EP0675281B1 - Einspritzventil für eine insbesondere als Dieselmotor vorgesehene Brennkraftmaschine - Google Patents
Einspritzventil für eine insbesondere als Dieselmotor vorgesehene Brennkraftmaschine Download PDFInfo
- Publication number
- EP0675281B1 EP0675281B1 EP95103548A EP95103548A EP0675281B1 EP 0675281 B1 EP0675281 B1 EP 0675281B1 EP 95103548 A EP95103548 A EP 95103548A EP 95103548 A EP95103548 A EP 95103548A EP 0675281 B1 EP0675281 B1 EP 0675281B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- control
- chamber
- valve member
- nozzle needle
- 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 40
- 239000007924 injection Substances 0.000 title claims description 40
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010010774 Constipation Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- F02M55/008—Arrangement of fuel passages inside of 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
Definitions
- the invention relates to an injection valve for a particular as a diesel engine provided internal combustion engine, with one in a valve housing slidably arranged nozzle needle, which is used to inject Fuel an injection opening leading into a fuel cylinder closes or opens and the opposite in a control chamber protrudes with a high-pressure part containing a control medium on the one hand and via a line part and a closable part Control valve is connected to a drain line on the other hand, wherein a further valve is provided, which a by automatic opening additional connection between the high pressure part and the control chamber produces when the nozzle needle executes the closing movement, which causes an increased closing speed.
- a generic injection valve according to EP-A1 0 426 205 is the control chamber in which the nozzle needle with its upper end protrudes, on the one hand via a throttle bore with the high pressure part and on the other hand via a hole and via a closing it Valve body connected to a drain line.
- the pressure in the control chamber drops uiid it opens the nozzle needle due to the on its the Injection opening facing underside unchanged with high pressure acting fuel.
- the nozzle needle moves up to an upper one Stop, which is formed by another valve body.
- valve body is arranged coaxially with the nozzle needle and its the upper end face is acted upon by the high pressure part of the control medium on a cross-section of two or more holes formed approximately vertically to it.
- the object of the present invention is to: To further develop the injection valve according to the type described in the introduction, that an optimal closing speed of his nozzle needle What is achieved is that it works flawlessly even after a long period of operation and reliable functioning is guaranteed and its Manufacturing simple and with less demands on the Manufacturing tolerances can be realized.
- control valve body starting from its front valve seat and with the line part communicating bore provided in the interior of the control valve body for the purpose of generating one in the closing direction acting closing force is expanded and moreover by one in the control valve body longitudinally movable pin is limited, the latter on his the upper end is supported independently of the control valve body.
- this control valve body with an additional Force is applied in the closing direction, causing an increased Security with regard to unwanted opening results.
- Such Danger arises especially at very high, impermissible pressures.
- Fig. Shows an injection valve 2 for a particular as a diesel engine provided internal combustion engine, which is not shown.
- the injector 2 is suitable for a conventional injection system of a diesel engine, so that in this regard to a detailed explanation can be dispensed with. It essentially has a multi-part Valve housing 47, 53, a longitudinally displaceable therein or multi-part nozzle needle 15, the latter actuating, as an electromagnetic valve 227 formed control valve 20, an inflow line 13 for the fuel under high pressure and a drain line 10 on.
- the nozzle needle 15 is in the lower part of one of the inflow line 13 surrounded by fuel-fed storage chamber 14 and it closes or opens one in a fuel cylinder of the diesel engine leading injection opening 4 or its feed line.
- the control chamber 17a is connected to a via the inflow line 13 the fuel-containing high-pressure part on the one hand and over the Line part 19 and this closable control valve 20 with the Drain line 10 connected on the other hand.
- the inflow line 13 is a radial to the injection valve 2 connection 92 is provided, the one the connecting ring 70 encompassing the valve housing 47 and a feed line 13 has a threaded nut 72 pressing against the housing.
- valve 25 In the case of the injection valve 2 shown in detail according to FIG 2 is another according to the invention above this nozzle needle 15 Veutil 25 arranged, which one with your via the inflow line 13 Annular chamber 28 connected to the high pressure part of the control medium and an annular valve seat closing this at the top end 27, which when opening this additional connection between your high pressure part and the control chamber 17a generated.
- valve 25 has a coaxial with nozzle needle 15 extending valve body 26 on the side in the valve housing 47 is performed sealing.
- This cylindrical valve body 26 and that Valve housing 47 together form the annular chamber 28 and the this chamber 28 closing valve seat 27.
- valve body 26th protrudes with one end facing the nozzle needle 15 in the control chamber 17a and with the other end face in one with the Drain line 10 via the additional chamber communicating with the control valve 20 17b, which with the control chamber 17a via a in the valve body 26 through throttle bore 23 is connected and to the circumferential side the valve seat 27 borders.
- the latter is designed that the valve body 26 with its upper oblique ring edge in Closing state sealing against a corresponding ring surface in the Bores the housing and the annular chamber 28 the valve body 26 surrounds at least in its upper region.
- This is conical trained valve seat 27 could also be cylindrical or as flat surface.
- the valve body 26 with a cross, connecting the inflow line 13 to the control chamber 17a Throttle bore 21 provided by means of a permanent connection of the control medium from the high pressure part in this control chamber he follows.
- valve body 26 In the closed position, the valve body 26 has a predetermined distance to the nozzle needle 15 below and on and between this is also a compression spring 96 that presses them apart provided, while in the open position of the nozzle needle 15, which by releasing the control valve 20 and an associated one Pressure drop in the control chamber 17a causes this nozzle needle 15 strikes on the lower end face 16 of the valve body 26.
- the transverse throttle bore 21 Right away after the control valve 20 is closed on the one hand by the transverse throttle bore 21 initially builds up pressure in the additional chamber 17b, consequently the valve body 26 against the nozzle needle 15 moves and thus an automatic opening of the valve seat 27th is effected.
- the valve body 26 has with its upper, which forms the valve seat 27 Ring edge advantageously a similar or slightly smaller Diameter than in its lower, in seal with the valve body 47 standing area. This can influence pressure fluctuations in the supply pressure on the switching behavior of this Valve body 26 can be virtually eliminated.
- the control valve body 38 is further from one in the valve housing 47 held, essentially plate-shaped spring element 58 in Closing direction pressed, which consists of triangular spring segments is composed, which with its inner tips on Attack the control valve body.
- valve body 26a shown in Figure 3 is hollow cylindrical and the nozzle needle 15 extends in this. This enables one relatively larger diameter of the valve body cross section to that of the nozzle needle and a downsizing of the Volume of the control chamber 17a, in particular because the compression spring 96 is arranged outside the valve body 26a. In the further fill the permanent throttle bore 21a in the additional chamber 17b. Otherwise this injection valve 2 is designed the same as that according to FIG. 1 and therefore its remaining configurations are no longer documented in detail.
- the control valve 20 designed as an electromagnetic valve 227 has one Control valve body 38 by a lower end valve seat 57 the vertical and then into a horizontal drain line 10 merging line part 19 in the valve housing 47 closes or opens.
- This control valve body 38 has one of its valve seat 57 outgoing and communicating with the line part 19 60 'on which inside the control valve body 38 for the purpose of generation a closing force acting in the closing direction. is expanded.
- this bore 60 ' is at the top of one in the control valve body 38 coaxially arranged in this longitudinally movable Pin 60 limited, which at its upper end regardless of Control valve body 38, in the present example on the lower Front side of a arranged in the magnetic core 22, with sufficient hardness provided pin is supported.
- the control valve body 38 fastens a magnet armature 62 on the side facing away from the valve seat 57, which is open to a magnetic core 22 of the solenoid valve Position of the valve 20 forms a residual gap, which also between the pin 60 and the magnetic core 22 is provided.
- This remaining gap causes in particular a faster response behavior of the solenoid valve when switching off, which indirectly has a positive effect on the exhaust emissions and affects the efficiency of the internal combustion engine.
- Between the flat lower end face of the magnetic core 22 and the The upper end face of the magnet armature 62 is therefore a residual gap determining non-magnetic, possibly perforated film disk 61 arranged, the pin 60 even when the solenoid valve 227 is activated is provided with end play to the control valve body 38.
- the lower end face of the magnetic core 22 is immediate rests on the film disk 61, which in turn lies on the plane Annular surface of the valve housing is fixed. Otherwise are in the magnet armature 62 recesses 66 are provided, through which when moving a flow around the fuel surrounding the armature is possible.
- recesses 66 are provided, through which when moving a flow around the fuel surrounding the armature is possible.
- FIG 4 is in a further variant of the injection valve 2 in Valve housing 47 formed, leading into the annular chamber 28 Line from several nozzle openings 93 or from a fine-meshed Sieve 94 formed. Both filter inserts are shown in the However, practice would alternatively not use one or the other however both together. Furthermore, the cylindrical valve body 26 with its diameter in the annular chamber 28 forming Area opposite the lower one, in a cylinder part of the valve housing 47 area slightly reduced. This allows the Bore in the cylinder part of the valve housing 47 with a unchanged diameter can be manufactured.
- FIG. 5 Another variant of the injection valve 2 according to FIG. 5 is another a valve body 26b illustrates the transverse throttle bore 21b is arranged below the annular chamber 28 and a narrow annular gap in between creates a certain filter effect.
- injection valves 2 for larger ones Motors will advantageously split the throttle 21 into several smaller cross sections provided. The constipation of an individual Cross-section affects the function, but it does not destruction of the combustion engine, as is the case with existing ones Injectors can occur.
- FIGS. 6 to 9 show different variants of spring elements illustrates which according to Fig. 6 on the outside Scope fixed by a spacer ring 90 against the valve housing 47 are and through which the control valve body 38 extends, which of a respective spring element in the closing direction of the magnetic core 22 is pushed away.
- the spring element 58, 358, 258 can be cruciform, as a leaf spring 358 with side support plates 358 'or plate-shaped be formed with radial slots 258 '.
- These new spring elements are very cheap to manufacture because they are made of stamped sheet metal can be manufactured, and on the other hand they prevent one in the company Natural vibration generation of the same. Due to the low mass of these spring elements is a quick reaction of the Valve causes.
- control medium flowing into the control chambers is usually fuel, which as it were in the storage chamber and subsequently through the injection openings into one Fuel cylinder is injected.
- fuel which as it were in the storage chamber and subsequently through the injection openings into one Fuel cylinder is injected.
- a separate liquid can be used while the fuel would only be provided for injection.
- valve seat 27 causes the valve to close completely annular chamber 28, but it would also be conceivable that this with a or could be provided with several recesses and thereby this valve 20 would function as a throttle valve.
Landscapes
- 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)
Description
- Fig. 1
- einen Längsschnitt durch ein erfindungsgemässes Einspritzventil,
- Fig.2
- einen Ausschnitt des Einspritzventiles nach der Fig.1, in offener Stellung der Düsennadel,
- Fig.3
- bis Fig.5 je eine Ausführungsvariante eines Einspritzventils in teilweisem dargestellten Längsschnitt,
- Fig.6
- das Steuerventil des Einspritzventiles im Längsschnitt,
- Fig.7
- bis Fig.9 je eine Draufsicht auf ein Federelement des Steuerventiles.
Claims (15)
- Einspritzventil für eine insbesondere als Dieselmotor vorgesehene Brennkraftmaschine, mit einer in einem Ventilgehäuse (47) verschiebbar angeordneten Düsennadel (15), die zum Einspritzen von Kraftstoff eine in einen Kraftstoffzylinder führende Einspritzöffnung (4) schliesst oder öffnet und die gegenüberliegend in eine Steuerkammer (17a) ragt, welche mit einem ein Steuermedium enthaltenden Hochdruckteil einerseits und über einen Leitungsteil (19) und ein diesen schliessbares Steuerventil (20) mit einer Abflussleitung (10) andererseits verbunden ist, wobei ein weiteres Ventil (25) vorgesehen ist, das durch selbsttätiges Öffnen eine zusätzliche Verbindung zwischen dem Hochdruckteil und der Steuerkammer (17a) herstellt, wenn die Düsennadel (15) die Schliessbewegung ausführt, wodurch auf diese eine erhöhte Schliessgeschwirtdigkeit bewirkt wird, dadurch gekennzeichnet, dass
das diese zusätzliche Verbindung zwischen dem Hochdruckteil und der Steuerkammer (17a) erzeugende Ventil (25) eine mit dem Hochdruckteil des Steuermediums verbundene Kammer (28) und einen diese stirnseitig bildenden ringförmigen Ventilsitz (27) aufweist. - Einspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass die Kammer (28) und der diese abschliessende Ventilsitz (27) vom Ventilgehäuse (47) sowie von einem in diesem längsverschiebbar geführten zylinderförmigen Ventilkörper (26) gebildet ist, wobei die Kammer (28) den zylinderförmigen Ventilkörper (26) zumindest teilweise umgibt.
- Einspritzventil nach Anspruch 2, dadurch gekennzeichnet, dass der Ventilkörper (26) mit seiner oberen Ringkante im Schliesszustand abdichtend gegen eine Ringfläche einer Gehäusebohrung anliegt, wobei der dadurch gebildete Ventilsitz (27) kegelförmig, zylindrisch oder als ebene Fläche ausgestaltet ist.
- Einspritzventil nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der koaxial zur Düsennadel (15) verlaufende, im Ventilgehäuse (47) seitlich abdichtend geführte Ventilkörper (26) des Ventils (25) mit der einen, der Düsennadel (15) zugekehrten Stirnseite in die Steuerkammer (17a) und mit der andern Stirnseite in eine via das Steuerventil (20) mit der Abflussleitung (10) kommunizierenden Zusatzkammer (17b) ragt, letztere über eine Drosselbohrung (21) mit dem Hochdruckteil und über eine im Ventilkörper (26) durchgehende Drosselbohrung (19) mit der Steuerkammer (17a) verbunden ist, und an diese Zusatzkammer (17b) umfangsseitig der von dem Ventilkörper (26) und dem Ventilgehäuse (47) gebildete Ventilsitz (27) grenzt, welcher sie bei geschlossenem Ventil (25) von der ringförmig ausgebildeten Kammer (28) trennt oder drosselt.
- Einspritzventil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Ventilkörper (26) einen Abstand zu der in Schliessstellung befindlichen Düsennadel (15) aufweist und zwischen diesen überdies eine dieselben auseinanderpressende Druckfeder (96) vorgesehen ist, währenddem in Offenstellung der Düsennadel (15), welche durch ein Freigeben des Steuerventils (20) und einem damit verbundenen Druckabfall in der Steuerkammer (17a) bewirkt wird, diese Düsennadel (15) an der unteren Stirnseite (16) des Ventilkörpers (26) aufschlägt.
- Einspritzventil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass unmittelbar nach Schliessung des Steuerventils (20) einerseits durch die quere Drosselbohrung (21) ein Druckaufbau vorerst in der Zusatzkammer (17b) erfolgt, infolgedessen der Ventilkörper (26) gegen die Düsennadel (15) hin bewegt und damit ein Öffnen des Ventilsitzes (28) bewirkt wird, womit ein zusätzlicher Zustrom des unter Hochdruck stehenden Steuermediums in die Zusatzkammer (17b) erfolgt und dadurch die Düsennadel (15) von dein Ventilkörper (26) mit erhöhter Geschwindigkeit in Schliessstellung gebracht wird.
- Einspritzventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Ventilkörper (26,26b) mit seiner oberen, den Ventilsitz (28) bildenden Ringkante einen grösseren Durchmesser als die Düsennadel (15) in dem in die Steuerkammer (17a) ragenden Bereich aufweist.
- Einspritzventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der von einem Steuerventilkörper (38) des Steuerventils (20) schliessbare Leitungsteil (19) im Ventilgehäuse (47) in einen nachfolgenden Abflussleitung (47) führt, wobei dieser Steuerventilkörper (38) eine von seinem stirnseitigen Ventilsitz (57) ausgehende und mit dem Leitungsteil (19) kommunizierende Bohrung (60') aufweist, welche im Innern des Steuerventilkörpers (38) zwecks Erzeugung einer in Schliessrichtung desselben wirkenden Schliesskraft erweitert ist und überdies von einem im Steuerventilkörper (38) längsbeweglichen Stift (60) begrenzt ist, letzterer an seinem oberen Ende unabhängig vom Steuerventilkörper (38) abgestützt ist.
- Einspritzventil nach Anspruch 8, dadurch gekennzeichnet, dass bei Ausbildung des Steuerventils (20) als Elektromagnetventil (227) an dem Steuerventilkörper (38) auf der dem Ventilsitz (57) abgekehrten Seite ein Magnetanker (62) befestigt ist, welcher bei aktiviertem Magnetkern (22) des Magnetventils (227) zu diesem einen Restspalt einhält, der durch die Teillänge des Stiftes (60) zwischen dein Steuerventilkörper (38) und dem Magnetkern (22) vorgegeben ist.
- Einspritzventil nach Anspruch 9, dadurch gekennzeichnet, dass zwischen der planen unteren Stirnseite des Magnetkerns (22) und der oberen Stirnfläche des Magnetankers (62) eine den Restspalt bestimmende nichtmagnetische Folienscheibe (61) angeordnet ist, wobei der Stift (60) auch bei aktiviertem Magnetventil (227) mit Spiel zwischen dem Magnetanker (62) und dem Steuerventilkörper (38) versehen ist.
- Einspritzventil nach Anspruch 8, dadurch gekennzeichnet, dass der Steuerventilkörper (38) von einem oder mehreren im Ventilgehäuse (47) gehaltenen, im wesentlichen dreieckförmigen Federelement/en (58) in Schliessrichtung gedrückt ist.
- Einspritzventil nach Anspruch 11, dadurch gekennzeichnet, dass das Federelement (58,258,358) mit ihren innenliegenden Spitzen am Steuerventilkörper (38) angreifen und kreuzförmig, als Blattfeder mit seitlichen Stützblechen (358') oder tellerförmig mit radialen Schlitzen (258') ausgebildet ist.
- Einspritzventil nach Anspruch 11, dadurch gekennzeichnet, dass die im Ventilgehäuse (47) ausgebildete, in die ringförmige Kammer (28) führende Leitung zwecks Verhinderung eines Verstopfens der Drosselbohrung (21) mehrere Düsenöffnungen (93), einen Spaltquerschnitt oder ein feinmaschiges Sieb (94) aufweist.
- Einspritzventil nach Anspruch 13, dadurch gekennzeichnet, dass die Düsenöffnungen (93) selbst die vom Hochdruckteil in die Steuerkammer führende Drosselbohrung (21) bilden.
- Einspritzventil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Ventilkörper (26a) annähernd hohlzylindrisch ausgebildet ist, darin sich die Düsennadel (15) erstreckt und darüberhinaus die Steuerkammer (17a) ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00936/94A CH689282A5 (de) | 1994-03-29 | 1994-03-29 | Einspritzventil fuer eine insbesondere als Dieselmotor vorgesehene Brennkraftmaschine. |
CH936/94 | 1994-03-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0675281A1 EP0675281A1 (de) | 1995-10-04 |
EP0675281B1 true EP0675281B1 (de) | 1998-05-06 |
Family
ID=4198629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95103548A Expired - Lifetime EP0675281B1 (de) | 1994-03-29 | 1995-03-11 | Einspritzventil für eine insbesondere als Dieselmotor vorgesehene Brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5655716A (de) |
EP (1) | EP0675281B1 (de) |
JP (1) | JP3707824B2 (de) |
AT (1) | ATE165900T1 (de) |
CH (1) | CH689282A5 (de) |
DE (1) | DE59502083D1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001038721A2 (de) * | 1999-11-24 | 2001-05-31 | Robert Bosch Gmbh | Injektor für unter hochdruck erfolgender kraftstoffeinspritzung |
EP1118765A3 (de) * | 2000-01-19 | 2003-11-19 | CRT Common Rail Technologies AG | Brennstoffeinspritzventil für Verbrennungskraftmaschinen |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19605277B4 (de) * | 1995-02-15 | 2004-06-03 | Nippon Soken, Inc., Nishio | Magnetbetätigtes hydraulisches Steuerventil zur Verwendung im Kraftstoffeinspritzsystem eines Verbrennungsmotors |
JP3653882B2 (ja) * | 1996-08-31 | 2005-06-02 | いすゞ自動車株式会社 | エンジンの燃料噴射装置 |
IT1295462B1 (it) * | 1997-10-02 | 1999-05-12 | Elasis Sistema Ricerca Fiat | Iniettore di combustibile a comando elettromagnetico per motori a combustione interna. |
DE19802244A1 (de) * | 1998-01-22 | 1999-07-29 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE19827267A1 (de) * | 1998-06-18 | 1999-12-23 | Bosch Gmbh Robert | Kraftstoff-Einspritzventil für Hochdruck-Einspritzung mit verbesserter Steuerung der Kraftstoffzufuhr |
US6003790A (en) * | 1998-10-14 | 1999-12-21 | Ford Global Technologies, Inc. | Pre-load mechanism having self-mounting coil spring |
DE19859537A1 (de) * | 1998-12-22 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
DE10025497A1 (de) * | 2000-05-23 | 2001-11-29 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
ITTO20010027A1 (it) * | 2001-01-16 | 2002-07-16 | Fiat Ricerche | Metodo per realizzare iniettori di combustibile ed iniettore di combustibile. |
ES2344695T3 (es) * | 2001-07-03 | 2010-09-03 | Crt Common Rail Technologies Ag | Valvula de inyeccion de combustible para motores de combustion interna. |
DE10132246A1 (de) * | 2001-07-04 | 2003-01-23 | Bosch Gmbh Robert | Kraftstoffinjektor mit hochdruckfestem Zulauf |
EP1293664A3 (de) * | 2001-09-18 | 2004-03-10 | Siemens Aktiengesellschaft | Kraftstoffeinspritzventil für eine Brennkraftmaschine |
EP1296055B1 (de) * | 2001-09-20 | 2006-01-11 | Denso Corporation | Brennstoffeinspritzventil mit drosselnder Lochplatte |
JP2005508475A (ja) * | 2001-11-09 | 2005-03-31 | シーメンス アクチエンゲゼルシヤフト | 蓄圧式噴射システムのインジェクタのための制御モジュール |
AU2003201421A1 (en) * | 2002-02-22 | 2003-09-09 | Crt Common Rail Technologies Ag | Fuel injection valve for internal combustion engines |
US6955114B2 (en) * | 2003-12-05 | 2005-10-18 | Caterpillar Inc | Three way valve and electro-hydraulic actuator using same |
DE502005010478D1 (de) * | 2004-02-25 | 2010-12-16 | Ganser Hydromag | Brennstoffeinspritzventil für verbrennungskraftmaschinen |
US7900604B2 (en) * | 2005-06-16 | 2011-03-08 | Siemens Diesel Systems Technology | Dampening stop pin |
CH697562B1 (de) * | 2005-08-09 | 2008-11-28 | Ganser Hydromag | Brennstoffeinspritzventil. |
EP1991773B1 (de) * | 2006-03-03 | 2013-05-15 | Ganser-Hydromag AG | Brennstoffeinspritzventil für verbrennungskraftmaschinen |
EP2961977B1 (de) * | 2013-03-01 | 2017-06-21 | Ganser-Hydromag AG | Vorrichtung zum einspritzen von brennstoff in den brennraum einer vebrennungskraftmaschine |
GB201314826D0 (en) * | 2013-08-20 | 2013-10-02 | Delphi Tech Holding Sarl | Control Valve Arrangement |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT378242B (de) * | 1981-07-31 | 1985-07-10 | Berchtold Max Prof | Kraftstoffeinspritzanlage fuer brennkraftmaschinen, insbesondere dieselmotoren |
FR2541379B1 (fr) * | 1983-02-21 | 1987-06-12 | Renault | Perfectionnement aux systemes d'injection a commande electromagnetique pour moteur diesel de type pression-temps ou l'aiguille de l'injecteur est pilotee par la decharge puis la charge d'une capacite |
ATE91752T1 (de) * | 1985-12-02 | 1993-08-15 | Marco Alfredo Ganser | Steuereinrichtung fuer elektro-hydraulisch betaetigte kraftstoffeinspritzventile. |
CH668621A5 (de) * | 1986-01-22 | 1989-01-13 | Dereco Dieselmotoren Forschung | Kraftstoffeinspritzanlage fuer eine brennkraftmaschine. |
US5156132A (en) * | 1989-04-17 | 1992-10-20 | Nippondenso Co., Ltd. | Fuel injection device for diesel engines |
-
1994
- 1994-03-29 CH CH00936/94A patent/CH689282A5/de not_active IP Right Cessation
-
1995
- 1995-03-09 US US08/403,002 patent/US5655716A/en not_active Expired - Lifetime
- 1995-03-11 AT AT95103548T patent/ATE165900T1/de active
- 1995-03-11 EP EP95103548A patent/EP0675281B1/de not_active Expired - Lifetime
- 1995-03-11 DE DE59502083T patent/DE59502083D1/de not_active Expired - Lifetime
- 1995-03-28 JP JP06987695A patent/JP3707824B2/ja not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001038721A2 (de) * | 1999-11-24 | 2001-05-31 | Robert Bosch Gmbh | Injektor für unter hochdruck erfolgender kraftstoffeinspritzung |
WO2001038721A3 (de) * | 1999-11-24 | 2001-12-27 | Bosch Gmbh Robert | Injektor für unter hochdruck erfolgender kraftstoffeinspritzung |
US6698673B1 (en) | 1999-11-24 | 2004-03-02 | Robert Bosch Gmbh | Injector for fuel injection taking place under high pressure |
EP1118765A3 (de) * | 2000-01-19 | 2003-11-19 | CRT Common Rail Technologies AG | Brennstoffeinspritzventil für Verbrennungskraftmaschinen |
Also Published As
Publication number | Publication date |
---|---|
DE59502083D1 (de) | 1998-06-10 |
EP0675281A1 (de) | 1995-10-04 |
US5655716A (en) | 1997-08-12 |
JPH0835461A (ja) | 1996-02-06 |
JP3707824B2 (ja) | 2005-10-19 |
CH689282A5 (de) | 1999-01-29 |
ATE165900T1 (de) | 1998-05-15 |
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