EP1431576A1 - Kolbenpumpe - Google Patents
Kolbenpumpe Download PDFInfo
- Publication number
- EP1431576A1 EP1431576A1 EP03014382A EP03014382A EP1431576A1 EP 1431576 A1 EP1431576 A1 EP 1431576A1 EP 03014382 A EP03014382 A EP 03014382A EP 03014382 A EP03014382 A EP 03014382A EP 1431576 A1 EP1431576 A1 EP 1431576A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- piston pump
- housing
- pump
- quantity control
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0421—Cylinders
Definitions
- the invention relates to a piston pump, in particular a High-pressure fuel pump for internal combustion engines with Direct injection, with a pump housing and with a Quantity control valve with a valve housing.
- Such a piston pump is known from DE 199 38 504 A1 known.
- This is a single-cylinder high-pressure pump, which in a fuel system Internal combustion engine is used and their pistons of a camshaft of an internal combustion engine in a forward and Movement can be offset.
- the Piston pump Into the pump housing the Piston pump is a housing of a quantity control valve screwed in and sealed with O-rings. With the Quantity control valve, the flow rate of the piston pump be set.
- DE 198 34 121 A1 discloses a Fuel supply system of an internal combustion engine, at which is also a fuel pump is used, whose Quantity control valve to the housing of the fuel pump is flanged.
- Object of the present invention is a piston pump of the aforementioned type so educate that with a higher efficiency works.
- the piston pump according to the invention operates with a higher Efficiency, since it has less damage volumes are. This is made possible by the rigid and insoluble Connection of the valve housing of the quantity control valve with the pump housing of the piston pump. This can namely the O-ring seals are completely eliminated, or they can be at least simpler, smaller and more fluid tight be executed.
- the quantity control valve and the Pump housings thus form an inseparable unit, which also facilitates the production of the piston pump.
- the Advantages of the invention are particularly concise if the Pump housing or at least that part with which the Quantity control valve is connected, made of steel be, as this allows a particularly good seal.
- Piston pump is suggested that the valve body with welded to the pump housing.
- Such Connection between the pump housing and the valve housing is particularly fluid-tight and stabilizes the one hand Valve housing and on the other hand, the pump housing. Furthermore can such a welded joint in one place be placed with regard to the reduction of Schadvolumina is particularly favorable.
- the head section as executed overall substantially flat adapter plate is, and if the valve body with the adapter plate connected is.
- the adapter plate and the valve body can thus be manufactured as a unit, which the Production simplified. This especially if the Adapter plate is made of steel.
- the Quantity control valve comprises a coil part and that the Valve housing from one side and the coil part of the other side is inserted in the head section. At the Assembly will automatically set the quantity control valve on Pump housing or at the head portion fixed.
- valve housing is pressed into the head section and the Spool part is caulked with the head portion.
- piston pump according to the invention is characterized that it has a fixing portion, and that between the head portion and the attachment portion clamped a line part for the discharge of leakage fluid is.
- This cable part is easy to make and over fixed the tension in a simple way.
- the piston pump having a fixing portion, and that between the Head portion and the attachment portion a Device for damping pressure pulsations clamped is. Since this device is thus a independent component, the device can be used for Damping of pressure pulsations optimally to the requirements be adapted to the specific fuel system.
- a further advantageous embodiment is apparent characterized in that between a pumping room and a High pressure connection and / or a low pressure connection in The head section in each case at least one crescent-shaped Flow space is present. This facilitates the Integration of the quantity control valve, as a costly Angle alignment of the valve body is not required is.
- the housings are protected against climatic and environmental influences well protected when the exposed areas of the Valve housing and at least partially the Pump housing with a plastic material in one piece are overmoulded.
- the unit made in this way can Therefore, they are made of materials that are not Corrosion resistant, but inexpensive and easy to work with are.
- the switching precision of the quantity control valve and thus the Precision in adjusting the flow rate of the Piston pump is improved when the quantity control valve a magnet armature, which from a sleeve a non-magnetic material is guided.
- the quantity control valve is an elongate valve element comprises, which is guided by a guide plate, which is pressed into a portion of the valve housing.
- the insertion of the guide plate is beyond comparatively inexpensive.
- the quantity control valve a Magnetic armature and a counter pole includes, both at least partially chromed.
- this Chrome layer is the easy way for the Function of the quantity control valve required air gap created between the armature and the opposite pole.
- the Smooth running of the armature can be improved.
- valve member When the piston pump is an inlet valve with a Valve member comprises, which of the valve element of Quantity control valve can be applied to form that Inlet valve on the one hand and the quantity control valve on the other hand, in a sense, a functional unit, leading to a further reduction in the size of the Piston pump and a reduction in the damage volumes leads.
- DE 198 34 121 A1 which are hereby expressly incorporated into the present invention is included.
- the distance between the valve element and Valve member determined by at least one adjustment plate which is located upstream of the valve member.
- a quantity control valve can be used be dispensed with a comparatively large stroke, since the gap can be set very accurately and small.
- a magnetic circuit design is possible, the For example, no regulated amplifier needed more. Of the This is because no high initial current is needed will, with as quickly as possible a corresponding Magnetic field with high initial power is built up to one correspondingly large working gap to be bridged.
- a fuel system carries the total in FIG Reference numeral 10.
- An electric fuel pump (“Pre-feed pump”) with the reference numeral 12 promotes Fuel from a reservoir 14.
- the electrical Fuel pump 12 promotes the fuel to a High-pressure fuel pump 16. This is not on here more detailed manner of a camshaft an internal combustion engine 11, to which the Fuel system 10 is heard, powered.
- the high pressure fuel pump 16 compresses the fuel to a very high pressure and encourages him to one Fuel rail 18 ("Rail"). There are several of these Injectors 20 are connected, which direct the fuel inject associated combustion chambers 22 in each of them.
- the Amount of funded by the high-pressure fuel pump 16 Fuel is from a quantity control valve 24th set, which of a control and regulating device 26th is controlled.
- the high pressure fuel pump 16 is a 1-cylinder piston pump whose piston in the figures 2 and 3, the reference numeral 28 carries.
- the piston is in one Cylinder section 30 out. This one is on here again not shown manner with a Head portion 32 fluid-tight manner. Of the Cylinder portion 30 and the head portion 32 are part a pump housing 34.
- the quantity control valve 24 comprises a valve housing 36, which in turn consists of a lower part 38 and a top 40 exists.
- the top 40 is also called a magnetic head designated.
- a magnetic separating ring 42 is present between the lower part 38 and the upper part 40 . He is with the welded to both parts 38 and 40 (reference numeral 44).
- the Lower part 38 of the valve housing 36 is connected to the Head portion 32 of the pump housing 34 welded (Reference numeral 46).
- the valve housing 36 of the Quantity control valve 24 and the upper part in FIG Head portion 32 of the pump housing 34 are provided with a Plastic compound 48 overmolded in a fluid-tight manner.
- the quantity control valve 24 also includes a Magnetic housing 50 and a solenoid 52.
- Im Quantity control valve 24 is an elongate cylindrical Valve element 54 is arranged on the upper in Figure 2 End of a magnet armature 56 is pressed.
- the valve element 54 is performed twice: first, by a in Figure 2 upper needle guide, which by a guide ring 58 is shown, with the lower part 38 of Valve housing 36 is firmly connected. To the other by a lower needle guide in Figure 2, which as a lower angled guide ring 60 is formed, the also with the lower part 38 of the valve housing 36 fixed connected is. Both guide rings 58 and 60 can For example, in the lower part 38 of the valve housing 36th be pressed.
- valve element 54 On the valve element 54 is between the upper Guide ring 58 and the lower guide ring 60 a Sleeve part 62 pressed, which with the two Guide rings 58 and 60 in the sense of attacks cooperates. Between a radially outward extending circumferential annular ridge 64 of the sleeve part 62 and the lower guide ring 60 is further a spring 66th clamped by the valve element 54 in Figure 2 after is pressed up when the solenoid 52 is de-energized.
- a Inlet valve 68 housed in the head portion 32 of the pump housing 34 .
- the valve element 54 In the in Figure 2 shown rest position of the quantity control valve 24 is the valve element 54 only by a small gap s of the Valve member 70 abutting the valve seat 74 is removed.
- One Low pressure inlet, which continues to the electric Fuel pump 12 leads, carries in Figure 2 the Reference numeral 76.
- An outlet valve carries the reference numeral 78 and leads to a high pressure port 79. Fluidic between the inlet valve 68, the outlet valve 78 and the Piston 28, a delivery chamber 80 is present.
- FIGs. 3 and 4 is an area of the high pressure fuel pump 16 visible, essentially below of the range shown in Figure 2.
- FIG 3 shows a mounting portion 82, with which the High-pressure fuel pump 16, for example, not at one shown engine block of the internal combustion engine 11, to the the fuel system 10 may be attached.
- the attachment section 82 on the one hand and in the head section 32 on the other hand are coaxial blind hole bushings 84th or 86 available.
- the blind hole bushings 84th or 86 is respectively the end of a pipe section 88th plugged in and over O-rings (without reference number) sealed.
- the lower blind hole bushing 86 communicates via a leakage channel 90 with a pressure relief groove 92 in Cylinder section 30.
- the blind hole bushing 86 communicates also in a manner not shown with the Inlet 76.
- In the pipe section 88 is a pressure damper 94th available.
- the structure of the high-pressure fuel pump 16 with the Quantity control valve 24 is carried out as follows:
- the armature 56 is on the valve element 54th pressed.
- the positioning of the magnet armature 56 relative to the valve element 54 takes place comparatively coarse, for example with an accuracy of only ⁇ 0.1 mm.
- the upper Guide ring 58 in the lower part 38 of the valve housing 36th pressed.
- the valve element 54 is introduced and the sleeve part 62 is pressed onto the valve element 54 (When the lower guide ring 60 is pressed to stop is, the magnet armature 56 must be previously fine accordingly be positioned).
- the spring 66 is mounted and the lower Guide ring 60 in the lower part 38 of the valve housing 36th pressed so far until a desired stroke with the Valve element 54 is just possible.
- the Magnetic separator ring 42 mounted and on the one hand with the Lower part 38 and on the other hand with the upper part 40 of the Valve housing 36 welded. Then the magnet housing becomes 50 pressed onto the lower part 38 of the valve housing 36.
- a favorable measure of such a gap is about 0.02 to 0.05 mm.
- Both components will be then welded together and with the plastic mass 48 molded.
- the biting edge 116 is embossed and under a held corresponding bias.
- Fig. 5 is an area of another one Embodiment of a high pressure fuel pump 16th shown.
- Such elements and areas which equivalent functions to elements and areas of in Figures 2 to 4 illustrated embodiment have the same reference numerals and are not explained again in detail.
- the thickness of the adjusting ring 96 is determined by measuring the Distance from the support surface of the head portion 32 to to the valve member 70 and the bearing surface of the Lower part 38 to the lower end of the valve element 54th determined.
- Quantity control valve 24 of the armature 56 with a Chrome layer 98 coated.
- the armature 56 is in a guide sleeve 102 from guided a non-magnetic material.
- Adjustment ring 96 can also be performed as follows become:
- valve element 54 is energized coil 52 down to the stop shown in Figure 5, i. until it abuts the valve member 70 during this Operation usefully via a device with a additional closing force is applied.
- the valve element 54 is still located at the top Stop plate 100 at.
- the valve housing 36 moves up by the dimension s and then with the Pump housing 34 welded. Because of the advance, namely by a corresponding positioning of the stop plate 100, set magnet armature stroke ensures that the valve element 54 when energized coil 52 the right one Takes position.
- valve housing 36 moves back by the amount s up and then welded to the pump housing 34.
- FIG. 6 shows yet another embodiment a high pressure fuel pump 16 shown. there again carry such elements and areas, which equivalent functions to elements and areas of the above have described embodiments, the same Reference numerals, and they are not again in detail explained.
- the head portion 32 of the pump housing 34 is in the in Figure 6 illustrated embodiment as in Substantially flat adapter plate formed.
- a stepped bore 104 is present, in which the lower part 38 of the valve housing 36 in Figure 6 from below is pressed.
- the upper part 40 of the valve housing 36, in the solenoid coil 52 is present then becomes in FIG. 6 placed on top of the adapter plate 32 and with this caulked (see Figure 7, reference numeral 105).
- the Adapter plate 32 are the inlet 76 and the outlet 79 with the outlet valve 78 is present.
- the adjustment of the gap s between the valve element 54th the quantity control valve 24 and the valve member 70 of the Inlet valve 68 takes place in its idle state by a annular disk-shaped adjusting plate 114, the upstream is arranged from the valve member 70 and in which in FIG illustrated embodiment forms the valve seat 74.
- the adjustment plate 114 is in the lower part 38 of Valve housing 36 pressed. Depending on requirements an adjustment plate 114 of a corresponding thickness used.
- the cylinder portion 30 is opposite to the Adapter plate 32 by an annular biting edge 116, the is formed on the cylinder portion, sealed. Which This annular space (without reference numerals) is with the inlet 76 and the pressure relief groove 92 connected. About not shown screws can the entire bandage axially against the cylinder head of the Internal combustion engine to be braced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Figur 1:
- eine schematische Darstellung eines Kraftstoffsystems mit einer Hochdruck-Kraftstoffpumpe;
- Figur 2:
- einen teilweisen Schnitt durch einen Bereich eines ersten Ausführungsbeispiels der Hochdruck-Kraftstoffpumpe von Figur 1;
- Figur 3:
- einen teilweisen Schnitt durch einen anderen Bereich der Hochdruck-Kraftstoffpumpe von Figur 2;
- Figur 4:
- eine Draufsicht auf einen Bereich der Hochdruck-Kraftstoffpumpe von Figur 2;
- Figur 5:
- einen teilweisen Schnitt durch einen Bereich eines zweiten Ausführungsbeispiels der Hochdruck-Kraftstoffpumpe von Figur 1;
- Figur 6:
- einen teilweisen Schnitt durch ein drittes Ausführungsbeispiel der Hochdruck-Kraftstoffpumpe von Figur 1; und
- Figur 7:
- eine Seitenansicht auf einen Bereich der Hochdruck-Kraftstoffpumpe von Figur 6.
Claims (18)
- Kolbenpumpe (16), insbesondere Hochdruck-Kraftstoffpumpe für Brennkraftmaschinen mit Direkteinspritzung, mit einem Pumpengehäuse (34) und mit einem Mengensteuerventil (24) mit einem Ventilgehäuse (36), dadurch gekennzeichnet, dass das Ventilgehäuse (36) mit einem Kopfabschnitt (32) des Pumpengehäuses (34) unlösbar starr verbunden ist (46).
- Kolbenpumpe (16) nach Anspruch 1, dadurch gekennzeichnet, dass das Ventilgehäuse (36) mit dem Pumpengehäuse (34) verschweißt ist (46).
- Kolbenpumpe (16) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Kopfabschnitt (32) als insgesamt im Wesentlichen ebene Adapterplatte ausgeführt ist, und dass das Ventilgehäuse (36) mit der Adapterplatte (32) verbunden ist.
- Kolbenpumpe (16) nach Anspruch 3, dadurch gekennzeichnet, dass das Mengensteuerventil (24) ein Spulenteil (52) umfasst, und dass das Ventilgehäuse (36) von der einen Seite und das Spulenteil (52) von der anderen Seite in den Kopfabschnitt (32) eingeführt ist.
- Kolbenpumpe (16) nach Anspruch 4, dadurch gekennzeichnet, dass das Ventilgehäuse (36) in den Kopfabschnitt (32) einqepresst und das Spulenteil (52) mit dem Kopfabschnitt (32) verstemmt ist.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Befestigungsabschnitt (82) aufweist, und dass zwischen dem Kopfabschnitt (32) und dem Befestigungsabschnitt (82) ein Leitungsteil (88) zur Ableitung von Leckagefluid verspannt ist.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Befestigungsabschnitt (82) aufweist, und dass zwischen dem Kopfabschnitt (32) und dem Befestigungsabschnitt (82) eine Einrichtung (94) zur Dämpfung von Druckpulsationen verspannt ist.
- Kolbenpumpe (16) nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass das Leitungsteil (88) und/oder die Einrichtung (94) zur Dämpfung von Druckpulsationen steckbar sind.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen einem Förderraum (80) und einem Hochdruckanschluss (79) und/oder einem Niederdruckanschluss (76) in dem Kopfabschnitt (32) jeweils mindestens ein sichelförmiger Strömungsraum (110, 112) vorhanden ist.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die freiliegenden Bereiche des Ventilgehäuses (36) und mindestens zum Teil auch des Pumpengehäuses (34) mit einem Kunststoffmaterial (48) einstückig umspritzt sind.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mengensteuerventil (24) ein längliches Ventilelement (54) umfasst, an dem eine Anschlaghülse (62) befestigt ist, welche mit mindestens einem gehäusefesten Anschlag (58, 60) zusammenarbeitet, der gleichzeitig zur Führung des Ventilelements (54) dient.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mengensteuerventil (24) einen Magnetanker (56) umfasst, welcher von einer Hülse (102) aus einem nichtmagnetischen Material geführt wird.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mengensteuerventil (24) ein längliches Ventilelement (54) umfasst, welches von einer Führungsscheibe (58, 60) geführt wird, die in einen Abschnitt des Ventilgehäuses (36) eingepresst ist.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mengensteuerventil (24) einen Magnetanker (56) und einen Gegenpol umfasst, welche beide wenigstens bereichsweise verchromt sind.
- Kolbenpumpe (16) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein Einlassventil (68) mit einem Ventilglied (70) umfasst, welches von dem Ventilelement (54) des Mengensteuerventils (24) beaufschlagt werden kann.
- Kolbenpumpe (16) nach Anspruch 15, dadurch gekennzeichnet, dass bei geschlossenem Ventilglied (70) der Abstand zwischen Ventilelement (54) und Ventilglied (70) durch mindestens eine Einstellplatte (114) bestimmt wird, welche stromaufwärts vom Ventilglied (70) angeordnet ist.
- Kolbenpumpe (16) nach Anspruch 15, dass bei geschlossenem Ventilglied (70) der Abstand zwischen Ventilelement (54) und Ventilglied (70) durch mindestens einen Einstellring (96) bestimmt wird, welcher zwischen dem Ventilgehäuse (36) und dem Pumpengehäuse (34) angeordnet ist.
- Kolbenpumpe nach Anspruch 15, dadurch gekennzeichnet, dass bei geschlossenem Ventilglied (70) der Abstand zwischen Ventilelement (54) und Ventilglied (70) durch direkte Fixierung der gemessenen axialen Position des Mengensteuerventils (24) im Pumpengehäuse (34) bestimmt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260174 | 2002-12-20 | ||
DE2002160174 DE10260174A1 (de) | 2002-12-20 | 2002-12-20 | Kolbenpumpe, insbesondere Hochdruck-Kraftstoffpumpe für Brennkraftmaschinen mit Direkteinspritzung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1431576A1 true EP1431576A1 (de) | 2004-06-23 |
EP1431576B1 EP1431576B1 (de) | 2006-08-16 |
Family
ID=32336529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030014382 Expired - Lifetime EP1431576B1 (de) | 2002-12-20 | 2003-06-26 | Kolbenpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1431576B1 (de) |
DE (2) | DE10260174A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016012143A1 (de) * | 2014-07-22 | 2016-01-28 | Robert Bosch Gmbh | Elektromagnetische stelleinheit für ein saugventil sowie saugventil |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6135735A (en) * | 1997-11-20 | 2000-10-24 | Robert Bosch Gmbh | Piston pump |
US6253734B1 (en) * | 1998-07-29 | 2001-07-03 | Robert Bosch Gmbh | Fuel delivery system of an internal combustion engine |
US6341950B1 (en) * | 1997-03-21 | 2002-01-29 | Robert Bosch Gmbh | Piston pump |
DE10136705A1 (de) * | 2000-07-28 | 2002-03-07 | Nippon Soken | Elektromagnetventil |
US6422212B1 (en) * | 1998-04-24 | 2002-07-23 | Robert Bosch Gmbh | On-off valve in a fuel injection system for internal combustion engines |
-
2002
- 2002-12-20 DE DE2002160174 patent/DE10260174A1/de not_active Withdrawn
-
2003
- 2003-06-26 DE DE50304643T patent/DE50304643D1/de not_active Expired - Lifetime
- 2003-06-26 EP EP20030014382 patent/EP1431576B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6341950B1 (en) * | 1997-03-21 | 2002-01-29 | Robert Bosch Gmbh | Piston pump |
US6135735A (en) * | 1997-11-20 | 2000-10-24 | Robert Bosch Gmbh | Piston pump |
US6422212B1 (en) * | 1998-04-24 | 2002-07-23 | Robert Bosch Gmbh | On-off valve in a fuel injection system for internal combustion engines |
US6253734B1 (en) * | 1998-07-29 | 2001-07-03 | Robert Bosch Gmbh | Fuel delivery system of an internal combustion engine |
DE10136705A1 (de) * | 2000-07-28 | 2002-03-07 | Nippon Soken | Elektromagnetventil |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016012143A1 (de) * | 2014-07-22 | 2016-01-28 | Robert Bosch Gmbh | Elektromagnetische stelleinheit für ein saugventil sowie saugventil |
Also Published As
Publication number | Publication date |
---|---|
DE50304643D1 (de) | 2006-09-28 |
DE10260174A1 (de) | 2004-07-08 |
EP1431576B1 (de) | 2006-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69624153T2 (de) | Verfahren zur Steuerung der anfänglichen Hublänge einer Kraftstoffdruckpumpe | |
DE3786416T3 (de) | Kraftstoffeinspritzsystem. | |
DE68916267T2 (de) | Druckausgleichsventil. | |
DE4328621A1 (de) | Elektromagnetisch betreibbare Pumpe, insbesondere Dosierpumpe | |
DE3541938C2 (de) | Magnet-Überströmventil | |
EP0268584A1 (de) | Verfahren zum anbau einer einspritzpumpe an eine brennkraftmaschine. | |
EP1477666B1 (de) | Förderpumpe, inbesondere Hochdruck-Kraftstoffpumpe für eine Brennkraftmaschine | |
DE102008043217A1 (de) | Kraftstoff-Hochdruckpumpe für eine Brennkraftmaschine | |
EP1101931A2 (de) | Hochdruckeinspritzsystem mit Common Rail | |
DE69923108T2 (de) | Brennstoffsystem und Pumpe zur Anwendung in einem solchen System | |
EP0935711A1 (de) | Ventilaufsatz zur verkleinerung des totraums bei radialkolbenpumpen für fahrzeugbremsanlagen | |
DE3027627A1 (de) | Kraftstoffeinspritzpumpe fuer eine brennkraftmaschine | |
DE3446325C2 (de) | Druckregelvorrichtung | |
DE9312752U1 (de) | Elektromagnetisch betreibbare Pumpe, insbesondere Dosierpumpe | |
DE102011007781A1 (de) | Steckpumpe | |
EP1799999B1 (de) | Kraftstoffsystem für eine brennkraftmaschine | |
DE3540660A1 (de) | Elektromagnetisch betaetigbares kraftstoffeinspritzventil | |
EP1431576B1 (de) | Kolbenpumpe | |
DE102007053800A1 (de) | Kraftstoffsystem einer Brennkraftmaschine | |
DE2357263C2 (de) | Kraftstoffeinspritzanlage für Brennkraftmaschinen | |
DE10165131A1 (de) | Kraftstoffeinspritzvorrichtung | |
DE3841462C2 (de) | Brennstoffeinspritzvorrichtung | |
DE2246182A1 (de) | Betrachtungsoptik | |
DE102011082588A1 (de) | Überströmventil mit abgeflachter Kennlinie zur Druckbegrenzung in einem Niederdruckbereich einer Kraftstoffeinspritzvorrichtung | |
EP1361358B1 (de) | Magnetventil, insbesondere Mengensteuerventil für Kraftstoffsysteme von Brennkraftmaschinen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
17P | Request for examination filed |
Effective date: 20041223 |
|
AKX | Designation fees paid |
Designated state(s): DE ES FR SE |
|
17Q | First examination report despatched |
Effective date: 20050318 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR SE |
|
REF | Corresponds to: |
Ref document number: 50304643 Country of ref document: DE Date of ref document: 20060928 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061116 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061127 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20070518 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20220621 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20220822 Year of fee payment: 20 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230411 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50304643 Country of ref document: DE |