the first high-voltage output (9) in a first direction (X1) along a longitudinal axis (4) of the tubular base body (2) by a predefined distance (24), wherein the third high-voltage output (11) is arranged offset with respect to the second high-voltage output (10) in the first direction (X1) along the longitudinal axis (4) by the predefined distance (24), wherein a first holding element (5) and a second holding element (6) for at least indirectly fastening the base body (2) are provided on the base body (2), and wherein the first holding element (5) and the second holding element (6) are arranged on the tubular base body (2) such that, viewed along the longitudinal axis (4), an axis (7) of the first holding element (5) is positioned at most 0.5 times the predefined distance (24) apart from an axis (12) of the first high-voltage output (9) in the first direction (X1), and such that, viewed along the longitudinal axis (4), an axis (8) of the second holding element (6) is positioned at most 0.5 times the predefined distance (24) apart from an axis (14) of the third high-voltage output (11) against the first direction (X1), wherein the axis (12) of the first high-voltage output (9), the axis (13) of the second high-voltage output (10), the axis (14) of the third high-voltage output (11), the axis (7) of the first holding element (5) and the axis (8) of the second holding element (6) are oriented in a second direction (X2), which is perpendicular to the first direction (X1), wherein a third direction (X3) is perpendicular both to the first direction (X1) and to the second direction (X2), and wherein, viewed along the third direction (X3), the axis (7) of the first holding element (5) and the axis (8) of the second holding element (6) are positioned with and against the third direction (X3) or against and with the third direction with respect to the longitudinal axis (4).
2. The fluid dispenser (1) according to claim 1, characterized in that A distance (35) between the axis (7) of the first holding element (5) and the longitudinal axis (4) is minimized in terms of at least one required wall thickness along the third direction (X3), and / or a distance (36) between the axis (8) of the second holding element (6) and the longitudinal axis (4) is minimized in terms of at least one required wall thickness along the third direction (X3).
3. The fluid dispenser (1) according to claim 1 or 2, characterized in that The axis (7) of the first holding element (5) and the axis (8) of the second holding element (6) are positioned along the longitudinal axis (4) such that a deformation of the tubular base body (2) occurring in operation causes a maximum displacement of the first high-pressure outlet (9), the second high-pressure outlet (10) and the third high-pressure outlet (11) in the same amount in the second direction (X2) and against the second direction (X2), respectively.
4. The fluid dispenser (1) according to claim 1 or 2, characterized in that The first holding element (5) and the second holding element (6) are arranged on the tubular base body (2) such that, viewed along the longitudinal axis (4), the axis (7) of the first holding element (5) is positioned at a distance of at most 0.3 times the predefined distance (24) along the first direction (X1) from the axis (12) of the first high-pressure outlet (9) and / or such that, viewed along the longitudinal axis (4), the axis (8) of the second holding element (6) is positioned at a distance of at most 0.3 times the predefined distance (24) against the first direction (X1) from the axis (14) of the third high-pressure outlet (11).
5. The fluid dispenser (1) according to claim 1 or 2, characterized in that The first holding element (5) and the second holding element (6) are arranged on the tubular base body (2) such that, viewed along the longitudinal axis (4), the axis (7) of the first holding element (5) is positioned at a distance of at least 0.1 times the predefined distance (24) along the first direction (X1) from the axis (12) of the first high-pressure outlet (9) and / or such that, viewed along the longitudinal axis (4), the axis (8) of the second holding element (6) is positioned at a distance of at least 0.1 times the predefined distance (24) against the first direction (X1) from the axis (14) of the third high-pressure outlet (11).
6. The fluid dispenser (1) according to claim 1 or 2, characterized in that The first holding element (5) and the second holding element (6) are machined with the tubular base body (2) by single-stage forging or multi-stage forging and / or the first high-pressure outlet (9), the second high-pressure outlet (10) and the third high-pressure outlet (11) are machined with the tubular base body (2) by single-stage forging or multi-stage forging.
7. The fluid dispenser (1) according to claim 1 or 2, characterized in that At least the tubular base body (2) is formed from corrosion-resistant high-quality steel and / or the tubular base body (2) together with at least the first high-pressure outlet (9), the second high-pressure outlet (10) and the third high-pressure outlet (11) and / or the first holding element (5) and the second holding element (6) is made of high-quality steel and / or exactly two holding elements (5, 6) are provided on the tubular base body (2) with the first holding element (5) and the second holding element (6) for at least indirect fastening and / or exactly three high-pressure outlets (9, 10, 11) are provided on the tubular base body (2) with the first high-pressure outlet (9), the second high-pressure outlet (10) and the third high-pressure outlet (11) for direct connection to a valve (101, 102, 103).
8. The fluid dispenser (1) according to claim 1 or 2, characterized in that The fluid distributor (1) is a fuel distributor bar of a fuel injection device for a mixed compression, externally ignited internal combustion engine.
9. The fluid dispenser (1) according to claim 1 or 2, characterized in that The tubular base body (2) is processed by single-stage forging or multi-stage forging.
10. The fluid dispenser (1) according to claim 7, characterized in that The high-quality steel is a high-quality steel of material number 1.4301, 1.4307, 1.4462 or 1.4362.
11. The fluid dispenser (1) according to claim 7, characterized in that The two holding elements (5, 6) are for fastening on a cylinder head (18).
12. An injection device (100) having at least one fluid distributor (1) according to any one of claims 1 to 11.
13. The injection device (100) according to claim 12, which is a fuel injection device for a mixed compression, externally ignited internal combustion engine.
Citation Information
Patent Citations
Method for manufacturing piping component, and apparatus for manufacturing piping component
JP2018158372A
Fuel distributor and manufacturing method thereof
CN106812646A
Cylinder wall fuel injection system for loop-scavenged, two-cycle internal combustion engine
US5762040A