EP3636912A1 - Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene - Google Patents
Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene Download PDFInfo
- Publication number
- EP3636912A1 EP3636912A1 EP18199032.6A EP18199032A EP3636912A1 EP 3636912 A1 EP3636912 A1 EP 3636912A1 EP 18199032 A EP18199032 A EP 18199032A EP 3636912 A1 EP3636912 A1 EP 3636912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- fuel rail
- combustion engine
- internal combustion
- rail
- 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.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 162
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 238000010146 3D printing Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005728 strengthening Methods 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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
-
- 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
- F02M2200/85—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
- F02M2200/9053—Metals
-
- 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
Definitions
- the present disclosure relates to a fuel rail for a fuel injection system for an internal combustion engine and particularly but not exclusively to a fuel rail for incorporation in a fuel injection system for a multicylinder direct injection internal combustion engine.
- a fuel rail commonly comprises an elongate reservoir for fuel in which the fuel is supplied to a fuel inlet by a high-pressure fuel pump.
- the fuel rail has spaced along its length fuel outlets for supplying fuel to a fuel injector for injecting fuel directly into each cylinder of the engine.
- the volume of fuel in the fuel rail is intended to damp out fluctuations in the pressure of the fuel supplied by the pump so that the pressure at each outlet is equal and substantially constant. Further components, such as the fuel outlet ports and mounting brackets are secured to the generally tubular element by brazing.
- the fuel rail is typically a substantial generally tubular element which has to be strong enough to cope with the stresses of the load applied to the fuel rail by the high pressure of fuel in the reservoir and also to cope with the additional operating stresses caused by the harsh environment in a vehicle caused by vibration of the engine and the high temperatures to which the fuel rail is subjected.
- the fuel rail tends to be heavy and costly to construct because of the amount of material used in its construction.
- the present disclosure seeks to provide a fuel rail which overcomes or mitigates the disadvantages of the known fuel rails.
- a fuel rail for a fuel injection system for an internal combustion engine comprising an elongate generally tubular body forming a fuel reservoir and having formed integrally therewith one or more of a fuel inlet and one or more fuel outlets and one or more mounting brackets.
- the fuel inlet and/or one or more fuel outlets and/or one or more mounting brackets are integrally formed with the elongate body forming the fuel reservoir of the fuel rail and form a single component.
- This structure avoids joints, such as brazed joints, between the elongate body and additional elements of the fuel rail such as the fuel inlet, the fuel outlets and the mounting brackets and complexities associated with manufacturing the fuel rail form several parts. For example if forging technologies are used, at least two components are required since a shaft is used during the forging process to create the internal volume of the fuel rail. The hole for the shaft insertion then has to be closed or plugged with an additional element.
- the fuel rail including the additional integrally formed functional components can be fabricated using additive manufacturing techniques.
- the fuel inlet and the fuel outlets may each have the form of a port comprising a passageway.
- the integrally formed inlet may be provided in the form of an inlet fitting or inlet port including an interface part, for example a outer screw thread, which is adapted to be connected to the high-pressure pipe through which the fuel is introduced into the fuel rail, a part with a small diameter hole or orifice, which may have a diameter and/or length selected to reduce pressure oscillation in the fuel and a structural part which has a mechanical robustness function.
- the structural part can be formed by the transition to the elongate tube of the fuel rail and may have a variable thickness which is dimensioned to minimise the stress distribution with the use of the minimum amount of material. For example, the transitional region downstream of the orifice may have an increased wall thickness to provide additional mechanical robustness.
- a fuel rail is, therefore, provided as a single component which includes two or more, or all of the functional parts integrated into the single component.
- This fuel rail may be fabricated using additive manufacturing, for example.
- the design and position of the functional parts as well as the number of occurrences in the design, for example, the number of outlets and mounting brackets, can also be different depending on the application.
- the use of additive manufacturing allows shapes to be produced which are difficult or expensive to produce with traditional technologies.
- the parameters which can be optimised include the internal shape and internal volume, the external shape and interfaces for connections, such as the position and shape of the mounting brackets, outlets and inlet. These parameters can also be different depending on the engine environment and the application.
- the thickness, in particular the wall thickness of the single component is variable and may be varied by varying the internal and/or external profile. The variation in the thickness as well as the absolute thickness can also be optimized depending on the application by increasing the thickness at regions where the stress on the fuel rail is higher and by decreasing the wall thickness at regions of the fuel rail which are subjected to less stress.
- the fuel inlet has formed integrally therewith a screw thread adapted to receive a high-pressure fuel supply connection.
- the inlet port comprises an orifice through which fuel is supplied to the fuel reservoir in the tubular body.
- the orifice may be an elongate passage and may have a non-uniform cross-section along its length. The dimension of the orifice may be selected to dampen pressure fluctuations in the fuel passing through the orifice.
- a plurality of fuel outlets is spaced along the fuel rail, in particular, spaced along the tubular body, and integrally formed in the fuel rail.
- the outlets may each have the form of an outlet port having a passageway.
- the outlets may each incorporate a fuel injector cup adapted to receive a fuel injector.
- a plurality of said mounting brackets are spaced along the tubular body and being formed integrally with the tubular body.
- the tubular body has a non-uniform wall thickness, the wall thickness being increased at high stress points such as near the inlet and in the region of the outlets and the mounting brackets.
- the wall thickness is increased in a region downstream of the fuel inlet, for example in the transition between the fuel inlet port and the tubular body and/or in a transition region between the outlet and the tubular body and/or in a transition region between the mounting bracket and the tubular body.
- the fuel rail may have formed integrally therewith a further outlet for a sensor and/or an end closure at the end of the tubular body opposite the fuel inlet.
- the further outlet for the sensor may have the form of a sensor port.
- the fuel rail according to any of the embodiments described herein may be formed by an additive manufacturing technology. Additive manufacturing techniques may be used to build up the fuel rail layer by layer.
- the elongate body and additional functional elements, such as the fuel inlet, fuel outlet(s) and mounting bracket(s) may be built up layer by layer using 3D (Three-dimensional) printing or Powder Bed Fusion or Directed Energy Deposition.
- the fuel rail may be built up layer by layer by movement of the metal jet print head, laser or electron beam controlled according to a three dimensional model of the fuel rail.
- the fuel rail may be formed of a synthetic plastics material or a metal such as stainless steel or other alloy.
- a fuel rail 2 which consists of an elongated generally tubular body 4 which has a fuel inlet 6 at one end.
- the fuel inlet 6 may have the form of a port or fitting.
- the tubular body 4 is closed by an end closure in the form of a blanking plug 8.
- Spaced along the tubular body 4 are a plurality of outlets 9 in the form of injector cups 10 each adapted to receive a fuel injector (not shown).
- injector cups 10 are shown, each being adapted to receive a fuel injector for direct fuel injection into the combustion chamber of a multicylinder internal combustion engine.
- the fuel rail 2 is not limited to included four outlets 9 and injector cups 10, but may have fewer or more than four outlets 9 and injector cups 10.
- the tubular body 4 also includes four mounting brackets 12 by which the fuel rail can be secured to the engine.
- Tubular body 4 also incorporates a sensor port 14 for receiving a sensor (not shown) through which the fuel in the tubular body is monitored.
- the tubular body 4, the fuel inlet 6, blanking plug 8, the injector cups 10, mounting brackets 12 and the sensor port 14 are all formed integrally as a single component by means of an additive manufacturing technology.
- fewer component may be integrated into a single component, for example the fuel inlet and the tubular body may be integrated and provided as a single component.
- the elements of the single component are formed of the same material, which may be a metal such as stainless steel.
- a metal such as stainless steel.
- alternative material for certain parts of the fuel rail may also be used in the additive manufacturing process.
- the single component may be moulded from a synthetic plastics material.
- the fuel inlet 6 has the form of an inlet fitting or port that includes an external screw thread by which a high-pressure pipe or connector can connect the fuel rail 2 to a high-pressure fuel pump (not shown) by which fuel is supplied to the fuel rail, and hence to the injector cups 10.
- the fuel inlet 6 has a fuel inlet orifice 16 having a generally frusto-conical inlet 18 through which fuel enters into a narrow passage 20 which has dimensions adapted to damp down oscillations in the fuel pressure.
- the oscillations in the fuel pressure may be caused by the characteristics of the high pressure fuel pump and/or parameters such as the volume of the high pressure tube, the volume of the fuel rail, the distribution of the volumes, etc.
- the wall thickness of the tubular body 4 is varied along its length in dependence upon the stress levels at particular parts such as the inlet smoothing passage 20, the outlet ports 9 in the region of the injector cups 10 and the mounting brackets 12.
- the wall thickness may be increased at a transition between two parts having different outer dimensions to provide additional strengthening to mitigate any additional stress to which the fuel rail 2 is subjected at this transitional region.
- the material used in the formation of the body is minimised since the wall thickness in the low stress areas can be kept relatively thin, the wall thickness only being increased in higher stress regions with the result that the overall stress levels throughout the fuel rail 2 can be kept relatively constant. This has the advantage that the fuel rail can be manufactured with less material and hence lower weight and cost.
- the thickness of the wall 22 of the tubular body 4 is increased in the region of the inlet 6 to accommodate stresses caused by the change in diameter between the inlet 6 and the tubular body 4 and/or turbulence of the fuel adjacent the inlet as the fuel expands from the smoothing passage 20 into the volume of the tubular body 4.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18199032.6A EP3636912A1 (de) | 2018-10-08 | 2018-10-08 | Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18199032.6A EP3636912A1 (de) | 2018-10-08 | 2018-10-08 | Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3636912A1 true EP3636912A1 (de) | 2020-04-15 |
Family
ID=63794345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18199032.6A Withdrawn EP3636912A1 (de) | 2018-10-08 | 2018-10-08 | Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP3636912A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020122503B3 (de) | 2020-08-28 | 2021-12-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftstoffeinspritzsystem zur Kraftstoff-Wasser-Einspritzung für eine Verbrennungskraftmaschine |
| WO2022113749A1 (ja) * | 2020-11-27 | 2022-06-02 | 三桜工業株式会社 | 燃料分配管 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004036028A1 (de) * | 2002-10-11 | 2004-04-29 | Siemens Aktiengesellschaft | Kraftstoffverteiler |
| EP2072802A1 (de) * | 2006-10-02 | 2009-06-24 | Bosch Corporation | Verteilerleitung und verfahren zur herstellung einer verteilerleitung |
| DE102010030286A1 (de) * | 2010-06-21 | 2011-12-22 | Walter Söhner GmbH & Co. KG | Verteiler für ein Einspritzsystem |
| DE202014104466U1 (de) * | 2014-09-19 | 2014-09-25 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
| US20170159627A1 (en) * | 2015-12-02 | 2017-06-08 | Benteler Automobiltechnik Gmbh | Fuel rail and method of making a fuel rail |
| EP3196457A1 (de) * | 2014-09-17 | 2017-07-26 | Hitachi Automotive Systems, Ltd. | Kraftstoffverteiler |
| DE102016209423A1 (de) * | 2016-05-31 | 2017-11-30 | Robert Bosch Gmbh | Hochdruckspeicher und Verfahren zur Herstellung eines Hochdruckspeichers |
| DE102016210391A1 (de) * | 2016-06-13 | 2017-12-14 | Hirschvogel Umformtechnik Gmbh | Druckbelastetes Bauteil sowie Verfahren zu dessen Herstellung |
| DE102017205691A1 (de) * | 2017-04-04 | 2018-10-04 | Robert Bosch Gmbh | Kraftstoff-Hochdruckspeicher |
-
2018
- 2018-10-08 EP EP18199032.6A patent/EP3636912A1/de not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004036028A1 (de) * | 2002-10-11 | 2004-04-29 | Siemens Aktiengesellschaft | Kraftstoffverteiler |
| EP2072802A1 (de) * | 2006-10-02 | 2009-06-24 | Bosch Corporation | Verteilerleitung und verfahren zur herstellung einer verteilerleitung |
| DE102010030286A1 (de) * | 2010-06-21 | 2011-12-22 | Walter Söhner GmbH & Co. KG | Verteiler für ein Einspritzsystem |
| EP3196457A1 (de) * | 2014-09-17 | 2017-07-26 | Hitachi Automotive Systems, Ltd. | Kraftstoffverteiler |
| DE202014104466U1 (de) * | 2014-09-19 | 2014-09-25 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
| US20170159627A1 (en) * | 2015-12-02 | 2017-06-08 | Benteler Automobiltechnik Gmbh | Fuel rail and method of making a fuel rail |
| DE102016209423A1 (de) * | 2016-05-31 | 2017-11-30 | Robert Bosch Gmbh | Hochdruckspeicher und Verfahren zur Herstellung eines Hochdruckspeichers |
| DE102016210391A1 (de) * | 2016-06-13 | 2017-12-14 | Hirschvogel Umformtechnik Gmbh | Druckbelastetes Bauteil sowie Verfahren zu dessen Herstellung |
| DE102017205691A1 (de) * | 2017-04-04 | 2018-10-04 | Robert Bosch Gmbh | Kraftstoff-Hochdruckspeicher |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020122503B3 (de) | 2020-08-28 | 2021-12-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftstoffeinspritzsystem zur Kraftstoff-Wasser-Einspritzung für eine Verbrennungskraftmaschine |
| WO2022113749A1 (ja) * | 2020-11-27 | 2022-06-02 | 三桜工業株式会社 | 燃料分配管 |
| US11988181B2 (en) | 2020-11-27 | 2024-05-21 | Sanoh Industrial Co., Ltd. | Fuel distribution pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6264221B2 (ja) | 燃料噴射ノズル | |
| US20200325866A1 (en) | High-pressure accumulator and method for producing a high-pressure accumulator | |
| EP3636912A1 (de) | Kraftstoffschiene für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene | |
| US20110215177A1 (en) | Injection nozzle | |
| CN102132030A (zh) | 喷嘴体、喷嘴部件和燃油喷射器以及用于生产喷嘴体的方法 | |
| RU2516064C2 (ru) | Управляющий вспрыскиванием клапанный элемент топливной форсунки | |
| CN104471236A (zh) | 燃料轨组件 | |
| KR20120101502A (ko) | 커플링 장치 | |
| JP2010222977A (ja) | 燃料噴射ノズル | |
| US7146700B1 (en) | Method of manufacturing a pressure damper for a fluid conduit | |
| KR101760656B1 (ko) | 커플링 장치 | |
| US9297343B2 (en) | Needle for needle valve | |
| EP3670895B1 (de) | Kraftstoffschienenanordnung für ein kraftstoffeinspritzsystem für einen verbrennungsmotor | |
| US8608093B2 (en) | Fuel injector having a high-pressure inlet | |
| Kilic et al. | Influence of nozzle parameters on single jet flow quantities of multi-hole diesel injection nozzles | |
| EP2363593B1 (de) | Kupplungsvorrichtung | |
| US20050166898A1 (en) | Fuel injection system and cylinder head with a central fuel reservoir | |
| EP3805547A1 (de) | Kkraftstoffeinspritzanordnung und verfahren zur herstellung einer kraftstoffzuteileranordnung | |
| EP3617492A1 (de) | Kraftstoffschiene für einen kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschiene | |
| WO2016208138A1 (ja) | 燃料噴射ノズル | |
| EP3653866B1 (de) | Kraftstoffschienenanordnung für ein kraftstoffeinspritzsystem für einen verbrennungsmotor und verfahren zur herstellung einer kraftstoffschienenanordnung | |
| EP3604787A1 (de) | Kraftstoffzuleiter für ein kraftstoffeinspritzsystem und verfahren zur herstellung solch eines kraftstoffzuteilers | |
| JP2007071152A (ja) | 高圧燃料蓄圧器 | |
| US20230287856A1 (en) | Fuel distributor rail for an injection system and injection system for mixture-compressing, spark-ignition internal combustion engines | |
| JP6481597B2 (ja) | 燃料噴射制御装置、燃料噴射システム及び燃料噴射弁 |
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 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
| 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 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VITESCO TECHNOLOGIES GMBH |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20201015 |
|
| RBV | Designated contracting states (corrected) |
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 |
|
| 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: 20210128 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VITESCO TECHNOLOGIES GMBH |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20240312 |