EP0547306B1 - Cover for internal combustion engines - Google Patents

Cover for internal combustion engines Download PDF

Info

Publication number
EP0547306B1
EP0547306B1 EP92116594A EP92116594A EP0547306B1 EP 0547306 B1 EP0547306 B1 EP 0547306B1 EP 92116594 A EP92116594 A EP 92116594A EP 92116594 A EP92116594 A EP 92116594A EP 0547306 B1 EP0547306 B1 EP 0547306B1
Authority
EP
European Patent Office
Prior art keywords
cover
sleeve
cover according
sleeves
openings
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
Application number
EP92116594A
Other languages
German (de)
French (fr)
Other versions
EP0547306A1 (en
Inventor
Werner Dipl.-Ing. Quentin
Bernd Dipl.-Ing. Stephan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CR Elastomere GmbH
Original Assignee
CR Elastomere GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE4221760A external-priority patent/DE4221760C2/en
Application filed by CR Elastomere GmbH filed Critical CR Elastomere GmbH
Publication of EP0547306A1 publication Critical patent/EP0547306A1/en
Application granted granted Critical
Publication of EP0547306B1 publication Critical patent/EP0547306B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0054—Fastening to the cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0062—Gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/02—Rubber
    • 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
    • Y10T29/49231—I.C. [internal combustion] engine making
    • 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
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49796—Coacting pieces
    • 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
    • Y10T29/49799—Providing transitory integral holding or handling portion

Definitions

  • the invention relates to a cover, in particular for internal combustion engines, with a flange surface and openings for carrying fastening screws, wherein structure-borne sound-insulating elastomer bodies are provided in the openings.
  • Such a cover is known from DE-A-3 639 218.
  • DE-OS 27 23 459 discloses an internal combustion engine with an oil pan connected to the crankcase to isolate structure-borne noise.
  • the fastening screws of the oil pan are embedded in an elastomer body, which extends with guide rings into the opening for the fastening screws.
  • fixed stops are provided on the oil pan and on the housing of the internal combustion engine.
  • elastomer bodies are pressed into the openings for the fastening screws for structure-borne sound insulation.
  • the elastomer bodies are manufactured separately and pressed into the openings in an additional operation.
  • the thread-free section of the fastening screw serves as a travel limiter for adjusting the pretensioning force of the seal.
  • the invention has for its object a to improve the generic lid with regard to automated assembly in such a way that a simpler and therefore less expensive assembly is possible, while at the same time a good recyclability of the lid is sought.
  • cylindrical sleeves are provided for receiving the fastening screws, which are positively connected to the cover via a formable rubber body. This creates a path limitation for the fastening screws, which do not exert any axial pressure on the structure-borne sound-insulating elements, so that the rubber preload is not changed when the fastening screws are tightened.
  • the sleeves are non-positively connected to the cover via a separation point before the rubber bodies are molded on.
  • the sleeves can be introduced into a mold at the same time as the cover.
  • the separation point is released and the rubber body can be injected.
  • the cover it is particularly cost-effective to design the cover so that the cover and sleeves are formed as a one-piece component before the rubber body is molded on are, and that a predetermined breaking point is provided between the cover and the sleeve.
  • a predetermined breaking point is provided between the cover and the sleeve.
  • the connecting web is designed as a closed ring web and is also arranged at the end region of the opening in the region of the flange surface, it forms after separation of the sleeve and Cover the broken off rest of the ring land an undercut, with the advantage that the injected rubber body can be arranged at the opening without the addition of adhesion promoters.
  • the positive connection created in this way can be separated again in a simple manner. The lid thus meets the requirement of good recyclability.
  • the sleeve is provided with a fuse that allows the screw to be captively connected to the cover.
  • a constriction is provided at the end region facing the screw head, so that the screw can be screwed into the sleeve, and thus all individual parts of the cover can be assembled as a component together with only one handling machine.
  • the inner peripheral surface of the opening and the outer peripheral surface of the sleeve are conical.
  • the cover (1) shown in FIG. 1 is made of aluminum and serves to cover the valve chamber (2) of the engine block (3) of an internal combustion engine.
  • the cover has a flange surface (4) for receiving a static seal (5) made of elastomeric material.
  • the cover is firmly connected to the engine block (3) by means of a plurality of fastening screws (6) arranged in the cover base, which are connected to the cover via sleeves (7) and structure-borne sound-insulating rubber bodies (8).
  • the rubber body (8) is positively connected to the sleeve, that is, the rubber body can be easily removed from the cover (1).
  • FIG 2 an aluminum blank of the cover (1) is shown.
  • the sleeve (7) is designed as part of the cover, that is, the sleeve was molded into the mold during the casting process of the cover.
  • the connection between cover (1) and sleeve (7) takes place via a thin, circumferential, closed ring web (9), which acts as a predetermined breaking point is trained.
  • the sleeve (7) is initially axially offset within the opening (10).
  • the end region (11) of the sleeve has been constricted.
  • the sleeve (7) is pressed axially into the opening (10). This process can take place in the vulcanizing tool during the closing process.
  • FIGS. 3 to 5 This process is illustrated in FIGS. 3 to 5 using a modified cover.
  • the cover (1 ') shown in FIG. 3 can also be provided as a cover for the valve chamber of an internal combustion engine.
  • the openings (10) for the fastening screws are only moved from the lid base to the lid edge.
  • the cover (1 ') initially lies with the sleeve (7') projecting axially from the opening (10) on the lower half (12) of the molding tool (FIG. 4).
  • the predetermined breaking point in the ring web (9) is released by axially pressing the cover (1 ') by means of the upper half (13) of the molding tool, and the sleeve (7') is inserted into the opening (10) relative to the cover (1 '). pressed.
  • FIG. 6 shows an assembled cover (1 '), all add-on parts, such as screw (6), sleeve (7'), rubber body (8) and the static seal (5) form an assembly which, when the cover (1 ') remain connected to each other by the engine block (3').
  • FIG. 7 shows a cover (1 '') with a modified opening (10 '). Axially above the predetermined breaking point, the opening (10 '') has a conical inner circumferential surface (14). The sleeve (7 '') is also conical (15) axially below the predetermined breaking point.

Abstract

The invention relates to a cover for internal combustion engines with a fixing of the attached parts, such as oil sumps or valve covers, in a manner isolated from structure-borne noise. The cover (1,1',1'') has structure-borne noise-insulated sleeves (7, 7',7''), which before forming on of the rubber element (8) are connected to the cover (1,1',1'') by way of a predetermined breaking point (9). <IMAGE>

Description

Die Erfindung betrifft einen Deckel, insbesondere für Brennkraftmaschinen, mit einer Flanschfläche und Öffnungen zur Durchführung von Befestigungsschrauben, wobei in den Öffnungen körperschallisolierende Elastomerkörper vorgesehen sind.The invention relates to a cover, in particular for internal combustion engines, with a flange surface and openings for carrying fastening screws, wherein structure-borne sound-insulating elastomer bodies are provided in the openings.

Ein derartiger Deckel ist aus DE-A-3 639 218 bekannt.Such a cover is known from DE-A-3 639 218.

Bei Brennkraftmaschinen entstehen aufgrund des komplexen Aufbaues und der Arbeitsweise Geräusche, die unter anderem von den mit dem Motor verbundenen Teilen hervorgerufen werden, die eine kraftführenden Anbauteile sind, wie zum Beispiel Ventildeckel oder Ölwannen. Bei dem Bemühen, die Geräusche zu senken, hat sich eine körperschallisolierte Befestigung der Anbauteile als wirksame Maßnahme erwiesen.In the case of internal combustion engines, noises are produced due to the complex structure and mode of operation, which are caused, among other things, by the parts connected to the engine, which are power-carrying add-on parts, such as valve covers or oil pans. In an effort to reduce noise, a structure-borne soundproof attachment of the attachments has proven to be an effective measure.

Die DE - OS 27 23 459 offenbart eine Brennkraftmaschine mit am Kurbelgehäuse körperschallisolierend angeschlossener Ölwanne. Die Befestigungsschrauben der Ölwanne sind in einen Elastomerkörper eingebettet, welcher sich mit Führungsringen bis in die Öffnung für die Befestigungsschrauben erstreckt. Um die Elastomerkörper vor Überbeanspruchungen zu schützen, sind feste Anschläge an der Ölwanne und am Gehäuse der Brennkraftmaschine vorgesehen.DE-OS 27 23 459 discloses an internal combustion engine with an oil pan connected to the crankcase to isolate structure-borne noise. The fastening screws of the oil pan are embedded in an elastomer body, which extends with guide rings into the opening for the fastening screws. In order to protect the elastomer bodies from excessive stress, fixed stops are provided on the oil pan and on the housing of the internal combustion engine.

Ein Nachteil dieser Konstruktion ist darin zu sehen, daß beim Aufbau der Ölwanne die Vorspannkraft der Dichtung und der körperschallisolierenden Elastomerkörper über die Befestigungsschraube eingestellt wird, indem die Schraube bis zum Gewindeauslauf in das Gehäuse eingeschraubt wird. Da die Steifigkeit der einzelnen Elastomerkörper unterschiedlich sein kann, insbesondere bei einer Vielzahl von über den Umfang verteilt angeordneten Elastomerkörpern, die Schraube aber immer die gleiche Einschraublänge aufweist, ist eine optimale Einstellung nicht möglich. Darüber hinaus müssen die einzelnen Elastomerkörper als separates Bauteil in einer Vulkanisierform hergestellt und auch einzeln montiert werden. Überdies können bei vertikalen Schwingungen die Anschläge gegeneinanderstoßen, wodurch eine Körperschallübertragung möglich ist.A disadvantage of this construction can be seen in the fact that when the oil pan is built up, the prestressing force of the seal and the structure-borne noise-isolating elastomer body is adjusted by means of the fastening screw by screwing the screw into the housing up to the thread outlet. Since the stiffness of the individual elastomer bodies can be different, in particular in the case of a large number of elastomer bodies distributed over the circumference, but the screw always has the same screw-in length, an optimal setting is not possible. In addition, the individual elastomer bodies must be manufactured as a separate component in a vulcanizing mold and also assembled individually. In addition, the stops can collide against each other in the event of vertical vibrations, which enables structure-borne noise to be transmitted.

Bei einem Deckel für den Zylinderkopf einer Brennkraftmaschine gemäß DE - PS 36 39 218 werden zur Körperschallisolierung Elastomerkörper in die Öffnungen für die Befestigungsschrauben eingepreßt. Auch bei dieser Konstruktion werden die Elastomerkörper separat hergestellt und in einem zusätzlichen Arbeitsgang in die Öffnungen gepreßt. Als Wegbegrenzer zur Einstellung der Vorspannkraft der Dichtung dient der gewindefreie Abschnitt der Befestigungsschraube.In the case of a cover for the cylinder head of an internal combustion engine according to DE-PS 36 39 218, elastomer bodies are pressed into the openings for the fastening screws for structure-borne sound insulation. In this construction too, the elastomer bodies are manufactured separately and pressed into the openings in an additional operation. The thread-free section of the fastening screw serves as a travel limiter for adjusting the pretensioning force of the seal.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Deckel im Hinblick auf eine automatisierte Montage dahingehend zu verbessern, daß eine einfachere und damit konstengünstigere Montage möglich ist, wobei gleichzeitig eine gute Recyclingfähigkeit des Deckels angestrebt wird.The invention has for its object a to improve the generic lid with regard to automated assembly in such a way that a simpler and therefore less expensive assembly is possible, while at the same time a good recyclability of the lid is sought.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zur Aufnahme der Befestigungsschrauben zylindrische Hülsen vorgesehen sind, die über einen anformbaren Gummikörper formschlüssig mit dem Deckel verbunden sind. Hierdurch wird eine Wegbegrenzung für die Befestigungsschrauben geschaffen, welche keinen axialen Druck auf die körperschallisolierenden Elemente ausüben, so daß beim Festziehen der Befestigungsschrauben die Gummivorspannung nicht verändert wird.This object is achieved in that cylindrical sleeves are provided for receiving the fastening screws, which are positively connected to the cover via a formable rubber body. This creates a path limitation for the fastening screws, which do not exert any axial pressure on the structure-borne sound-insulating elements, so that the rubber preload is not changed when the fastening screws are tightened.

Einem weiteren Gedanken der Erfindung gemäß, sind die Hülsen vor dem Anformen der Gummikörper über eine Trennstelle kraftschlüssig mit dem Deckel verbunden. Die Hülsen können auf diese Weise gleichzeitig mit dem Deckel in ein Formwerkzeug eingebracht werden. Zum Anformen des Gummikörpers wird die Trennstelle gelöst, und der Gummikörper kann eingespritzt werden.According to a further idea of the invention, the sleeves are non-positively connected to the cover via a separation point before the rubber bodies are molded on. In this way, the sleeves can be introduced into a mold at the same time as the cover. To form the rubber body, the separation point is released and the rubber body can be injected.

Besonders kostengünstig ist es einem weiteren Erfindungsgedanken gemäß, die Konstruktion des Deckels so zu gestalten, daß vor dem Anformen der Gummikörper Deckel und Hülsen als einteiliges Bauteil ausgebildet sind, und daß eine Sollbruchstelle zwischen Deckel und Hülse vorgesehen ist. Hierdurch besteht die Möglichkeit, beispielsweise bei einem Deckel aus Leichtmetall die Hülse zusammen mit dem Deckel in einer Gießform herzustellen. Die auf diese Weise unverlierbar mit dem Deckel verbundene Hülse braucht dann nicht mehr separat hergestellt zu werden. Eine besonders günstige Sollbruchstelle ergibt sich, wenn die Sollbruchstelle in einem Verbindungssteg zwischen der Außenumfangsfläche der Hülse und der Innenumfangsflache der Öffnung angeordnet ist.According to a further inventive idea, it is particularly cost-effective to design the cover so that the cover and sleeves are formed as a one-piece component before the rubber body is molded on are, and that a predetermined breaking point is provided between the cover and the sleeve. This makes it possible, for example in the case of a light metal cover, to produce the sleeve together with the cover in a casting mold. The sleeve captively connected to the cover in this way then no longer needs to be manufactured separately. A particularly favorable predetermined breaking point results if the predetermined breaking point is arranged in a connecting web between the outer peripheral surface of the sleeve and the inner peripheral surface of the opening.

Es besteht nunmehr die Möglichkeit, durch axiales Verschieben der Hülse die feste Verbindung zu lösen. Hierzu ist es von Vorteil, wenn die Hülse, axial in Richtung der Flanschfläche versetzt, mit dem Deckel verbunden ist. Bei Deckeln, welche eine anvulkanisierte statische Dichtung aufweisen, besteht die Möglichkeit, beim Einlegen des Deckels in die Vulkanisierform die Hülse mit dem Vulkanisierwerkzeug über eine Sollbruchstelle vom Deckel zu lösen, indem die Hülse mit Hilfe des Formwerkzeuges axial in die Öffnung gepreßt wird. Mit dem Einspritzen des Werkstoffes für die statische Dichtung können auch im gleichen Arbeitsgang die Gummikörper mit angeformt werden. Ist der Verbindungssteg als geschlossener Ringsteg ausgebildet und ist er darüber hinaus am Endbereich der Öffnung im Bereich der Flanschfläche angeordnet, so bildet nach Trennung von Hülse und Deckel der abgebrochene Rest des Ringsteges eine Hinterschneidung, mit dem Vorteil, daß der eingespritzte Gummikörper ohne Zusatz von Haftvermittlern an der Öffnung angeordnet werden kann. Die so geschaffene formschlüssige Verbindung läßt sich auf einfache Weise wieder trennen. Damit wird der Deckel dem Anspruch guter Recyclebarkeit gerecht.It is now possible to release the fixed connection by axially moving the sleeve. For this purpose, it is advantageous if the sleeve, axially offset in the direction of the flange surface, is connected to the cover. In the case of lids which have a vulcanized-in static seal, there is the possibility, when inserting the lid into the vulcanizing mold, to detach the sleeve with the vulcanizing tool via a predetermined breaking point by pressing the sleeve axially into the opening with the aid of the molding tool. With the injection of the material for the static seal, the rubber body can also be molded in the same operation. If the connecting web is designed as a closed ring web and is also arranged at the end region of the opening in the region of the flange surface, it forms after separation of the sleeve and Cover the broken off rest of the ring land an undercut, with the advantage that the injected rubber body can be arranged at the opening without the addition of adhesion promoters. The positive connection created in this way can be separated again in a simple manner. The lid thus meets the requirement of good recyclability.

Darüber hinaus ist die Hülse mit einer Sicherung versehen, die es erlaubt, die Schraube mit dem Deckel unverlierbar zu verbinden. Am zum Schraubenkopf weisenden Endbereich ist eine Einschnürung vorgesehen, so daß die Schraube in die Hülse einschraubbar ist, und damit können sämtliche Einzelteile des Deckels als ein Bauteil gemeinsam mit nur einem Handhabungsautomaten montiert werden.In addition, the sleeve is provided with a fuse that allows the screw to be captively connected to the cover. A constriction is provided at the end region facing the screw head, so that the screw can be screwed into the sleeve, and thus all individual parts of the cover can be assembled as a component together with only one handling machine.

Zur Verbesserung der Dämpfeigenschaften ist die Innenumfangsfläche der Öffnung und die Außenumfangsflache der Hülse konisch ausgebildet.In order to improve the vapor properties, the inner peripheral surface of the opening and the outer peripheral surface of the sleeve are conical.

Die Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

  • Figur 1 Ansicht eines erfindungsgemäßen Deckels im Querschnitt im eingebauten Zustand
  • Figur 2 Teilansicht eines Deckels gemäß Figur 1 als Rohling
  • Figur 3 Rohling eines alternativen Deckels im Halbschnitt
  • Figur 4 Deckel gemäß Figur 3 im Formwerkzeug
  • Figur 5 Deckel gemäß Figur 4 nach dem Anformen des Gummikörpers
  • Figur 6 Deckel gemäß Figur 5 im eingebauten Zustand
  • Figur 7 Alternative gemäß Figur 3
  • Figur 8 Alternative gemäß Figur 6
The invention is illustrated in the drawing and is described in more detail below. Show it:
  • Figure 1 View of a cover according to the invention in cross section in the installed state
  • Figure 2 partial view of a lid according to Figure 1 as a blank
  • Figure 3 blank of an alternative cover in Half cut
  • Figure 4 lid according to Figure 3 in the mold
  • Figure 5 lid according to Figure 4 after the molding of the rubber body
  • Figure 6 cover according to Figure 5 in the installed state
  • FIG. 7 alternative according to FIG. 3
  • FIG. 8 alternative according to FIG. 6

Der in der Figur 1 dargestellte Deckel (1) besteht aus Aluminium und dient zur Abdeckung des Ventilraumes (2) des Motorblockes (3) einer Brennkraftmaschine. Der Deckel weist eine Flanschfläche (4) zur Aufnahme einer statischen Dichtung (5) aus elastomerem Werkstoff auf. Mittels mehrerer im Deckelboden angeordneter Befestigungsschrauben (6), die über Hülsen (7) und körperschallisolierende Gummikörper (8) mit dem Deckel verbunden sind, ist der Deckel fest mit dem Motorblock (3) verbunden. Der Gummikörper (8) ist formschlüssig mit der Hülse verbunden, das heißt der Gummikörper kann leicht aus dem Deckel (1) entfernt werden.The cover (1) shown in FIG. 1 is made of aluminum and serves to cover the valve chamber (2) of the engine block (3) of an internal combustion engine. The cover has a flange surface (4) for receiving a static seal (5) made of elastomeric material. The cover is firmly connected to the engine block (3) by means of a plurality of fastening screws (6) arranged in the cover base, which are connected to the cover via sleeves (7) and structure-borne sound-insulating rubber bodies (8). The rubber body (8) is positively connected to the sleeve, that is, the rubber body can be easily removed from the cover (1).

In der Figur 2 ist ein Aluminiumrohling des Deckels (1) dargestellt. Die Hülse (7) ist als Teil des Deckels ausgebildet, das heißt die Hülse wurde beim Gießvorgang des Deckels in der Gießform angeformt. Die Verbindung zwischen Deckel (1) und Hülse (7) erfolgt über einen dünnen, umlaufenden, geschlossenen Ringsteg (9), der als Sollbruchstelle ausgebildet ist. In der Rohlingsform liegt die Hülse (7) zunächst axial versetzt innderhalb der Öffnung (10). Damit die Befestigungsschraube unverlierbar mit der Hülse verbindbar ist, wurde der Endbereich (11) der Hülse eingeschnürt. Zum Einbringen des Gummikörpers (8) wird die Hülse (7) axial in die Öffnung (10) gedrückt. Dieser Prozeß kann im Vulkanisierwerkzeug während des Schließvorganges erfolgen.In Figure 2, an aluminum blank of the cover (1) is shown. The sleeve (7) is designed as part of the cover, that is, the sleeve was molded into the mold during the casting process of the cover. The connection between cover (1) and sleeve (7) takes place via a thin, circumferential, closed ring web (9), which acts as a predetermined breaking point is trained. In the blank form, the sleeve (7) is initially axially offset within the opening (10). In order that the fastening screw can be captively connected to the sleeve, the end region (11) of the sleeve has been constricted. To insert the rubber body (8), the sleeve (7) is pressed axially into the opening (10). This process can take place in the vulcanizing tool during the closing process.

In den Figuren 3 bis 5 ist dieser Vorgang anhand eines modifizierten Deckels dargestellt. Der in der Figur 3 dargestellte Deckel (1') kann ebenfalls als Abdeckung für den Ventilraum einer Brennkraftmaschine vorgesehen sein. Die Öffnungen (10) für die Befestigungsschrauben sind lediglich vom Deckelboden in den Deckelrand verlegt.This process is illustrated in FIGS. 3 to 5 using a modified cover. The cover (1 ') shown in FIG. 3 can also be provided as a cover for the valve chamber of an internal combustion engine. The openings (10) for the fastening screws are only moved from the lid base to the lid edge.

Der Deckel (1') liegt zunächst mit der axial aus der Öffnung (10) herausragenden Hülse (7') auf der unteren Hälfte (12) des Formwerkzeuges auf (Figur 4). Durch axiales Drücken auf den Deckel (1') mittels der oberen Hälfte (13) des Formwerkzeuges wird die Sollbruchstelle im Ringsteg (9) gelöst, und die Hülse (7') wird relativ zum Deckel (1') in die Öffnung (10) gedrückt.The cover (1 ') initially lies with the sleeve (7') projecting axially from the opening (10) on the lower half (12) of the molding tool (FIG. 4). The predetermined breaking point in the ring web (9) is released by axially pressing the cover (1 ') by means of the upper half (13) of the molding tool, and the sleeve (7') is inserted into the opening (10) relative to the cover (1 '). pressed.

Aufgrund der durch die Sollbruchstelle gebildeten Stümpfe des Ringsteges (9) wird zwischen der Außenumfangsfläche der Hülse (7') und der Innenumfangsfläche der Öffnung (10) ein Ringspalt erzeugt, der aufgrund seiner geometrischen Form geeignet ist, den Gummikörper (8) formschlüssig mit dem Deckel (1') zu verbinden. Beim Anformen der Dichtung (5) kann in einem Arbeitsgang der Gummikörper (8) mit angeformt werden (Figur 5).Due to the stumps formed by the predetermined breaking point of the ring web (9) between the The outer circumferential surface of the sleeve (7 ') and the inner circumferential surface of the opening (10) produce an annular gap which, due to its geometric shape, is suitable for positively connecting the rubber body (8) to the cover (1'). When molding the seal (5), the rubber body (8) can be molded on in one operation (FIG. 5).

Auf diese Weise ist es möglich, zur Montage des Deckels alle notwendigen Bauteile unverlierbar miteinander zu verbinden.In this way, it is possible to captively connect all the necessary components for the assembly of the cover.

Die Figur 6 zeigt einen montierten Deckel (1'), sämtliche Anbauteile, wie Schraube (6), Hülse (7'), Gummikörper (8) als auch die statische Dichtung (5) bilden eine Baugruppe, die beim Lösen des Deckels (1') vom Motorblock (3') miteinander verbunden bleiben.FIG. 6 shows an assembled cover (1 '), all add-on parts, such as screw (6), sleeve (7'), rubber body (8) and the static seal (5) form an assembly which, when the cover (1 ') remain connected to each other by the engine block (3').

Die Figur 7 zeigt einen Deckel (1'') mit modifizierter Öffnung (10'). Axial oberhalb der Sollbruchstelle weist die Öffnung (10'') eine konisch verlaufende Innenumfangsfläche (14) auf. Die Hülse (7'') ist axial unterhalb der Sollbruchstelle ebenfalls konisch (15) ausgebildet.FIG. 7 shows a cover (1 '') with a modified opening (10 '). Axially above the predetermined breaking point, the opening (10 '') has a conical inner circumferential surface (14). The sleeve (7 '') is also conical (15) axially below the predetermined breaking point.

Diese Maßnahme führt dazu, daß im eingebauten Zustand gemäß Figur 8 der Gummikörper (8) im Bereich (16) zwischen den beiden konischen Umfangsflächen (14,15) bei axialer Relativbewegung zwischen Hülse (7'') und Deckel (1'') progressiv verformt wird. Hierdurch ist die Federcharakteristik veranderbar und damit optimal auf die erforderlichen Bedürfnisse einstellbar. Je nach Anwendungsfall läßt sich eine harte oder weiche Dämpfung einstellen, indem die konischen Flächen (14,15) entweder steiler oder flacher verlaufen.This measure leads to the fact that in the installed state according to FIG. 8, the rubber body (8) in the area (16) between the two conical peripheral surfaces (14, 15) with axial relative movement between the sleeve (7 '') and Cover (1 '') is progressively deformed. As a result, the spring characteristic can be changed and can therefore be optimally adjusted to the required requirements. Depending on the application, hard or soft damping can be set by making the conical surfaces (14, 15) either steeper or flatter.

Claims (12)

  1. Cover (1, 1', 1''), in particular for internal combustion engines, with a flange facing (4) and openings (10, 10'') for the passage of fastening screws (6), wherein elastomer bodies insulating against structure-borne noise are provided in the openings (10, 10''), characterised in that cylindrical sleeves (7, 7', 7'') are provided to receive the fastening screws (6), said sleeves being connected positively to the cover (1, 1', 1'') via a rubber body (8), which may be moulded on.
  2. Cover according to Claim 1, characterised in that the sleeves (7, 7', 7'') are connected non-positively to the cover (1, 1', 1'') via a separation point prior to the rubber bodies (8) being moulded on.
  3. Cover according to Claims 1 and 2, characterised in that prior to the rubber bodies (8) being moulded on, the cover (1, 1', 1'') and sleeves (7, 7', 7'') are constructed as an integral structural part, and that a predetermined breaking point is provided between the cover (1, 1', 1'') and the sleeve (7, 7', 7'').
  4. Cover according to Claim 3, characterised in that the predetermined breaking point is disposed in a connecting web between the outer peripheral surface of the sleeve (7, 7', 7'') and the inner peripheral surface of the openings (10, 10'').
  5. Cover according to at least one of Claims 3 to 4, characterised in that the sleeve (7, 7', 7'') may be displaced axially in the opening (10, 10'') for separation of the predetermined breaking point.
  6. Cover according to Claims 1 to 5, characterised in that the sleeve (7, 7', 7''), which is offset axially in the direction of the flange facing (4), is connected to the cover (1, 1', 1'').
  7. Cover according to Claim 4, characterised in that the connecting web is a closed annular web (9).
  8. Cover according to Claim 7, characterised in that the annular web (9) is arranged on the end region of the opening (10, 10'') in the area of the flange facing (4).
  9. Cover according to Claims 1 to 8, characterised in that the sleeve (7, 7', 7'') is provided with a protective means (11) so that the fastening screws (6) may be connected undetachably to the sleeve (7, 7', 7'').
  10. Cover according to Claim 9, characterised in that the protective means (11) is provided as a narrowed area and is arranged at the end region pointing to the head of the screw (6).
  11. Cover according to at least one of Claims 4 to 10, characterised in that the openings (10'') have a conically extending inner peripheral surface (14).
  12. Cover according to Claims 1 to 11, characterised in that the sleeve (7'') has a conically extending outer peripheral surface (15).
EP92116594A 1991-12-17 1992-09-29 Cover for internal combustion engines Expired - Lifetime EP0547306B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4141576 1991-12-17
DE4141576 1991-12-17
DE4221760 1992-07-02
DE4221760A DE4221760C2 (en) 1991-12-17 1992-07-02 Structure-borne noise-insulated cover, in particular for internal combustion engines

Publications (2)

Publication Number Publication Date
EP0547306A1 EP0547306A1 (en) 1993-06-23
EP0547306B1 true EP0547306B1 (en) 1995-09-20

Family

ID=25910171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116594A Expired - Lifetime EP0547306B1 (en) 1991-12-17 1992-09-29 Cover for internal combustion engines

Country Status (5)

Country Link
US (1) US5368797A (en)
EP (1) EP0547306B1 (en)
JP (1) JPH05248594A (en)
AT (1) ATE128207T1 (en)
ES (1) ES2077318T3 (en)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401486C2 (en) * 1994-01-21 1997-09-04 Cr Elastomere Gmbh Housing cover
US5511518A (en) * 1994-11-02 1996-04-30 Fel-Pro Incorporated Sealing assembly with undercut groove
US6096256A (en) * 1998-05-04 2000-08-01 Buffalo Molded Plastics, Inc. Method of making inserts for molded plastic parts
JP2000039069A (en) * 1998-07-24 2000-02-08 Nok Corp Manufacture of sealing device
DE10119892C2 (en) * 2001-04-24 2003-04-03 Skf Ab Cover, in particular for damping the noise of an internal combustion engine
DE10137302A1 (en) * 2001-08-01 2003-02-13 Basf Ag round bearings
DE60300523T2 (en) * 2002-06-18 2006-02-23 Brp-Rotax Gmbh & Co. Kg Vibration and noise damping connection mechanism for attaching two mechanical components
DE102004010617B4 (en) * 2004-03-02 2008-04-24 Aktiebolaget Skf Connection between an elastomeric part and a component and method for establishing the connection
DE202005010449U1 (en) * 2005-06-30 2006-11-09 Mann + Hummel Gmbh Cylinder head cover for a cylinder head of an internal combustion engine
US8018588B2 (en) * 2007-06-06 2011-09-13 Aptuit, Inc. Sample holder and sample preparation device
US8794203B2 (en) * 2008-11-05 2014-08-05 Ford Global Technologies, Llc Valve cover with decoupled NVH isolation and sealing features
US9812684B2 (en) 2010-11-09 2017-11-07 GM Global Technology Operations LLC Using elastic averaging for alignment of battery stack, fuel cell stack, or other vehicle assembly
US9618026B2 (en) 2012-08-06 2017-04-11 GM Global Technology Operations LLC Semi-circular alignment features of an elastic averaging alignment system
US20140042704A1 (en) * 2012-08-09 2014-02-13 GM Global Technology Operations LLC Seal aligning and retaining assembly and method of retaining a seal
US9463538B2 (en) 2012-08-13 2016-10-11 GM Global Technology Operations LLC Alignment system and method thereof
US9556890B2 (en) 2013-01-31 2017-01-31 GM Global Technology Operations LLC Elastic alignment assembly for aligning mated components and method of reducing positional variation
US9278642B2 (en) 2013-04-04 2016-03-08 GM Global Technology Operations LLC Elastically deformable flange locator arrangement and method of reducing positional variation
US9382935B2 (en) 2013-04-04 2016-07-05 GM Global Technology Operations LLC Elastic tubular attachment assembly for mating components and method of mating components
US9388838B2 (en) 2013-04-04 2016-07-12 GM Global Technology Operations LLC Elastic retaining assembly for matable components and method of assembling
US9297400B2 (en) 2013-04-08 2016-03-29 GM Global Technology Operations LLC Elastic mating assembly and method of elastically assembling matable components
US9447840B2 (en) 2013-06-11 2016-09-20 GM Global Technology Operations LLC Elastically deformable energy management assembly and method of managing energy absorption
US9243655B2 (en) 2013-06-13 2016-01-26 GM Global Technology Operations LLC Elastic attachment assembly and method of reducing positional variation and increasing stiffness
US9488205B2 (en) 2013-07-12 2016-11-08 GM Global Technology Operations LLC Alignment arrangement for mated components and method
US9303667B2 (en) 2013-07-18 2016-04-05 Gm Global Technology Operations, Llc Lobular elastic tube alignment system for providing precise four-way alignment of components
US9863454B2 (en) 2013-08-07 2018-01-09 GM Global Technology Operations LLC Alignment system for providing precise alignment and retention of components of a sealable compartment
US9458876B2 (en) 2013-08-28 2016-10-04 GM Global Technology Operations LLC Elastically deformable alignment fastener and system
US9463831B2 (en) 2013-09-09 2016-10-11 GM Global Technology Operations LLC Elastic tube alignment and fastening system for providing precise alignment and fastening of components
US9457845B2 (en) 2013-10-02 2016-10-04 GM Global Technology Operations LLC Lobular elastic tube alignment and retention system for providing precise alignment of components
US9511802B2 (en) 2013-10-03 2016-12-06 GM Global Technology Operations LLC Elastically averaged alignment systems and methods
US9669774B2 (en) 2013-10-11 2017-06-06 GM Global Technology Operations LLC Reconfigurable vehicle interior assembly
US9481317B2 (en) 2013-11-15 2016-11-01 GM Global Technology Operations LLC Elastically deformable clip and method
US9447806B2 (en) 2013-12-12 2016-09-20 GM Global Technology Operations LLC Self-retaining alignment system for providing precise alignment and retention of components
US9428123B2 (en) 2013-12-12 2016-08-30 GM Global Technology Operations LLC Alignment and retention system for a flexible assembly
US9216704B2 (en) 2013-12-17 2015-12-22 GM Global Technology Operations LLC Elastically averaged strap systems and methods
US9446722B2 (en) 2013-12-19 2016-09-20 GM Global Technology Operations LLC Elastic averaging alignment member
US9599279B2 (en) 2013-12-19 2017-03-21 GM Global Technology Operations LLC Elastically deformable module installation assembly
US9238488B2 (en) 2013-12-20 2016-01-19 GM Global Technology Operations LLC Elastically averaged alignment systems and methods
US9541113B2 (en) 2014-01-09 2017-01-10 GM Global Technology Operations LLC Elastically averaged alignment systems and methods
US9463829B2 (en) 2014-02-20 2016-10-11 GM Global Technology Operations LLC Elastically averaged alignment systems and methods
US9428046B2 (en) 2014-04-02 2016-08-30 GM Global Technology Operations LLC Alignment and retention system for laterally slideably engageable mating components
US9657807B2 (en) 2014-04-23 2017-05-23 GM Global Technology Operations LLC System for elastically averaging assembly of components
US9429176B2 (en) 2014-06-30 2016-08-30 GM Global Technology Operations LLC Elastically averaged alignment systems and methods
US9758110B2 (en) 2015-01-12 2017-09-12 GM Global Technology Operations LLC Coupling system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372711A (en) * 1931-01-28 1932-05-12 Maschb Ag Improvements in or relating to ingot or billet breaking devices
US2323216A (en) * 1941-02-26 1943-06-29 Metalastik Ltd Method of making resilient couplings
US2828095A (en) * 1954-09-27 1958-03-25 Lord Mfg Co Mounting with extended skirt for snubbing
GB1263077A (en) * 1968-04-26 1972-02-09 John Vickers And Sons Ltd Improvements in machinery covers
CH615981A5 (en) * 1976-07-08 1980-02-29 Saurer Ag Adolph Internal combustion engine with oil sump connected to the crank case so as to isolate structure-borne noise
DE2638982A1 (en) * 1976-08-28 1978-03-02 Bayerische Motoren Werke Ag Cover for IC engine valve gear or sump - has flange with resilient seal which is compressed by cover fixing screws against vibration
JPS5936680Y2 (en) * 1977-08-04 1984-10-09 トヨタ自動車株式会社 Internal combustion engine cylinder head cover mounting device
ATA574080A (en) * 1980-11-24 1984-06-15 List Hans BODY SOUND INSULATING ELEMENT
US4394853A (en) * 1981-06-22 1983-07-26 General Motors Corporation Engine oil pan isolation mounting
JPS5851249A (en) * 1981-09-19 1983-03-25 Honda Motor Co Ltd Internal-combustion engine
DE3512713A1 (en) * 1985-04-09 1986-10-09 Klöckner-Humboldt-Deutz AG, 5000 Köln Cylinder head cover of a plastic material
US4667628A (en) * 1986-03-06 1987-05-26 General Motors Corporation Oil pan isolation mounting and seal
US4719892A (en) * 1986-06-26 1988-01-19 General Motors Corporation Cavity closure with isolator seal and method
DE3639218A1 (en) * 1986-11-15 1988-05-26 Karl Joh Gummiwarenfab VALVE COVER FOR THE COMBUSTION ENGINE CYLINDER HEAD
US4965933A (en) * 1989-05-22 1990-10-30 The Cherry Corporation Process for making insert molded circuit
US5054562A (en) * 1990-05-02 1991-10-08 Honsa Ergonomic Technologies, Inc. Vibration-isolated power tool

Also Published As

Publication number Publication date
ATE128207T1 (en) 1995-10-15
EP0547306A1 (en) 1993-06-23
JPH05248594A (en) 1993-09-24
US5368797A (en) 1994-11-29
ES2077318T3 (en) 1995-11-16

Similar Documents

Publication Publication Date Title
EP0547306B1 (en) Cover for internal combustion engines
DE3823238C2 (en)
EP1995088B1 (en) Insert mount component, elastic insert mount and strut support device
DE112008004188T5 (en) Grommet
WO2008074277A1 (en) Insert for a cylinder sleeve or for a cylinder of an internal combustion engine
DE102009039508B4 (en) Cover-mounting unit
EP1288476B1 (en) Cover with an acoustically isolated abutment
DE102007041949B3 (en) fasteners
DE10141570B4 (en) Housing cover with device for securing the sealing forces
DE4221760C2 (en) Structure-borne noise-insulated cover, in particular for internal combustion engines
DE10334898B4 (en) Retaining element for fixing at least one bearing
DE102006021625B4 (en) Covering device with sealing element for internal combustion engines
EP0632195B1 (en) Sealing of 2 carter parts
DE202008004036U1 (en) Oil pan for an internal combustion engine
DE102008020099B4 (en) By at least one fastening screw to be mounted component
DE10024323A1 (en) Anti-vibration device
DE19651838A1 (en) Plastics mounting part with seal for casing cover of cylinder head in engines
EP3420253B1 (en) Engine component comprising a seal
DE19910308B4 (en) Hydraulically damping rubber bearing with axial stops and a method for producing such a hydraulically damping rubber bearing with integrated axial stops
WO1995020102A1 (en) Process for casting a light metal cover and cast light metal cover
DE4401486C2 (en) Housing cover
DE19936748B4 (en) Mounting system for housing cover on housings of power machines
EP0528104A1 (en) Casing closing cover
DE102004053844B3 (en) Vacuum brake servo for motor vehicles has two-section sealing device with anchoring section fastened to housing and forming guide section for piston skirt and stop face for cross member which limits return stroke of piston
EP1122470A2 (en) cylinder head gasket

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 DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19931126

17Q First examination report despatched

Effective date: 19940727

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GOETZE ELASTOMERE GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CR ELASTOMERE GMBH

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 128207

Country of ref document: AT

Date of ref document: 19951015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59203758

Country of ref document: DE

Date of ref document: 19951026

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950928

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2077318

Country of ref document: ES

Kind code of ref document: T3

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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990902

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000929

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050929

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080926

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080917

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080929

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20081031

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080929

Year of fee payment: 17

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090929

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100531

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: 20090930

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100401

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: 20090929

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: 20090930

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110715

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 NON-PAYMENT OF DUE FEES

Effective date: 20110705

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 NON-PAYMENT OF DUE FEES

Effective date: 20090930