EP0909891A1 - Ventil zum Steuern von Flüssigkeiten - Google Patents
Ventil zum Steuern von Flüssigkeiten Download PDFInfo
- Publication number
- EP0909891A1 EP0909891A1 EP98111325A EP98111325A EP0909891A1 EP 0909891 A1 EP0909891 A1 EP 0909891A1 EP 98111325 A EP98111325 A EP 98111325A EP 98111325 A EP98111325 A EP 98111325A EP 0909891 A1 EP0909891 A1 EP 0909891A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- piston
- coupling space
- valve according
- filling
- 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
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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
- 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
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
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- 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
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
- F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
-
- 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
- F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion
- F02M2200/706—Valves for filling or emptying hydraulic chamber
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- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/003—Valve inserts containing control chamber and valve piston
Definitions
- the invention relates to a valve for controlling Liquids according to the preamble of claim 1.
- a valve for controlling Liquids according to the preamble of claim 1.
- a valve is known from EP 0 477 400.
- a problem with such valves is that on Piezo actuator, on the valve member or on the valve housing and in the hydraulic column of the coupling space changes in length occur that need to be balanced. Because the piezo actuator generates a pressure to open the valve in the coupling space, this pressure also leads to a loss of coupling space fluid. To empty the coupling space prevent refilling is necessary.
- a Compensated for tolerance due to a specified leak create. This has the disadvantage that one in the two possible directions of flow open connection between the coupling space and z. B. provided a reservoir is, because of the resulting flexibility of the hydraulic space the working behavior of the piezo actuator negatively influenced.
- the well-known facility is so executed that the hydraulic fluid hermetically in Housing is included. In particular, one leads increased volume to a the transmission stiffness of the hydraulic column formed by the coupling space reducing compressibility.
- the valve according to the invention with the characteristic Features of claim 1 have the advantage over the other that the coupling space always remains sufficiently filled and via the filling valve coupling fluid only in Direction of coupling space from an existing volume unlimited refill can flow.
- A is disadvantageous change in length of the entire device avoided and a high transmission rigidity achieved. This also applies if the piezo actuator, the valve or the housing its length e.g. change when heated should, because such a change in length in the coupling space is compensated for by licking.
- the device has a simple structure and works safely and reliably.
- FIG. 1 shows a fuel injection valve in section
- Figure 2 shows a first embodiment of a filling valve
- Figure 3 shows a second embodiment a filling valve
- Figure 4 is a diagram the timing of the filling
- Figure 5 a third Embodiment of a filling valve
- Figure 6 a Modification of the design according to Figure 5
- Figure 7 a Detail of the embodiment according to Figure 6
- Figure 8 a Modification of the design according to Figure 6 and Figure 9 a another version of the types according to Figures 6 and 8.
- the valve according to the invention is used in a Fuel injector, which is mainly in the Section is shown in Figure 1.
- This injector has a valve housing 1, in which in a Longitudinal bore 2 is a valve needle 3, which is also in known way not shown here by a Closing spring can be preloaded in the closing direction.
- On At one end is the valve needle with a conical shape
- Provide sealing surface 4 on the protruding into the combustion chamber Tip 5 of the valve housing cooperates with a seat 6, from which lead out injection openings that the inside of the Injection valve, here with the valve needle 3 surrounding filled annular space under fuel under injection pressure 7 connect to the combustion chamber so as to close an injection complete when the valve needle is lifted from its seat Has.
- the annular space is with a further pressure space 8 connected, constantly in connection with a pressure line 10 stands over which the fuel injection valve from a High-pressure fuel accumulator 9 fuel under Injection pressure is supplied.
- This high fuel pressure also acts in the pressure chamber 8, and there on one Pressure shoulder 11, via the nozzle needle in a known manner lifted from its valve seat in suitable conditions can be.
- valve needle At the other end of the valve needle is in a cylinder bore 12 out there and closes with its end face 14 a control pressure chamber 15 which via a throttle connection 16 is permanently connected to an annular space 17 which, like the pressure chamber 8 always with the high-pressure fuel reservoir communicates.
- Axial leads from control pressure chamber 15 a throttle bore 19 to a valve seat 20 of a control valve 21.
- the valve seat acts Valve member 22 of the control valve together, which in lifted state a connection between the control pressure chamber 15 and one with hydraulic pressure medium, here preferably diesel fuel, which is the device anyway is available, creates filled low-pressure chamber 18, which in turn is constantly connected to a relief room is.
- hydraulic pressure medium here preferably diesel fuel
- valve member 22 In the low pressure chamber 18 is a valve member 22 arranged in the closing direction loading compression spring 24, the the valve member 22 acts on the valve seat 20, so that in the normal position of the control valve the connection between low pressure chamber 18 and control pressure chamber 15 is closed.
- the low pressure space 18 can be considered to the spring arranged there also called the spring chamber become. Since the face of the valve needle in the The area of the control pressure chamber is larger than the area of the Pressure shoulder 11, keeps the same fuel pressure in the Control pressure chamber, which now also prevails in the pressure chamber 8 the valve needle 3 in the closed position. Is this However, valve member 22 is lifted, so the pressure in the the throttle connection 16 from the high-pressure fuel accumulator 9 decoupled control pressure chamber 15 relieved.
- Valve needle 3 possibly against the force of the closing spring quickly and on the other hand can be in the closed position again brought as soon as the valve member 22 in Closing position comes. From that point on, it builds up quickly via the throttle connection 16 the original high Fuel pressure in the control pressure chamber 15 again.
- the control valve has one to it Actuation determined piston 25 on the valve member 22 acts and can be actuated by a piezo actuator 32.
- Piston 25 is in a in a housing part 26 of the Fuel injection valve arranged guide bore 28 tightly guided and limited, as can be seen in Figure 2, with its end face 29 one with hydraulic pressure medium, here fuel, filled coupling space 30 on its opposite wall from one in one Actuator guide bore 39 guided actuator piston 31 larger Diameter is completed, the part of the piezo actuator 32 is and also by one in the coupling space arranged spring 49, 65 (see Figures 3 and 6) with the Piezo actuator can be non-positively coupled.
- Coupling space 30 is used due to the different Piston surfaces of the two pistons 25 and 31 as Translator room by having a small stroke of the Piezo actuator piston 31 in a larger stroke of that Control valve 21 actuating piston 25 translated.
- That has one Relief of the control pressure chamber, which in turn Opening the valve needle 3 causes.
- At the work of the Control valve and the pressure ratio occur in the Coupling space 30 very high pressures.
- this filling valve 33 is in the Embodiment of Figure 2 designed so that the Piston 25 is designed as a stepped piston, the in Diameter of smaller piston part 34 in the guide bore 28 is guided tightly and at the end of the coupling space 30 limited and over a shoulder that a valve seat 35 for the filling valve 33 forms one in diameter larger piston part 78 passes into the spring chamber 18th immersed.
- a closing body 37 of the filling valve 33 is from one in one to the guide hole connecting bore 80 in valve housing 1 tightly guided Piston ring formed, one to the side of the valve 21 as a sealing surface 36 formed end face which is conical is formed and has an annular sealing edge 38 which comes to rest on the valve seat 35. Between the inner Shell surface of the closing body 37 and the piston part 34 is a distance is provided.
- the actuator guide bore 39 and guide bore 28 of the Pistons 25 can especially when increasing pressure in Coupling space 30 leaks occur.
- actuator piston 31 and the actuator guide bore 39 is one leadership-related leakage ring gap 79.
- the Filling of the coupling space 30th from a control room 41, via the filling valve 33 enables.
- the filling valve 33 as Check valve is formed by the closing body 37 by a spring 42, which is supported on the valve housing the valve seat 35 is loaded.
- control valve When the control valve is opened, it lifts on the piston 25 attached valve seat 35 and the control chamber 41 is from Leak oil chamber filled. Presses when closing the valve the piston ring 37 on the valve seat 35 and seals the Control room 41 onwards. This creates in the control room Overpressure, which is due to the selectable stiffness of the Control room 41 can be adjusted. The overpressure causes a leak in the leakage connection 40, which leads to Coupling space 30 is directed. That way then the coupling space is filled. Another advantage is that the piston ring 37 when the filling valve closes 33 acts as a vibration damper.
- FIG. 3 shows a filling valve 43 that immediately is arranged on the coupling space 30.
- a piston has 25 a head 44 whose underside as the closing body 45 of the Filling valve 43 is formed.
- One for the closing body 45 certain valve seat 46 is fixed to the housing 26 intended. It serves as a valve stop.
- Two leadership leaks are with the columns 47 and 48 in the piston 25 and Actuator piston 31 shown.
- the piston 25 is a shaft 27 of a pilsiform valve member 22, and a Compression spring 24 presses the piston 25 against the coupling space 30, in which a spring 49 is additionally arranged.
- the devices shown in Figures 5 to 9 they are all alike in that they have one through hole provided piston 25 and that this Through hole on one side of the piston 25 with a Filling valve are provided.
- Figure 5 one applies the side of the piston 25 facing away from the coupling space 30 arranged filling valve the reference number 54. It will formed by a valve seat 55 on an end face of the Piston 25 and by a closing member 56 on the shaft 27, the only by an appropriately trained end face the shaft 27 is adjusted.
- the piston is preferably 25 spherical on its end face with a flat radius formed by an angular offset from the piston 25 and Compensate control valve 21 and their plan stop.
- the piston 25 is along its entire length provided a through hole 57, the mouth 58 for Reduction of wear (lower Hertzian Compression) is enlarged in diameter, and in one Leakage liquid chamber 59 is located.
- Figure 6 shows a variant in which a filling valve 60 is arranged directly on the coupling space 30. Also here is the piston 25 'along its entire length Through hole 61 provided on their the coupling space 30 facing away into one in a leakage liquid chamber 62 lying cross slot 63 (cf. Figure 7) of the front of the shaft 27 of the Valve member 22 is released.
- the piston 25 ' has also an outer collar 81, on his in the Leakage chamber diving end of the piston allowed to play a little from the closed position lift off the closing member 22 of the control valve 21, before engaging with this outer waistband on a bulkhead 82 of the case drain chamber.
- the filling valve 60 has a hollow conical valve seat 66 at the upper mouth of the through hole 61.
- a ball works as a closing body 67 together, which is subject to the force of a spring 68
- Coupling space 30 is arranged and on the actuator piston 31 supports. Is the pressure below the closing body 67 larger than above, the closing body lifts after the Piston 25 'with its outer collar 81 on the end wall 82 for Plant has come off and it takes place with the opening of the Through hole 61 between the coupling space and Leakage chamber 62 a pressure equalization instead. To do that To keep the volume of the coupling space 30 as small as possible, the ball closing body 67 is lowered in the piston.
- Closing body 69 of a filling valve 70 also only be formed as a spherical section, as in the figure 8 is shown. With a flat valve seat angle is a Small bore diameter of the through bore necessary. Therefore, in the embodiment according to FIG. 8 there is a through hole 71 directly below the closing body 69 provided a constriction 72, below this is the Through hole 71 again.
- Figure 9 shows that it is also possible to use a filling valve 73 with a ball as a closing body 74 and with a To provide valve seat 75 at the lower end of the piston 25.
- a through hole bears the reference number 76 here.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
Claims (18)
- Ventil (22) zum Steuern von Flüssigkeiten mit einem von einer Druckfeder (24) in Schließrichtung zur Auflage auf einen Ventilsitz (20) beaufschlagten Ventilglied (21) mit einen zur Betätigung des Ventilgliedes bestimmten Kolben (25), der einen mit hydraulischem Druckmittel gefüllten Kopplungsraum (30) als bewegliche Wand abschließt, welcher Kopplungsraum andererseits von einem Aktorkolben (31) eines Piezoaktors (32) begrenzt wird, durch dessen Arbeitshub eine Druckerhöhung im Kopplungsraum (30) erzeugbar ist, durch den der Kolben (25) das Ventilglied (21) gegen die Kraft der Druckfeder (24) in Ventil-Öffnungsrichtung verstellbar ist, dadurch gekennzeichnet, daß der Kolben (25) in einer Führungsbohrung (28) geführt wird, zwischen der und der Mantelfläche des Kolbens (25) ein Leckageverbindung gebildet wird, die den Kopplungsraum (30) zu einem hydraulisches Druckmittel bereitstellenden und aufnehmenden Niederdruckraum (18) verbindet und in einer Verbindung zwischen den Kopplungsraum (30) und dem Niederdruckraum (18) ein Befüllungsventil (33, 43, 54, 60, 70, 73) vorgesehen ist, das an dem zur Betätigung des Ventilgliedes (22) bestimmten Kolben (25) angeordnet ist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, daß zwischen dem Kopplungsraum (30) und dem Befüllungsventil (33) ein Steuerraum (41) vorgesehen ist, von dem aus der Kopplungsraum (30) über die Leckageverbindung (40) zwischen nachfüllbar ist.
- Ventil nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß der Kolben (25) als Stufenkolben (25) ausgebildet ist, mit einem im Durchmesser größeren Stufenkolbenteil (34) und einem im Durchmesser kleineren Stufenkolbenteil (78), der dem Kopplungsraum (30) zugekehrt ist und der eine zwischen den Stufen liegende Schulter hat, die Ventilsitz (35) für ein von einer Feder (42) zum Ventilsitz (35) hin belasteten Schließkörper (37) des Befüllungsventil (33) ist.
- Ventil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Schließkörper des Befüllungsventils (33) von einer Stirnfläche (36) eines an seiner Mantelfläche in einer sich an die Führungsbohrung (28) anschließenden Bohrung (80) dicht geführten Kolbenringes (37) gebildet ist.
- Ventil nach Anspruch 5, dadurch gekennzeichnet, daß die Stirnfläche (36) kegelig ist und eine ringförmige Dichtkante (38) aufweist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (25) mit einem im Kopplungsraum (30) angeordneten Kopf (44) versehen ist, der als mit derr Einmündung der Führungsbohrung (28) in den Kopplungsraum (30) zusammenwirkender Schließkörper (45) für das Befüllungsventil (43) ausgebildet ist.
- Ventil nach Anspruch 6, dadurch gekennzeichnet, daß der Kolben (25) fest mit dem Ventilglied (22) gekoppelt ist und durch die Druckfeder (24) zum Kopplungsraum (30) hin beaufschlagt ist, wobei das Befüllungsventil geöffnet wird, wenn das Ventilglied (22) in Schließstellung ist und geschlossen wird, wenn das Ventilglied (22) geöffnet ist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (25) mit einer Durchgangsbohrung (57, 61, 71, 76) versehen ist, über die der Kopplungsraum (30) mit einer Leckageflüssigkeitskammer (59, 62) verbindbar ist, und die Ausmündung der Durchgangsbohrung an einer der Stirnflächen des Kolbens (25) durch das Befüllungsventils (54, 60, 70, 73) gesteuert wird.
- Ventil nach Anspruch 8, dadurch gekennzeichnet, daß der Kolben (25) auf einer seiner Stirnseiten eine Dichtfläche (55, 66, 75) des Befüllungsventils (54, 60, 70, 73) aufweist.
- Ventil nach Anspruch 8, dadurch gekennzeichnet, daß die Stirnfläche eine hohlkegelige, den Austritt der Durchtrittsbohrung umgebende Dichtfläche (66, 75) aufweist, gegen die ein Schließkörpers (67, 69, 74) des Befüllungsventils (60, 70) durch eine Feder (68) gepreßt wird.
- Ventil nach Anspruch 10, dadurch gekennzeichnet, daß der Schließkörper (67, 74) eine Kugel ist.
- Ventil nach Anspruch 10, dadurch gekennzeichnet, daß der Schließkörper (69) als Kugelabschnitt ausgebildet ist.
- Ventil nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, daß die Dichtfläche (66) auf der dem Kopplungsraum (30) zugekehrten Seite des Kolbens (25) angeordnet ist.
- Ventil nach einem der Anspruch 11, dadurch gekennzeichnet, daß die Dichtfläche auf der dem Kopplungsraum (30) abgekehrten Seite des Kolbens (25) angeordnet ist.
- Ventil nach einem der Anspruch 13 oder 24, dadurch gekennzeichnet, daß die Feder sich am Aktorkolben (31) abstützt.
- Ventil nach Anspruch 91, dadurch gekennzeichnet, daß eine Ausmündung (58) der Durchgangsbohrung (57) in die Leckflüssigkeitskammer (59) von der Dichtfläche umgeben ist, die mit der Stirnseite des in die Leckageflüssigkeitskammer ragenden Ventilgliedes (22, 27) als Ventilsitz zusammenwirkt.
- Ventil nach Anspruch 16, dadurch gekennzeichnet, daß die Ausmündung (58) der Durchgangsbohrung (57) in ihrem Durchmesser vergrößert ist.
- Ventil nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß die Dichtfläche (56) eine ballig ausgebildete Stirnfläche des Kolbens (25) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19746143A DE19746143A1 (de) | 1997-10-18 | 1997-10-18 | Ventil zum Steuern von Flüssigkeiten |
DE19746143 | 1997-10-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0909891A1 true EP0909891A1 (de) | 1999-04-21 |
EP0909891B1 EP0909891B1 (de) | 2002-05-29 |
Family
ID=7845971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98111325A Expired - Lifetime EP0909891B1 (de) | 1997-10-18 | 1998-06-19 | Ventil zum Steuern von Flüssigkeiten |
Country Status (4)
Country | Link |
---|---|
US (1) | US6142443A (de) |
EP (1) | EP0909891B1 (de) |
JP (1) | JPH11241781A (de) |
DE (2) | DE19746143A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2815085A1 (fr) * | 2000-10-05 | 2002-04-12 | Denso Corp | Structure perfectionnee d'injecteur de carburant destinee a eviter l'injection d'une quantite excessive de carburant |
EP1406006A1 (de) * | 2002-10-04 | 2004-04-07 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
WO2016059059A1 (de) * | 2014-10-15 | 2016-04-21 | Continental Automotive Gmbh | Einspritzventil zum einspritzen von fluid in einen brennraum einer brennkraftmaschine |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19743669A1 (de) * | 1997-10-02 | 1999-04-08 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE19843534A1 (de) * | 1998-09-23 | 2000-03-30 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19859484A1 (de) * | 1998-12-22 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoff-Einspritzventil für eine Hochdruckeinspritzung |
JP4038941B2 (ja) * | 1999-08-02 | 2008-01-30 | 株式会社デンソー | ピエゾインジェクタ |
DE19939520C2 (de) * | 1999-08-20 | 2001-06-07 | Bosch Gmbh Robert | Einspritzsystem und Verfahren zum Betreiben eines Einspritzsystems |
DE19940300A1 (de) * | 1999-08-25 | 2001-03-01 | Bosch Gmbh Robert | Steuerventil für einen Injektor |
DE19946831C1 (de) * | 1999-09-30 | 2001-07-12 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE19946828C1 (de) * | 1999-09-30 | 2001-07-12 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE19946830A1 (de) * | 1999-09-30 | 2001-05-03 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE19949528A1 (de) * | 1999-10-14 | 2001-04-19 | Bosch Gmbh Robert | Doppelschaltendes Steuerventil für einen Injektor eines Kraftstoffeinspritzsystems für Brennkraftmaschinen mit hydraulischer Verstärkung des Aktors |
DE19951964A1 (de) * | 1999-10-28 | 2001-05-03 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE10000575A1 (de) * | 2000-01-10 | 2001-07-19 | Bosch Gmbh Robert | Einspritzdüse |
DE10002270C1 (de) * | 2000-01-20 | 2001-06-28 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
US6570474B2 (en) | 2000-02-22 | 2003-05-27 | Siemens Automotive Corporation | Magnetostrictive electronic valve timing actuator |
DE10019766A1 (de) * | 2000-04-20 | 2001-10-31 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
WO2002031349A1 (en) | 2000-10-11 | 2002-04-18 | Siemens Vdo Automotive Corporation | Compensator assembly having a pressure responsive valve for a solid state actuator of a fuel injector |
DE10055644A1 (de) * | 2000-11-10 | 2002-05-23 | Siemens Ag | Verfahren zum Einstellen eines Leerhubs eines Injektors, wobei der Leerhub durch eine Aktoreinheit mit einem elektrisch ansteuerbaren Aktor und einen vom Aktor betätigten Ventilkolben gebildet wird |
WO2002038948A1 (en) * | 2000-11-13 | 2002-05-16 | Siemens Vdo Automotive Corporation | Magneto-hydraulic compensator for a fuel injector |
US6793161B1 (en) * | 2000-11-17 | 2004-09-21 | Isuzu Motors Limited | Needle lift damper device of injector for fuel injection and needle lift damping method |
DE10101796A1 (de) * | 2001-01-17 | 2002-07-18 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE10102684A1 (de) * | 2001-01-22 | 2002-08-08 | Bosch Gmbh Robert | Vorrichtung zur Formung eines flexiblen Einspritzdruckverlaufes mittels eines schaltbaren Aktors |
DE10133265A1 (de) * | 2001-07-09 | 2003-01-23 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10140529A1 (de) * | 2001-08-17 | 2003-03-06 | Bosch Gmbh Robert | Piezoelektrisches Aktormodul |
DE10140796A1 (de) | 2001-08-20 | 2003-03-06 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US6766965B2 (en) * | 2001-08-31 | 2004-07-27 | Siemens Automotive Corporation | Twin tube hydraulic compensator for a fuel injector |
DE10162045B4 (de) * | 2001-12-17 | 2005-06-23 | Siemens Ag | Vorrichtung zum Übersetzen einer Auslenkung eines Aktors, insbesondere für ein Einspritzventil |
DE10163693A1 (de) * | 2001-12-21 | 2003-07-10 | Orange Gmbh | Einspritzinjektor für Brennkraftmaschinen |
US6749127B2 (en) | 2002-02-11 | 2004-06-15 | Siemens Vdo Automotive Corporation | Method of filling fluid in a thermal compensator |
AU2003201421A1 (en) * | 2002-02-22 | 2003-09-09 | Crt Common Rail Technologies Ag | Fuel injection valve for internal combustion engines |
DE10213382A1 (de) * | 2002-03-26 | 2003-10-16 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
DE10213858A1 (de) * | 2002-03-27 | 2003-10-30 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US20050087624A1 (en) * | 2002-05-10 | 2005-04-28 | Siemens Aktiengesellschaft | Injector for fuel injection |
US6811093B2 (en) * | 2002-10-17 | 2004-11-02 | Tecumseh Products Company | Piezoelectric actuated fuel injectors |
DE10318639A1 (de) * | 2003-04-24 | 2004-11-11 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE10322673A1 (de) * | 2003-05-20 | 2004-12-09 | Robert Bosch Gmbh | Ventil zum Steuern von Flüssigkeiten |
DE102004025729A1 (de) | 2004-05-26 | 2005-12-15 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für eine Brennkraftmaschine |
JP4214962B2 (ja) * | 2004-07-08 | 2009-01-28 | 株式会社デンソー | 駆動力伝達装置およびインジェクタ |
US20060045767A1 (en) * | 2004-08-26 | 2006-03-02 | Alvin Liknes | Method And Apparatus For Removing Liquids From Wells |
US7307371B2 (en) * | 2005-11-18 | 2007-12-11 | Delphi Technologies, Inc. | Actuator with amplified stroke length |
DE102006031567A1 (de) * | 2006-07-07 | 2008-01-10 | Siemens Ag | Einspritzsystem und Verfahren zum Herstellen eines Einspritzsystems |
GB2464954B (en) * | 2008-10-30 | 2012-06-20 | Univ Open | Valve |
US9316323B2 (en) * | 2012-06-14 | 2016-04-19 | Fisher Controls International Llc | Hydraulic mechanism for valves |
US9562497B2 (en) * | 2014-06-18 | 2017-02-07 | Caterpillar Inc. | Engine system having piezo actuated gas injector |
DE102014220779A1 (de) * | 2014-10-14 | 2016-04-14 | Continental Automotive Gmbh | Einspritzventil zum Einspritzen von Fluid in einen Brennraum einer Brennkraftmaschine |
US10081440B2 (en) * | 2016-02-26 | 2018-09-25 | Hamilton Sundstrand Corporation | Ram air turbine release mechanism with stroke amplification |
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- 1997-10-18 DE DE19746143A patent/DE19746143A1/de not_active Withdrawn
-
1998
- 1998-06-19 DE DE59804229T patent/DE59804229D1/de not_active Expired - Fee Related
- 1998-06-19 EP EP98111325A patent/EP0909891B1/de not_active Expired - Lifetime
- 1998-10-15 JP JP10293629A patent/JPH11241781A/ja active Pending
- 1998-10-19 US US09/174,404 patent/US6142443A/en not_active Expired - Fee Related
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US5209453A (en) * | 1989-11-20 | 1993-05-11 | Nippondenso Co., Ltd. | Laminated type piezoelectric apparatus |
EP0477400A1 (de) * | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | Anordnung für einen in Hubrichtung wirkenden adaptiven, mechanischen Toleranzausgleich für den Wegtransformator eines piezoelektrischen Aktors |
GB2296940A (en) * | 1995-01-12 | 1996-07-17 | Bosch Gmbh Robert | Metering valve actuation |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2815085A1 (fr) * | 2000-10-05 | 2002-04-12 | Denso Corp | Structure perfectionnee d'injecteur de carburant destinee a eviter l'injection d'une quantite excessive de carburant |
US6729554B2 (en) | 2000-10-05 | 2004-05-04 | Denso Corporation | Structure of fuel injector for avoiding injection of excess quantity of fuel |
EP1406006A1 (de) * | 2002-10-04 | 2004-04-07 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
WO2016059059A1 (de) * | 2014-10-15 | 2016-04-21 | Continental Automotive Gmbh | Einspritzventil zum einspritzen von fluid in einen brennraum einer brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
US6142443A (en) | 2000-11-07 |
JPH11241781A (ja) | 1999-09-07 |
EP0909891B1 (de) | 2002-05-29 |
DE59804229D1 (de) | 2002-07-04 |
DE19746143A1 (de) | 1999-04-22 |
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