EP1593841A1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP1593841A1 EP1593841A1 EP05101642A EP05101642A EP1593841A1 EP 1593841 A1 EP1593841 A1 EP 1593841A1 EP 05101642 A EP05101642 A EP 05101642A EP 05101642 A EP05101642 A EP 05101642A EP 1593841 A1 EP1593841 A1 EP 1593841A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- fuel injection
- coupler
- injection valve
- adjusting means
- 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 43
- 238000002347 injection Methods 0.000 title claims description 28
- 239000007924 injection Substances 0.000 title claims description 28
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002411 adverse Effects 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
- 239000002184 metal Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M61/16—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
-
- 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
-
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9007—Ceramic materials
-
- 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
Definitions
- the invention relates to a fuel injection valve according to the preamble of the main claim. It is already a fuel injector known from US 2002/0139864 A1, with a valve housing, in which an actuator and a hydraulic coupler is provided, wherein the hydraulic coupler, a cylinder, an axially movable piston in the cylinder and between the piston and the Cylinder provided coupler gap.
- a fuel injector known from US 2002/0139864 A1
- a valve housing in which an actuator and a hydraulic coupler is provided, wherein the hydraulic coupler, a cylinder, an axially movable piston in the cylinder and between the piston and the Cylinder provided coupler gap.
- the disadvantage is that different coupler gaps can occur due to tolerance deviations on the valve housing.
- the fuel injection valve according to the invention with the characterizing features the main claim has the advantage that the setting of the coupler gap improved in a simple manner, thereby reducing the lifting losses is achieved by attaching an adjustment means in an adjustment of the valve housing is acting on the hydraulic coupler such that a predetermined coupler gap is set.
- the adjusting means is a bolt, a pin or a Screw.
- the actuator and the hydraulic coupler in an actuator space are arranged and the valve housing opening into the actuator chamber adjustment channel in which the adjusting means is arranged. In this way, the Kopplerspalteingna sued done in a final assembly step, so that the coupler gap not be adversely affected by subsequent assembly steps again.
- the adjustment channel in a front side of the valve housing occlusive first housing cover is provided as in the housing cover a sufficient large wall thickness is present, the attachment of the adjusting means in the adjustment channel allows.
- the adjusting means form-fitting, non-positively and / or cohesively connected to a wall of the adjustment channel, since the adjustment in this way is fixedly arranged in the adjustment channel and a constant coupler gap over the entire life of the fuel injection valve allows.
- the adjustment in the adjustment channel be pressed, screwed, welded, soldered, pinched or glued.
- the bolt or the pin has at least one annular groove, because in this way a tighter connection between the adjustment and the Adjustment channel is reached.
- the adjusting means made of ceramic or steel is because these materials have a sufficiently high strength.
- a made of ceramic Adjustment means has a bad sound conduction and passes the from the actuator outgoing noise advantageously not continue to the valve body.
- the drawing shows an inventive fuel injection valve.
- the fuel injection valve serves to fuel in a combustion chamber of an internal combustion engine inject and is for example in the so-called direct injection used.
- the fuel injection valve has a valve housing 1 with an input channel 2 for the Fuel.
- a schematically illustrated Actuator 3 arranged for the axial adjustment of a valve needle 4.
- the valve needle 4 is provided axially movable in the interior 1.1 of the valve housing 1 and has, for example, a needle shaft 7 facing the actuator 3 and a the actuator 3 remote valve closing body 8.
- the actuator 3 transmits its movement for example, via a so-called hydraulic coupler 9 on the needle shaft 7 of the valve needle 4, whereby the cooperating with a valve seat 10 valve closing body 8 opens or closes the fuel injector.
- Fuel injection valve is the valve closing body 8 over its entire circumference on the valve seat 10 with line or surface contact tight and forms a sealing seat 12th
- the actuator 3 is designed as a piezoelectric or magnetostrictive actuator and for example, arranged in an actuator housing 14 to this relative to the fuel to encapsulate.
- the actuator housing 14 is arranged in the interior 1.1 of the valve housing 1 and, for example cylindrical.
- the actuator housing 14 has an actuator chamber 14.1, in addition to the actuator 3, for example, the hydraulic coupler 9 is provided is.
- the needle shaft 7 of the valve needle 4 extends in the actuator housing 14, for example from starting from the hydraulic coupler 9, in the direction of the valve seat 10 and protrudes the actuator housing 14 through a passage opening 15 to the outside of the actuator housing 14.
- the passage opening 15 of the actuator housing 14 is by means of a seal 16, for example by means of a bellows, which at its one end to the actuator housing 14 and at its other end connected to the needle shaft 7, opposite the fuel sealed so that no fuel from the valve housing 1 in the actuator housing 14 can get.
- the hydraulic coupler 9 At the end of the needle shaft 7 facing away from the valve closing body 8, for example the hydraulic coupler 9 is provided, which has an end face on which the valve closing body 8 facing away from the end of the needle shaft 7.
- the actuator 3 is for example on the needle shaft 7 facing away from the end face of the hydraulic Coupler 9 arranged. But it is also possible, the actuator 3 and the hydraulic Provide coupler 9 in the reverse manner and the actuator 3 to the valve closing body 8 facing away from the end of the needle shaft 7 to order.
- a piezoelectric actuator 3 consists of a plurality of piezoceramic layers, which perform an expansion in the axial direction by applying an electrical voltage. In this case, the so-called inverse piezoelectric effect is exploited, in the electrical Energy is converted into mechanical energy.
- the by applying the electrical Stress-induced stretching of the piezoceramic layers becomes, for example transferred via the hydraulic coupler 9 to the valve needle 4, wherein the valve needle 4, for example, executes a stroke of 40 to 50 microns.
- valve housing 1, the actuator housing 14 with the actuator 3 and the hydraulic Coupler 9, the valve needle 4 and the return spring 18 are, for example, concentric relative to each other in the direction of the valve needle 4 extending valve axis 21st arranged.
- Coupler 9 compensate for the differences in the different length expansion, to ensure that the fuel injector with the valve needle 4 independently from the respective temperature of the fuel injection valve in an opening movement each executes the same stroke as the actuator 3. There must be no lifting losses occur in which the stroke of the actuator 3 is not completely transferred to the valve needle 4 is, so that the stroke of the valve needle 4 is smaller than the stroke of the actuator.
- the fuel passes through the inlet channel 2 and a flow connection in the valve housing 1 to the valve closing body 8 upstream of the sealing seat 12.
- the flow connection is, for example, by a first annular gap 19 between the valve housing 1 and the actuator housing 14 and through a second annular gap 20 between the valve housing 1 and the valve needle 4 is formed.
- the hydraulic coupler 9 is for example between the actuator 3 and the valve needle 4 clamped and has, for example, a pot-shaped cylinder 23 with a pot bottom 24 and in the pot-shaped cylinder 23 axially movable piston 25. Between the cylinder 23 and the piston 25, for example between the bottom of the pot 24 and the pot bottom 24 facing the end face of the piston 25, is a coupler gap 26 provided.
- the coupler gap 26 facing away from the end face of the pot bottom 24 of the cup-shaped cylinder 23 is applied to the valve needle 4, for example.
- the piston 25 On a side facing away from the bottom of the pot 24, the piston 25 is for example a Piston rod 29 is provided, which faces away from the piston 25 in a direction extends axially.
- the piston rod 29 has, for example, at its the piston 25 facing away End of a head part 30 which rests, for example, on the actuator 3.
- a compensation volume 31 is provided, which by means of an elastic sealing element 32nd is sealed relative to the actuator chamber 14.1 of the actuator housing 14.
- the elastic Sealing element 32 is designed for example as bellows.
- the coupler gap 26 and the compensation volume 31 of the hydraulic coupler 9 are with a liquid, for example fuel or a secondary medium such as silicone oil, filled.
- the coupler gap 26 is flow-connected via a throttle point 34 with the compensation volume 31, for example, via a gap between the cylinder 23 and the Piston 25 or via at least one throttle bore in the piston 25th
- the stroke of the actuator 3 is, for example, via the head part 30, the piston rod 29, the Piston 25 and the coupler gap 26 on the cylinder 23 of the hydraulic coupler 9 transmitted to the valve stem 7 of the valve needle 4.
- a pressure is applied to the liquid in the coupler gap 26, so that a small part of the liquid via the throttle 34 in the compensating volume 31 escapes.
- the leaked during the stroke of the actuator 3 from the coupler gap 26 leakage amount must be the coupler gap 26 each between two consecutive Be strokes of the actuator 3 are fed back so that the coupler gap 26 is not gradual emptied. Since the time intervals between two strokes depend on the operating state the internal combustion engine can be very short, the highest possible pressure in the compensation volume 31 for quick refilling of the coupler gap 26 is needed.
- the pressure in the compensating volume 31 is, for example, by means of a compression spring 36 increases, which acts compressively on the compensating volume 31.
- the compression spring 36 is clamped for example between the head part 30 and the compensating volume 31.
- the valve housing 1 is on the input channel 2 facing the end of a first housing cover 38 and on the valve needle 4 facing end of a second housing cover 39 sealed.
- the first housing cover 38 closes for example, the input channel 2 facing the front side of the actuator housing 14.
- the first housing cover 38 has, for example, the input channel 2 and a not shown electrical connector for electrical contacting of the actuator 3 on.
- the coupler gap 26 is at a predetermined one during assembly of the fuel injector adjust small gap to reduce Hubholde coupler gap 26.
- the Hubbee in the coupler gap 26 can by small leakage quantities, the Leave coupler gap 26 via throttle point 34 in the direction of equalization volume 31, and caused by compressibility of the liquid in the coupler gap 26.
- an adjustment means 42 is provided in an adjustment channel 43 of the valve housing 1 attached, which acts on the hydraulic coupler 9 such that a predetermined Coupler gap 26 is set.
- the adjusting means 42 is for example in one of the valve needle 4 opposite portion of the valve housing 1 is arranged, which also having the input channel 2.
- the coupler gap 26 is, for example, a gap in the range between XX and YY micrometer set.
- the input channel 2 in the first housing cover 38 has, for example, a first channel section 2.1, which is arranged centrally with respect to the valve axis 21 and rectilinear in Direction of the valve axis 21 extends, and a second channel section 2.2, of the the first channel section 2.1 branches off and into the interior 1.1 outside of the actuator housing 14 opens, for example, in the first annular gap 19th
- the adjusting means 42 is mounted in the adjustment channel 43 and has in the adjustment channel 43rd a defined axial position that is unchanged for the life of the fuel injector remains.
- the adjustment channel 43 extends in the first housing cover 38 of the first channel section 2.1, starting in the direction of the valve axis 21 and opens into the Actuator 14.1 of the actuator housing 14.
- the diameter of the adjustment channel 43 is smaller as the diameter of the first channel section 2.1 of the input channel 2.
- the adjusting means 42 for example, a bolt, a pin or a Screw.
- the adjusting means 42 is positively and / or non-positively and / or cohesively connected to a wall of the adjustment channel 43, for example in the adjustment channel 43 pressed, screwed, welded, clamped and / or glued. That's the way it is Adjustment means 42 after assembly fixed and without external action in the axial direction immovably arranged in the adjustment channel 43.
- the adjustment channel 43 has a thread.
- the adjusting means 42 is for example made of ceramic, sintered material or metal, for example Steel, made.
- An adjustment made of ceramic or sintered material 42 has the advantage that it conducts noise and vibrations badly and on This way the outgoing noise from the actuator 3 in a muted way the valve housing 1 forwards.
- the adjusting means 42 is inserted during assembly in the first channel section 2.1 and by a tool from the first channel section 2.1 in the adjustment channel 43rd introduced by a predetermined insertion length, for example, pressed, wherein the Diameter of the adjusting means 42 is greater than the diameter of the Einstellkanals 43rd
- the insertion of the adjusting means 42 in the adjustment channel 43 for example, in two steps, wherein the adjusting means 42 in the first step by the predetermined insertion length in the adjustment channel 43 to the concern of the actuator 3 or on the hydraulic Coupler 9 is moved.
- the adjustment means 42 is a moved further, previously determined insertion length in the direction of the valve seat 10.
- the adjustment of the coupler gap 26 is independent of tolerance deviations at the fuel injection valve.
- the adjusting means 42 projects through the adjustment channel 43 into the actuator housing 14 and extends to the actuator 3 or the hydraulic coupler 9, for example, the actuator 3.
- Das Adjustment means 42 projects with a predetermined Kochstehin in the actuator chamber 14 and exercises against the spring force of the compression spring 36 of the hydraulic coupler 9 a predetermined Compressive force on the actuator 3 and the hydraulic coupler 9, which is larger as the spring force of the compression spring 36 and therefore the piston 25 of the hydraulic Coupler 9 presses in the direction of the pot bottom 24 of the hydraulic coupler 9, so that Liquid from the coupler gap 26 through the throttle 34 in the compensation volume 31 is displaced and the coupler gap 26 sets to a predetermined level.
- the compressive force of the compression spring 36 attempts against the force of the adjusting 42nd Liquid from the compensating volume 31 via the throttle point 34 in the coupler gap To press 26, the piston 25 in this way in the pot bottom 24 opposite direction to move, the dimension of the coupler gap 26 and thus the longitudinal extent of the hydraulic coupler 9 to enlarge.
- the actuator 3 and the hydraulic coupler 9 are between the adjusting means 42 and the Valve needle 4 clamped and stored, for example gimbal.
- the adjusting means 42 and the valve needle 4 are for forming a gimbal bearing, for example at the end facing the actuator chamber 14.1 rounded and / or conical.
- the adjusting means 42 when pressing the setting means 42 as solid as possible to achieve seating of the adjusting means 42 in the adjusting channel 43, the adjusting means 42 for example, one or more mutually axially spaced annular grooves 44th on.
- the Setting means 42 also cup-shaped hollow and open to the first channel section 2.1 out be (as shown by dashed lines, for example), so that the pressure of the fuel of the first channel section 2.1, the adjusting means 42 radially outwardly against the wall of the adjustment channel 43 presses.
- the setting of the coupler gap 26 takes place, for example, in a final assembly step after assembly of the actuator 3 and the hydraulic coupler 9 in the actuator housing 14, after assembly of the actuator housing 14, the valve needle 4 and the return spring 18 in the valve housing 1, and after the frontal closure of the valve housing 1 with the housing covers 38,39. This will avoid that Coupler gap 26 could be adjusted by subsequent assembly steps again.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Es ist schon ein Brennstoffeinspritzventil aus der US 2002/0139864 A1 bekannt, mit einem Ventilgehäuse, in dem ein Aktor und ein hydraulischer Koppler vorgesehen ist, wobei der hydraulische Koppler einen Zylinder, einen in dem Zylinder axial beweglichen Kolben und einen zwischen dem Kolben und dem Zylinder vorgesehenen Kopplerspalt aufweist.
Nachteilig ist, dass sich durch Toleranzabweichungen am Ventilgehäuse unterschiedliche Kopplerspalte einstellen können.
Claims (12)
- Brennstoffeinspritzventil mit einem Ventilgehäuse, in dem ein Aktor und ein hydraulischer Koppler vorgesehen ist, wobei der hydraulische Koppler einen Zylinder, einen in dem Zylinder axial beweglichen Kolben und einen zwischen dem Kolben und dem Zylinder vorgesehenen Kopplerspalt aufweist, dadurch gekennzeichnet, dass in einem Einstellkanal (43) des Ventilgehäuses (1) ein Einstellmittel (42) befestigt ist, das derart auf den hydraulischen Koppler (9) wirkt, dass ein vorbestimmter Kopplerspalt (26) eingestellt ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass das Einstellmittel (42) ein Bolzen, ein Stift oder eine Schraube ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass der Aktor (3) und der hydraulische Koppler (9) in einem Aktorraum (14.1) angeordnet sind und das Ventilgehäuse (1) einen in den Aktorraum (14.1) mündenden Einstellkanal (43) aufweist, in dem das Einstellmittel (42) angeordnet ist.
- Brennstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, dass der Einstellkanal (43) in einem das Ventilgehäuse (1) stirnseitig verschließenden ersten Gehäusedeckel (38) vorgesehen ist.
- Brennstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, dass das Einstellmittel (42) formschlüssig, kraftschlüssig und/oder stoffschlüssig mit einer Wandung des Einstellkanals (43) verbunden ist.
- Brennstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, dass das Einstellmittel (42) in den Einstellkanal (43) gepresst, geschraubt, geschweißt, gelötet, geklemmt oder geklebt ist.
- Brennstoffeinspritzventil nach Anspruch 2, dadurch gekennzeichnet, dass der Bolzen oder der Stift am Umfang zumindest eine ringförmige Nut (44) aufweist.
- Brennstoffeinspritzventil nach Anspruch 2, dadurch gekennzeichnet, dass das Einstellmittel (42) aus Keramik oder Stahl hergestellt ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass der Aktor (3) und der hydraulische Koppler (9) zwischen dem Einstellmittel (42) und einer Ventilnadel (4) gelagert sind.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass das Einstellmittel (42) an einem einem Aktorraum (14.1) zugewandten Ende abgerundet und/oder kegelförmig ausgebildet ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass das Einstellmittel (42) in einem der Ventilnadel (4) gegenüberliegenden Abschnitt des Ventilgehäuses (1) angeordnet ist.
- Brennstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass der Aktor (3) und der hydraulische Koppler (9) einteilig miteinander verbunden sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410021921 DE102004021921A1 (de) | 2004-05-04 | 2004-05-04 | Brennstoffeinspritzventil |
DE102004021921 | 2004-05-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1593841A1 true EP1593841A1 (de) | 2005-11-09 |
EP1593841B1 EP1593841B1 (de) | 2007-10-17 |
Family
ID=34938874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050101642 Expired - Fee Related EP1593841B1 (de) | 2004-05-04 | 2005-03-03 | Brennstoffeinspritzventil |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1593841B1 (de) |
DE (2) | DE102004021921A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1865194A1 (de) * | 2006-06-06 | 2007-12-12 | Siemens Aktiengesellschaft | Verfahren zur Einstellung eines Brennstoffeinspritzventils |
EP2003325A1 (de) * | 2007-06-11 | 2008-12-17 | Robert Bosch Gmbh | Steuerventil, insbesondere für einen Kraftstoffinjektor einer Brennkraftmaschine |
US20150014436A1 (en) * | 2012-02-27 | 2015-01-15 | Robert Bosch Gmbh | Valve for Metering Fluid |
EP1876349B1 (de) * | 2006-07-07 | 2016-05-18 | Continental Automotive GmbH | Verfahren zur Kalibrierung von Einspritzventil |
WO2023247279A1 (de) * | 2022-06-22 | 2023-12-28 | Robert Bosch Gmbh | Brennstoffventil zur dosierten abgabe von brennstoff |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006018026B4 (de) * | 2006-04-19 | 2014-08-14 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102009045009A1 (de) | 2009-09-25 | 2011-03-31 | Robert Bosch Gmbh | Einspritzventil für ein Fluid |
DE102009045836A1 (de) | 2009-10-20 | 2011-04-21 | Robert Bosch Gmbh | Einspritzventil für ein Fluid |
DE102011081343A1 (de) | 2011-08-22 | 2013-02-28 | Robert Bosch Gmbh | Ventil zum Zumessen eines strömenden Mediums |
DE102013204105A1 (de) | 2013-03-11 | 2014-09-11 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022166A (en) * | 1975-04-03 | 1977-05-10 | Teledyne Industries, Inc. | Piezoelectric fuel injector valve |
US20010035164A1 (en) * | 1999-10-15 | 2001-11-01 | Irawan Rahardja | Directly actuated injection valve with a composite needle |
WO2002031344A1 (en) * | 2000-10-11 | 2002-04-18 | Siemens Vdo Automotive Corporation | Dual-spring compensator assembly for a fuel injector and method |
US6685105B1 (en) * | 1999-10-21 | 2004-02-03 | Robert Bosch Gmbh | Fuel injection valve |
-
2004
- 2004-05-04 DE DE200410021921 patent/DE102004021921A1/de not_active Withdrawn
-
2005
- 2005-03-03 DE DE200550001701 patent/DE502005001701D1/de active Active
- 2005-03-03 EP EP20050101642 patent/EP1593841B1/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022166A (en) * | 1975-04-03 | 1977-05-10 | Teledyne Industries, Inc. | Piezoelectric fuel injector valve |
US20010035164A1 (en) * | 1999-10-15 | 2001-11-01 | Irawan Rahardja | Directly actuated injection valve with a composite needle |
US6685105B1 (en) * | 1999-10-21 | 2004-02-03 | Robert Bosch Gmbh | Fuel injection valve |
WO2002031344A1 (en) * | 2000-10-11 | 2002-04-18 | Siemens Vdo Automotive Corporation | Dual-spring compensator assembly for a fuel injector and method |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1865194A1 (de) * | 2006-06-06 | 2007-12-12 | Siemens Aktiengesellschaft | Verfahren zur Einstellung eines Brennstoffeinspritzventils |
EP1876349B1 (de) * | 2006-07-07 | 2016-05-18 | Continental Automotive GmbH | Verfahren zur Kalibrierung von Einspritzventil |
EP2003325A1 (de) * | 2007-06-11 | 2008-12-17 | Robert Bosch Gmbh | Steuerventil, insbesondere für einen Kraftstoffinjektor einer Brennkraftmaschine |
US20150014436A1 (en) * | 2012-02-27 | 2015-01-15 | Robert Bosch Gmbh | Valve for Metering Fluid |
US9470198B2 (en) * | 2012-02-27 | 2016-10-18 | Robert Bosch Gmbh | Valve for metering fluid |
WO2023247279A1 (de) * | 2022-06-22 | 2023-12-28 | Robert Bosch Gmbh | Brennstoffventil zur dosierten abgabe von brennstoff |
Also Published As
Publication number | Publication date |
---|---|
DE502005001701D1 (de) | 2007-11-29 |
EP1593841B1 (de) | 2007-10-17 |
DE102004021921A1 (de) | 2005-12-01 |
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