EP2841757A1 - Anordnung mit einem brennstoffverteiler und einem halter - Google Patents
Anordnung mit einem brennstoffverteiler und einem halterInfo
- Publication number
- EP2841757A1 EP2841757A1 EP13716238.4A EP13716238A EP2841757A1 EP 2841757 A1 EP2841757 A1 EP 2841757A1 EP 13716238 A EP13716238 A EP 13716238A EP 2841757 A1 EP2841757 A1 EP 2841757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- holding body
- fuel distributor
- elastically deformable
- fuel
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 108
- 238000013016 damping Methods 0.000 claims abstract description 80
- 238000003466 welding Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 239000007769 metal material Substances 0.000 claims abstract description 12
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 description 139
- 239000000463 material Substances 0.000 description 14
- 239000002131 composite material Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/857—Mounting of fuel injection apparatus characterised by mounting fuel or common rail to engine
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
Definitions
- the invention relates to an arrangement with a fuel distributor and a holder, which serves for fastening the fuel distributor to a mounting structure, in particular an internal combustion engine. Specifically, the invention relates to the field of
- Fuel injection systems for high-pressure injection in internal combustion engines are provided.
- a fuel injection device is known.
- the known fuel injection device is characterized by a sound-decoupling design.
- a fuel distributor line is fastened by means of connecting means to a cylinder head of an internal combustion engine.
- at least one damping disc is provided in the region of the connecting means in this case.
- damping discs can be arranged in the region below a screw head of the connecting means with a support directly to the fuel rail or with a support directly to the cylinder head, so that the high pressure injection system consisting of the fuel rail and several fuel injection valves towards the cylinder head even more decoupled and better soundproof.
- the fuel injection device known from DE 10 2005 009 740 A1 has the disadvantage that considerable loading of the damping disks can occur in the region of attachment of the fuel distributor line to the cylinder head via a tightening torque of the connecting means, which leads to premature fatigue over the service life. On the other hand, if the tightening torque is too weak, inadequate damping and, due to the resulting play of movement, premature wear, in particular in the fastening area, can occur.
- the arrangement according to the invention with the features of claim 1 has the advantage that an improved vibration damping over the life is guaranteed. Specifically, there is the advantage that a sufficient noise attenuation is ensured even after a long period of operation.
- the arrangement allows the attachment of the fuel distributor to a mounting structure, in particular an internal combustion engine.
- a mounting structure in particular an internal combustion engine.
- Internal combustion engine is not necessarily part of the arrangement and the arrangement can be separated from such a mounting structure or
- the arrangement is suitable for air-compressing, self-igniting internal combustion engines in which a
- Fuel distributor is in this case connected in a suitable manner with the injection valves.
- the fuel distributor may advantageously also serve as a fuel storage, which stores a certain amount of high-pressure fuel.
- Fuel is first compressed by a high-pressure pump and
- Fuel distributor and holder spreads on the mounting structure from where disturbing noises are emitted, which may even penetrate into the interior of the vehicle under certain circumstances.
- the mounting structure is usually the cylinder head of an internal combustion engine. However, it can also be an application on spacers or more
- the holder may in this case advantageously be configured as a composite sheet of metallic layers and one or more elastically deformable damping layers or comprise such a composite sheet.
- the holder can be configured in an advantageous manner as a sheet-metal holder.
- the vibrational decoupling results from the composite of the first layer, the elastically deformable damping layer and the second layer.
- the first layer, the damping layer and the second layer can be connected to one another in an adhesive-bonded manner in an advantageous manner.
- the holding body can be suitably connected to the mounting structure, in particular a cylinder head.
- fastening means in particular
- Screws are used. On the holder are suitable for this
- screw-on which are realized for example by drilling in the holder.
- the holding body allows a decoupling and isolation of the noise sources and vibrations at the fuel distributor relative to the mounting structure. These two effects reduce the sound and sound transmission from the fuel rail to the engine.
- the damping layer can be laminated.
- the damping layer may in this case preferably be configured as a thin damping layer.
- the damping layer is formed of a viscoelastic material.
- the damping layer may be configured as an elastomer layer.
- the properties of the elastically deformable damping layer can be adjusted by the thickness and the material properties of the material for the damping layer. Possible parameters for this are the frequency contents to be damped and the ambient and operating temperature. It is also conceivable a multi-layered design with multiple layers, each at least substantially of a metallic material are formed and disposed therebetween elastically deformable damping layers. Here also different materials can be used. Specifically, the elastically deformable damping layer or the elastically deformable damping layers can be formed from a viscoelastic material.
- the decoupling can be realized essentially on the design of the holder, there is a high degree of freedom in the design of the fuel distributor or for the mounting structure. This results in a broad field of application.
- the holder consists of exactly two metallic layers and exactly one elastically deformable damping layer, which is arranged between the metallic layers.
- more than two metallic layers, in particular three metallic layers, are provided. Between these metallic layers is then in each case an elastically deformable
- the holder can be next to the metallic layers and the elastically deformable
- Damping layer or the elastically deformable damping layers also have further constituents. Specifically, it is possible that the holder is provided with a suitable coating for protection against the environment.
- the holding body is connected to the fuel distributor by welding.
- welding Several configurations are possible for this joining concept.
- one or more welded joints in contrast to a soldering, it can be ensured that the elastically deformable damping layer is not destroyed by the influence of temperature.
- laser welding the introduction of heat into the elastically deformable damping layer can be avoided or even completely prevented if necessary.
- Welds, in particular laser seams, can be applied directly in the region of the contact points. If necessary, a local
- Elastomer layers are preferably removed from one or more of the metallic layers in the bond area.
- the removal can be done for example by separation in conjunction with a bending and / or stamping step.
- the holder can also be aftertreated in the connection region, in particular cleaned, in order to prevent the remaining of the material of the elastically deformable damping layer in the connection region.
- an outer side of the holding body facing the fuel distributor is formed at least in a connecting region of the welded connection between the holding body and the fuel distributor on the first layer and that the first layer of the holding body is connected to the
- Fuel distributor by welding in particular laser welding, is connected.
- the elastically deformable damping layer and the second layer are recessed in the connection region.
- the first layer of the holding body is configured as an outer first layer.
- the second layer of the holding body is also designed as an external second layer. The first layer and the second layer thus form the mutually remote outer sides of the holding body.
- the holding body has at least one third layer, which is at least substantially formed of a metallic material, and at least one further elastically deformable damping layer, that the second layer of the holding body is designed as an inner second layer and the further elastically deformable damping layer is arranged between the inner second layer and the third layer.
- the metallic layers may be formed of the same metallic material. However, an embodiment of different metallic materials or only partially the same metallic materials is possible. Furthermore, the elastic deformable damping layers advantageously be made of the same material, in particular a viscoelastic material. However, the elastically deformable damping layers can also be formed from different materials.
- a viscoelastic material for the damping layer may advantageously serve a rubber.
- the term rubber is to be understood here in general and includes not only synthetic rubber materials but also the design of a
- Natural rubber can be used as the material for the damping layer.
- Particularly suitable polymers are thermoplastic elastomers.
- As a polymer can also serve a pure thermoplastic, but has a poorer damping behavior, but a better durability or resistance.
- a combination of these materials may be advantageous. This can be done, for example, by an embodiment with several
- the holding body is designed at least approximately strip-shaped.
- the holding body may be connected via a one-sided screw with the mounting structure.
- the arrangement preferably has a plurality of such holders in order to ensure a stable attachment of the fuel distributor to the mounting structure.
- Holding body possible, in which the holding body, for example, over the
- Fuel distributor extends, so that in the mounted state of the fuel distributor between two provided for the holding body fastening means, in particular screws, is located. Also in this embodiment, it is advantageous that the arrangement has a plurality of such holders. Also, a combination of one-sided screwed holders and both sides screwed holders is possible.
- the fuel distributor is designed as a fuel distributor rail, that the holding body along a longitudinal axis of the fuel distributor with the
- Fuel distributor is connected and that on the holding body fastening tabs are designed, on which the holding body can be fastened to the mounting structure.
- the holding body in particular designed as a bridge holder holding body can be realized.
- a screw-on point can be realized on each fastening tab.
- the number of fastening straps can also be greater than the number of fastening straps required for fastening. This is a
- the fuel distributor at least in a connection region of the welded joint between the holding body and the fuel distributor has an outer side, which is not configured, and that the holding body, at least in the connecting region on the non-planar outside of the
- Fuel distributor is formed.
- a configuration of the holder which is partially formed with respect to the outside of the fuel distributor can be achieved in order to enable a larger contact surface.
- the arrangement which may include one or more holders, in combination with the direct welding of the holder or the holder with the holding body depending on the configuration.
- the noise transmission from the fuel distributor in particular one
- Fuel rail, in the mounting structure, in particular the internal combustion engine is reduced.
- Vibrations of the fuel distributor can be attenuated more, whereby the sound radiation decreases from the outside of the fuel distributor.
- the vibration load of the fuel distributor and the high-pressure injection valves due to the vibration load of the internal combustion engine can be reduced, since the vibration transmission is attenuated in this direction. This also provides advantages in terms of design and reliability of these components.
- the configuration of the arrangement requires no additional items.
- the holder can above all be bolted directly to the cylinder head and, in contrast to the use of elastomeric isolators made of solid material, does not require any limitation of the prestress which limits the prestressing of the elastomeric insulator.
- the cushioning layer may be very resistant to abrasion due to possible vulcanization in the manufacture of the composite. Due to the planar design of the damping layer loads are distributed over a large area, while immediately a high damping effect is achieved.
- the holder can be shaped arbitrarily within certain limits. This allows adaptation to different geometric requirements.
- assembly and service concepts can be maintained during manufacture or in a workshop with little or no adjustment.
- Fig. 1 shows an arrangement with a fuel distributor and a holder, which serves for fastening the fuel distributor to a mounting structure, and one with the
- Fuel distributor connected injector in a partial, schematic sectional view according to a first embodiment of the invention
- FIG. 2 shows a holder of the arrangement shown in FIG. 1 in an excerptional, schematic sectional representation according to a second exemplary embodiment of the invention
- 3 shows a holder and a fuel distributor of the arrangement shown in FIG. 1 in an excerptional, schematic sectional representation according to a third exemplary embodiment of the invention
- FIG. 4 the arrangement shown in Fig. 1 in a schematic representation
- FIG. 6 the arrangement shown in Fig. 4 in a schematic representation
- FIG. 7 shows the arrangement shown in FIG. 3 in an excerptional, schematic sectional representation according to a seventh exemplary embodiment of the invention
- Fig. 8 shows the arrangement shown in Fig. 3 in an excerptive, schematic sectional view according to an eighth embodiment of the invention and Fig. 9, the arrangement shown in Fig. 3 in an excerpt, schematic
- FIG. 1 shows an arrangement 1 with a fuel distributor 2 and at least one holder 3, which serves for fastening the fuel distributor 2 to a mounting structure 4, in an excerptive, schematic sectional view corresponding to a first
- the arrangement 1 can in particular be configured as a fuel injection system 1 and serve for high-pressure injection in internal combustion engines.
- the mounting structure 4 may be an internal combustion engine 4, in particular a cylinder head 4 of an internal combustion engine 4.
- the holder 3 has in this embodiment, a holding body 5 and a
- the fastening means 6 can be configured in particular as a screw 6.
- Attachment structure 4 fixed in place.
- injection valves 7, in particular high-pressure injection valves 7, which are connected to the fuel distributor 2 can also be fixed.
- the holding body 5 has in this embodiment, a first layer 8, which is formed of a metallic material, a second layer 9, which is also formed of a metallic material, and an elastically deformable damping layer 10.
- the elastically deformable damping layer 10 is preferably made of a
- the damping layer 10 is arranged between the two layers 8, 9.
- the damping layer 10 is an inner damping layer 10.
- the damping layer 10 is preferably
- the holding body 5 is configured as a composite of the metallic layers 8, 9 and the damping layer 10.
- the holding body 5 of the holder 3 is connected to the fuel distributor 2 by welding.
- laser welding is used here.
- the holder 3 is connected to the fuel distributor 2 by means of two weld seams 13, 14 configured by laser welding.
- welding seams 15, 16 may also be provided in lateral contact areas, as illustrated with reference to FIG. 4.
- the holding body 5 is welded to the fuel distributor 2 so that the first layer 8 of the holding body 5 is connected to the fuel distributor 2 by welding, wherein the welds 13, 14 form only with respect to the first layer 8.
- the outside 1 1 of the holding body 5 facing the fuel distributor 2, in particular in the connection region 20 of the welded connection between the holding body 5 and the fuel distributor 2, is formed on the first layer 8. Outside the connection region 20, the outer side 1 1
- a protective layer or the like optionally also be formed on a protective layer or the like.
- Fig. 2 shows a holder 3 of the arrangement 1 shown in Fig. 1 in a partial, schematic sectional view according to a second embodiment.
- the holding body 5 a third layer 21 which is formed of a metallic material, and another elastically deformable
- the second layer 9 is configured as an inner second layer 9.
- Attenuation layer 22 is disposed between the inner second layer 9 and the third layer 21.
- the outer side 12 of the holding body 5 is formed on the third layer 21.
- the third layer 21 is configured as an external third layer 21.
- the further elastically deformable damping layer 22 is preferably bonded to the second layer 9 and the third layer 21.
- Fig. 3 shows the arrangement 1 shown in Fig. 1 with a holder 3 and a
- Fuel distributor 2 in a partial, schematic sectional view
- the elastically deformable cushioning layer 10 and the second layer 9 are in FIG.
- connection area 20 recessed.
- a recess 23 is formed in the holding body 5, which is illustrated by the broken line represented.
- the connection of the holder 3 to the fuel distributor 2 is effected by welding the first layer 8 of the holding body 5 to the fuel distributor 2 in the connection region 20. This causes a local heating of the first layer 8. Since the damping layer 10 is recessed in the connection region 20, a liquefaction of the damping layer 10 is prevented from the outset. The formation of splashes or vapors is also prevented. This improves the manufacturing process. In addition, the process reliability is improved.
- Fig. 4 shows the arrangement 1 shown in Fig. 1 from the direction of view designated IV in a schematic representation according to a fourth embodiment.
- the holding body 5 of the holder 3 is designed strip-shaped in this embodiment.
- the holding body 5 has a passage opening 24, through which the
- Fastening means 6, in particular the screw 6, for fastening to the mounting structure 4, is guided.
- This is a one-sided attachment, in particular a one-sided
- Holding bodies 5A, 5B of the holders 3A, 3B likewise have through openings 24A, 24B in order to enable attachment to the mounting structure 4 via suitable fastening means.
- the further holders 3A, 3B are also configured with strip-shaped holding bodies 5A, 5B.
- Fig. 5 shows the arrangement 1 shown in Fig. 4 in a schematic representation according to a fifth embodiment.
- the holding body 5 of the holder 3 on the one hand, the through hole 24 and on the other hand, a through hole 25.
- the connection of the holding body 5 with the fuel distributor 2 in this case takes place between the passage openings 24, 25.
- further holders 3A, 3B are preferably provided. These holders 3A, 3B may be configured in accordance with the holder 3 shown in FIG.
- the holding body 5B of the holder 3B has through holes 24B, 25B.
- the arrangement 1 may also have differently configured holder.
- a combination of unilaterally screwed or screwed holders and two-sided screwed or screwed holders is possible.
- the fuel distributor 2 can in particular be designed as a fuel distributor strip 2 with a longitudinal axis 30.
- the holding bodies 5, 5A, 5B are then oriented in the projection, preferably perpendicular to the longitudinal axis 30.
- Fig. 6 shows the arrangement 1 shown in Fig. 4 in a schematic representation according to a sixth embodiment.
- the fuel distributor 2 is configured as a fuel distributor strip 2 with a longitudinal axis 30.
- the holding body 5 of the holder 3 is connected to the fuel distributor 2 along the longitudinal axis 30 of the fuel distributor 2. Further, on the holding body. 5
- Attachment tabs 31, 32, 33 configured, where the holding body 5 at the
- Mounting structure 4 can be fastened.
- the fastening tabs 31 to 33 through openings 24, 25, 34.
- exactly one passage opening 24, 25, 34 is provided on each fastening lug 31 to 33 in this exemplary embodiment.
- the composite of the metallic layers 8, 9 and the damping layer 10 can thus be designed in a suitable manner. This can be done by a suitable blank in a simple way adapt to different Anschraub cultural.
- Fig. 7 shows the arrangement 1 shown in Fig. 3 with a holder 3 and a
- Fuel distributor 2 in a partial, schematic sectional view
- the fuel distributor 2 has an outer side 4 which, among other things, is not designed evenly in the connection region 20.
- the outer side 40 is formed in the connecting portion 20 in the form of a segment of a cylinder jacket.
- the holding body 5 is in
- the weld 16 can thereby be configured in a circular shape, wherein over the entire length of a connection between the holding body 5 and the
- FIG. 8 shows the arrangement 1 shown in FIG. 3 in an excerptional, schematic sectional view corresponding to an eighth exemplary embodiment. In this
- the second layer 9 of the mounting structure 4 faces. Furthermore, the second layer 9 is recessed in the region of the fuel distributor 2. Likewise, the damping layer 9 is recessed in the region of the fuel distributor 2.
- the first layer 8 is connected by welds 13, 14 with the fuel distributor 2.
- the attachment has the advantage that the fuel distributor 2 is connected to the layer 8, which does not bear directly against the mounting structure 4. Because the layer 8 is separated from the voltage applied to the mounting structure 4 layer 9 by the damping layer 10. Thus, the vibration damping can be further improved.
- the fastening means 6 is designed as a collar screw 6.
- the collar screw comprises a head 45, a collar 46 and a threaded bolt 47.
- the threaded bolt is screwed into the mounting structure 4.
- a height of the federal 46 is the
- Bias which acts on the damping layer 10, limited and defined predetermined.
- the collar 46 abuts the layer 9, which is supported on the mounting structure 4.
- a high fastening force with respect to the layer 9 can be achieved, which can be significantly greater than the biasing force acting on the damping layer 10.
- FIG. 9 shows the arrangement 1 shown in FIG. 3 in an excerptional, schematic sectional representation according to a ninth exemplary embodiment. In this
- Attachment 6 screwed to the mounting structure 4.
- a support sleeve 48 is provided which defines a defined distance of the head 45 of the mounting structure 4 when screwing.
- the layer 9 is applied to the mounting structure 4, while the layer 10, to which the fuel distributor 2 is connected by a weld 15, not directly on the
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL13716238T PL2841757T3 (pl) | 2012-04-26 | 2013-04-02 | Układ z rozdzielaczem paliwa i uchwytem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012206937A DE102012206937A1 (de) | 2012-04-26 | 2012-04-26 | Anordnung mit einem Brennstoffverteiler und einem Halter |
| PCT/EP2013/056858 WO2013160069A1 (de) | 2012-04-26 | 2013-04-02 | Anordnung mit einem brennstoffverteiler und einem halter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2841757A1 true EP2841757A1 (de) | 2015-03-04 |
| EP2841757B1 EP2841757B1 (de) | 2018-08-15 |
Family
ID=48095812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13716238.4A Not-in-force EP2841757B1 (de) | 2012-04-26 | 2013-04-02 | Anordnung mit einem brennstoffverteiler und einem halter |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9429121B2 (de) |
| EP (1) | EP2841757B1 (de) |
| KR (1) | KR20150003751A (de) |
| DE (1) | DE102012206937A1 (de) |
| ES (1) | ES2697274T3 (de) |
| PL (1) | PL2841757T3 (de) |
| WO (1) | WO2013160069A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013217810A1 (de) * | 2013-09-06 | 2015-03-12 | Robert Bosch Gmbh | Halter zur Befestigung eines Brennstoffverteilers an einer Brennkraftmaschine und Verbindungsverfahren |
| DE102014108163A1 (de) * | 2014-06-11 | 2015-12-17 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
| DE102016204025B4 (de) * | 2016-03-11 | 2021-05-27 | Hirschvogel Umformtechnik Gmbh | Innendruckbelastetes Bauteil (Rail) sowie Verfahren zu dessen Herstellung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038941A (ja) * | 1998-07-23 | 2000-02-08 | Sanshin Ind Co Ltd | 筒内燃料噴射式エンジン |
| US7263975B2 (en) * | 2005-01-25 | 2007-09-04 | Dana Corporation | Plastic coated metal fuel rail |
| DE102005009740A1 (de) | 2005-03-03 | 2006-09-07 | Robert Bosch Gmbh | Brennstoffeinspritzvorrichtung |
| FR2909420B1 (fr) * | 2006-11-30 | 2012-01-27 | Renault Sas | Barrette amortissant les vibrations de tuyaux d'injection sur un moteur a combustion interne |
| FR2920488A1 (fr) * | 2007-09-04 | 2009-03-06 | Peugeot Citroen Automobiles Sa | Dispositif d'injection pour un moteur a combustion interne comportant un tel dispositif d'injection. |
| DE102008044165A1 (de) * | 2008-11-28 | 2010-06-02 | Robert Bosch Gmbh | Kraftstoffzuteiler |
| DE102009014399B3 (de) * | 2009-03-26 | 2010-08-12 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler mit Halterung |
| US7980226B2 (en) * | 2009-03-30 | 2011-07-19 | Hitachi, Ltd | Fuel system for a direct injection engine |
| US8875681B2 (en) * | 2011-10-28 | 2014-11-04 | Robert Bosch Gmbh | Fuel rail mounting arrangement |
| US8800534B2 (en) * | 2011-11-18 | 2014-08-12 | Robert Bosch Gmbh | Fuel rail mounting arrangement |
| DE102012206931A1 (de) * | 2012-04-26 | 2013-10-31 | Robert Bosch Gmbh | Anordnung mit einem Brennstoffverteiler und einem Halter |
| DE102012206904A1 (de) * | 2012-04-26 | 2013-10-31 | Robert Bosch Gmbh | Halter zur Befestigung einer Komponente an einer Brennkraftmaschine |
| DE102012210369A1 (de) * | 2012-06-20 | 2013-12-24 | Robert Bosch Gmbh | Halter zur Befestigung eines Brennstoffverteilers an einer Brennkraftmaschine und Brennstoffeinspritzanlage mit solch einem Halter. |
-
2012
- 2012-04-26 DE DE102012206937A patent/DE102012206937A1/de not_active Withdrawn
-
2013
- 2013-04-02 WO PCT/EP2013/056858 patent/WO2013160069A1/de not_active Ceased
- 2013-04-02 ES ES13716238T patent/ES2697274T3/es active Active
- 2013-04-02 EP EP13716238.4A patent/EP2841757B1/de not_active Not-in-force
- 2013-04-02 KR KR20147029594A patent/KR20150003751A/ko not_active Ceased
- 2013-04-02 PL PL13716238T patent/PL2841757T3/pl unknown
- 2013-04-02 US US14/396,575 patent/US9429121B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013160069A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150003751A (ko) | 2015-01-09 |
| US20150075495A1 (en) | 2015-03-19 |
| ES2697274T3 (es) | 2019-01-22 |
| WO2013160069A1 (de) | 2013-10-31 |
| DE102012206937A1 (de) | 2013-10-31 |
| US9429121B2 (en) | 2016-08-30 |
| EP2841757B1 (de) | 2018-08-15 |
| PL2841757T3 (pl) | 2019-01-31 |
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