EP3094856B1 - Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element - Google Patents
Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element Download PDFInfo
- Publication number
- EP3094856B1 EP3094856B1 EP14805802.7A EP14805802A EP3094856B1 EP 3094856 B1 EP3094856 B1 EP 3094856B1 EP 14805802 A EP14805802 A EP 14805802A EP 3094856 B1 EP3094856 B1 EP 3094856B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cup
- fuel injection
- connecting element
- fuel
- securing
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 126
- 238000002347 injection Methods 0.000 title claims description 96
- 239000007924 injection Substances 0.000 title claims description 96
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 TeflonĀ® Polymers 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
Images
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00Ā -Ā 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
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8023—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of quick-acting mechanisms, e.g. clips
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8038—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of adhesives, glue or the like
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
-
- 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
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
-
- 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
-
- 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
- F02M2200/9038—Coatings
Definitions
- the invention relates to a connection device for fuel injection systems for connecting a fuel injection valve with a cup of a fuel-carrying component and a fuel injection system with such a connecting device. Specifically, the invention relates to the field of fuel injection systems for mixture-compression, spark-ignition internal combustion engines.
- a direct injection fuel injection system is known in an internal combustion engine.
- a cup is provided, to which a fuel injection valve via a hollow cylindrical pipe section and a connecting element can be connected.
- the connecting element is designed as a U-shaped clip having two spaced apart legs.
- the connecting device according to the invention with the features of claim 1 and the fuel injection system according to the invention with the features of claim 10 have the advantage that an improved design and a more compact design are possible. Specially a space-saving construction is possible, so that always higher requirements for efficient equipping and use of the engine compartment can be accommodated.
- the fuel injection system is suitable for gasoline direct injection.
- the connecting device is particularly suitable for fuel injection systems that are used for gasoline direct injection.
- the fuel-carrying component is preferably designed as a fuel distributor, in particular as a fuel distributor strip.
- a fuel distributor can on the one hand serve to distribute the fuel to a plurality of fuel injection valves, in particular high-pressure injection valves.
- the fuel distributor can serve as a common fuel storage for the fuel injection valves.
- the fuel injectors are then preferably connected via corresponding connecting means with the cups of the fuel distributor.
- the fuel injection valves then inject the fuel required for the combustion process under high pressure into the respective combustion chamber of the internal combustion engine.
- the fuel can be compressed via a high-pressure pump and quantity-controlled via a high-pressure line into the fuel distributor.
- valve plug a conspicuous and disturbing contribution to the overall noise of the engine can be made, which can be described as a valve plug.
- a valve leakage is caused by the rapid opening and closing of the fuel injection valve, in which the valve needle is adjusted with high dynamics in the respective end stops.
- the impact of the valve needle in the end stops leads to short-term, but very high contact forces, which can be transmitted via a housing of the fuel injection valve to the cylinder head and the fuel-carrying component, if there is direct contact. This then leads to the cylinder head or to the fuel component leading to a strong noise.
- connection device By means of the connection device, an effective decoupling on the one hand to the cylinder head and on the other hand to the fuel-carrying component can be realized in a compact design and thus with a small space requirement in an advantageous manner. Furthermore, it is possible to use an additional hold-down device, for example uses a spring force to save or designed with a reduced spring force. Thus, the fuel injection valves can be hung to improve the acoustic behavior and to reduce the external forces in an advantageous manner.
- the fuel injection valve By mounting the fuel injection valve to the cup of the fuel-carrying component by means of the connection means, the fuel injection valve can be positioned so that the fuel injection valve is not in direct contact with the cylinder head.
- the required seal between the fuel injection valve and the cylinder head can be chosen independently of the suspension.
- a Teflon seal may be provided between the fuel injection valve, in particular a valve tip of the fuel injection valve, and the cylinder head.
- a Teflon seal may be provided between the fuel injection valve, in particular a valve tip of the fuel injection valve, and the cylinder head.
- the cheapest for the particular application form of the seal can be realized here.
- a force acts on the fuel injector in the direction of the cylinder head.
- a certain holding force is required, which is applied by the support of the fuel injection valve, in particular the connection piece of the fuel injection valve to the cup, wherein the support via the at least one connecting element of the connecting device.
- the required holding force can be applied without the fuel injection valve is substantially adjusted from the predetermined mounting position. Therefore, a reliable attachment of the fuel injection valve to the cup of the fuel-carrying component by means of the connecting device is possible.
- the connecting element is designed so that it can be inserted into the cup within the outer cross section of the cup, the acoustically advantageous principle of the suspended fuel injection valves can also be implemented in very narrow installation spaces. Furthermore, can be done by the geometric configuration of the connecting element adaptation to the hydraulic operating pressures. Specifically, the connecting element can be configured as a wire section. Thus, the construction also has the advantage that by a simple variation of the cost-effective and accurate wire sections or the like, which can serve to design the connecting elements, an adaptation to the hydraulic operating pressures can take place.
- connection of the fuel injection valve is effected via at least one connecting element, which can be configured as a pin, wherein the connecting element is joined at least approximately 90 Ā° to the axial direction of the fuel injection valve and intercepting by positive engagement, the hydraulic forces of the internal pressure of the fuel component.
- the securing of the connecting element against loss can take place via an additional component, namely a securing element, which preferably does not protrude beyond the actual installation space of the fuel accumulator.
- a securing element which serves for securing the at least one connecting element when the at least one connecting element is inserted within the outer cross section of the cup in the cup, wherein the securing element can be arranged on the cup. It is particularly advantageous that the securing element for securing the at least one connecting element within the outer cross section of the cup can be arranged on the cup.
- the securing element can be designed, for example, via a circumferential securing ring and / or as a securing plate.
- the securing element is designed as at least partially annular securing element.
- the securing element can in this case be configured in particular as a part-ring-shaped securing element.
- the securing element can also be designed as a completely or largely closed, annular securing element.
- a connection of the ends of such an annular configured securing element in the assembled state is possible.
- the securing element has a circular cross-section or a right-hand cross-section.
- the securing element with a rectangular cross-section, it is particularly advantageous that the longer side of the rectangular cross-section along the longitudinal axis of the cup or the fuel injection valve is oriented. As a result, a flat construction with respect to an attachment to the cup is possible. This can be specifically ensured that such a band-shaped securing element is not or only slightly beyond the outside of the cup out. Preferably, the securing element is not on the outside out of the cup so that it fits into the cup inside the outer cross section of the cup.
- a bond may be provided to secure the at least one connecting element to the cup and / or to the fuel injection valve when the fuel injection system is mounted.
- the at least one connecting element for securing the connecting element in the mounted state is connectable to the cup and / or the fuel injection valve at at least one predetermined splice.
- an embodiment of the connecting element and / or the cup and / or the fuel injection valve are predetermined so that such a splice can be realized.
- a backup of the connecting element can also be realized by a plastic sheath. Therefore, it is also advantageous that the at least one connecting element in the mounted state can be secured by an at least partially executed plastic coating of the cup.
- a backup by caulking is possible.
- an additional securing element can also be omitted if the required area or the required areas are caulked.
- the at least one connecting element in the mounted state by at least one caulking of the cup is securable.
- the cup can be plastically deformed at least at one point or in at least one area. Such a plastic deformation can be done especially on the outside of the cup.
- the connecting element can then be permanently connected to the cup. In this case, a non-positive and positive connection between the cup and the connecting element can be produced by plastic deformation.
- a positive connection between the connecting element and the fuel injection valve in the assembled state of the fuel injection system can serve to secure the connecting element.
- an additional securing element can also be omitted if emptying under operating pressure is prevented by the positive locking.
- the connecting element is designed so that for securing the connecting element in the mounted state, a positive connection between the connecting element and the fuel injection valve can be generated.
- the fuel injection valve, in particular a connecting piece of the fuel injection valve is designed such that for securing the connecting element in the assembled state of the positive connection between the connecting element and the fuel injection valve, in particular between the connecting element and the connecting piece, can be generated.
- Fig. 1 shows a fuel injection system 1 with a cup 2, a fuel-carrying component 3 ( Fig. 7 ), a connection piece 4 of a fuel injection valve 5 ( Fig. 7 ) and a connecting device 6 according to a first embodiment of the invention in a partial, schematic sectional view.
- a longitudinal axis 7 is predetermined, along which the fuel injection valve 5 or the connecting piece 4 of the fuel injection valve 5 is arranged in the assembled state.
- the longitudinal axis 7 is at the same time an axis 7 of an inner space 8 of the cup 2, in which the connecting piece 4 is partially inserted.
- the cup 2 has a fuel inlet 9, via the fuel from the component 3 in the interior 8 of the cup 2 can be guided. Furthermore, the connection piece 4 has a fuel channel 10, via which the fuel is guided into an interior of the fuel injection valve 5.
- the configuration of the connecting device 6 of the fuel injection system 1 of the first exemplary embodiment is also described below with reference to FIGS Fig. 2 further described.
- Fig. 2 shows the in Fig. 1 illustrated connecting device 6 of the first embodiment in a schematic, spatial representation prior to assembly.
- the connecting device 6 has connecting elements 15, 16 and a securing element 17 in this exemplary embodiment.
- the connecting elements 15, 16 are designed as pin-shaped connecting elements 15, 16.
- the securing element 17 is configured in this embodiment as a part-ring-shaped securing element 17 and thus as a partially annular securing element 17.
- the fuse element 17 has a rectangular cross-section 18 in this embodiment.
- the rectangular cross section 18 of the securing element 17 is formed with a longer side 19 and a shorter side 20.
- the longer side 19 is oriented parallel to the longitudinal axis 7.
- the connecting elements 15, 16 each have a length 21 and a diameter 22.
- the length 21 of the connecting elements 15, 16 is in this case selected so that the connecting elements 15, 16 are not in the mounted state on an outer side 23 of the cup 2 addition. Furthermore, a sufficient space for the securing element 17 is also provided in this embodiment, so that the securing element 17 is also not in the mounted state on the outside 23 of the cup 2 addition.
- the connecting elements 15, 16 are preferably arranged parallel to one another in a plane 24 which is oriented perpendicular to the longitudinal axis 7 of the cup 2.
- a through hole 26 is formed on the cup 2, which extends on both sides by a wall 27 of the cup 2.
- the pin-shaped connecting element 15 can be inserted into the through-bore 26 in such a way that it can be inserted into the cup 2 within an outer cross-section 28 of the cup 2. This means that the connecting element 15 in the inserted state does not protrude beyond the outer side 23 of the cup 2.
- a corresponding through hole is provided for the pin-shaped connecting element 16.
- the connecting element 16 is likewise designed such that it can be inserted into the cup 2 within the outer cross section 28 of the cup 2.
- the two connecting elements 15, 16 are arranged at least approximately parallel to one another in the plane 24 in order to hold the fuel injection valve 5 on the shoulder 25 of the connecting piece 4.
- the fuel injection valve 5 is connected to the cup 2 of the fuel-carrying component 3.
- the securing element 17 is inserted into a recess 29 of the cup 2 provided on the outside 23 of the cup 2.
- the securing element 17 is disposed within the outer cross section 28 of the cup 2 on the cup 2.
- the securing element 17 is not in the mounted state on the outside 23 of the cup 2 addition.
- the securing element 17 serves to secure the two connecting elements 15, 16.
- the securing element 17 prevents in this embodiment, that the connecting elements 15, 16 slip out of their respective through hole 26 or pushed out. In operation, when the fuel is supplied at high pressure via the fuel inlet 9, the high hydraulic forces are absorbed by the connecting elements 15, 16 of the connecting device 6. The positioning of the connecting elements 15, 16 required for this function is always ensured by the securing element 17.
- a securing of the connecting element 15 via one or more splices 35, 36 take place.
- the splices 35, 36 can connect the connecting element 15 with the cup 2.
- corresponding splices 37, 38 serve to connect the connecting element 15 to the connecting piece 4 in the region of the shoulder 25.
- the connecting element 15 may be connected to the cup 2 and / or the fuel injection valve 5 for securing the connecting element 15 in the mounted state on at least one predetermined splice 35 to 38.
- the connecting element 16 for securing the connecting element 16 in the assembled state can also be connected to the cup 2 and / or the fuel injection valve 5 at at least one predetermined adhesion point.
- Fig. 3 shows a fuel injection system 1 with a connecting device 6 according to a second embodiment in a partial, schematic sectional view. Further shows Fig. 4 in the Fig. 3 illustrated connecting device 6 of the second embodiment in a schematic, spatial representation prior to assembly.
- the securing element 17 has a circular cross-section 18.
- the securing element 17 may also have an elliptical cross section 18.
- other cross sections 18, in particular a square cross section 18, are conceivable.
- the cross section 18 of the securing element 17 has a diameter 39.
- the diameter 39 can hereby be the same or different from the diameter 22 of the connecting elements 15, 16 are selected.
- the securing element 17 is designed in this embodiment as a part-annular securing element 17.
- the length 21 of the connecting elements 15, 16 is chosen so short that the securing element 17 can be arranged at least partially within the outer cross section 28 of the cup 2.
- the securing element 17 is arranged in an annular recess 29, which is configured on the outside 23 of the cup 2.
- Fig. 5 shows a fuel injection system 1 with a connecting device 6 according to a third embodiment in a partial, schematic sectional view.
- the connecting device 6 has in this embodiment, the Connecting elements 15, 16 on.
- the connecting element 15 is inserted into the through hole 26 of the cup 2.
- caulking 40, 41 are provided, via which the connecting element 15 is secured.
- the caulking 40, 41 are in this case provided on the outside 23 of the cup 2.
- a positive and positive connection can be made with the connecting element 15.
- the securing element 17 and the recess 29 of the cup 2 can be omitted in this embodiment.
- the connecting element 16 can be secured in a corresponding manner in its through hole by caulking.
- Fig. 5A shows a fuel injection system 1 with a connecting device 6 according to a possible modification of the third embodiment in a partial, schematic sectional view.
- the connecting device 6 has in this modified embodiment, the connecting elements 15, 16.
- the bore 26 is designed as a blind hole 26.
- a bore bottom 42 of the blind hole 26 is in this case in the wall 27 of the cup 2.
- the connecting element 15 with its two ends 43, 44 each project into the wall 27.
- a two-sided attachment of the connecting element 15 to the cup 2 is possible along the longitudinal axis 7.
- the connecting element 15 is inserted into the blind hole 26 of the cup 2. Further, in this modification, only one (exactly one) caulking 40 is provided, via which the connecting element 15 is secured in the blind bore 26.
- the caulking 40 is provided here on the outside 23 of the cup 2. Depending on the configuration of the caulking 40 in this case also a positive and positive connection can be made with the connecting element 15.
- the bore 26 thus penetrates the wall 27 only on one side and on the other hand as a blind hole 26 'executed.
- the securing element 17 and the recess 29 of the cup 2 can be omitted.
- the connecting element 16 can be secured in a corresponding manner in its blind hole by unilateral caulking.
- the embodiment with a blind hole 26 'or the bore 26 as a blind hole 26 optionally also in the other embodiments is a possible modification.
- Fig. 6 shows a fuel injection system 1 with a connecting device 6 according to a fourth embodiment in a partial, schematic sectional view.
- a recess 45 is provided on the connecting element 15.
- a bulge 46 is provided on the shoulder 25 of the connector 4.
- a positive connection 47 is formed between the bulge 46 of the shoulder 25 of the connecting piece 4 of the fuel injection valve 5 and the recess 45 of the connecting element 15.
- fuel is fed via the fuel inlet 9 into the interior 8 of the cup 2.
- a seal 48 between the connector 4 and the cup 2 is provided. Due to the fuel pressure (operating pressure), the connecting piece 4 is acted upon in a direction 49 along the longitudinal axis 7 in the direction of a cylinder head of the internal combustion engine. By the fuel pressure of the positive connection 47 is ensured for self-fixing of the connecting element 5.
- the space required depending on the design can be limited to the outer cross section 28 or at least only slightly larger than the outer cross section 28 of the cup 2. This results in optimized conditions for utilization of the available space in the engine compartment of a motor vehicle or the like.
- Fig. 7 shows a fuel injection system 1 in a schematic representation according to a possible embodiment of the invention.
- the fuel-carrying component 3 has in this embodiment a base body 50 and cups 2, 2A, 2B.
- the main body 50 may be configured as a tubular base body 50.
- the component 3 can thus be designed as a fuel distributor 3, in particular fuel distributor strip 3.
- the component 3 may serve for storing fuel and distributing the stored fuel to a plurality of fuel injection valves 5, 5A, 5B of the fuel injection system 1.
- the number of fuel injection valves 5, 5A, 5B is chosen here in relation to the respective application.
- a plurality of components 3, in particular, two main body 50 be provided to allow a division of the fuel on opposite rows of cylinders of an internal combustion engine.
- the fuel injection system 1 has a tank 51 and a high-pressure pump 52. If appropriate, a prefeed pump may also be provided here. In addition, a pressure relief valve 53 is provided to limit the pressure of the fuel delivered into the body 50.
- the fuel injection valves 5, 5A, 5B are connected to the cups 2, 2A, 2B of the component 3 via corresponding connecting devices 6, 6A, 6B.
- plastic coating 17 the connecting elements 15, 16, their design and arrangement in a corresponding manner with reference to Fig. 1 to 6 are described secured to the cup 2.
- the connecting means 6A, 6B as plastic sheaths 17A, 17B formed securing elements 17A, 17B.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Die Erfindung betrifft eine Verbindungseinrichtung fĆ¼r Brennstoffeinspritzanlagen zur Verbindung eines Brennstoffeinspritzventils mit einer Tasse einer Brennstoff fĆ¼hrenden Komponente und eine Brennstoffeinspritzanlage mit solche einer Verbindungseinrichtung. Speziell betrifft die Erfindung das Gebiet der Brennstoffeinspritzanlagen fĆ¼r gemischverdichtende, fremdgezĆ¼ndete Brennkraftmaschinen.The invention relates to a connection device for fuel injection systems for connecting a fuel injection valve with a cup of a fuel-carrying component and a fuel injection system with such a connecting device. Specifically, the invention relates to the field of fuel injection systems for mixture-compression, spark-ignition internal combustion engines.
Aus der
Das aus der
Aus der
Die erfindungsgemƤĆe Verbindungseinrichtung mit den Merkmalen des Anspruchs 1 und die erfindungsgemƤĆe Brennstoffeinspritzanlage mit den Merkmalen des Anspruchs 10 haben den Vorteil, dass eine verbesserte Ausgestaltung und ein kompakterer Aufbau ermƶglicht sind. Speziell ist eine Platz sparende Bauweise mƶglich, so dass den immer hƶheren Anforderungen an eine effiziente BestĆ¼ckung und Nutzung des Motorraums Rechnung getragen werden kann.The connecting device according to the invention with the features of
Durch die in den UnteransprĆ¼chen aufgefĆ¼hrten MaĆnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Verbindungseinrichtung und der im Anspruch 10 angegebenen Brennstoffeinspritzanlage mƶglich.The measures listed in the dependent claims advantageous refinements of the connection means specified in
Speziell eignet sich die Brennstoffeinspritzanlage zur Benzindirekteinspritzung. Ferner eignet sich die Verbindungseinrichtung speziell fĆ¼r Brennstoffeinspritzanlagen, die zur Benzindirekteinspritzung dienen. Die Brennstoff fĆ¼hrende Komponente ist vorzugsweise als Brennstoffverteiler, insbesondere als Brennstoffverteilerleiste, ausgebildet. Solch ein Brennstoffverteiler kann zum einen zur Verteilung des Brennstoffs auf mehrere Brennstoffeinspritzventile, insbesondere Hochdruckeinspritzventile, dienen. Zum anderen kann der Brennstoffverteiler als gemeinsamer Brennstoffspeicher fĆ¼r die Brennstoffeinspritzventile dienen. Die Brennstoffeinspritzventile sind dann vorzugsweise Ć¼ber sich entsprechende Verbindungseinrichtungen mit den Tassen des Brennstoffverteilers verbunden. Im Betrieb spritzen die Brennstoffeinspritzventile den fĆ¼r den Verbrennungsvorgang erforderlichen Brennstoff dann unter hohem Druck in den jeweiligen Verbrennungsraum der Brennkraftmaschine ein. Der Brennstoff kann hierbei Ć¼ber eine Hochdruckpumpe verdichtet und mengengesteuert Ć¼ber eine Hochdruckleitung in den Brennstoffverteiler gefƶrdert werden.Specifically, the fuel injection system is suitable for gasoline direct injection. Furthermore, the connecting device is particularly suitable for fuel injection systems that are used for gasoline direct injection. The fuel-carrying component is preferably designed as a fuel distributor, in particular as a fuel distributor strip. Such a fuel distributor can on the one hand serve to distribute the fuel to a plurality of fuel injection valves, in particular high-pressure injection valves. On the other hand, the fuel distributor can serve as a common fuel storage for the fuel injection valves. The fuel injectors are then preferably connected via corresponding connecting means with the cups of the fuel distributor. During operation, the fuel injection valves then inject the fuel required for the combustion process under high pressure into the respective combustion chamber of the internal combustion engine. In this case, the fuel can be compressed via a high-pressure pump and quantity-controlled via a high-pressure line into the fuel distributor.
Speziell bei elektromagnetischen Hochdruck-Einspritzventilen, die bei Otto-Motoren mit Direkteinspritzung zum Einsatz kommen kƶnnen, kann ein auffƤlliger und stƶrender Beitrag zum GesamtgerƤusch des Motors geleistet werden, der als Ventiltickern beschreibbar ist. Solch ein Ventiltickern entsteht durch das schnelle Ćffnen und SchlieĆen des Brennstoffeinspritzventils, bei dem die Ventilnadel mit hoher Dynamik in die jeweiligen EndanschlƤge verstellt wird. Das Auftreffen der Ventilnadel in den EndanschlƤgen fĆ¼hrt zu kurzzeitigen, aber sehr hohen KontaktkrƤften, die Ć¼ber ein GehƤuse des Brennstoffeinspritzventils an den Zylinderkopf und die Brennstoff fĆ¼hrende Komponente Ć¼bertragen werden kƶnnen, wenn hier ein direkter Kontakt entsteht. Dies fĆ¼hrt dann am Zylinderkopf beziehungsweise an der Brennstoff fĆ¼hrenden Komponente zu einer starken GerƤuschentwicklung.Especially with electromagnetic high-pressure injection valves, which can be used in gasoline engines with direct injection, a conspicuous and disturbing contribution to the overall noise of the engine can be made, which can be described as a valve plug. Such a valve leakage is caused by the rapid opening and closing of the fuel injection valve, in which the valve needle is adjusted with high dynamics in the respective end stops. The impact of the valve needle in the end stops leads to short-term, but very high contact forces, which can be transmitted via a housing of the fuel injection valve to the cylinder head and the fuel-carrying component, if there is direct contact. This then leads to the cylinder head or to the fuel component leading to a strong noise.
Durch die Verbindungseinrichtung kann in vorteilhafter Weise eine wirkungsvolle Entkopplung einerseits zu dem Zylinderkopf und andererseits zu der Brennstoff fĆ¼hrenden Komponente bei einem kompakten Aufbau und somit bei einem geringen Platzbedarf realisiert werden. Ferner ist es mƶglich, einen zusƤtzlichen Niederhalter, der beispielsweise eine Federkraft nutzt, einzusparen oder mit einer reduzierten Federkraft auszulegen. Somit kƶnnen die Brennstoffeinspritzventile zur Verbesserung des akustischen Verhaltens sowie zur Reduktion der ƤuĆeren KrƤfte in vorteilhafter Weise aufgehƤngt werden. Durch die Montage des Brennstoffeinspritzventils an der Tasse der Brennstoff fĆ¼hrenden Komponente mittels der Verbindungseinrichtung kann das Brennstoffeinspritzventil so positioniert werden, dass das Brennstoffeinspritzventil nicht im direkten Kontakt mit dem Zylinderkopf ist. Die erforderliche Abdichtung zwischen dem Brennstoffeinspritzventil und dem Zylinderkopf kann hierbei unabhƤngig von der AufhƤngung gewƤhlt werden. Beispielsweise kann zwischen dem Brennstoffeinspritzventil, insbesondere einer Ventilspitze des Brennstoffeinspritzventils, und dem Zylinderkopf eine Teflondichtung vorgesehen sein. AuĆerdem bestehen groĆe konstruktive Freiheiten bezĆ¼glich der Abdichtung zwischen dem Brennstoffeinspritzventil, insbesondere einem AnschlussstĆ¼ck des Brennstoffeinspritzventils, und der Tasse der Brennstoff fĆ¼hrenden Komponente. Somit kann auch hier die fĆ¼r den jeweiligen Anwendungsfall gĆ¼nstigste Form der Abdichtung realisiert werden.By means of the connection device, an effective decoupling on the one hand to the cylinder head and on the other hand to the fuel-carrying component can be realized in a compact design and thus with a small space requirement in an advantageous manner. Furthermore, it is possible to use an additional hold-down device, for example uses a spring force to save or designed with a reduced spring force. Thus, the fuel injection valves can be hung to improve the acoustic behavior and to reduce the external forces in an advantageous manner. By mounting the fuel injection valve to the cup of the fuel-carrying component by means of the connection means, the fuel injection valve can be positioned so that the fuel injection valve is not in direct contact with the cylinder head. The required seal between the fuel injection valve and the cylinder head can be chosen independently of the suspension. For example, a Teflon seal may be provided between the fuel injection valve, in particular a valve tip of the fuel injection valve, and the cylinder head. In addition, there are great constructive freedom with respect to the seal between the fuel injection valve, in particular a connection piece of the fuel injection valve, and the cup of the fuel-carrying component. Thus, the cheapest for the particular application form of the seal can be realized here.
Im Betrieb wirkt aufgrund des Drucks des zugefĆ¼hrten Brennstoffs eine Kraft auf das Brennstoffeinspritzventil in Richtung des Zylinderkopfs. Um das Brennstoffeinspritzventil hierbei an der Tasse zu halten, ist eine gewisse Haltekraft erforderlich, die durch die AbstĆ¼tzung des Brennstoffeinspritzventils, insbesondere des AnschlussstĆ¼cks des Brennstoffeinspritzventils, an der Tasse aufgebracht wird, wobei die AbstĆ¼tzung Ć¼ber das zumindest eine Verbindungselement der Verbindungseinrichtung erfolgt. Somit kann die erforderliche Haltekraft aufgebracht werden, ohne dass das Brennstoffeinspritzventil wesentlich aus der vorgegebenen Montageposition verstellt wird. Daher ist eine zuverlƤssige Befestigung des Brennstoffeinspritzventils an der Tasse der Brennstoff fĆ¼hrenden Komponente mittels der Verbindungseinrichtung mƶglich.In operation, due to the pressure of the fuel supplied, a force acts on the fuel injector in the direction of the cylinder head. In order to hold the fuel injection valve in this case on the cup, a certain holding force is required, which is applied by the support of the fuel injection valve, in particular the connection piece of the fuel injection valve to the cup, wherein the support via the at least one connecting element of the connecting device. Thus, the required holding force can be applied without the fuel injection valve is substantially adjusted from the predetermined mounting position. Therefore, a reliable attachment of the fuel injection valve to the cup of the fuel-carrying component by means of the connecting device is possible.
Da das Verbindungselement so ausgestaltet ist, dass es innerhalb des AuĆenquerschnitts der Tasse in die Tasse einfĆ¼gbar ist, kann das akustisch vorteilhafte Prinzip der aufgehƤngten Brennstoffeinspritzventile auch in sehr engen BaurƤumen umgesetzt werden. Ferner kann durch die geometrische Ausgestaltung des Verbindungselements eine Anpassung an die hydraulischen BetriebsdrĆ¼cke erfolgen. Speziell kann das Verbindungselement als Drahtabschnitt ausgestaltet sein. Somit hat die Konstruktion auch den Vorteil, dass durch eine einfache Variation der kostengĆ¼nstigen und genauen Drahtabschnitte oder dergleichen, die zur Ausgestaltung der Verbindungselemente dienen kƶnnen, eine Anpassung an die hydraulischen BetriebsdrĆ¼cke erfolgen kann.Since the connecting element is designed so that it can be inserted into the cup within the outer cross section of the cup, the acoustically advantageous principle of the suspended fuel injection valves can also be implemented in very narrow installation spaces. Furthermore, can be done by the geometric configuration of the connecting element adaptation to the hydraulic operating pressures. Specifically, the connecting element can be configured as a wire section. Thus, the construction also has the advantage that by a simple variation of the cost-effective and accurate wire sections or the like, which can serve to design the connecting elements, an adaptation to the hydraulic operating pressures can take place.
Je nach Ausgestaltung der Verbindungseinrichtung ist es mƶglich, gegebenenfalls eine trennbare AufhƤngung des Brennstoffeinspritzventils an der Tasse der Brennstoff fĆ¼hrenden Komponente zu realisieren. Hierbei ragen keine Verbindungsteile, das heiĆt keines der Verbindungselemente, Ć¼ber den eigentlichen Brennstoffspeicher hinaus. Die Befestigung des Brennstoffeinspritzventils erfolgt dabei Ć¼ber mindestens ein Verbindungselement, das als Stift ausgestaltet sein kann, wobei das Verbindungselement wenigstens ungefƤhr 90Ā° zur Achsrichtung des Brennstoffeinspritzventils gefĆ¼gt wird und durch Formschluss die hydraulischen KrƤfte des Innendrucks der Brennstoff fĆ¼hrenden Komponente abfƤngt. Die Absicherung des Verbindungselements gegen Verlieren kann Ć¼ber ein Zusatzbauteil, nƤmlich ein Sicherungselement, erfolgen, welches vorzugsweise nicht Ć¼ber den eigentlichen Bauraum des Kraftstoffspeichers hinausragt.Depending on the configuration of the connecting device, it is possible, if appropriate to realize a separable suspension of the fuel injection valve to the cup of the fuel component leading. In this case, no connecting parts, that is, none of the connecting elements protrude beyond the actual fuel storage. The attachment of the fuel injection valve is effected via at least one connecting element, which can be configured as a pin, wherein the connecting element is joined at least approximately 90 Ā° to the axial direction of the fuel injection valve and intercepting by positive engagement, the hydraulic forces of the internal pressure of the fuel component. The securing of the connecting element against loss can take place via an additional component, namely a securing element, which preferably does not protrude beyond the actual installation space of the fuel accumulator.
Somit ist es vorteilhaft, dass ein Sicherungselement vorgesehen ist, das zum Sichern des zumindest einen Verbindungselements dient, wenn das zumindest eine Verbindungselement innerhalb des AuĆenquerschnitts der Tasse in die Tasse eingefĆ¼gt ist, wobei das Sicherungselement an der Tasse anordenbar ist. Hierbei ist es besonders vorteilhaft, dass das Sicherungselement zum Sichern des zumindest einen Verbindungselements innerhalb des AuĆenquerschnitts der Tasse an der Tasse anordenbar ist. Damit ragt keines der Bauteile der Verbindungseinrichtung Ć¼ber den AuĆenquerschnitt der Tasse hinaus, so dass sich eine bestmƶgliche Reduzierung des Platzbedarfs ergibt.Thus, it is advantageous that a securing element is provided, which serves for securing the at least one connecting element when the at least one connecting element is inserted within the outer cross section of the cup in the cup, wherein the securing element can be arranged on the cup. It is particularly advantageous that the securing element for securing the at least one connecting element within the outer cross section of the cup can be arranged on the cup. Thus, none of the components of the connecting device protrudes beyond the outer cross section of the cup, so that there is the best possible reduction of the space required.
Das Sicherungselement kann zum Beispiel Ć¼ber einen umlaufenden Sicherungsring und/oder als Sicherungsblech ausgefĆ¼hrt sein. Somit ist es vorteilhaft, dass das Sicherungselement als zumindest abschnittsweise ringfƶrmiges Sicherungselement ausgestaltet ist. Das Sicherungselement kann hierbei insbesondere als teilringfƶrmiges Sicherungselement ausgestaltet sein. Allerdings kann das Sicherungselement auch als ganz oder weitgehend geschlossenes, ringfƶrmiges Sicherungselement ausgestaltet sein. Gegebenenfalls ist auch eine Verbindung der Enden solch eines ringfƶrmig ausgestalteten Sicherungselements im montierten Zustand mƶglich. Ferner ist es somit vorteilhaft, dass das Sicherungselement einen kreisfƶrmigen Querschnitt oder einen rechtfƶrmigen Querschnitt aufweist. Bei einer Ausgestaltung des Sicherungselements mit einem rechteckigen Querschnitt ist es insbesondere von Vorteil, dass die lƤngere Seite des rechteckigen Querschnitts entlang der LƤngsachse der Tasse beziehungsweise des Brennstoffeinspritzventils orientiert ist. Hierdurch ist eine flache Bauweise in Bezug auf ein Anbringen an der Tasse mƶglich. Dadurch kann speziell gewƤhrleistet werden, dass solch ein bandfƶrmiges Sicherungselement nicht oder nur geringfĆ¼gig Ć¼ber die AuĆenseite der Tasse hinaus steht. Vorzugsweise steht das Sicherungselement nicht Ć¼ber die AuĆenseite der Tasse hinaus, so dass es sich innerhalb des AuĆenquerschnitts der Tasse in die Tasse einfĆ¼gt.The securing element can be designed, for example, via a circumferential securing ring and / or as a securing plate. Thus, it is advantageous that the securing element is designed as at least partially annular securing element. The securing element can in this case be configured in particular as a part-ring-shaped securing element. However, the securing element can also be designed as a completely or largely closed, annular securing element. Optionally, a connection of the ends of such an annular configured securing element in the assembled state is possible. Furthermore, it is thus advantageous that the securing element has a circular cross-section or a right-hand cross-section. In one embodiment of the securing element with a rectangular cross-section, it is particularly advantageous that the longer side of the rectangular cross-section along the longitudinal axis of the cup or the fuel injection valve is oriented. As a result, a flat construction with respect to an attachment to the cup is possible. This can be specifically ensured that such a band-shaped securing element is not or only slightly beyond the outside of the cup out. Preferably, the securing element is not on the outside out of the cup so that it fits into the cup inside the outer cross section of the cup.
ZusƤtzlich oder alternativ kann auch eine Verklebung vorgesehen sein, um das zumindest eine Verbindungselement an der Tasse und/oder an dem Brennstoffeinspritzventil zu sichern, wenn die Brennstoffeinspritzanlage montiert ist. Somit ist es vorteilhaft, dass das zumindest eine Verbindungselement zum Sichern des Verbindungselements im montierten Zustand an zumindest einer vorgegebenen Klebestelle mit der Tasse und/oder dem Brennstoffeinspritzventil verbindbar ist. Hierbei sind eine Ausgestaltung des Verbindungselements und/oder der Tasse und/oder des Brennstoffeinspritzventils so vorgegeben, dass solche eine Klebestelle realisiert werden kann.Additionally or alternatively, a bond may be provided to secure the at least one connecting element to the cup and / or to the fuel injection valve when the fuel injection system is mounted. Thus, it is advantageous that the at least one connecting element for securing the connecting element in the mounted state is connectable to the cup and / or the fuel injection valve at at least one predetermined splice. Here, an embodiment of the connecting element and / or the cup and / or the fuel injection valve are predetermined so that such a splice can be realized.
ZusƤtzlich oder alternativ kann eine Sicherung des Verbindungselements auch durch eine Kunststoffummantelung realisiert werden. Daher ist es ebenfalls von Vorteil, dass das zumindest eine Verbindungselement im montierten Zustand durch eine zumindest teilweise ausgefĆ¼hrte Kunststoffummantelung der Tasse sicherbar ist.Additionally or alternatively, a backup of the connecting element can also be realized by a plastic sheath. Therefore, it is also advantageous that the at least one connecting element in the mounted state can be secured by an at least partially executed plastic coating of the cup.
In vorteilhafter Weise ist auch eine Sicherung durch Verstemmen mƶglich. Bei dieser Ausgestaltung kann ein zusƤtzliches Sicherungselement auch entfallen, wenn der erforderliche Bereich beziehungsweise die erforderlichen Bereiche verstemmt werden. Somit ist es vorteilhaft, dass das zumindest eine Verbindungselement im montierten Zustand durch zumindest eine Verstemmung der Tasse sicherbar ist. Hierbei kann die Tasse an zumindest einer Stelle beziehungsweise in zumindest einem Bereich plastisch verformt werden. Solch eine plastische Verformung kann speziell an der AuĆenseite der Tasse erfolgen. Das Verbindungselement kann dann unlƶsbar mit der Tasse verbunden sein. Hierbei kann auch eine kraft- und formschlĆ¼ssige Verbindung zwischen der Tasse und dem Verbindungselement durch plastisches Verformen hergestellt werden.Advantageously, a backup by caulking is possible. In this embodiment, an additional securing element can also be omitted if the required area or the required areas are caulked. Thus, it is advantageous that the at least one connecting element in the mounted state by at least one caulking of the cup is securable. Here, the cup can be plastically deformed at least at one point or in at least one area. Such a plastic deformation can be done especially on the outside of the cup. The connecting element can then be permanently connected to the cup. In this case, a non-positive and positive connection between the cup and the connecting element can be produced by plastic deformation.
AuĆerdem kann auch ein Formschluss zwischen dem Verbindungselement und dem Brennstoffeinspritzventil im montierten Zustand der Brennstoffeinspritzanlage zum Sichern des Verbindungselements dienen. In solch einem Fall kann ein zusƤtzliches Sicherungselement auch entfallen, wenn durch den Formschluss ein Auswandern unter Betriebsdruck verhindert wird. Somit ist es vorteilhaft, dass das Verbindungselement so ausgestaltet ist, dass zum Sichern des Verbindungselements im montierten Zustand ein Formschluss zwischen dem Verbindungselement und dem Brennstoffeinspritzventil erzeugbar ist. Entsprechend ist es vorteilhaft, dass das Brennstoffeinspritzventil, insbesondere ein AnschlussstĆ¼ck des Brennstoffeinspritzventils, so ausgestaltet ist, dass zum Sichern des Verbindungselements im montierten Zustand der Formschluss zwischen dem Verbindungselement und dem Brennstoffeinspritzventil, insbesondere zwischen dem Verbindungselement und dem AnschlussstĆ¼ck, erzeugbar ist.In addition, a positive connection between the connecting element and the fuel injection valve in the assembled state of the fuel injection system can serve to secure the connecting element. In such a case, an additional securing element can also be omitted if emptying under operating pressure is prevented by the positive locking. Thus, it is advantageous that the connecting element is designed so that for securing the connecting element in the mounted state, a positive connection between the connecting element and the fuel injection valve can be generated. Accordingly, it is advantageous that the fuel injection valve, in particular a connecting piece of the fuel injection valve, is designed such that for securing the connecting element in the assembled state of the positive connection between the connecting element and the fuel injection valve, in particular between the connecting element and the connecting piece, can be generated.
Je nach Ausgestaltung und Anwendungsfall ist auch eine Kombination der SicherungsmaĆnahmen denkbar. Ferner ist es prinzipiell auch denkbar, dass mehrere SicherungsmaĆnahmen an einer Brennstoffeinspritzanlage zum Einsatz kommen, die unterschiedliche Verbindungselemente und/oder unterschiedliche Verbindungseinrichtungen der Brennstoffeinspritzanlage betreffen. Speziell kann somit eine zuverlƤssige und GerƤusch reduzierende AufhƤngung eines Brennstoffeinspritzventils an der Brennstoff fĆ¼hrenden Komponente fĆ¼r kleine EinbaurƤume realisiert werden.Depending on the design and application, a combination of the security measures is conceivable. Furthermore, it is also conceivable in principle that several safety measures are applied to a fuel injection system, which relate to different connecting elements and / or different connection devices of the fuel injection system. In particular, a reliable and noise-reducing suspension of a fuel injection valve can thus be realized on the fuel-carrying component for small installation spaces.
Bevorzugte AusfĆ¼hrungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung unter Bezugsnahme auf die beigefĆ¼gten Zeichnungen, in denen sich entsprechende Elemente mit Ć¼bereinstimmenden Bezugszeichen versehen sind, nƤher erlƤutert. Es zeigen:
-
Fig. 1 eine Brennstoffeinspritzanlage mit einer Verbindungseinrichtung entsprechend einem ersten AusfĆ¼hrungsbeispiel der Erfindung in einer auszugsweisen, schematischen Schnittdarstellung; -
Fig. 2 die inFig. 1 dargestellte Verbindungseinrichtung des ersten AusfĆ¼hrungsbeispiels der Erfindung in einer schematischen, rƤumlichen Darstellung; -
Fig. 3 eine Brennstoffeinspritzanlage mit einer Verbindungseinrichtung entsprechend einem zweiten AusfĆ¼hrungsbeispiel der Erfindung in einer auszugsweisen, schematischen Schnittdarstellung; -
Fig. 4 die inFig. 3 dargestellte Verbindungseinrichtung des zweiten AusfĆ¼hrungsbeispiels der Erfindung in einer schematischen, rƤumlichen Darstellung; -
Fig. 5 eine Brennstoffeinspritzanlage mit einer Verbindungseinrichtung entsprechend einem dritten AusfĆ¼hrungsbeispiel der Erfindung in einer auszugsweisen, schematischen Schnittdarstellung; -
Fig. 5 eine Brennstoffeinspritzanlage mit einer Verbindungseinrichtung entsprechend einer mƶglichen Abwandlung des dritten AusfĆ¼hrungsbeispiels der Erfindung in einer auszugsweisen, schematischen Schnittdarstellung; -
Fig. 6 eine Brennstoffeinspritzanlage mit einer Verbindungseinrichtung entsprechend einem vierten AusfĆ¼hrungsbeispiel der Erfindung in einer auszugsweisen, schematischen Schnittdarstellung und -
Fig. 7 eine Brennstoffeinspritzanlage in einer schematischen Darstellung entsprechend einer mƶglichen Ausgestaltung der Erfindung.
-
Fig. 1 a fuel injection system with a connecting device according to a first embodiment of the invention in a partial, schematic sectional view; -
Fig. 2 in theFig. 1 illustrated connecting device of the first embodiment of the invention in a schematic, spatial representation; -
Fig. 3 a fuel injection system with a connecting device according to a second embodiment of the invention in a partial, schematic sectional view; -
Fig. 4 in theFig. 3 illustrated connecting device of the second embodiment of the invention in a schematic, spatial representation; -
Fig. 5 a fuel injection system with a connecting device according to a third embodiment of the invention in a partial, schematic sectional view; -
Fig. 5 a fuel injection system with a connecting device according to a possible modification of the third embodiment of the invention in a partial, schematic sectional view; -
Fig. 6 a fuel injection system with a connecting device according to a fourth embodiment of the invention in a partial, schematic sectional view and -
Fig. 7 a fuel injection system in a schematic representation according to a possible embodiment of the invention.
Die Tasse 2 weist einen Brennstoffzulauf 9 auf, Ć¼ber den Brennstoff aus der Komponente 3 in den Innenraum 8 der Tasse 2 fĆ¼hrbar ist. Ferner weist das AnschlussstĆ¼ck 4 einen Brennstoffkanal 10 auf, Ć¼ber den der Brennstoff in einen Innenraum des Brennstoffeinspritzventils 5 gefĆ¼hrt wird.The
Die Ausgestaltung der Verbindungseinrichtung 6 der Brennstoffeinspritzanlage 1 des ersten AusfĆ¼hrungsbeispiels ist im Folgenden auch unter Bezugnahme auf die
Somit sind die beiden Verbindungselemente 15, 16 zumindest nƤherungsweise parallel zueinander in der Ebene 24 angeordnet, um das Brennstoffeinspritzventil 5 an dem Absatz 25 des AnschlussstĆ¼cks 4 zu halten. Dadurch ist das Brennstoffeinspritzventil 5 mit der Tasse 2 der Brennstoff fĆ¼hrenden Komponente 3 verbunden.Thus, the two connecting
Das Sicherungselement 17 ist in eine an der AuĆenseite 23 der Tasse 2 vorgesehene Ausnehmung 29 der Tasse 2 eingefĆ¼gt. Hierbei ist das Sicherungselement 17 innerhalb des AuĆenquerschnitts 28 der Tasse 2 an der Tasse 2 angeordnet. Somit steht das Sicherungselement 17 im montierten Zustand nicht Ć¼ber die AuĆenseite 23 der Tasse 2 hinaus.The securing
Das Sicherungselement 17 dient zum Sichern der beiden Verbindungselemente 15, 16. Das Sicherungselement 17 verhindert in diesem AusfĆ¼hrungsbeispiel, dass die Verbindungselemente 15, 16 aus ihrer jeweiligen Durchgangsbohrung 26 herausrutschen oder herausgedrĆ¼ckt werden. Wenn im Betrieb der Brennstoff mit hohem Druck Ć¼ber den Brennstoffzulauf 9 zugefĆ¼hrt wird, dann werden die hohen hydraulischen KrƤfte von den Verbindungselementen 15, 16 der Verbindungseinrichtung 6 aufgenommen. Die fĆ¼r diese Funktion erforderliche Positionierung der Verbindungselemente 15, 16 ist durch das Sicherungselement 17 stets gewƤhrleistet.The securing
Bei einer abgewandelten Ausgestaltung kann zusƤtzlich oder alternativ auch eine Sicherung des Verbindungselements 15 Ć¼ber eine oder mehrere Klebestellen 35, 36 erfolgen. Die Klebestellen 35, 36 kƶnnen das Verbindungselement 15 mit der Tasse 2 verbinden. Ferner ist es mƶglich, dass entsprechende Klebestellen 37, 38 zum Verbinden des Verbindungselements 15 mit dem AnschlussstĆ¼ck 4 im Bereich des Absatzes 25 dienen. Somit kann das Verbindungselement 15 zum Sichern des Verbindungselements 15 im montierten Zustand an zumindest einer vorgegebenen Klebestelle 35 bis 38 mit der Tasse 2 und/oder dem Brennstoffeinspritzventil 5 verbunden sein. Entsprechend kann auch das Verbindungselement 16 zum Sichern des Verbindungselements 16 im montierten Zustand an zumindest einer vorgegebenen Klebestelle mit der Tasse 2 und/oder dem Brennstoffeinspritzventil 5 verbunden sein.In a modified embodiment, additionally or alternatively, a securing of the connecting
Das Sicherungselement 17 und die Ausnehmung 29 der Tasse 2 kƶnnen in diesem AusfĆ¼hrungsbeispiel entfallen. Das Verbindungselement 16 kann auf entsprechende Weise in seiner Durchgangsbohrung durch Verstemmen gesichert werden.The securing
Das Verbindungselement 15 ist in die Sacklochbohrung 26 der Tasse 2 eingefĆ¼gt. Ferner ist bei dieser Abwandlung nur eine (genau eine) Verstemmung 40 vorgesehen, Ć¼ber die das Verbindungselement 15 in der Sacklochbohrung 26 gesichert ist. Die Verstemmung 40 ist hierbei an der AuĆenseite 23 der Tasse 2 vorgesehen. Je nach Ausgestaltung der Verstemmung 40 kann hierbei auch ein Kraft- und Formschluss mit dem Verbindungselement 15 hergestellt werden.The connecting
Die Bohrung 26 durchdringt somit die Wand 27 nur einseitig und ist andererseits als Sackloch 26' ausgefĆ¼hrt.The
Das Sicherungselement 17 und die Ausnehmung 29 der Tasse 2 kƶnnen entfallen. Das Verbindungselement 16 kann auf entsprechende Weise in seiner Sacklochbohrung durch einseitiges Verstemmen gesichert werden.The securing
Prinzipiell ist auch eine weitere Abwandlung denkbar, in der fĆ¼r eines der Verbindungselemente 15, 16 eine beidseitige Verstemmung, wie in
Ferner stellt die Ausgestaltung mit einem Sackloch 26' beziehungsweise der Bohrung 26 als Sacklochbohrung 26 gegebenenfalls auch bei den anderen AusfĆ¼hrungsbeispielen eine mƶgliche Abwandlung dar.Furthermore, the embodiment with a blind hole 26 'or the
Somit kann der benƶtigte Bauraum je nach Ausgestaltung auf den AuĆenquerschnitt 28 beschrƤnkt werden oder zumindest nur geringfĆ¼gig grƶĆer als der AuĆenquerschnitt 28 der Tasse 2 sein. Somit ergeben sich optimierte Bedingungen fĆ¼r eine Ausnutzung des zur VerfĆ¼gung stehenden Platzes im Motorraum eines Kraftfahrzeugs oder dergleichen.Thus, the space required depending on the design can be limited to the
Die Brennstoffeinspritzanlage 1 weist einen Tank 51 und eine Hochdruckpumpe 52 auf. Hierbei kann gegebenenfalls auch eine Vorfƶrderpumpe vorgesehen sein. AuĆerdem ist ein Druckbegrenzungsventil 53 vorgesehen, um den Druck des in den Grundkƶrper 50 gefƶrderten Brennstoffs zu begrenzen.The
Die Brennstoffeinspritzventile 5, 5A, 5B sind Ć¼ber sich entsprechende Verbindungseinrichtungen 6, 6A, 6B mit den Tassen 2, 2A, 2B der Komponente 3 verbunden.The
In diesem AusfĆ¼hrungsbeispiel weist die Verbindungseinrichtung 6 eine Kunststoffummantelung 17 auf, die das Sicherungselement 17 bildet. Durch die Kunststoffummantelung 17 werden die Verbindungselemente 15, 16, deren Ausgestaltung und Anordnung in entsprechender Weise anhand der
Die Erfindung ist nicht auf die beschriebenen AusfĆ¼hrungsbeispiele beschrƤnkt.The invention is not limited to the described embodiments.
Claims (10)
- Fuel injection system having a connecting device (6) for connecting a fuel injection valve (5) to a cup (2) of a fuel-conducting component (3), wherein at least one connecting element (15, 16) is provided, and wherein, in the installed state, the connecting element (15, 16) is inserted into the cup (2) such that the connecting element (15, 16) is arranged at least approximately in a plane (24) which is oriented perpendicular to a longitudinal axis (7) of the cup (2), wherein the connecting element (15, 16) is formed as a pin-like connecting element (15, 16), and in that the connecting element (15, 16) is formed such that the connecting element (15, 16) is inserted into the cup (2) within an outer cross section (28) of the cup (2),
characterized
in that the connecting elements (15, 16) are two pins (15, 16) which are independent of one another and which are inserted through bores (26) in the cup (2) such that, in the installed state, they do no not project beyond an outer side (23) of the cup (2) and are captively secured. - Connecting device according to Claim 1,
characterized
in that there is provided a securing element (17) which serves for securing the at least one connecting element (15, 16) when the at least one connecting element (15, 16) is inserted into the cup (2) within the outer cross section (28) of the cup (2), and in that the securing element (17) is able to be arranged on the cup (2). - Connecting device according to Claim 2,
characterized
in that the securing element (17) for securing the at least one connecting element (15, 16) is able to be arranged on the cup (2) within the outer cross section (28) of the cup (2). - Connecting device according to Claim 2 or 3,
characterized
in that the securing element (17) is formed as an at least sectionally ring-shaped securing element (17). - Connecting device according to one of Claims 2 to 4,
characterized
in that the securing element (17) has a circular cross section (18) or a rectangular cross section (18). - Connecting device according to one of Claims 1 to 5,
characterized
in that, for the purpose of securing the connecting element (15, 16) in the installed state, the at least one connecting element (15, 16) is able to be connected to the cup (2) and/or to the fuel injection valve (5) at at least one predefined adhesive-bonding point (35-38). - Connecting device according to one of Claims 1 to 6,
characterized
in that the connecting element (15, 16) is formed such that, for the purpose of securing the connecting element (15, 16) in the installed state, a form fit (47) is able to be produced between the connecting element (15, 16) and the fuel injection valve (5). - Connecting device according to one of Claims 1 to 7,
characterized
in that, in the installed state, the at least one connecting element (15, 16) is able to be secured by at least one caulking (40, 41) on the cup (2). - Connecting device according to one of Claims 1 to 8,
characterized
in that, in the installed state, the at least one connecting element (15, 16) is able to be secured by an at least partially formed plastic encapsulation (17) of the cup (2). - Fuel injection system (1), in particular for mixture-compressing, spark-ignition internal combustion engines, having a component (3) which conducts at least fuel and which has at least one cup (2, 2A, 2B), having at least one fuel injection valve (5, 5A, 5B) and having at least one connecting device (6, 6A, 6B) according to one of Claims 1 to 9, wherein the fuel injection valve (5, 5A, 5B) is connected to the cup (2, 2A, 2B) of the fuel-conducting component (3) via the connecting device (6, 6A, 6B).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL14805802T PL3094856T3 (en) | 2014-01-15 | 2014-11-21 | Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014200581.7A DE102014200581A1 (en) | 2014-01-15 | 2014-01-15 | Fuel injection system with a fuel-carrying component, a fuel injection valve and a connecting device |
PCT/EP2014/075253 WO2015106862A1 (en) | 2014-01-15 | 2014-11-21 | Fuel injection system with a fuel-conducting component, a fuel injection valve, and a connection device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3094856A1 EP3094856A1 (en) | 2016-11-23 |
EP3094856B1 true EP3094856B1 (en) | 2019-02-27 |
Family
ID=52002901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14805802.7A Active EP3094856B1 (en) | 2014-01-15 | 2014-11-21 | Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element |
Country Status (7)
Country | Link |
---|---|
US (1) | US9816472B2 (en) |
EP (1) | EP3094856B1 (en) |
KR (1) | KR102250932B1 (en) |
CN (1) | CN105917110B (en) |
DE (1) | DE102014200581A1 (en) |
PL (1) | PL3094856T3 (en) |
WO (1) | WO2015106862A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9567961B2 (en) | 2015-03-16 | 2017-02-14 | Delphi Technologies, Inc. | Arrangement for retaining a fuel injector to a fuel rail socket |
US9957938B2 (en) * | 2015-11-18 | 2018-05-01 | Denso International America, Inc. | Fuel injector device having pin retainer |
WO2018007188A1 (en) * | 2016-07-05 | 2018-01-11 | Robert Bosch Gmbh | Fuel injector retention arrangement |
EP3301295B1 (en) * | 2016-09-29 | 2020-11-18 | Vitesco Technologies GmbH | A fuel injection assembly for an internal combustion engine |
DE102017220328A1 (en) * | 2017-11-15 | 2019-05-16 | Robert Bosch Gmbh | Vibration damping arrangement for injection systems of motor vehicles, in particular for fuel injection systems, and injection system with such a vibration damping arrangement |
US11105305B2 (en) * | 2019-04-22 | 2021-08-31 | Hitachi Astemo Americas, Inc. | Fuel injector cup with flow restriction passage |
DE102020208768A1 (en) * | 2020-07-14 | 2022-01-20 | Robert Bosch Gesellschaft mit beschrƤnkter Haftung | Fuel distributor strip for an injection system and injection system for mixture-compressing, spark-ignited internal combustion engines |
US11692521B2 (en) * | 2021-09-08 | 2023-07-04 | Robert Bosch Gmbh | Fitting connection assembly for a fluid delivery system |
US11525428B1 (en) | 2021-12-06 | 2022-12-13 | Robert Bosch Gmbh | Retaining clip and connection assembly including same |
WO2023232363A1 (en) * | 2022-06-03 | 2023-12-07 | Robert Bosch Gmbh | A fuel rail and a simple method for preparation of the same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2826038A1 (en) | 1978-06-14 | 1979-12-20 | Bosch Gmbh Robert | FUEL INJECTOR |
DE4413914A1 (en) | 1994-04-21 | 1995-10-26 | Bosch Gmbh Robert | Fuel injector |
DE19725076A1 (en) * | 1997-06-13 | 1998-12-17 | Bosch Gmbh Robert | Fuel injection system |
DE10006658B4 (en) * | 2000-02-15 | 2004-08-26 | Siemens Ag | injection |
DE102006003040A1 (en) * | 2006-01-23 | 2007-07-26 | Robert Bosch Gmbh | fuel injector |
EP2083167B1 (en) * | 2008-01-23 | 2017-05-10 | Continental Automotive GmbH | Coupling arrangement and connection assembly |
US7856962B2 (en) | 2009-06-02 | 2010-12-28 | Hitachi Automotive Products (Usa), Inc. | Fuel system for a direct injection internal combustion engine |
US8479710B2 (en) * | 2010-05-07 | 2013-07-09 | Continental Automotive Systems Us, Inc. | Injector to fuel rail coupling structure for high pressure direct injection engines |
DE102012206887A1 (en) * | 2012-04-26 | 2013-10-31 | Robert Bosch Gmbh | Arrangement with a fuel distributor and a plurality of fuel injection valves |
-
2014
- 2014-01-15 DE DE102014200581.7A patent/DE102014200581A1/en not_active Withdrawn
- 2014-11-21 KR KR1020167018999A patent/KR102250932B1/en active IP Right Grant
- 2014-11-21 EP EP14805802.7A patent/EP3094856B1/en active Active
- 2014-11-21 US US15/110,569 patent/US9816472B2/en active Active
- 2014-11-21 WO PCT/EP2014/075253 patent/WO2015106862A1/en active Application Filing
- 2014-11-21 PL PL14805802T patent/PL3094856T3/en unknown
- 2014-11-21 CN CN201480073331.6A patent/CN105917110B/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP3094856A1 (en) | 2016-11-23 |
DE102014200581A1 (en) | 2015-07-16 |
WO2015106862A1 (en) | 2015-07-23 |
US20160333836A1 (en) | 2016-11-17 |
CN105917110B (en) | 2019-11-29 |
PL3094856T3 (en) | 2019-08-30 |
CN105917110A (en) | 2016-08-31 |
KR102250932B1 (en) | 2021-05-12 |
KR20160107189A (en) | 2016-09-13 |
US9816472B2 (en) | 2017-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3094856B1 (en) | Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element | |
EP2841759B1 (en) | High pressure fuel injection arrangement | |
EP2946105B1 (en) | Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element | |
EP2948674B1 (en) | Fuel injection system comprising a fuel-guiding component, a fuel injection valve and a mounting | |
EP2961977B1 (en) | Apparatus to inject fuel in the combusion chamber of a combustion engine | |
DE102011013702A1 (en) | Electromagnetic actuator | |
DE19942855A1 (en) | High pressure fuel accumulator | |
EP1893867B1 (en) | High-pressure accumulator space body having high-pressure restrictors | |
DE102017219632A1 (en) | Metering valve for metering a fluid, which is used in particular for fuel injection systems, suspension for injection systems and injection system with such a metering valve | |
DE102014215472B4 (en) | Arrangement for connecting a fuel injection valve to a fuel-carrying component and fuel injection system | |
DE102013225840A1 (en) | Fuel injector | |
EP3141737B1 (en) | Valve for metering a fluid | |
DE102014200597A1 (en) | Fuel injection system with a fuel-carrying component, a fuel injection valve and a holder | |
EP2896815B1 (en) | Fuel injection system with a fuel conveying component, a fuel injector and a connection element | |
EP2855918B1 (en) | Device for metering fuel | |
EP1592880B1 (en) | Fuel injection device for an internal combustion engine | |
EP2896817B1 (en) | Fuel injection system with a fuel conveying component, a fuel injector valve and a connector | |
DE102013200922A1 (en) | Suspension apparatus for fuel injection system of internal combustion engine, has fuel injection valve with fuel nozzle that is supported on annular element and elastically deformable element along axis of receiving space of connector | |
DE102017223866A1 (en) | Valve for metering a fluid, in particular fuel injection valve | |
EP3485160B1 (en) | Fuel injection system and arrangement for a fuel injection system | |
DE102013200935A1 (en) | Connector for fuel injection system of combustion engine, has annular elements which are arranged axially spaced from each other and seal flow sections arranged axially between annular elements | |
DE102013019815A1 (en) | Plug element for electrically contacting an injection element and fastening arrangement of an injection element to a component of an internal combustion engine | |
DE102009046314A1 (en) | Piezoelectric actuator for injector of common rail fuel injection system of air diesel engine, has socket whose side is electrically connected with electrical inlet by plug connection or conductive contact fork in indirect manner | |
DE102017219630A1 (en) | Injection system, in particular fuel injection system, with a fluid-carrying component, a metering valve and a suspension | |
DE102014223062A1 (en) | Fuel injection system and fuel storage of a fuel injection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20160816 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20171115 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20181011 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1101711 Country of ref document: AT Kind code of ref document: T Effective date: 20190315 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014010979 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20190227 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190627 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190527 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190527 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190528 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190627 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502014010979 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20191128 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191130 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191130 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191121 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20191130 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20191121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191121 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191130 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1101711 Country of ref document: AT Kind code of ref document: T Effective date: 20191121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191121 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20201119 Year of fee payment: 7 Ref country code: IT Payment date: 20201130 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20201110 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20141121 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211121 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240123 Year of fee payment: 10 |