EP1399668A1 - Fuel injection valve for internal combustion engines - Google Patents
Fuel injection valve for internal combustion enginesInfo
- Publication number
- EP1399668A1 EP1399668A1 EP02758052A EP02758052A EP1399668A1 EP 1399668 A1 EP1399668 A1 EP 1399668A1 EP 02758052 A EP02758052 A EP 02758052A EP 02758052 A EP02758052 A EP 02758052A EP 1399668 A1 EP1399668 A1 EP 1399668A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle body
- injector
- fuel injection
- injection valve
- 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.)
- Granted
Links
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 injection valves or injectors are important components of internal combustion engines. Fuel injectors are required for metered injection, preparation of the fuel, shaping the course of the injection and sealing against the combustion chamber.
- a fuel injector includes an injector that fits into a holding body, e.g. a nozzle holder is integrated.
- the injection nozzles can also be installed, for example in the case of the "Common Rail" accumulator injection system, in injectors which take over the function of the nozzle holder.
- the start of injection and the injection quantity are set with electrically controllable injectors.
- Nozzle holder combinations and injectors especially for perforated nozzles, have a large variety of variants.
- a nozzle with a nozzle holder is known.
- the injection nozzle is attached centrally to the nozzle holder using a nozzle clamping nut.
- a washer against the sealing surfaces of the nozzle holder and the body of the injector pressed overall.
- the intermediate disk 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 hole in the body of the nozzle holder and through a hole in the intermediate disk to an inlet hole in the nozzle body and then into the seat area of the injection nozzle.
- a tangential alignment of a nozzle body with respect to a holding body is carried out in order to arrange the spray jets of the fuel to be injected into the combustion chamber at a different angle to the glow plug depending on the type of internal combustion engine and thus to improve the injection conditions.
- the fixing pins in the intermediate disk which serve to align the injection nozzle relative to the nozzle holder or injector, have the disadvantage that blind holes are also required in the nozzle body to accommodate the fixing pins and that these blind holes reduce the vibration resistance of the nozzle body. This reduces the maximum load on a fuel injector due to vibration-induced material fatigue.
- An advantage of the present invention is that the vibration resistance of the nozzle body of a fuel injector is increased by eliminating the fixing pins and the associated blind holes.
- the elimination of the fixing pins also results in a reduction in costs and time in the manufacture of the nozzle holder combination.
- the accuracy of the fixing of the injection nozzle to the nozzle holder is increased by the present invention. The same benefits are achieved for injectors built into injectors.
- a fuel injection valve according to the invention for internal combustion engines with an injection nozzle clamped to a nozzle holder or an injector and comprising an injector body and an injector needle.
- the nozzle needle is axially displaceable in a bore in the nozzle body.
- the nozzle body contains at least one marking and can optionally contain a key surface for aligning the nozzle body relative to the holding body or an injector body.
- a marking or recess which is machine-readable identification of the position of the marking, for example via a camera system in the production / assembly line) can be arranged both in the upper region of the nozzle body and in its shaft region which extends to the combustion chamber.
- Alignment of the nozzle body to the holding body can be carried out using an assembly or clamping tool.
- a key surface attached to the nozzle body can be fitted into an assembly tool, as a result of which the nozzle body can be aligned in the correct position relative to the holding body.
- the marking provided on the nozzle body can also be visualized by means of an optical system. Detect in a clamping tool.
- the fixing pins used for fixing and aligning the holding body and nozzle body with respect to one another can be dispensed with, so that the operations for producing the fixing geometry, ie drilling the blind holes in the nozzle body and milling grooves or the like in the nozzle body and holding body, can also be omitted. This saves further measuring effort.
- processing steps such. B. like the deburring of sharp-edged fixing grooves that arise during milling, are now no longer required.
- a torque to be applied to generate a sealing force acting in the axial direction is superfluous.
- the nozzle clamping nut, with which the holding body and the nozzle body are connected to one another, is only “put on” after the axial preloading force has been applied by means of a clamping or assembly tool.
- There can also be errors in the assembly such as. B. exclude shearing of the locating pins due to excessive friction torque or failure to reach the required target torque for angle-controlled assembly.
- By avoiding fixing pins between the holding body and the nozzle body errors regarding the position and dimensional accuracy of the fixing geometry can also be avoided in the future. In the case of rotationally symmetrical nozzle bodies, any alignment in the future for carrying out measurement test procedures can be omitted.
- a constant surface pressure on the contact surfaces ie the sealing surface of the nozzle body and the end face of the holding body opposite this, is also favorable.
- a constant surface pressure becomes an essential qualitative deterioration of the sealing surfaces. Due to the introduction of the pretensioning force by means of a clamping or assembly tool, the nozzle clamping nut, which places the nozzle body against the holding body and maintains the sealing force, can be mechanically relieved, since it does not transmit any torque to one another during the pretensioning of holding bodies and nozzle bodies. This in turn has the consequence that an increase in the axial sealing force is possible with the solution proposed according to the invention, and an increase in the nozzle nozzle collar can be achieved. Furthermore the nozzle body collar is not subjected to any torsional stress; Furthermore, the solution proposed according to the invention prevents damage to the sealing surface due to an unwanted twisting.
- FIG. 1 shows a section through an injection nozzle according to the prior art with blind holes for the fixing pins
- FIGS. 2a, b show a schematic representation of nozzle bodies according to the invention with possible forms of the marking and
- FIG. 3 shows a schematic illustration of a nozzle body according to the invention with a key surface and an associated assembly tool
- FIG. 4 shows the representation of a nozzle body / holding body connection with an enlarged nozzle clamping nut bore
- FIG. 5 shows a holding body / nozzle body connection with a reduced shaft diameter on the nozzle body.
- 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 guided axially.
- the nozzle needle 3 has at its lower end a sealing cone 4, which is pressed onto the likewise conical sealing surface 5 of the nozzle body when the injection nozzle is closed.
- spray holes 6 which are supplied with fuel via an inlet bore 7 and a pressure chamber 8 when the injection nozzle is open.
- the upper sealing surface 9 of the injection nozzle is connected to a nozzle holder or injector (not shown).
- the injection nozzle is used for this a (also not shown) nozzle clamping nut 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 aligning and fixing the nozzle body 1 relative to the nozzle holder or injector are eliminated, which increases the vibration resistance of the nozzle body 1, among other things.
- FIG. 2a shows a schematic illustration of nozzle bodies according to the invention with possible forms of marking.
- the marking is a recess in the outer wall of the nozzle body.
- Six possible variants of this embodiment are shown with a 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 of which is not shown.
- the upper sealing surface 19 of the nozzle body 17 does not have the pin holes used in the prior art.
- the nozzle body 17 contains a marking rank in the form of a recess 20 in this outer wall.
- the nozzle body 17 has a clear marking, with the aid of which the nozzle body 17 can be aligned so that it is in the correct position after clamping on a nozzle holder or injector. It is assumed that the recess 20 has been made in a precisely known position relative to the inner 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 bores in the nozzle body 17 and in the nozzle holder or injector (or in an intermediate disk integrated in the nozzle holder or injector) are brought into exact alignment and that the nozzle body 17 is centered on the body of the nozzle holder or injector.
- the accuracy of the fixation is increased with the same tolerances by using the recess 20 instead of pin holes.
- the accuracy of fixing is greater, the smaller the maximum angle of rotation of the nozzle body relative to the nozzle holder or injector after the two components have been brought together. that were attached.
- the reason for an increase in 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 twist angle has an effect than the same inaccuracy in the position of a fixing hole which is closer to the axis of rotation of the nozzle body 17.
- Figure 2b shows an embodiment of the recess 20 with a triangular cross-section.
- the present invention relates to a method for aligning the nozzle body 17 with at least one marking 20 relative to the nozzle holder or injector when assembling a fuel injection valve according to the invention.
- the nozzle holder or injector should already be aligned in a certain position.
- the process according to the invention comprises the following process steps:
- the predefined position of the marking 20 is predefined in such a way that the nozzle body 17 is exactly aligned after the clamping on the nozzle holder or injector.
- the depth of the marking 20 must be selected so that there is a contrast to the remaining nozzle body 17, which can be detected by an optical medium (eye, camera) used to optically detect the position of the at least one marking 20.
- the positions of the at least one marking 20 are preferably optically recorded with the aid of a camera, images captured by the camera being forwarded to an image processing program which determines the current position of the at least one marking.
- the automation of the assembly of fuel injection valves according to the invention can also be achieved in that the rotation of the nozzle body 17 about its axis of symmetry takes place automatically when the current position of the at least one marking determined by the image processing program deviates from the predetermined position.
- This automatic rotation can be carried out, for example, by means of a robot arm or a turntable on which the nozzle body 17 is located.
- FIG. 3 shows a schematic illustration 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 an assembly tool 22 is shown on the left-hand side of the figure and a view of the same parts from the outside on the right-hand side. Furthermore, the clamping nut 23 is shown on both sides, which serves to fix the nozzle body 24 of the injection nozzle 21 centrally in the (not shown nozzle holder or injector). On the nozzle body 24 there is a key surface 25, which causes the nozzle body 24 to fit into the assembly tool 22 in a form-fitting manner only in a certain position. The key surface 25 is preferably located on the outside of the nozzle body 24.
- the pin holes which are used in the prior art for aligning and fixing the nozzle body 24 are not present in the sealing surface 26 of the nozzle body 24 in the present invention.
- the key surface 24 is a straight surface which interrupts the curved outer surface of the nozzle body 24.
- the key surface 24 can have any other shape that fits in a form-fitting manner in an associated assembly tool 22. It is located at a specific position of the nozzle body 24.
- the present invention relates to a method for aligning the nozzle body with at least one key surface 25 relative to the nozzle holder or injector when mounting a fuel injection valve according to the invention.
- the nozzle holder or injector and the assembly tool 22 are aligned in a certain position.
- the process according to the invention comprises the following process steps: ⁇ ) placing the Düsenlcö ⁇ ers 24 on the assembly tool 22;
- the orientation of the nozzle holder or injector and the assembly tool 22 is chosen so that the nozzle body 24 is precisely aligned after tightening with the clamping nut 23 on the nozzle holder or injector (or on the washer integrated in the nozzle holder or injector).
- a further advantage of the fuel injection valve according to the invention is that an internal leakage or pressure infiltration of the pin holes is not possible due to the omission of the pin holes. This unfavorable case, on the other hand, cannot be safely ruled out in the prior art and increases the stresses in the nozzle body 1 considerably (by approximately 25%, which can result in premature material fatigue). These disadvantages in the prior art are advantageously avoided by the present invention. Furthermore, the omission of the pin holes in the fuel injection valve according to the invention results in a cost advantage, since 4 holes and 2 pins can be saved.
- FIG. 4 shows a holding body / nozzle body connection by means of a nozzle clamping nut with an enlarged bore.
- the nozzle body 1 shown in FIG. 4 comprises a bore 2 into which the nozzle needle 3 is slidably received. At the lower end of the nozzle needle, this has a sealing cone 4, which interacts with a chronic sealing surface 5 of the nozzle body 1.
- injection openings are opened or closed in the combustion chamber (not shown here) of 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 enclosed by a nozzle clamping nut 23, as a result of which the sealing surface 9 is pressed against a corresponding end surface 31 of a holding body 30.
- the cutout or marking 20 shown in FIGS. 2a) to 2f) is located in the upper region of the nozzle body 17 identified there with reference number 17. 4 in the lower region of a shaft 37 of the nozzle body 1.
- the shaft 37 of the nozzle body 1 which is designed 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 an area 38 which is thickened in terms of its diameter.
- the nozzle clamping nut 23 comprises a ring-shaped release 34, into which the upper part of the clamping tool 42 projects and supports the nozzle body 1 on a shoulder 44.
- the biasing force acting in the axial direction is introduced into the nozzle body 1 via the shoulder 44, with which the nozzle body 1 is pressed against the end face 31 of the holding body 30.
- the nozzle clamping nut 23 is installed, which does not transmit any torque during its assembly, but only maintains it by means of the pretensioning force applied when the desired tightening torque is reached, so that the sealing surface 9 is in sealing contact with the nozzle body 1 facing end face 31 of the holding body 30 is reached.
- the first diameter of the nozzle clamping nut 23, with which it surrounds the clamping tool 42 is identified by reference number 35.
- the mark 20 in the lower region of the shaft 37 is preferably applied during the injection hole production and can, for. B. be procured as an eroding or Lase ⁇ unkt, which allows the clear assignment of the spray holes to the inlet bore.
- This marking 20 is machine-readable and can, for. B. can be identified via a camera system, an optical system or with the naked eye.
- the marking 20 can be attached at any circumferential location on the circumference of the shaft 37, so that alignment of the nozzle body 1 is unnecessary.
- the angular alignment of the nozzle body 1 to the holding body 30 takes place by inserting or twisting it into an angle-oriented and angle-centered clamping tool 42 relative to the holding body 30.
- the correct position of the nozzle body 1 in the holding body 30 is recognized by scanning the marking 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 assembly of holding body 30, which contains a further inlet bore 33 connected to the inlet bore 7 of the nozzle body 1, is carried out by applying an appropriate axial force which brings about a good sealing effect. This is introduced into the composite of holding body 30 and nozzle body, the nozzle body 1 being supported on a collar on the shoulder 44 of the clamping tool 42.
- the nozzle clamping nut 23 enclosing the nozzle body 1 comprises a release 34 which is generated by a corresponding design of the first diameter 35 of the nozzle clamping nut 23.
- the nozzle clamping nut 23 is then screwed up to the stop around the connection between the holding body 30 and the nozzle body 1 that is braced, whereby this does not transmit any torque, but is only loaded by a relatively low thread friction torque.
- the threaded clamping nut 23 maintains the axial preload and causes the end face 31 of the holding body 30 to bear against the sealing surface 9 of the nozzle body 1.
- the clamping tool 42 is then pulled out of the release 43 in the lower region of the nozzle clamping nut 23.
- annular groove 32 can be formed on the holding body 30 in order to derive the prestressing force acting in the axial direction as early as possible from the injection valve.
- a hold-down device can engage in the annular groove 32, which extends in an annular manner on the holding body 30 and via which the force can be conducted out.
- FIG. 5 shows a holding body / nozzle body connection with which the nozzle body 1 has a reduced shaft diameter.
- the release 34 is formed in the lower region of the nozzle clamping 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. 5.
- 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 clamping nut 23 is also made smaller, which results in an abutment of the shoulder 44 of the clamping tool 42 on the nozzle body and the nozzle body 1, which lies more in the pressure chamber 8.
- the nozzle clamping nut 23 is screwed onto an external thread formed on the holding body 30 and only has to overcome a small thread friction torque. After fastening, ie pretensioning to a required minimum torque, the nozzle clamping nut 23 takes over the maintenance of the pretensioning force acting in the axial direction and holds the end face 31 and the sealing surface 9 in sealing contact with one another.
- the clamping tool 42 can then be removed from the release 34 of the nozzle clamping nut 23.
- a clamping ring or the like can be inserted in the release 34 for the clamping tool 42, or a unique tool head can be inserted in order to limit a gas damage volume that is too large during the tool release.
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)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10128763 | 2001-06-13 | ||
DE10128763 | 2001-06-13 | ||
DE10224241A DE10224241A1 (en) | 2001-06-13 | 2002-05-29 | Fuel injection valve for internal combustion engines |
DE10224241 | 2002-05-29 | ||
PCT/DE2002/002116 WO2002101229A1 (en) | 2001-06-13 | 2002-06-12 | Fuel injection valve for internal combustion engines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1399668A1 true EP1399668A1 (en) | 2004-03-24 |
EP1399668B1 EP1399668B1 (en) | 2006-11-08 |
Family
ID=26009522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02758052A Expired - Lifetime EP1399668B1 (en) | 2001-06-13 | 2002-06-12 | Fuel injection valve for internal combustion engines |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1399668B1 (en) |
JP (1) | JP2004521244A (en) |
BR (1) | BR0205538A (en) |
DE (1) | DE50208654D1 (en) |
WO (1) | WO2002101229A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU193251U1 (en) * | 2019-07-11 | 2019-10-21 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | FUEL BURNER |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008034128A1 (en) | 2008-07-22 | 2010-01-28 | Continental Automotive Gmbh | Method for aligning nozzle body relative to injection valve body of internal combustion engine, involves rotating and aligning nozzle body relative to valve body such that nozzle body has target position relative to reference position |
DE102012203621A1 (en) * | 2012-03-07 | 2013-09-12 | Man Diesel & Turbo Se | fuel injector |
DE102020208277A1 (en) | 2020-07-02 | 2022-01-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method of assembling a fuel injector and fuel injector |
DE102020209636A1 (en) | 2020-07-30 | 2022-02-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method of assembling a fuel injector and tool for use in this method |
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 (en) | 1995-03-10 | 1996-09-12 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
GB9725805D0 (en) * | 1997-12-06 | 1998-02-04 | Lucas Ind Plc | Fuel injector nozzle |
-
2002
- 2002-06-12 WO PCT/DE2002/002116 patent/WO2002101229A1/en active IP Right Grant
- 2002-06-12 DE DE50208654T patent/DE50208654D1/en not_active Expired - Lifetime
- 2002-06-12 EP EP02758052A patent/EP1399668B1/en not_active Expired - Lifetime
- 2002-06-12 BR BR0205538-4A patent/BR0205538A/en active Pending
- 2002-06-12 JP JP2003503959A patent/JP2004521244A/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO02101229A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU193251U1 (en) * | 2019-07-11 | 2019-10-21 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | FUEL BURNER |
Also Published As
Publication number | Publication date |
---|---|
EP1399668B1 (en) | 2006-11-08 |
JP2004521244A (en) | 2004-07-15 |
DE50208654D1 (en) | 2006-12-21 |
WO2002101229A1 (en) | 2002-12-19 |
BR0205538A (en) | 2003-07-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69735451T2 (en) | A threaded cylinder fuel injector for mounting a fuel injector on an internal combustion engine | |
EP3271136B1 (en) | Sonotrode for an ultrasound welding system and method for welding a connection element to a component | |
DE2920100A1 (en) | FUEL INJECTION NOZZLE WITH CONTROLLED INJECTION CROSS SECTION FOR INTERNAL COMBUSTION ENGINES | |
DE4006028C2 (en) | Connecting bolts and arrangement of components | |
WO2003071644A1 (en) | Prechamber spark plug and a method for producing the same | |
EP1527276B1 (en) | Fuel-injection valve for internal combustion engines | |
DE10020867A1 (en) | Common-rail injector has nozzle needle end facing valve piston protruding into guide sleeve accommodating end of valve piston facing nozzle needle or pressure rod driven by valve piston | |
EP0116864A2 (en) | Fuel injection nozzle for internal-combustion engines | |
DE10224241A1 (en) | Fuel injection valve for internal combustion engines | |
EP1775460B1 (en) | Fuel injection valve | |
EP2636911A1 (en) | Mounting assembly | |
EP2256335A1 (en) | Method for adjusting valve lift | |
DE10133218C2 (en) | Method and device for adjusting the magnetic stroke on fuel injectors | |
DE69911191T2 (en) | METHOD FOR COAXIAL CONNECTING PRECISION PARTS CONSISTING OF A VARIETY OF PARTS, METHOD FOR ASSEMBLING FUEL INJECTION NOZZLES AND FUEL INJECTION NOZZLE | |
EP1399668B1 (en) | Fuel injection valve for internal combustion engines | |
AT510318A1 (en) | CENTERING DEVICE FOR A FUEL INJECTION NOZZLE | |
DE10256667A1 (en) | Fuel injector | |
EP1373714A1 (en) | Injection valve | |
DE10037571A1 (en) | Fuel injector and method for adjusting it | |
EP1599670B1 (en) | Blind hole and seat hole injection nozzle for an internal combustion engine, comprising a transition cone between the blind hole and the nozzle needle seat | |
DE3344723A1 (en) | ADJUSTMENT DEVICE FOR SETTING THE INITIAL INJECTION STROKE OF A DOUBLE INJECTION TYPE VALVE | |
WO2002086309A1 (en) | Fuel-injection valve for internal combustion engines | |
DE10257896A1 (en) | Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel | |
DE10114216B4 (en) | Yield limit controlled screw connection | |
DE3919503A1 (en) | METHOD FOR ALIGNED FASTENING A COUNTERWEIGHT TO A CRANKSHAFT, AND TOOL FOR CARRYING OUT THE METHOD |
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: 20040113 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20040528 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50208654 Country of ref document: DE Date of ref document: 20061221 Kind code of ref document: P |
|
ET | Fr: translation filed | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20061108 |
|
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: 20070809 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB 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: 20061108 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20110630 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20110627 Year of fee payment: 10 |
|
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: 20120612 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20130228 |
|
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: 20120702 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170809 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50208654 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190101 |