DE19624296A1 - Electromagnetic actuating device for internal combustion engine lift valves - Google Patents
Electromagnetic actuating device for internal combustion engine lift valvesInfo
- Publication number
- DE19624296A1 DE19624296A1 DE19624296A DE19624296A DE19624296A1 DE 19624296 A1 DE19624296 A1 DE 19624296A1 DE 19624296 A DE19624296 A DE 19624296A DE 19624296 A DE19624296 A DE 19624296A DE 19624296 A1 DE19624296 A1 DE 19624296A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- tappet
- actuating device
- combustion engine
- internal combustion
- 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- Withdrawn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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Description
Die Erfindung betrifft eine elektromagnetische Betätigungsvorrichtung für Brennkraftmaschinen-Hubventile mit einem im Aktuatorgehäuse der Betäti gungsvorrichtung geführten Ventilbetätigungsstößel, der unter Zwischenwir kung eines hydraulischen Ventilspiel-Ausgleichselementes auf den Schaft des Hubventiles einwirkt.The invention relates to an electromagnetic actuator for Internal combustion engine lift valves with one in the actuator housing of the actuator supply device-guided valve actuating plunger, which under intermediate kung a hydraulic valve lash compensation element on the stem acts on the globe valve.
Zum bekannten Stand der Technik wird beispiels halber auf die DE 195 11 880 A1 verwiesen.For example, the known prior art for the sake of reference to DE 195 11 880 A1.
Eine elektromagnetische Hubventil-Betätigungsvorrichtung hat immense Vorteile, da die sog. Ventilsteuerzeiten, d. h. der Öffnungszeitpunkt und der Schließzeitpunkt der Hubventile, sowie der Ventilhub und Ventilhubverlauf frei einstellbar sind. Dabei sollte jedoch auch an einer derartigen elektro magnetischen Hubventil-Betätigungsvorrichtung irgendeine Möglichkeit zum Ausgleich des Ventilspieles vorgesehen sein, insbesondere in Zusammen wirkung mit einem an sich bekannten Ventilspiel-Ausgleichselement. Eine mögliche Konstruktion hierfür ist in der oben genannten Schrift gezeigt, wel che jedoch aufgrund des zwischengeschalteten Kipp- oder Schwinghebels, welcher sich auf einem derartigen Ventilspiel-Ausgleichselement abstützt, aufwendig ist.An electromagnetic lift valve actuator has immense Advantages because the so-called valve timing, d. H. the opening time and the Closing time of the globe valves, as well as the valve lift and valve lift curve are freely adjustable. However, it should also be on such an electro magnetic lift valve actuator any way to Compensation for the valve clearance may be provided, especially in combination effect with a known valve lash compensation element. A possible construction for this is shown in the above-mentioned document, wel che, however, due to the intermediate rocker or rocker arm, which is supported on such a valve clearance compensation element, is complex.
Aufgabe der vorliegenden Erfindung ist es, eine demgegenüber einfachere Anordnung eines an sich bekannten hydraulischen Ventilspiel-Ausgleichs elementes aufzuzeigen.The object of the present invention is a simpler one Arrangement of a known hydraulic valve lash compensation element.
Zur Lösung dieser Aufgabe ist vorgesehen, daß das Ventilspiel-Ausgleichs element in einem zwischen dem Ventilbetätigungsstößel und dem Hubventil- Schaft angeordneten Tassenstößel eingesetzt ist, der seinerseits in Ven tilachsrichtung verschiebbar in einer Bodenplatte des Aktuatorgehäuses ge führt ist. Vorteilhafte Aus- und Weiterbildungen sind Inhalt der Unteransprü che.To solve this problem it is provided that the valve clearance compensation element in a between the valve actuating tappet and the lift valve Shaft arranged tappet is used, which in turn in Ven tilachsrichtung slidably in a bottom plate of the actuator housing ge leads is. Advantageous training and further education are included in the subclaims che.
Näher erläutert wird die Erfindung anhand zweier bevorzugter Ausführungs beispiele, wobei in den beiden Fig. 1, 2 jeweils ein Längsschnitt durch eine elektromagnetische Betätigungsvorrichtung mit zu betätigendem Hub ventil dargestellt ist und gleiche Bauelemente stets mit gleichen Bezugs ziffern bezeichnet sind. Fig. 3 zeigt vergrößert die Umgebung des Ventilspiel- Ausgleichselementes aus Fig. 2.The invention is explained in more detail with reference to two preferred embodiments, wherein in each of the two FIGS. 1, 2 a longitudinal section through an electromagnetic actuating device with a valve to be actuated is shown and the same components are always designated with the same reference numerals. FIG. 3 shows an enlarged view of the surroundings of the valve lash compensation element from FIG. 2.
Zur Betätigung eines Brennkraftmaschinen-Hubventiles 1, das in bekannter Weise im Brennkraftmaschinen-Zylinderkopf 2 angeordnet ist, ist eine in ihrer Gesamtheit mit 3 bezeichnete elektromagnetische Betätigungsvorrichtung vorgesehen. Diese besteht aus einem sog. Aktuatorgehäuse 4, innerhalb dessen zwei Magnetspulen 5 angeordnet sind, zwischen denen eine Anker platte 6 in Ventilachsrichtung 7 längsverschiebbar gelagert ist. Diese Anker platte 6 wird durch die entsprechend erregten Magnetspulen 5 bewegt und überträgt ihre Bewegung über einen Ventilbetätigungsstößel 8 letztlich auf den Schaft 1′ des Hubventiles 1.To actuate an internal combustion engine lift valve 1 , which is arranged in a known manner in the internal combustion engine cylinder head 2 , an electromagnetic actuation device, designated in its entirety by 3, is provided. This consists of a so-called. Actuator housing 4 , within which two solenoids 5 are arranged, between which an armature plate 6 is mounted longitudinally displaceably in the valve axis direction 7 . This anchor plate 6 is moved by the correspondingly excited solenoids 5 and transmits its movement via a valve actuating plunger 8 ultimately to the shaft 1 'of the globe valve 1 .
Zwischen dem dem Schaft 1′ zugewandten Ende des Ventilbetätigungs stößels 8 sowie dem freien Ende des Schaftes 1′ ist ein Tassenstößel 9 vor gesehen, der ein übliches, gängiges Ventilspiel-Ausgleichselement 10 trägt, wobei sich die beiden Enden dieses Ausgleichselementes 10 an der Innen seite des Tassenstößels 9 einerseits und am freien Ende des Schaftes 1′ andererseits abstützen. Der Tassenstößel 9 ist dabei in einer sog. Boden platte 4′ des Aktuatorgehäuses 4 geführt und zwar ebenfalls längsverschieb bar in Ventilachsrichtung 7, um die Bewegung des Ventilbetätigungsstößels 8 auf das Hubventil 1 übertragen zu können.Between the shaft 1 'facing towards the end of the valve actuating tappet 8 and the free end of the shaft 1' is seen 9 in front of a cup tappet, which carries a conventional, common valve-clearance compensating element 10, wherein the two ends of this compensating element 10 side by the inner the tappet 9 on the one hand and at the free end of the shaft 1 'on the other hand. The tappet 9 is in a so-called. Floor plate 4 'of the actuator housing 4 and also longitudinally displaceable bar in the valve axis direction 7 in order to be able to transmit the movement of the valve actuating tappet 8 to the globe valve 1 .
Beim Ausführungsbeispiel nach Fig. 1 ist die tatsächlich plattenförmig gestal tete Bodenplatte 4′ mit einer entsprechenden kreiszylindrischen Aufnahme 11 versehen, in welcher der Tassenstößel 9 direkt verschiebbar gelagert ist. Gegen Herausfallen bei der Montage gesichert ist der Tassenstößel 9 dabei mittels eines Sprengringes 12, wobei eine Nut 13 in der Außenwand des Tassenstößels 9 die freie Verschiebbarkeit gegenüber dem Sprengring 12 im benötigten Umfang sicherstellt. Beim Ausführungsbeispiel nach Fig. 2 ist der Tassenstößel 9 in einer Büchse 14 geführt, die in die Aufnahme 11 der hier dicker gestalteten Bodenplatte 4′ - diese nimmt zusätzliche die untere Ma gnetspule 5 auf - eingesetzt ist. Auch beim Ausführungsbeispiel nach Fig. 2 ist der Tassenstößel 9 über einen Sprengring 12 wieder gegen Herausfallen gesichert.In the embodiment according to FIG. 1, the actually plate-shaped bottom plate 4 'is provided with a corresponding circular-cylindrical receptacle 11 , in which the tappet 9 is directly displaceably mounted. The tappet 9 is secured against falling out during assembly by means of a snap ring 12 , a groove 13 in the outer wall of the tappet 9 ensuring the free displacement relative to the snap ring 12 to the required extent. In the embodiment of FIG. 2, the tappet 9 is guided in a sleeve 14 , which in the receptacle 11 of the thicker base plate 4 '- this additionally takes the lower magnetic coil 5 - is used. In the exemplary embodiment according to FIG. 2, the tappet 9 is secured against falling out again by means of a snap ring 12 .
Wie ersichtlich ist bei beiden Ausführungsbeispielen der Außendurchmesser des Tassenstößels 9 klein gegenüber demjenigen des Aktuatorgehäuses 4, d. h. der Außendurchmesser des Tassenstößels 9 beträgt im wesentlichen nur den um die doppelte Wandstärke der Tassenstößel-Wand vergrößerten Außendurchmesser des gängigen Ventilspiel-Ausgleichselementes 10. Insofern unterscheidet sich dieser im Hinblick auf ein minimales Eigengewicht optimierte Tassenstößel 9 wesentlich von gängigen Tassenstößeln, die übli cherweise direkt im Brennkraftmaschinen-Zylinderkopf gelagert sind, ein Ausgleichselement aufnehmen und dabei direkt von Nocken betätigt werden.As can be seen in both exemplary embodiments, the outside diameter of the cup tappet 9 is small compared to that of the actuator housing 4 , ie the outside diameter of the cup tappet 9 is essentially only the outside diameter of the common valve lash compensation element 10 which is increased by twice the wall thickness of the cup tappet wall. In this respect, this cup tappet 9 , which is optimized with regard to a minimum dead weight, differs significantly from common cup tappets, which are usually mounted directly in the internal combustion engine cylinder head, accommodate a compensating element and are actuated directly by cams.
In der Bodenplatte 4′ verläuft ein Ölversorgungskanal 15 für das hydrauli sche Ventilspiel-Ausgleichselement 10, der einerseits über einen Stichkanal 16′ mit einem Ölkanal 16 im Zylinderkopf 2 in Verbindung steht und anderer seits an der Außenwand des Tassenstößels 9 mündet. Von hier gelangt das Hydraulikmedium bzw. Schmieröl wie üblich zum hydraulischen Ventilspiel- Ausgleichselement 10. Der detaillierte Aufbau des Aktuatorgehäuses 4 so wie die Lagerung der elektromagnetischen Betätigungsvorrichtung 3 im Zy linderkopf 2 ist an dieser Stelle nicht näher beschrieben und kann gestaltet sein wie in der nicht vorveröffentlichten Patentanmeldung 196 11 547, je doch kann dies sowie eine Vielzahl weiterer Details durchaus abweichend von den gezeigten Ausführungsbeispielen gestaltet sein, ohne den Inhalt der Patentansprüche zu verlassen.In the bottom plate 4 'runs an oil supply channel 15 for the hydraulic cal valve lash compensating element 10 , which is connected on the one hand via a branch channel 16 ' with an oil channel 16 in the cylinder head 2 and other side opens on the outer wall of the tappet 9 . From here, the hydraulic medium or lubricating oil, as usual, reaches the hydraulic valve lash compensation element 10 . The detailed structure of the actuator housing 4 as well as the storage of the electromagnetic actuating device 3 in the cylinder head 2 is not described in more detail at this point and can be designed as in the unpublished patent application 196 11 547, but this and a large number of further details may vary be designed by the exemplary embodiments shown, without leaving the content of the claims.
Claims (3)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19624296A DE19624296A1 (en) | 1996-06-18 | 1996-06-18 | Electromagnetic actuating device for internal combustion engine lift valves |
DE59701027T DE59701027D1 (en) | 1996-06-18 | 1997-04-24 | Electromagnetic actuating device for internal combustion engine lift valves |
EP97106783A EP0814238B1 (en) | 1996-06-18 | 1997-04-24 | Electromagnetic actuating device for lift valves of internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19624296A DE19624296A1 (en) | 1996-06-18 | 1996-06-18 | Electromagnetic actuating device for internal combustion engine lift valves |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19624296A1 true DE19624296A1 (en) | 1998-01-02 |
Family
ID=7797269
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19624296A Withdrawn DE19624296A1 (en) | 1996-06-18 | 1996-06-18 | Electromagnetic actuating device for internal combustion engine lift valves |
DE59701027T Expired - Lifetime DE59701027D1 (en) | 1996-06-18 | 1997-04-24 | Electromagnetic actuating device for internal combustion engine lift valves |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59701027T Expired - Lifetime DE59701027D1 (en) | 1996-06-18 | 1997-04-24 | Electromagnetic actuating device for internal combustion engine lift valves |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0814238B1 (en) |
DE (2) | DE19624296A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19728479A1 (en) * | 1997-07-05 | 1999-01-07 | Daimler Benz Ag | Device for actuating a gas exchange valve with an electromagnetic actuator |
DE19831250C1 (en) * | 1998-07-11 | 1999-10-07 | Daimler Chrysler Ag | Solenoid operated poppet valve for internal combustion engine |
DE19825412A1 (en) * | 1998-06-06 | 1999-12-09 | Daimler Chrysler Ag | System for operating gas changing valve of IC engine with hydraulic play compensating element and electromagnetic actuator |
DE19831520A1 (en) * | 1998-07-14 | 2000-01-20 | Schaeffler Waelzlager Ohg | Electromagnetic valve drive which is built into cylinder head of IC engine has valve drive with devices for centering middle position of closing and opening magnets, relative to half stroke of armature |
US6047673A (en) * | 1998-04-07 | 2000-04-11 | Fev Motorentecnik Gmbh | Electromagnetic actuator for a cylinder valve including an integrated valve lash adjuster |
DE19851679C1 (en) * | 1998-11-10 | 2000-05-31 | Daimler Chrysler Ag | Electromagnetic valve actuator starting involves periodically stimulating magnet during starting, setting current level so valve disc contacts valve seat without armature reaching magnet |
EP1076162A2 (en) | 1999-08-13 | 2001-02-14 | Bayerische Motoren Werke Aktiengesellschaft | Electromagnetic valve drive mechanism for a piston engine lift valve |
DE10018559C1 (en) * | 2000-04-14 | 2001-06-21 | Daimler Chrysler Ag | Electromagnetic actuator for stroke valve in IC engine cylinder has guide sleeve of separate sintered component with stretched neck acting as valve actuator guide |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998042953A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Valve for an internal combustion engine |
DE19745522C2 (en) * | 1997-10-15 | 2001-03-22 | Daimler Chrysler Ag | Device for actuating a gas exchange valve of a reciprocating piston internal combustion engine |
DE19826832A1 (en) * | 1998-06-16 | 1999-12-23 | Fev Motorentech Gmbh | Electromagnetic actuator for operating gas exchange valve on IC piston engine |
DE19837837C1 (en) * | 1998-08-20 | 2000-01-05 | Daimler Chrysler Ag | I.c. engine gas changing valve operating device with electromagnetic actuator |
US6354253B1 (en) * | 1998-11-20 | 2002-03-12 | Toyota Jidosha Kabushiki Kaisha | Solenoid valve device |
DE10000045A1 (en) | 2000-01-02 | 2001-07-05 | Leiber Heinz | Electromagnetic actuator |
JP3614092B2 (en) * | 2000-08-15 | 2005-01-26 | 日産自動車株式会社 | Valve clearance estimation device and control device for electromagnetically driven valve |
FR2864574B1 (en) * | 2003-12-24 | 2006-02-10 | Peugeot Citroen Automobiles Sa | POWER SUPPLY CIRCUIT FOR A HYDRAULIC STOP, FOR RETRIEVING THE OPERATING SET BETWEEN A VALVE OF AN INTERNAL COMBUSTION ENGINE AND ITS ACTUATION DEVICE |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4035376A1 (en) * | 1989-11-16 | 1991-05-23 | Volkswagen Ag | IC engine cylinder head valve - has magnetic stop limiting opening movement of valve |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3311250C2 (en) * | 1983-03-28 | 1985-08-01 | FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen | Device for the electromagnetic actuation of a gas exchange valve for positive displacement machines |
DE3920976A1 (en) * | 1989-06-27 | 1991-01-03 | Fev Motorentech Gmbh & Co Kg | ELECTROMAGNETIC OPERATING DEVICE |
US5127375A (en) * | 1991-04-04 | 1992-07-07 | Ford Motor Company | Hydraulic valve control system for internal combustion engines |
-
1996
- 1996-06-18 DE DE19624296A patent/DE19624296A1/en not_active Withdrawn
-
1997
- 1997-04-24 DE DE59701027T patent/DE59701027D1/en not_active Expired - Lifetime
- 1997-04-24 EP EP97106783A patent/EP0814238B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4035376A1 (en) * | 1989-11-16 | 1991-05-23 | Volkswagen Ag | IC engine cylinder head valve - has magnetic stop limiting opening movement of valve |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19728479A1 (en) * | 1997-07-05 | 1999-01-07 | Daimler Benz Ag | Device for actuating a gas exchange valve with an electromagnetic actuator |
WO1999002823A1 (en) * | 1997-07-05 | 1999-01-21 | Daimlerchrysler Ag | Device for operating a gas shuttle valve by means of an electromagnetic actuator |
DE19728479C2 (en) * | 1997-07-05 | 2001-08-30 | Daimler Chrysler Ag | Device for actuating a gas exchange valve with an electromagnetic actuator |
US6502804B1 (en) | 1997-07-05 | 2003-01-07 | Daimlerchrysler Ag | Device for operating a gas shuttle valve by means of an electromagnetic actuator |
US6047673A (en) * | 1998-04-07 | 2000-04-11 | Fev Motorentecnik Gmbh | Electromagnetic actuator for a cylinder valve including an integrated valve lash adjuster |
DE19825412A1 (en) * | 1998-06-06 | 1999-12-09 | Daimler Chrysler Ag | System for operating gas changing valve of IC engine with hydraulic play compensating element and electromagnetic actuator |
DE19825412C2 (en) * | 1998-06-06 | 2001-10-25 | Daimler Chrysler Ag | Device for actuating a gas exchange valve |
DE19831250C1 (en) * | 1998-07-11 | 1999-10-07 | Daimler Chrysler Ag | Solenoid operated poppet valve for internal combustion engine |
DE19831520A1 (en) * | 1998-07-14 | 2000-01-20 | Schaeffler Waelzlager Ohg | Electromagnetic valve drive which is built into cylinder head of IC engine has valve drive with devices for centering middle position of closing and opening magnets, relative to half stroke of armature |
DE19851679C1 (en) * | 1998-11-10 | 2000-05-31 | Daimler Chrysler Ag | Electromagnetic valve actuator starting involves periodically stimulating magnet during starting, setting current level so valve disc contacts valve seat without armature reaching magnet |
EP1076162A2 (en) | 1999-08-13 | 2001-02-14 | Bayerische Motoren Werke Aktiengesellschaft | Electromagnetic valve drive mechanism for a piston engine lift valve |
DE10018559C1 (en) * | 2000-04-14 | 2001-06-21 | Daimler Chrysler Ag | Electromagnetic actuator for stroke valve in IC engine cylinder has guide sleeve of separate sintered component with stretched neck acting as valve actuator guide |
Also Published As
Publication number | Publication date |
---|---|
EP0814238B1 (en) | 2000-01-19 |
EP0814238A1 (en) | 1997-12-29 |
DE59701027D1 (en) | 2000-02-24 |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |