EP1080304B1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP1080304B1 EP1080304B1 EP00929215A EP00929215A EP1080304B1 EP 1080304 B1 EP1080304 B1 EP 1080304B1 EP 00929215 A EP00929215 A EP 00929215A EP 00929215 A EP00929215 A EP 00929215A EP 1080304 B1 EP1080304 B1 EP 1080304B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- actuator
- sealing plate
- injection valve
- fuel injection
- 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 102
- 238000002347 injection Methods 0.000 title claims description 18
- 239000007924 injection Substances 0.000 title claims description 18
- 238000007789 sealing Methods 0.000 claims description 59
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 description 3
- 241001295925 Gegenes Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing 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
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009736 wetting 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
-
- 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
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
Definitions
- the invention is based on a fuel injector according to the preamble of claim 1.
- DE 195 34 445 C2 describes a fuel injector known according to the preamble of claim 1. That from this Document resulting fuel injector exists from a valve body in which a valve needle coaxial is led. The valve body has a connection via which are fed to the fuel injector becomes. The valve needle is provided with a central bore. On its outside the valve needle is against the surrounding valve body sealed. To operate the The valve needle is on the inlet side with a pressure shoulder provided which with a piezoelectric actuator cooperates. The pressure shoulder is firm with the Valve needle connected and is close to the inlet side Valve body guided. This will make the actuator in front of the Protected from the effects of fuel pressure.
- valve needle Since the valve needle is firmly connected to the pressure shoulder, the valve needle on the spray side and the pressure shoulder sealing and movable in the valve body on the inlet side are, the production is relatively complex and that Fuel injector susceptible to bending or tension of the valve needle or the change in relative positions of the two sliding surfaces.
- the fuel injector according to the invention with the Features of claim 1 has the advantage that the simple solution provides an inexpensive, low-wear, friction-free and considerably more compact Construction results. Furthermore, the seal is independent from the execution of the valve needle and can thus be in one Variety of fuel injectors can be integrated.
- the sealing plate is advantageously a circular one Sealing plate and can be particularly well in one Fuel injector without core hole with round radial Introduce cross section.
- the sealing plate advantageously has at least one through Recess formed, recessed and radial Flow segment for directing the fuel. Thereby becomes part of the fuel line in the sealing plate integrated, whereby components can be saved and a more compact design of the fuel injector results.
- the sealing plate advantageously has a Base plate and a spacer, the Base plate is cylindrical and the Spacer has at least one radial recess, wherein the fuel channel is formed by the recess.
- the simply designed and therefore inexpensive base plate can thus be independent of the other components Install the sealing plate in the fuel injector.
- Another advantage is that the separate installation of the Spacer the radial direction of the fuel channels independent of the other components of the sealing plate can be selected and in particular the adjustment of the Direction of the fuel channels is simplified.
- the sealing plate advantageously has at least one Hole through which at least one electrical Lead is guided to the actuator, the bore against the fuel is sealed. This will make the seal the electrical supply line against the fuel in the Integrated sealing plate, which creates an additional seal can be omitted and therefore a more compact design results.
- the bore against the fuel is advantageous through a all-round weld seam sealed. This is one simple, resilient and inexpensive sealing of the given electrical supply line against the fuel.
- the seal advantageously has a cup-shaped one elastically deformable actuator housing that with the Sealing plate is connected so that the actuator from the Actuator housing and the sealing plate is hermetically enclosed. This allows the actuator to be particularly well sealed install and, if necessary, can be installed in the Fuel injector built into the seal become. This also allows the tightness of the seal better check.
- the sealing plate is advantageous due to a non-detachable Connection, preferably by a welded connection, with connected to the actuator housing. This results in a resilient, stable over the service life, cost-effective and wear-free sealing.
- the cup-shaped, elastic deformable actuator housing one in the axial direction wavy, elastically stretchable area, which encloses the actuator radially. This will make a big one Actuator stroke in the actuator housing enables.
- the cup-shaped, elastic deformable actuator housing with the sealing plate a pressure-resistant Chamber. This will make the actuator aware of the fuel pressure relieved.
- the actuator advantageously acts via the cup-shaped, elastically deformable actuator housing onto the valve needle. As a result, the actuator is also against one in the area of Leaking fuel arising from the moving valve needle sealed.
- Fig. 1 shows an axial excerpt Sectional view of an inventive Fuel injector 1.
- the fuel injector 1 serves in particular for the direct injection of fuel, especially of gasoline, into a combustion chamber mixture-compressing, spark-ignited internal combustion engine as so-called gasoline direct injection valve.
- fuel injector 1 is also suitable for other use cases.
- the fuel injector 1 has a front one Valve housing 2, a rear valve housing 3 and one Fuel inlet port 4, which together the housing of the Form fuel injector 1.
- a valve needle 5 actuatable valve closing body 6 which in the illustrated embodiment with the valve needle 5th is formed in one piece.
- the valve closing body 6 is frustoconical, widening in the direction of spray educated.
- the valve closing body 6 acts with one a valve seat surface 8 formed to a valve seat body 7 a sealing seat together.
- the valve needle 5 is at her axial movement guided by valve needle guides 9, 10, which are attached to the front valve housing 2. To the Allow flow of fuel, the Valve needle guides 9, 10 recesses 11a, 11b, 12a, 12b on.
- A is used to actuate the fuel injection valve 1 Actuator 13, the piezoelectric or magnetostrictive can be executed.
- the actuator 13 is actuated via an electrical control signal via a connection 14 and an electrical supply line 15 to the actuator 13 is transmitted.
- the actuator 13 When the actuator 13 is actuated, it expands this out and acts on the valve needle 5, whereby the Valve closing body 6 from the valve seat 8 Valve seat body 7 lifts and releases the sealing seat.
- the reset of the valve needle 5 takes place via a compression spring 17, which is on one Side on the valve needle guide 10 and on the other side supported on the valve needle 5.
- the fuel is supplied via the Fuel inlet port 4, which in the rear, for example, designed as a plastic injection molded part Valve housing 3 is embedded, the electrical Has connection 14 for the electrical supply line 15.
- A serves to seal the actuator 13 against the fuel Seal 18, 19, the sealing plate 18 and a Pot-shaped, elastically deformable actuator housing 19 having.
- the actuator housing 19 is with the sealing plate 18th non-detachably connected by a welded joint 20a, 20b.
- the sealing plate 18th At least one recess 21.
- the at least one recess 21 of the sealing plate 18 is covered, so that at least one fuel channel 21 'is formed.
- the Fuel flow takes place in this fuel channel 21 ' largely in the radial direction, the outer circumference of the Sealing plate 18 a deflection of the fuel flow in a axial direction takes place.
- This is made possible by the fact that between a sleeve-shaped, axially extending section 31 of the fuel inlet connector 4 and the actuator housing 19th a further annular fuel channel 21 ′′ is formed, which is in the front valve housing 2 between the Housing wall and the actuator housing 19 continues.
- the Actuator housing 19 has a wave-shaped, elastic stretchable area 22 to also large actuator strokes to enable the actuator 13.
- the sealing plate 18 has one Bore 23 for the passage of the electrical supply line 15 from connection 14 to the actuator 13, which with one in the Drawing designated by 24a, 24b revolving Weld that the sealing plate 18 with the Fuel inlet connector 4 connects non-detachably, against the Fuel is sealed.
- the cup-shaped, elastically deformable actuator housing 19 can a tubular, preferably made of metal, the Have actuator 13 radially enclosing pressure sleeve, so that the cup-shaped, elastically deformable actuator housing 19 with the sealing plate 18 forms a pressure chamber around the actuator 13 to seal against the fuel pressure.
- the fuel injector 1 can also be used as an inside opening Fuel injector 1 may be formed, then the The direction of stroke of the actuator 13 is to be reversed.
- the Sealing plate 18 has three radially widening Recesses 21a - 21c through which the fuel from Fuel inlet connector 4 in the direction of the sealing seat is directed.
- the recesses 21a-21c are for example, offset by 120 ° to each other arranged.
- FIG. 3 shows the sectional view of FIG. 2 illustrated sealing plate 18, wherein the recess 21a in the sectional view can be seen.
- the sealing plate 18 has a radially circumferential connecting surface 25 the sealing plate 18 z. B. with that described in Fig. 1 Pot-shaped, elastically deformable actuator housing 19 preferably be permanently connected with a weld can.
- Fig. 4 shows an alternative embodiment two-part design of the sealing plate 18, the one Has base plate 26 and a spacer 27.
- the Spacer 27 has spacers 28a-28c that through radially widening recesses 29a-29c are separated from each other.
- the spacers 28a-28c are, however, in a central region of the spacer 27 trained interconnected. Through the cutouts 29a - 29c becomes the fuel from the Fuel inlet connector 4 in the direction of the sealing seat directed.
- FIG. 5 shows a section along the line V-V in FIG. 4.
- the connecting surface 25 of the base plate 26 is in this Embodiment through the lateral surface of the given cylindrical base plate 26.
- Fig. 6 shows a simplified top view of the radial extending portion 30 of the fuel inlet port 4 of the Fuel injector 1 according to FIG. 1. Already elements described are with matching Provide reference numerals, whereby a repetitive Description unnecessary.
- the sealing plate 18 has holes 23a, 23b through which the electrical lead 15 on the actuator 13 can be guided. Through the circumferential Weld 24, the sealing plate 18 z. B. on the radial extending portion 30 of the fuel inlet port 4th welded, the bores 23a, 23b are against the fuel sealed.
- the invention is not based on those described Embodiments limited.
- One is in particular different number of fuel channels 21 ', another Design of the recesses 21a-21c, another Design of the sealing plate 18, the connecting surface 25 and the number and shape of the bores 23a, 23b are conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Description
- Fig. 1
- einen auszugsweisen, axialen Schnitt durch ein Ausführungsbeispiel eines erfindungsgemäßen Brennstoffeinspritzventils mit einem Aktor, der durch eine Abdichtung gegen den Brennstoff abgedichtet ist, wobei die übrigen Komponenten des Brennstoffeinspritzventils nur schematisch dargestellt sind;
- Fig. 2
- eine Vorderansicht einer im in Fig. 1 dargestellten Ausführungsbeispiel verwendeten Dichtplatte, die vertiefte, radiale Durchflußsegmente aufweist;
- Fig. 3
- einen Schnitt entlang der Linie III-III in Fig. 2;
- Fig. 4
- die Vorderansicht einer Dichtplatte entsprechend einem alternativen Ausführungsbeispiel;
- Fig. 5
- einen Schnitt entlang der Linie V-V in Fig. 4; und
- Fig. 6
- eine vereinfachte Draufsicht auf einen radial verlaufenden Abschnitt des Brennstoffeinlaßstutzens des Brennstoffeinspritzventils gemäß Fig. 1
Claims (10)
- Brennstoffeinspritzventil (1), insbesondere Einspritzventil für Brennstoffeinspritzanlagen von Brennkraftmaschinen, mit einem Brennstoffeinlaßstutzen (4) zur Zuführung von Brennstoff, einem piezoelektrischen oder magnetostriktiven Aktor (13), der durch eine Abdichtung (18, 19) gegen den Brennstoff abgedichtet ist, und einem von dem Aktor (13) mittels einer Ventilnadel (5) betätigbaren Ventilschließkörper (6), der mit einer Ventilsitzfläche (8) zu einem Dichtsitz zusammenwirkt,
wobei die Abdichtung (18, 19) eine Dichtplatte (18) umfaßt, die zwischen dem Brennstoffeinlaßstutzen (4) und dem Aktor (13) angeordnet ist und zumindest einen Brennstoffkanal (21', 21a - 21c) aufweist, um den Brennstoff von dem Brennstoffeinlaßstutzen (4) in Richtung auf den Dichtsitz zu leiten,
dadurch gekennzeichnet, daß die Dichtplatte (18) zumindest ein durch eine Ausnehmung (21a - 21c) bzw. eine Aussparung (29a - 29c) gebildetes, vertieftes und radiales Durchflußsegment aufweist. - Brennstoffeinspritzventil nach Anspruch 1,
dadurch gekennzeichnet, daß die Dichtplatte (18) kreisförmig ausgebildet ist. - Brennstoffeinspritzventil nach Anspruch 1,
dadurch gekennzeichnet, daß die Dichtplatte (18) eine Grundplatte (26) und eine an der Grundplatte (26) anliegende Distanzscheibe (27) aufweist, wobei die Grundplatte (26) zylinderförmig ausgebildet ist und die Distanzscheibe (27) zumindest eine radiale Aussparung (29a-29c) aufweist, wobei durch die Aussparung (29a-29c) der Brennstoffkanal (21') gebildet wird. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Dichtplatte (18) zumindest eine Bohrung (23, 23a, 23b) aufweist, durch welche zumindest eine elektrische Zuleitung (15) an den Aktor (13) geführt ist,
wobei die Bohrung (23, 23a, 23b) gegen den Brennstoff abgedichtet ist. - Brennstoffeinspritzventil nach Anspruch 4,
dadurch gekennzeichnet, daß die Bohrung (23, 23a, 23b) gegen den Brennstoff durch eine umlaufende Schweißnaht (24, 24a, 24b) abgedichtet ist. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die Abdichtung (18, 19) ein topfförmiges, elastisch verformbares Aktorgehäuse (19) umfaßt, das mit der Dichtplatte (18) so verbunden ist, daß der Aktor (13) von dem Aktorgehäuse (19) und der Dichtplatte (18) hermetisch umschlossen ist. - Brennstoffeinspritzventil nach Anspruch 6,
dadurch gekennzeichnet, daß die Dichtplatte (18) durch eine nichtlösbare Verbindung, vorzugsweise durch eine Schweißverbindung (20a, 20b), mit dem Aktorgehäuse (19) verbunden ist. - Brennstoffeinspritzventil nach Anspruch 6 oder 7,
dadurch gekennzeichnet, daß das topfförmige, elastisch verformbare Aktorgehäuse (19) einen in axialer Richtung wellenförmig ausgebildeten, elastisch dehnbaren Bereich (22) aufweist, welcher den Aktor (13) radial umfaßt. - Brennstoffeinspritzventil nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet, daß das topfförmige, elastisch verformbare Aktorgehäuse (19) mit der Dichtplatte (18) eine druckfeste Kammer bildet, die einem Betriebsdruck des Brennstoffs standhält. - Brennstoffeinspritzventil nach einem der Ansprüche 6 bis 9,
dadurch gekennzeichnet, daß der Aktor (13) über das topffömige, elastisch verformbare Aktorgehäuse (19) auf die Ventilnadel (5) einwirkt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19912665 | 1999-03-20 | ||
DE19912665A DE19912665A1 (de) | 1999-03-20 | 1999-03-20 | Brennstoffeinspritzventil |
PCT/DE2000/000820 WO2000057050A1 (de) | 1999-03-20 | 2000-03-16 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1080304A1 EP1080304A1 (de) | 2001-03-07 |
EP1080304B1 true EP1080304B1 (de) | 2004-10-13 |
Family
ID=7901814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00929215A Expired - Lifetime EP1080304B1 (de) | 1999-03-20 | 2000-03-16 | Brennstoffeinspritzventil |
Country Status (8)
Country | Link |
---|---|
US (1) | US6467460B1 (de) |
EP (1) | EP1080304B1 (de) |
JP (1) | JP2002540342A (de) |
KR (1) | KR20010043661A (de) |
CN (1) | CN1145745C (de) |
DE (2) | DE19912665A1 (de) |
RU (1) | RU2244151C2 (de) |
WO (1) | WO2000057050A1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20010279A1 (it) | 2001-05-08 | 2002-11-08 | Magneti Marelli Spa | Iniettore di carburante con attuatore piezoelettrico alloggiato in una camera isolata |
DE10136807A1 (de) * | 2001-07-27 | 2003-02-13 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10139550A1 (de) * | 2001-08-10 | 2003-03-06 | Bosch Gmbh Robert | Hülse für ein Piezo-Aktormodul |
DE10203655A1 (de) * | 2002-01-30 | 2004-01-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE10204655A1 (de) * | 2002-02-05 | 2003-08-28 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10308879A1 (de) * | 2003-02-28 | 2004-09-09 | Siemens Ag | Injektor mit Düsennadel |
DE10310789A1 (de) * | 2003-03-12 | 2004-09-23 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
FR2854664B1 (fr) * | 2003-05-09 | 2006-06-30 | Renault Sa | Dispositif d'injection de fluide |
DE10328573A1 (de) * | 2003-06-25 | 2005-01-13 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE602004003896T2 (de) | 2004-01-29 | 2007-05-03 | Siemens Vdo Automotive S.P.A., Fauglia | Flüssigkeitseinspritzventil und sein Herstellungverfahren |
DE102004024119B4 (de) | 2004-05-14 | 2006-04-20 | Siemens Ag | Düsenbaugruppe und Einspritzventil |
DE102004044153A1 (de) * | 2004-09-13 | 2006-03-30 | Siemens Ag | Hubvorrichtung und Einspritzventil |
US7140353B1 (en) * | 2005-06-28 | 2006-11-28 | Cummins Inc. | Fuel injector with piezoelectric actuator preload |
DE602006005809D1 (de) * | 2006-07-25 | 2009-04-30 | Continental Automotive Gmbh | Piezoaktoreinheit für ein Einspritzventil |
US20130068200A1 (en) * | 2011-09-15 | 2013-03-21 | Paul Reynolds | Injector Valve with Miniscule Actuator Displacement |
DE102011087005A1 (de) * | 2011-11-24 | 2013-05-29 | Robert Bosch Gmbh | Ventil zum Zumessen eines strömenden Mediums |
DE102012203607A1 (de) * | 2012-03-07 | 2013-09-12 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
CN105849403B (zh) | 2013-10-14 | 2018-11-13 | 大陆汽车有限公司 | 喷射阀 |
DE102014207378B4 (de) * | 2014-04-17 | 2017-08-10 | Continental Automotive Gmbh | Einspritzventilvorrichtung für ein Hochdrucksystem |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2721100A (en) * | 1951-11-13 | 1955-10-18 | Jr Albert G Bodine | High frequency injector valve |
US4649886A (en) * | 1982-11-10 | 1987-03-17 | Nippon Soken, Inc. | Fuel injection system for an internal combustion engine |
DE3533085A1 (de) * | 1985-09-17 | 1987-03-26 | Bosch Gmbh Robert | Zumessventil zur dosierung von fluessigkeiten oder gasen |
DE3533975A1 (de) * | 1985-09-24 | 1987-03-26 | Bosch Gmbh Robert | Zumessventil zur dosierung von fluessigkeiten oder gasen |
JPS62206238A (ja) * | 1986-03-05 | 1987-09-10 | Nippon Denso Co Ltd | 燃料噴射ポンプのパイロツト噴射装置 |
DE19534445C2 (de) * | 1995-09-16 | 1998-07-30 | Man Nutzfahrzeuge Ag | Einspritzventil für Brennkraftmaschinen |
DE19653555C2 (de) * | 1996-12-20 | 2002-10-31 | Siemens Ag | Piezoelektrischer Aktor |
DE50010902D1 (de) * | 1999-04-20 | 2005-09-15 | Siemens Ag | Fluiddosiervorrichtung |
US6253736B1 (en) * | 1999-08-10 | 2001-07-03 | Cummins Engine Company, Inc. | Fuel injector nozzle assembly with feedback control |
US6313568B1 (en) * | 1999-12-01 | 2001-11-06 | Cummins Inc. | Piezoelectric actuator and valve assembly with thermal expansion compensation |
-
1999
- 1999-03-20 DE DE19912665A patent/DE19912665A1/de not_active Withdrawn
-
2000
- 2000-03-16 EP EP00929215A patent/EP1080304B1/de not_active Expired - Lifetime
- 2000-03-16 KR KR1020007012858A patent/KR20010043661A/ko not_active Application Discontinuation
- 2000-03-16 JP JP2000606892A patent/JP2002540342A/ja active Pending
- 2000-03-16 US US09/700,824 patent/US6467460B1/en not_active Expired - Fee Related
- 2000-03-16 WO PCT/DE2000/000820 patent/WO2000057050A1/de not_active Application Discontinuation
- 2000-03-16 RU RU2000132709/06A patent/RU2244151C2/ru not_active IP Right Cessation
- 2000-03-16 DE DE50008203T patent/DE50008203D1/de not_active Expired - Lifetime
- 2000-03-16 CN CNB008003602A patent/CN1145745C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1080304A1 (de) | 2001-03-07 |
US6467460B1 (en) | 2002-10-22 |
KR20010043661A (ko) | 2001-05-25 |
DE50008203D1 (de) | 2004-11-18 |
WO2000057050A1 (de) | 2000-09-28 |
CN1297513A (zh) | 2001-05-30 |
DE19912665A1 (de) | 2000-09-21 |
JP2002540342A (ja) | 2002-11-26 |
RU2244151C2 (ru) | 2005-01-10 |
CN1145745C (zh) | 2004-04-14 |
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Legal Events
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