EP0714481B1 - Vorrichtung und verfahren zum einstellen eines ventilhubs - Google Patents
Vorrichtung und verfahren zum einstellen eines ventilhubs Download PDFInfo
- Publication number
- EP0714481B1 EP0714481B1 EP95917264A EP95917264A EP0714481B1 EP 0714481 B1 EP0714481 B1 EP 0714481B1 EP 95917264 A EP95917264 A EP 95917264A EP 95917264 A EP95917264 A EP 95917264A EP 0714481 B1 EP0714481 B1 EP 0714481B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- infeed
- stroke
- adjusting device
- determined
- 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
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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the 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
- F02M2200/24—Fuel-injection apparatus with sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49247—Valve lifter making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49298—Poppet or I.C. engine valve or valve seat making
- Y10T29/49306—Valve seat making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49771—Quantitative measuring or gauging
- Y10T29/49776—Pressure, force, or weight determining
Definitions
- the invention is based on one device and one Method of adjusting a valve lift, in particular a valve needle stroke of an injection valve Internal combustion engine according to the genus of the respective independent claims.
- An injection valve according to DE-A1 40 26 721 has one Valve housing a valve seat body, which with a Housing fixed hole body is connected. On the A valve needle sits with a valve seat body Valve closing body. The exact setting of the Valve needle lifts take place on the fully assembled Injector by the perforated body attached to the housing plastically deformed in the direction of the valve closing body becomes. Due to the deformation of the perforated body Valve needle stroke from a preset size to one required valve lift reduced. With the valve needle stroke becomes the static flow rate of the injector fixed.
- a rational manufacture of a valve requires that the Setting the valve lift in a flow production process can be integrated. This also requires that the valve lift with high repeatability is adjustable.
- the device according to the invention with the characteristic Features of claim 1 has the advantage that a Displacement of the valve seat by means of a plastic one Deformation of the perforated body with high repeatability at high delivery speed of the compression stamp is possible. This will adjust the valve lift reaches a cycle time that integrates into one Flow manufacturing process enabled.
- the procedure is based on a self-learning setting procedure for stroke adjustment and consists of a learning phase and a stroke end adjustment phase together. Through that achievable optimization of the parameters is as possible short cycle time, best quality achieved. By editing the parameter it is also possible to follow the procedure for use different valve types.
- FIG. 1 shows a cross section of an end on the nozzle side a fuel injection valve
- Figure 2 a Schematic representation of a side view of the invention Device
- Figure 3 corresponding to a sectional view the lines III-III according to Figure 2
- Figure 4a a first part a process flow chart for determining a valve lift during adjustment
- Figure 4b shows a second part of the Process flow chart according to Figure 4a.
- the injector 20 shown has a tubular one Seat support 21 with a longitudinal opening 23 in the for example, a tubular valve needle 24 is arranged with a spherical valve closing body 25 in a guide opening 26 of a valve seat body 27 lies on. On the valve closing body 25 facing away The end face is the valve seat body 27 with a perforated body 28 concentrically and firmly welded.
- the perforated body 22 has a cup-shaped cross-section with a circumferential Holding edge 29 on.
- the perforated body 28 is in the longitudinal opening 23 with the holding edge on the wall of the longitudinal opening 23 for example by a circumferential and tight weld seam 22 connected.
- the schematic diagram of the device according to the invention 2 shows a mounted on a base plate 10 massive frame 11, a measuring device 30, one on the Frame 11 attached clamping device 40 and a Adjustment device 50.
- a column guide 14 with a Guide rod 15 attached.
- the guide rod 15 is with connected to a boom 16 on which the measuring device 30th is attached.
- On the boom 16 also engages Piston rod 17 of a pneumatic actuating cylinder 18.
- In an injection valve 20 is centered on the tensioning device 40 and stretched from the bottom up.
- the measuring device 30 is a high-resolution measuring system and has a touch probe 31, which on a Actuator 32 acts.
- the probe measuring device 31 has one in a high-precision ball guide, not shown guided measuring slide 33 with a measuring mandrel 34 on, which is made of hard metal, for example. Of the Travel sensor 32 is firmly connected to the measuring slide 33.
- a replaceable is on the housing of the probe measuring device 31 Stop 35 attached with which the stop paths for different injectors can be specified.
- the measuring device 30 is such from the feed cylinder 18 delivered that the mandrel 34 through the hollow valve needle 24 passes through and on the valve closing body 25 sits on.
- the stop 35 then lies on the housing 21 of the injection valve.
- the displacement sensor 32 delivers electrical measurement signal, which is used for valve lift detection and evaluated by the controller for the setting process becomes.
- a Light barrier provided, which when activated Delivery cylinder 18 causes the measuring device 30 in the to retract the upper starting position.
- the structure of the clamping device 40 and the Adjustment device 50 is shown in Figure 3.
- the Clamping device 40 has an upper part 41 and a lower part 42 existing solid support 43. Between the support parts 41 and 42 is off for example two parts of existing, horizontal Movable centering slide 44 arranged with a axial play, the injector 20 at one Undercut spans. To play the Slider 44 is not in the lower support part 42 Ball lock shown provided.
- In the upper part of the support 41 is a receptacle 45 with not shown Centering for the injection valve 20 inserted. Of the Centering slide 44 is, for example, not closer shown actuators 46 moves axially, wherein the movement of pneumatic cylinders, not shown is performed.
- the lower support part 42 has one Recess 47 through which the nozzle end of the Injection valve 20 protrudes.
- the adjustment device 50 is located below the carrier 40 a pressing unit 51 and a delivery unit 52 arranged.
- the pressing unit 51 has a pressing mandrel 53 with a central bore 54 in which a Verschlagstempel 55 is inserted.
- the mandrel 53 is low friction, for example in a ball guide 56 mounted, the ball guide 56 in a base body 57 is recorded.
- the pressing mandrel 53 has an elastic ring 58, which the ball cage in the unloaded state in Pushes the working position back so that during the pressing process only rolling friction and no sliding friction occurs.
- a pressure bell 60 for example, over two Guide pin 61 is connected to the base body 57, the guide pin 61 axially displaceable in Base body 57 are mounted.
- protruding bolts 62 protrude, for example attack the pressure bell 60 and use the Push the spring force onto the injection valve 20 from below, so that the axial clamping play of the injector 20 in Centering slide 44 is eliminated.
- the base body 57 is screwed to a yoke 63, which carries two guide rods 65 of the delivery unit 52.
- the two guide rods 65 are each in two Guide bushings 66 mounted on the frame 11 attached are.
- a Propulsion unit 67 performed in the present Embodiment is a threaded roller screw drive.
- the Propulsion unit 67 has two more with a housing 68 connected bushings 69 on the leadership of the Realize propulsion unit 67 on the guide rods 66.
- a threaded nut 70 is arranged in the a threaded spindle 71 is guided.
- the threaded spindle 71 has a shaft on which a collar 73 is turned.
- Collar 73 is supported on an axial / radial bearing 75, which on a support 76 fixed on the frame 11 lies on.
- a pulley sits on the threaded spindle 71 77, which has a toothed belt 78 with a not shown stepper motor is connected.
- a cup-shaped receptacle is located on the drive side on yokes 63 80 for a coil spring 81.
- the yoke 63 is coaxial with Molding mandrel 53 out an opening 64 in which a bushing 83 is positioned with a force sensor 82.
- the socket 83 contains an overload protection.
- the cup-shaped receptacle 80 has a bushing 85 in the bottom on the drive side which engages a cylindrical projection 86 of the housing 68 and a thrust washer 87 is attached to the end face thereof, on which a coil spring 81 is seated.
- the displacement of the pressing mandrel 53 is the Propulsion unit 67 generated, the resulting Pushing force via the coil spring 81 and the force sensor 82 is transferred to the mandrel 53.
- the force sensor 82 serves to identify the approach point of the Crimping die 55 on the hole body 28 of the injection valve 20. Furthermore, the force sensor 82 is used to monitor the Force values during the setting process.
- An injection valve 20 is in the receptacle 45 of the Clamping device 40 used and by means of Centering slide 44 cocked. After pressing the Centering slide 44 is the adjusting unit 50 to the introduced nozzle-side end of the injector 20. This happens by pressing the not shown Stepper motor, whereby the propulsion unit 67 the Pushing unit 51 from force sensor 82 is monitored so far delivers until the punch 55 on the perforated body 28 of the Injector 20 is present. This will over at the same time the leading, spring-loaded pressure bell 60 that Injection valve 20 against the centering slide 44 Clamping device 40 pressed. This guarantees that the injection valve 20 according to the puncture plan area aligns and axially free of play from the centering slide 44 is held.
- the measuring device 30 is now from the feed cylinder 18 delivered until the stop 35 on the injection valve 20th and the measuring mandrel 34 is seated on the valve closing body 25.
- the stepper motor is now the Propulsion unit 67 actuated, the feed movement of the coil spring 81 acting as an energy store is recorded. Due to the spring characteristic of Coil spring 81 is the of the feed movement of the Propulsion unit 67 stored in the coil spring 81 Force via the force sensor 82 on the pressing mandrel 53 and transfer the punch 55 to the perforated body 28, which due to the acting force of, for example a maximum of 1600 to 1700 Newtons is plastically deformed.
- the Compression spring 81 acts as a translation and allows one fast approach and delivery speed of the Delivery unit 52.
- FIGS 4a and 4b show a process flow chart Determination of what is to be carried out by the adjusting device 50 Delivery path of the Verpressstkovs 55 for setting the Injector valve lift 20 preset actual stroke of the valve needle 24 and the desired stroke is the delivery distance as the target difference detected.
- a starting step number for the stepper motor as infeed for the punch 55 determined.
- Step 103 checks whether the target value of the delivery route is reached. If the target value is not reached, a new step number determined according to step 104 and again the delivery route realized with this number of steps measured.
- the Steps 101 to 104 are repeated until the Target value according to step 103 has been reached. Steps 101 up to 104 are therefore a learning phase.
- step 105 the pressing stamp 55 becomes retracted (step 105).
- step 106 the stroke of the valve needle 24 is measured again and checked according to step 107 whether the stroke is within a predetermined tolerance. If the stroke is within the predetermined tolerance, the crimping process is ended (Step 108). If the stroke is not within the specified range Tolerance, according to step 109 is not one Computer unit shown a characteristic curve using values realized after the first delivery process.
- the Characteristic is not linear and has for each injector a different course, which depends on several factors is, for example from the beginning stroke, from the inclined position of the Perforated body 28, of material and geometry differences of the Perforated body 28 and the spring back travel and the Elasticity due to the welding of the perforated body 28 can be different.
- step 109 Using the characteristic curve determined in step 109, the Reaching the target valve lift required number of steps for determined a second delivery process in step 110 and in step 111 the target delivery route as the second target value calculated. Subsequently, the stepper motor with the one from the Characteristic curve delivered step count determined (step 112) and measured the delivery route again (step 113). In step 114 it is checked whether the measured delivery route is the new one Has reached the target value of the target delivery route. Is the Condition according to step 114 is not met, is according to Step 115 calculates a correction step number and the Steps 112, 113, 114 and 115 are repeated until until the condition according to step 114 is fulfilled.
- step 116 the displacement stamp 55 is repeated retracted and thus relieves the perforated body 28. in the valve needle stroke is relieved from the Measuring device 30 determined (step 117). According to step 118 it is checked whether the valve needle stroke within the Tolerance range. If the tolerance range is reached, the crimping process is ended (step 119).
- step 120 If the determined valve needle stroke is not within the Tolerance, it is checked in step 120 whether the valve needle stroke is still too big. If the condition according to step 120 does not is reached, the target valve stroke is already undershot and the injection valve is discarded in accordance with step 121. Is the stroke, on the other hand, is still too large, becomes the step 122 Number of delivery processes queried. For example Already delivered three times, the injection valve is in accordance with Step 121 also discarded. Been less than three Once the delivery processes have been carried out, the program goes back to Step 110, and the characteristic curve becomes one again Number of steps and another target value for a delivery route determined a third delivery process. Steps 111 to 122 repeat themselves accordingly.
- the procedure is not based on setting the valve lift restricted by injectors. It is applicable to everyone Stroke settings in which at least one is formed Stroke limitation is set.
Description
Claims (15)
- Vorrichtung zum Einstellen eines Ventilhubs, insbesondere des Ventilnadelhubs eines Einspritzventils (20) einer Brennkraftmaschine, mit welcher ein in einem Gehäuse (21) des Ventils (20) voreingestellter Ventilsitz (27) mittels plastischer Verformung axial im Gehäuse (21) verschiebbar ist, dadurch gekennzeichnet, daß eine Verstelleinrichtung (50) vorgesehen ist, welche in Richtung der plastischen Verformung eine Zustellbewegung für ein Verdrückwerkzeug (53, 55) erzeugt, daß eine Meßeinrichtung (30) angeordnet ist, welche den durch die plastische Verformung des Ventilsitzes (27) veränderbaren Ventilhub ermittelt und mit einem vorgegebenen Sollwert vergleicht, daß die Verstelleinrichtung (50) anhand des Soll-/Istwertvergleichs steuerbar ist und daß bei einer Abweichung des Ventilhubs von einer vorgegebenen Toleranz anhand von in einem ersten Zustellvorgang realisierten Werten eine Kennlinie gebildet wird, aus der eine weitere Zustellung für mindestens einen weiteren Zustellvorgang ermittelt wird.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Verstelleinrichtung (50) und Verdrückwerkzeug (53, 55) ein Federelement (81) angeordnet ist, welches die Zustellbewegung unter Ausnutzung einer elastischen Formänderung in eine Kraft für das Verdrückwerkzeug (53, 55) überführt.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Federelement (81) eine Druckfeder ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Verstelleinrichtung (50) und Verdrückwerkzeug (53, 55) ein Kraftsensor (82) angeordnet ist, mit welchem der Anschlag des Verdrückwerkzeugs (53, 55) an den Ventilsitz (27) mittels einer eingestellten zulässigen Anfangskraft ermittelbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verstelleinrichtung (50) eine Verdrückeinheit (51) und eine Zustelleinheit (52) enthält, daß die Verdrückeinheit (51) eine reibungsarme Führung (56) für das Verdrückwerkzeug 53, 55) aufweist, und daß die Zustelleinheit (52) als Gewindeschraubtrieb (67) ausgeführt ist, der die Zustellbewegung erzeugt.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Gewindeschraubtrieb (52) von einer an einem Grundkörper (11) gehaltenen Führung (65, 66) geführt ist und daß der Gewindeschraubtrieb (52) von einem Schrittmotor antreibbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Spanneinrichtung (40) vorgesehen ist, welche das Ventil (20) mit einem Zentrierschieber (44) spannt.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Ventil (20) vom Zentrierschieber (44) mit einem axialen Spiel behaftet spannbar ist und daß die Verstelleinrichtung (50) über eine am Ventil (20) angreifende Werkstückaufnahme (60) verfügt, welches das vom Zentrierschieber (44) verursachte axiale Spiel mittels einer auf das Ventil (20) axial wirkenden Spannkraft überwindet.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Werkstückaufnahme (60) an der Verstelleinrichtung (50) überfedert gelagert ist, derart, daß die Federkraft die axiale Spannkraft erzeugt.
- Verfahren zum Einstellen eines Ventilhubs, insbesondere eines Ventilnadelhubs eines Einspritzventils (20), bei dem mit einem Verdrückwerkzeug (53, 55) ein voreingestellter Ventilsitz (27) durch plastische Verformung axial verstellt wird, dadurch gekennzeichnet, daß das Verdrückwerkzeug (53, 55) mit einem ersten Zustellvorgang zugestellt wird und daß bei einer Abweichung des Ventilhubs von einer vorgegebenen Toleranz anhand von im ersten Zustellvorgang realisierten Werten eine Kennlinie gebildet wird, aus der eine weitere Zustellung für mindestens einen weiteren Zustellvorgang ermittelt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die Kennlinie aus mindestens zwei hintereinander ablaufenden Zustellungen und des dadurch realisierten Zustellweges während des ersten Zustellvorganges ermittelt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die weitere Zustellung aus der Kennlinie und dem momentanen Ventilhub ermittelt wird.
- Verfahren nach Anspruch 12, dadurch gekennzeichnet, daß der momentane Ventilhub im entlasteten Zustand des Ventilsitzes (27) ermittelt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß als Zustellung eine Schrittzahl eines Schrittmotors eingesetzt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß nach dem ersten Zustellvorgang das Verformen des Ventilsitzes (27) beendet wird, wenn der Ventilhub bereits mit diesem Zustellvorgang erreicht ist.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4416492 | 1994-05-10 | ||
DE4416492 | 1994-05-10 | ||
DE19512338A DE19512338A1 (de) | 1994-05-10 | 1995-04-01 | Vorrichtung und Verfahren zum Einstellen eines Ventilhubs |
DE19512338 | 1995-04-01 | ||
PCT/DE1995/000576 WO1995030830A1 (de) | 1994-05-10 | 1995-04-29 | Vorrichtung und verfahren zum einstellen eines ventilhubs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0714481A1 EP0714481A1 (de) | 1996-06-05 |
EP0714481B1 true EP0714481B1 (de) | 1999-03-03 |
Family
ID=25936484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95917264A Expired - Lifetime EP0714481B1 (de) | 1994-05-10 | 1995-04-29 | Vorrichtung und verfahren zum einstellen eines ventilhubs |
Country Status (6)
Country | Link |
---|---|
US (1) | US5787583A (de) |
EP (1) | EP0714481B1 (de) |
JP (1) | JP3522281B2 (de) |
CN (1) | CN1057587C (de) |
BR (1) | BR9506196A (de) |
WO (1) | WO1995030830A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7181409B1 (en) | 1999-07-07 | 2007-02-20 | The Regents Of The University Of California | Shared vehicle system and method involving reserving vehicles with highest states of charge |
DE19956256B4 (de) * | 1999-11-23 | 2004-04-08 | Siemens Ag | Leerhubeinstellung zwischen einem Aktor und einem Übertragungselement eines Ventils in einem Kraftstoffinjektor |
DE10052146A1 (de) * | 2000-10-20 | 2002-05-08 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US20060027261A1 (en) * | 2004-08-04 | 2006-02-09 | Plevich Chuck W | Method for repair of regulator poppet and seat |
DE102004018386A1 (de) * | 2004-04-16 | 2005-11-03 | Ina-Schaeffler Kg | Verfahren zum Einstellen des Kugelhubs eines Ventilspielausgleichselements |
DE102005032461A1 (de) * | 2005-07-12 | 2007-01-25 | Robert Bosch Gmbh | Aktive Ankerhubeinstellung bei Kraftstoffinjektoren |
JP4491474B2 (ja) * | 2007-05-31 | 2010-06-30 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁及びそのストローク調整方法 |
KR20090064013A (ko) * | 2007-12-14 | 2009-06-18 | 현대자동차주식회사 | 연속 가변 밸브 리프트 장치 |
JP5537493B2 (ja) * | 2011-05-13 | 2014-07-02 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁のストローク調整方法及び燃料噴射弁 |
CN106935300B (zh) * | 2015-12-31 | 2019-07-12 | 中核建中核燃料元件有限公司 | 一种燃料棒自动压簧装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2936425A1 (de) * | 1979-09-08 | 1981-04-02 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betaetigbares kraftsoffeinspritzventil |
DE3031564A1 (de) * | 1980-08-21 | 1982-04-08 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisches kraftstoffeinspritzventil und verfahren zur herstellung eines elektromagnetischen kraftstoffeinspritzventiles |
US4610080A (en) * | 1985-07-29 | 1986-09-09 | Allied Corporation | Method for controlling fuel injector lift |
DE4026721A1 (de) * | 1990-08-24 | 1992-02-27 | Bosch Gmbh Robert | Einspritzventil und verfahren zur herstellung eines einspritzventils |
DE4221185A1 (de) * | 1992-06-27 | 1994-01-05 | Bosch Gmbh Robert | Spritzlochscheibe für ein Ventil und Verfahren zur Herstellung |
-
1995
- 1995-04-29 WO PCT/DE1995/000576 patent/WO1995030830A1/de active IP Right Grant
- 1995-04-29 JP JP52859295A patent/JP3522281B2/ja not_active Expired - Fee Related
- 1995-04-29 BR BR9506196A patent/BR9506196A/pt not_active IP Right Cessation
- 1995-04-29 CN CN95190372A patent/CN1057587C/zh not_active Expired - Fee Related
- 1995-04-29 EP EP95917264A patent/EP0714481B1/de not_active Expired - Lifetime
- 1995-04-29 US US08/591,483 patent/US5787583A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH09500435A (ja) | 1997-01-14 |
CN1128059A (zh) | 1996-07-31 |
JP3522281B2 (ja) | 2004-04-26 |
US5787583A (en) | 1998-08-04 |
BR9506196A (pt) | 1996-04-23 |
EP0714481A1 (de) | 1996-06-05 |
WO1995030830A1 (de) | 1995-11-16 |
CN1057587C (zh) | 2000-10-18 |
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