EP2593658A1 - Kraftstoffeinspritzventil mit reduzierter bauteileanzahl - Google Patents
Kraftstoffeinspritzventil mit reduzierter bauteileanzahlInfo
- Publication number
- EP2593658A1 EP2593658A1 EP11721475.9A EP11721475A EP2593658A1 EP 2593658 A1 EP2593658 A1 EP 2593658A1 EP 11721475 A EP11721475 A EP 11721475A EP 2593658 A1 EP2593658 A1 EP 2593658A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug
- fuel injection
- injection valve
- rib
- housing part
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
-
- 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
- F02M2200/8015—Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8023—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of quick-acting mechanisms, e.g. clips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8046—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
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
Definitions
- the present invention relates to an improved fuel injection valve which has a smaller number of components and a slimmer construction. Fuel injection valves are different from the prior art
- Fuel injection valves are the plug for the electrical connection of the valve and a housing surrounding the valve. Usually, the fuel injection valves are encapsulated after assembly, so as to produce the housing and optionally the plug. With the plug, however, are high
- an injection mold should be as short as possible during the injection process and an injection pressure should be as high as possible.
- an actuator of the fuel injection valve usually only a narrow annular space is ejected, in which case also a short filling time and a high injection pressure are advantageous.
- New engine concepts also require that the fuel injectors be made slimmer overall and longer in the axial direction to meet the installation requirements.
- the Kraftstoffeinspntzventile continue to be as simple as possible and inexpensive to produce.
- Claim 1 in contrast, has the advantage that a molded-on housing part can be sprayed quickly and with not excessive pressure. Furthermore, according to the invention, a very slender and elongated fuel injection valve can be provided and the number of components can be reduced. Furthermore, a plug for an electrical connection of the fuel injection valve has a very high dimensional accuracy. This is inventively achieved in that the fuel injection valve comprises an actuator with electrical contact elements, a plug, a fuel supply pipe and a molded housing part.
- the plug comprises a base body, an electrical connection element, e.g. a bus bar, for an electrical connection to the electrical contact elements of the actuator and a projecting from the base body rib.
- the molded housing part surrounds the electrical connection element of the plug and is molded onto the rib of the plug and the fuel supply pipe.
- the rib of the plug is at least partially, preferably completely, surrounded by the housing part.
- the electrical connection element protrudes from the plug and is then after assembly by molding the
- the molded housing part connected to the remaining components of the fuel injection valve.
- the molded housing part can be optimally designed to the necessary requirements and an injection process of the
- the actuator of the fuel injection valve is preferably a solenoid actuator with a coil on which the electrical contact elements such as a solenoid are mounted. Contact pins or Maisfinnen are arranged. It should be noted that according to the invention a plug can be understood to mean both a protruding plug element and a plug receptacle.
- the electrical connection element of the plug contacts the
- a guided out of the plug portion of the electrical connection element is at least four times as long as a in
- the electrical connection element of the plug comprises at least one support element, which supports the electrical connection element on the fuel supply pipe.
- the support element is preferably a clip. Depending on a length of the electrical connection element and a plurality of support elements can be provided.
- a labyrinth is preferably provided between the plug and the molded housing part.
- several protruding elements are provided on the plug, which by the molded
- the rib of the plug at least a first mold element which is surrounded by the molded housing part to a toothing between the
- the first mold element is preferably a protruding element or a recess or an element with an undercut.
- a shape of the protruding element or the recess can be chosen arbitrarily.
- the protruding element is hemispherical or oval-shaped or trapezoidal or with otherwise inclined surfaces or convex protruding or concave protruding.
- the projecting element can be provided only on one side of the rib or alternatively also on both sides of the rib.
- a recess may on the one hand be provided like a blind hole or be formed as a passage opening.
- the shape of the Recess can also be chosen arbitrarily, in particular trapezoidal, concave, as a cylindrical bore, as a slot, above, be formed. It should be noted that any number of protruding elements and / or recesses and any combinations are possible.
- the rib of the plug comprises a second molded part, which is not surrounded by the molded housing part.
- the second molded part is arranged exposed on the rib and thus not encapsulated by the housing part. The second molding allows positioning of the plug in one
- the second molding allows a safe and easy positioning of the prepared in advance
- the connector with the electrical connection element in a first step can be made very inexpensively and with the necessary requirements for the plug.
- Connecting element of the plug to the contact elements of the actuator also allows a small number of components.
- Fuel injection valve is particularly preferably used in a gasoline injection.
- FIG. 1 is a schematic sectional view of a fuel injection valve according to a first embodiment of the invention
- Figure 2 is a perspective view of a plug of the first
- FIG. 3 shows a perspective view of a molded-on housing part
- FIG. 4 shows a side view of the fuel injection valve of FIG. 1,
- Figure 5 is a schematic cross-sectional view showing a
- FIG. 6 shows a schematic side view of a rib of a plug of the first exemplary embodiment
- FIGS. 7-9 show alternative embodiments of the invention
- Fuel injection valve 1 according to a first preferred embodiment of the invention described in detail.
- the fuel injection valve 1 of the first exemplary embodiment comprises a fuel supply pipe 2 with a connection piece 10 arranged thereon for the supply of fuel. Further, the fuel injection valve 1 includes a solenoid actuator 3 having a coil 4, an armature 40 and a pole core 41. The armature 40 is connected to a needle 42 which, upon activation of the magnetic actuator 3, releases injection ports to inject fuel. On the coil 4, a contact element 5 is further arranged for an electrical contact.
- the fuel injection valve is an inwardly opening valve.
- the fuel injection valve 1 further comprises a plug 6, via which a vehicle-side, electrical contact takes place.
- the plug 6 is shown in detail in Figures 2 and 6.
- the plug 6 comprises a base body 60 with a rib 61 projecting thereon.
- the rib 61 protrudes on an underside of the base body 60 and has a flat, substantially rectangular shape.
- first shaped elements in the form of projecting elements 62, 63, 65 and in the form of a recess 64, which is a continuous one, are provided on the rib 61
- second mold elements 20, 21 are provided on the rib 61, which serve for positioning the plug 6 in an injection-molded tool for producing a molded-on housing part 9.
- two parts 24, 25 of an injection mold with inserted plug and inlaid fuel supply pipe 2 are shown. In the finished
- the plug 6 comprises, in addition to the elongate, electrical connecting element 7 in the form of two busbars, a supporting element 8.
- the supporting element 8 serves to position the plug 6 on the fuel supply tube 2, wherein two clips 80 on the supporting element 8, 81 are provided.
- the plug 6 can be easily clipped onto the fuel supply pipe 2 and is thus securely fixed for a subsequent injection process of the housing part 9.
- the injection molded surrounds
- Housing part 9 not all components of the fuel injection valve.
- the rib 61 of the plug 6 is only partially enclosed.
- the rib is
- Fuel injection valve is ensured. As already indicated in the previous description, is used to manufacture the
- the base body 60 and the rib 61 of the plug 6 can already be molded onto the electrical connection element 7 in a first injection molding step. This can be exactly the same for the connector
- Plug with high dimensional accuracy is obtained.
- the support member 8 can be molded.
- the fuel injection valve is then preassembled, with the plug assembly being clipped onto the fuel supply pipe 2 by means of the clips 80, 81.
- the first and second injection molds 24, 25 are arranged around the pre-assembled fuel injection valve, which means
- FIG. 5 can be seen.
- the arrow A indicates that the injection mold 25 still has to be moved toward the other injection mold 24 in the direction of the arrow in order to obtain the final injection state.
- the molding of the housing part 9 can then take place.
- Injection molding in particular in the field of Magnetaktors be set. Since the electrical connection elements 7 are very long, direct contact with the contact elements 5 of the coil 4 can be made possible.
- the fuel injection valve 1 according to the invention thus has a narrow and elongated structure, without the need for an excessively large number of components is necessary.
- Figures 7 to 9 are preferred alternatives of the fuel injection valve
- Embodiment in turn, a distance 12 is present, but the rib 61 is formed differently.
- the two projecting elements 62, 65 are arranged on both sides of the rib 61 in this embodiment.
- FIG. 9 shows a preferred one
- Embodiment in which on the rib 61, two holding portions 67, 68 are arranged, which partially surround the fuel supply pipe 2.
- the holding elements 67, 68 are resilient, so that the rib can be plugged over the fuel supply pipe 2.
- the rib 61 in turn rests on the fuel supply pipe 2.
- the first mold elements can be arranged only on one side of the rib 61 and on both sides of the rib 61.
- Recesses are, these can be blind hole-like or be formed as a continuous recesses.
- the second mold elements 20, 24 these are preferably provided on both sides of the rib 61. However, it is also possible that only on one side of the rib, a form element is present. It should also be noted that each of a plurality of form elements can be arranged on one side or both sides of the rib 61.
- an arrangement of the form elements on both sides of the rib 61 may be symmetrical or asymmetrical.
- a fuel injection valve 1 can be produced in a higher quality, wherein the fuel injection valve 1 in particular has a narrow and slender shape. Also occur less damage to components during spraying of the housing member 9, so that less exclusion is obtained in the production.
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010031277A DE102010031277A1 (de) | 2010-07-13 | 2010-07-13 | Kraftstoffeinspritzventil mit reduzierter Bauteileanzahl |
| PCT/EP2011/057780 WO2012007201A1 (de) | 2010-07-13 | 2011-05-13 | Kraftstoffeinspritzventil mit reduzierter bauteileanzahl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2593658A1 true EP2593658A1 (de) | 2013-05-22 |
| EP2593658B1 EP2593658B1 (de) | 2018-02-28 |
Family
ID=44303328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11721475.9A Active EP2593658B1 (de) | 2010-07-13 | 2011-05-13 | Kraftstoffeinspritzventil mit reduzierter bauteileanzahl |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9759172B2 (de) |
| EP (1) | EP2593658B1 (de) |
| JP (1) | JP5490308B2 (de) |
| CN (1) | CN103154494B (de) |
| DE (1) | DE102010031277A1 (de) |
| WO (1) | WO2012007201A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012204920A1 (de) * | 2012-03-27 | 2013-10-02 | Robert Bosch Gmbh | Versteiftes Kraftstoffeinspritzventil |
| DE102012211230A1 (de) * | 2012-06-29 | 2014-01-02 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| KR101691739B1 (ko) * | 2015-06-26 | 2016-12-30 | 주식회사 현대케피코 | 차량용 인젝터 |
| DE102016116777A1 (de) | 2016-09-07 | 2018-03-08 | Kendrion (Villingen) Gmbh | Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors |
| GB2555404B (en) * | 2016-10-24 | 2019-04-17 | Delphi Tech Ip Ltd | Positioning feature of a stator assembly of a fuel injector |
| DE102016225896A1 (de) * | 2016-12-21 | 2018-06-21 | Robert Bosch Gmbh | Injektor, Spritzgießwerkzeug sowie Verfahren zur Herstellung eines Injektors |
| DE102017212971A1 (de) | 2017-07-27 | 2019-01-31 | Robert Bosch Gmbh | Montageelement, Montagesatz, Verfahren zum Montieren und Bauteil |
| DE102017214980A1 (de) * | 2017-08-28 | 2019-02-28 | Robert Bosch Gmbh | Einspritzventilanordnung |
| GB2602649B (en) * | 2021-01-07 | 2023-01-04 | Delphi Automotive Systems Lux | Fuel injector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1293433B1 (it) * | 1997-07-11 | 1999-03-01 | Elasis Sistema Ricerca Fiat | Valvola di dosaggio registrabile per un iniettore di combustibile per motori a combustione interna, e relativo metodo di registrazione. |
| DE10108464A1 (de) | 2001-02-22 | 2002-09-05 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| JP2004293313A (ja) * | 2003-03-25 | 2004-10-21 | Hitachi Unisia Automotive Ltd | 燃料噴射弁 |
| JP3955055B2 (ja) | 2004-09-27 | 2007-08-08 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
| DE102004058677A1 (de) | 2004-12-06 | 2006-06-14 | Robert Bosch Gmbh | Einspritzventil |
| JP4897728B2 (ja) | 2008-03-18 | 2012-03-14 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
-
2010
- 2010-07-13 DE DE102010031277A patent/DE102010031277A1/de not_active Withdrawn
-
2011
- 2011-05-13 JP JP2013503143A patent/JP5490308B2/ja not_active Expired - Fee Related
- 2011-05-13 US US13/809,133 patent/US9759172B2/en not_active Expired - Fee Related
- 2011-05-13 WO PCT/EP2011/057780 patent/WO2012007201A1/de not_active Ceased
- 2011-05-13 EP EP11721475.9A patent/EP2593658B1/de active Active
- 2011-05-13 CN CN201180034789.7A patent/CN103154494B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012007201A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013524088A (ja) | 2013-06-17 |
| EP2593658B1 (de) | 2018-02-28 |
| US20130186986A1 (en) | 2013-07-25 |
| CN103154494A (zh) | 2013-06-12 |
| JP5490308B2 (ja) | 2014-05-14 |
| DE102010031277A1 (de) | 2012-01-19 |
| US9759172B2 (en) | 2017-09-12 |
| CN103154494B (zh) | 2016-04-27 |
| WO2012007201A1 (de) | 2012-01-19 |
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