WO2005042968A1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- WO2005042968A1 WO2005042968A1 PCT/EP2004/052604 EP2004052604W WO2005042968A1 WO 2005042968 A1 WO2005042968 A1 WO 2005042968A1 EP 2004052604 W EP2004052604 W EP 2004052604W WO 2005042968 A1 WO2005042968 A1 WO 2005042968A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevations
- fuel
- wall
- fuel injection
- injection valve
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/188—Spherical or partly spherical shaped valve member ends
-
- 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
- F02M61/168—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
- 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
Definitions
- the invention relates to a fuel injector according to the preamble of the main claim.
- No. 4,759,335 is known with a valve closing body, which cooperates with a sealing seat of a valve seat, and with a downstream of the sealing seat
- Fuel injector produces a spray, the average drop diameter of which for future use
- the fuel injector according to the invention with the characterizing features of the main claim has the advantage that the atomization is improved in a simple manner by arranging bumps or elevations influencing the fuel flow in the flow exit area. In this way, the average droplet diameter of the spray can be used without the need for additional auxiliary energy be reduced so that lower exhaust emissions can be achieved.
- the flow exit area is formed by a first wall and a second wall opposite the first wall, an outlet gap being formed between the first wall and the second wall, since the fuel jet flows out of the fuel injection valve in a defined manner in this way.
- the second wall ends with a second trailing edge after the first wall with a first trailing edge, since this represents a particularly simple embodiment.
- the elevations have a height measured perpendicular to a surface of the flow exit area, which is less than 100 micrometers and greater than the roughness peaks of the base area.
- the projections are arranged in the exit gap, since a so-called Karmann ⁇ specific vortex street is generated in this manner, the periodically detaching vortices create turbulence, so that the fuel spray as disintegrates into smaller droplets in the prior art. It is also advantageous if the elevations are arranged downstream of the first trailing edge, since in this way the fuel jet already breaks down into many individual jets with a large jet surface at the elevations.
- the elevations are cylindrical, tetrahedral, pyramid-shaped, conical, prismatic, cuboid, hemispherical or knob-shaped, since in this way a sufficiently large amount of turbulence can be generated in the fuel jet emerging from the fuel injection valve to cover the surface of the fuel jet Excite vibrations and thereby atomize the fuel jet into very small drops.
- the height of the elevations increases or decreases continuously or step-wise downstream, since the fuel jet is split into many individual jets at the elevations, which then collide less frequently downstream with other individual jets.
- the elevations are arranged in rows provided transversely to the flow, the rows being provided, for example, offset from one another.
- FIG. 1 shows a first exemplary embodiment of a fuel injection valve
- FIG. 2 shows a partial plan view of the first exemplary embodiment
- FIG. 3 shows a second exemplary embodiment
- FIG. 4 shows a third exemplary embodiment
- FIG. 5 shows a partial plan view of the third exemplary embodiment
- FIG. 7 a fifth exemplary embodiment
- FIG. 8 a so-called A valve
- FIG. 9 a so-called I valve.
- Fig.l shows simplified a first embodiment of a fuel injector designed according to the invention.
- the fuel injector is used to atomize fuel as a spray to reduce fuel consumption and exhaust emissions.
- the fuel is injected, for example, in the so-called intake manifold injection into an intake pipe or in the so-called direct injection directly into a combustion chamber of the internal combustion engine.
- the fuel injector has a valve housing 1 with an inlet channel 2 for the fuel.
- a schematically represented actuator 3 for the axial adjustment of a valve needle 4 is arranged in the valve housing 1.
- the actuator 3 is, for example, one with an excitable coil interacting magnetic armature, a hydraulic element, a piezo actuator or the like.
- the valve needle 4 is axially movable in the valve housing 1 and has, for example, a needle shaft 7 facing the actuator 3 and a valve closing body 8 facing away from the actuator 3.
- the actuator 3 transmits its movement directly or indirectly to the needle shaft 7 of the valve needle 4, as a result of which the valve closing body 8 interacting with a valve seat 9
- Fuel injection valve opens or closes in the direction of a valve axis 5.
- the fuel injection valve has, for example, a so-called spherical conical seat, the valve seat 9 being, for example, conical and the valve closing body 8 having a spherical or radial section 10 which interacts with the valve seat 9.
- the fuel injector can of course also have a different design, for example a ball-ball seat, a cone-cone seat or a cone-ball seat.
- the valve closing body 8 lies tightly over its entire circumference on the valve seat 9 with line or surface contact, which is referred to below as the sealing seat 11.
- Flow exit area 14 from which the fuel is admixed as a so-called free jet to the air drawn in by the internal combustion engine.
- the flow exit area 14 is through a first
- Wall 15 and a second wall 16 opposite the first wall 15 are formed, an outlet gap 17 being formed between the first wall 15 and the second wall 16, through which the fuel 20 flows out when the fuel injection valve is open.
- the first wall 15 extends from the sealing seat 11 to a first trailing edge 18 and the second wall 16 extends from the sealing seat 11 in the direction of flow to a second trailing edge 19.
- the first wall 15 and the second wall 16 can, for example, be connected to one another in one piece or can also be provided on a separate part in each case.
- the outlet gap 17 is designed as a closed flow channel, the cross section of which can have any shape, for example circular, ring-shaped or rectangular.
- the second wall 16 with the second trailing edge 19 ends on the side facing away from the sealing seat 11 downstream of the first trailing edge 18 of the first wall 15.
- the first trailing edge 18 and the second trailing edge 19 can of course also lie in a same plane perpendicular to the valve axis 5.
- the fuel flow protrude into it and influence or disrupt it in this way.
- the elevations 22 are opposite a base surface 23 of the base wall, for example formed on the second wall 16
- the flow exit area 14 is raised and has a height measured perpendicular to the base 23, which is, for example, less than 100 micrometers and greater than the height of the roughness peaks of the base 23.
- the elevations 22 can be arranged side by side as desired, for example in one or more rows 24 which are transverse to the flow (FIG. 2).
- the rows 24 are arranged one behind the other as seen in the direction of flow, with the elevations 22 of a row 24, for example the elevations 22 of the adjacent rows 24 are arranged offset from one another.
- the elevations 22 can be arranged in the outlet gap 17 and / or with the second trailing edge 19 lying downstream, downstream of the first trailing edge 18.
- the elevations 22 can be provided on the first wall 15 and / or on the second wall 16.
- the elevations 22 protrude from one of the two walls 15, 16 into the outlet gap 17 and can extend as far as the opposite wall 15, 16.
- the bumps or elevations 22 are, for example, cylindrical, tetrahedral, pyramidal, conical, prismatic, cuboid, hemispherical, knob-shaped or similar.
- the elevations 22 can be aligned with the flow as desired, for example the elevations 22 can be aligned with an edge or a surface in the direction of the flow.
- Pyramids and tetrahedra have a streamlined shape that avoids or at least reduces flow turbulence on the downstream side, so that little or no deposits occur on the downstream side of the pyramids or tetrahedra.
- the fuel is conducted in the valve housing 1 starting from the inlet channel 2 to the valve closing body 8 upstream of the sealing seat 11.
- Fuel injection valve lifts the valve closing body 8 from the sealing seat 11, so that fuel flows through an outlet opening formed between the valve closing body 8 and the valve seat 9 into the fuel jet Outlet gap 17 of the flow outlet region 14 flows out.
- Flow exit area 14 of the fuel injection valve downstream of the second trailing edge 19 as a complete free jet and breaks down into many small individual drops. The smaller the average drop diameter, the lower the consumption of the internal combustion engine and the lower the exhaust gas emissions.
- the fuel jet emerging through the outlet gap 17 when the fuel injection valve is open flows around and / or overflows the elevations 22, considerable turbulence being generated in the flow, which excite vibrations on the surface of the fuel jet. Due to the vibrations on the surface of the fuel jet, the fuel jet breaks up into particularly small drops. This improvement in atomization is achieved without using additional energy.
- the arrangement of the elevations 22 in the flow exit area 14 is therefore a simple and inexpensive way of producing smaller drop diameters than in the prior art.
- the fuel jet is already divided into many individual jets when flowing around and / or overflowing the elevations 22, since the flow follows the oblique surfaces transversely to Main flow is deflected and tears off at the downstream edges of the elevations 22 as a free jet.
- the individual jets generated on the elevations 22 have a larger jet surface overall than the fuel jet upstream of the elevations 22.
- the elevations 22 are also produced, for example, by roughening, sandblasting, roller burnishing, micro-embossing, laser ablation, etching, micro-electroplating or applying a coating.
- FIG. 2 shows, in a plan view, a simplified partial view of the first exemplary embodiment according to FIG.
- the parts that remain the same or have the same effect as the fuel injector according to FIG. 1 are identified by the same reference numerals.
- FIG 3 shows in a partial section, simplified, a second exemplary embodiment of a fuel injection valve.
- the fuel injector according to FIG. 3 differs from the fuel injector according to FIG. 1 in that the elevations 22 are not designed as pyramids but as cylinders.
- FIG. 4 shows a third exemplary embodiment of a fuel injection valve in simplified form in a partial section.
- the fuel injection valve according to FIG. 4 differs from the fuel injection valve according to FIG. 1 in that the elevations 22 are not designed as pyramids but as tetrahedra.
- the height of the elevations 22, for example the tetrahedron, can decrease or increase gradually or continuously in the flow direction. Since the individual beams 26 tearing off at the elevations 22 tear off as a free jet at different distances from the base area 23, there are few collisions between the individual beams 26, so that these are retained and have a large surface area.
- the height of the elevations 22 of a row 24 is constant, for example, but can also be changed, for example according to a sine curve.
- FIG. 5 shows, in a top view, a simplified partial view of the third exemplary embodiment according to FIG.
- the parts that remain the same or have the same effect as the fuel injection valve according to FIG. 1 are identified by the same reference numerals.
- FIG. 6 shows, in a partial section, a fourth exemplary embodiment of a fuel injector in a simplified manner.
- the parts that are the same or have the same effect as the fuel injection valve according to FIGS. 1 to 5 are identified by the same reference numerals.
- the fuel injector according to FIG. 6 differs from the fuel injector according to FIG. 1 in that the elevations 22 are designed as knobs.
- the elevations 22 are applied galvanically, for example, as a structural layer 25.
- the structural layer 25 consists of a flat layer 26 on which, for example, hemispherical elevations 22 are provided.
- the structure layer 25 is made of chrome, for example. The diameter of the hemispherical
- Elevations 22 are, for example, between 0 and 30 micrometers.
- the structure layer 25 can be produced, for example, by means of a known structure chromium process.
- the thickness of the structural layer 25 continuously decreases, for example, at an edge of the structural layer 25 facing the sealing seat 11, in order to avoid a step that disturbs the fuel flow.
- the production of the structural layer 25 does not require high-precision machining of the surface and is therefore simple and inexpensive.
- FIG. 7 shows in a partial section, simplified, a fifth exemplary embodiment of a fuel injector.
- the parts that are the same or have the same effect as the fuel injection valve according to FIGS. 1 to 6 are identified by the same reference numerals.
- the fuel injector according to FIG. 7 differs from the fuel injector according to FIG. 1 in that the elevations 22 in the outlet gap 17 of the
- Flow exit area 14 are arranged and extend from the first wall 15 to the second wall 16.
- a so-called vortex trail is formed in the flow downstream of each elevation 22, which is also referred to as Karmann ⁇ see vortex street.
- vortices periodically detach from each elevation 22 in the
- FIG. 8 shows a simplified so-called A-valve
- Valve closing body 8 performs a stroke seen in the flow direction to the outside.
- the first wall 15 on the valve seat 9 and the second wall 16 is at the t
- Valve closing body 8 formed.
- the valve closing body 8 widens from an end of the needle shaft 7 facing away from the actuator 3 in the flow direction up to the second trailing edge 19, which is downstream in the flow direction compared to the first trailing edge 18 formed on the valve seat 9.
- the valve seat 9 widens downstream of the sealing seat 11 up to the first trailing edge 18.
- the outlet gap 17 is provided between the valve closing body 8 and the valve seat 9.
- the elevations 22 are provided, for example, on the valve closing body 8 downstream of the sealing seat 11 and upstream of the second trailing edge 19 and / or on the valve seat 9 downstream of the sealing seat 11 and upstream of the first trailing edge 18.
- FIG. 9 shows in simplified form a so-called I-valve, the valve closing body 8 of which carries out a stroke against the flow direction inwards.
- the first wall 15 and the second wall 16, which are formed on a valve seat body 31, form the outlet gap 17 which is designed as a flow channel.
- the flow channel downstream of the valve seat is, for example, cylindrical in a first region 29 and then widens in a second Area 30 conical in the direction of flow.
- the first trailing edge 18 and the second trailing edge 19 lie in one plane.
- the elevations 22 are arranged, for example, in the second region 30.
- the fuel injection valve When the fuel injection valve is open, the fuel is set into rotation, for example by means of a swirl disk, not shown, so that the flow entering the outlet gap 17 forms a rotationally symmetrical lamella due to the centrifugal force and flows along the first wall 15 and the second wall 16.
- the fuel flows around and overflows the elevations 22 and is atomized downstream of the elevations 22.
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
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04791271A EP1682773A1 (de) | 2003-10-29 | 2004-10-21 | Brennstoffeinspritzventil |
JP2006537281A JP2007509285A (ja) | 2003-10-29 | 2004-10-21 | 燃料噴射弁 |
US10/577,801 US20080035130A1 (en) | 2003-10-29 | 2004-10-21 | Fuel Injector |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10350548A DE10350548A1 (de) | 2003-10-29 | 2003-10-29 | Brennstoffeinspritzventil |
DE10350548.2 | 2003-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005042968A1 true WO2005042968A1 (de) | 2005-05-12 |
Family
ID=34529887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/052604 WO2005042968A1 (de) | 2003-10-29 | 2004-10-21 | Brennstoffeinspritzventil |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080035130A1 (de) |
EP (1) | EP1682773A1 (de) |
JP (1) | JP2007509285A (de) |
DE (1) | DE10350548A1 (de) |
WO (1) | WO2005042968A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006072521A1 (de) * | 2004-12-29 | 2006-07-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für brennkraftmaschinen |
WO2008028786A1 (de) * | 2006-09-05 | 2008-03-13 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP1900933A3 (de) * | 2006-09-09 | 2010-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoffeinspritzventil |
WO2013160037A1 (de) * | 2012-04-26 | 2013-10-31 | Robert Bosch Gmbh | Vorrichtung zur einspritzung von kraftstoff und verfahren zur herstellung einer derartigen vorrichtung |
CN105484919A (zh) * | 2016-01-14 | 2016-04-13 | 江苏大学 | 一种微扰动外扩型喷孔的喷油嘴 |
CN105526035A (zh) * | 2016-01-14 | 2016-04-27 | 江苏大学 | 一种喷孔内具有微凸起结构的喷油嘴 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9840992B2 (en) * | 2015-03-06 | 2017-12-12 | Elwha Llc | Fuel injector system and method for making air-filled diesel droplets |
DE102019104294A1 (de) * | 2018-03-15 | 2019-09-19 | Denso Corporation | Korrosionsbeständige Vorrichtung |
DE102022122501A1 (de) | 2022-09-06 | 2024-03-07 | Zf Cv Systems Europe Bv | Ventil eines Kompressors oder einer Pumpe |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4759335A (en) | 1985-07-19 | 1988-07-26 | Orbital Engine Company Proprietary Limited | Direct fuel injection by compressed gas |
US5058810A (en) * | 1988-06-23 | 1991-10-22 | Weber S.R.L. | Fuel metering and atomizing valve for an internal combustion engine fuel supply device |
EP0551633A1 (de) * | 1992-01-14 | 1993-07-21 | Robert Bosch Gmbh | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
EP0692625A1 (de) * | 1994-07-15 | 1996-01-17 | New Sulzer Diesel AG | Düsenkopf für eine Brennstoffeinspritzdüse und Verfahren zum Einspritzen von Brennstoff in einen Verbrennungsmotor |
US5924634A (en) * | 1995-03-29 | 1999-07-20 | Robert Bosch Gmbh | Orifice plate, in particular for injection valves, and method for manufacturing an orifice plate |
US20020100821A1 (en) * | 2001-01-30 | 2002-08-01 | Unisia Jecs Corporation | Fuel injection valve |
US20030141387A1 (en) * | 2002-01-31 | 2003-07-31 | Min Xu | Fuel injector nozzle assembly with induced turbulence |
US20030164412A1 (en) * | 2002-03-04 | 2003-09-04 | Aisan Kogyo Kabushiki Kaisha | Orifice plate |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1341478A (en) * | 1919-02-12 | 1920-05-25 | Joseph Reid Gas Engine Company | Internal-combustion engine |
US4057190A (en) * | 1976-06-17 | 1977-11-08 | Bendix Corporation | Fuel break-up disc for injection valve |
DE3301559C2 (de) * | 1983-01-19 | 1986-06-12 | Daimler-Benz Ag, 7000 Stuttgart | Stabglühkerze für eine luftverdichtende Brennkraftmaschine |
US4528070A (en) * | 1983-02-04 | 1985-07-09 | Burlington Industries, Inc. | Orifice plate constructions |
US4796816A (en) * | 1987-09-21 | 1989-01-10 | Gregory Khinchuk | Impinging-jet fuel injection nozzle |
US4932374A (en) * | 1989-06-21 | 1990-06-12 | General Motors Corporation | Fuel injector nozzle for internal combustion engine |
US5613471A (en) * | 1995-01-05 | 1997-03-25 | Yaoita; Yasuhito | Diesel engine using fuel jet impingement and diffusion |
US5685491A (en) * | 1995-01-11 | 1997-11-11 | Amtx, Inc. | Electroformed multilayer spray director and a process for the preparation thereof |
EP0787254B1 (de) * | 1995-03-29 | 2002-06-12 | Robert Bosch Gmbh | Lochscheibe, insbesondere für einspritzventile |
JP3134813B2 (ja) * | 1997-06-20 | 2001-02-13 | トヨタ自動車株式会社 | 内燃機関の燃料噴射弁 |
DE102004005526B4 (de) * | 2003-02-05 | 2022-03-31 | Denso Corporation | Kraftstoffeinspritzvorrichtung einer Brennkraftmaschine mit innerer Verbrennung |
KR100468207B1 (ko) * | 2003-08-14 | 2005-01-26 | 곽쌍신 | 연료분사장치 |
-
2003
- 2003-10-29 DE DE10350548A patent/DE10350548A1/de not_active Withdrawn
-
2004
- 2004-10-21 EP EP04791271A patent/EP1682773A1/de not_active Withdrawn
- 2004-10-21 US US10/577,801 patent/US20080035130A1/en not_active Abandoned
- 2004-10-21 WO PCT/EP2004/052604 patent/WO2005042968A1/de active Application Filing
- 2004-10-21 JP JP2006537281A patent/JP2007509285A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4759335A (en) | 1985-07-19 | 1988-07-26 | Orbital Engine Company Proprietary Limited | Direct fuel injection by compressed gas |
US5058810A (en) * | 1988-06-23 | 1991-10-22 | Weber S.R.L. | Fuel metering and atomizing valve for an internal combustion engine fuel supply device |
EP0551633A1 (de) * | 1992-01-14 | 1993-07-21 | Robert Bosch Gmbh | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
EP0692625A1 (de) * | 1994-07-15 | 1996-01-17 | New Sulzer Diesel AG | Düsenkopf für eine Brennstoffeinspritzdüse und Verfahren zum Einspritzen von Brennstoff in einen Verbrennungsmotor |
US5924634A (en) * | 1995-03-29 | 1999-07-20 | Robert Bosch Gmbh | Orifice plate, in particular for injection valves, and method for manufacturing an orifice plate |
US20020100821A1 (en) * | 2001-01-30 | 2002-08-01 | Unisia Jecs Corporation | Fuel injection valve |
US20030141387A1 (en) * | 2002-01-31 | 2003-07-31 | Min Xu | Fuel injector nozzle assembly with induced turbulence |
US20030164412A1 (en) * | 2002-03-04 | 2003-09-04 | Aisan Kogyo Kabushiki Kaisha | Orifice plate |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006072521A1 (de) * | 2004-12-29 | 2006-07-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für brennkraftmaschinen |
WO2008028786A1 (de) * | 2006-09-05 | 2008-03-13 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP1900933A3 (de) * | 2006-09-09 | 2010-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoffeinspritzventil |
WO2013160037A1 (de) * | 2012-04-26 | 2013-10-31 | Robert Bosch Gmbh | Vorrichtung zur einspritzung von kraftstoff und verfahren zur herstellung einer derartigen vorrichtung |
CN105484919A (zh) * | 2016-01-14 | 2016-04-13 | 江苏大学 | 一种微扰动外扩型喷孔的喷油嘴 |
CN105526035A (zh) * | 2016-01-14 | 2016-04-27 | 江苏大学 | 一种喷孔内具有微凸起结构的喷油嘴 |
Also Published As
Publication number | Publication date |
---|---|
US20080035130A1 (en) | 2008-02-14 |
EP1682773A1 (de) | 2006-07-26 |
JP2007509285A (ja) | 2007-04-12 |
DE10350548A1 (de) | 2005-06-02 |
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