EP3094856B1 - Brennstoffeinspritzanlage mit einer brennstoff führenden komponente, einem brennstoffeinspritzventil und einer verbindungseinrichtung - Google Patents

Brennstoffeinspritzanlage mit einer brennstoff führenden komponente, einem brennstoffeinspritzventil und einer verbindungseinrichtung Download PDF

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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
Application number
EP14805802.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3094856A1 (de
Inventor
Klaus Lang
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 PL14805802T priority Critical patent/PL3094856T3/pl
Publication of EP3094856A1 publication Critical patent/EP3094856A1/de
Application granted granted Critical
Publication of EP3094856B1 publication Critical patent/EP3094856B1/de
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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
    • 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 F02M39/00 - 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
    • 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 ° 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.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP14805802.7A 2014-01-15 2014-11-21 Brennstoffeinspritzanlage mit einer brennstoff führenden komponente, einem brennstoffeinspritzventil und einer verbindungseinrichtung Active EP3094856B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14805802T PL3094856T3 (pl) 2014-01-15 2014-11-21 Układ wtrysku paliwa z częścią składową doprowadzającą paliwo, wtryskiwaczem paliwa i urządzeniem łączącym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014200581.7A DE102014200581A1 (de) 2014-01-15 2014-01-15 Brennstoffeinspritzanlage mit einer Brennstoff führenden Komponente, einem Brennstoffeinspritzventil und einer Verbindungseinrichtung
PCT/EP2014/075253 WO2015106862A1 (de) 2014-01-15 2014-11-21 Brennstoffeinspritzanlage mit einer brennstoff führenden komponente, einem brennstoffeinspritzventil und einer verbindungseinrichtung

Publications (2)

Publication Number Publication Date
EP3094856A1 EP3094856A1 (de) 2016-11-23
EP3094856B1 true EP3094856B1 (de) 2019-02-27

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EP14805802.7A Active EP3094856B1 (de) 2014-01-15 2014-11-21 Brennstoffeinspritzanlage mit einer brennstoff führenden komponente, einem brennstoffeinspritzventil und einer verbindungseinrichtung

Country Status (7)

Country Link
US (1) US9816472B2 (ko)
EP (1) EP3094856B1 (ko)
KR (1) KR102250932B1 (ko)
CN (1) CN105917110B (ko)
DE (1) DE102014200581A1 (ko)
PL (1) PL3094856T3 (ko)
WO (1) WO2015106862A1 (ko)

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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 (de) * 2017-11-15 2019-05-16 Robert Bosch Gmbh Schwingungsdämpfungsanordnung für Einspritzanlagen von Kraftfahrzeugen, insbesondere für Brennstoffeinspritzsysteme, und Einspritzanlage mit solch einer Schwingungsdämpfungsanordnung
US11105305B2 (en) * 2019-04-22 2021-08-31 Hitachi Astemo Americas, Inc. Fuel injector cup with flow restriction passage
DE102020208768A1 (de) * 2020-07-14 2022-01-20 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffverteilerleiste für eine Einspritzanlage und Einspritzanlage für gemischverdichtende, fremdgezündete Brennkraftmaschinen
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
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US20160333836A1 (en) 2016-11-17
DE102014200581A1 (de) 2015-07-16
KR102250932B1 (ko) 2021-05-12
CN105917110A (zh) 2016-08-31
KR20160107189A (ko) 2016-09-13
WO2015106862A1 (de) 2015-07-23
PL3094856T3 (pl) 2019-08-30
EP3094856A1 (de) 2016-11-23
CN105917110B (zh) 2019-11-29
US9816472B2 (en) 2017-11-14

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