EP1526274A1 - Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung - Google Patents
Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung Download PDFInfo
- Publication number
- EP1526274A1 EP1526274A1 EP20040021298 EP04021298A EP1526274A1 EP 1526274 A1 EP1526274 A1 EP 1526274A1 EP 20040021298 EP20040021298 EP 20040021298 EP 04021298 A EP04021298 A EP 04021298A EP 1526274 A1 EP1526274 A1 EP 1526274A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- valve body
- injection device
- fuel injection
- fuel
- 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
- 239000000446 fuel Substances 0.000 title claims description 81
- 238000002347 injection Methods 0.000 title claims description 31
- 239000007924 injection Substances 0.000 title claims description 31
- 238000002485 combustion reaction Methods 0.000 title claims description 9
- 238000007789 sealing Methods 0.000 claims description 31
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009715 pressure infiltration 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
- 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
- F02M61/042—The valves being provided with fuel passages
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
- F02M45/086—Having more than one injection-valve controlling discharge 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
- F02M61/04—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
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
-
- 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
- F02M61/161—Means for adjusting injection-valve lift
-
- 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
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
-
- 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
- F02M61/167—Means for compensating clearance or thermal expansion
Definitions
- the invention relates to a fuel injection device, especially for one Internal combustion engine with direct injection, with a Housing and at least two arranged in the housing and mutually coaxial valve elements, each of which at least one fuel outlet is associated, with a valve elements in the closing direction acting biasing device, and with each at least one pressure surface acting in the opening direction at the valve elements, the pressure surfaces respectively to limit a pressure chamber, which with a high-pressure connection can be connected.
- a fuel injection device of the aforementioned Art is known from DE 40 23 223 A1.
- This one shows Fuel injector with a housing in which two are guided to each other coaxial valve elements.
- Both Valve elements are each a series of fuel outlet openings assigned, and both valve elements are counteracted by means of screw compression springs with sealing edges corresponding housing-side valve seats pressed.
- the pressure is in a pressure chamber, by an in Opening direction acting pressure surface of the outer Valve element is limited increased. This raises this against the force of the spring from the valve seat, so that Fuel through its associated fuel outlet channels can escape.
- the outside Valve element has lifted, is also the inner Valve element associated pressure surface with high pressure applied.
- the pressure of the Fuel is also opens the inner valve element against the force of the compression spring.
- Such fuel injectors are also called "Coaxial vario nozzles". With them, depending on Fuel quantity to be injected a different Fuel outlet cross section provided become. This has the advantage that even if only one small amount of fuel is to be injected, this can be atomized comparatively well.
- the present invention has the object, a fuel injection device of the type mentioned above to further that one operated with her Internal combustion engine a particularly good emission behavior shows.
- the inner valve element comprises at least: a valve body, with a housing-side Valve seat cooperates, and a guide body, the is guided in the outer valve element and the Valve body normally applied in the closing direction, being between the valve body and the outer Valve element, a radial gap is present.
- the fuel injection device according to the invention be in an internal combustion engine significantly improves the HC values in the exhaust gas. This depends together that in the fuel injection device according to the invention reliably prevents that inner valve element at an opening or Closing movement of the outer valve element unintentionally opens and thereby small amounts of fuel from the fuel injection device escape.
- the Fuel injection device is inner valve element in a guide body and a Divided valve body.
- the valve body is that area the valve element, with the housing-side valve seat working together and ultimately through his movement the Flow path of the fuel to the corresponding Fuel outlet opens or blocks.
- a radial gap is present, so that the outer Valve element, in particular during its closing operation no lateral forces can transfer to this valve body (The outer valve element contacts the valve body of inner valve element so not). These lateral forces could lead to a tilting of the inner valve element and subsequently to a reduced seal between inner valve element and housing lead. Instead, it is the inner valve element via a guide body in outer valve element which guides the valve body in Closing direction acted upon.
- the guide body a Guide and sealing portion has, which in the vicinity the valve body is formed and in the outer Valve element is slidably guided and fluid-tight.
- the Guide body has a guide and sealing portion, which is formed away from the valve body and in outer valve element is slidably guided and fluid-tight. This corresponds to the embodiment in conventional Fuel injectors, what the realization reduces the invention to be made changes and the Manufacturing costs keeps low.
- a particularly advantageous embodiment of Fuel injection device according to the invention draws characterized in that in a valve body facing End face of the guide body with a Leakage connection connected leakage channel opens. hereby is a "pressure infiltration" avoided. Below this is understood that the area where the guide body and the valve body abut, with high pressure is applied, whereby a deliberate opening of the inner Valve element or the valve body below Prevented or at least delayed.
- the Leakage channel at its end facing away from the valve body in an annular space opens, between the inner and the outer valve element is formed. It goes without saying that this annulus on that side of the leadership and Sealing section must be present, of the Fuel outlet channels facing away.
- Such a Leakage channel can be simple, because of this Annular space usually anyway with a leakage connection connected is. This keeps the manufacturing costs low.
- the guide body and the valve body only approximately linear with a circumferential and with respect to the valve body radially outside touch lying sealing edge. By such linear contact becomes locally high Surface pressure achieved by the high sealing effect can be realized. This will be a Pressurization facing away from the valve seat Front surface of the valve body prevents or at least reduces what the functional reliability in particular of the inner valve element increases.
- a particularly advantageous embodiment of the fuel injection device is also characterized by the fact that the valve body has a rounded sealing surface, which cooperates with a housing-side seat edge. This allows so-called “runout tolerances” in one be compensated to certain extent, which the Production costs and thus also the production costs can lower.
- the "runout tolerances” are around angular deviations of the contact surface between the Valve body and the guide body from one to Longitudinal axis orthogonal plane.
- a fuel system carries the whole Reference numeral 10. It is used to supply a Internal combustion engine with fuel, which, however, in Figure 1 not shown in detail.
- To the fuel system 10 includes a reservoir 12, from a conveyor 14, the fuel to a Fuel rail ("rail") 16 promotes.
- the Conveyor 14 compresses the fuel while a very high pressure, in which he is in the fuel manifold 16 is stored.
- the latter are several Fuel injectors 18 connected, from which only two are shown in Figure 1. These inject the fuel in each one directly to them associated combustion chamber 20 of the internal combustion engine.
- a leakage port 24 leads from the fuel injectors 28 via a Leakage line 26 to the reservoir 12 back.
- FIG. 2 and 3 show one of the fuel injectors 18 more in detail: it includes a housing 28, of which in FIG. 2 only one nozzle body 30 and a portion of an end piece 32 are shown.
- Nozzle body 30 is a generally cylindrical and in Longitudinally extending recess 34 is present.
- an outer valve element 36 sliding and guided fluid-tight.
- a through hole 38 is present, into which an inner Valve element 40 is inserted.
- This consists of one Guide body 42 and a valve body 44th
- the outer valve element 36 has on its outer Lateral surface on a circumferential shoulder, which has a in Opening direction acting pressure surface 46 forms. These defines an annular pressure space 48 in the wall the recess 34 is formed and via a High-pressure passage 50 connected to the high-pressure port 22 is.
- At the lower end in Figures 2 and 3 of the outer Valve element 36 is also one in the opening direction acting pressure surface 52 present ( Figure 3), the one Pressure chamber 54 limited, the one between the outer Valve element 36 and the wall of the recess 34 formed Annular space 56 with the pressure chamber 48 and thus ultimately is connected to the high pressure port 22.
- the Pressure surface 52 is radially inward of a sealing edge 58 bounded with an opposite conical Seat surface 60, which is present on the nozzle body 30, cooperates.
- the outer valve element 36 is of a compression spring 61, which is supported on the end piece 32, in Direction seat 60 acted upon.
- the outer one Valve element 36 is a series of fuel exit channels 62 assigned.
- the guide body 42 of the inner valve member 40th it is an elongate bolt-like part, which has a smaller outer diameter overall as the inner diameter of the through hole 38 in outer valve element 36.
- Am in in Figure 2 lower end of the Guide body 42 is a leadership and Sealing section 64 present over which the guide body 42nd is guided in the outer valve element 36.
- the valve body 44 includes a cylindrical central portion 66, a follow this, tapering off Seal portion 68, and a tapered end portion 70th Between the central portion 66 and the recess 38 in outer valve element 36 is a radial gap in Figure 3 71 visible.
- a leakage channel 79 leads from the end face 78 of the guide body 42 through the Guide body 42 obliquely through and opens into a Radial wall surface of the guide body 42, in FIG. 2 above the guide and sealing section 64 in FIG one between the guide body 42 and the recess 34th formed annulus 77th This is ultimately on the Leakage port 24 connected to the leakage line 26.
- the sealing section 68 has a rounded sealing surface 80 on ( Figure 3), which a ring segment of the surface corresponds to a ball and a pressure chamber 81 limited.
- One Center 82 of this ball lies on a central axis 84 of the inner valve element 40.
- the sealing surface 80 of Valve body 44 cooperates with a seat edge 86, in the wall of the recess 34 in the nozzle body 30th is trained.
- the inner valve element 40 is of a Compression spring 88, which is also supported on the end piece 32, acted upon against the seat edge 86.
- the inner Valve element 40 is also a series of fuel triplet channels 90 assigned.
- the fuel injector 18 operates as follows:
- the pressure which then also prevails in the pressure chamber 81, is sufficient in this case, however, not to be at the radially outside from the seat edge 86 lying region of the sealing surface 80th the valve body 44 such in the opening direction to produce an effective force, that also the inner one Valve element 40 against the force of the spring 88 opens.
- Out the fuel outlet channels 90 can thus no Leak fuel.
- the valve body 44 from outer valve element 36 is not touched (gap 71), this can neither during the opening process nor during the closing process, lateral forces on the valve body 44 transmitted.
- the outer valve element 36 can therefore also induce no tilting movement of the valve body 44 through the sealing surface 80 at least partially from the Seat edge 86 lift off and thus the exit of a small Fuel quantity would result.
- FIG. 1 An alternative embodiment of a fuel injection device 18 is shown in FIG. there carry such elements and areas, which are equivalent Functions to elements and areas of the previous one Figures have the same reference numerals.
- Figure 5 Fuel injection device 18 to that of Figure 2 relates to the arrangement of the guiding and sealing portion 64 on the outer valve element 36:
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
- Figur 1
- eine schematische Darstellung eines Kraftstoffsystems einer Brennkraftmaschine mit mehreren Kraftstoff-Einspritzvorrichtungen;
- Figur 2
- eine teilweise geschnittene Darstellung einer der Kraftstoff-Einspritzvorrichtungen von Figur 1;
- Figur 3
- eine Detailansicht III von Figur 2;
- Figur 4a
- ein Diagramm, in dem der Hub eines äußeren Ventilelements der Kraftstoff-Einspritzvorrichtung von Figur 2 über der Zeit aufgetragen ist;
- Figur 4b
- ein Diagramm ähnlich Figur 4a für ein inneres Ventilelement; und
- Figur 5
- eine Darstellung ähnlich Figur 2 einer alternativen Ausführungsform einer Kraftstoff-Einspritzvorrichtung.
Claims (9)
- Kraftstoff-Einspritzvorrichtung (18), insbesondere für eine Brennkraftmaschine mit Direkteinspritzung, mit einem Gehäuse (28) und mindestens zwei in dem Gehäuse (28) angeordneten und zueinander koaxialen Ventilelementen (36, 40), denen jeweils mindestens eine Kraftstoff-Austrittsöffnung (62, 90) zugeordnet ist, mit einer die Ventilelemente (36, 40) in Schließrichtung beaufschlagenden Vorspanneinrichtung (61, 88), und mit jeweils mindestens einer in Öffnungsrichtung wirkenden Druckfläche (46, 52, 80) an den Ventilelementen (36, 40), wobei die Druckflächen (36, 52, 80) jeweils einen Druckraum (48, 54, 81) begrenzen, der mit einem Hochdruckanschluss (22) verbunden werden kann, dadurch gekennzeichnet, dass das innere Ventilelement (40) mindestens umfasst: einen Ventilkörper (44), der mit einem gehäuseseitigen Ventilsitz (86) zusammenarbeitet, und einen Führungskörper (42), der in dem äußeren Ventilelement (36) geführt ist und der den Ventilkörper (44) im Normalfall in Schließrichtung beaufschlagt, wobei zwischen dem Ventilkörper (44) und dem äußeren Ventilelement (36) ein radialer Spalt (71) vorhanden ist.
- Kraftstoff-Einspritzvorrichtung (18) nach Anspruch 1, dadurch gekennzeichnet, dass der Führungskörper (42) einen Führungs- und Dichtabschnitt (64) aufweist, welcher in der Nähe des Ventilkörpers (44) ausgebildet ist und im äußeren Ventilelement (36) gleitend und fluiddicht geführt ist.
- Kraftstoff-Einspritzvorrichtung (18) nach Anspruch 1, dadurch gekennzeichnet, dass der Führungskörper (42) einen Führungs- und Dichtabschnitt (64) aufweist, welcher vom Ventilkörper (44) entfernt ausgebildet ist und im äußeren Ventilelement (36) gleitend und fluiddicht geführt ist.
- Kraftstoff-Einspritzvorrichtung (18) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in eine dem Ventilkörper (44) zugewandte Stirnfläche (78) des Führungskörpers (42) ein mit einem Leckageanschluss (24) verbundener Leckagekanal (79) mündet.
- Kraftstoff-Einspritzvorrichtung (18) nach Anspruch 4, dadurch gekennzeichnet, dass der Leckagekanal (79) an seinem vom Ventilkörper (44) abgewandten Ende in einen Ringraum (77) mündet, der zwischen dem inneren Ventilelement (40) und dem äußeren Ventilelement (36) ausgebildet ist.
- Kraftstoff-Einspritzvorrichtung (18) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich der Führungskörper (42) und der Ventilkörper (44) nur linienhaft mit einer umlaufenden und bezüglich des Ventilkörpers (42) radial außen liegenden Dichtkante (86) berühren.
- Kraftstoff-Einspritzvorrichtung (18) nach Anspruch 6, dadurch gekennzeichnet, dass in einer dem Führungskörper (42) zugewandten Stirnfläche des Ventilkörpers (44) oder in einer dem Ventilkörper zugewandten Stirnfläche des Führungskörpers eine Ausnehmung (72) vorhanden ist, deren radial äußere Begrenzung als ringförmiger Kragen (74) mit einer umlaufenden Dichtkante (76) ausgebildet ist.
- Kraftstoff-Einspritzvorrichtung (18) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Ventilkörper (44) eine gerundete Dichtfläche (80) aufweist, welche mit einer gehäuseseitigen Sitzkante (80) zusammenarbeitet.
- Kraftstoff-Einspritzvorrichtung (18) nach Anspruch 8, dadurch gekennzeichnet, dass die gerundete Dichtfläche (80) einem Ringsegment der Oberfläche einer Kugel entspricht, deren Mittelpunkt (82) auf der Mittelachse (84) des inneren Ventilelements (40) liegt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003148978 DE10348978A1 (de) | 2003-10-22 | 2003-10-22 | Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung |
| DE10348978 | 2003-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1526274A1 true EP1526274A1 (de) | 2005-04-27 |
| EP1526274B1 EP1526274B1 (de) | 2015-11-11 |
Family
ID=34384393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04021298.7A Expired - Lifetime EP1526274B1 (de) | 2003-10-22 | 2004-09-08 | Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1526274B1 (de) |
| DE (1) | DE10348978A1 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006018438A1 (en) * | 2004-08-18 | 2006-02-23 | Robert Bosch Gmbh | Coaxial areal contact dual-resting diameter injector |
| EP1744051A1 (de) * | 2005-07-13 | 2007-01-17 | Delphi Technologies, Inc. | Einspritzdüse |
| EP1744050A1 (de) * | 2005-07-13 | 2007-01-17 | Delphi Technologies, Inc. | Einspritzdüse |
| WO2009016004A1 (de) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Kraftstoffinjektor mit einer auf dem kegelventilsitz einer düsennadel aufsitzenden zentrierhülse als führung für die düsennadel |
| EP2060774A1 (de) * | 2007-11-16 | 2009-05-20 | Delphi Technologies, Inc. | Kraftstoffeinspritzdüse |
| WO2009087453A1 (en) * | 2008-01-09 | 2009-07-16 | Toyota Jidosha Kabushiki Kaisha | Fuel injection valve |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202500A (en) * | 1977-03-09 | 1980-05-13 | Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft | Multi-hole injection nozzle |
| JPS60125767A (ja) * | 1983-12-09 | 1985-07-05 | Nissan Motor Co Ltd | ディ−ゼル機関の燃料噴射ノズル |
| JPS60259768A (ja) * | 1984-06-06 | 1985-12-21 | Mitsubishi Heavy Ind Ltd | 燃料噴射弁 |
| WO1987006650A1 (fr) | 1986-04-25 | 1987-11-05 | Voest-Alpine Automotive Gesellschaft M.B.H. | Injecteur pour moteurs a combustion interne |
| DE4023223A1 (de) | 1990-07-21 | 1992-01-23 | Bosch Gmbh Robert | Kraftstoff-einspritzduese fuer brennkraftmaschinen |
| DE4432686A1 (de) * | 1994-09-14 | 1996-05-23 | Man B & W Diesel Ag | Querschnittgesteuerte Einspritzdüse |
| EP1091117A2 (de) * | 1999-10-06 | 2001-04-11 | Delphi Technologies, Inc. | Kraftstoffeinspritzventil |
| DE10118699A1 (de) * | 2001-04-17 | 2002-10-31 | Bosch Gmbh Robert | Kraftstoff-Einspritzvorrichtung und Kraftstoffsystem für Brennkraftmaschinen, sowie Brennkraftmaschine |
| US20030052203A1 (en) * | 2000-07-15 | 2003-03-20 | Stefan Arndt | Fuel injection valve |
| US20040055559A1 (en) * | 2000-08-03 | 2004-03-25 | Best Christopher Howard | Dual mode fuel injector |
| DE10307002A1 (de) * | 2003-02-19 | 2004-09-09 | Volkswagen Mechatronic Gmbh & Co. Kg | Kraftstoffeinspritzdüse und Pumpe-Düse-Einheit |
-
2003
- 2003-10-22 DE DE2003148978 patent/DE10348978A1/de not_active Withdrawn
-
2004
- 2004-09-08 EP EP04021298.7A patent/EP1526274B1/de not_active Expired - Lifetime
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202500A (en) * | 1977-03-09 | 1980-05-13 | Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft | Multi-hole injection nozzle |
| JPS60125767A (ja) * | 1983-12-09 | 1985-07-05 | Nissan Motor Co Ltd | ディ−ゼル機関の燃料噴射ノズル |
| JPS60259768A (ja) * | 1984-06-06 | 1985-12-21 | Mitsubishi Heavy Ind Ltd | 燃料噴射弁 |
| WO1987006650A1 (fr) | 1986-04-25 | 1987-11-05 | Voest-Alpine Automotive Gesellschaft M.B.H. | Injecteur pour moteurs a combustion interne |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006018438A1 (en) * | 2004-08-18 | 2006-02-23 | Robert Bosch Gmbh | Coaxial areal contact dual-resting diameter injector |
| EP1744051A1 (de) * | 2005-07-13 | 2007-01-17 | Delphi Technologies, Inc. | Einspritzdüse |
| EP1744050A1 (de) * | 2005-07-13 | 2007-01-17 | Delphi Technologies, Inc. | Einspritzdüse |
| US7744017B2 (en) | 2005-07-13 | 2010-06-29 | Delphi Technologies Holding S.Arl | Injection nozzle |
| US7871021B2 (en) | 2005-07-13 | 2011-01-18 | Delphi Technologies Holding S.Arl | Injection nozzle |
| WO2009016004A1 (de) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Kraftstoffinjektor mit einer auf dem kegelventilsitz einer düsennadel aufsitzenden zentrierhülse als führung für die düsennadel |
| EP2060774A1 (de) * | 2007-11-16 | 2009-05-20 | Delphi Technologies, Inc. | Kraftstoffeinspritzdüse |
| US7934668B2 (en) | 2007-11-16 | 2011-05-03 | Delphi Technologies Holdings S.arl | Fuel injector |
| CN101487433B (zh) * | 2007-11-16 | 2011-12-14 | 德尔福技术控股有限公司 | 燃料喷射器 |
| WO2009087453A1 (en) * | 2008-01-09 | 2009-07-16 | Toyota Jidosha Kabushiki Kaisha | Fuel injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10348978A1 (de) | 2005-05-25 |
| EP1526274B1 (de) | 2015-11-11 |
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