EP0864729B1 - Rotator for a valve in an internal combustion engine - Google Patents
Rotator for a valve in an internal combustion engine Download PDFInfo
- Publication number
- EP0864729B1 EP0864729B1 EP97103697A EP97103697A EP0864729B1 EP 0864729 B1 EP0864729 B1 EP 0864729B1 EP 97103697 A EP97103697 A EP 97103697A EP 97103697 A EP97103697 A EP 97103697A EP 0864729 B1 EP0864729 B1 EP 0864729B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- fact
- base body
- cage
- pockets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F01L1/32—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for rotating lift valves, e.g. to diminish wear
-
- 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
- F01L2301/00—Using particular materials
Definitions
- the invention relates to a valve turning device for turning a poppet valve for internal combustion engines during the Opening or closing movement of the valve using of spherical rolling elements which are concentric around the Axis of a body of the valve rotating device arranged body pockets with inclined planes through in the pockets act tangentially when the rolling elements are loaded compressible springs towards the flatter sides the bags are loaded and with one of the bags opposite, in the valve axis direction through the Valve closing spring exciting, disc-shaped spring element, the one serving as a valve spring support Device lid is resilient, cooperate with the Rolling elements of this spring element alternately in Valve axis direction for its relative rotation with respect to Base body alternately relieved and loaded.
- tangentially acting coil springs tangential springs
- steel balls pressed against the upper end of oblique raceways of a base body.
- tangential springs tangential springs
- On a disc spring is supported on the inner edge of the base body, via which to Initiation of the valve spring forces a cover engages. opens the valve, the Disc spring flattened due to the increasing valve spring force. In doing so, it burdens balls in the pockets of the body force them to roll off their sloping tracks and rolls themselves on the balls. Your so generated Rotational movement corresponds to the double rolling path of the balls.
- the pressure of the disc spring on the inner edge of the base body reduced so that sliding takes place here.
- Lid and disc spring are non-rotatably connected by friction.
- the relative rotation between Belleville washer / cover and base body is over cover, valve springs, valve spring retainer and transfer cone pieces to the valve.
- A occurs when the valve closes Relief of the plate spring and thus the balls, which then roll through without the tangential springs are pushed back into their starting position.
- German Patent 1 955 shows 820 and German Offenlegungsschrift 21 10 708 devices which the rotation of a valve with the help of a disc-shaped Spring element cause stored energy. Further Possibilities of a valve rotation during the closing stroke shows the German Offenlegungsschrift 30 04 320.
- a disk-shaped spring (disc spring) is used as a translation element used to load balls in sloping pockets relieve that a rotation occurs over the disc springs, which is used to turn the valve.
- Valve turning devices have high operational reliability expected. Under normal operating conditions and Appropriate maintenance is carried out with a service life of the turning devices calculated in large engines of 10,000 hours and more.
- Sensitive components are the tangential springs due to their small dimensions. They are dynamic due to the mentioned Overload from the balls moving uncontrollably damaged or even completely destroyed. A damaged one Tangential spring affects the function the rotating device and in most cases directs it complete failure.
- the invention has for its object the described Form valve turning devices so that by short-term Uncontrolled vibrations that occur when overloaded of rolling elements and tangential springs and as a result Damage can be avoided.
- the invention draws as a solution is characterized in that the body pockets stop elements to limit the movement distances of the rolling elements. The one that can be precisely determined in all operating situations Rolling path of the rolling elements leaves an uncontrolled Squeeze the tangential spring or roll it over the rolling elements.
- Stop elements are formed by a cage in which a Tangential spring is anchored and inserted into the pocket becomes.
- the spring cage has a defined length, like this it is determined that the rolling element only a predetermined movement can perform and the tangential spring additionally on one Deflection prevents. This will be sustainable against one Damage protected by rolling over.
- the cage can be out Plastic, sheet metal and in the metal sintering process or be produced by investment casting.
- a plate spring 1 is supported on rolling elements 2 and flat curious; excited. Since in the example shown they are also on balls 6 in one concentric parallel path ( Figures 2 and 4) supports, the rolling elements 2 at tensioned disc spring 1 relieved. The balls 6 form support points, see above that the disc spring has a lever-like effect.
- the rolling elements 2 run in pocket-shaped recesses 4 one Basic body 3.
- the pockets are raceways with inclinations, for example with the angle ⁇ , provided against the plane of the tensioned disc spring which they roll off as they move.
- Compression springs 8 for example Coil spring, ensure that the rolling elements 2 always with a relief are pressed against the flatter ends of the pocket-shaped recesses.
- a cover 7 transmits the forces P1-P2 of the valve springs, not shown the disc spring 1.
- Figures 1 and 2 show the rotating device with the valve fully open tensioned disc spring 1 and the position of the rolling elements 2 in the end position Start of rotation.
- the tangential springs 8 previously have the balls 2 in them achievable lowest depth of the inclined raceways 4 pressed, so that they both the disc spring 1 and the Touch raceways 4.
- FIGS. 3 and 4 show the state when the rotation has ended shown.
- the balls 2 are in the reachable for them greatest depth of the raceways 4. They are out of position 1 rolled to position 2 and have a translation by the angle ⁇ , FIG. 4, with the taxiway r x ⁇ , FIG. 3, executed so that the plate spring 1 rotated by 2 ⁇ and has covered the taxiway 2r x ⁇ .
- the raceways 4 of the balls 2 are approximately in the area of the transition from the deepest area to the inclined, flattening Area with constrictions in diameter 9 to limit the rolling movement the balls 2 provided. This narrowing in diameter form stops to which the balls stick when uncontrolled Can create movements. This will cause excessive squeezing the coil springs 8 with all negative consequences prevented.
- Figures 5 and 6 show that the roll limitation the balls 2 is limited by a spring cage 10.
- the front end of the spring cage 10 serves as a ball stop and prevents it from compressing too far and rolling over if necessary the coil spring 8.
- the length of the spring cage, which in the Pocket 4 is set, determines the movement distance of the Balls. At the same time, the cage prevents any deflection the spring, which is therefore sustainable against damage is protected.
Description
Die Erfindung betrifft eine Ventildrehvorrichtung zum Drehen eines Tellerventils für Brennkraftmaschinen während der Öffnungs- oder Schließbewegung des Ventils unter Verwendung von kugelförmigen Wälzkörpern, die in konzentrisch um die Achse eines Grundkörpers der Ventildrehvorrichtung angeordneten Grundkörpertaschen mit schiefen Ebenen durch in den Taschen tangential wirkende, bei Belastung der Wälzkörper zusammendrückbare Federn in Richtung auf die flacheren Seiten der Taschen belastet werden und mit einem den Taschen gegenüberliegenden, in Ventilachsrichtung durch die Ventilschließfeder spannenden, scheibenförmigen Federelement, das über einen als Ventilfederauflage dienenden Vorrichtungsdeckel belastbar ist, zusammenwirken, wobei die Wälzkörper von diesem Federelement abwechselnd in Ventilachsrichtung zu dessen relativer Drehung gegenüber dem Grundkörper abwechselnd entlastet und belastet werden.The invention relates to a valve turning device for turning a poppet valve for internal combustion engines during the Opening or closing movement of the valve using of spherical rolling elements which are concentric around the Axis of a body of the valve rotating device arranged body pockets with inclined planes through in the pockets act tangentially when the rolling elements are loaded compressible springs towards the flatter sides the bags are loaded and with one of the bags opposite, in the valve axis direction through the Valve closing spring exciting, disc-shaped spring element, the one serving as a valve spring support Device lid is resilient, cooperate with the Rolling elements of this spring element alternately in Valve axis direction for its relative rotation with respect to Base body alternately relieved and loaded.
Es ist bekannt, Ventildrehvorrichtungen in Otto- und Dieselmotoren zu verwenden, die die axial wirkende, steigende Ventilfederkraft beim Öffnen des Ventils ausnutzen, um die Drehung hervorzurufen. Dabei wird erfahrungsgemäß erreicht, daß sich das Ventil während des Öffnens um einige Winkelgrade dreht, jedoch während der Schließbewegung keine Rotationsbewegung mehr ausführt, um unnötigen Verschleiß am Ventilsitz zu vermeiden.It is known to turn valve devices in Otto and To use diesel engines, the axially acting, rising Use the valve spring force when opening the valve in order to Cause rotation. Experience has shown that that the valve moves a few degrees during opening turns, however no longer performs a rotational movement during the closing movement to avoid unnecessary wear on the valve seat.
Bei einer Vorrichtung zum Drehen eines Ventils während der Öffnungsbewegung werden durch tangential wirkende Schraubenfedem (Tangentialfedern) Stahlkugeln an das obere Ende von schrägen Laufbahnen eines Grundkörpers gedrückt. Auf dem Innenrand des Grundkörpers stützt sich eine Tellerfeder ab, über die zur Einleitung der Ventilfederkräfte ein Deckel greift. öffnet das Ventil, wird die Tellerfeder durch die ansteigende Ventilfederkraft abgeflacht. Dabei belastet sie die in den Taschen des Grundkörpers befindlichen Kugeln, zwingt sie zum Abrollen auf ihren schrägen Laufbahnen und rollt selbst auf den Kugeln ab. Ihre so erzeugte Drehbewegung entspricht dem doppelten Rollweg der Kugeln. Durch die Abstützung auf den Kugeln wird der Druck der Tellerfeder auf den Innenrand des Grundkörpers verringert, so daß hier ein Gleiten stattfindet. Deckel und Tellerfeder hingegen sind durch Reibschluß drehfest miteinander verbunden. Die relative Drehung zwischen Tellerfeder/Deckel und Grundkörper wird über Deckel, Ventilfedern, Ventilfederteller und Kegelstücke auf das Ventil übertragen. Bei schließendem Ventil tritt eine Entlastung der Tellerfeder und damit der Kugeln ein, die dann ohne zu rollen durch die Tangentialfedern wieder in ihre Ausgangslage zurückgeschoben werden.In a device for rotating a valve during the opening movement are made from tangentially acting coil springs (tangential springs) steel balls pressed against the upper end of oblique raceways of a base body. On a disc spring is supported on the inner edge of the base body, via which to Initiation of the valve spring forces a cover engages. opens the valve, the Disc spring flattened due to the increasing valve spring force. In doing so, it burdens balls in the pockets of the body force them to roll off their sloping tracks and rolls themselves on the balls. Your so generated Rotational movement corresponds to the double rolling path of the balls. By the support on the balls, the pressure of the disc spring on the inner edge of the base body reduced so that sliding takes place here. Lid and disc spring, however, are non-rotatably connected by friction. The relative rotation between Belleville washer / cover and base body is over cover, valve springs, valve spring retainer and transfer cone pieces to the valve. A occurs when the valve closes Relief of the plate spring and thus the balls, which then roll through without the tangential springs are pushed back into their starting position.
Bei einem mit Schweröl betriebenen Dieselmotor ist dagegen eine Drehbewegung des Ventils während des Schließens erwünscht, um die sich bildenden glasurartigen Ablagerungen zu entfernen. Das Ventil setzt dabei nocht rotierend auf seinem Sitz auf.In contrast, in the case of a diesel engine operated with heavy oil, there is a rotary movement of the valve during closing is desirable to prevent the glaze-forming To remove deposits. The valve is still rotating on its seat on.
So zeigen beispielsweise die deutsche Patentschrift 1 955
820 und die deutsche Offenlegungsschrift 21 10 708 Vorrichtungen, welche
die Drehung eines Ventils mit Hilfe der in einem scheibenförmigen
Federelement gespeicherten Energie bewirken. Weitere
Möglichkeiten einer Ventildrehung während des Schließhubs
zeigt die deutsche Offenlegungsschrift 30 04 320. Eine scheibenförmige
feder (Tellerfeder) wird als übersetzungselement
benutzt, um in schrägen Taschen laufende Kugeln so zu be- und
entlasten, daß über die Tellerfedern eine Rotation entsteht,
welche zur Drehung des Ventils genutzt wird.For example,
Neben der Reduzierung von Ablagerungen auf dem Ventilsitz wird durch eine gleichmäßige, dem Ventil aufgezwungene Drehung eine Verminderung des Verschleißes und eine Egalisierung der Ventilkopftemperaturen erreicht.In addition to reducing deposits on the valve seat through an even rotation forced on the valve a reduction in wear and an equalization of the Valve head temperatures reached.
Von Ventildrehvorrichtungen wird eine hohe Betriebszuverlässigkeit erwartet. Bei normalen Betriebsbedingungen und einer entsprechenden Wartung wird mit einer Standzeit der Drehvorrichtungen in Großmotoren von 10.000 Stunden und mehr gerechnet.Valve turning devices have high operational reliability expected. Under normal operating conditions and Appropriate maintenance is carried out with a service life of the turning devices calculated in large engines of 10,000 hours and more.
Bei Motoren, die kurzzeitig im überlastbereich laufen, und bei einem instationären Betrieb steigen die Belastungen der Drehvorrichtungen jedoch ganz erheblich. Empfindliche Bauteile sind hierbei infolge ihrer geringen Abmessungen die Tangentialfedern. Sie werden aufgrund der erwähnten dynamischen überlast von den sich dann unkontrolliert bewegenden Kugeln beschädigt oder sogar vollends zerstört. Eine beschädigte Tangentialfeder führt zu einer Beeinträchtigung der Funktion der Drehvorrichtung und leitet in den meisten Fällen deren kompletten Ausfall ein.For motors that run briefly in the overload range, and in a transient operation, the loads on the Rotating devices, however, quite considerably. Sensitive components are the tangential springs due to their small dimensions. They are dynamic due to the mentioned Overload from the balls moving uncontrollably damaged or even completely destroyed. A damaged one Tangential spring affects the function the rotating device and in most cases directs it complete failure.
Der Erfindung liegt die Aufgabe zugrunde, die beschriebenen Ventildrehvorrichtungen so auszubilden, daß durch kurzzeitige Überlastungen auftretende unkontrollierte Schwingungsvorgänge von Wälzkörpern und Tangentialfedern und als deren Folge Schäden vermieden werden. Die Erfindung als Lösung zeichnet sich dadurch aus, daß die Grundkörpertaschen Anschlagelemente zum Begrenzen der Bewegungsstrecken der Wälzkörper aufweisen. Der dadurch bei allen Betriebssituationen genau bestimmbare Rollweg der Wälzkörper läßt ein unkontrolliertes Zusammendrücken der Tangentialfeder oder ein überrollen durch den Wälzkörper nicht zu.The invention has for its object the described Form valve turning devices so that by short-term Uncontrolled vibrations that occur when overloaded of rolling elements and tangential springs and as a result Damage can be avoided. The invention draws as a solution is characterized in that the body pockets stop elements to limit the movement distances of the rolling elements. The one that can be precisely determined in all operating situations Rolling path of the rolling elements leaves an uncontrolled Squeeze the tangential spring or roll it over the rolling elements.
Anschlagelemente werden durch einen Käfig gebildet, in dem eine Tangentialfeder verankert ist und der in die Tasche eingesetzt wird. Der Federkäfig hat eine definierte Länge, die so bestimmt ist, daß der Wälzkörper nur eine vorgegebene Bewegung ausführen kann und die Tangentialfeder zusätzlich an einem Auslenken hindert. Diese wird somit nachhaltig gegen eine Beschädigung durch überrollen geschützt. Der Käfig kann aus Kunststoff, aus Blech sowie im Metallsinterverfahren oder mittels Feinguß hergestellt werden.Stop elements are formed by a cage in which a Tangential spring is anchored and inserted into the pocket becomes. The spring cage has a defined length, like this it is determined that the rolling element only a predetermined movement can perform and the tangential spring additionally on one Deflection prevents. This will be sustainable against one Damage protected by rolling over. The cage can be out Plastic, sheet metal and in the metal sintering process or be produced by investment casting.
In Zeichnungen ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt und nachstehend erläutert. Bei den gezeigten Beispielen handelt es sich um eine Ventildrehvorrichtung, die dem Ventil während der Schließbewegung eine Drehung mitteilt.In drawings is an embodiment of the invention shown schematically and explained below. Both The examples shown are one Valve rotating device that the valve during the Closing movement announces a rotation.
Es zeigen:
Figur 1- einen Teil eines Tangentialschnitts einer Drehvorrichtung auf dem Kugelteilkreis (Radius r) bei voll geöffnetem Ventil, (Stand der Technik).
Figur 2- die Drehvorrichtung gem.
Figur 1 in der Draufsicht, Figur 3- den Tangentialschnitt durch die Drehvorrichtung nach den
Figuren 1 und 2 bei beendeter Drehung nach der Ventilschließung, Figur 4- die Draufsicht auf die Ventildrehvorrichtung nach beendeter Drehung,
- Figur 5
- einen Tangentialschnitt durch eine Drehvorrichtung bei voll geöffnetem Ventil mit einem Wälzkörperkäfig gemäß der Erfindung und
Figur 6- die Draufsicht auf die Ausführung gemäß Figur 5 bei voll geöffnetem Ventil.
- Figure 1
- a part of a tangential section of a rotating device on the spherical pitch circle (radius r) with the valve fully open, (prior art).
- Figure 2
- the rotating device acc. 1 in plan view,
- Figure 3
- 2 shows the tangential section through the rotating device according to FIGS. 1 and 2 when the rotation has ended after the valve has closed,
- Figure 4
- the top view of the valve rotating device after rotation has ended,
- Figure 5
- a tangential section through a rotating device with a fully open valve with a rolling element cage according to the invention and
- Figure 6
- the top view of the embodiment of Figure 5 with the valve fully open.
Gemäß Figur 1 ist eine Tellerfeder 1 auf Wälzkörpern 2 abgestützt und flach
gespannt. Da sie sich bei dem gezeigten Beispiel zusätzlich auf Kugeln 6 in einer
konzentrischen Parallelbahn (Figuren 2 und 4) abstützt, sind die Wälzkörper 2 bei
gespannter Tellerfeder 1 entlastet. Die Kugeln 6 bilden Unterstützungspunkte, so
daß die Tellerfeder eine hebelartige Wirkung hat.According to Figure 1, a
Die Wälzkörper 2 laufen in taschenförmigen Ausnehmungen 4 eines
Grundkörpers 3. In den Taschen sind Laufbahnen mit Neigungen, beispielweise
mit dem Winkel α, gegen die Ebene der gespannten Tellerfeder vorgesehen, auf
denen sie während ihrer Bewegung abrollen. Druckfedern 8, beispielsweise
Schraubenfedem, sorgen dafür, daß die Wälzkörper 2 bei einer Entlastung immer
an die flacheren Enden der taschenförmigen Ausnehmungen gedrückt werden.
Ein Deckel 7 überträgt die Kräfte P1-P2 der nicht dargestellten Ventilfedern auf
die Tellerfeder 1.The
Die Figuren 1 und 2 zeigen die Drehvorrichtung bei voll geöffnetem Ventil mit
gespannter Tellerfeder 1 und die Lage der Wälzkörper 2 in der Endstellung vor
Beginn der Drehung. Die Tangentialfedern 8 haben zuvor die Kugeln 2 in die für sie
erreichbare geringste Tiefe der geneigten Laufbahnen 4 gedrückt,
so daß sie sowohl die Tellerfeder 1 als auch die
Laufbahnen 4 berühren.Figures 1 and 2 show the rotating device with the valve fully open
tensioned
Wird die von der Ventilfeder aufgebrachte konzentrische Axialkraft
P 2 beim Schließen des Ventils vermindert, zuletzt bis
auf P 1, so übt die gespannte Tellerfeder 1 Kräfte auf die
Kugeln 2 aus, die dann nach deren Maßgabe durch deren Kraftkomponenten
in Umfangsrichtung in den Laufbahnen 4 abrollen,
und ihre Rollbewegung auf die Tellerfeder 1 übertragen, die
dadurch den doppelten Rollweg der Kugeln 2 zurücklegt und so
zusammen mit dem Deckel 7 um die Achse des Grundkörpers rotiert.Becomes the concentric axial force exerted by the
In den Figuren 3 und 4 ist der Zustand bei beendeter Drehung
dargestellt. Die Kugeln 2 befinden sich in der für sie erreichbaren
größten Tiefe der Laufbahnen 4. Sie sind von Position
1 zu Position 2 gerollt und haben dabei eine Translation
um den Winkel ϕ , Figur 4, mit dem Rollweg r x ϕ , Figur 3,
ausgeführt, so daß sich die Tellerfeder 1 um 2ϕ gedreht und
den Rollweg 2r x ϕ zurückgelegt hat.FIGS. 3 and 4 show the state when the rotation has ended
shown. The
Die Laufbahnen 4 der Kugeln 2 sind etwa im Bereich des Übergangs
vom tiefsten Bereich in den geneigten, flacher werdenden
Bereich mit Durchmesserverengungen 9 zur Begrenzung der Rollbewegung
der Kugeln 2 versehen. Diese Durchmesserverengungen
bilden Anschläge, an die sich die Kugeln bei unkontrollierten
Bewegungen anlegen können. Dadurch wird ein übermäßiges Zusammendrücken
der Schraubenfedern 8 mit allen negativen Folgen
verhindert.The
Die Figuren 5 und 6 lassen erkennen, daß die Rollbegrenzung
der Kugeln 2 durch einen Federkäfig 10 begrenzt wird. Sofern
der Rollweg der Kugeln durch kurzzeitige Überlastvorgänge zu
groß, d. h. die Schraubenfeder 8 zu weit zusammengedrückt wird,
dient das vordere Ende des Federkäfigs 10 als Kugelanschlag
und verhindert das zu weite Zusammendrücken und ggf. überrollen
der Schraubenfeder 8. Die Länge des Federkäfigs, der in die
Tasche 4 gesetzt wird, bestimmt die Bewegungsstrecke der
Kugeln. Gleichzeitig verhindert der Käfig ein etwaiges Auslenken
der Feder, die somit nachhaltig gegen Beschädigungen
geschützt ist.Figures 5 and 6 show that the roll limitation
the
Claims (6)
- A valve rotating device for rotating a mushroom valve for internal combustion engines during the opening or closing movement of the valve by utilizing spherical rolling bodies (2) that are arranged in base body pockets (4) with inclined planes which are concentrically situated around the axis of a base body (3), wherein said rolling bodies are acted upon in the direction of the flatter sides of the pockets by springs (8) that tangentially act in the pockets and can be compressed when the rolling bodies are subjected to a load, wherein said rolling bodies cooperate with a disk-shaped spring element (1) that is situated opposite of the pockets and can be acted upon with a device cover (7) that serves as a valve spring support, wherein the disk-shaped spring element can be tensioned in the axial direction of the valve by a valve closing spring, and wherein the spherical rolling bodies are alternately subjected to and alleviated from a load in the axial direction of the valve by this spring element (1) in order to turn the valve relative to the base body (3), characterized by the fact that a cage (10) for the tangential springs (8) is arranged within each base body pocket.
- The device according to Claim 1, characterized by the fact that each base body pocket (4) contains a diameter contraction (9).
- The device according to one of the preceding claims, characterized by the fact that the cage is manufactured from plastic.
- The device according to one of the preceding claims, characterized by the fact that the cage is manufactured from sheet metal.
- The device according to one of the preceding claims, characterized by the fact that the cage consists of sintered metal.
- The device according to one of the preceding claims, characterized by the fact that the cage consists of a precision casting material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97103697A EP0864729B1 (en) | 1997-03-06 | 1997-03-06 | Rotator for a valve in an internal combustion engine |
| DE59710043T DE59710043D1 (en) | 1997-03-06 | 1997-03-06 | Device for rotating a valve for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97103697A EP0864729B1 (en) | 1997-03-06 | 1997-03-06 | Rotator for a valve in an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0864729A1 EP0864729A1 (en) | 1998-09-16 |
| EP0864729B1 true EP0864729B1 (en) | 2003-05-07 |
Family
ID=8226558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97103697A Expired - Lifetime EP0864729B1 (en) | 1997-03-06 | 1997-03-06 | Rotator for a valve in an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0864729B1 (en) |
| DE (1) | DE59710043D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006001077U1 (en) * | 2006-01-24 | 2006-03-23 | Trw Automotive Gmbh | Valve rotator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7100716A (en) * | 1970-01-27 | 1971-07-29 | ||
| GB2040399B (en) * | 1979-01-11 | 1983-01-26 | Fjr Eng Ltd | Valve rotator |
| DE3305421A1 (en) * | 1983-02-17 | 1984-08-23 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Device for rotating internal combustion engine valves |
-
1997
- 1997-03-06 EP EP97103697A patent/EP0864729B1/en not_active Expired - Lifetime
- 1997-03-06 DE DE59710043T patent/DE59710043D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59710043D1 (en) | 2003-06-12 |
| EP0864729A1 (en) | 1998-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2396522A1 (en) | Valve drive of an internal combustion engine | |
| WO2003067038A1 (en) | Switch element for valve actuation in an internal combustion engine | |
| DE112008002557T5 (en) | Lash adjuster | |
| DE10204672A1 (en) | Valve-actuating switch element has two securing rings, thickness of one of which can be varied | |
| DE2757455A1 (en) | VALVE ROTATING DEVICE | |
| DE1955820B1 (en) | Device for rotating a poppet valve for internal combustion engines | |
| DE3004320C2 (en) | Rotating device for a lift valve that can be rotated about its longitudinal axis | |
| WO1993005280A1 (en) | Device for adjusting the force exerted by a valve spring | |
| DE2758199A1 (en) | VALVE ROTATING DEVICE | |
| DE3203791A1 (en) | VALVE DRIVE, ESPECIALLY FOR A MOTOR VEHICLE INTERNAL COMBUSTION ENGINE | |
| EP0864729B1 (en) | Rotator for a valve in an internal combustion engine | |
| EP1268986B1 (en) | Valve rotating device | |
| CH655359A5 (en) | VALVE TURN DEVICE ON AN INTERNAL COMBUSTION ENGINE. | |
| DE2616911C3 (en) | Device for generating a rotary movement for lifting valves of power and work machines, in particular internal combustion engines | |
| DE2610489A1 (en) | DEVICE FOR CONVERTING AN AXIAL MOVEMENT INTO A ROTATING MOVEMENT | |
| EP3749883B1 (en) | Spring for a check valve, check valve having a spring of this kind, controllable vibration damper having such a check valve, and motor vehicle having a controllable vibration damper of this kind | |
| DE1809460C3 (en) | Door stops, in particular for motor vehicle doors | |
| DE3149815A1 (en) | DEVICE FOR TURNING A VALVE FOR INTERNAL COMBUSTION ENGINES | |
| DE2208466A1 (en) | DEVICE FOR ROTATING A CONTROL VALVE | |
| DE2630296A1 (en) | IC engine valve rotating mechanism with rolling ball - has disc with spring loaded balls on sloping tracks around valve stem | |
| EP1705344B1 (en) | Valve rotating apparatus | |
| DE19750806A1 (en) | Hydraulic play equalizing device for valve control of internal combustion engine | |
| DE3305421A1 (en) | Device for rotating internal combustion engine valves | |
| DE2163787A1 (en) | DEVICE FOR ROTATING A CONTROL VALVE | |
| DE2110708C3 (en) | Device for rotating a poppet valve for internal combustion engines |
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 |
|
| 17P | Request for examination filed |
Effective date: 19980114 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FI FR GB SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;SI |
|
| AKX | Designation fees paid |
Free format text: DE FI FR GB SE |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FI FR GB SE |
|
| 17Q | First examination report despatched |
Effective date: 20000420 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Designated state(s): DE FI FR GB SE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 59710043 Country of ref document: DE Date of ref document: 20030612 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| 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: 20040210 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050302 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20070202 Year of fee payment: 11 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20070307 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20070312 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20070330 Year of fee payment: 11 |
|
| EUG | Se: european patent has lapsed | ||
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20071130 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20060303 Year of fee payment: 10 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070402 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080306 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20080306 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080306 |