EP2655854A1 - Ventil zum einspritzen von kraftstoff - Google Patents
Ventil zum einspritzen von kraftstoffInfo
- Publication number
- EP2655854A1 EP2655854A1 EP11779181.4A EP11779181A EP2655854A1 EP 2655854 A1 EP2655854 A1 EP 2655854A1 EP 11779181 A EP11779181 A EP 11779181A EP 2655854 A1 EP2655854 A1 EP 2655854A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- valve
- damping
- valve according
- stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F02M51/06—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
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- 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
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
-
- 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
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means
Definitions
- the present invention relates to a valve for injecting fuel with a simplified and less expensive construction.
- Valves for injecting fuel are known from the prior art in various configurations.
- the armature is made of a soft magnetic material in solenoid valves, which can be produced, for example, as a turned part.
- the anchor is coated with chrome.
- the valve according to the invention for injecting fuel with the features of claim 1 has the advantage over the other hand, that an improved damping of an impact pulse of an armature on a stop is possible. Furthermore, according to the invention, a noise transmission can also be damped become. Also results in addition to a significant cost reduction by eliminating a chromium plating an increase in long-term stability. This is inventively achieved in that is dispensed with the chrome plating of the armature and instead a damping element is provided, which is provided between the armature and the stop.
- Damping element is applied as a layer on at least a portion of the anchor and / or on at least a portion of the stop.
- Damping layer can be applied very easily and inexpensively.
- the armature is preferably formed as a disk, whereby the mass of the armature can be reduced. As a result, an impact impulse is added
- Actuator of the armature reduced at the stop.
- the armature In addition to forming the armature as a disk, it is alternatively also possible for the armature to have a peripheral edge projecting in the axial direction on a disc-shaped base surface, so that the armature has a cup shape.
- the cup-shaped anchor can be produced for example by deep drawing or extrusion.
- the disc-shaped anchor can be produced for example by means of stamping.
- the anchor is preferably made of a soft magnetic material.
- the damping layer is made of a non-magnetic material and provides a magnetic residual air gap at the anchor ready.
- the damping layer is made of a hard plastic
- the damping layer is preferably sprayed onto the soft magnetic armature.
- the damping layer has a thickness in a range of 10 to 30 ⁇ , preferably about 20 ⁇ . It has been found that in particular a thickness of 20 ⁇ in terms of cost
- the armature has one or more fuel bores through which fuel can be passed from one side of the armature through the armature to the other side of the armature and then to the valve outlet.
- Magnet injectors can thus be very simple and
- valves according to the invention can be inwardly opening or outwardly opening valves.
- FIG. 1 shows a schematic sectional view of a valve according to a first embodiment of the invention
- FIG. 2 shows a schematic sectional view of a valve according to a second exemplary embodiment of the invention
- Figure 3 is a schematic sectional view of a valve according to a third embodiment of the invention.
- Figure 4 is a schematic sectional view of a valve according to a fourth embodiment of the invention.
- FIG. 1 shows a sectional view of a magnetic valve 1 according to a first embodiment for injecting fuel, wherein the valve is not shown completely, but only schematically.
- the valve comprises a valve needle 2 as an adjusting element and an armature 3, which is connected to the valve needle. As a result, the valve needle 2 moves together with the armature 3.
- a stop 6 is further provided, which has a Path of the anchor 3 limited.
- a provision of the armature 3 is effected by means of a return element 8.
- the valve is a solenoid valve and further comprises a coil 9, which moves the armature 3 in the direction of arrow A to the stop 6 during energization and thereby opens the valve.
- the armature 3 comprises an armature body 4, which is designed as a disk.
- a damping element 5 is applied in the form of a damping layer.
- the damping layer in this case has a thickness of about 20 ⁇ and is shown exaggerated in Figure 1 for reasons of clarity.
- the damping layer is made of a non-magnetic material, preferably plastic or a rubber material, e.g. Rubber, made.
- Damping layer damping the impact pulse on the stop 6 and also a damping of noise transmission. Since the anchor body 4 is a disc, an anchor mass is further reduced, so that also from this a reduced impact pulse at the stop 6 results.
- a passage opening 1 1 is further provided for a fuel passage from one side of the armature to the other side of the armature.
- Figure 2 shows a valve 1 according to a second embodiment of the
- FIG. 2 in the second exemplary embodiment, FIG. 1
- Damping element 5 is provided in the form of a damping layer on the stop 6.
- the armature 3 comprises only the soft-magnetic anchor body 4.
- the damping layer arranged on the stop 6 assumes the same function as the damping layer of the first embodiment.
- the third embodiment shown in Figure 3 is in addition to the
- Damping element 5 at anchor 3 additionally a second
- Damping element 10 is provided on the stop 6.
- both damping elements of the same material such as a
- the thicknesses of the first and second damping layers can be reduced compared to the two preceding embodiments, preferably to approximately half the thicknesses of the preceding one
- FIG. 4 shows a valve 1 according to a fourth embodiment, wherein in the fourth embodiment, a cup-shaped armature 13 is provided.
- the cup-shaped armature 13 has a disc-shaped base surface 14 and a peripheral edge 15.
- both the disk-shaped base surface 14 is coated on the side facing the stop 6 and the outside of the peripheral edge 15 with the damping layer.
- This has particular manufacturing advantages. It should also be noted that it is also possible that the pot-shaped armature is rotated by 180 ° and the damping layer is provided inside the pot-shaped armature.
- FIGS. 1 to 4 a magnet injector with inwardly opening needle was shown in each case. It should be noted, however, that it is also possible to use the invention in outward-opening magnetic injectors.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010064105A DE102010064105A1 (de) | 2010-12-23 | 2010-12-23 | Ventil zum Einspritzen von Kraftstoff |
PCT/EP2011/069494 WO2012084328A1 (de) | 2010-12-23 | 2011-11-07 | Ventil zum einspritzen von kraftstoff |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2655854A1 true EP2655854A1 (de) | 2013-10-30 |
Family
ID=44907878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11779181.4A Withdrawn EP2655854A1 (de) | 2010-12-23 | 2011-11-07 | Ventil zum einspritzen von kraftstoff |
Country Status (8)
Country | Link |
---|---|
US (1) | US9771908B2 (ko) |
EP (1) | EP2655854A1 (ko) |
JP (2) | JP6141191B2 (ko) |
KR (1) | KR20140005905A (ko) |
CN (1) | CN103261666B (ko) |
BR (1) | BR112013016023A2 (ko) |
DE (1) | DE102010064105A1 (ko) |
WO (1) | WO2012084328A1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012209330A1 (de) * | 2012-06-01 | 2013-12-05 | Robert Bosch Gmbh | Kraftstoffinjektor |
DE102012214920A1 (de) * | 2012-08-22 | 2014-02-27 | Continental Automotive Gmbh | Dämpfungsoberfläche an Ventilkomponenten |
JP6087210B2 (ja) * | 2013-05-24 | 2017-03-01 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
EP2860386A1 (en) * | 2013-10-10 | 2015-04-15 | Continental Automotive GmbH | Injector for a combustion engine |
EP2949917B1 (en) * | 2014-05-27 | 2017-01-04 | Continental Automotive GmbH | Fuel injector |
US20170254304A1 (en) * | 2014-09-17 | 2017-09-07 | Denso Corporation | Fuel injection valve |
EP3009663B1 (en) * | 2014-10-15 | 2020-06-24 | Vitesco Technologies GmbH | Valve assembly and fluid injector |
FR3030009B1 (fr) * | 2014-12-10 | 2017-07-14 | Delphi Int Operations Luxembourg Sarl | Electrovanne d'injecteur de carburant |
DE102016206180A1 (de) * | 2016-04-13 | 2017-10-19 | Robert Bosch Gmbh | Ventil, insbesondere Saugventil, in einer Hochdruckpumpe eines Kraftstoffeinspritzsystems |
JP6544416B2 (ja) * | 2017-12-06 | 2019-07-17 | 株式会社デンソー | 燃料噴射弁 |
DE102017222501A1 (de) * | 2017-12-12 | 2019-06-13 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61164456A (ja) * | 1985-01-11 | 1986-07-25 | Diesel Kiki Co Ltd | 電磁アクチユエ−タ |
JPH0220551Y2 (ko) * | 1985-02-27 | 1990-06-05 | ||
JPS63125875A (ja) * | 1986-11-15 | 1988-05-30 | Hitachi Ltd | 電磁式燃料噴射弁 |
JPH02180390A (ja) * | 1988-12-30 | 1990-07-13 | Aisin Aw Co Ltd | 圧力調整弁 |
US5350153A (en) * | 1992-10-05 | 1994-09-27 | Aura Systems, Inc. | Core design for electromagnetically actuated valve |
DE19849210A1 (de) * | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19900037A1 (de) * | 1999-01-02 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
JP2000274548A (ja) * | 1999-03-24 | 2000-10-03 | Bosch Automotive Systems Corp | ディスク型電磁弁および電磁式燃料噴射弁 |
DE10039078A1 (de) * | 2000-08-10 | 2002-02-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10124747A1 (de) * | 2001-05-21 | 2002-11-28 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10131201A1 (de) * | 2001-06-28 | 2003-01-16 | Bosch Gmbh Robert | Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
JP2003156169A (ja) | 2001-09-04 | 2003-05-30 | Denso Corp | 電磁式流体制御装置 |
JP2003231014A (ja) | 2002-02-12 | 2003-08-19 | Nagase Integrex Co Ltd | 工作機械 |
DE10256662A1 (de) * | 2002-12-04 | 2004-06-17 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102004037250B4 (de) * | 2004-07-31 | 2014-01-09 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
JP2006194237A (ja) | 2004-12-14 | 2006-07-27 | Denso Corp | 電磁式アクチュエータ |
EP1872007B1 (en) * | 2005-04-19 | 2008-07-09 | O.M.V.L. S.p.A. | A gaseous fuel injector for internal combustion engines |
JP4400638B2 (ja) * | 2007-03-06 | 2010-01-20 | 株式会社デンソー | 電磁弁およびそれを用いた燃料噴射装置 |
JP4591593B2 (ja) | 2008-02-13 | 2010-12-01 | 株式会社デンソー | 燃料噴射弁 |
US7946276B2 (en) * | 2008-03-31 | 2011-05-24 | Caterpillar Inc. | Protection device for a solenoid operated valve assembly |
JP2009287648A (ja) * | 2008-05-28 | 2009-12-10 | Nippon Soken Inc | 電磁弁 |
DE602008003425D1 (de) * | 2008-06-27 | 2010-12-23 | Fiat Ricerche | Kraftstoffeinspritzgerät mit symmetrischem Mess-Servoventil für einen Verbrennungsmotor |
EP2211046B1 (en) * | 2008-12-29 | 2011-03-02 | C.R.F. Società Consortile per Azioni | Fuel injection system with high repeatability and stability of operation for an internal-combustion engine |
-
2010
- 2010-12-23 DE DE102010064105A patent/DE102010064105A1/de not_active Ceased
-
2011
- 2011-11-07 WO PCT/EP2011/069494 patent/WO2012084328A1/de active Application Filing
- 2011-11-07 US US13/996,864 patent/US9771908B2/en active Active
- 2011-11-07 EP EP11779181.4A patent/EP2655854A1/de not_active Withdrawn
- 2011-11-07 CN CN201180061782.4A patent/CN103261666B/zh active Active
- 2011-11-07 BR BR112013016023A patent/BR112013016023A2/pt not_active IP Right Cessation
- 2011-11-07 JP JP2013545129A patent/JP6141191B2/ja not_active Expired - Fee Related
- 2011-11-07 KR KR1020137016124A patent/KR20140005905A/ko not_active Application Discontinuation
-
2016
- 2016-09-09 JP JP2016176917A patent/JP2017025922A/ja active Pending
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2012084328A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012084328A1 (de) | 2012-06-28 |
JP2017025922A (ja) | 2017-02-02 |
KR20140005905A (ko) | 2014-01-15 |
JP6141191B2 (ja) | 2017-06-07 |
CN103261666B (zh) | 2018-05-08 |
US20130327970A1 (en) | 2013-12-12 |
BR112013016023A2 (pt) | 2018-07-10 |
US9771908B2 (en) | 2017-09-26 |
DE102010064105A1 (de) | 2012-01-19 |
JP2014501347A (ja) | 2014-01-20 |
CN103261666A (zh) | 2013-08-21 |
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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 |
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17P | Request for examination filed |
Effective date: 20130723 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170125 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20180306 |