EP2834512B1 - Support pour la fixation d'un composant sur un moteur à combustion interne, coussinet pour un tel support et système d'injection de carburant - Google Patents

Support pour la fixation d'un composant sur un moteur à combustion interne, coussinet pour un tel support et système d'injection de carburant Download PDF

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Publication number
EP2834512B1
EP2834512B1 EP13713419.3A EP13713419A EP2834512B1 EP 2834512 B1 EP2834512 B1 EP 2834512B1 EP 13713419 A EP13713419 A EP 13713419A EP 2834512 B1 EP2834512 B1 EP 2834512B1
Authority
EP
European Patent Office
Prior art keywords
bushing
rigid
damping element
bushing part
holder
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.)
Active
Application number
EP13713419.3A
Other languages
German (de)
English (en)
Other versions
EP2834512A1 (fr
Inventor
Andreas Rehwald
Matthias Maess
Goekhan Guengoer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PL13713419T priority Critical patent/PL2834512T3/pl
Publication of EP2834512A1 publication Critical patent/EP2834512A1/fr
Application granted granted Critical
Publication of EP2834512B1 publication Critical patent/EP2834512B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • 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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • 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 a holder for fastening at least one component, in particular a fuel distributor, to an internal combustion engine. Specifically, the invention relates to the field of fuel injection systems of internal combustion engines.
  • any compliant elastomer components is also disadvantageous, as this has higher quasi-static displacements of the fuel distributor and the injectors with respect to the initiation of operating forces result, which in turn leads to increased wear on the seals, in particular on the seals to an injection valve.
  • a tangential movement of the elastomeric material to the rigid metal surface occurs at the boundary layers between the elastomer components and the metal sleeves. This leads to a strong abrasion of the elastomer at the contact surfaces and thus to a high risk of failure.
  • a bearing bush for a holder which serves to fix a component such as a frame member to a mounting structure such as a vehicle body.
  • the bearing bush comprises a first socket part and a second socket part.
  • the first socket part has a rigid socket body and at least one damping element, which is materially connected to the socket body of the first socket part
  • the second socket part has a rigid socket body and at least one damping element, which is materially connected to the socket body of the second socket part.
  • Both the two parts of the socket and the at least two damping elements are very complex in their contouring and designed significantly different from each other in design and require a very high installation costs for an optimally designed mounting bushing.
  • the bushing according to the invention with the features of claim 1 the holder according to the invention with the features of claim 12 and the fuel injection system according to the invention with the features of claim 13 have the advantage that an improved vibration damping is ensured over the life and thus a robust noise reduction is ensured.
  • the disadvantages of the prior art can be avoided.
  • a tolerance-related scattering of the pre-stretching of the damping elements can be reduced in an advantageous manner.
  • the fuel distributor can be configured as a fuel rail.
  • the fuel distributor serves as a common fuel storage for several high-pressure injectors.
  • the injection valves connected to the fuel distributor in a suitable manner inject the fuel into the combustion process during operation required fuel under high pressure in combustion chambers of the internal combustion engine.
  • the fuel is previously compressed via a high pressure pump and flow controlled quantity controlled via a high pressure line in the fuel distributor. This results in principle in the problem that the fuel distributor can be excited to oscillations in the audible frequency range. This is mainly due to noise sources in the injectors, which are part of a fuel injection system.
  • the structure-borne sound propagates here, for example, from the injection valves via rail cups, the fuel distributor and holder to the mounting structure, from where disturbing noises are radiated. Under certain circumstances, such disturbing noises can even reach the interior of the vehicle.
  • the mounting structure is usually the cylinder head of the internal combustion engine. In this case, however, a connection of the fuel distributor via spacers or other connecting elements is possible.
  • the generation of vibrations in the audible frequency range can be avoided or at least reduced in an advantageous manner by the bearing bush according to the invention. This can be ensured over the life of a reliable reduction of the structure-borne sound transmission. Especially in the interior of the vehicle urgent noise can be avoided.
  • the bushing of exactly two parts of the book namely the first female part and the second female part
  • the rigid socket body and the damping element of the respective female part therefore represent an integral female part for the assembly.
  • a defined position of the damping element with respect to the rigid bush body is predetermined by design. Assembly errors are prevented from the outset.
  • even during operation by the cohesive connection slipping or pressing out of the damping element is prevented relative to the rigid sleeve body. As a result, abrasions of the material of the damping element can be prevented. This reduces the risk of failure of the bearing bush.
  • the damping element of the first female part is connected by vulcanization with the rigid female body of the first female part. It is advantageous in a corresponding manner that the damping element of the second socket part is connected by vulcanization with the rigid socket body of the second socket part. In this way, a reliable cohesive connection between the damping element and the rigid bushing body of the respective female part can be configured.
  • the respective damping element can be formed by a vulcanized elastomer layer. This can also be more complex Contours of the damping element can be realized by the elastomer partition, which is not possible with a separate damping component.
  • the rigid socket body of the first socket part is at least substantially formed of a metallic material.
  • the rigid bushing body of the second bushing part is formed at least substantially of a metallic material.
  • metallic bushing body can serve to accommodate possibly high mechanical fastening forces. The rigid bushings limit this at the same time the bias of the damping elements in the attachment.
  • the damping element of the first socket part is formed from a rubber and / or that the damping element of the second socket part is formed from a rubber.
  • the term rubber is to be understood generally. In particular, the rubber may be a natural rubber or a synthetic rubber material.
  • the socket parts can be designed in this way as rubber-metal socket parts.
  • the metallic socket body serve to limit the bias path or to the bias limit.
  • the bushing parts combine the functions of the bolt force absorption, the positive-locking mounting of a holding body, which serves to fasten the fuel distributor, between the two damping elements of the bushing parts and the vibration isolation.
  • the bushing parts can be made by vulcanizing elastomeric layers onto the metallic bushings. This can be done in a suitable form for the curing process of the elastomer. As a result, the elastomeric partition adheres firmly to the metallic bushing bodies, whereby the contact surfaces have a particularly high wear resistance. As a result, a shearing of the elastically deformable damping element, as may occur in a separate damping component due to tangential relative movement, can be avoided. This reduces the risk of failure.
  • a vibrationally insulating effect is preferably ensured in all spatial directions. This particularly relates to a radial direction with respect to a longitudinal axis of the bearing bush, in which the holding body is loaded.
  • the socket body are preferably carried out so that between the holding body and the two rigid bushing body of the bushing parts in each case at least a portion of the respective damping element is effective.
  • a direct contact in particular a metallic contact, between the holding body and the rigid bushing body of the bushing parts is avoided. Due to the adhesion of the damping elements to the rigid Bushings, the surface of the damping elements, which is in the assembled state in connection with the holding body, are profiled suitable.
  • the rigid bushing body of the first bushing part has a disk-shaped portion, which is oriented perpendicular to the longitudinal axis, and a sleeve-shaped portion which extends along the longitudinal axis.
  • the rigid bushing body of the second bushing part has a disc-shaped portion, which is oriented perpendicular to the longitudinal axis, and a sleeve-shaped portion which extends along the longitudinal axis.
  • the damping element of the first female part is partially connected to the disk-shaped portion of the rigid female body of the first female part and partially connected to the sleeve-shaped portion of the rigid female body of the first female part.
  • the damping element of the second socket part is connected in sections with the disk-shaped portion of the rigid socket body of the second socket part and in sections with the sleeve-shaped portion of the rigid socket body of the second socket part.
  • exactly one damping element can extend both over the disk-shaped section and over the sleeve-shaped section of the rigid bushing body of the first bushing part or of the second bushing part.
  • the damping element can also be produced particularly easily.
  • the rigid bushing body can be inserted into a suitable shape, wherein there is a gap in the region of the damping element to be produced. This gap can then be filled with the material for the damping element. This results in a relatively low total tolerance with low production costs.
  • the damping element of the first female part is connected to the disc-shaped portion of the rigid female body of the first female part and that the first female part has at least a second damping element which is connected to the sleeve-shaped portion of the rigid female body of the first female part.
  • the damping element of the second socket part is connected to the disc-shaped portion of the rigid socket body of the second socket part and that the second Socket part has at least a second damping element which is connected to the sleeve-shaped portion of the rigid socket body of the second socket part.
  • At least one further damping element of the first socket part can be advantageously connected to the disk-shaped section of the rigid socket body of the first socket part. Additionally or alternatively, at least one further damping element of the first socket part can be advantageously connected to the sleeve-shaped section of the rigid socket body of the first socket part.
  • a subdivision into a plurality of damping elements may be provided on the disk-shaped section or on the sleeve-shaped section.
  • an elastic deformability of the damping elements can be improved due to the available free space. Specifically, this can be increased by a spring travel.
  • recesses are configured on at least one damping element.
  • Such recesses can on the one hand support an elastic deformability of the damping element.
  • a certain profiling can also be achieved by such depressions, in order to improve the load capacity of the connection with respect to the holding body, which is clamped between the damping elements.
  • the rigid bushing body of the first bushing part and the rigid bushing body of the second bushing part are designed as identical parts.
  • the first socket part and the second socket part are designed as identical parts. This simplifies the manufacture and assembly of the bearing bush.
  • the rigid bushing body of the second socket part is designed as a disk-shaped rigid bushing body with a central passage opening.
  • the limitation of the bias voltage can be predetermined by a predetermined gap between the sleeve-shaped portion of the rigid socket body of the first female part and the disk-shaped rigid female body of the second female part.
  • the structure-borne sound transmission from the component, in particular the fuel distributor, into the mounting structure, in particular a cylinder head of the internal combustion engine, is reduced in comparison to a rigid screw connection.
  • vibrations of the fuel distributor are more damped, whereby the sound radiation decreases from the surface of the fuel distributor.
  • the damping elements which can be designed in particular as damping layers, adhere particularly well to the preferably metallic parts of the socket. As a result, tangential relative movements are avoided at the contact surface between the damping elements and the preferably metallic holding body. Thus, the risk of crack formation at this contact surface and the risk of abrasion also decreases, so that component failure is avoided.
  • the number of components of the bearing bush can be significantly reduced.
  • the relevant in the axial direction component tolerance which is essential for the clamping force can be improved, since only two bushing parts for the basic function are required, which are connected via a suitable fastening means with the mounting structure.
  • results in separate damping components results in separate damping components, the total tolerance for the Vorspannweg from the two tolerances for the metal sleeves and the two tolerance ranges for the damping components.
  • the total tolerance can be reduced in an advantageous manner to the two tolerance ranges of the damping elements, since the material for the damping elements can be introduced into a mold in which the rigid bush body are inserted for the preparation of the bushing parts. This eliminates the component tolerance of the rigid socket body. Overall, this improves the worst possible load on the damping element in the unfavorable case, which can occur with regard to component tolerances caused by movement.
  • the shape of the insulating, designed as a damping layer damping elements within manufacturing limits can be performed arbitrarily.
  • Surface contours, such as grooves or grooves, can be configured in a simple manner in order to increase the compliance, in particular in the radial direction, and thus to achieve an optimized isolation effect for noise reduction.
  • Fig. 1 shows a fuel injection system 1 with a fuel distributor 2 and a holder 3, which serves for fastening the fuel distributor 2 to an internal combustion engine 4, in an excerpt, schematic sectional view according to a first embodiment.
  • the holder 3 has a bearing bush 5.
  • the fuel injection system 1 is particularly suitable for mixture-compression, spark-ignited internal combustion engines 4.
  • the holder 3 is in this embodiment attached via its bearing bush 5 to a mounting structure 6.
  • the attachment via a suitable fastening means 7, in particular a screw 7.
  • a series of injection valves 8 is also fixed to the internal combustion engine 4 together with the fuel distributor 2.
  • the holder 3 has a holder body 9.
  • the bearing bush 5 has a first socket part 11 and a second socket part 12.
  • the first socket part 11 forms an upper bushing part 11 of the bearing bush 5, while the second bushing part 12 forms a lower bushing part 12 of the bearing bush 5.
  • the upper bushing part 11 is disposed away from the mounting structure 6, while the lower bushing part 12 is located on the mounting structure 6.
  • the holding body 9 is fixed during assembly between the socket parts 11, 12.
  • the lower bushing part can also be formed by the first bushing part 11, while the upper bushing part is formed by the second bushing part 12.
  • the first socket part 11 has a rigid socket body 13 and a damping element 14 which is connected in a materially connected manner to the socket body 13.
  • the rigid bushing body 13 of the first bushing part 11 is formed of a metallic material.
  • the damping element 14 of the first female part 11 is formed of a rubber, in particular a natural rubber or a synthetic rubber material.
  • the damping element 14 is preferably connected by vulcanization with the rigid bushing body 13.
  • the damping element 14 is configured as an elastically deformable damping element 14.
  • the second bushing part 12 has a rigid bushing body 15 and a damping element 16 connected in a materially connected manner to the bushing body 15.
  • the damping element 16 of the second socket part 12 is in this case connected by vulcanization with the rigid socket body 15 of the second socket part 12.
  • the rigid bushing body 15 of the second bushing part 12 is formed of a metallic material.
  • the metallic material of the socket body 15 of the second socket part 22 may be the same metallic material used for the rigid socket body 13 of the first socket part 11. However, different metallic materials can also be used.
  • the damping element 16 is preferably made of a rubber, in particular a natural rubber or a synthetic Rubber material, formed.
  • the damping elements 14, 16 may be formed from the same or from different materials.
  • the holding body 9 has a passage opening 17, which is designed as a through hole 17.
  • the bushing parts 11, 12 are inserted from different sides along a longitudinal axis 18 in the through hole 17.
  • the fastening screw 7 is screwed into the mounting structure 6. If, during assembly, the damping elements 14, 16 of the bushing parts 11, 12 still come into abutment with the holding body 9 without prestressing, then a gap 19 remains along the longitudinal axis 18 between the bushing parts 11, 12. This gap 19 serves for biasing the damping elements 14 , 16.
  • For the fastening screw 7 is screwed so far into the mounting structure 6 until the rigid bushing body 13, 15 of the bushing parts 11, 12 get to block.
  • the damping elements 14, 16 of the bushing parts 11, 12 of the bearing bushing 5 ensure both a radial and an axial isolation of the vibrations in order to spatially optimize the insulation effect.
  • Direct contacts between the holding body 9 and the rigid bushing bodies 13, 15 of the bushing parts 11, 12 are prevented in this case.
  • contacts of metal on metal are prevented.
  • the second socket part 12 may be configured in accordance with the first socket part 11.
  • the second socket part 12 may also be configured differently from the first socket part 11.
  • the rigid bushing body 15 of the second bushing part 12 as a disk-shaped rigid bushing body 15 with an at least be approximately centrally through hole 21 configured.
  • the passage opening 21 serves for passing the fastening means 7.
  • Fig. 2 shows the in Fig. 1 labeled II section of the first female part 11 of the bearing bush 5 of the holder 3 in a schematic sectional view corresponding to the first embodiment.
  • the rigid bushing body 13 has an axial extension 22.
  • the axial extent 22 of the rigid bushing body 13 is in this case at the same time the axial extent 22 of the first bushing part 11. Over the length of the axial extent 22, the gap 19 is adjusted.
  • the axial extent 22 of the first bushing part 11 and an axial extent 24 of the second bushing part 12 serve to bridge a thickness 23 of the holding body 9 and to specify the axial gap 19.
  • the axial extent 22 of first socket part 11 are also chosen to be larger if the axial extent 24 of the second socket part 12 is selected to be correspondingly shorter, and vice versa.
  • the thickness 23 of the holding body 9 and the gap 19 can be effectively divided between the first female part 11 and the second female part 12.
  • the second bushing part 12 becomes a disk-shaped bushing part 12.
  • the damping element 16 is then designed as a disk-shaped damping element 16 and arranged on the disk-shaped bushing body 15. The damping element 16 acts in this case only in the axial direction.
  • the rigid bushing body 13 of the first bushing part 11 has a disk-shaped portion 30 and a sleeve-shaped portion 31.
  • the disk-shaped portion 30 is oriented perpendicular to the longitudinal axis 18.
  • the sleeve-shaped section 31 extends along the longitudinal axis 18.
  • the damping element 14 has a disk-shaped section 32 and a sleeve-shaped section 33.
  • the disk-shaped portion 32 is oriented perpendicular to the longitudinal axis 18.
  • the sleeve-shaped portion 33 of the damping element 14 extends along the longitudinal axis 18.
  • the damping element 14 in this embodiment is partially connected to the disk-shaped portion 30 of the rigid bushing body 13 and partially connected to the sleeve-shaped portion 31 of the rigid bushing body 13. Between the disk-shaped portion 30 and the sleeve-shaped portion 31, the rigid bushing body 13 has an edge 34.
  • the damping element 14 is also provided in the region of the edge 34 in this embodiment.
  • the damping element 14 has an edge portion 35 at the edge 34.
  • the material for the design of the damping element 14 may during manufacture For example, be molded onto the rigid bushing body 13. As a result, the edge portion 35 of the damping element 14 fits seamlessly against the edge 34.
  • the disk-shaped portion 32 of the damping element 14 receives axial movements of the holding body 9, as illustrated by the double arrow 36.
  • the sleeve-shaped portion 33 of the damping element 14 receives radial movements of the holding body 9, as illustrated by the double arrow 37.
  • Fig. 3 shows that in Fig. 2 Partly illustrated socket part 11 of the bearing bush 5 according to a second embodiment.
  • the damping element 14 is connected to the disk-shaped portion 30 of the rigid bushing body 13.
  • a second damping element 40 is provided, which is connected to the sleeve-shaped portion 31 of the rigid bushing body 13.
  • the damping element 14 is designed as a disk-shaped damping element 14.
  • the second damping element 40 is designed as a sleeve-shaped damping element 40.
  • a free space 41 with respect to the adjacent damping elements 14, 40 is provided in this embodiment.
  • Fig. 4 shows that in Fig. 2 Partly illustrated socket part 11 of the bearing bush 5 according to a third embodiment.
  • the damping element 14 is connected to the disk-shaped portion 30 of the rigid bushing body 13.
  • the second damping element 40 is connected to the sleeve-shaped portion 31 of the rigid bushing body 13.
  • a free space 41 is provided at the edge 34 between the damping elements 14, 40.
  • the damping element 14 recesses 44, 45 on. By the recesses 44, 45 a profiling of the damping element 14 is achieved. Accordingly, the second also indicates Damping element 40 recesses 46, 47 on.
  • the elastically deformable material of the second damping element 40 can breathe, inter alia, in the direction of the arrows 48, 49 or dodge into the depression 46.
  • the recess 47 the elastic deformability of the second damping element 40 is improved. Accordingly, the behavior of the damping element 14 is optimized.
  • Fig. 5 shows that in Fig. 2 Partly illustrated socket part 11 of the bearing bush 5 according to a fourth embodiment.
  • the damping element 14 is connected to the disk-shaped portion 30 of the rigid bushing body 13.
  • a further damping element 50 is provided, which is connected to the disk-shaped portion 30 of the rigid bushing body 13.
  • the damping element 40 is connected to the sleeve-shaped portion 31 of the rigid bushing body 13.
  • a further damping element 51 is arranged on the sleeve-shaped portion 31 of the rigid bushing body 13, which is preferably connected by vulcanization with the rigid bushing body 13.
  • the damping elements 14, 50 are integrally connected to the disk-shaped portion 30 of the rigid bushing body 13 and the sleeve-shaped portion 31 of the rigid bushing body 13, the damping elements 40, 51 are materially connected. Between the damping elements 14, 50 an annular space 52 is provided. Furthermore, the free space 41 is provided between the damping elements 50, 51 in the region of the edge 34 of the rigid bushing body 13. In addition, a clearance 53 is provided between the damping elements 40, 51.
  • the damping elements 14, 40, 50, 51 are preferably designed annular. Due to the free spaces 41, 52, 53, the damping elements 14, 40, 50, 51 can deform better by the additional degrees of freedom. For example, the further damping element 50 can breathe in the direction of the arrows 54, 55.
  • the profiling and division can also be done in the axial direction and is not necessarily circular. It is also possible the expression of a knob-like profiling.

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

Claims (12)

  1. Coussinet (5) pour un support (3), qui est destiné à la fixation d'un composant (2), en particulier d'un répartiteur de carburant, sur une structure de montage (6), avec une première partie de coussinet (11) et une deuxième partie de coussinet (12), dans lequel la première partie de coussinet (11) présente un corps de coussinet rigide (13) et au moins un élément d'amortissement (14), qui est assemblé par une liaison matérielle au corps de coussinet (13) de la première partie de coussinet (11), et en ce que la deuxième partie de coussinet (12) présente un corps de coussinet rigide (15) et au moins un élément d'amortissement (16), qui est assemblé par une liaison matérielle au corps de coussinet (15) de la deuxième partie de coussinet (12), caractérisé en ce que la première partie de coussinet (11) et la deuxième partie de coussinet (12) sont des pièces identiques et/ou en ce que le corps de coussinet rigide (13) de la première partie de coussinet (11) et le corps de coussinet rigide (15) de la deuxième partie de coussinet (12) sont des pièces identiques.
  2. Coussinet selon la revendication 1, caractérisé en ce que l'élément d'amortissement (14) de la première partie de coussinet (11) est assemblé par vulcanisation au corps de coussinet rigide (13) de la première partie de coussinet (11) et/ou en ce que l'élément d'amortissement (16) de la deuxième partie de coussinet (12) est assemblé par vulcanisation au corps de coussinet rigide (15) de la deuxième partie de coussinet (12).
  3. Coussinet selon la revendication 1 ou 2, caractérisé en ce que le corps de coussinet rigide (13) de la première partie de coussinet (11) est formée au moins pour l'essentiel en un matériau métallique et/ou en ce que le corps de coussinet rigide (15) de la deuxième partie de coussinet (12) est formé au moins pour l'essentiel en un matériau métallique.
  4. Coussinet selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément d'amortissement (14) de la première partie de coussinet (11) est formé en un caoutchouc, en particulier un caoutchouc naturel ou un matériau de caoutchouc synthétique et/ou en ce que l'élément d'amortissement (16) de la deuxième partie de coussinet (12) est formé en un caoutchouc, en particulier un caoutchouc naturel ou un matériau de caoutchouc synthétique.
  5. Coussinet selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le corps de coussinet rigide (13) de la première partie de coussinet (11) présente une partie en forme de disque (30), qui est orientée au moins approximativement perpendiculairement à un axe longitudinal (18), et une partie en forme de douille (31), qui s'étend au moins approximativement le long de l'axe longitudinal (18).
  6. Coussinet selon la revendication 5, caractérisé en ce que l'élément d'amortissement (14) de la première partie de coussinet (11) est assemblé en partie à la partie en forme de disque (30) du corps de coussinet rigide (13) de la première partie de coussinet (11) et en partie à la partie en forme de douille (31) du corps de coussinet rigide (13) de la première partie de coussinet (11).
  7. Coussinet selon la revendication 5, caractérisé en ce que l'élément d'amortissement (14) de la première partie de coussinet (11) est assemblé à la partie en forme de disque (30) du corps de coussinet rigide (13) de la première partie de coussinet (11) et en ce que la première partie de coussinet (11) présente au moins un deuxième élément d'amortissement (40), qui est assemblé à la partie en forme de douille (31) du corps de coussinet rigide (13) de la première partie de coussinet (11).
  8. Coussinet selon la revendication 5 ou 7, caractérisé en ce qu'au moins un autre élément d'amortissement (50) de la première partie de coussinet (11) est assemblé à la partie en forme de disque (30) du corps de coussinet rigide (13) de la première partie de coussinet (11) et/ou en ce qu'au moins un autre élément d'amortissement (51) de la première partie de coussinet (11) est assemblé à la partie en forme de douille (31) du corps de coussinet rigide (13) de la première partie de coussinet (11).
  9. Coussinet selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des creux sont formés sur au moins un élément d'amortissement (14, 16, 40, 50, 51).
  10. Coussinet selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le corps de coussinet rigide (15) de la deuxième partie de coussinet (12) est réalisé en forme de corps de coussinet rigide en forme de disque (15) avec une ouverture de passage centrale (21).
  11. Support (3) destiné à la fixation d'un composant (2), en particulier d'un répartiteur de carburant, sur une structure de montage (6), en particulier un moteur à combustion interne (4), avec un corps de maintien (9) et au moins un coussinet (5) selon l'une quelconque des revendications 1 à 10, dans lequel le corps de maintien (9) est encastré, pour l'assemblage du corps de maintien (9) avec le coussinet (5), au moins en partie entre au moins un élément d'amortissement (14) de la première partie de coussinet (11) et au moins un élément d'amortissement (16) de la deuxième partie de coussinet (12).
  12. Système d'injection de carburant (1) avec un répartiteur de carburant (2) et au moins un support (3) selon la revendication 11, qui est destiné à la fixation du répartiteur de carburant (2) sur un moteur à combustion interne (4).
EP13713419.3A 2012-04-04 2013-03-27 Support pour la fixation d'un composant sur un moteur à combustion interne, coussinet pour un tel support et système d'injection de carburant Active EP2834512B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13713419T PL2834512T3 (pl) 2012-04-04 2013-03-27 Uchwyt do zamocowania komponentu do silnika spalinowego, panewka łożyskowa do takiego uchwytu i instalacja wtrysku paliwa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012205580A DE102012205580A1 (de) 2012-04-04 2012-04-04 Halter zur Befestigung einer Komponente an einer Brennkraftmaschine, Lagerbuchse für solch einen Halter und Brennstoffeinspritzanlage
PCT/EP2013/056561 WO2013149914A1 (fr) 2012-04-04 2013-03-27 Support pour la fixation d'un composant sur un moteur à combustion interne, coussinet pour un tel support et système d'injection de carburant

Publications (2)

Publication Number Publication Date
EP2834512A1 EP2834512A1 (fr) 2015-02-11
EP2834512B1 true EP2834512B1 (fr) 2016-08-31

Family

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EP13713419.3A Active EP2834512B1 (fr) 2012-04-04 2013-03-27 Support pour la fixation d'un composant sur un moteur à combustion interne, coussinet pour un tel support et système d'injection de carburant

Country Status (8)

Country Link
US (1) US9777688B2 (fr)
EP (1) EP2834512B1 (fr)
KR (1) KR102071854B1 (fr)
CN (1) CN104204503B (fr)
DE (1) DE102012205580A1 (fr)
ES (1) ES2606338T3 (fr)
PL (1) PL2834512T3 (fr)
WO (1) WO2013149914A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206911A1 (de) * 2012-04-26 2013-10-31 Robert Bosch Gmbh Halter zur Befestigung einer Komponente an einer Brennkraftmaschine
US9915236B1 (en) * 2017-02-22 2018-03-13 Delphi Technologies Ip Limited Fuel system component mounting assembly with retention member
DE102019002961A1 (de) 2018-05-14 2019-11-14 Sew-Eurodrive Gmbh & Co Kg Bremsanordnung für einen Elektromotor
US11674557B2 (en) 2018-05-14 2023-06-13 Sew-Eurodrive Gmbh & Co. Kg Brake assembly for an electric motor
CN113898652B (zh) * 2021-09-24 2023-06-23 中国船舶重工集团公司第七一九研究所 一种销式限位器

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Also Published As

Publication number Publication date
CN104204503B (zh) 2018-03-30
KR20140140066A (ko) 2014-12-08
PL2834512T3 (pl) 2017-07-31
US20150136085A1 (en) 2015-05-21
CN104204503A (zh) 2014-12-10
WO2013149914A1 (fr) 2013-10-10
US9777688B2 (en) 2017-10-03
ES2606338T3 (es) 2017-03-23
KR102071854B1 (ko) 2020-01-31
EP2834512A1 (fr) 2015-02-11
DE102012205580A1 (de) 2013-10-10

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