EP1399668B1 - Kraftstoffeinspritzventil für brennkraftmaschinen - Google Patents
Kraftstoffeinspritzventil für brennkraftmaschinen Download PDFInfo
- Publication number
- EP1399668B1 EP1399668B1 EP02758052A EP02758052A EP1399668B1 EP 1399668 B1 EP1399668 B1 EP 1399668B1 EP 02758052 A EP02758052 A EP 02758052A EP 02758052 A EP02758052 A EP 02758052A EP 1399668 B1 EP1399668 B1 EP 1399668B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle body
- injector
- holder
- marking
- 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.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims abstract description 42
- 239000007924 injection Substances 0.000 title claims abstract description 42
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 32
- 239000000243 solution Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003550 marker Substances 0.000 description 6
- 208000012886 Vertigo Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000003313 weakening 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
- 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/852—Mounting of fuel injection apparatus provisions for mounting the fuel injection apparatus in a certain orientation, e.g. markings or notches
Definitions
- Fuel injectors or injectors are important components of internal combustion engines. Fuel injectors are needed for metered injection, conditioning of fuel, shaping of injection history and sealing against the combustion chamber.
- a fuel injector includes an injector which is inserted into a holder body, e.g. a nozzle holder, is integrated.
- the injection nozzles can also, for example in the accumulator injection system "common rail", be installed in injectors which take over the function of the nozzle holders. With electrically controllable injectors, start of injection and injection quantity are set.
- Nozzle holder combinations and injectors especially for hole nozzles, have a large variety of variants.
- a nozzle with nozzle holder is known.
- the injection nozzle is attached centrally to the nozzle holder with a nozzle retaining nut.
- an intermediate disk is pressed against the sealing surfaces of the nozzle holder and of the body of the injection nozzle.
- the intermediate disc forms the stroke stop of the nozzle needle of the injection nozzle and also serves to align the injection nozzle relative to the body of the nozzle holder by means of fixing pins.
- the fuel passes through an inlet bore in the body of the nozzle holder and a bore in the washer to an inlet bore of the nozzle body and then into the seating area of the injector.
- a tangential alignment of a nozzle body is made to a holding body to arrange the spray jets of injected into the combustion chamber fuel in a different depending on the type of internal combustion engine angle to the glow plug and thus to improve the injection conditions.
- the fixing pins in the intermediate disc which serve to align the injection nozzle relative to the nozzle holder or injector, have the disadvantage that in the nozzle body blind holes are required to accommodate the fixing pins and that these blind holes reduce the fatigue strength of the nozzle body. This reduces the maximum load on a fuel injector due to vibration induced fatigue.
- EP 0 672 826 B1 relates to a fuel injector for supplying fuel to a diesel engine having a stepped cylindrical nozzle body in which a fuel pressure operated valve member is disposed and having a cylindrical nozzle holder to which the nozzle body is fixed, the nozzle holder having a fuel inlet passage; which communicates with a fuel inlet and a fuel delivery passage in the nozzle body.
- the fuel injector includes a shoulder engaging collar, wherein the step is defined between a further and a narrower portion of the nozzle body and a clamp for securing the collar to the nozzle holder for holding the nozzle body relative to the nozzle holder, wherein the nozzle body with a recess which extends from the step to the nozzle holder.
- the nozzle holder is provided with a complementary recess adjacent to the recess in the nozzle body, wherein the clamp is arranged in the recesses.
- EP 0 921 304 B1 relates to a nozzle with a nozzle holder and a nozzle tip, wherein the nozzle tip is provided with at least one outlet opening. Further, at the top is a structure which provides an indication of the angular positions of the apertures.
- the tip includes an area that is a frictional connection in the nozzle holder to form a substantially liquid-tight seal between the nozzle holder and the tip.
- the nozzle holder and the Tip are engaged by a screw thread with each other and are attached to each other.
- a method of manufacturing such a nozzle includes the step of aligning the structure with a portion of the nozzle holder.
- An advantage of the present invention is that the fatigue strength of the nozzle body of a fuel injection valve increases, thereby eliminating the fixing pins and associated blind holes. The elimination of the fixing pins further results in a reduction of costs and time required in the production of the nozzle holder combination. Further, the present invention increases the accuracy of the fixation of the injection nozzle to the nozzle holder. The same advantages are achieved for injectors installed in injectors.
- an inventive fuel injection valve for internal combustion engines with a clamped to a nozzle holder or an injector injector comprising a nozzle body and a nozzle needle.
- the nozzle needle is axially displaceable in a bore in the nozzle body.
- the nozzle body contains at least one marking and may optionally contain a key surface for alignment of the nozzle body relative to the holding body or an injector body.
- a marking or recess which is machine-readable can be arranged both in the upper area of the nozzle body and in its shaft area extending to the combustion chamber.
- An alignment of the nozzle body to the holding body can be carried out by means of an assembly or clamping tool.
- An attached to the nozzle body key surface can be fitted into an assembly tool, whereby the nozzle body is aligned in the correct position relative to the holding body.
- the marking provided on the nozzle body can also be achieved by means of an optical system through a viewing window Detect in a clamping tool.
- the inventive solution for fixing and alignment of the holding body and nozzle body serving each other fixing pins can be omitted, so that the operations for the production of Fixiergeometrie ie bore the blind holes in the nozzle body and milling grooves or the like in the nozzle body and holding body can also be omitted. As a result, further metrological effort can be saved. In addition, processing steps, such. B. as the deburring sharp-edged Fixiemuten that arise during milling, now accounts.
- a constant surface pressure on the bearing surfaces ie the sealing surface of the nozzle body and the opposite end face of the holding body.
- a constant surface pressure becomes a significant qualitative consumption of the sealing surfaces. Due to the initiation of the biasing force by means of clamping or assembly tool, the nozzle retaining nut, which adjusts the nozzle body against the holding body and maintains the sealing force, be relieved of mechanical stress, since it does not transmit torque in the bias of holding bodies and nozzle bodies against each other. This in turn has the consequence that with the proposed solution according to the invention an increase in the axial sealing force is possible and an enlargement of the nozzle body collar can be achieved. Furthermore the nozzle body is subject to no torsional stress; Furthermore, can be avoided by the proposed solution according to the invention sealing surface damage due to unwanted twisting.
- FIG. 1 shows a section through an injection nozzle according to the prior art.
- the injection nozzle comprises a nozzle body 1 and a bore 2, in which the nozzle needle 3 is axially guided.
- the nozzle needle 3 carries at its lower end a sealing cone 4, which is pressed when the injection nozzle is closed on the likewise conical sealing surface 5 of the nozzle body.
- injection holes 6, which are supplied via an inlet bore 7 and a pressure chamber 8 with the injector open with fuel.
- the upper sealing surface 9 of the injection nozzle is connected to a (not shown) nozzle holder or injector.
- the injector is with it a nozzle retaining nut (also not shown) attached to the nozzle holder or injector.
- FIG. 1 shows such a pin hole 10 in the nozzle body 1.
- the pin hole 10 reduces the vibration resistance of the nozzle body 1.
- the pin holes 10 with the fixing pins for alignment and fixation of the nozzle body 1 fall away relative to the nozzle holder or injector, thereby increasing, inter alia, the vibration resistance of the nozzle body 1.
- Figure 2a shows a schematic representation of nozzle bodies according to the invention with possible forms of marking.
- the mark is a recess in the outer wall of the nozzle body.
- this embodiment shows six possible variants of this embodiment shown with recess.
- a section of a nozzle body is shown.
- the first variant 11 shows the section of a nozzle body 17 from the outside.
- the upper sealing surface 19 is connected to a nozzle holder or injector, not shown. Downstream 18, the nozzle body 17 tapers, the lower conical end is not shown.
- the upper sealing surface 19 of the nozzle body 17 does not have the pin holes used in the prior art. Instead, the nozzle body 17 in its outer wall erfmdungsloom according to a marking in the form of a recess 20.
- the nozzle body 17 has a unique mark, by means of which the nozzle body 17 can be aligned so that it after the Clamping to a nozzle holder or injector is in the correct position. It is assumed that the recess 20 has been mounted in a precisely known position relative to the internal structure of the nozzle body 17.
- the aim of the alignment of the nozzle body 17 relative to the nozzle holder or injector is that, for example, the inlet holes in the nozzle body 17 and the nozzle holder or injector (or in an integrated nozzle holder or injector washer) are brought exactly to coincidence and that the nozzle body 17th centered on the body of the nozzle holder or injector.
- the accuracy of the fixation is increased at constant tolerances by using the recess 20 instead of pin holes.
- the fixing accuracy is greater, the smaller the maximum angle of rotation of the nozzle body relative to the nozzle holder or injector, after the two components together were fastened.
- the reason for increasing the fixing accuracy in the present invention is that the recess 20 is located at a greater distance from the central axis of the nozzle body 17 than the fixing holes in the prior art. Therefore, an inaccuracy in the position of the recess 20 in the form of a smaller angle of rotation affects than the same inaccuracy in the position of a fixing hole, which is closer to the rotational axis of the nozzle body 17.
- FIG. 2b shows an embodiment of the recess 20 with a triangular cross-section.
- the predetermined position of the marker 20 is thereby set so that the nozzle body 17 is aligned exactly after clamping on the nozzle holder or injector.
- the depth of the mark 20 must be chosen in this method so that there is a contrast to the rest of the nozzle body 17, which is used by an optical medium used for the optical detection of the position of the at least one mark 20 (eye, camera). .) can be detected.
- the optical detection of the positions of the at least one marker 20 is carried out with the aid of a camera, wherein images captured by the camera are forwarded to an image processing program which determines the current position of the at least one marker.
- the optical detection of the position of the marker 20 can be automated and integrated into a machine production process.
- the automation of the assembly of fuel injection valves according to the invention can be further achieved in that the rotation of the nozzle body 17 about its axis of symmetry automatically occurs when the determined by the image processing program current position of the at least one mark deviates from the predetermined position. This automatic rotation can be performed, for example, by a robot arm or a turntable on which the nozzle body 17 is located.
- Figure 3 shows a schematic representation of a nozzle body according to the invention with a key surface and an associated assembly tool.
- a section through an injection nozzle 21 and a mounting tool 22 is shown and on the right side a view of the same parts from the outside. Further, on both sides of the clamping nut 23 is shown, which serves to fasten the nozzle body 24 of the injection nozzle 21 centrally in the (not shown nozzle holder or injector).
- a key surface 25 which causes the nozzle body 24 fits into a form-fitting manner in the mounting tool 22 only in a certain position.
- the key surface 25 is preferably located on the outside of the nozzle body 24.
- the pin holes that serve in the prior art for alignment and fixation of the nozzle body 24 are not present in the present invention in the sealing surface 26 of the nozzle body 24.
- the key surface 24 is in this case a straight surface which interrupts the curved lateral surface of the nozzle body 24.
- the key surface 24 may have any other shape that fits positively into an associated mounting tool 22. It is located at a specific position of the nozzle body 24.
- the orientation of the nozzle holder or injector and the mounting tool 22 is selected so that the nozzle body 24 is aligned exactly after clamping with the clamping nut 23 on the nozzle holder or injector (or on the integrated into the nozzle holder or injector washer).
- FIG. 4 shows a holding body / nozzle body connection by means of a nozzle retaining nut with an enlarged bore.
- the nozzle body 1 shown in Figure 4 comprises a bore 2, in which the nozzle needle 3 is slidably received. At the lower end of the nozzle needle, this has a sealing cone 4, which cooperates with a chronic sealing surface 5 of the nozzle body 1.
- injection openings are released or closed in the combustion chamber, not shown here a self-igniting internal combustion engine.
- the nozzle body 1 comprises an inlet bore 7, which opens into a pressure chamber 8, which surrounds the nozzle needle 3 in the region of a pressure stage.
- the nozzle body 1 is surrounded by a nozzle retaining nut 23, whereby the sealing surface 9 is pressed against a corresponding end face 31 of a holding body 30.
- the recess or marking 20 shown in FIGS. 2 a) to 2 f) in the upper region of the nozzle body 17 identified there by reference numeral 17 is located in accordance with FIG 4 in the lower region of a shaft 37 of the nozzle body 1.
- the shaft 37 of the nozzle body 1 formed in a second shaft diameter 41 is enclosed by a clamping tool 42 which has a viewing window 43 in the region of the marking 20.
- the shaft 37 is formed with a region 38 that is thickened in terms of its diameter.
- the nozzle retaining nut 23 comprises a ring-shaped release 34 into which the upper part of the clamping tool 42 protrudes and the nozzle body 1 is supported on a shoulder 44. Via the shoulder 44, the biasing force acting in the axial direction is introduced into the nozzle body 1, with which the nozzle body 1 is pressed against the end face 31 of the holding body 30. Once the required preload force is reached, the assembly of the nozzle lock nut 23, which transmits no torque during assembly, but only by the clamping tool 42 applied biasing force is maintained upon reaching the Sollanzugstapmomentes, so that a sealing contact of the sealing surface 9 to the nozzle body 1 assigning end face 31 of the holding body 30 is achieved.
- the first diameter of the nozzle retaining nut 23, with which it encloses the clamping tool 42 is identified by reference numeral 35.
- the marking 20 in the lower region of the shaft 37 is preferably mounted in the spray-hole production and can, for. B. be procured as an erosion or laser point, which allows the unique allocation of the injection holes for supply hole.
- This mark 20 is designed to be machine readable and z. B. be identified via a camera system, an optical system or with the naked eye.
- the marking 20 can be attached to any circumferential location on the circumference of the shaft 37, so that an alignment of the nozzle body 1 is unnecessary.
- the angular orientation of the nozzle body 1 to the holding body 30 by inserting or twisting takes place in a angular and angle-centered clamping tool 42 relative to the holding body 30.
- the proper position of the nozzle body 1 in the holding body 30 is detected by scanning the mark 20 on the shaft 37 of the nozzle body 1 through the viewing window 43, which is arranged in the wall of the clamping tool 42.
- the bracing of the composite of holding body 30, which contains a further inlet bore 33 communicating with the inlet bore 7 of the nozzle body 1, is effected by applying a corresponding axial force effecting a good sealing effect. This is introduced into the composite of holding body 30 and nozzle body wherein the nozzle body 1 is supported on a collar on the shoulder 44 of the clamping tool 42.
- the nozzle body 1 enclosing the nozzle lock nut 23 comprises a release 34, which is generated by a corresponding formation of the first diameter 35 of the nozzle lock nut 23.
- the nozzle lock nut 23 is then screwed to the stop, which transmits no torque, but is only burdened by a relatively low Gewindereibmoment.
- the threaded clamping nut 23 maintains the axial bias and causes a sealing abutment of the end face 31 of the holding body 30 on the sealing surface 9 of the nozzle body 1.
- annular groove 32 can be formed on the holding body 30 in order to discharge the pretensioning force acting in the axial direction as early as possible from the injection valve.
- ring-shaped on the holding body 30 extending annular groove 32, a hold-down engage, over which the force is divisible.
- FIG. 5 shows a holding body / nozzle body connection with, in which the nozzle body 1 has a reduced shaft diameter.
- the release 34 is formed in the lower region of the nozzle retaining nut 23 in a second diameter 36.
- the shaft 37 of the nozzle body 1 is designed in a second diameter 41 as shown in FIG.
- the clamping tool 42 surrounding the shaft 37 of the nozzle body 1 can also be formed in a smaller diameter. Due to the small diameter of the shaft 37, the second diameter 36 of the bore in the nozzle lock nut 23 is also formed smaller, resulting in an investment of the shoulder 44 of the clamping tool 42 on the nozzle body and the nozzle body 1, which is more on the pressure chamber 8.
- the nozzle lock nut 23 is screwed onto an external thread formed on the holding body 30 and only has to overcome a slight thread breaking moment. After attachment, ie bias to a required minimum torque, the nozzle retaining nut 23 takes over the maintenance of the acting in the axial direction biasing force and holds the end face 31 and the sealing surface 9 in sealing engagement with each other.
- a removal of the clamping tool 42 from the release 34 of the nozzle retaining nut 23 take place.
- optional can be inserted in the release 34 for the clamping tool 42, a clamping ring or the like, or a one-time tool head are inserted to limit a too large in the tool release gas damage volume.
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)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10128763 | 2001-06-13 | ||
| DE10128763 | 2001-06-13 | ||
| DE10224241A DE10224241A1 (de) | 2001-06-13 | 2002-05-29 | Kraftstoffeinspritzventil für Brennkraftmaschinen |
| DE10224241 | 2002-05-29 | ||
| PCT/DE2002/002116 WO2002101229A1 (de) | 2001-06-13 | 2002-06-12 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1399668A1 EP1399668A1 (de) | 2004-03-24 |
| EP1399668B1 true EP1399668B1 (de) | 2006-11-08 |
Family
ID=26009522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02758052A Expired - Lifetime EP1399668B1 (de) | 2001-06-13 | 2002-06-12 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1399668B1 (pt) |
| JP (1) | JP2004521244A (pt) |
| BR (1) | BR0205538A (pt) |
| DE (1) | DE50208654D1 (pt) |
| WO (1) | WO2002101229A1 (pt) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034128A1 (de) | 2008-07-22 | 2010-01-28 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Ausrichten eines Düsenkörpers |
| DE102020208277A1 (de) | 2020-07-02 | 2022-01-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Montage eines Kraftstoffinjektors und Kraftstoffinjektor |
| DE102020209636A1 (de) | 2020-07-30 | 2022-02-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Montage eines Kraftstoffinjektors und Werkzeug zur Verwendung in diesem Verfahren |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012203621A1 (de) * | 2012-03-07 | 2013-09-12 | Man Diesel & Turbo Se | Kraftstoffinjektor |
| RU193251U1 (ru) * | 2019-07-11 | 2019-10-21 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | Топливная форсунка |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB804116A (en) * | 1955-10-12 | 1958-11-05 | Cav Ltd | Liquid fuel injection nozzles for internal combustion engines |
| GB9404489D0 (en) * | 1994-03-09 | 1994-04-20 | Lucas Ind Plc | Fuel injection nozzle |
| DE19508636A1 (de) | 1995-03-10 | 1996-09-12 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
| GB9725805D0 (en) * | 1997-12-06 | 1998-02-04 | Lucas Ind Plc | Fuel injector nozzle |
-
2002
- 2002-06-12 DE DE50208654T patent/DE50208654D1/de not_active Expired - Lifetime
- 2002-06-12 BR BR0205538-4A patent/BR0205538A/pt active Pending
- 2002-06-12 WO PCT/DE2002/002116 patent/WO2002101229A1/de active IP Right Grant
- 2002-06-12 EP EP02758052A patent/EP1399668B1/de not_active Expired - Lifetime
- 2002-06-12 JP JP2003503959A patent/JP2004521244A/ja not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034128A1 (de) | 2008-07-22 | 2010-01-28 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Ausrichten eines Düsenkörpers |
| DE102020208277A1 (de) | 2020-07-02 | 2022-01-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Montage eines Kraftstoffinjektors und Kraftstoffinjektor |
| DE102020209636A1 (de) | 2020-07-30 | 2022-02-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Montage eines Kraftstoffinjektors und Werkzeug zur Verwendung in diesem Verfahren |
| WO2022022965A1 (de) | 2020-07-30 | 2022-02-03 | Robert Bosch Gmbh | Verfahren zur montage eines kraftstoffinjektors und werkzeug zur verwendung in diesem verfahren |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004521244A (ja) | 2004-07-15 |
| BR0205538A (pt) | 2003-07-22 |
| DE50208654D1 (de) | 2006-12-21 |
| EP1399668A1 (de) | 2004-03-24 |
| WO2002101229A1 (de) | 2002-12-19 |
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