EP0975870A1 - Brennstoffeinspritzventil oder brennstoffeinspritzdüse - Google Patents
Brennstoffeinspritzventil oder brennstoffeinspritzdüseInfo
- Publication number
- EP0975870A1 EP0975870A1 EP98932005A EP98932005A EP0975870A1 EP 0975870 A1 EP0975870 A1 EP 0975870A1 EP 98932005 A EP98932005 A EP 98932005A EP 98932005 A EP98932005 A EP 98932005A EP 0975870 A1 EP0975870 A1 EP 0975870A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- fuel
- valve
- nozzle
- sleeve body
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of 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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
Definitions
- the invention relates to a development that can be implemented both on a fuel injection valve and on a fuel injection nozzle, in particular for the direct injection of fuel into the combustion chamber of an internal combustion engine.
- the invention relates to a fuel injector according to the preamble of the main claim.
- a fuel injector is e.g. known from DE-PS 43 03 813.
- the known fuel injection nozzle comprises a nozzle body with a
- a valve needle is axially movable, which has a valve closing body at its downstream end.
- the valve closing body has a conical shape and has a valve closing surface which cooperates with a valve seat surface provided on the inside of the nozzle body to form a valve seat.
- the valve needle is biased in the closing direction by a return spring.
- the nozzle body has a plurality of radial bores which are arranged around the circumference and penetrate the nozzle body and in which
- a fuel injector of a similar design, but with several pairs of radial bores, which open out at a common outlet opening at different spray angles, is known from DE-OS 41 42 430.
- a disadvantage of these known fuel injection nozzles is that the axial and radial fuel distribution cannot be adapted to the geometrical conditions of the internal combustion engine on which the fuel injection nozzles are mounted.
- the position of the spark plug, the intake and exhaust valves and other components in and on the combustion chambers of the internal combustion engine can vary considerably from internal combustion engine to internal combustion engine or from vehicle type to vehicle type, the flexible use of the known fuel injection nozzles is limited.
- the impact surface can be compared to the vertical plane of the longitudinal axis of the
- Fuel injection valve or the fuel injection nozzle may be inclined both in the radial and in the tangential direction. Together with the surface structuring, there are therefore several degrees of freedom for fuel jet shaping. A variation of the fuel distribution can be implemented inexpensively in such a way that for each
- the impact surface of the sleeve body has an at least partially circumferential tear-off edge at its radially outward end, which is undercut by an at least partially circumferential groove in the sleeve body such that the contour of the sleeve body forms an acute angle at the tear-off edge.
- a recirculation zone is created in the area of the groove.
- the arrangement of ignition electrodes is advantageously possible in this area, since in this area the concentration of the fuel-air mixture lies within the ignition limits.
- the ignition electrodes are arranged so that they extend axially only up to the circumferential groove of the sleeve body, it is ensured that the ignition electrodes are not directly wetted by the fuel jet, which would be disadvantageous.
- the ignition electrodes are to a certain extent in the shadow of the tear-off edge.
- the sleeve body can be divided in a particularly advantageous manner into a plurality of sectors spaced apart by cutouts. At least one impact surface for a fuel jet is provided in each sector.
- the nozzle body preferably has a plurality of circumferentially distributed radial bores, through which a separate fuel jet emerges and impinges on an assigned sector of the sleeve body.
- the impingement surfaces can also be inclined in the tangential direction with respect to the vertical plane of the longitudinal axis.
- the impact surface of the sleeve body or the impact surface of each sector of the sleeve body can advantageously have a surface structuring, preferably in the form of grooves running in the radial direction.
- the fuel injection valve or the fuel injection nozzle can either have an inside opening or an outside opening valve closing body.
- an externally opening valve closing body it is advantageous if the sleeve body projects beyond the spray-side end of the nozzle body forming the valve seat surface by an axial length dimension that is smaller than the maximum opening stroke of the valve closing body. It is thereby achieved that the fuel jet strikes the impact surface of the sleeve body with a small opening stroke of the valve closing body and is deflected in the axial direction. With a relatively large opening stroke of the valve closing body, on the other hand, part of the fuel jet does not strike the impact surface of the sleeve body, but is sprayed off in the radial direction. This variation of the effective spray direction as a function of the opening stroke is very advantageous in some applications of fuel injectors or fuel injectors directly in the combustion chamber of the internal combustion engine.
- FIG. 1 shows a first embodiment of a fuel injector according to the invention in a partially sectioned illustration
- Fig. 2 shows a section through the spray end of the one shown in Fig. 1
- Fig. 3 shows a second embodiment of an inventive
- Fuel injection nozzle in an excerpt, sectional view, 4 shows the detail IV in FIG. 3 in an enlarged view
- FIG. 5 shows a third exemplary embodiment of a fuel injector according to the invention in an excerpt
- FIG. 6 is a spray-side view of a fourth embodiment of a fuel injector according to the invention.
- Fig. 7 is a section along the line VII-VII in Fig. 6 and
- Fig. 8 shows a section through the spray end of a fifth
- Embodiment of a fuel injector according to the invention Embodiment of a fuel injector according to the invention.
- the fuel injection nozzle 1 shows a fuel injector 1 according to the invention in a partially sectioned illustration.
- the fuel injection nozzle 1 is suitable for injecting fuel, for example diesel fuel, directly into the combustion chamber of an internal combustion engine, for example a self-igniting internal combustion engine.
- the development according to the invention is also suitable in the same way for fuel injectors, preferably also directly in the combustion chamber of the internal combustion engine, for example for direct gasoline injection in spark-ignited internal combustion engines.
- the fuel injection nozzle 1 has a nozzle body 2 that can be inserted into a mounting hole of a cylinder head of an internal combustion engine and extends along a longitudinal axis 3 of the fuel injection nozzle 1.
- the nozzle body 2 is surrounded by a sleeve body, which is shown in section in FIG.
- the sleeve body 4 has at its spray-side end 18 an inwardly projecting projection 5 which is triangular in cross-sectional profile and surrounds a spray-side end section 6 of the fuel injector 1 in a ring shape.
- the spray-side end region of the fuel injector 1 according to the invention is shown in FIG.
- the nozzle body 2 shown enlarged in a sectional view.
- the nozzle body 2 has a blind bore 10 which extends along the longitudinal axis 3 and which receives a valve needle 11.
- the nozzle body On its spray-side end section 6, the nozzle body has a rounded bulge 12, which is essentially V-shaped in cross-sectional profile.
- the bulge 12 has on its inside a valve seat surface 13 which cooperates with a valve closure surface 15 provided on a valve closure body 14 to form a valve seat.
- the valve closing body 14, which is formed, for example, in one piece with the valve needle 11, is conical in two stages in the exemplary embodiment shown, with an upstream conical section 14a and a downstream conical section 14b, the valve closing surface 15 being the lateral surface of the downstream conical section 14b.
- At least one radial bore 16 is provided in the bulge 12 .
- a plurality of circumferentially distributed radial bores 16 which are radial to the
- the nozzle body 2 is surrounded by the sleeve body 4, which is preferably made of stainless steel or a ceramic material.
- the downstream end 18 of the sleeve body 4 extends into the region of the fuel jets 17 sprayed from the radial bores 16.
- the fuel jets 17 are surmounted in the axial direction by the sleeve body 4.
- the sleeve body 4 has a meeting surface 19 on which all Impact fuel jets 17. The impact surface 19 is shown in FIG. 2
- the impingement surface 19 could also be tangential Direction opposite the radial direction.
- the angle of inclination ⁇ which the impingement surface 19 occupies with respect to the vertical plane 20 of the longitudinal axis 3, is preferably a flat one
- the range for the angle of inclination ⁇ is preferably between 5 ° and 30 ° and is particularly preferably approximately 15 °.
- the hit on the fuel rays 17 on the impact surface 19 of the sleeve body 4 causes a particularly good swirling of the fuel rays 17 and thus the generation of fuel particles of small diameter. Furthermore, the air-fuel mixing is promoted. An improvement of these effects can also be achieved in that the impact surface 19 has a predetermined surface roughness.
- An air gap 21 is provided between the inwardly projecting projection 5 of the sleeve body 4 and the nozzle body 2, which causes the thermal insulation between the spray-side end 18 of the sleeve body 4 and the nozzle body 2.
- FIG. 3 shows a second exemplary embodiment of an injection nozzle according to the invention in a cut, excerpted illustration. Elements which have already been described are provided with the same reference numerals, so that a repetitive description is unnecessary.
- the embodiment shown in FIG. 3 relates to an application in a spark ignition internal combustion engine. In the embodiment shown in Fig. 3, a spark plug is combined with the injector 1 or a fuel injector.
- the sleeve body 4 has a circumferential groove 30 which is V-shaped in cross section.
- the Impact surface 19 is delimited radially outwards by a tear-off edge 31.
- Sleeve body 4 forms at the tear-off edge 31 an acute edge angle ⁇ , the
- Edge angle ß is further reduced by the V-shaped groove 30.
- Fig. 4 shows the detail IV in Fig. 3 in an enlarged view. To illustrate the effect of the tear-off edge 31, the fuel jet 17 is also shown. As shown in FIG. 4 by the arrows 32, a recirculation zone is formed in the area of the groove 30, in which the fuel-air mixture flows in the direction of an ignition electrode 33.
- a plurality of ignition electrodes are provided, which are distributed around the circumference of the sleeve body 4 and are electrically insulated from one another by a cutout or an insulation body. Adjacent ignition electrodes 33 each have a different pole of a high-voltage source, the sparkover being generated at the downstream end of the ignition electrodes 33.
- the ignition electrodes 33 extend into the area of the circumferential groove 30 or end slightly upstream of the groove 30. In the recirculation zone, caused by the tear-off edge 31, a well-swirled air-fuel mixture is formed which lies within the ignition limits and between one Ignition electrodes 33 skipping ignition sparks is therefore easily ignitable. However, the fuel jet 17 does not directly hit the ignition electrodes 33, so that disadvantageous wetting of the ignition electrodes 33 with fuel is avoided.
- the sleeve body 4 from an electrically insulating material, in particular from a suitable ceramic material, in order to ensure that the ignition electrodes 33 are insulated from the nozzle body 2.
- a single ignition electrode 33 can optionally also be used, the ignition spark jumping over to a suitable counterpart on the nozzle body 2 which carries the counter potential.
- the recirculation zone identified by the arrows 32 can also be used to ignite the fuel-air mixture by means of a separate spark plug which is not combined with the fuel injection nozzle 1 or the fuel injection valve.
- FIG. 5 shows a third exemplary embodiment of a fuel injection nozzle 1 according to the invention. Also in FIG. 5, elements that have already been described are provided with the same reference numerals, so that a repetitive description is unnecessary.
- the nozzle body 2 is not shown in section.
- the injection-side bulge 12 with a radial bore 16 penetrating the bulge 12 can be seen.
- a total of four radial bores 16 are provided, which are offset from one another by 90 ° in each case.
- a sector 41 to 43 which is formed on the main body 40 of the sleeve body 4 is assigned to each radial bore 16.
- the individual sectors 41 to 43 are separated from one another by cutouts 44, 45.
- a contact surface 46 to 48 is provided on each sector 41 to 43 and is tangentially inclined by an angle of inclination ⁇ with respect to the vertical plane 20 of the longitudinal axis 3. Additionally or alternatively, a radial inclination of the impact surfaces 46 to 48 can also be provided.
- the fuel jets not shown in FIG. 5 are reflected or scattered at the impingement surfaces 46 to 48 of the assigned sectors 41 to 43, which causes a suitable fanning out of the fuel jets and a better swirling of the fuel-air mixture.
- the geometric design of the individual sectors 41 to 43 can be adapted to the geometric design of the combustion chamber of the internal combustion engine on which the fuel injector 1 is used.
- the angle of inclination ⁇ of each impact surface 46 to 48 can be selected differently, depending on whether the spark plug or intake and exhaust valves are arranged in the corresponding area of the internal combustion engine, and their wetting with fuel should be avoided as far as possible. In this way, the exhaust gas values of the internal combustion engine can be significantly improved.
- FIG. 6 shows the view of the injection-side end of the fuel injection nozzle 1.
- the injection-side bulge 12 of the nozzle body 2 and the sleeve body 4 surrounding the nozzle body 2 can be seen.
- the contact surface 19 of the sleeve body 4 has a groove-like surface structure.
- a radially extending groove 50 to 53 is provided for each fuel jet.
- the grooves 50 to 53 initially taper in their radial course from the inside to the outside, while then widening like a diffuser until they open out.
- the grooves 50 to 53 serve to improve the beam guidance of the fuel jets 17 and can of course also be designed in another suitable manner.
- FIG. 7 shows a section along the line V ⁇ -VII in FIG. 6 for better illustration, the depression of the groove 52 becoming clear.
- FIG. 8 shows a fifth exemplary embodiment of a fuel injection nozzle 1 according to the invention. Elements which have already been described are again provided with the same reference numerals, so that a repetitive description is unnecessary.
- the fuel injector 1 shown in FIG. 8 has an externally opening valve closing body 14.
- the nozzle body 2 has a through bore 60 designed as a stepped bore, in which a valve needle 11 is arranged.
- the valve needle 11 has a guide section 61 which is in a step with a larger diameter 62 of the through hole 60 is guided.
- the annular valve closing body 14 is formed on the outside, the valve closing surface 15 with the
- Valve seat surface 13 of the nozzle body 2 cooperates to form a valve seat. The one from the
- Fuel injector 1 injected fuel jet hits the impact surface 19 of the valve opening body 14 with a small opening stroke
- Sleeve body 4 and is from the impact surface 19 in the axial direction, i.e. in
- Valve closing body 14 the fuel jet is widened in the direction of the longitudinal axis 3 and from a predetermined opening stroke of the valve closing body 14 no longer completely meets the impingement surface 19. A partial beam is therefore sprayed flat in the radial direction, while another partial beam as described on the impact surface 19 of the sleeve body 4 is reflected in the direction of the longitudinal axis 3.
- Fuel injectors are definitely an advantage. With a small opening stroke
- Fuel injector 1 the piston of the internal combustion engine assigned to it is located at a relatively large distance from its top dead center and thus at a relatively large distance from fuel injector 1. It is therefore advantageous if the
- Fuel injector 1 moves the associated piston of the internal combustion engine and thus the combustion bowl in the direction of top dead center. In this operating state, it is therefore advantageous if the fuel jet is sprayed relatively flat in the direction of the now-displaced combustion bowl.
- the invention is not limited to the exemplary embodiments described.
- the exemplary embodiments can be easily combined with one another and, for example, surface structuring of the impact surface 19 can also be used on an exemplary embodiment with a radially or tangentially inclined impact surface 19.
- the illustrated and described further development according to the invention can also in Fuel injectors are used for injecting fuel directly into the combustion chamber of an internal combustion engine, in particular in gasoline direct injection valves.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19726727 | 1997-06-24 | ||
DE19726727A DE19726727A1 (de) | 1997-06-24 | 1997-06-24 | Brennstoffeinspritzventil oder Brennstoffeinspritzdüse |
PCT/DE1998/001159 WO1998059168A1 (de) | 1997-06-24 | 1998-04-25 | Brennstoffeinspritzventil oder brennstoffeinspritzdüse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0975870A1 true EP0975870A1 (de) | 2000-02-02 |
EP0975870B1 EP0975870B1 (de) | 2003-09-10 |
Family
ID=7833455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98932005A Expired - Lifetime EP0975870B1 (de) | 1997-06-24 | 1998-04-25 | Brennstoffeinspritzventil oder brennstoffeinspritzdüse |
Country Status (6)
Country | Link |
---|---|
US (1) | US6186419B1 (de) |
EP (1) | EP0975870B1 (de) |
JP (1) | JP2000517030A (de) |
KR (1) | KR20000068296A (de) |
DE (2) | DE19726727A1 (de) |
WO (1) | WO1998059168A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19820513A1 (de) * | 1998-05-08 | 1999-11-11 | Mtu Friedrichshafen Gmbh | Kraftstoffeinspritzdüse für eine Brennkraftmaschine |
DE10118163B4 (de) | 2001-04-11 | 2007-04-19 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
PL202458B1 (pl) * | 2001-05-04 | 2009-06-30 | Edward Jakubowski | Rozpylacz otworowy |
US7070126B2 (en) * | 2001-05-09 | 2006-07-04 | Caterpillar Inc. | Fuel injector with non-metallic tip insulator |
DE10148597A1 (de) * | 2001-10-02 | 2003-08-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US7210640B2 (en) | 2001-11-30 | 2007-05-01 | Caterpillar Inc | Fuel injector spray alteration through a moveable tip sleeve |
US20030102389A1 (en) * | 2001-11-30 | 2003-06-05 | Clarke John M. | Method and apparatus to control a movable tip sleeve |
FR2870569B1 (fr) * | 2004-05-19 | 2006-07-21 | Renault Sas | Dispositif injecteur de carburant pour moteur a combustion interne a allumage commande |
FR2874974A1 (fr) * | 2004-09-07 | 2006-03-10 | Renault Sas | Injecteur de carburant pour moteur diesel a injection directe |
CN100385109C (zh) * | 2005-01-18 | 2008-04-30 | 侯德洋 | 微位移变截面均匀细雾化复合式喷油器 |
DE102005025135A1 (de) * | 2005-06-01 | 2006-12-07 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE102006042444A1 (de) * | 2006-09-09 | 2008-03-27 | Bayerische Motoren Werke Ag | Kraftstoffeinspritzventil |
DE102007010349B4 (de) * | 2007-03-03 | 2009-07-09 | Lfk-Lenkflugkörpersysteme Gmbh | Ventilsteuereinheit für Staustrahlantrieb sowie Lenkflugkörper mit einer solchen Ventilsteuereinheit |
US20110297753A1 (en) | 2010-12-06 | 2011-12-08 | Mcalister Roy E | Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture |
JP5593797B2 (ja) * | 2010-04-08 | 2014-09-24 | トヨタ自動車株式会社 | 燃料噴射装置および燃料噴射ノズル |
JP5902024B2 (ja) * | 2011-04-15 | 2016-04-13 | 株式会社日本自動車部品総合研究所 | 燃料噴射制御システム |
US9903329B2 (en) | 2012-04-16 | 2018-02-27 | Cummins Intellectual Property, Inc. | Fuel injector |
US9200561B2 (en) | 2012-11-12 | 2015-12-01 | Mcalister Technologies, Llc | Chemical fuel conditioning and activation |
US8800527B2 (en) * | 2012-11-19 | 2014-08-12 | Mcalister Technologies, Llc | Method and apparatus for providing adaptive swirl injection and ignition |
US20140197245A1 (en) * | 2013-01-11 | 2014-07-17 | Andrew E. Meyer | Arrangement and method for preventing carbon formation in spray guiding structures |
US8820293B1 (en) | 2013-03-15 | 2014-09-02 | Mcalister Technologies, Llc | Injector-igniter with thermochemical regeneration |
US9562500B2 (en) | 2013-03-15 | 2017-02-07 | Mcalister Technologies, Llc | Injector-igniter with fuel characterization |
DE102014016264A1 (de) * | 2014-11-03 | 2016-05-04 | L'orange Gmbh | Kraftstoffinjektor |
CN106837639A (zh) * | 2017-04-13 | 2017-06-13 | 沈阳航空航天大学 | 一种近距离碰撞式双燃料发动机喷嘴组件 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610927C2 (de) * | 1976-03-16 | 1983-01-27 | Institut für Motorenbau Prof. Huber e.V., 8000 München | Einspritzdüse zur Kraftstoffeinspritzung in den Brennraum einer Brennkraftmaschine |
US4993643A (en) | 1988-10-05 | 1991-02-19 | Ford Motor Company | Fuel injector with variable fuel spray shape or pattern |
US5343699A (en) | 1989-06-12 | 1994-09-06 | Mcalister Roy E | Method and apparatus for improved operation of internal combustion engines |
IT223984Z2 (it) | 1990-01-17 | 1995-10-05 | Weber Srl | Valvola di un dispositivo di alimentazione di un motore a combustione interna |
JP2537983Y2 (ja) | 1990-12-21 | 1997-06-04 | 株式会社ゼクセル | 燃料噴射ノズル |
IT1250845B (it) | 1991-10-11 | 1995-04-21 | Weber Srl | Valvola dosatrice e polverizzatrice di carburante ad azionamento elettromagnetico per un dispositivo di alimentazione di un motore endotermico |
DE4303813C1 (de) | 1993-02-10 | 1994-06-30 | Bosch Gmbh Robert | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
DE19523165B4 (de) | 1994-06-29 | 2005-11-17 | Bosch Automotive Systems Corp. | Kraftstoffeinspritzdüse |
-
1997
- 1997-06-24 DE DE19726727A patent/DE19726727A1/de not_active Withdrawn
-
1998
- 1998-04-25 US US09/242,708 patent/US6186419B1/en not_active Expired - Fee Related
- 1998-04-25 JP JP11503521A patent/JP2000517030A/ja active Pending
- 1998-04-25 KR KR1019997001443A patent/KR20000068296A/ko not_active Application Discontinuation
- 1998-04-25 WO PCT/DE1998/001159 patent/WO1998059168A1/de not_active Application Discontinuation
- 1998-04-25 EP EP98932005A patent/EP0975870B1/de not_active Expired - Lifetime
- 1998-04-25 DE DE59809574T patent/DE59809574D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9859168A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2000517030A (ja) | 2000-12-19 |
DE19726727A1 (de) | 1999-01-07 |
WO1998059168A1 (de) | 1998-12-30 |
DE59809574D1 (de) | 2003-10-16 |
US6186419B1 (en) | 2001-02-13 |
EP0975870B1 (de) | 2003-09-10 |
KR20000068296A (ko) | 2000-11-25 |
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