EP0416463A1 - Internal combustion engine with camshafts and a phase change mechanism - Google Patents

Internal combustion engine with camshafts and a phase change mechanism Download PDF

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Publication number
EP0416463A1
EP0416463A1 EP90116637A EP90116637A EP0416463A1 EP 0416463 A1 EP0416463 A1 EP 0416463A1 EP 90116637 A EP90116637 A EP 90116637A EP 90116637 A EP90116637 A EP 90116637A EP 0416463 A1 EP0416463 A1 EP 0416463A1
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EP
European Patent Office
Prior art keywords
pump
combustion engine
internal combustion
housing cover
camshaft
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Granted
Application number
EP90116637A
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German (de)
French (fr)
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EP0416463B1 (en
Inventor
Josef Thoma
Uwe Hoyer
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP0416463A1 publication Critical patent/EP0416463A1/en
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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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley

Definitions

  • the invention relates to an internal combustion engine with camshafts and a device for the relative rotation angle adjustment of one of the camshafts to a drive wheel according to the features in the preamble of patent claim 1.
  • the hydraulic pump and hydraulic motor are each designed in the vane type and are structurally arranged in a housing separate from the internal combustion engine. Since the potential of the hydraulic pump driven by a camshaft of the internal combustion engine cannot be increased by any choice of pump size due to the limited installation space, a limit can be reached for the proposed device, in particular for a perfect continuous control of the angle of rotation adjustment.
  • the invention has for its object to develop a generic internal combustion engine such that a particularly efficient hydraulic motor with a small structure - such as. B. the linear motor proposed in P 36 16 234 - can be combined with a pump that is efficient in a small installation space in a structurally simple manner.
  • claims 2 with 6 embodiments of the invention are specified, the respective pump being essentially a finished part to be attached to the housing cover.
  • claims 7 and 8 describe an embodiment of the invention in which the pump is essentially formed from parts integrated on the housing cover of the internal combustion engine on the one hand and on the driving camshaft on the other hand.
  • An internal combustion engine 1 (not shown in more detail) is equipped with an intake valve-controlling camshaft 2 - in the further intake camshaft 2 - and with an exhaust valve-controlling camshaft 3 - in the further exhaust camshaft 3.
  • the intake camshaft 2 is assigned a device 4 for the relative rotation angle adjustment of the intake camshaft 2 to a drive wheel 5.
  • the device 4 comprises an adjusting arrangement 6 on the camshaft side, the construction of which is essentially described in P 36 16 234.
  • An actuation arrangement 7 is assigned to the mechanical adjustment arrangement 6, which is arranged essentially in the front-side recesses of the intake camshaft 2 and is provided in a housing cover 8 which is detachably arranged on the internal combustion engine 1.
  • the actuation arrangement 7 comprises a hydraulic motor 9, which is provided as a linear motor formed from a cylinder / piston unit.
  • a pump 10 is arranged on the detachable housing cover 8 of the internal combustion engine 1, the pump 10 being arranged on the housing cover 8 in a drive arrangement with the exhaust camshaft 3 of the internal combustion engine 1.
  • the pump 10 which is essentially designed as a finished part, is arranged via its outer contour 11 in a recess 12 of the housing cover 8, the pump 10 via a part of its outer contour 11 with a part of the recess 12 in the housing cover 8, a chamber 13 for pump 10 Limited pressure oil.
  • the pressure oil chamber 13 is connected to a control chamber 16 of the hydraulic motor 9 via lines 15 integrated in the housing cover 8 and connected to a control device comprising a controllable timing valve 14.
  • the pump 10 inserted into the recess 12 of the housing cover 8 is by means of a clamping cover 17 arranged securely.
  • the clamping cover 17 and the housing cover 8 each have a bearing 19 for mounting a shaft 21 which carries an eccentric 20 of an eccentric radial piston pump 10, this shaft 21 being connected to the exhaust camshaft 3 via a plug arrangement 22 in a drive-proof connection.
  • the shaft 21 of the eccentric radial piston pump 10 carrying the eccentric 20 is connected in one piece to the exhaust camshaft 3 and the shaft 21 is supported only via a bearing 19 arranged in the housing cover 8.
  • the internal combustion engine 1 'of FIG. 2 differs from that of FIG. 1 in that a detachably formed housing cover 23 comprises a fixed slide ring 24 eccentrically arranged with respect to the exhaust camshaft 3 of an internally pressurized radial piston pump 25, the rotor 26 of which is guided with the radially movable one Piston 27 is arranged on the exhaust camshaft 3 in a rotationally fixed manner. Furthermore, a pin 28 is fixedly arranged in the housing cover 23 and engages in a bore 29 which is formed centrally in the rotor 26 of the pump 25 in a sliding-sealing manner.
  • the pin 28 has blind holes 30, 31 arranged from both ends with channels to the pistons 27 of the pump 25, the suction-side blind hole 30 with a lubricating oil channel 32 arranged in the exhaust camshaft 3 and the pressure-side blind hole 31 with one in the housing cover 23 integrated pressure line 33 is connected.
  • a pump 25 which is short in the axial direction and is arranged separately from the hydraulic motor 9 on the housing cover 23 is achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Reciprocating Pumps (AREA)

Abstract

In an internal combustion engine with camshafts (2, 3) and a mechanism for changing the phase of one (2) of the camshafts relative to a driving wheel (5), the mechanism comprising a hydraulic motor (7) and a hydraulic pump (10), free combination of the pump and hydraulic motor is made possible by the fact that the pump (10) is arranged structurally separate from the hydraulic motor (7) on a detachable crankcase cover (8) of the internal combustion engine and the crankcase cover (8) is provided with devices for the drive arrangement of the pump with the camshaft (3) controlling the exhaust valves. In one embodiment of the invention, the device is chosen for the drive arrangement of a pump (10) provided as a preassembled unit. In a further illustrative embodiment, the device is a component which is integrated into the crankcase cover of the internal combustion engine and, together with a part arranged on the driving camshaft, forms the pump.

Description

Die Erfindung bezieht sich auf eine Brennkraftmaschine mit Nockenwellen und einer Vorrichtung zur relativen Drehwinkelverstellung einer der Nockenwellen zu einem Antriebsrad gemäß den Merkmalen im Oberbegriff des Patentanspruches 1.The invention relates to an internal combustion engine with camshafts and a device for the relative rotation angle adjustment of one of the camshafts to a drive wheel according to the features in the preamble of patent claim 1.

Vorgeschlagen wurde eine derartig ausgerüstete Brenn­kraftmaschine in der P 38 34 857. Hierbei sind Hydro­pumpe und Hydromotor jeweils in Flügelzellenbauart ausgeführt und baulich in einem von der Brennkraftma­schine gesonderten Gehäuse angeordnet. Da das Potential der von einer Nockenwelle der Brennkraftmaschine ange­triebenen Hydropumpe durch den beschränkten Einbauraum nicht durch beliebige Wahl der Pumpengröße steigerbar ist, kann für die vorgeschlagene Vorrichtung insbeson­dere für eine einwandfreie kontinuierliche Regelung der Drehwinkelverstellung eine Grenze erreicht sein.An internal combustion engine equipped in this way was proposed in P 38 34 857. The hydraulic pump and hydraulic motor are each designed in the vane type and are structurally arranged in a housing separate from the internal combustion engine. Since the potential of the hydraulic pump driven by a camshaft of the internal combustion engine cannot be increased by any choice of pump size due to the limited installation space, a limit can be reached for the proposed device, in particular for a perfect continuous control of the angle of rotation adjustment.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungs­gemäße Brennkraftmaschine derart weiterzubilden, daß ein bei kleinem Aufbau in der Funktion besonders effizienter Hydromotor - wie z. B. der in P 36 16 234 vorgeschlagene Linearmotor - mit einer bei kleinem Bauraum effizienten Pumpe auf baulich einfache Weise kombiniert werden kann.The invention has for its object to develop a generic internal combustion engine such that a particularly efficient hydraulic motor with a small structure - such as. B. the linear motor proposed in P 36 16 234 - can be combined with a pump that is efficient in a small installation space in a structurally simple manner.

Gelöst wird diese Aufgabe mit dem kennzeichnenden Merkmal des Patentanspruches 1. Der Vorteil der Erfin­dung ist in der freien Wahl von Pumpe und Hydromotor zu sehen, wobei mit der Anordnung der beiden Funktions­einheiten an einem lösbaren Gehäusedeckel der Brenn­kraftmaschine der gegebene Einbauraum bestmöglich nutzbar wird.This object is achieved with the characterizing feature of claim 1. The advantage of the invention can be seen in the free choice of pump and hydraulic motor, with the arrangement of the two functional units on a detachable housing cover of the internal combustion engine making the given installation space available in the best possible way.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben. So sind in den Ansprüchen 2 mit 6 Ausgestaltungen der Erfindung angegeben, wobei die jeweilige Pumpe im wesentlichen ein am Gehäusedeckel anzubringendes Fertigteil ist. Dagegen beschreiben die Ansprüche 7 und 8 eine Ausgestaltung der Erfindung, bei der die Pumpe im wesentlichen aus am Gehäusedeckel der Brennkraftmaschine einerseits und an der antreibenden Nockenwelle andererseits integrierten Teilen gebildet ist.Advantageous embodiments of the invention are described in the subclaims. Thus, claims 2 with 6 embodiments of the invention are specified, the respective pump being essentially a finished part to be attached to the housing cover. In contrast, claims 7 and 8 describe an embodiment of the invention in which the pump is essentially formed from parts integrated on the housing cover of the internal combustion engine on the one hand and on the driving camshaft on the other hand.

Die Erfindung ist anhand zweier in der Zeichnung darge­stellter Ausführungsbeispiele beschrieben. Es zeigt:

  • Fig. 1 eine Brennkraftmaschine mit einer Einlaß-Nockenwelle und einer zugeordneten Drehwinkelverstell-Vorrichtung mit einem hydraulischen Linearmotor und einer im wesentlichen als Fertigteil vorgesehenen, von der Auslaß-Nockenwelle angetriebenen Pumpe am lösbaren Gehäusedeckel,
  • Fig. 2 eine Brennkraftmaschine in abgewandelter Ausgestaltung, bei der die Pumpe im wesent­lichen aus am Gehäusedeckel der Brennkraft­maschine und an der antreibenden Auslaß-­Nockenwelle integrierten Teilen gebildet ist.
The invention is described with reference to two exemplary embodiments shown in the drawing. It shows:
  • 1 shows an internal combustion engine with an inlet camshaft and an associated rotational angle adjustment device with a hydraulic linear motor and a pump provided on the detachable housing cover and essentially provided as a finished part and driven by the outlet camshaft,
  • Fig. 2 is an internal combustion engine in a modified embodiment, in which the pump is formed essentially from parts integrated on the housing cover of the internal combustion engine and on the driving exhaust camshaft.

Eine nicht näher gezeigte Brennkraftmaschine 1 ist mit einer Einlaßventile steuernden Nockenwelle 2 - im weiteren Einlaß-Nockenwelle 2 - und mit einer Auslaß­ventile steuernden Nockenwelle 3 - im weiteren Auslaß-­Nockenwelle 3 ausgerüstet. Der Einlaß-Nockenwelle 2 ist eine Vorrichtung 4 zur relativen Drehwinkelverstel­lung der Einlaß-Nockenwelle 2 zu einem Antriebsrad 5 zugeordnet. Die Vorrichtung 4 umfaßt nockenwellenseitig eine Verstellanordnung 6, deren Aufbau im wesentlichen in der P 36 16 234 beschrieben ist. Der im wesentlichen in stirnseitigen Ausnehmungen der Einlaß-Nockenwelle 2 angeordneten mechanischen Verstellanordnung 6 ist eine Betätigungsanordnung 7 zugeordnet, die in einem an der Brennkraftmaschine 1 lösbar angeordneten Gehäusedeckel 8 vorgesehen ist. Die Betätigungsanordnung 7 umfaßt einen Hydromotor 9, der als aus einer Zylinder/Kolben-Einheit gebildeter Linearmotor vorgesehen ist.An internal combustion engine 1 (not shown in more detail) is equipped with an intake valve-controlling camshaft 2 - in the further intake camshaft 2 - and with an exhaust valve-controlling camshaft 3 - in the further exhaust camshaft 3. The intake camshaft 2 is assigned a device 4 for the relative rotation angle adjustment of the intake camshaft 2 to a drive wheel 5. The device 4 comprises an adjusting arrangement 6 on the camshaft side, the construction of which is essentially described in P 36 16 234. An actuation arrangement 7 is assigned to the mechanical adjustment arrangement 6, which is arranged essentially in the front-side recesses of the intake camshaft 2 and is provided in a housing cover 8 which is detachably arranged on the internal combustion engine 1. The actuation arrangement 7 comprises a hydraulic motor 9, which is provided as a linear motor formed from a cylinder / piston unit.

Vom Hydromotor 9 baulich gesondert ist an dem lösbar ausgebildeten Gehäusedeckel 8 der Brennkraftmaschine 1 eine Pumpe 10 angeordnet, wobei die Pumpe 10 am Gehäuse­deckel 8 in einer Antriebsanordnung mit der Auslaß-­Nockenwelle 3 der Brennkraftmaschine 1 angeordnet ist. Die im wesentlichen als Fertigteil gestaltete Pumpe 10 ist über ihre Außenkontur 11 in einer Ausnehmung 12 des Gehäusedeckels 8 angeordnet, wobei die Pumpe 10 über einen Teil ihrer Außenkontur 11 mit einem Teil der Ausnehmung 12 im Gehäusedeckel 8 eine Kammer 13 für von der Pumpe 10 gefördertes Drucköl begrenzt. Die Drucköl-­Kammer 13 ist über im Gehäusedeckel 8 integrierte und mit einer ein regelbares Taktventil 14 umfassenden Regeleinrichtung verbundene Leitungen 15 mit einem Steuerraum 16 des Hydromotors 9 verbunden.Structurally separate from the hydraulic motor 9, a pump 10 is arranged on the detachable housing cover 8 of the internal combustion engine 1, the pump 10 being arranged on the housing cover 8 in a drive arrangement with the exhaust camshaft 3 of the internal combustion engine 1. The pump 10, which is essentially designed as a finished part, is arranged via its outer contour 11 in a recess 12 of the housing cover 8, the pump 10 via a part of its outer contour 11 with a part of the recess 12 in the housing cover 8, a chamber 13 for pump 10 Limited pressure oil. The pressure oil chamber 13 is connected to a control chamber 16 of the hydraulic motor 9 via lines 15 integrated in the housing cover 8 and connected to a control device comprising a controllable timing valve 14.

Die in die Ausnehmung 12 des Gehäusedeckels 8 einge­setzte Pumpe 10 ist mittels eines Spanndeckels 17 gesichert angeordnet. Spanndeckel 17 und Gehäusedeckel 8 weisen jeweils ein Lager 19 zur Lagerung einer einen Exzenter 20 einer Exzenterradialkolbenpumpe 10 tragenden Welle 21 auf, wobei diese Welle 21 mit der Auslaß-­Nockenwelle 3 über eine Steckanordnung 22 in antriebs­fester Verbindung steht.The pump 10 inserted into the recess 12 of the housing cover 8 is by means of a clamping cover 17 arranged securely. The clamping cover 17 and the housing cover 8 each have a bearing 19 for mounting a shaft 21 which carries an eccentric 20 of an eccentric radial piston pump 10, this shaft 21 being connected to the exhaust camshaft 3 via a plug arrangement 22 in a drive-proof connection.

Es ist aber auch denkbar, daß die den Exzenter 20 tragende Welle 21 der Exzenterradialkolbenpumpe 10 mit der Auslaß-Nockenwelle 3 einstückig verbunden ist und die Welle 21 lediglich über ein im Gehäusedeckel 8 angeordnetes Lager 19 abgestützt wird.However, it is also conceivable that the shaft 21 of the eccentric radial piston pump 10 carrying the eccentric 20 is connected in one piece to the exhaust camshaft 3 and the shaft 21 is supported only via a bearing 19 arranged in the housing cover 8.

Beim Ausführungsbeispiel nach Fig. 2 sind die mit der Brennkraftmaschine 1 nach Fig. 1 identischen Teile mit den gleichen Bezugsziffern belegt. Die Brennkraftma­schine 1′ nach Fig. 2 weicht von der nach Fig. 1 dadurch ab, daß ein lösbar ausgebildeter Gehäusedeckel 23 einen zur Auslaß-Nockenwelle 3 exzentrisch angeordneten, fest­stehenden Gleitring 24 einer innenbeaufschlagten Radial­kolbenpumpe 25 umfaßt, deren Rotor 26 mit den radial beweglich geführten Kolben 27 an der Auslaß-Nockenwelle 3 drehfest angeordnet ist. Weiter ist im Gehäusedeckel 23 ein Zapfen 28 fest angeordnet, der in eine im Rotor 26 der Pumpe 25 zentrisch ausgebildete Bohrung 29 gleitdichtend eingreift. Der Zapfen 28 weist von beiden Enden her angeordnete Sacklochbohrungen 30, 31 mit Kanälen zu den Kolben 27 der Pumpe 25 auf, wobei die saugseitige Sacklochbohrung 30 mit einem in der Auslaß-­Nockenwelle 3 angeordneten Schmierölkanal 32 und die druckseitige Sacklochbohrung 31 mit einer im Gehäu­sedeckel 23 integrierten Druckleitung 33 in Verbindung steht. Mit dem Ausführungsbeispiel nach Fig. 2 ist eine in axialer Richtung kurzbauende, vom Hydromotor 9 gesondert am Gehäusedeckel 23 angeordnete Pumpe 25 erzielt.In the exemplary embodiment according to FIG. 2, the parts which are identical to the internal combustion engine 1 according to FIG. 1 are given the same reference numbers. The internal combustion engine 1 'of FIG. 2 differs from that of FIG. 1 in that a detachably formed housing cover 23 comprises a fixed slide ring 24 eccentrically arranged with respect to the exhaust camshaft 3 of an internally pressurized radial piston pump 25, the rotor 26 of which is guided with the radially movable one Piston 27 is arranged on the exhaust camshaft 3 in a rotationally fixed manner. Furthermore, a pin 28 is fixedly arranged in the housing cover 23 and engages in a bore 29 which is formed centrally in the rotor 26 of the pump 25 in a sliding-sealing manner. The pin 28 has blind holes 30, 31 arranged from both ends with channels to the pistons 27 of the pump 25, the suction-side blind hole 30 with a lubricating oil channel 32 arranged in the exhaust camshaft 3 and the pressure-side blind hole 31 with one in the housing cover 23 integrated pressure line 33 is connected. With the exemplary embodiment according to FIG. 2, a pump 25 which is short in the axial direction and is arranged separately from the hydraulic motor 9 on the housing cover 23 is achieved.

Claims (9)

1. Brennkraftmaschine mit Nockenwellen und einer Vorrichtung zur relativen Drehwinkelverstellung einer der Nockenwellen zu einem Antriebsrad,
- wobei die Vorrichtung (4) als Betätigungsanordnung (7) einen Hydromotor (9) umfaßt, der
- in hydraulischer Verbindung mit einer von der anderen Nockenwelle (3) angetriebenen Pumpe (10, 25) steht,
dadurch gekennzeichnet,
- daß die Pumpe (10, 25) vom Hydromotor (9) baulich gesondert an einem lösbar ausgebildeten Gehäuse­deckel (8, 23) der Brennkraftmaschine (1) ange­ordnet ist, und
- der Gehäusedeckel (8, 23) mit Einrichtungen (Aus­nehmung 12, Gleitring 24) zur Antriebsanordnung der Pumpe (10, 25) mit der anderen Nockenwelle (Auslaß-­Nockenwelle 3) versehen ist.1. internal combustion engine with camshafts and a device for the relative rotation angle adjustment of one of the camshafts to a drive wheel,
- The device (4) as an actuating arrangement (7) comprises a hydraulic motor (9)
- is in hydraulic connection with a pump (10, 25) driven by the other camshaft (3),
characterized,
- That the pump (10, 25) of the hydraulic motor (9) structurally separately on a detachable housing cover (8, 23) of the internal combustion engine (1) is arranged, and
- The housing cover (8, 23) is provided with devices (recess 12, slide ring 24) for driving the pump (10, 25) with the other camshaft (exhaust camshaft 3). 2. Brennkraftmaschine nach Anspruch 1, dadurch ge­kennzeichnet,
- daß der Gehäusedeckel (8) als Einrichtung eine Ausnehmung (12) zur Anordnung der Pumpe (10) über ihre Außenkontur (11) aufweist, wobei
- die Pumpe über einen Teil ihrer Außenkontur mit einem Teil der Ausnehmung (12) im Gehäusedeckel (8) eine Kammer (13) für von der Pumpe (10) gefördertes Drucköl begrenzt.2. Internal combustion engine according to claim 1, characterized in
- That the housing cover (8) as a device has a recess (12) for arranging the pump (10) via its outer contour (11), wherein
- The pump over a part of its outer contour with a part of the recess (12) in the housing cover (8) delimits a chamber (13) for the pressure oil pumped by the pump (10). 3. Brennkraftmaschine nach Anspruch 2, dadurch gekenn­zeichnet, daß die Drucköl-Kammer (13) über im Gehäusedeckel (8) integrierte und mit einer Regel­einrichtung (regelbares Taktventil 14) verbundene Leitungen (15) mit einem Steuerraum (16) des Hydro­motors (Zylinder/Kolben-Einheit 9) in Verbindung steht.3. Internal combustion engine according to claim 2, characterized in that the pressure oil chamber (13) in the housing cover (8) and with a control device (controllable timing valve 14) connected lines (15) with a control chamber (16) of the hydraulic motor (cylinder / Piston unit 9) is connected. 4. Brennkraftmaschine nach den Ansprüchen 2 und 3,
dadurch gekennzeichnet,
- daß die Pumpe (10) in der Ausnehmung (12) des Gehäusedeckels (8) mittels eines Spanndeckels (17) gesichert angeordnet ist, und
- daß mindestens in einem der Deckel (8 bzw. 17) ein Lager (19) für ein mit der anderen Nockenwelle (3) in Antriebsverbindung stehendes Pumpenelement (Welle 21) angeordnet ist.4. Internal combustion engine according to claims 2 and 3,
characterized,
- That the pump (10) in the recess (12) of the housing cover (8) by means of a clamping cover (17) is arranged secured, and
- That at least in one of the covers (8 or 17) a bearing (19) for a with the other camshaft (3) in drive connection pump element (shaft 21) is arranged. 5. Brennkraftmaschine nach Anspruch 4, dadurch ge­kennzeichnet,
- daß in Spanndeckel (17) und Gehäusedeckel (8) vorgesehene Lager (19) der Anordnung einer einen Exzenter (20) einer Exzenterradialkolbenpumpe (10) tragenden Welle (21) dienen, wobei
- die Welle (21) mit der anderen Nockenwelle (3) über eine Steckanordnung (22) in antriebsfester Ver­bindung steht.5. Internal combustion engine according to claim 4, characterized in
- That in the clamping cover (17) and housing cover (8) provided bearings (19) serve the arrangement of an eccentric (20) of an eccentric radial piston pump (10) supporting shaft (21), wherein
- The shaft (21) with the other camshaft (3) via a plug-in arrangement (22) in a drive connection. 6. Brennkraftmaschine nach Anspruch 4, dadurch ge­kennzeichnet, daß das im Gehäusedeckel angeordnete Lager der Anordnung einer mit der anderen Nocken­welle einstückig verbundenen Welle für den Exzenter einer Exzenterradialkolbenpumpe dient.6. Internal combustion engine according to claim 4, characterized in that the arranged in the housing cover Bearing arrangement of a shaft integrally connected to the other camshaft is used for the eccentric of an eccentric radial piston pump. 7. Brennkraftmaschine nach Anspruch 1, dadurch ge­kennzeichnet,
daß der Gehäusedeckel (23) als Einrichtung einen zur anderen Nockenwelle (3) exzentrisch angeord­neten, feststehenden Gleitring (24) einer innen beaufschlagten Radialkolbenpumpe (25) umfaßt, deren
- Rotor (26) mit den radial beweglich geführten Kolben (27) an der Nockenwelle (3) drehfest ange­ordnet ist.7. Internal combustion engine according to claim 1, characterized in
that the housing cover (23) comprises, as a device, a fixed sliding ring (24) eccentrically arranged to the other camshaft (3) of an internally loaded radial piston pump (25), the
- Rotor (26) with the radially movably guided pistons (27) on the camshaft (3) is arranged in a rotationally fixed manner. 8. Brennkraftmaschine nach Anspruch 7, dadurch ge­kennzeichnet,
- daß ein im Gehäusedeckel (23) fest angeordneter Zapfen (28) in eine im Rotor (26) zentrisch ausge­bildete Bohrung (29) gleitdichtend eingreift, und - von beiden Enden her angeordnete Sacklochbohrungen (30, 31) mit Kanälen zu den Kolben (27) aufweist, wobei
- die saugseitige Sacklochbohrung (30) mit einem in der anderen Nockenwelle (3) angeordneten Schmieröl­kanal (32) und
- die druckseitige Sacklochbohrung (31) mit einer im Gehäusedeckel (23) integrierten Druckleitung (33) in Verbindung steht.8. Internal combustion engine according to claim 7, characterized in
- That a pin (28) fixedly arranged in the housing cover (23) engages in a bore (29) which is formed centrally in the rotor (26), and - from both ends blind bore holes (30, 31) with channels to the pistons (27 ) has, whereby
- The suction-side blind hole (30) with a in the other camshaft (3) arranged lubricating oil channel (32) and
- The pressure-side blind hole (31) is connected to a pressure line (33) integrated in the housing cover (23). 9. Brennkraftmaschine nach einem oder mehreren der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß am Gehäusedeckel (8,23) ein mit der Pumpe (10,25) in Verbindung stehender Druckspeicher angeordnet ist.9. Internal combustion engine according to one or more of claims 1 to 8,
characterized in that a pressure accumulator connected to the pump (10, 25) is arranged on the housing cover (8, 23).
EP90116637A 1989-09-06 1990-08-30 Internal combustion engine with camshafts and a phase change mechanism Expired - Lifetime EP0416463B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929623 1989-09-06
DE3929623A DE3929623A1 (en) 1989-09-06 1989-09-06 INTERNAL COMBUSTION ENGINE WITH CAMSHAFT AND A TURNING ANGLE ADJUSTMENT

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EP0416463A1 true EP0416463A1 (en) 1991-03-13
EP0416463B1 EP0416463B1 (en) 1992-04-29

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EP90116637A Expired - Lifetime EP0416463B1 (en) 1989-09-06 1990-08-30 Internal combustion engine with camshafts and a phase change mechanism

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EP (1) EP0416463B1 (en)
DE (2) DE3929623A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008095459A1 (en) * 2007-02-08 2008-08-14 Ixetic Hückeswagen Gmbh Pump

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135378A1 (en) * 1991-10-26 1993-04-29 Bosch Gmbh Robert HYDRAULIC CONTROL DEVICE
JP2988101B2 (en) * 1992-01-30 1999-12-06 アイシン精機株式会社 Valve timing control device
DE4218082C5 (en) * 1992-06-01 2006-06-29 Schaeffler Kg Device for continuous angular adjustment between two shafts in drive connection
DE59302331D1 (en) * 1992-08-13 1996-05-30 Bayerische Motoren Werke Ag Reciprocating piston internal combustion engine with two gas exchange valves per cylinder
DE4235929C2 (en) * 1992-10-23 2000-08-24 Mannesmann Rexroth Ag Cylinder adjustment
DE4237193A1 (en) * 1992-11-04 1994-05-05 Bosch Gmbh Robert Method for controlling a device for the relative rotation of a shaft and device for the relative rotation of the shaft of an internal combustion engine
DE19708485A1 (en) 1997-03-03 1998-09-10 Bayerische Motoren Werke Ag Angle adjustment system for separate intake and exhaust camshafts of an internal combustion engine
DE19745670A1 (en) * 1997-10-17 1999-04-22 Schaeffler Waelzlager Ohg Valve timing control for internal combustion engine
DE19857762A1 (en) * 1998-12-15 2000-06-21 Schaeffler Waelzlager Ohg Automotive camshaft hydraulic adjustment mechanism has fewer components and is smaller than prior art
DE102008030057B4 (en) 2008-06-27 2018-01-25 Hilite Germany Gmbh Camshaft adjustment device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2159017A (en) * 1937-08-17 1939-05-23 Lewis P Threlkeld Control mechanism for internal combustion engines
DE3616234A1 (en) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Ag DEVICE FOR THE RELATIVE TURNING CHANGE OF TWO DRIVELY CONNECTED SHAFTS, ESPECIALLY BETWEEN A CRANKSHAFT AND CAMSHAFT BEARING IN A MACHINE HOUSING OF AN INTERNAL COMBUSTION ENGINE
EP0363600A1 (en) * 1988-10-13 1990-04-18 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Device for varying the angular position of a camshaft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811698A (en) * 1985-05-22 1989-03-14 Atsugi Motor Parts Company, Limited Valve timing adjusting mechanism for internal combustion engine for adjusting timing of intake valve and/or exhaust valve corresponding to engine operating conditions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2159017A (en) * 1937-08-17 1939-05-23 Lewis P Threlkeld Control mechanism for internal combustion engines
DE3616234A1 (en) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Ag DEVICE FOR THE RELATIVE TURNING CHANGE OF TWO DRIVELY CONNECTED SHAFTS, ESPECIALLY BETWEEN A CRANKSHAFT AND CAMSHAFT BEARING IN A MACHINE HOUSING OF AN INTERNAL COMBUSTION ENGINE
EP0363600A1 (en) * 1988-10-13 1990-04-18 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Device for varying the angular position of a camshaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008095459A1 (en) * 2007-02-08 2008-08-14 Ixetic Hückeswagen Gmbh Pump

Also Published As

Publication number Publication date
DE3929623A1 (en) 1991-03-07
DE59000108D1 (en) 1992-06-04
EP0416463B1 (en) 1992-04-29

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