EP0681104B1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP0681104B1 EP0681104B1 EP95105248A EP95105248A EP0681104B1 EP 0681104 B1 EP0681104 B1 EP 0681104B1 EP 95105248 A EP95105248 A EP 95105248A EP 95105248 A EP95105248 A EP 95105248A EP 0681104 B1 EP0681104 B1 EP 0681104B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- fuel injection
- injection valve
- main body
- gas
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 50
- 238000002347 injection Methods 0.000 title claims description 21
- 239000007924 injection Substances 0.000 title claims description 21
- 239000007921 spray Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000265 Polyparaphenylene Polymers 0.000 claims 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 1
- -1 polyphenylene Polymers 0.000 claims 1
- 239000007789 gas Substances 0.000 description 26
- 238000007789 sealing Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/08—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air
-
- 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
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
- F02M51/0678—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages all portions having fuel passages, e.g. flats, grooves, diameter reductions
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/047—Injectors peculiar thereto injectors with air chambers, e.g. communicating with atmosphere for aerating the nozzles
Definitions
- the invention is based on a fuel injector according to the genus of the main claim. It's already a Electromagnetically actuated valve for the injection of a Fuel-gas mixture in a mixture compression spark ignition internal combustion engine from WO 93/09344 known that a two-part attachment body on his has downstream end.
- the largely tubular The basic body is designed so that it is between itself and the nozzle body of the valve one or more Forms gas supply channels.
- a fuel to be sprayed Gas to be supplied flows through these gas supply channels and is then largely at right angles in flow openings flat insert part initiated.
- the circular Insert lies between the valve end and the Base body embedded and fixed in front and is from Radially completely enclosed base body.
- Injection valves (US Pat. No. 4,982,716) are also known, where an adapter is provided at the downstream end is formed in the air supply channels. Downstream a single spray opening is one in the adapter Baffle provided on which the hosed Fuel jet hits and film-like in two Spray channels is directed to the after Impact formed fuel films targeted air from the Air supply channels is directed. A measurement of the air can and will only take place via the air supply ducts inevitably determined by their cross sections.
- the fuel injector according to the invention with the has characteristic features of the main claim in contrast the advantage that a separation of functions from Gas supply and metering compared to the sealing of the Fuel injector to an intake line and the Attachment of the attachment body to the fuel injector is made so that each function is better for itself is guaranteed. It also results from the constructive Designing a large variety that is very simple and can be achieved inexpensively.
- the front body is in two parts, namely consisting of a tubular body and an in at least one slot opening of the base body insertable flat insert.
- the insert mainly for gas supply and metering responsible.
- Beam splitter can be provided, the double radiation of the Fuel injector maintained or reinforced.
- the insert part To ensure a clear installation position of the insert in the base body ensure it is favorable if the insert part one has a trapezoidal cross-section.
- the inflow cross section can be of different geometries and thus affect the gas throughput very easily and adjust to an optimum according to the requirements.
- a large variety of variants can be very easily achieve that for different specific applications only the Insert parts exchanged be, while the basic body is reusable. It So there is a modular system.
- 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 illustrated fuel injector
- Figure 2 an attachment body according to the invention
- Figure 3 shows a section along the line III-III in Figure 2
- Figure 4 is a section along the line IV-IV in Figure 3 according to a first Embodiment
- Figure 5 shows a section through the Attachment body according to a second embodiment
- Figure 6 is a perspective view of the front body.
- Valve 1 is a first exemplary embodiment Valve in the form of a fuel injector for Fuel injection systems from mixture compressors spark-ignited internal combustion engines partially shown. This is used together with an attachment body according to the invention Fuel injection valve for injecting a fuel-gas mixture into an intake pipe or directly into the Combustion chamber of the internal combustion engine.
- Fuel injector 1 extends concentrically along a valve longitudinal axis 2.
- the fuel injector 1 nozzle body 5 extending at the downstream end on.
- a stepped longitudinal bore 7 is in the nozzle body 5 formed, which is concentric with the valve longitudinal axis 2 runs and in which a z.
- B. needle-shaped Valve closing part 10 is arranged.
- the valve closing part 10 has, for example, two guide sections 11, 12, which together with a guide area 13 of the wall of the Longitudinal bore 7 of the nozzle body 5 of the guide of the Serve valve closing part 10.
- the longitudinal bore 7 of the Nozzle body 5 has one at its downstream end frustoconical in the direction of the fuel flow tapered fixed valve seat 15 which with a Direction of fuel flow in the shape of a truncated cone Sealing section 17 of the valve closing part 10 together Seat valve forms.
- Valve closing part 10 At its end facing away from the sealing section 17, this is Valve closing part 10 with a tubular armature 20 connected to the anchor 20 in the axial direction partially surrounding magnetic coil 22 and an armature 20th in the fixed valve seat 15 facing away opposite tubular core 23 of the Fuel injector 1 interacts.
- a return spring 25 On the one with the Armature 20 connected end of the valve closing part 10 is located a return spring 25 with one end that strives is, the valve closing part 10 in the direction of the fixed To move valve seat 15. Props with its other end the return spring 25 on a z.
- Spray plate 32 On an end face 30 of the core facing away from the core 23 Nozzle body 5 of fuel injector 1 is one Spray plate 32 on, for example, by a welded with laser welding Nozzle body 5 is connected.
- the spray plate 32 has For example, four spray openings 33 through which the with the valve closing part 10 lifted off on the valve seat 15 fuel flowing past is hosed down.
- an attachment body 50 provided for example from plastic.
- the use of recirculated exhaust gas enables a reduction of pollutant emissions Internal combustion engine.
- the supply of the gas up to the Attachment body 50 is not shown in detail in FIG. 1.
- the attachment body 50 is formed in two parts, one tubular base body 51 the downstream end of the Nozzle body 5 radially surrounds and for example by Snap is attached to this.
- the base body 51 also extends downstream in the axial direction the spray plate 32.
- a in the base body 51st insertable flat insert 52 is built in State immediately downstream of the orifice plate 32 arranged.
- the insert 52 is designed so that a Gas coming from outside the attachment body 50 into the Interior of the attachment body 50 directly downstream of the Spray plate 32 can flow. In addition to the supply of Gases takes over the insert 52 also the function of Measurement of the gas throughput by the resulting free Flow cross-section.
- the flow cross section for the gas in the insert part 52 tapers from the outer circumference Longitudinal valve axis 2 out, so that the gas accelerates strongly is and the emerging from the spray openings 33 and the insert 52 axially flowing fuel on the the gas hits vertically, is atomized particularly finely.
- the attachment body 50 is separated again in FIG of the injection valve as an independent component on average shown.
- the attachment body 50 is made up of two individual parts formed, namely by the tubular base body 51 and from the flat disc-shaped insert part 52, which in the Base body 51 can be inserted.
- the base body 51 consists of an upstream support section 54 and a downstream beam splitting section 55 together. While the support section 54 is a completely cylindrical Has a contour with a constant outside diameter Beam splitting section 55 three annular areas different outside diameter, which are concentric to the longitudinal axis 2 of the valve and axially on each other consequences.
- annular groove 58 Two radial to the same degree over the Ring portions 57 projecting from the carrier section 54 are used to form an annular groove 58 into which a sealing ring 59 for Sealing between the circumference of the injector and one Not shown valve holder, for example the Intake pipe of the internal combustion engine can be used can.
- the annular groove 58 is axial through the two ring areas 57 and radially delimited by a groove base 60, the one smaller diameter than the outer diameter of the Has carrier section 54, but for example the same is the same as the diameter of the inner wall of the tubular support section 54.
- the entire base body 51 is on the injection valve, specifically on the nozzle body 5 by snapping one in Carrier section 54 formed circumferentially, of the Inner wall radially in the direction of the valve longitudinal axis 2 extending and low height bead 62 in a circumferential groove 64 attached to the nozzle body 5 so that no danger of the connection being loosened by vibrations or temperature effects.
- Carrier section 54 formed circumferentially, of the Inner wall radially in the direction of the valve longitudinal axis 2 extending and low height bead 62 in a circumferential groove 64 attached to the nozzle body 5 so that no danger of the connection being loosened by vibrations or temperature effects.
- Selection of the bead 62 and the groove 64 can also be a complete security against rotation can be guaranteed.
- Means e.g. interlocking and interacting recesses or elevations on the bead 62 and in the groove 64 is the Anti-rotation lock reached.
- connection types of the attachment body 50 on the nozzle body 5 instead of snapping into place such as e.g. Gluing or shrinking, but the inseparable connections surrender.
- the attachment body is secured against rotation 50 by a knurl or surfaces in the bottom of the groove 64 am Nozzle body 5 possible.
- the carrier section 54 has two offset by 180 ° and thus exactly opposite areas of its circumference Slot openings 65 with a trapezoidal cross section through which the flat insert 52 is inserted.
- the slot openings 65 are exactly the same in the downstream End of the support section 54 introduced that the Insert part 52 on one of the upper ring area 57 radially inwardly extending shoulder 67, the axial Direction is thus viewed precisely in the level of the transition lies from the carrier section 54 to the beam splitting section 55, is moved along during insertion and then lies there.
- the insert 52 has the slot openings accordingly 65 also a trapezoidal cross-section with two flat side surfaces 68 to a defined installation position to guarantee. This can be done from the two slot openings 65 Insert 52 are inserted identically. Next the two flat side surfaces 68 of the insert part 52 that the trapezoidal cross-section is formed are two rounded side surfaces 69 provided on insert 52, which the outer contour of the insert 52 between the planes Complete side surfaces 68. This rounded Side surfaces 69 are designed so that they are the same Have radius as the base body 51 and thus in inserted state the base body 51 to the outside finish flush. The shape of the insert 52 will particularly in Figures 4 to 6 clearly.
- a beam splitter 72 it is appropriate in the beam splitting section 55 of the Basic body 51 to provide a beam splitter 72.
- Beam splitter 72 can be the most varied Have embodiments that depend on the desired beam angles and images can be selected can.
- the beam splitter 72 is shown in FIGS. 1 and 2 shown by way of example with a pointed cutting edge 73 which is directed toward the orifice plate 32, while starting from the cutting edge 73 of the beam splitter 72 in downstream direction becomes wider in cross section, so that it has a triangular cross section.
- the Double jet which is already through the spray openings 33 the spray plate 32 is generated, but by the intermediate gas supply can be impaired remains or is retained by the beam splitter 72 reinforced.
- the longitudinal valve axis 2 runs exactly in the center through the beam splitter 72, the beam splitter 72 is formed in one piece with the base body 51 and thus from a peripheral region of the beam splitting section 55 a circumferential region lying opposite one another, as shown in Figure 3.
- the beam splitter 72 divides one inner circular spray chamber 75 of the Beam splitting section 55 into two subspaces of equal size, if a symmetrical beam distribution is required.
- The is the radial direction of extent of the beam splitter 72 for example identical to the direction of insertion of the Insert part 52.
- On a beam splitter 72 in the base body 51 can of course also be dispensed with if one Multi-jet fuel is not required.
- FIG. 3 shows a section along the line III-III in of Figure 2, so that the attachment body 50 is now rotated by 90 ° compared to Figure 2 can be seen.
- This view will clearly that the beam splitter 72 completely the Spray chamber 75 divides and integrally with the base body 51 is trained.
- the insert Has 52 areas that extend in the axial direction extend different distances.
- To a medium one circular opening 77 extend from the rounded Side surfaces 69 starting from two tapered Inflow areas 78 which have a smaller axial extent have as from the flat side surfaces 68 to the opening 77 running boundaries 79.
- the inflow areas 78 completely surrounded channels for the Gas supply is the side of flanks 80 of the Limiting regions 79 and axially from an inflow floor 81 and the carrier section 54 or the spray perforated disk 32 be limited. It is also possible to replace the initially open inflow areas 78 are already complete to provide enclosed inflow channels in the insert part 52.
- the flanks 80 are the Boundary areas 79 executed spirally.
- the inflow area 78 tapers starting from one large cross section on the rounded side surfaces 69 to towards a very small cross section directly at the Opening 77.
- the swirling gas thus becomes strong accelerates, meets in the opening 77 from the Spray plate 32 coming fuel, so that also in Fuel-gas mixture contains a swirl component.
- Figure 6 shows a perspective view of the in the Figures 2 to 4 already with sectional views illustrated embodiment of the front body 50.
- this front body 50 an advantageous functional separation of gas supply, -Dimensioning and dosing against the sealing of the Fuel injector 1 to an intake line and the Attachment of the attachment body 50 on Fuel injector 1 reached.
- In addition to the variants for Formation of the inflow region 78 can also be the gas throughput by changing the diameter of the opening 77 in the Insert part 52 are calibrated.
- the base body 51 made of a non-glass fiber reinforced polyamide, the one has sufficient extensibility, manufactured.
- the insert 52 z. B. from a thermally stable, very precisely sprayable, highly reinforced plastic, such as Polyphenylene sulfide.
- highly reinforced plastic such as Polyphenylene sulfide.
- insert part 52 in the base body 51 proves to be such material pairing as cheap.
- the exemplary embodiments described are further Inflow geometries in insert 52 conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (10)
- Brennstoffeinspritzventil zur Einspritzung eines Brennstoff-Gas-Gemisches für Brennstoffeinspritzanlagen von Brennkraftmaschinen, mit einer Ventillängsachse (2), mit einem bewegbaren Ventilschließkörper (10), mit einem Düsenkörper (5), der einen mit dem Ventilschließkörper (10) zusammenwirkenden Ventilsitz (15) besitzt, mit wenigstens einer Abspritzöffnung (33) stromabwärts des Ventilsitzes (15), mit einem am stromabwärtigen Ende des Einspritzventils angeordneten Vorsatzkörper (50), der wenigstens ein Mittel zur Gaszufuhr aufweist und aus dem ein Brennstoff-Gas-Gemisch austritt, wobei der Vorsatzkörper (50) von einem sich axial erstreckenden, rohrförmigen Grundkörper (51) und einem flachen, in dem Grundkörper (51) stromabwärts der wenigstens einen Abspritzöffnung (33) angeordneten Einsatzteil (52) gebildet ist und im Einsatzteil (52) wenigstens ein zu einer Öffnung (77) führender Zuströmbereich (78) für das Gas ausgebildet ist, dadurch gekennzeichnet, daß der Grundkörper (51) wenigstens eine Schlitzöffnung (65) hat und das Einsatzteil (52) durch die wenigstens eine Schlitzöffnung (65) etwa quer zur Ventillängsachse (2) einschiebbar ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß sowohl der Grundkörper (51) als auch das Einsatzteil (52) aus einem Kunststoff gefertigt sind.
- Brennstoffeinspritzventil nach Anspruch 2, dadurch gekennzeichnet, daß der Grundkörper (51) aus einem nicht verstärkten Polyamid und das Einsatzteil (52) aus Polyphenylensulfid hergestellt sind.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß die Schlitzöffnungen (65) am Umfang des Grundkörpers (51) einen trapezförmigen Querschnitt besitzen.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß einteilig mit dem Grundkörper (51) ein Strahlteiler (72) stromabwärts des Einsatzteils (52) angeordnet ist.
- Brennstoffeinspritzventil nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß das Einsatzteil (52) einen trapezförmigen Querschnitt hat und durch ebene Seitenflächen (68) und abgerundete Seitenflächen (69) begrenzt wird.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß das Einsatzteil (52) zusätzlich zu den Zuströmbereichen (78) noch diese zumindest teilweise begrenzende Begrenzungsbereiche (79) besitzt, die eine unterschiedliche Ausdehnung in Richtung der Ventillängsachse (2) haben.
- Brennstoffeinspritzventil nach Anspruch 1 oder 7, dadurch gekennzeichnet, daß die Zuströmbereiche (78) zur Gaszufuhr und -zumessung dreieckförmig ausgestaltet sind und sich radial zur Ventillängsachse (2) hin verjüngen.
- Brennstoffeinspritzventil nach Anspruch 1 oder 7, dadurch gekennzeichnet, daß die Zuströmbereiche (78) zur Gaszufuhr und -zumessung spiralförmig ausgestaltet sind und sich radial zur Ventillängsachse (2) hin verjüngen.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß das Einsatzteil (52) durch eine Rastung im Grundkörper (51) fixiert ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4415992A DE4415992A1 (de) | 1994-05-06 | 1994-05-06 | Brennstoffeinspritzventil |
DE4415992 | 1994-05-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0681104A1 EP0681104A1 (de) | 1995-11-08 |
EP0681104B1 true EP0681104B1 (de) | 1998-12-02 |
Family
ID=6517449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95105248A Expired - Lifetime EP0681104B1 (de) | 1994-05-06 | 1995-04-07 | Brennstoffeinspritzventil |
Country Status (5)
Country | Link |
---|---|
US (1) | US5680992A (de) |
EP (1) | EP0681104B1 (de) |
JP (1) | JPH07301167A (de) |
DE (2) | DE4415992A1 (de) |
ES (1) | ES2125509T3 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6045054A (en) * | 1998-04-23 | 2000-04-04 | Siemens Automotive Corporation | Air shroud for air assist fuel injector |
US7021570B2 (en) * | 2002-07-29 | 2006-04-04 | Denso Corporation | Fuel injection device having injection hole plate |
JP2004210046A (ja) * | 2002-12-27 | 2004-07-29 | Toyota Motor Corp | 車輌用アンチスキッド制御装置 |
JP2007209493A (ja) * | 2006-02-08 | 2007-08-23 | Toto Ltd | 浴槽用ノズル及び浴槽装置 |
US8820665B2 (en) | 2007-09-25 | 2014-09-02 | S.C. Johnson & Son, Inc. | Fluid dispensing nozzle |
AU2009337337B2 (en) | 2009-01-19 | 2012-11-15 | Hochiki Corporation | Atomization Cooling Equipment and Atomizing Method |
US20100314470A1 (en) * | 2009-06-11 | 2010-12-16 | Stanadyne Corporation | Injector having swirl structure downstream of valve seat |
ITTO20110821A1 (it) * | 2011-09-14 | 2013-03-15 | Matrix Spa | Iniettore per un impianto di alimentazione di un combustibile gassoso ad un motore endotermico |
JP6411260B2 (ja) * | 2015-03-20 | 2018-10-24 | 愛三工業株式会社 | 気体燃料の供給通路構造 |
CN110973096B (zh) * | 2019-11-15 | 2021-09-21 | 深圳市华芯机器人技术有限责任公司 | 植保无人机用农药喷头 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3046890A1 (de) * | 1980-12-12 | 1982-07-15 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betaetigbares ventil, insbesondere kraftstoffeinspritzventil fuer kraftstoffeinspritzanlagen |
US4982716A (en) * | 1988-02-19 | 1991-01-08 | Toyota Jidosha Kabushiki Kaisha | Fuel injection valve with an air assist adapter for an internal combustion engine |
FR2635827B1 (fr) * | 1988-08-30 | 1993-11-26 | Solex | Dispositif d'injection de combustible a chambre d'aeration |
US5241938A (en) * | 1990-03-14 | 1993-09-07 | Aisan Kogyo Kabushiki Kaisha | Injector with assist air passage for atomizing fuel |
DE4035312A1 (de) * | 1990-11-07 | 1992-05-14 | Bosch Gmbh Robert | Vorrichtung zur einspritzung eines brennstoff-gas-gemisches |
DE4218896B4 (de) * | 1991-06-11 | 2006-01-19 | Denso Corp., Kariya | Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine |
US5174505A (en) * | 1991-11-01 | 1992-12-29 | Siemens Automotive L.P. | Air assist atomizer for fuel injector |
-
1994
- 1994-05-06 DE DE4415992A patent/DE4415992A1/de not_active Withdrawn
-
1995
- 1995-04-07 DE DE59504385T patent/DE59504385D1/de not_active Expired - Fee Related
- 1995-04-07 ES ES95105248T patent/ES2125509T3/es not_active Expired - Lifetime
- 1995-04-07 EP EP95105248A patent/EP0681104B1/de not_active Expired - Lifetime
- 1995-05-01 JP JP7107586A patent/JPH07301167A/ja not_active Abandoned
- 1995-05-08 US US08/436,543 patent/US5680992A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0681104A1 (de) | 1995-11-08 |
DE59504385D1 (de) | 1999-01-14 |
US5680992A (en) | 1997-10-28 |
DE4415992A1 (de) | 1995-11-09 |
JPH07301167A (ja) | 1995-11-14 |
ES2125509T3 (es) | 1999-03-01 |
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