WO2004101986A9 - Brennstoffeinspritzventil - Google Patents
BrennstoffeinspritzventilInfo
- Publication number
- WO2004101986A9 WO2004101986A9 PCT/DE2004/000663 DE2004000663W WO2004101986A9 WO 2004101986 A9 WO2004101986 A9 WO 2004101986A9 DE 2004000663 W DE2004000663 W DE 2004000663W WO 2004101986 A9 WO2004101986 A9 WO 2004101986A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- fuel injection
- sleeve
- valve sleeve
- fuel
- Prior art date
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
- F02M61/1853—Orifice plates
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0667—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature acting as a valve or having a short valve body attached thereto
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
-
- 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
- F02M61/166—Selection of particular 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
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
Definitions
- the invention relates to a fuel injection valve according to the preamble of claim 1.
- Fuel injection valve having, inter alia, a valve housing, a arranged in a longitudinal opening of the valve housing valve seat body and attached to the valve seat body spray orifice plate.
- a gap disk with a small axial spacing is additionally arranged downstream of the spray perforated disk in the valve housing.
- the spray perforated disk and the slit disk may additionally be provided another capillary disk made of plastic or rubber with star-shaped recesses.
- another capillary disk made of plastic or rubber with star-shaped recesses.
- at least one further disk is required to build up the capillary action.
- the fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage that it is inexpensive to produce in a particularly simple manner. According to the invention can be completely dispensed with prior to all known solutions to a component, since additional slit discs, capillary discs or caps with capillary action are not required. In this respect, the assembly effort is reduced because of non-vorier connection techniques of the now superfluous component, which can be dispensed in an advantageous manner cohesive joining process. Thus, eliminates all the disadvantages of under heat to be carried out processes, such as welding distortion. The assembly of the valve is also simplified in that no tools for attaching the component in this sensitive Abspritz Scheme must attack.
- the thin-walled, elongated valve sleeve which represents the valve body itself, with its bottom section, already guarantees a correspondingly desired capillary action on the fuel through the recess formed between itself and the plane of the at least one spray opening.
- the thin-walled valve sleeve serves as a valve seat carrier and thereby fulfills holding, carrier or receiving functions.
- the capillary action function is also taken over by the valve sleeve.
- the valve sleeve has at its one axial end a perpendicular to the axial extent of the valve sleeve extending bottom portion, through which the stability of the valve sleeve is increased. To volume and weight reduction contributes above all things that the sleeve extends over more than half the axial length of the fuel injector.
- valve sleeve by sheet metal forming, since this method is simple and inexpensive and still the required accuracy is achieved.
- FIG. 1 shows a fuel injection valve in an embodiment of the invention
- Figure 2 is a bottom view of a second embodiment variant of the bottom portion of the valve sleeve.
- the electromagnetically actuated valve in the form of an injection valve for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines exemplified in FIG. 1 has a largely tubular core 2 surrounded by a magnetic coil 1, serving as inner pole and partly as fuel flow.
- the magnetic coil 1 is of an outer , sleeve-shaped and stepped running, z.
- the magnetic coil 1, the core 2 and the valve shell 5 together form an electrically excitable actuator.
- solenoid coil 1 surrounds a valve sleeve 6 from the outside, the core 2 in an inner, concentric with a valve longitudinal axis 10 extending opening 11 of the valve sleeve 6 is introduced.
- the example ferritic valve sleeve 6 is elongated and designed thin-walled and has a skirt portion 12 and a bottom portion 13, wherein the skirt portion 12 in the circumferential direction and the bottom portion 13 in the axial direction at its downstream end, the opening 11 limit.
- the opening 11 also serves as a guide opening for a valve needle 14 that is axially movable along the valve longitudinal axis 10.
- the valve sleeve 6 extends in the axial direction over more than half the total axial extent of the fuel injection valve.
- valve seat body 15 is further arranged in the opening 11, which is spaced from the bottom portion 13 of the valve sleeve 6 on the shell portion 12 of the valve sleeve 6, for. is fastened by means of a weld 8.
- the valve seat body 15 has a fixed valve seat surface 16 as a valve seat.
- the valve needle 14 is formed for example by a tubular anchor portion 17, a likewise tubular needle portion 18 and a spherical valve closure member 19, wherein the
- Valve closure body 19 e.g. is firmly connected to the needle portion 18 by means of a weld.
- a e.g. cup-shaped spray orifice plate 21 is arranged, the bent and circumferentially encircling retaining edge 20 is directed against the flow direction upwards.
- the solid connection of the valve seat body 15 and spray disk 21 is z. B. realized by a circumferential tight weld.
- one or more transverse openings 22 are provided, so that the armature portion 17 in an inner longitudinal bore 23 fuel passing outwards and on the valve closing body 19, for. can flow along flats 24 to the valve seat surface 16 along.
- the actuation of the injection valve takes place in a known manner electromagnetically.
- one of the valve needle 14 acting on the return spring 25 and closing the injector is the electromagnetic circuit with the solenoid 1, the inner core 2, the outer valve shell 5 and the anchor portion 17.
- the anchor portion 17 is facing away from the valve closing body 19 on the end of the core 2 aligned.
- the spherical valve closing body 19 cooperates with the valve seat surface 16 of the valve seat body 15, which tapers in the direction of the flow in the direction of flow and which is formed in the axial direction downstream of a guide opening in the valve seat body 15.
- the spray perforated disc 21 has at least one, for example, four ejection openings 27 formed by erosion, laser drilling or punching.
- the insertion depth of the core 2 in the injection valve is crucial for the stroke of the valve needle 14.
- the one end position of the valve needle 14 is fixed when the solenoid coil 1 is not energized by the abutment of the valve closing body 19 on the valve seat surface 16 of the valve seat body 15, while the other End position of the valve needle 14 results in energized solenoid coil 1 by the system of the anchor portion 17 at the downstream end of the core.
- the stroke is adjusted by an axial displacement of the core 2, for example, produced by a machining process such as turning, which is subsequently connected firmly to the valve sleeve 6 according to the desired position.
- an adjustment in the form of an adjusting sleeve 29 is inserted.
- the adjusting sleeve 29 is used to adjust the spring bias of the voltage applied to the adjusting sleeve 29 return spring 25, which in turn supported with its opposite side on the valve needle 14, wherein an adjustment of the dynamic Abspritzmenge with the adjusting sleeve 29 is carried out.
- a fuel filter 32 is disposed above the adjusting sleeve 29 in the valve sleeve 6.
- the injector described so far is characterized by its particularly compact design, so that a very small, handy injection valve is created.
- These components form a preassembled independent module, which is hereinafter referred to as ' functional part 30.
- the functional part 30 thus essentially comprises the electromagnetic circuit 1, 2, 5 and a sealing valve (valve closing body 19, valve seat body 15) with a subsequent jet treatment element (spray perforated disk 21) and as the base body, the valve sleeve. 6
- connection part 40 is characterized above all by the fact that it comprises the electrical and the hydraulic connection of the fuel injection valve.
- the largely executed as a plastic part connector 40 therefore has a serving as a fuel inlet nozzle tubular body 42.
- a concentric to the valve longitudinal axis 10 extending flow bore 43 of an inner tube 44 in the body 42 serves as a fuel inlet and is flowed through from the inflow end of the fuel injection valve in the axial direction of the fuel ,
- a hydraulic connection of connecting part 40 and functional part 30 is achieved in the fully assembled fuel injection valve in that the flow holes 43 and 28 of both modules are brought to each other so that an unimpeded flow through the fuel is ensured.
- the main body 42 made of plastic can be sprayed onto the functional part 30 so that the plastic immediately surrounds parts of the valve sleeve 6 and of the valve jacket 5.
- a secure seal between the functional part 30 and the main body 42 of the connecting part 40 is achieved, for example, via a labyrinth seal 46 on the circumference of the valve jacket 5.
- To the base body 42 includes a mitangespritzter electrical connector 56. At its opposite end of the connector 56, the contact elements with the solenoid coil 1 are electrically connected.
- the valve sleeve 6 is configured in such a way and spaced from the injection openings 27 with its bottom section 13 that a recess 60 with a small axial extent is formed, which exerts a capillary action on the fuel leaving the at least one injection opening 27, so that after closing the fuel injection valve may be at the at least one ejection opening 27 existing fuel in the recess 60 is pulled radially outward and left by evaporation remaining deposits only in the recess 60.
- a central passage opening 61 is provided in the bottom portion 13 of the valve sleeve 6, which has a diameter such that the emerging from the ejection openings 27 fuel can be hosed down unhindered and thus does not collide at the bottom portion 13.
- the valve sleeve 6 present as Blechmonyeil serves, as already mentioned, due to its large extent for receiving the valve seat body 15, the spray disk 21, the valve needle 14 with the armature 17, the return spring 25 and the core 2 and takes over in addition to their support and support function as Basic body of the entire fuel injection valve according to the invention also the capillary action function described above.
- the valve sleeve 6 is characterized by a particularly high functional integration. Due to the design of the valve sleeve 6 with a bottom portion 13, the assembly of the valve components takes place within the valve sleeve 6 according to the so-called ballpoint pen principle, ie exclusively from the upstream side of the valve sleeve 6 ago.
- Figure 2 shows a bottom view of a second embodiment of the bottom portion 13 of the valve sleeve 6.
- the bottom portion 13 of the valve sleeve 6 starting from the circular in the first example through hole 61 four radially extending slots 62.
- the bottom portion 13 of the valve sleeve 6 is formed segmented.
- four slots 62 spaced apart from each other at an angle of 90 ° extend in the bottom section 13; however, more or fewer than four slots 62 may be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA05011031A MXPA05011031A (es) | 2003-05-12 | 2004-03-31 | Valvula de inyeccion para combustible. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10321148.9 | 2003-05-12 | ||
DE2003121148 DE10321148A1 (de) | 2003-05-12 | 2003-05-12 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004101986A1 WO2004101986A1 (de) | 2004-11-25 |
WO2004101986A9 true WO2004101986A9 (de) | 2006-01-12 |
Family
ID=33394471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/000663 WO2004101986A1 (de) | 2003-05-12 | 2004-03-31 | Brennstoffeinspritzventil |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1791745A (de) |
DE (1) | DE10321148A1 (de) |
MX (1) | MXPA05011031A (de) |
WO (1) | WO2004101986A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101581265B (zh) * | 2005-04-18 | 2011-07-20 | 株式会社电装 | 燃料喷射阀 |
DE102005019837A1 (de) * | 2005-04-28 | 2006-11-02 | Robert Bosch Gmbh | Brennstoffeinspritzventil und Verfahren zu dessen Montage |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927390A1 (de) * | 1989-08-19 | 1991-02-21 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
DE19522284B4 (de) * | 1995-06-20 | 2007-05-10 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
US6264112B1 (en) * | 1999-05-26 | 2001-07-24 | Delphi Technologies, Inc. | Engine fuel injector |
DE10142974B4 (de) * | 2001-09-01 | 2010-04-29 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
-
2003
- 2003-05-12 DE DE2003121148 patent/DE10321148A1/de not_active Withdrawn
-
2004
- 2004-03-31 CN CN 200480013170 patent/CN1791745A/zh active Pending
- 2004-03-31 MX MXPA05011031A patent/MXPA05011031A/es not_active Application Discontinuation
- 2004-03-31 WO PCT/DE2004/000663 patent/WO2004101986A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN1791745A (zh) | 2006-06-21 |
WO2004101986A1 (de) | 2004-11-25 |
DE10321148A1 (de) | 2004-12-02 |
MXPA05011031A (es) | 2005-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0904488B1 (de) | Brennstoffeinspritzventil und verfahren zur herstellung einer ventilnadel eines brennstoffeinspritzventils | |
DE19547406B4 (de) | Brennstoffeinspritzventil | |
EP0774069B1 (de) | Brennstoffeinspritzventil für brennkraftmaschinen | |
EP0718491B1 (de) | Verfahren zur herstellung eines ventiles | |
EP1062421B1 (de) | Brennstoffeinspritzventil | |
WO2001011229A1 (de) | Brennstoffeinspritzventil und verfahren zur herstellung von austrittsöffnungen an ventilen | |
WO1998042976A1 (de) | Elektromagnetisch betätigbares ventil | |
WO1999013212A1 (de) | Elektromagnetisch betätigbares ventil | |
EP2212542B1 (de) | Elektromagnetisch betätigbares ventil | |
EP1062422B1 (de) | Verfahren zur montage einer ventilbaugruppe eines brennstoffeinspritzventils | |
EP1399669B1 (de) | Brennstoffeinspritzventil | |
WO2000079122A1 (de) | Brennstoffeinspritzventil | |
WO2000032926A1 (de) | Brennstoffeinspritzventil | |
EP1706634B1 (de) | Verfahren zur herstellung eines brennstoffeinspritzventils und brennstoffeinspritzventil | |
WO2004101986A9 (de) | Brennstoffeinspritzventil | |
EP1613857B1 (de) | Verfahren zur herstellung und befestigung einer lochscheibe | |
EP1195516B1 (de) | Brennstoffeinspritzventil | |
WO1998001665A1 (de) | Brennstoffeinspritzventil | |
EP0890732A2 (de) | Elektromagnetisch betätigbares Ventil | |
DE10321164A1 (de) | Brennstoffeinspritzventil | |
DE10314672B4 (de) | Verfahren zur Herstellung einer Lochscheibe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2005/011031 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2977/CHENP/2005 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20048131708 Country of ref document: CN |
|
COP | Corrected version of pamphlet |
Free format text: PAGE 1/1, DRAWINGS, REPLACED BY CORRECT PAGE 1/1 |
|
122 | Ep: pct application non-entry in european phase |