EP0362687B1 - Valve timing setting system for an internal-combustion engine the camshaft of which is driven by a belt, a chain or a gear - Google Patents
Valve timing setting system for an internal-combustion engine the camshaft of which is driven by a belt, a chain or a gear Download PDFInfo
- Publication number
- EP0362687B1 EP0362687B1 EP89117918A EP89117918A EP0362687B1 EP 0362687 B1 EP0362687 B1 EP 0362687B1 EP 89117918 A EP89117918 A EP 89117918A EP 89117918 A EP89117918 A EP 89117918A EP 0362687 B1 EP0362687 B1 EP 0362687B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankshaft
- camshaft
- bore
- crankcase
- pin
- 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
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Classifications
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- 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
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- 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
- F01L1/02—Valve drive
- F01L1/024—Belt drive
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- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
- F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53978—Means to assemble or disassemble including means to relatively position plural work parts
Definitions
- the invention relates to a device for setting the control times on an internal combustion engine according to the preamble of claim 1.
- a device in the form of a control box in which a chain drive is used is known, with the help of which the synchronous position of the camshaft is determined independently of a specific position of the crankshaft.
- the housing box contains the driving and the driven pinion as well as the chain, which engages in the pinion and thus secures the presetting of the control, so that the injection pump shaft and the camshaft are in their desired position relative to the crankshaft be coupled with the respective pinions.
- the sprockets freely arranged in the housing are held in their position by means of ribs which are adapted in the shape of a circular arc to the contour of the sprockets.
- the housing also contains detachable, angular positioning parts, which have protruding cylindrical elevations with ribs, and which interact with the pinions and their respective partial grooves to fix the angular position of the pinions.
- control box The assembly of the above control box is complicated and it has to be opened with every readjustment, incorrect settings of the releasable positioning parts cannot be ruled out, since these can occur when installing and removing the parts, and the exact setting of the driving and driven shafts to each other impaired.
- control box must be resealed after each removal or adjustment.
- JP-A-57-83617 describes a device for adjusting the timing of an internal combustion engine having a crankshaft which is mounted in a crankcase and at least one camshaft which is arranged in the crankcase or in a cylinder head and is driven by the crankshaft, the camshaft and the crankshaft can be fixed in its rotational position, and a fixing pin in the setting position of the camshaft in the area of a camshaft bearing can be inserted into a radial camshaft bore without play but smoothly through a lateral bore in the crankcase or in the cylinder head.
- a disadvantage of this device is that the crankshaft is not sufficiently rotationally fixed.
- the invention is based on the object of proposing a device for setting the control times in an internal combustion engine which is easy to handle and which fulfills the requirement for exact position maintenance of the driving crankshaft and the driven camshaft during the adjustment work.
- the camshaft and the crankshaft are immovably held in a defined position by an adjusting pin.
- the crankshaft is held in place by the adjusting pin and by the stop sleeve screwed into the crankcase.
- an adjusting pin suffices to lock it, which is screwed through the crankcase or through the housing provided specifically for the camshaft and engages in the camshaft within a bore provided for this purpose.
- the tips of the adjusting pins protrude smoothly into the respective bores of the camshaft and crankshaft, but without play, in order to counteract any rotation of the shafts.
- the part of the adjusting pin located within the crankcase is offset in diameter on the camshaft and that of the stop sleeve on the crankshaft.
- the beginning of the stepped part is threaded and screwed into the crankcase.
- the offset end face on both parts lies on the crankcase and holds the respective part against tilting movements.
- the end part of the stop sleeve is also in the installed state on the Crankshaft flattened point and thus forms an additional safeguard against rotation of the crankshaft.
- Fig. 1 "a” shows an axial section on a crankcase 1, in which a crankshaft 7 is embedded.
- a stop surface 23 is provided on the side of a crank web, with a bore 21 which is axially aligned with a threaded bore 24 on the crankcase.
- the setting pin 20 is screwed in through the threaded bore 24 on the crankcase until its stepped surface 25 rests on the crankcase and its tip engages in the bore 21.
- the crankshaft can thus be held in the desired position.
- the outer part of the setting pin is knurled to enable it to be installed and removed.
- Variant "b” differs from variant “a” only in that the bore 22 into which the adjusting pin 20 engages has more play than in the bore 21, which is easier and more economical to manufacture.
- Figure 2 shows in axial section a crankcase part 1 of an internal combustion engine with a camshaft 6 and the crankshaft 7 mounted therein.
- the crankcase has a bore 4 at the level of the camshaft, the initial part 4 'is provided with an internal thread.
- a threaded hole 15 is also provided in the crankcase at the level of the upper part of the crankshaft.
- the camshaft has a bore 5 which is flush with the bore 4 when the camshaft is brought into the position which is decisive for the adjustment of the timing.
- the setting pin 2 is pushed and tightened on the threaded part 4 '.
- the tip of the offset part 3 of the adjusting pin engages in the bore 5 and holds the camshaft 6 in its position immovably.
- the end of the adjusting pin When screwed in, the end of the adjusting pin snaps into the camshaft bore smoothly and without play and locks the camshaft firmly in the position intended for adjustment. Increased security against twisting is achieved by creating the offset Level of the adjusting pin on the crankcase reached.
- the adjustment pin is knurled or has a hexagon head or a slot to facilitate the installation or rotation of this part in the crankcase.
- a threaded hole is provided on the crankcase at the level of the crankshaft upper part, through which a stop sleeve 9 with an outer diameter is screwed.
- the threaded part 11 of the stop sleeve lies at the beginning of the offset piece and is dimensioned such that the stop sleeve bears in the installed state with the offset surface on the outer crankcase wall, while at the same time the end part lies on the flattened area around the threaded bore 14 on the crankshaft 8. This ensures the highest level of security against torsion.
- any macro movement that may occur due to the force of the crankshaft can be eliminated by magnetically activating the tip of the setting pin 13 within the threaded bore 14.
- the adjusting sleeve is also knurled or provided with a hexagon head to facilitate installation.
- the driving crankshaft and the driven camshaft are brought into immovable position by the two adjusting pins and the stop sleeve.
- the power transmission Element, chain or wheel drive, can then be attached to the immovably fixed shafts.
- Block or distributor injection pumps can also be set correctly in the same way with a fixed blocking of the intended setting position.
- the stop pins and the stop sleeve are removed and the openings on the crankcase are closed with a locking screw.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Einstellung der Steuerzeiten an einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for setting the control times on an internal combustion engine according to the preamble of
Bei Brennkraftmaschinen ist das Einhalten der genauen Steuerzeiten der Gaswechselventile sowie die genaue Einstellung der Einspritzpumpe eine wichtige Voraussetzung für die einwandfreie Funktion der Brennkraftmaschine. Schleichende Fehler bei Neumontage oder bei Instandsetzungsarbeiten beeinträchtigen die Motorleistung und können zum Schaden am Triebwerk führen.In the case of internal combustion engines, compliance with the precise control times of the gas exchange valves and the precise setting of the injection pump are an important prerequisite for the proper functioning of the internal combustion engine. Creeping errors during reassembly or repair work adversely affect engine performance and can damage the engine.
Aus der Druckschrift EP-A-01 24 433 ist eine Vorrichtung in Form eines Steuerungskastens, in dem ein Kettentrieb eingesetzt ist, bekannt, mit deren Hilfe unabhängig von einer bestimmten Stellung der Kurbelwelle die damit synchrone Stellung der Nockenwelle festgelegt wird. Der Gehäusekasten beinhaltet in vormontierter Stellung das antreibende und das angetriebene Ritzel sowie die Kette, die in die Ritzel eingreift und damit die Voreinstellung der Steuerung sichert, so daß die Einspritzpumpenwelle und die Nockenwelle in ihrer gewünschten Stellung zur Kurbelwelle mit den jeweiligen Ritzeln gekuppelt werden. Mittels Rippen, die kreisbogenförmig der Kontur der Ritzel angepasst sind, werden die frei in dem Gehäuse angeordneten Ritzel in ihrer Stellung gehalten. Das Gehäuse beinhaltet außerdem lösbare, winkelförmige Positionierteile, die vorragend ausgebildete, zylinderförmige Erhebungen mit Rippen aufweisen, und mit den Ritzeln und ihren jeweiligen Teilnuten zu Fixierender Winkelstellung der Ritzel zusammenwirken.From document EP-
Der Zusammenbau des obigen Steuerungskasten ist kompliziert und er muß bei jeder Neueinstellung geöffnet werden, wobei Fehleinstellungen bei den lösbaren Positionierteilen nicht auszuschließen sind, da diese jeweils beim Ein- und Ausbau der Teile eintreten können, und die genaue Einstellung der antreibenden und der angetriebenen Wellen zueinander beeinträchtigt. Darüber hinaus muß der Steuerungskasten nach jedem Ausbau bzw. nach jeder Einstellung neu gedichtet werden.The assembly of the above control box is complicated and it has to be opened with every readjustment, incorrect settings of the releasable positioning parts cannot be ruled out, since these can occur when installing and removing the parts, and the exact setting of the driving and driven shafts to each other impaired. In addition, the control box must be resealed after each removal or adjustment.
Die JP-A-57-83617 beschreibt eine Vorrichtung zur Einstellung der Steuerzeiten einer Brennkraftmaschine mit einer Kurbelwelle, die in einem Kurbelgehäuse gelagert ist und mindestens einer Nockenwelle, die im Kurbelgehäuse oder in einem Zylinderkopf angeordnet und von der Kurbelwelle angetrieben ist, wobei die Nockenwelle und die Kurbelwelle in ihrer Drehlage fixierbar sind und wobei ein Fixierstift in der Einstellposition der Nockenwelle im Bereich eines Nockenwellenlagers spielfrei aber leichtgängig durch eine seitliche Bohrung im Kurbelgehäuse bzw. im Zylinderkopf in eine radiale Nockenwellenbohrung einsteckbar ist. Nachteilig an dieser Vorrichtung ist die nicht ausreichende Drehfixierung der Kurbelwelle.JP-A-57-83617 describes a device for adjusting the timing of an internal combustion engine having a crankshaft which is mounted in a crankcase and at least one camshaft which is arranged in the crankcase or in a cylinder head and is driven by the crankshaft, the camshaft and the crankshaft can be fixed in its rotational position, and a fixing pin in the setting position of the camshaft in the area of a camshaft bearing can be inserted into a radial camshaft bore without play but smoothly through a lateral bore in the crankcase or in the cylinder head. A disadvantage of this device is that the crankshaft is not sufficiently rotationally fixed.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Einstellung der Steuerzeiten bei einer Brennkraftmaschine vorzugschlagen, welche einfach zu handhaben ist und die Anforderung auf genaue Positionseinhaltung der treibenden Kurbelwelle und der angetriebenen Nockenwelle während der Einstellungsarbeiten erfüllt.The invention is based on the object of proposing a device for setting the control times in an internal combustion engine which is easy to handle and which fulfills the requirement for exact position maintenance of the driving crankshaft and the driven camshaft during the adjustment work.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the characterizing features of
Gemäß vorliegender Erfindung wird die Nockenwelle und die Kurbelwelle durchje einen Einstellstift in einer definierten Position unverrückbar festgehalten. Die Kurbelwelle wird in ihrer Lage durch den Einstellstift und durch die im Kurbelgehäuse eingeschraubte Anschlaghülse festgehalten. Für die von der Masse her wesentlich kleinere Nockenwelle genügt zur Arretierung derselben ein Einstellstift, der durch das Kurbelgehäuse oder durch das eigens für die Nockenwelle vorgesehene Gehäuse eingeschraubt ist und in der Nockenwelle innerhalb einer dafür vorgesehenen Bohrung rastet.According to the present invention, the camshaft and the crankshaft are immovably held in a defined position by an adjusting pin. The crankshaft is held in place by the adjusting pin and by the stop sleeve screwed into the crankcase. For the camshaft, which is much smaller in terms of mass, an adjusting pin suffices to lock it, which is screwed through the crankcase or through the housing provided specifically for the camshaft and engages in the camshaft within a bore provided for this purpose.
Die Spitzen der Einstellstifte ragen in die jeweiligen Bohrungen der Nocken- und Kurbelwelle leichtgängig, jedoch ohne Spiel, ein, um jeglicher Drehbewegung der Wellen entgegenzuwirken.The tips of the adjusting pins protrude smoothly into the respective bores of the camshaft and crankshaft, but without play, in order to counteract any rotation of the shafts.
Um eine erhöhte Sicherung gegen Verdrehung zu erreichen, ist vorgesehen, die Spitzen der Einsteilstifte und die zugehörigen Bohrungen bei der Nocken- und Kurbelwelle mit Gewinde zu versehen, um eine erhöhte Haftung der Teile miteinander gegenüber Verdrehungen der Wellen zu erreichen.In order to achieve increased protection against rotation, provision is made for the tips of the adjusting pins and the associated bores on the camshaft and crankshaft to be threaded, in order to achieve increased adhesion of the parts to one another against rotation of the shafts.
Gemäß Anspruch 3 ist vorgesehen, jegliche Makrobewegung der Wellen zusätzlich durch magnetische Aktivierung der Spitzen der Einstellstifte auszuschalten, wodurch höchste Einstellungspräzision erreicht werden kann.According to
Vorteilhafterweise ist das innerhalb des Kurbelgehäuses liegende Teil des Einstellstiftes an der Nockenwelle und das der Anschlaghülse an der Kurbelwelle im Durchmesser abgesetzt. Der Anfang des abgesetzten Teils ist jeweils mit Gewinde versehen und im Kurbelgehäuse fest verschraubt. Die abgesetzte Stirnfläche bei beiden Teilen liegt am Kurbelgehäuse an und hält das jeweilige Teil gegen Kippbewegungen fest. Das Endteil der Anschlaghülse liegt zusätzlich im eingebauten Zustand an einer an der Kurbelwelle abgeflachten Stelle an und bildet damit eine zusätzliche Sicherung gegen Verdrehung der Kurbelwelle.Advantageously, the part of the adjusting pin located within the crankcase is offset in diameter on the camshaft and that of the stop sleeve on the crankshaft. The beginning of the stepped part is threaded and screwed into the crankcase. The offset end face on both parts lies on the crankcase and holds the respective part against tilting movements. The end part of the stop sleeve is also in the installed state on the Crankshaft flattened point and thus forms an additional safeguard against rotation of the crankshaft.
Weitere Merkmale der Erfindung ergeben sich aus der Beschreibung und den Zeichnungen, in denen schematisch bevorzugte Ausführungsbeispiele der Erfindung dargestellt sind.Further features of the invention result from the description and the drawings, in which preferred exemplary embodiments of the invention are shown schematically.
Es zeigt:
- Fig. 1:
- Einen Axialschnitt an einer Kurbelwelle mit dem darin eingreifenden Einstellstift, wobei dieser bei der Variante "a" ohne Spiel und bei der Variante "b" spielbehaftet in die Bohrung eingreift.
- Fig. 2:
- Einen Axialschnitt durch das Kurbelgehäuse einer Brennkraftmaschine wo die Nockenwelle und die Kurbelwelle in ihrer Position arretiert sind.
- Fig. 1:
- An axial section on a crankshaft with the adjusting pin engaging therein, which engages in the variant "a" without play and in the variant "b" with play in the bore.
- Fig. 2:
- An axial section through the crankcase of an internal combustion engine where the camshaft and the crankshaft are locked in their position.
Fig. 1 "a" zeigt einen Axialschnitt an einem Kurbelgehäuse 1, worin eine Kurbelwelle 7 eingelagert ist. Seitlich an einer Kurbelwange ist eine Anschlagfläche 23 vorgesehen, mit einer Bohrung 21, welche mit einer Gewindebohrung 24 am Kurbelgehäuse axial fluchtet. Der Einstellstift 20 wird durch die Gewindebohrung 24 am Kurbelgehäuse eingedreht bis seine abgesetzte Fläche 25 am Kurbelgehäuse anliegt und seine Spitze in die Bohrung 21 eingreift. Somit kann die Kurbelwelle in der gewünschten Position gehalten werden. Das Außenteil des Einstellstiftes ist gerändelt, um den Ein- und Ausbau desselben zu ermöglichen.Fig. 1 "a" shows an axial section on a
Variante "b" unterscheidet sich von Variante "a" nur dadurch, daß die Bohrung 22 in die der Einstellstift 20 eingreift mit mehr Spiel als bei der Bohrung 21 behaftet ist, was bei der Herstellung leichter und wirtschaftlicher ist.Variant "b" differs from variant "a" only in that the
Figur 2 zeigt im Axialschnitt ein Kurbelgehäuseteil 1 einer Brennkraftmaschine mit einer Nockenwelle 6 und der darin gelagerten Kurbelwelle 7. Das Kurbelgehäuse weist auf der Höhe der Nockenwelle eine Bohrung 4 auf, deren Anfangsteil 4′ mit Innengewinde versehen ist. Ebenso auf der Höhe des oberen Teils der Kurbelwelle ist im Kurbelgehäuse eine Gewindebohrung 15 vorgesehen. Die Nockenwelle weist eine Bohrung 5 auf, die fluchtend mit der Bohrung 4 liegt, wenn die Nockenwelle in die für die Einstellung der Steuerzeiten maßgebende Position gebracht ist. Durch die zwei miteinander fluchtenden Bohrungen wird der Einstellstift 2 durchgeschoben und am Gewindeteil 4′ festgedreht. Die Spitze des abgesetzten Teils 3 des Einstellstiftes rastet in die Bohrung 5 ein und hält die Nockenwelle 6 in ihrer Position unverrückbbar fest.Figure 2 shows in axial section a
Im eingedrehten Zustand rastet das Ende des Einstellstiftes in die Nockenwellenbohrung leichtgängig und spielfrei ein und arretiert die Nockenwelle in der für die Einstellung bestimmte Position fest. Eine erhöhte Sicherheit gegen Verdrehung wird durch das Anlegen der abgesetzten Ebene des Einstellstiftes am Kurbelgehäuse erreicht. Der Einstellstift ist gerändelt oder mit einem Sechskantkopf oder mit einem Schlitz versehen, um den Einbau bzw. die Drehung dieses Teils in das Kurbelgehäuse zu erleichtern.When screwed in, the end of the adjusting pin snaps into the camshaft bore smoothly and without play and locks the camshaft firmly in the position intended for adjustment. Increased security against twisting is achieved by creating the offset Level of the adjusting pin on the crankcase reached. The adjustment pin is knurled or has a hexagon head or a slot to facilitate the installation or rotation of this part in the crankcase.
Ferner ist am Kurbelgehäuse auf der Höhe des Kurbelwellenoberteils eine Gewindebohrung vorgesehen, durch die eine im Außendurchmesser abgesetzte Anschlaghülse 9 eingeschraubt ist. Das Gewindeteil 11 der Anschlaghülse liegt am Anfang des abgesetzten Stückes und ist so bemessen, daß die Anschlaghülse im eingebauten Zustand mit der abgesetzten Fläche auf der Kurbelgehäuseaußenwand anliegt, während gleichzeitig das Endteil auf der um die Gewindebohrung 14 abgeflachten Stelle 8 an der Kurbelwelle an liegt. Dadurch wird die höchste Sicherheit gegen Verdrehung erreicht.Furthermore, a threaded hole is provided on the crankcase at the level of the crankshaft upper part, through which a
Durch die Anschlaghülse 9 wird ein Einstellstift leichtgängig aber spielfrei eingeschoben, dessen Gewindespitze in die Kurbelwelle in die gegenüberliegende Gewindebohrung 14 eingedreht wird und zusammen mit der Anschlaghülse die Kurbelwelle in ihrer Position unverrückbar festhält.Through the
Falls erforderlich, kann eine eventuell durch die Wucht der Kurbelwelle eintretende Makrobewegung durch magnetische Aktivierung der Spitze des Einstellstiftes 13 innerhalb der Gewindebohrung 14 ausgeschaltet werden. Ebenso ist die Einstellhülse gerändelt, oder mit einem Sechskantkopf versehen, um den Einbau zu erleichtern.If necessary, any macro movement that may occur due to the force of the crankshaft can be eliminated by magnetically activating the tip of the
Durch die zwei Einstellstifte und die Anschlaghülse wird die treibende Kurbelwelle und die angetriebene Nockenwelle in unverrückbare Position gebracht. Das kraftübertragende Element, Ketten- oder Rädertrieb, kann dann an die unverrückbar fixierten Wellen befestigt werden.The driving crankshaft and the driven camshaft are brought into immovable position by the two adjusting pins and the stop sleeve. The power transmission Element, chain or wheel drive, can then be attached to the immovably fixed shafts.
Bei dieser genauen Methode können die Stiftlöcher in den Zahnrädern sowie jegliche Markierung auf den Rädern entfallen. Auch Block- oder Verteilereinspritzpumpen können in gleicher Weise mit einer festen Blockierung der vorgesehenen Einstellposition fehlerfrei eingestellt werden.This precise method eliminates the pin holes in the gears and any marks on the wheels. Block or distributor injection pumps can also be set correctly in the same way with a fixed blocking of the intended setting position.
Nach Beendigung der Einstell- und Montagearbeiten werden die Anschlagstifte und die Anschlaghülse entfernt und die Öffnungen am Kurbelgehäuse mit einer Schlußschraube verschlossen.After completing the adjustment and assembly work, the stop pins and the stop sleeve are removed and the openings on the crankcase are closed with a locking screw.
Claims (5)
- A device for setting the timing of an internal combustion engine, comprising a crankshaft (7) mounted in a crankcase (1) and at least one camshaft (6) disposed in the crankcase (1) or in a cylinder head and driven by the crankshaft (7), the camshaft (6) and the crankshaft (7) being lockable in rotary position and a securing pin (2) being insertable without clearance, but easily running through a lateral bore (4) in the crankcase (1) or cylinder head into a radial bore (5) in the camshaft, in the neighbourhood of a camshaft bearing (17) when the camshaft (6) is in the setting position, characterised in that the crankshaft (7) has a defined bore (21) disposed on a crank web (18) at a distance from the axis of rotation of the crankshaft (7) and the crankcase (1) has a threaded bore (24) in line with the bore (21) in the crankshaft (1),and an adjusting pin (20) is provided and can be screwed into the threaded bore (21) in the crankcase (1), the tip of the pin engaging in the bore (21) in the crankshaft (1).
- A device according to claim 1, characterised in that the adjusting pin (20) engages with clearance in the bore (21) in the crankshaft (1), the end of the adjusting pin (20) co-operates with the base of the bore in the crankshaft (1) to form an abutment, and the adjusting pin (20) has a portion (19) with a shoulder (25) which, when installed, abuts a defined area (26) on the outer surface of the crankcase (1).
- A device according to claim 2, characterised in that the tip of the adjusting pin (20) is magnetic.
- A device for setting the timing of an internal combustion engine, comprising a crankshaft (7) mounted in a crankcase (1) and at least one camshaft (6) disposed in the crankcase (1) or in a cylinder head and driven by the crankshaft (7), the camshaft (6) and the crankshaft (7) being lockable in rotary position and a securing pin (2) being insertable without clearance but easily running through a lateral bore (4) in the crankcase (1) or cylinder head into a radial bore (5) in the camshaft, in the neighbourhood of a camshaft bearing (17) when the camshaft (6) is in the setting position, characterised in that the camshaft (7) has a defined abutment surface (8) and a bore (14) disposed on a crank web (18) at a distance from the axis of rotation of the crankshaft (7), and an abutment sleeve (9) is provided and can be screwed into an aligned threaded bore (15) in the crankcase (1), the sleeve having a shoulder which abuts a defined area on the outside of the crankcase (1) and the end part of the sleeve abutting the abutment surface (8) of the crankshaft (7), and an adjusting pin (13) can be screwed into the abutment sleeve (9), the tip of the pin penetrating into the bore (14) in the crankshaft (1).
- A device according to claim 4, characterised in that the adjusting pin (13) has a threaded tip and can therefore be screwed into the bore (14) in the crankshaft (7) when a shoulder on the adjusting pin (13) bears on the end of the abutment sleeve (9) remote from the crankshaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3832812 | 1988-09-28 | ||
| DE3832812A DE3832812A1 (en) | 1988-09-28 | 1988-09-28 | DEVICE FOR ADJUSTING THE TIMING TIMES ON AN INTERNAL COMBUSTION ENGINE WHOSE CAMSHAFT IS DRIVED BY A TIMING BELT, A CHAIN OR ALSO A GEAR DRIVE DRIVE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0362687A1 EP0362687A1 (en) | 1990-04-11 |
| EP0362687B1 true EP0362687B1 (en) | 1993-10-20 |
Family
ID=6363828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89117918A Expired - Lifetime EP0362687B1 (en) | 1988-09-28 | 1989-09-28 | Valve timing setting system for an internal-combustion engine the camshaft of which is driven by a belt, a chain or a gear |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5099563A (en) |
| EP (1) | EP0362687B1 (en) |
| DE (2) | DE3832812A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845397A (en) * | 1997-02-21 | 1998-12-08 | Cummins Engine Company, Inc. | Static timing method for heavy duty diesel engines |
| US5950294A (en) * | 1998-03-17 | 1999-09-14 | Gibbs; Joseph L. | Tool for immobilizing cam shaft gears |
| JP2000304010A (en) * | 1999-02-10 | 2000-10-31 | Nsk Ltd | Mounting structure of fixed member on fixing member |
| DE19919660A1 (en) * | 1999-04-29 | 2000-11-02 | Volkswagen Ag | Method for temporary locking of crankshaft in IC engines with detachable connection of part segment of timing sprocket to end face of engine |
| GB2392711B (en) | 2002-09-03 | 2004-08-18 | Auto Service Tools Ltd | Holding device |
| BR0302062B1 (en) * | 2003-05-30 | 2011-12-13 | internal combustion engine and engine housing. | |
| FR2855553B1 (en) * | 2003-06-02 | 2007-06-08 | Inst Francais Du Petrole | INTERNAL COMBUSTION ENGINE WITH A MOBILE HEAD, IN PARTICULAR A TEST ENGINE |
| AT501132B1 (en) * | 2004-11-11 | 2006-11-15 | Avl List Gmbh | Cylinder head arrangement for internal combustion engine, has cylinder head with gas exchange valves for cylinders that are actuated via bucket tappets by camshafts, where camshafts are rotatably mounted inside cylinder head cover |
| FR2897400B1 (en) * | 2006-02-10 | 2009-06-05 | Renault Sas | PIECE FOR LOCKING A FLYWHEEL |
| DE102010055192B4 (en) | 2010-12-20 | 2024-05-02 | Volkswagen Aktiengesellschaft | Combustion engine with guide for securing the camshaft and locking element |
| US8776741B2 (en) * | 2011-03-03 | 2014-07-15 | GM Global Technology Operations LLC | Engine assembly including cam phaser assembly aid pin |
| DE102011121860A1 (en) | 2011-12-21 | 2013-06-27 | Volkswagen Aktiengesellschaft | Internal combustion engine has shaft which is rotatably connected to transmitter element overlapping slot or aperture of shaft for detecting angular position of shaft using sensor positionable in a region of opening of housing |
| US20140290626A1 (en) * | 2013-03-28 | 2014-10-02 | Caterpillar Inc. | Assembling fuel pump on engine |
| DE102014104995A1 (en) * | 2014-04-08 | 2015-10-08 | Thyssenkrupp Presta Teccenter Ag | Module with pre-oriented camshaft |
| CN104329168A (en) * | 2014-09-05 | 2015-02-04 | 朝柴动力科技（北京）有限公司 | Engine cylinder piston upper stopping point locking mechanism |
| DE102016112994A1 (en) | 2016-07-14 | 2018-01-18 | Thyssenkrupp Ag | Mounting aid, camshaft module and method for fixing the rotational position of rotatably mounted shafts |
| DE102016217356B4 (en) | 2016-09-12 | 2021-02-18 | Volkswagen Aktiengesellschaft | Device for the temporary relative non-rotatable locking of two camshafts |
| FR3077843B1 (en) * | 2018-02-15 | 2022-05-13 | Psa Automobiles Sa | CAMSHAFT LOCKING DEVICE |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4232497A (en) * | 1979-02-21 | 1980-11-11 | Albin Meschnig | Device for securing platelike elements to a carrying structure at a distance therefrom |
| DE3131278A1 (en) * | 1981-08-07 | 1983-02-24 | Bayerische Motoren Werke AG, 8000 München | METHOD AND DEVICE FOR ADJUSTING THE VALVE CONTROL OF A PISTON PISTON COMBUSTION ENGINE, IN PARTICULAR. A DIESEL ENGINE |
| DE3629431A1 (en) * | 1986-08-29 | 1988-03-03 | Porsche Ag | DEVICE FOR ADJUSTING WHEELS OF A MOTOR VEHICLE, IN PARTICULAR FOR ADJUSTING A WHEEL CRASH |
| US4796494A (en) * | 1987-03-30 | 1989-01-10 | Eaton Corporation | Headlight position adjustment assembly |
| SE458137B (en) * | 1987-05-13 | 1989-02-27 | Volvo Ab | PROCEDURE AND DEVICE FOR A CAR CAMERA WITH DOUBLE CAMSHAFT |
| US4957317A (en) * | 1990-04-27 | 1990-09-18 | Taurus Precision, Inc. | Drum lock device |
-
1988
- 1988-09-28 DE DE3832812A patent/DE3832812A1/en not_active Withdrawn
-
1989
- 1989-09-14 US US07/407,101 patent/US5099563A/en not_active Expired - Fee Related
- 1989-09-28 DE DE89117918T patent/DE58905960D1/en not_active Expired - Fee Related
- 1989-09-28 EP EP89117918A patent/EP0362687B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5099563A (en) | 1992-03-31 |
| DE3832812A1 (en) | 1990-03-29 |
| DE58905960D1 (en) | 1993-11-25 |
| EP0362687A1 (en) | 1990-04-11 |
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