EP0859910B1 - Soupape, en particulier soupape d'injection de carburant - Google Patents

Soupape, en particulier soupape d'injection de carburant Download PDF

Info

Publication number
EP0859910B1
EP0859910B1 EP97942763A EP97942763A EP0859910B1 EP 0859910 B1 EP0859910 B1 EP 0859910B1 EP 97942763 A EP97942763 A EP 97942763A EP 97942763 A EP97942763 A EP 97942763A EP 0859910 B1 EP0859910 B1 EP 0859910B1
Authority
EP
European Patent Office
Prior art keywords
valve
turbulence
swirl
valve according
outlet opening
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
Application number
EP97942763A
Other languages
German (de)
English (en)
Other versions
EP0859910A1 (fr
Inventor
Norbert Keim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0859910A1 publication Critical patent/EP0859910A1/fr
Application granted granted Critical
Publication of EP0859910B1 publication Critical patent/EP0859910B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve

Definitions

  • the invention is based on a valve, in particular Fuel injector according to the genus of Main claim.
  • a valve in particular, is already known from EP-OS 0 057 407 a fuel injector known to one Valve closing body downstream upstream one Spray opening has a swirl body through which sprayed fuel is subjected to a swirl component becomes.
  • the resulting swirl flow is said to be better Swirl the fuel causing a finer Atomization of the fuel versus one Cord spraying is achieved.
  • a fuel injector is also from JP-OS 57-183559 known that a swirling device upstream of an outlet opening of the valve.
  • This swirling device has a variety of Spiral grooves that all have the same orientation and the application of a swirl component to the fuel serve for improved swirling.
  • the Atomization of the fuel by tangential running air supply channels with which the air also is twisted, can be improved.
  • the fluid to be sprayed emerges from an outlet opening of the Injector off and then flows through the Atomizer assembly using air over air lines is supplied.
  • the atomizer assembly includes two axially successive vortex planes, blown into the air becomes.
  • the vortex planes are designed so that the two air vortices to be formed an opposite one Preserve direction of rotation.
  • the valve according to the invention in particular Fuel injector with the characteristic features of the main claim has the advantage that in a simple manner and Way inexpensively without additional auxiliary energy Atomization quality of a sprayed and fine too atomizing fluids, in particular fuel is improved.
  • this is achieved by that on the valve downstream of the valve seat swirl generating agents are provided such that at least two main currents are formed which run at least partially radially offset from one another and so also at least one outlet opening of the valve flow through.
  • the two main currents have one deviating sense of direction. in the The area of contact of the two flows occurs due to the different orientation large shear forces that positively affect atomization.
  • the swirl-generating means are as Swirl attachments are provided directly on a perforated disc. Tangential in an inner flow area of the Swirl channels protruding are expediently in arranged at least two axially successive layers, with different radial in the individual layers Distances of the swirl channels to the longitudinal axis of the valve are present.
  • the swirl channels also differ from one to the other different location in their orientation. With one Arrangement is very easy to radially nested, generate opposing fluid flows in their Border areas the desired turbulence by increased Shear forces arise.
  • Embodiments of the invention are in the drawing shown in simplified form and in the following Description explained in more detail.
  • 1 shows it partially shown valve with the invention swirl-generating agents
  • Figures 2a and 2b idealized Principle sketches of flow patterns in one Exit opening
  • Figure 3 shows a section through a first Example of swirl generating agents along the line III-III in Figure 5
  • Figure 4 shows a section through a second Example of swirl-generating agents along the line IV-IV in Figure 5
  • Figure 5 is a plan view of a first Example of swirl-generating means
  • Figure 6 shows a third Example of swirl-generating agents in the form of a Swirl attachment
  • Figure 7 shows a section through the swirl attachment along the line VII-VII in Figure 6
  • Figure 8 a fourth Example of swirl-generating agents in the form of a Swirl attachment
  • Figure 9 is a schematically shown idealized speed distribution in the Outlet opening of the swirl attachment according to FIG. 6.
  • a valve is shown in FIG. 1 as an exemplary embodiment the shape of an injector for Fuel injection systems from mixture compressors spark-ignited internal combustion engines partially shown.
  • the injector has a tubular valve seat support 1, in which a valve axis 2 concentric Longitudinal opening 3 is formed.
  • a valve axis 2 concentric Longitudinal opening 3 is formed.
  • In the longitudinal opening 3 is a z.
  • tubular valve needle 5 arranged on the its downstream end 6 with a z.
  • the injection valve is actuated in a known manner Way, for example electromagnetic.
  • a return spring (not shown) or An indicated closing serves to close the injection valve electromagnetic circuit with a magnetic coil 10, one Anchor 11 and a core 12.
  • the anchor 11 is with the End of valve needle 5 facing away from valve closing body 7 through z. B. connected a weld using a laser and aligned with the core 12.
  • Valve seat body 16 To guide the valve closing body 7 during the A guide opening 15 serves for axial movement Valve seat body 16.
  • the core 12 opposite end of the valve seat support 1 is in the concentric to the longitudinal axis 2 of the valve Longitudinal opening 3 of the z.
  • cylindrical valve seat body 16 tightly assembled by welding.
  • the valve seat body 16 At its the Valve closing body 7 facing away from the lower end face 17 the valve seat body 16 with a z.
  • pot-shaped trained perforated disc (or nozzle plate) 21 concentrically and firmly connected so that they are immediately on the Valve seat body 16 abuts.
  • perforated disc 21 for. B.
  • a central outlet opening 22 by punching, eroding introduced or etching through which a fluid according to the invention is hosed with at least two flows has different sense of direction.
  • This Flow characteristic is determined by a downstream Valve seat surface 29 arranged swirl-generating means 23 achieved, which are explained in detail below.
  • valve seat body 16 and perforated disk 21 takes place, for example, by a circumferential and dense, first weld seam 25 formed by a laser. With this type of assembly there is a risk of undesirable deformation of the perforated disc 21 in her middle area with the outlet opening 22 and there arranged swirl generating means 23 avoided.
  • the Perforated disc 21 is also with the wall of the Longitudinal opening 3 in the valve seat support 1, for example a circumferential and tight second weld 30 connected.
  • the insertion depth of the valve seat body 16 and pot-shaped perforated disk 21 or means 23 existing Valve seat part in the longitudinal opening 3 determines the size of the Hubs of the valve needle 5, since the one end position of the Valve needle 5 when the solenoid 10 is not energized by the Contact of the valve closing body 7 on the valve seat surface 29 of the valve seat body 16 is fixed.
  • the other The end position of the valve needle 5 is when the solenoid is excited 10, for example, by the anchor 11 resting against the core 12 set. The path between these two end positions the valve needle 5 thus represents the stroke.
  • the spherical valve closing body 7 acts with the in Direction of flow tapering in the shape of a truncated cone Valve seat surface 29 of the valve seat body 16 together, the in the axial direction between the guide opening 15 and the lower end face 17 of the valve seat body 16, namely formed upstream of the swirl generating means 23 is.
  • the valve partially shown in Figure 1 only provides an exemplary embodiment Swirl-generating agents 23 according to the invention can also be used valves that differ significantly therefrom can be used.
  • Figures 2a and 2b show idealized schematic diagrams of the desired flow profiles according to the invention in a Exit opening 22, the z. B. in the perforated disc 21st is introduced.
  • the course of the flow is by no means a cup-shaped one Perforated disc 21 required according to Figure 1; rather can the perforated disks 21 or nozzle plates with completely different ones Contours be designed.
  • the outlet opening 22 can also directly in the valve seat body 16 or one Nozzle holder may be provided.
  • the basic sketches illustrate that with the upstream of the Swirl-generating means 23 located at outlet opening 22 at least two flows of the fluid, especially one Fuel that are generated are largely independent run radially offset from each other and thereby one have different directions of direction, the principal flow direction (spray direction) of both Subcomponents in the outlet opening 22 along the Longitudinal valve axis 2 is the same as arrows 32 to hint.
  • An inner flow component 33 has so regardless of the general axial Flow direction 32 on a sense of direction, which differs from the sense of direction of an outer one, which is dashed shown inner flow with radially surrounding flow an outer flow component 34 differs.
  • Figure 2a illustrates a flow principle in which the Inner flow component 33 shown in dashed lines largely follows the axial flow direction 32 while the fluid around the inner flow area is an outer one Has flow component 34 by a Swirl application is marked.
  • the inner one Flow component 33 thus becomes circular flows around in spiral fashion from the outer flow component 34.
  • the outer flow component 34 also the inner Flow component 33 a swirl, which by means of swirl generating means 23 in opposite directions Direction of the outer flow component 34 is generated.
  • two flow through in the axial flow direction 32 largely independent, radially nested, spiral-like, in opposite directions from the direction Fluid flows 33, 34 the outlet opening 22.
  • FIGS 3 to 5 show embodiments of swirl generating means 23 to achieve a Flow principle according to Figure 2a;
  • Figures 6 to 9 represent Examples of swirl generating means 23 with which Flows according to Figure 2b can be achieved.
  • Figures 3, 4 and 5 are two examples of swirl generating means 23 shown as swirl elements on the perforated disk 21st are formed and in a downstream of the Valve seat surface 29 following cylindrical opening area 35 of the valve seat body 16 from the plane of the perforated disk 21 protrude towards the valve closing body 7.
  • a Top view ( Figure 5) of the swirl-generating means 23 in The area of the opening area 35 illustrates the shape and Arrangement of the means 23 on the perforated disc 21, the Figures 3 and 4 ultimately expanded sectional views along the line III-III or IV-IV in this plan view are.
  • the swirl-generating means 23 are with these Embodiments in the form of a ring around the Outlet opening 22 arranged, arcuate Guide elements 37, 37 'executed, of which for example four to twenty in a row in the circumferential direction are arranged. In the sum of the guide elements 37, 37 ' this results in an arrangement similar to a paddle wheel.
  • the Arc shape of the guide elements 37, 37 'in one and the same Direction ensures that one between them fluid flowing through is subjected to a swirl.
  • the guide elements 37 of the shown in Figure 3 Embodiments have over their entire arc length a constant axial height, while the guide elements 37 'in Figure 4 have contours, which are characterized by upper, radially from falling inwards towards the outlet opening 22 Mark out boundary pages 38.
  • FIGS. 3 and 4 are downstream of the valve seat surface 29 in the Fluid entering the opening area 35 in a ring shape generated two main currents.
  • the ways to form the The two flow components 33 and 34 are shown in FIG. 3 characterized.
  • the flow component 33 results from that part of the fluid immediately downstream of the Valve closing body 7 not between the lower ones Guide elements 37, 37 ', but above the Guide elements 37, 37 'and thus without swirl in Direction flows to the inner outlet opening 22 and in this entry.
  • Another part of the fluid flows into the areas between the guide elements 37, 37 ', where it is a Experiences swirl and thus the swirl Flow component 34 arises that the inner Flow component 33 sheathed.
  • the guide elements 37, 37 ' are formed, for example, in one piece on the perforated disk 21, where particularly well-known methods of manufacturing Electroforming (LIGA, MIGA technology) are suitable. Widths of approx. 20 to 50 ⁇ m and axial heights of approx. 100 to 300 ⁇ m conceivable orders of magnitude for the guide elements 37, 37 '. This Size information is only for better understanding and do not limit the invention in any way.
  • swirl-generating means 23 are z. B. um Swirl attachments produced separately from the perforated disk 21 40, the z. B. by gluing, welding or soldering the perforated disc 21 are connected.
  • the swirl attachments 40 can also be provided in one piece on the perforated disc 21 his. Similar to the guide elements 37, 37 ', they also protrude Swirl attachments 40 in the opening area 35 of the Valve seat body 16 into it.
  • Set the swirl attachments 40 Components represented by two axially consecutive Mark layers 41 and 42. Each layer 41, 42 serves as Functional level of generating a swirl Flow.
  • the upper valve closing body 7 facing layer 41 has a smaller outer diameter than that lower, the outlet opening 22 facing position 42.
  • the inner flow area 55 is included just as graduated as the outer contour of the Twist attachment 40, d. H. in the upper layer 41 Flow area 55 a smaller diameter than in the lower layer 42.
  • the swirl channels 51, 52 are e.g. B. with square or circular Provide cross sections.
  • the valve closing body 7 is the swirl attachment 40 through an upper boundary surface 56 closed, but towards the outlet opening 22 of course open.
  • Figure 7 is a sectional view along the line VII-VII in Figure 6 by the upper layer 41 of the Swirl attachment 40. It can be seen from FIG. 7 that the Swirl channels opening tangentially into the flow region 55 51, 52 have an opposite orientation, so that a fluid flowing in two largely radially from each other separate, twisted, opposing Flow components 33, 34 receives. In the exit opening 22 remains generated in the flow region 55 Flow distribution largely preserved, so that in the Boundary areas of the two flow components 33, 34 occurring increased shear forces lead to turbulence particularly desirable for improved atomization of the fluid are.
  • FIG. 8 shows an exemplary embodiment of a Twist attachment 40 shown, which differs only slightly from that differs shown in Figure 6 differs.
  • FIG. 9 shows a schematically represented idealized speed distribution radially over the Diameter of the outlet opening 22 downstream of the Twist attachment 40 in Figure 6, from which the opposite Flow components 33 and 34 emerge very well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (11)

  1. Soupape, notamment injecteur pour des installations d'injection de carburant de moteurs à combustion interne, comportant un axe longitudinal (2), un organe d'obturation (7) coopérant avec une surface formant siège de soupape (29), au moins un orifice de sortie (22) en aval de la surface formant siège de soupape (29), des moyens (23) générant une composante de rotation, ces moyens étant situés en amont d'au moins un orifice de sortie (22) pour induire une composante de rotation dans le liquide à éjecter,
    caractérisée en ce que
    les moyens donnant la composante de rotation (23) sont formés pour générer au moins deux écoulements (33, 34) décalés au moins partiellement radialement, en se touchant, dans au moins un orifice de sortie (22) et ayant un sens de rotation différent.
  2. Soupape selon la revendication 1,
    caractérisée en ce que
    l'orifice de sortie (22) est prévu dans un disque à trous (21).
  3. Soupape selon la revendication 2,
    caractérisée en ce que
    les moyens (23) générant des composantes de rotation sont réalisés sur le disque à trous (21) en aval de la surface formant siège de soupape (29).
  4. Soupape selon la revendication 3,
    caractérisée en ce que
    les moyens (23) générant une composante de rotation sont constitués par plusieurs éléments de guidage (37, 37') en forme d'anneaux de cercle, et qui prédéfinissent ensemble un sens de rotation.
  5. Soupape selon la revendication 4,
    caractérisée en ce que
    les éléments de guidage (37, 37') sont en forme d'arcs.
  6. Soupape selon l'une quelconque des revendications 4 ou 5,
    caractérisée en ce que
    les bords supérieurs (38) des éléments de guidage (37'), tournés vers le corps (7) de l'organe d'obturation de l'injecteur, descendent radialement de l'extérieur vers l'intérieur vers l'axe longitudinal (2) de l'injecteur pour que les hauteurs axiales des éléments de guidage (37') diminuent radialement de l'extérieur vers l'intérieur.
  7. Soupape selon la revendication 3,
    caractérisée en ce que
    les moyens générant une composante de rotation (23) sont prévus dans une garniture de rotation (40) du disque à trous (21).
  8. Soupape selon la revendication 7,
    caractérisée en ce que
    la garniture générant la rotation (40) possède une zone d'écoulement intérieure (55) dans laquelle débouchent tangentiellement les canaux engendrant la rotation (51, 52) et ces canaux partent de la périphérie radiale extérieure de la garniture de rotation (40).
  9. Soupape selon la revendication 8,
    caractérisée en ce que
    les canaux de rotation (51, 52) sont prévus dans deux couches différentes (41, 42) de la garniture de rotation (40) et chaque fois les canaux de rotation (51, 52), éloignés à distance radiale égale de l'axe longitudinal (2) de l'injecteur, sont réalisés dans l'une des couches (41, 42).
  10. Soupape selon la revendication 9,
    caractérisée en ce que
    les canaux de rotation (51, 52) de chaque couche (41, 42) ont la même orientation mais l'orientation des canaux (51) d'une couche (41) est opposée à l'orientation des canaux de rotation (52) de l'autre couche (42).
  11. Soupape selon la revendication 8,
    caractérisée en ce que
    la garniture de rotation (40) comporte centralement un téton (58) dirigé axialement qui traverse la zone de passage intérieur (55) et pénètre partiellement dans au moins un orifice de sortie (22).
EP97942763A 1996-09-12 1997-08-30 Soupape, en particulier soupape d'injection de carburant Expired - Lifetime EP0859910B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19637103A DE19637103A1 (de) 1996-09-12 1996-09-12 Ventil, insbesondere Brennstoffeinspritzventil
DE19637103 1996-09-12
PCT/DE1997/001905 WO1998011341A1 (fr) 1996-09-12 1997-08-30 Soupape, en particulier soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP0859910A1 EP0859910A1 (fr) 1998-08-26
EP0859910B1 true EP0859910B1 (fr) 2002-03-20

Family

ID=7805392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97942763A Expired - Lifetime EP0859910B1 (fr) 1996-09-12 1997-08-30 Soupape, en particulier soupape d'injection de carburant

Country Status (5)

Country Link
US (1) US6089473A (fr)
EP (1) EP0859910B1 (fr)
JP (1) JP2000500213A (fr)
DE (2) DE19637103A1 (fr)
WO (1) WO1998011341A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6125818A (en) * 1997-03-19 2000-10-03 Hiatchi, Ltd. Fuel injector and internal combustion engine having the same
DE19815780A1 (de) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Brennstoffeinspritzventil und Verfahren zur Montage eines Brennstoffeinspritzventils
DE19815800A1 (de) 1998-04-08 1999-10-14 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19815795A1 (de) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Zerstäuberscheibe und Brennstoffeinspritzventil mit Zerstäuberscheibe
DE10038098A1 (de) * 2000-08-04 2002-02-14 Bosch Gmbh Robert Brennstoffeinspritzventil
US6390067B1 (en) * 2000-08-10 2002-05-21 Delphi Technologies, Inc. Valve seat retainer for a fuel injector
DE10041440A1 (de) 2000-08-23 2002-03-07 Bosch Gmbh Robert Drallscheibe und Brennstoffeinspritzventil mit Drallscheibe
DE10046304C1 (de) * 2000-09-19 2002-06-06 Bosch Gmbh Robert Verfahren zum Herstellen eines Ventilsitzkörpers eines Brennstoffeinspritzventils
DE10056006A1 (de) 2000-11-11 2002-05-16 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10061571B4 (de) * 2000-12-11 2007-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
US6513730B1 (en) * 2001-03-21 2003-02-04 The United States Of America As Represented By The National Aeronautics And Space Administration MEMS-based spinning nozzle
US6848635B2 (en) * 2002-01-31 2005-02-01 Visteon Global Technologies, Inc. Fuel injector nozzle assembly with induced turbulence
DE10229871A1 (de) 2002-07-03 2004-01-15 Robert Bosch Gmbh Zerstäubungsanordnung
US6938839B2 (en) * 2002-08-15 2005-09-06 Visteon Global Technologies, Inc. Needle alignment fuel injector
JP4154317B2 (ja) * 2003-04-25 2008-09-24 トヨタ自動車株式会社 燃料噴射弁
US7299997B2 (en) * 2003-10-27 2007-11-27 Siemens Vdo Automotive Corporation Fuel injector with sauter-mean-diameter atomization spray of less than 70 microns
ITTO20030990A1 (it) * 2003-12-10 2005-06-11 Fiat Ricerche Dispositivo iniettore di combustibile per un motore a combustione interna.
JP2005226846A (ja) * 2004-02-10 2005-08-25 Daikin Ind Ltd 膨張弁及び冷凍装置
JP5978154B2 (ja) * 2013-03-08 2016-08-24 日立オートモティブシステムズ株式会社 燃料噴射弁
JP5887291B2 (ja) * 2013-03-08 2016-03-16 日立オートモティブシステムズ株式会社 燃料噴射弁
JP6429461B2 (ja) * 2013-05-13 2018-11-28 株式会社エンプラス 燃料噴射装置用ノズルプレート
CN105986863A (zh) * 2015-02-15 2016-10-05 浙江福爱电子有限公司 一种排气后处理用旋流喷嘴
CN109862967B (zh) * 2016-09-13 2021-10-08 品谱股份有限公司 涡旋壶淋浴头引擎

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843821A (en) * 1929-09-30 1932-02-02 Joslyn Diesel Engine Company L Fuel atomizing nozzle
US2920831A (en) * 1957-02-28 1960-01-12 Jr Wadsworth J Johnsyn Fuel atomizing nozzle
US3081952A (en) * 1961-06-30 1963-03-19 Bendix Corp Fuel nozzle
US3326470A (en) * 1965-04-27 1967-06-20 Babcock & Wilcox Co Liquid atomizer
JPS57126554A (en) 1981-01-30 1982-08-06 Hitachi Ltd Electro magnetic fuel jet valve
JPS57183559A (en) 1981-05-06 1982-11-11 Hitachi Ltd Fuel injection valve
JPS60111057A (ja) * 1983-11-21 1985-06-17 Hitachi Ltd 電磁式燃料噴射弁
DE3921079A1 (de) * 1989-06-28 1991-01-03 Bosch Gmbh Robert Anordnung zur zerstaeubung
DE3940585A1 (de) * 1989-12-08 1991-06-13 Bosch Gmbh Robert Elektromagnetisch betaetigbares kraftstoffeinspritzventil
US5570841A (en) * 1994-10-07 1996-11-05 Siemens Automotive Corporation Multiple disk swirl atomizer for fuel injector

Also Published As

Publication number Publication date
DE59706677D1 (de) 2002-04-25
WO1998011341A1 (fr) 1998-03-19
JP2000500213A (ja) 2000-01-11
US6089473A (en) 2000-07-18
DE19637103A1 (de) 1998-03-19
EP0859910A1 (fr) 1998-08-26

Similar Documents

Publication Publication Date Title
EP0859910B1 (fr) Soupape, en particulier soupape d'injection de carburant
DE19638201B4 (de) Brennstoffeinspritzventil
EP0704620B1 (fr) Dispositif d'injection de combustible
EP0783628B1 (fr) Soupape d'injection de carburant
EP0935707B1 (fr) Injecteur de carburant
EP1073838A1 (fr) Soupape d'injection de carburant
EP1184565A2 (fr) Disque perforé notamment pour injecteurs et son procédé de fabrication
WO2000050765A1 (fr) Soupape d'injection de carburant
DE102005017420A1 (de) Brennstoffeinspritzventil
DE19815775A1 (de) Drallscheibe und Brennstoffeinspritzventil mit Drallscheibe
DE102004005526A1 (de) Kraftstoffeinspritzvorrichtung einer Brennkraftmaschine mit innerer Verbrennung
DE19636396A1 (de) Brennstoffeinspritzventil
DE4408875A1 (de) Brennstoffeinspritzventil
EP1012472A1 (fr) Soupape d'injection de carburant et procede de montage de ladite soupape
WO2008028786A1 (fr) Soupape d'injection de combustible
DE19907859A1 (de) Brennstoffeinspritzventil
EP1112446B1 (fr) Soupape d'injection de carburant
EP1399669A1 (fr) Soupape d'injection de carburant
EP2478211B1 (fr) Module buse pour soupape d'injection, et soupape d'injection correspondante
WO2002084111A1 (fr) Soupape d'injection de carburant
WO2005042968A1 (fr) Soupape d'injection de carburant
DE3940585A1 (de) Elektromagnetisch betaetigbares kraftstoffeinspritzventil
DE102006044439A1 (de) Brennstoffeinspritzventil
EP1379777B1 (fr) Soupape d'injection de carburant
WO2012084836A1 (fr) Module buse pour une soupape d'injection et soupape d'injection

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19980921

17Q First examination report despatched

Effective date: 20001211

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

REF Corresponds to:

Ref document number: 59706677

Country of ref document: DE

Date of ref document: 20020425

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020529

ET Fr: translation filed
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: 20021223

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030729

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030819

Year of fee payment: 7

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 NON-PAYMENT OF DUE FEES

Effective date: 20040830

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20041011

Year of fee payment: 8

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040830

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: 20050429

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050830

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: 20060301