EP1492942A1 - ELEKTROMAGNETISCHES HYDRAULIKVENTIL, INSBESONDERE PROPORTIONALVENTIL ZUR STEUERUNG EINER VORRICHTUNG ZUR DREHWINKELVERSTELLUNG EINER NOCKENWELLE GEGEN BER EINER KURBELWELLE EINER BRENN KRAFTMASCHINE, SOWIE VERFAHREN ZU DESSEN HERSTELLUNG - Google Patents
ELEKTROMAGNETISCHES HYDRAULIKVENTIL, INSBESONDERE PROPORTIONALVENTIL ZUR STEUERUNG EINER VORRICHTUNG ZUR DREHWINKELVERSTELLUNG EINER NOCKENWELLE GEGEN BER EINER KURBELWELLE EINER BRENN KRAFTMASCHINE, SOWIE VERFAHREN ZU DESSEN HERSTELLUNGInfo
- Publication number
- EP1492942A1 EP1492942A1 EP03708163A EP03708163A EP1492942A1 EP 1492942 A1 EP1492942 A1 EP 1492942A1 EP 03708163 A EP03708163 A EP 03708163A EP 03708163 A EP03708163 A EP 03708163A EP 1492942 A1 EP1492942 A1 EP 1492942A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve housing
- valve
- radial openings
- control piston
- axial bore
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
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- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86622—Motor-operated
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- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]
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- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86718—Dividing into parallel flow paths with recombining
- Y10T137/86759—Reciprocating
- Y10T137/86767—Spool
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- 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
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- 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
- Y10T29/49405—Valve or choke making
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- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
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- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
- Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
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- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
- Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
- Y10T29/49417—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including molding or casting
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- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
- Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
- Y10T29/49419—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including machining or drilling
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- 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
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
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- 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
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49989—Followed by cutting or removing material
Definitions
- Electromagnetic hydraulic valve especially a proportional valve
- the invention relates to an electromagnetic hydraulic valve according to the features of the preamble of claim 1 and a method for its production, and it can be implemented particularly advantageously on proportional valves for controlling a device for adjusting the angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine.
- a generic proportional valve for controlling a device for adjusting the angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine which essentially consists of a hollow cylindrical electromagnet with an axially movable magnet armature and a cylindrical valve housing an axial bore and a control piston received therein.
- the control piston which is designed as a hollow piston, is in operative connection with the magnet armature of the electromagnet via a push rod in such a way that the magnetic force that moves the magnet armature when the electromagnet is energized is transmitted to the control piston and axially in the continuous axial bore of the valve housing against the force of a compression spring shifts.
- valve housing instructs Nem circumference three axially spaced annular grooves, in each of which a plurality of evenly distributed radial bores are incorporated, which open into the axial bore of the valve housing.
- the proportional valve is in fluid communication with a pressure connection, a tank connection and two consumer connections via these radial bores and the one-sided open bore in the valve housing, via which the inflow and outflow of the hydraulic fluid to and from the pressure chambers of the device for adjusting the angle of rotation of a camshaft is regulated.
- the respective flow rate is regulated by two ring-shaped control sections at the ends of the control piston, which, depending on the energization of the electromagnet and the axial position of the control piston depending on it, release part of the opening cross-sections of the radial bores of the consumer connections and thus optionally the pressure connection and the tank connection with one of the consumer connections connect.
- the control sections of the control piston and the intermediate webs of the valve housing that arise between the individual radial bores of each consumer connection form the guide of the control piston within the ⁇ xial bore of the valve housing, with which jamming of the control piston during its displacement is avoided.
- Proportional valves designed in this way undoubtedly have the advantage that the control sections of the control piston are at the same time its guide surfaces in the axial bore of the valve housing and that both the control piston and the valve housing thus have a relatively short overall length.
- this is offset by the disadvantage that at least the radial bores in the valve housing belonging to the consumer connections only allow a low flow of hydraulic medium through the valve due to their overall relatively small opening cross-sectional area, and that due to the semicircular opening cross-sectional shapes of these radial bores allows the flow of the hydraulic medium through the valve in the individual positions of the control piston is not linear to the respective position of the magnet armature of the electromagnet.
- wave has the consequence that the valve has a large internal hydraulic resistance, which is expressed by a high pressure drop at the consumer connections and, at least in the case of devices with a relatively large absorption volume, has the consequence that their maximum adjustment speed is below a permissible one Minimum value.
- the non-linear flow through the valve means that the adjustment pressure required for a quick adjustment process is only relatively late in the respective pressure chambers of the device, since the straight control sections of the control piston initially only have a minimal radial bore on the consumer connections at the edge of the bore Open the opening cross-section before the opening cross-section becomes ever larger with the further axial movement of the control piston and the necessary adjustment pressure is only reached in an end position.
- the radial bores in the valve housing have also proven to be disadvantageous in terms of production technology, since the exact drilling of the radial bores is very time-consuming and cost-intensive and also requires extensive reworking to remove chips and burrs.
- the proportional valve similar to the solution disclosed in DE 100 51 614 A1, has a control piston in the valve housing, which has two additional ends on the ring surfaces of the control piston arranged guide pin is guided in the axial bore.
- These additional guide pins on the control piston make it possible that the control sections of the control piston no longer have to perform any guiding function and can therefore be freely arranged in the axial bore of the valve housing in relation to two circumferential annular grooves.
- These ring grooves are laterally delimited by two ring webs and are each connected to the consumer connections by a large radial opening in the valve housing on one side.
- the ring webs of these ring grooves are in operative connection with the control sections of the control piston in such a way that, depending on the energization of the electromagnet and the associated axial position of the control piston, a completely circular opening cross section to the Ring grooves released and thus the pressure connection and the tank connection is optionally connected to one of the consumer connections.
- the invention is therefore based on the object of designing an electromagnetic hydraulic valve, in particular a proportional valve for controlling a device for adjusting the angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine, which combines the advantages of known proportional valves in a simple and cost-effective manner and in a short manner
- Overall length of the valve housing and the control piston has large opening cross-sectional areas at the radial openings and allows a high and linear flow of the hydraulic medium through the valve designed for the position of the magnet armature of the electromagnet.
- the radial openings designed as square windows preferably have a rectangular opening cross section, the longer axial edges of which extend in the circumferential direction of the valve housing and are arranged parallel to the control sections of the control piston.
- the distance between the axial edges of the radial openings corresponds to the width of the control sections, so that the rectangular radial openings of the consumer connections can also be completely closed in a central position of the control piston.
- the radial openings designed as square windows it is of course also possible to design the radial openings designed as square windows and to arrange more than three of these radial openings in each annular groove of the valve housing if this proves to be necessary or sufficient in terms of the flow.
- a different number of radial openings at the consumer connections compared to the radial openings to the pressure or tank connection of the valve and / or also a different cross-sectional shape between the radial openings of the consumer connections and the radial openings of the pressure or tank connection of the valve are also conceivable.
- all radial openings are rectangular, it is possible to arrange fewer or more than three radial openings in each annular groove or to vary the number and cross-sectional shape between the consumer connections and the pressure or tank connection, with the same overall opening cross-sections being sought at least at the consumer connections and adequate guidance must be available for the control piston.
- valve housing In the preferred use of a light or non-ferrous metal for the valve housing, it is finally proposed as a method for producing the hydraulic valve designed according to the invention that the radial openings in the valve housing are machined with a number of up to three windows per annular groove by so-called polygonal hammering on a lathe.
- a cutter head rotating axially parallel to the valve housing in the same direction of rotation is used with three knives arranged axially next to one another at a distance from the annular grooves which each have a square cutting edge geometry and with which all radial openings in all three ring grooves of the valve housing are produced in one operation.
- the speed ratio between the cutterhead shaft and the lathe spindle is Number of radial openings per ring groove between 3: 1 and 1: 1, i.e.
- valve housing of the hydraulic valve designed according to the invention there are also milling of the rectangular radial openings with a disc milling cutter or the production of the valve housing with all inner and outer contours by die-cast aluminum, although the newly used polygonal hammering is suitable which has proven radial openings to be the least expensive.
- the electromagnetic hydraulic valve designed according to the invention in particular a proportional valve for controlling a device for adjusting the angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine, has the advantage over the hydraulic valves known from the prior art that the valve housing thereof is formed by the short control piston designed without additional guides has a short overall length, with the rectangular radial openings in the annular grooves of the valve housing nevertheless ensuring reliable guidance of the control piston on the intermediate webs remaining between them and relatively large opening cross sections to the consumer lines.
- the rectangular cross-sectional shape of the radial openings according to the invention thus enables the hydraulic medium to flow through the valve, which approximately reaches the values of proportional valves with an additional piston guide.
- the rectangular radial openings are also the reason why the flow of the hydraulic medium through the valve as an output variable is now linear in every position of the control piston or proportional to the respective input variable such as the energization of the electromagnet determining the position of the magnet armature.
- the formed proportional valve for controlling a device for adjusting the angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine this has the advantage that the valve has only a small internal hydraulic resistance and the device thereby has a rapid pressure build-up in its pressure chambers and thus high adjustment speeds.
- the method according to the invention for producing the electromagnetic hydraulic valve also makes it possible to make the manufacture of the valve housing with the rectangular radial openings extremely inexpensive and effective without complex reworking and thus to reduce the overall production costs of the hydraulic valve.
- Figure 1 is a partially longitudinally sectioned overall view of the hydraulic valve designed according to the invention in the longitudinally divided energized and de-energized state;
- FIG. 2 shows a longitudinal section through the valve housing and the control piston of the hydraulic valve designed according to the invention
- Figure 3 is a partial development of the valve housing with the control piston of the hydraulic valve designed according to the invention.
- an electromagnetic hydraulic valve 1 which essentially consists of a hollow cylindrical electromagnet 2 with a magnet armature 3 which is axially movable therein and a cylindrical valve housing 4 with an axial bore 5 and a Menen control piston 6 there.
- the control piston 6, which is designed as a hollow piston, is in power transmission connection with the magnet arm 3 of the electromagnet 2 via a plunger rod (not specified) and is in the continuous axial bore 5 of the valve housing 4 against the force of one, as is illustrated by the representation divided along the longitudinal center line in FIG Compression spring 7 axially displaceable.
- valve housing 4 has three axially spaced-apart annular grooves 8, 9, 10, into which a plurality of radial openings 11, 12, 13, which are evenly distributed around the circumference and open into the axial bore 5 of the valve housing 4, are incorporated are.
- the hydraulic valve 1 Via these radial openings 11, 12, 13 and via the axial bore 5 in the valve housing 4, which is open on one side, the hydraulic valve 1 is in fluid connection with a pressure port P, a tank port T and two consumer ports A, B, via which the inflow and outflow of the hydraulic medium to and from the pressure chambers of a device, not shown, for regulating the angle of rotation of a camshaft is regulated.
- control piston 6 for controlling the flow of the hydraulic medium through the hydraulic valve 1 has at its ends two annular control sections 14, 15, which selectively the pressure port P and the tank port T through axial displacement of the control piston 6 Connect to one of the consumer ports A, B and, together with the intermediate webs 16, 17 remaining between the individual radial openings 11, 13 of each consumer port A, B, at the same time form the guide of the control piston 6 within the axial bore 5 of the valve housing 4.
- the radial openings 11, 12, 13 opening into the axial bore 5 of the valve housing 4 are designed according to the invention as windows which are largely quadrangular in cross-section, through which a window opens round radial openings significantly increased flow of the hydraulic fluid through the hydraulic valve 1 is possible.
- Control sections 14, 15 of the control piston 6 at the radial openings 11, 13 of the consumer ports A, B and cross-sectional area 18, 19 released and hatched in the drawing are designed in the form of a segment of a ring and borrowed by the axial displacement of the control piston 6 such that the flow through the Radial openings 11, 12, 13 in all positions of the control piston 6 is linear to the respective position of the armature 3 of the electromagnet 2.
- the valve housing 4 shown in the drawings has three radial openings 11, 12, 13 with a rectangular opening cross section extending in the circumferential direction of the valve housing 4 in each annular groove 8, 9, 10 on a common longitudinal axis , the axial edges of which are arranged parallel to the control sections 14, 15 of the control piston 6, as indicated in FIG. 2, have a distance a from one another which corresponds to the width b of the control sections 14, 15 of the control piston 6.
- the three intermediate webs 16, 17, each remaining between the radial openings 11 and 13 and likewise of rectangular design according to FIG. 3, then form the guide for the control sections 14, 15 of the control piston 6 in the axial bore 5 of the valve housing 4, through which the control piston 6 is axially displaceable in the valve housing 4 without jamming.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10215939 | 2002-04-11 | ||
DE2002115939 DE10215939C1 (de) | 2002-04-11 | 2002-04-11 | Elektromagnetisches Hydtaulikventil, insbesondere Proportionalventil zur Steuerung einer Vorrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine, sowie Verfahren zu dessen Herstellung |
PCT/EP2003/002119 WO2003085237A1 (de) | 2002-04-11 | 2003-03-01 | Elektromagnetisches hydraulikventil, insbesondere proportionalventil zur steuerung einer vorrichtung zur drehwinkelverstellung einer nockenwelle gegenüber einer kurbelwelle einer brennkraftmaschine, sowie verfahren zu dessen herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1492942A1 true EP1492942A1 (de) | 2005-01-05 |
Family
ID=27618838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03708163A Withdrawn EP1492942A1 (de) | 2002-04-11 | 2003-03-01 | ELEKTROMAGNETISCHES HYDRAULIKVENTIL, INSBESONDERE PROPORTIONALVENTIL ZUR STEUERUNG EINER VORRICHTUNG ZUR DREHWINKELVERSTELLUNG EINER NOCKENWELLE GEGEN BER EINER KURBELWELLE EINER BRENN KRAFTMASCHINE, SOWIE VERFAHREN ZU DESSEN HERSTELLUNG |
Country Status (7)
Country | Link |
---|---|
US (2) | US6928967B2 (de) |
EP (1) | EP1492942A1 (de) |
KR (1) | KR100966769B1 (de) |
CN (1) | CN100346082C (de) |
AU (1) | AU2003212292A1 (de) |
DE (1) | DE10215939C1 (de) |
WO (1) | WO2003085237A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004038252A1 (de) | 2004-05-14 | 2005-12-15 | Ina-Schaeffler Kg | Steuerventil für eine Vorrichtung zur Veränderung der Steuerzeiten einer Brennkraftmaschine |
DE102005037480A1 (de) * | 2005-08-09 | 2007-02-15 | Schaeffler Kg | Steuerventil und Verfahren zur Herstellung desselben |
DE102005041393A1 (de) * | 2005-09-01 | 2007-03-08 | Schaeffler Kg | Steuerventil für eine Vorrichtung zur Veränderung der Steuerzeiten einer Brennkraftmaschine |
DE102005047641A1 (de) * | 2005-10-05 | 2007-04-12 | Schaeffler Kg | Steuerventil für einen Nockenwellenversteller |
US8387644B2 (en) * | 2007-02-09 | 2013-03-05 | Saturn Electronics & Engineering, Inc. | Solenoid operated fluid control valve |
US8006719B2 (en) * | 2008-04-15 | 2011-08-30 | Husco Automotive Holdings Llc | Electrohydraulic valve having a solenoid actuator plunger with an armature and a bearing |
US20100084019A1 (en) * | 2008-10-08 | 2010-04-08 | Schaeffler Kg | Central spool valve |
DE102009024026B4 (de) * | 2009-06-05 | 2022-12-08 | Schaeffler Technologies AG & Co. KG | Steuerventil zum Steuern von Druckmittelströmen mit integriertem Rückschlagventil |
DE102010009400A1 (de) * | 2010-02-26 | 2011-09-01 | Schaeffler Technologies Gmbh & Co. Kg | Elektromagnetisches Hydraulikventil |
JP5360173B2 (ja) * | 2011-09-15 | 2013-12-04 | 株式会社デンソー | バルブタイミング調整装置 |
DE102012211526A1 (de) | 2012-07-03 | 2014-01-09 | Schaeffler Technologies AG & Co. KG | Hydraulischer Nockenwellenversteller mit interner Dämpfung |
DE102014101236B4 (de) * | 2014-01-31 | 2017-06-08 | Hilite Germany Gmbh | Hydraulikventil für einen Schwenkmotorversteller einer Nockenwelle |
DE102014109097A1 (de) * | 2014-06-27 | 2015-12-31 | Hilite Germany Gmbh | Hydraulikventil |
ITUA20161689A1 (it) * | 2016-03-15 | 2017-09-15 | Madas Srl | Freno idraulico |
DE102017110681A1 (de) | 2017-05-17 | 2018-11-22 | Schaeffler Technologies AG & Co. KG | Verfahren zur Herstellung eines Außenrings und einer Distanzhülse für einen Turbolader |
DE102017124187A1 (de) | 2017-10-17 | 2019-04-18 | Kendrion (Villingen) Gmbh | Verfahren zum Herstellen von einer oder mehreren konkaven Ausnehmungen auf einem insbesondere im Wesentlichen zylindrischen Grundkörper insbesondere auf einem Magnetanker, Stößel oder einer Rückschlussplatte, Magnetanker, Stößel oder Rückschlussplatten, welcher eine oder mehrere nach diesem Verfahren hergestellte Ausnehmungen aufweist, sowie elektro-magnetischer Aktuator mit einem derartigen Magnetanker und/ oder einer derartigen Rückschlussplatte |
DE102020115302A1 (de) * | 2020-06-09 | 2021-12-09 | Index-Werke Gmbh & Co. Kg Hahn & Tessky | Werkzeugmaschine und Verfahren zum Betreiben einer Werkzeugmaschine |
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US2969773A (en) * | 1956-05-03 | 1961-01-31 | Kelsey Hayes Co | Hydraulic valve-controlled servo device |
DE3012453A1 (de) * | 1980-03-31 | 1981-10-08 | Lothar 7012 Fellbach Groß | Durchgangsventil |
EP0075507A1 (de) * | 1981-09-11 | 1983-03-30 | Thomson-Csf | Elektrohydraulische Servoventilanordnung |
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GB9003673D0 (en) * | 1990-02-17 | 1990-04-11 | Norgren Martonair Ltd | Valve bush |
IT1250845B (it) * | 1991-10-11 | 1995-04-21 | Weber Srl | Valvola dosatrice e polverizzatrice di carburante ad azionamento elettromagnetico per un dispositivo di alimentazione di un motore endotermico |
DE4307990A1 (de) * | 1993-03-13 | 1994-09-15 | Bosch Gmbh Robert | Hydraulisches Steuerventil |
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JP3344916B2 (ja) * | 1997-02-10 | 2002-11-18 | 株式会社ユニシアジェックス | アクチュエータ制御装置 |
US6199776B1 (en) * | 1997-11-22 | 2001-03-13 | Robert Bosch Gmbh | Fuel injection valve and method for the production of a valve needle for a fuel injection valve |
DE19853670C5 (de) * | 1998-11-20 | 2019-01-10 | Hilite Germany Gmbh | Einrichtung zur Nockenwellenverstellung |
DE19907678A1 (de) * | 1999-02-23 | 2000-08-24 | Hydraulik Ring Gmbh | Verfahren zur Herstellung von Steuerkanten an einem Ventil, vorzugsweise an einem Ventil für einen Kraftstoff-Injektor einer Verbrennungsmaschine sowie Kraftstoff-Injektor mit einem solchen Ventil |
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JP4474626B2 (ja) * | 1999-10-19 | 2010-06-09 | 株式会社デンソー | 電磁弁 |
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JP3719978B2 (ja) * | 2001-12-27 | 2005-11-24 | 株式会社日立製作所 | 燃料噴射弁 |
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JP4120590B2 (ja) * | 2003-03-05 | 2008-07-16 | 株式会社デンソー | インジェクタの部品組付方法 |
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-
2002
- 2002-04-11 DE DE2002115939 patent/DE10215939C1/de not_active Expired - Lifetime
-
2003
- 2003-03-01 CN CNB038081571A patent/CN100346082C/zh not_active Expired - Lifetime
- 2003-03-01 EP EP03708163A patent/EP1492942A1/de not_active Withdrawn
- 2003-03-01 KR KR1020047015059A patent/KR100966769B1/ko active IP Right Grant
- 2003-03-01 AU AU2003212292A patent/AU2003212292A1/en not_active Abandoned
- 2003-03-01 WO PCT/EP2003/002119 patent/WO2003085237A1/de not_active Application Discontinuation
-
2004
- 2004-09-30 US US10/955,221 patent/US6928967B2/en not_active Expired - Lifetime
-
2005
- 2005-05-19 US US11/132,884 patent/US7503115B2/en active Active
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US2969773A (en) * | 1956-05-03 | 1961-01-31 | Kelsey Hayes Co | Hydraulic valve-controlled servo device |
DE3012453A1 (de) * | 1980-03-31 | 1981-10-08 | Lothar 7012 Fellbach Groß | Durchgangsventil |
EP0075507A1 (de) * | 1981-09-11 | 1983-03-30 | Thomson-Csf | Elektrohydraulische Servoventilanordnung |
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Title |
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See also references of WO03085237A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1646794A (zh) | 2005-07-27 |
AU2003212292A1 (en) | 2003-10-20 |
US6928967B2 (en) | 2005-08-16 |
CN100346082C (zh) | 2007-10-31 |
US20050056327A1 (en) | 2005-03-17 |
DE10215939C1 (de) | 2003-08-21 |
US7503115B2 (en) | 2009-03-17 |
KR100966769B1 (ko) | 2010-06-29 |
KR20040101349A (ko) | 2004-12-02 |
WO2003085237A1 (de) | 2003-10-16 |
US20050207900A1 (en) | 2005-09-22 |
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