EP0416463B1 - 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
EP0416463B1
EP0416463B1 EP90116637A EP90116637A EP0416463B1 EP 0416463 B1 EP0416463 B1 EP 0416463B1 EP 90116637 A EP90116637 A EP 90116637A EP 90116637 A EP90116637 A EP 90116637A EP 0416463 B1 EP0416463 B1 EP 0416463B1
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EP
European Patent Office
Prior art keywords
pump
combustion engine
internal combustion
housing cover
camshaft
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
EP90116637A
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German (de)
French (fr)
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EP0416463A1 (en
Inventor
Josef Thoma
Uwe Hoyer
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.)
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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Expired - Lifetime legal-status Critical Current

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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.
  • An internal combustion engine equipped in this way is known, for example, from EP-B-0 245 791 / DE 36 16 234.
  • the linear motor proposed here as a hydraulic motor is in hydraulic connection with a pump which is arranged separately from the internal combustion engine.
  • a hydraulic pump arranged on the internal combustion engine for supplying a hydraulic motor which serves to adjust the angle of rotation of a camshaft has been proposed in the unpublished EP-A-0 363 600 / DE 38 34 857.
  • the hydraulic pump driven by a first camshaft and the hydraulic motor cooperating with a second, adjustable camshaft are each designed in the vane type and are structurally arranged in a housing separate from the internal combustion engine.
  • 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 DE-A-36 16 234 - can be combined in a structurally simple manner with an efficient pump in a small installation space.
  • 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 inlet camshaft 2 is assigned a device 4 for the relative rotation angle adjustment of the inlet 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 DE-A-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 clock 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)

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.

Eine derart ausgerüstete Brennkraftmaschine ist beispielsweise aus der EP-B-0 245 791/DE 36 16 234 bekannt. Der hierbei als Hydromotor vorgeschlagene Linearmotor steht in hydraulischer Verbindung mit einer Pumpe, die von der Brennkraftmaschine gesondert angeordnet ist. Dagegen ist eine an der Brennkraftmaschine angeordnete Hydropumpe zur Versorgung eines der Drehwinkelverstellung einer Nockenwelle dienenden Hydromotors in der nicht vorveröffentlichten EP-A-0 363 600/DE 38 34 857 vorgeschlagen worden. Hierbei sind die von einer ersten Nockenwelle angetriebene Hydropumpe und der mit einer zweiten, verstellbaren Nockenwelle zusammenwirkende Hydromotor jeweils in Flügelzellenbauart ausgeführt und baulich in einem von der Brennkraftmaschine gesondertern Gehäuse angeordnet.An internal combustion engine equipped in this way is known, for example, from EP-B-0 245 791 / DE 36 16 234. The linear motor proposed here as a hydraulic motor is in hydraulic connection with a pump which is arranged separately from the internal combustion engine. In contrast, a hydraulic pump arranged on the internal combustion engine for supplying a hydraulic motor which serves to adjust the angle of rotation of a camshaft has been proposed in the unpublished EP-A-0 363 600 / DE 38 34 857. Here, the hydraulic pump driven by a first camshaft and the hydraulic motor cooperating with a second, adjustable camshaft are each designed in the vane type and are structurally arranged in a housing separate from the internal combustion engine.

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.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 DE-A- 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 DE-A-36 16 234 - can be combined in a structurally simple manner with an efficient pump in a small installation space.

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 DE-A- 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 inlet camshaft 2 is assigned a device 4 for the relative rotation angle adjustment of the inlet 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 DE-A-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 clock 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. An internal combustion engine with camshafts and with a mechanism (4) for the relative rotation angle adjustment of one of the camshafts (2) to a drive wheel (5),
- in which the mechanism (4) comprises, as actuating arrangement (7),a hydro-motor (9) which
- is in hydraulic connection with a pump (10,25), characterised in that
- the pump (10,25) is arranged so as to be structurally separate from the hydro-motor (9) on a detachably constructed housing cover (8,23) of the internal combustion engine (1) and to be driven by the other camshaft (3), and
- the housing cover (8,23) is provided with means (recess 12, slide ring 24) for the drive arrangement of the pump (10,25) with the other camshaft (outlet camshaft 3).
2. An internal combustion engine according to Claim 1, characterised in that
- the housing cover (8) has means comprising a recess (12) for the arrangement of the pump (10) over its outer contour (11), in which
- the pump, over a part of its outer contour, with a part of the recess (12) in the housing cover (8), defines a chamber (13) for pressure oil conveyed by the pump (10).
3. An internal combustion engine according to Claim 2, characterised in that the pressure oil chamber (13) is connected with a control chamber (16) of the hydro-motor (cylinder/piston unit 9) via ducts (15) which are integrated in the housing cover (8) and are connected with a regulating arrangement (time valve 14 which is adapted to be regulated).
4. An internal combustion engine according to Claims 2 and 3,
characterised in that
- the pump (10) is arranged so as to be secured in the recess (12) of the housing cover (8) by means of a locking cover (17), and
- at least in one of the covers (8 or, respectively, 17), a bearing (19) is arranged for a pump element (shaft 21) which is in driving connection with the other camshaft (3).
5. An internal combustion engine according to Claim 4,
characterised in that
- bearings (19) provided in the locking cover (17) and housing cover (8) serve for the arrangement of a shaft (21) carrying an eccentric (20) of an eccentric radial piston pump (10), in which
- the shaft (21) is connected, so as to be fast with respect to driving, with the other camshaft (3) by means of a plug arrangement (22).
6. An internal combustion engine according to Claim 4,
characterised in that the bearing arranged in the housing cover serves for the arrangement of a shaft, connected in one piece with the other camshaft, for the eccentric of an eccentric radial piston pump.
7. An internal combustion engine according to Claim 1,
characterised in that
- the housing cover (23) has means comprising a fixed slide ring (24) of a radial piston pump (25) which is acted upon internally, which slide ring is arranged eccentrically to the other camshaft (3),
- the rotor (26) of which radial piston pump is arranged, so as to be fast with respect to rotation with the piston (27) and guided so as to be movable radially on the camshaft (3).
8. An internal combustion engine according to Claim 7,
characterised in that
- a pin (28) which is fixedly arranged in the housing cover (23) engages so as to seal in a sliding manner in a bore (29) constructed centrally in the rotor (26), and
- has blind-end bores (30,31), arranged from both ends, with canals to the pistons (27),
in which
- the blind-end bore (30) on the suction side communicates with a lubricating oil canal (32) arranged in the other camshaft (3), and
- the blind-end bore (31) on the pressure side communicates with a pressure line (33) integrated in the housing cover (23).
9. An internal combustion engine according to one of more of Claims 1 to 8,
characterised in that a pressure reservoir, communicating with 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
DE3929623A DE3929623A1 (en) 1989-09-06 1989-09-06 INTERNAL COMBUSTION ENGINE WITH CAMSHAFT AND A TURNING ANGLE ADJUSTMENT
DE3929623 1989-09-06

Publications (2)

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

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582846A1 (en) * 1992-08-13 1994-02-16 Bayerische Motoren Werke Aktiengesellschaft Internal combustion piston engine with gas exchange valves per cylinder
EP0863297A1 (en) 1997-03-03 1998-09-09 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Variable timing device for independent intake and exhaust camshafts in an internal combustion engine

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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
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
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
DE112008000080A5 (en) * 2007-02-08 2009-09-17 Ixetic Hückeswagen Gmbh pump
DE102008030057B4 (en) 2008-06-27 2018-01-25 Hilite Germany Gmbh Camshaft adjustment device

Family Cites Families (4)

* 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
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
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
DE58901942D1 (en) * 1988-10-13 1992-09-03 Bayerische Motoren Werke Ag DEVICE FOR ANGLE ADJUSTMENT OF A CAMSHAFT.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582846A1 (en) * 1992-08-13 1994-02-16 Bayerische Motoren Werke Aktiengesellschaft Internal combustion piston engine with gas exchange valves per cylinder
EP0863297A1 (en) 1997-03-03 1998-09-09 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Variable timing device for independent intake and exhaust camshafts in an internal combustion engine

Also Published As

Publication number Publication date
EP0416463A1 (en) 1991-03-13
DE3929623A1 (en) 1991-03-07
DE59000108D1 (en) 1992-06-04

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