EP0952333B1 - Einspritzventil für Kraftstoffeinspritzsysteme - Google Patents
Einspritzventil für Kraftstoffeinspritzsysteme Download PDFInfo
- Publication number
- EP0952333B1 EP0952333B1 EP99106924A EP99106924A EP0952333B1 EP 0952333 B1 EP0952333 B1 EP 0952333B1 EP 99106924 A EP99106924 A EP 99106924A EP 99106924 A EP99106924 A EP 99106924A EP 0952333 B1 EP0952333 B1 EP 0952333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- nozzle needle
- pressure
- working
- piezo stack
- 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
- 238000002347 injection Methods 0.000 title claims description 27
- 239000007924 injection Substances 0.000 title claims description 27
- 239000000446 fuel Substances 0.000 title claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000013519 translation Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent 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
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/002—Arrangement of leakage or drain conduits in or from injectors
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
Definitions
- the invention relates to an injection valve for fuel injection systems after in the preamble of claim 1 closer defined type.
- Generic injectors are known from EP-A-0 816,670 and from US-A-3,635,016.
- the actuating force comes from the piezo stack, which actuates the nozzle needle.
- the three pistons namely displacement piston, control piston and working pistons, the path is enlarged, so that a defined opening of the nozzle needle established.
- the injection valve according to US-A-3 635 016 works in a similar way, with no control edges exist in the true sense, but only a translation of the area ratios.
- DE 195 19 191 C2 describes an injection valve, being between a piezo stack and the nozzle needle of the Injector a hydraulic path-translation unit with a displacer and a Displacer piston downstream control piston arranged is.
- the disadvantage here is that in the Distance translation the actuating force for the nozzle needle declining.
- DE 195 00 706 A1 is a fuel injection valve for internal combustion engines, which has a hydraulic displacement amplifier for implementing a travel a piezoelectric actuator. at This valve are fluid-supplying and fluidabumblede Channels separated, the fluid through a channel disposed in the valve housing in a Annulus is performed.
- a disadvantage of this injector is, however, that although the way reinforced at the same time, however, via the Leverage Act Operating force is reduced.
- Another disadvantage is that the channel is the fuel injector during the delivery of fuel into the annulus subjected to a bending stress.
- EP 0 218 895 B1 from which a metering valve for dosing of liquids or gases with a piezoelectric Actuator is known.
- On the piezoelectric Actuator directly affects the pressure, with which the valve is acted upon.
- pressures of 1000 bar At the in Fuel injection systems occurring pressures of 1000 bar is an exact function of the valve due to Stellwegsteren the valve needle not more guaranteed.
- Another disadvantage is, that after lifting the valve needle from the valve seat the fuel through the resulting gap uncontrollable injected into the combustion chamber.
- the present invention is based on the object an injection valve of the type mentioned above create, with which a fuel injection with high accuracy and precise and without loss of power through a way-translation is possible.
- the path reinforcement according to the invention is of the force decoupled, because the force application for opening the nozzle needle only via the system pressure, e.g. one Rail pressure, done. Because you have no loss of power in the Translation gets, has the piezostack position too no negative influence on the opening of the nozzle needle.
- a pressure piece is arranged, wherein between the pressure piece and the working piston a length compensation space with a Balancing spring is located.
- the injection valve according to the invention is the same Working principle for both outward and after inside opening nozzle needles suitable.
- the injection valve 1 shown in FIG has an injector 2, a piezoelectric guide 3, in which a piezo stack 4 is arranged, and with a the injector 2 by means of a union nut. 5 connected valve housing 6.
- a valve closing device 7 is displaceable arranged in the valve housing 6.
- the valve closing device 7 has a plunger 8 as a nozzle needle with a valve stem 9, in which the plunger 8 is fitted.
- a sealing member in the form of a paragraph 10th intended.
- the valve housing 6, the paragraph 10 and a separating device fixedly connected to the valve stem 9, which is designed as a pressure equalizing cylinder 11 is one filled with fuel during operation Annular gap 12. From the annular gap 12 is at open valve 1 a precisely metered amount of fuel in a combustion chamber, which is not shown in the drawing is, injected.
- a flow restrictor is used for this purpose 13, which is provided with a spring device 14 to a cross-sectional area of the shoulder 10 of the valve stem 9 is pressed.
- the spring device 14 is supported on a cylindrical stop 15.
- annulus 16 is formed, in which a valve. 1 fuel supply line 17 opens. From here the fuel flows through holes 18 in the annular gap 12th
- the piezo stack 4 is completely in the low pressure range of fuel-carrying channels and thus becomes not supplied by the very high pressure Fuel affected in its mode of action.
- the Return flow of fuel takes place in this pressure range in a longitudinal groove 19, where it is at the of the Combustion chamber remote from the end of the piezo stack 4 from the Valve 1 exits.
- the piezo stack 4 is supplied with a control voltage, so this causes in a known manner an elongation the piezo stack 4, whereby the valve closing device 7 opens, as between the paragraph 10 of the valve stem 9 and a valve seat 6 and the flow restrictor 13 a corresponding gap is formed.
- the control voltage switched off, bringing the piezo stack 4 shortened accordingly back to its original length.
- the provision of the nozzle needle 8 causes a Nozzle needle spring 51, located on a collar 55 of the Nozzle needle 8 is supported.
- the piezo stack 4 is one with a Surrounding end cap provided protective tube 20.
- the sealing cap of the protective tube 20 is in axial Direction between the piezo stack 4 and a Displacer 21 is arranged and thus actuates this at an elongation of the piezo stack 4.
- a control piston 22 In axial Direction in front of the displacer 21 - based on the Combustion chamber - there is a control piston 22.
- the Control piston 22 has a smaller effective pressure surface as the displacer 21.
- the hydraulic Translation ratios arise from the different Geometries or diameter ratios of displacer 21 and spool 22.
- a piezo stack bias is achieved.
- the pressure compensation room 24 is with test oil or with fuel filled.
- the filling or a pressure equalization takes place via targeted leaks between the control piston 22, the displacer 21 and the surrounding cylinder housing 25.
- In the cylinder housing 25 opens an inlet 26, which is in communication with the inlet annulus 16. In this way, the cylinder housing 25 is axial and arranged against rotation.
- annular groove 27 From the inlet 26 is via an annular groove 27 and an inclined bore 28 which is arranged in the control piston 22 are an annular space 29 with system pressure (Rail pressure) from the annulus 16 acted upon. Of the Annulus 29 is between the control piston 22 and a Sliding sleeve 30 formed.
- the piezo stack 4 receives a control voltage, then in the direction of arrow B, the protective tube 20, the displacer 21 and the control piston 22 is shifted, wherein a pilot control edge 31 between the control piston 22 and the sliding sleeve 30 opens, bringing a high-pressure connection over the annular space 29 to a bore 32 is created in the sliding sleeve 30 and thus an associated working cylinder or working pressure chamber 33, the radially between the sliding sleeve 30th with a return control edge 36 and the cylinder housing 25 and axially between an end wall of the cylinder housing 25 and a working piston 34 is arranged is.
- the working piston 34 By applying the working pressure chamber 33 with high pressure, the working piston 34 is wegtechnisch the control piston 22 is moved in the direction of arrow B. Due to the biasing spring 35, the sliding sleeve follows 30 the working piston 34 and seals with the return control edge 36 the pressure chamber 33 from. The sliding sleeve 30 follows the power piston 34 until they again to the pilot control edge 31 between the control piston 22 and the sliding sleeve 30 meets or these Control edge locks. This is the working pressure space 33 hydraulically tight and the working piston remains in this position. As can be seen, gives the displacer 21 the way for the from the displacer 21, the control piston 22, the sliding sleeve 30 and the working piston 34 existing follower before, the then reacted to the nozzle needle 8.
- the protective tube 20 has the task of ensuring that the piezo stack 4 is not in contact with fuel comes.
- a hydraulic length compensation of the piezo stack 4 is about the targeted leakage of the control piston 22nd and one on the outer diameter of the displacer 21st incorporated capillary reaches over the leakage in the return line or the longitudinal groove 19 passes.
- the disc springs 23 provide ensure that the displacer 21 always on the Piezo stack 4 is applied and thus the piezo stack 4th is preloaded at the same time.
- the mechanical performance of the piezo stack 4 is used exclusively for valve positioning. In other words, that means the Force amplification with the piezo stack 4 directly to nothing has to do. So it will not be the piezokraft for the Operation of the nozzle needle 8 used, but alone the pressure in the pressure chamber of the working cylinder 33 is applied, and this pressure is proportional the power.
- FIGS. 3 and 4 show an injection valve, in which the nozzle needle 8 'for injecting Fuel opens inward. This means the direction of actuation of the piezo stack 4 'is the reverse of Actuation direction of the nozzle needle 8 '.
- Fig. 1 In contrast to the embodiment of the Fig. 1 is not a loop for supplying rail pressure 16 provided, but a stub 43. For the return of fuel is a leakage line 44 intended.
- the piezo bias can again in the Pressure equalization chamber 24 'by plates, or coil springs 23 ', are set. In this injection valve system yes, a way reversal must take place, if the Piezo stack 4 'is pressed. In this case, the Room in which a spring 56 is located, only one Vent space.
- the pressure compensation chamber 24 ' is compressed at a control voltage 4 '. Above this, a pressure acts in the pressure compensation chamber 24 ' Diameter difference.
- the fuel supply for the pressure compensation chamber 24 ' takes place via a connecting channel 54 in the Control piston 22 'to the inlet 26 via a collar in the Control piston 22 '.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
- Fig. 1
- eine Gesamtdarstellung eines erfindungsgemäßen Einspritzventils,
- Fig. 2
- eine Ausschnittvergrößerung des Kreises "X" in der Fig. 1,
- Fig. 3
- einen Schnitt durch ein Einspritzventil mit einer nach innen sich öffnenden Düsennadel, und
- Fig. 4
- eine Ausschnittvergrößerung des Kreises "Y" in der Fig. 3.
Claims (5)
- Einspritzventil für Kraftstoffeinspritzsysteme, mit einem Injektorgehäuse (2), in welchem ein Piezostack (4) angeordnet ist, und einem mit dem Injektorgehäuse (2) verbundenen Ventilgehäuse (6), in dem eine mit einer Düsennadel (8) versehene Ventilverschließeinrichtung (7) verschiebbar angeordnet ist, welche durch den Piezostack (4) betätigbar ist, wobei eine Rückstelleinrichtung vorgesehen ist, mittels der die Ventilverschließeinrichtung (7) rückstellbar ist, und wobei zwischen dem Piezostack (4) und der Düsennadel (8) der Ventilverschließeinrichtung (7) ein von dem Piezostack (4) betätigter Verdrängerkolben (21) und ein dem Verdrängerkolben (21) nachgeschalteter, den Verstellweg vergrößernden Steuerkolben (22) angeordnet ist, wobei für eine hydraulische Folgeverstärkung ein die Düsennadel (8) betätigender und die Betätigungskraft erhöhenden Arbeitskolben (34) vorgesehen ist,
dadurch gekennzeichnet, dass
zwischen dem Steuerkolben (22) und dem Arbeitskolben (34) eine Schiebehülse (30) angeordnet ist, an der eine Vorsteuerkante (31) und eine Rücksteuerkante (36) zum Druckaufbau und zum Druckabbau in einem zwischen dem Steuerkolben (22) und dem Arbeitskolben (34) angeordneten Arbeitsraum eines Arbeitszylinders (33) vorgesehen sind. - Einspritzventil nach Anspruch 1,
dadurch gekennzeichnet, dass
für einen hydraulischen Längenausgleich für die Düsennadel (8) zwischen der Düsennadel (8) und dem Arbeitskolben (34) ein Druckstück (42) angeordnet ist, wobei sich zwischen dem Druckstück (42) und dem Arbeitskolben (34) ein Längenausgleichsraum (39) mit einer Ausgleichsfeder (40) befindet. - Einspritzventil nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, dass
bei einer nach innen, entgegen der Piezobetätigung sich öffnenden Düsennadel (8) eine Wegumkehr zwischen dem Verdrängerkolben (21) und dem Steuerkolben (22) stattfindet. - Einspritzventil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass
der Piezostack (4) von einer Piezoführung (3) umgeben ist. - Einspritzventil nach Anspruch 4,
dadurch gekennzeichnet, dass zwischen der Piezoführung (3) und dem Injektorgehäuse (2) ein Ringraum (16) gebildet ist, in den eine Kraftstoffzuleitung (17) mündet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19817320 | 1998-04-18 | ||
DE19817320A DE19817320C1 (de) | 1998-04-18 | 1998-04-18 | Einspritzventil für Kraftstoffeinspritzsysteme |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0952333A2 EP0952333A2 (de) | 1999-10-27 |
EP0952333A3 EP0952333A3 (de) | 2002-02-13 |
EP0952333B1 true EP0952333B1 (de) | 2004-06-23 |
Family
ID=7865016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99106924A Expired - Lifetime EP0952333B1 (de) | 1998-04-18 | 1999-04-08 | Einspritzventil für Kraftstoffeinspritzsysteme |
Country Status (3)
Country | Link |
---|---|
US (1) | US6302333B1 (de) |
EP (1) | EP0952333B1 (de) |
DE (2) | DE19817320C1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19953562A1 (de) * | 1999-11-08 | 2001-05-23 | Bosch Gmbh Robert | Kraftstoff-Einspritzdüse |
DE10000575A1 (de) * | 2000-01-10 | 2001-07-19 | Bosch Gmbh Robert | Einspritzdüse |
DE10006319A1 (de) * | 2000-02-12 | 2001-08-16 | Daimler Chrysler Ag | Einspritzventil |
EP1174615B1 (de) | 2000-07-18 | 2007-01-31 | Delphi Technologies, Inc. | Kraftstoffeinspritzventil |
DE10112147A1 (de) * | 2001-03-14 | 2002-09-19 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
ITBO20010279A1 (it) * | 2001-05-08 | 2002-11-08 | Magneti Marelli Spa | Iniettore di carburante con attuatore piezoelettrico alloggiato in una camera isolata |
DE10133265A1 (de) * | 2001-07-09 | 2003-01-23 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US6766965B2 (en) * | 2001-08-31 | 2004-07-27 | Siemens Automotive Corporation | Twin tube hydraulic compensator for a fuel injector |
US6792921B2 (en) * | 2001-12-17 | 2004-09-21 | Caterpillar Inc | Electronically-controlled fuel injector |
US6983894B2 (en) | 2002-02-13 | 2006-01-10 | Siemens Vdo Automotive Inc. | Piezo-electrically actuated canister purge valve with a hydraulic amplifier |
EP1391607A1 (de) * | 2002-08-20 | 2004-02-25 | Siemens VDO Automotive S.p.A. | Dosiergerät |
US6811093B2 (en) * | 2002-10-17 | 2004-11-02 | Tecumseh Products Company | Piezoelectric actuated fuel injectors |
DE10310790A1 (de) * | 2003-03-12 | 2004-09-23 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102004027824A1 (de) | 2004-06-08 | 2006-01-05 | Robert Bosch Gmbh | Kraftstoffinjektor mit variabler Aktorübersetzung |
DE102004035280A1 (de) * | 2004-07-21 | 2006-03-16 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter mehrstufiger Einspritzventilgliedansteuerung |
DE102005008972A1 (de) * | 2005-02-28 | 2006-08-31 | Robert Bosch Gmbh | Einspritzdüse |
US7307371B2 (en) * | 2005-11-18 | 2007-12-11 | Delphi Technologies, Inc. | Actuator with amplified stroke length |
US7628139B2 (en) * | 2006-07-11 | 2009-12-08 | Detroit Diesel Corporation | Fuel injector with dual piezo-electric actuator |
US7658179B2 (en) * | 2008-05-28 | 2010-02-09 | Caterpillar Inc. | Fluid leak limiter |
US7661410B1 (en) | 2008-08-18 | 2010-02-16 | Caterpillar Inc. | Fluid leak limiter |
DE102012212264B4 (de) | 2012-07-13 | 2014-02-13 | Continental Automotive Gmbh | Verfahren zum Herstellen eines Festkörperaktuators |
DE102012212266B4 (de) * | 2012-07-13 | 2015-01-22 | Continental Automotive Gmbh | Fluidinjektor |
DE102014009025B4 (de) * | 2014-06-24 | 2016-02-18 | Airbus Ds Gmbh | Biegerahmen zur Velängerung des Stellwegs eines Aktors für ein mechanisch betätigtes Bauteil |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3501099A (en) * | 1967-09-27 | 1970-03-17 | Physics Int Co | Electromechanical actuator having an active element of electroexpansive material |
DE3533085A1 (de) * | 1985-09-17 | 1987-03-26 | Bosch Gmbh Robert | Zumessventil zur dosierung von fluessigkeiten oder gasen |
DE4311627B4 (de) * | 1993-04-08 | 2005-08-25 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
DE19500706C2 (de) * | 1995-01-12 | 2003-09-25 | Bosch Gmbh Robert | Zumeßventil zur Dosierung von Flüssigkeiten oder Gasen |
DE19519191C2 (de) * | 1995-05-24 | 1997-04-10 | Siemens Ag | Einspritzventil |
US5779149A (en) * | 1996-07-02 | 1998-07-14 | Siemens Automotive Corporation | Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke |
DE19701288C2 (de) * | 1997-01-16 | 1999-10-14 | Daimler Benz Ag | Ventil zur dosierten Abgabe von Fluiden |
-
1998
- 1998-04-18 DE DE19817320A patent/DE19817320C1/de not_active Expired - Lifetime
-
1999
- 1999-04-08 DE DE59909783T patent/DE59909783D1/de not_active Expired - Lifetime
- 1999-04-08 EP EP99106924A patent/EP0952333B1/de not_active Expired - Lifetime
- 1999-04-19 US US09/293,767 patent/US6302333B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19817320C1 (de) | 1999-11-11 |
US6302333B1 (en) | 2001-10-16 |
DE59909783D1 (de) | 2004-07-29 |
EP0952333A2 (de) | 1999-10-27 |
EP0952333A3 (de) | 2002-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0952333B1 (de) | Einspritzventil für Kraftstoffeinspritzsysteme | |
DE2500644C2 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
EP0909891B1 (de) | Ventil zum Steuern von Flüssigkeiten | |
EP0960274B1 (de) | Kraftstoffeinspritzvorrichtung für brennkraftmaschinen | |
DE102008000985B4 (de) | Injektor | |
DE19946827C1 (de) | Ventil zum Steuern von Flüssigkeiten | |
EP1144857B1 (de) | Doppelschaltendes steuerventil mit hydraulischer verstärkung des aktors | |
EP1269008B1 (de) | Einspritzventil mit bypassdrossel | |
EP2735725B1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
EP1379775A1 (de) | Ventil zum steuern von flüssigkeiten | |
DE4320620B4 (de) | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen | |
EP1952011B1 (de) | Kraftstoff-einspritzvorrichtung für eine brennkraftmaschine mit kraftstoff-direkteinspritzung | |
EP0941401B1 (de) | Ventil zum steuern von flüssigkeiten | |
DE102006009659A1 (de) | Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung | |
EP1692392B1 (de) | Kraftstoffinjektor mit direkter nadelsteuerung | |
WO2007141094A1 (de) | Kraftstoff-einspritzvorrichtung für eine brennkraftmaschine | |
EP0999360A1 (de) | Steuerventil für Dosiervorrichtung für Fluid | |
EP2458194B1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
DE102009045995A1 (de) | Kraftstoffeinspritzvorrichtung | |
DE10353641B4 (de) | Brennstoffeinspritzventil | |
DE10357873A1 (de) | Einspritzventil | |
DE19923422C2 (de) | Elektronisches Einspritzsystem | |
DE102005023179B3 (de) | Einspritzventil mit einem erhöhten Druck im Ablaufraum | |
EP3184801A1 (de) | Hydraulische kopplereinrichtung und kraftstoffeinspritzventil mit einer solchen | |
DE10050599B4 (de) | Einspritzventil mit einem Pumpkolben |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Kind code of ref document: A2 Designated state(s): DE FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20020119 |
|
AKX | Designation fees paid |
Free format text: DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20021204 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: P & S PROTOTYPEN UND SONDERMASCHINEN ENTWICKLU Owner name: ERPHI-ELECTRONIC GMBH Owner name: DAIMLERCHRYSLER AG |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: P & S PROTOTYPEN UND SONDERMASCHINEN ENTWICKLU Owner name: ERPHI-ELECTRONIC GMBH Owner name: DAIMLERCHRYSLER AG |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 59909783 Country of ref document: DE Date of ref document: 20040729 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040722 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050324 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD Ref country code: FR Ref legal event code: CA |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090427 Year of fee payment: 11 Ref country code: FR Payment date: 20090414 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090421 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100408 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20101230 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100408 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20180627 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59909783 Country of ref document: DE |