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EP1118762A2 - Cylinder head for a valve controlled combustion engine - Google Patents

Cylinder head for a valve controlled combustion engine Download PDF

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Publication number
EP1118762A2
EP1118762A2 EP00125967A EP00125967A EP1118762A2 EP 1118762 A2 EP1118762 A2 EP 1118762A2 EP 00125967 A EP00125967 A EP 00125967A EP 00125967 A EP00125967 A EP 00125967A EP 1118762 A2 EP1118762 A2 EP 1118762A2
Authority
EP
European Patent Office
Prior art keywords
camshaft
bearing
cylinder head
bearing bush
adjuster
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.)
Ceased
Application number
EP00125967A
Other languages
German (de)
French (fr)
Other versions
EP1118762A3 (en
Inventor
Klaus Gröger
Dietmar Schwarzenthal
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1118762A2 publication Critical patent/EP1118762A2/en
Publication of EP1118762A3 publication Critical patent/EP1118762A3/en
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
    • 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
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0476—Camshaft bearings

Definitions

  • the invention relates to a cylinder head for a valve-controlled Internal combustion engine.
  • the bearing bush is provided on both ends with a collar that on the one hand for the axial bearing of the camshaft and on the other hand for fixing the Bearing bush in the storage chair is used.
  • the bearing bush has openings on its circumferential surface which face the pressure oil supply to a camshaft adjuster attached to the camshaft.
  • the camshaft 12 which is rotatably mounted in a cylinder head housing 10, has two Pairs of different cams 14 and 16, which are guided in openings 17 Cup tappet (not shown) the valve stroke and the opening and closing times of the Determine intake valves.
  • the camshaft 12 has a camshaft 12 driving on its end face Sprocket 18 on, which is part of the camshaft 12 using a Bolt 20 attached axial camshaft adjuster 22 is.
  • the structure of the Camshaft adjuster 22 is known from the prior art and is in the The following only in connection with the features essential to the invention described.
  • the cylinder head housing 10 has a plurality of bearing seats 24, 24 'in which the camshaft 12 is rotatably mounted. In the cylinder head housing 10 are further screw openings 26 for fastening the cylinder head housing 10 on Cylinder head provided.
  • the bearing bracket 24 'arranged next to the camshaft adjuster 22 takes one Bearing bush 30, which performs functions described in more detail below.
  • the bearing bush 30 has two collars on its end faces 32 and 34, the collar 32 having two radially arranged recesses 36 has, which correspond to the shoulders of the bearing chair 24 'that the Bearing bush 30 non-rotatably in the recess 38 for receiving the camshaft 12 is held.
  • the bearing bush 30 has two pairs on its radial bearing surface 40 of openings 42 and 44 on, via the pressure oil to an inner actuator 46 of Camshaft adjuster 22 can be performed.
  • the pressure oil is with the help of a Control valve 48 via pressure oil lines 50 and 52, formed in the camshaft 12 radially circumferential grooves 54 and 56 and arranged in the camshaft 12 Bores 58 and 60 fed to the two pressure chambers 62 and 64, with the help of them the inner actuator 46 and thus the position of the sprocket 18 with respect to the position the cam 14, 16 can be adjusted in the desired manner.
  • the bearing bush 30 continues to serve the axial bearing of the camshaft 12, because on one side of the Bearing chair 24 'of the camshaft adjuster 22 on the collar 34 of the bearing bush 30 and on the other side of the bearing block 24 'the collar 32 of the bearing bush 30 on one Collar 66 of the camshaft 12 is flush.
  • the bearings of the camshaft 12 are formed in two parts, the upper bearing half-shells, not shown, over Corresponding screw connections are connected to the storage chairs 24, 24 '.
  • the bore 68 provided in the bearing bush 30 is used for Camshaft bearing lubrication, while those arranged in the cylinder head housing 10 Oil channels 70 are provided for lubricating oil supply for the tappets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The cylinder head has a housing (10) containing bearing blocks (24,24') for the inlet or outlet camshaft (12) and a camshaft adjuster (22) for altering the position of the camshaft drive wheel relative to the camshaft rotation axis. At least one bearing block (24') has a reduced section to allow space for a cylinder head bolt. A bearing bush (30) that expands the reduced block width has holes for the oil supply to the camshaft adjuster.

Description

Die Erfindung bezieht sich auf einen Zylinderkopf für eine ventilgesteuerte Brennkraftmaschine.The invention relates to a cylinder head for a valve-controlled Internal combustion engine.

Aus der EP 0 829 620 A2 ist es bekannt, die die Ventile steuernden Nockenwellen mit Hilfe von Lagerbuchsen drehbar im Zylinderkopfgehäuse anzuordnen. Weiterhin ist aus der DE 41 43 153 Al bekannt, durch sogenannte Axial-Nockenwellenversteller die relative Winkellage zwischen Nockenwelle und dem die Nockenwelle antreibenden Kettenrad zu verändern, wodurch sich die Öffnungs- und Schließzeiten der Ventile der Brennkraftmaschine verändern.It is known from EP 0 829 620 A2 that the camshafts controlling the valves are also included Arranged rotatably in the cylinder head housing with the help of bearing bushes. Furthermore is off DE 41 43 153 Al known, the so-called axial camshaft adjuster relative angular position between the camshaft and the one driving the camshaft Change sprocket, which changes the opening and closing times of the valves of the Change internal combustion engine.

Es ist weiterhin bekannt, daß die Zylinderkopfgehäuse der Porsche- Motoren für die Lagerung der Nockenwellen Lagerstühle aufweisen, die aufgrund von Einschrauböffnungen für die Befestigung des Zylinderkopfgehäuses am Zylinderkopf eine abschnittsweise reduzierte Lagerstuhlbreite aufweisen.It is also known that the cylinder head housing of the Porsche engines for the Storage of the camshafts have bearing chairs that due to Screw-in openings for fastening the cylinder head housing to the cylinder head one have a reduced storage chair width in sections.

Es ist daher Aufgabe der Erfindung, für ein derartiges Zylinderkopfgehäuse eine kompakte Nockenwellenlagerung bereit zu stellen, über die gleichzeitig die Druckölversorgung für den an der Nockenwelle angeordneten Nockenwellenversteller erfolgen kann.It is therefore an object of the invention, for such a cylinder head housing to provide compact camshaft bearings over which the Pressure oil supply for the camshaft adjuster arranged on the camshaft can be done.

Die Lösung der Aufgabe erfolgt durch die im Anspruch 1 angegebenen Merkmale.The problem is solved by the features specified in claim 1.

Durch die in den Unteransprüchen angegebenen Merkmale sind weitere vorteilhafte Ausgestaltungen und Verbesserungen des erfindungsgemäßen Zylinderkopfes enthalten.Due to the features specified in the subclaims, further advantageous Refinements and improvements of the cylinder head according to the invention included.

Die Lagerbuchse ist an ihren beiden Stirnseiten jeweils mit einem Kragen versehen, der einerseits zur Axiallagerung der Nockenwelle und andererseits zur Fixierung der Lagerbuchse im Lagerstuhl dient. The bearing bush is provided on both ends with a collar that on the one hand for the axial bearing of the camshaft and on the other hand for fixing the Bearing bush in the storage chair is used.

Die Lagerbuchse weist auf ihrer Umfangsfläche Öffnungen auf, die der Druckölzuführung zu einem an der Nockenwelle befestigten Nockenwellenversteller dient.The bearing bush has openings on its circumferential surface which face the pressure oil supply to a camshaft adjuster attached to the camshaft.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher erläutert.

Fig. 1
zeigt das Zylinderkopfgehäuse einer Brennkraftmaschine mit einer Teildarstellung der Nockenwelle,
Fig. 2
eine Teildarstellung des Zylinderkopfgehäuses ohne Nockenwelle,
Fig. 3
eine Frontansicht der Laufbuchse,
Fig. 4
eine Seitenansicht der Laufbuchse teilweise im Schnitt,
Fig. 5
eine Schnittdarstellung entlang der Linie V in Fig. 4,
Fig. 6
eine Schnittdarstellung entlang der Linie VI in Fig. 4,
Fig. 7
eine Schnittdarstellung entlang der Linie VII in Fig. 4 und
Fig. 8
eine Perspektivansicht der Lagerbuchse.
An embodiment of the invention is shown in the drawing and is explained in more detail below.
Fig. 1
shows the cylinder head housing of an internal combustion engine with a partial representation of the camshaft,
Fig. 2
a partial view of the cylinder head housing without camshaft,
Fig. 3
a front view of the liner,
Fig. 4
a side view of the sleeve partially in section,
Fig. 5
3 shows a sectional illustration along the line V in FIG. 4,
Fig. 6
3 shows a sectional illustration along the line VI in FIG. 4,
Fig. 7
a sectional view taken along line VII in Fig. 4 and
Fig. 8
a perspective view of the bearing bush.

Beschreibung des AusführungsbeispielesDescription of the embodiment

Die in einem Zylinderkopfgehäuse 10 drehbar gelagerte Nockenwelle 12 weist zwei Paare unterschiedlicher Nocken 14 und 16 auf, die über in Öffnungen 17 geführte Tassenstößel (nicht dargestellt) den Ventilhub sowie die Öffnungs- und Schließzeiten der Einlaßventile bestimmen. The camshaft 12, which is rotatably mounted in a cylinder head housing 10, has two Pairs of different cams 14 and 16, which are guided in openings 17 Cup tappet (not shown) the valve stroke and the opening and closing times of the Determine intake valves.

Die Nockenwelle 12 weist an ihrer Stirnseite ein die Nockenwelle 12 antreibendes Kettenrad 18 auf, das Bestandteil eines an die Nockenwelle 12 mit Hilfe eines Schraubbolzens 20 befestigten Axial-Nockenwellenverstellers 22 ist. Der Aufbau des Nockenwellenverstellers 22 ist aus dem Stand der Technik bekannt und wird im Folgenden nur im Zusammenhang mit den für die Erfindung wesentlichen Merkmalen beschrieben. Das Zylinderkopfgehäuse 10 weist mehrere Lagerstühle 24, 24' auf, in denen die Nockenwelle 12 drehbar gelagert ist. Im Zylinderkopfgehäuse 10 sind weiterhin Einschrauböffnungen 26 für die Befestigung des Zylinderkopfgehäuses 10 am Zylinderkopf vorgesehen. Aufgrund der Bauraumverhältnisse im Zylinderkopfgehäuse 10 ist es erforderlich, die Lagerstühle 24, 24' im Bereich der Einschrauböffnungen 26 für die Zylinderkopfschrauben mit einer radialen Ausnehmung 28 zu versehen, damit die nicht dargestellten Zylinderkopfschrauben in die Einschrauböffnungen 26 eingesteckt und mit dem Zylinderkopf verschraubt werden können.The camshaft 12 has a camshaft 12 driving on its end face Sprocket 18 on, which is part of the camshaft 12 using a Bolt 20 attached axial camshaft adjuster 22 is. The structure of the Camshaft adjuster 22 is known from the prior art and is in the The following only in connection with the features essential to the invention described. The cylinder head housing 10 has a plurality of bearing seats 24, 24 'in which the camshaft 12 is rotatably mounted. In the cylinder head housing 10 are further screw openings 26 for fastening the cylinder head housing 10 on Cylinder head provided. Due to the space available in the cylinder head housing 10 it is necessary for the bearing seats 24, 24 'in the area of the screw openings 26 for to provide the cylinder head screws with a radial recess 28 so that the Not shown cylinder head screws inserted into the screw holes 26 and can be screwed to the cylinder head.

Der neben dem Nockenwellenversteller 22 angeordnete Lagerstuhl 24' nimmt eine Lagerbuchse 30 auf, die nachfolgend näher beschriebene Funktionen ausübt. Wie in den Figuren 3 bis 8 dargestellt, weist die Lagerbuchse 30 an ihren Stirnseiten zwei Kragen 32 und 34 auf, wobei der Kragen 32 zwei radial angeordnete Ausnehmungen 36 aufweist, die so mit den Schultern des Lagerstuhls 24' korrespondieren, daß die Lagerbuchse 30 verdrehsicher in der Ausnehmung 38 für die Aufnahme der Nockenwelle 12 gehalten ist. Auf ihrer radialen Auflagefläche 40 weist die Lagerbuchse 30 zwei Paare von Öffnungen 42 und 44 auf, über die Drucköl zu einem inneren Stellglied 46 des Nockenwellenverstellers 22 geführt werden kann. Das Drucköl wird mit Hilfe eines Steuerventils 48 über Druckölleitungen 50 und 52, in der Nockenwelle 12 ausgebildete radial umlaufende Nuten 54 und 56 und über in der Nockenwelle 12 angeordnete Bohrungen 58 und 60 den beiden Druckkammern 62 und 64 zugeführt, mit deren Hilfe das innere Stellglied 46 und damit die Lage des Kettenrads 18 in Bezug auf die Stellung der Nocken 14, 16 in gewünschter Weise verstellt werden kann. The bearing bracket 24 'arranged next to the camshaft adjuster 22 takes one Bearing bush 30, which performs functions described in more detail below. As in the 3 to 8 shown, the bearing bush 30 has two collars on its end faces 32 and 34, the collar 32 having two radially arranged recesses 36 has, which correspond to the shoulders of the bearing chair 24 'that the Bearing bush 30 non-rotatably in the recess 38 for receiving the camshaft 12 is held. The bearing bush 30 has two pairs on its radial bearing surface 40 of openings 42 and 44 on, via the pressure oil to an inner actuator 46 of Camshaft adjuster 22 can be performed. The pressure oil is with the help of a Control valve 48 via pressure oil lines 50 and 52, formed in the camshaft 12 radially circumferential grooves 54 and 56 and arranged in the camshaft 12 Bores 58 and 60 fed to the two pressure chambers 62 and 64, with the help of them the inner actuator 46 and thus the position of the sprocket 18 with respect to the position the cam 14, 16 can be adjusted in the desired manner.

Die im Lagerstuhl 24' angeordnete Lagerbuchse 30 bewirkt im Bereich der radialen Ausnehmung 28 des Lagerstuhls 24' eine Lagerstuhlverbreiterung, so daß an dieser, dicht neben dem Nockenwellenversteller 22 angeordneten Lagerstelle gleichzeitig die Druckölzuführung für den Nockenwellenversteller 22 erfolgen kann. Die Lagerbuchse 30 dient weiterhin der Axiallagerung der Nockenwelle 12, da auf der einen Seite des Lagerstuhls 24' der Nockenwellenversteller 22 am Kragen 34 der Lagerbuchse 30 und auf der anderen Seite des Lagerstuhls 24' der Kragen 32 der Lagerbuchse 30 an einem Kragen 66 der Nockenwelle 12 bündig anliegt. Die Lagerstellen der Nockenwelle 12 sind zweiteilig ausgebildet, wobei die nicht dargestellten oberen Lagerhalbschalen über entsprechende Schraubverbindungen mit den Lagerstühlen 24, 24' verbunden werden.The bearing bush 30 arranged in the bearing block 24 'acts in the radial area Recess 28 of the bearing bracket 24 'a widening of the bearing bracket, so that, arranged close to the camshaft adjuster 22 the bearing at the same time Pressure oil supply for the camshaft adjuster 22 can take place. The bearing bush 30 continues to serve the axial bearing of the camshaft 12, because on one side of the Bearing chair 24 'of the camshaft adjuster 22 on the collar 34 of the bearing bush 30 and on the other side of the bearing block 24 'the collar 32 of the bearing bush 30 on one Collar 66 of the camshaft 12 is flush. The bearings of the camshaft 12 are formed in two parts, the upper bearing half-shells, not shown, over Corresponding screw connections are connected to the storage chairs 24, 24 '.

Die in der Lagerbuchse 30 vorgesehene Bohrung 68 dient der Nockenwellen-Lagerschmierung, während die im Zylinderkopfgehäuse 10 angeordneten Ölkanäle 70 zur Schmierölversorgung für die Tassenstößel vorgesehen sind.The bore 68 provided in the bearing bush 30 is used for Camshaft bearing lubrication, while those arranged in the cylinder head housing 10 Oil channels 70 are provided for lubricating oil supply for the tappets.

Claims (3)

Zylinderkopf für eine ventilgesteuerte Brennkraftmaschine mit folgenden Merkmalen: ein Zylinderkopfgehäuse (10), in dem Lagerstühle (24, 24') für die Einlaß- oder Auslaßnockenwelle (12) angeordnet sind, an mindestens einer Nockenwelle (12) ist ein Nockenwellenversteller (22) vorgesehen, durch den die Lage des Antriebsrades (18) der Nockenwelle (12) relativ zur Drehachse der Nockenwelle (12) veränderbar ist, mindestens der neben dem Nockenwellenversteller (22) vorgesehene Lagerstuhl (24') für die Nockenwelle (12) weist einen Abschnitt auf, dessen Breite aufgrund einer Ausnehmung (28) für die Verschraubung des Zylinderkopfgehäuses (10) reduziert ist, in der neben dem Nockenwellenversteller (22) angeordneten Lagerstelle (24') ist eine Lagerbuchse (30) für die Nockenwelle (12) vorgesehen, dergestalt, daß der mit einer reduzierten Lagerstuhlbreite versehene Abschnitt der Lagerstelle (24') auf die eigentliche Lagerstuhlbreite erweitert ist, die Laufbuchse 30 weist Öffnungen (42, 44) für die Ölversorgung des Nockenwellenverstellers (22) auf. Cylinder head for a valve-controlled internal combustion engine with the following features: a cylinder head housing (10) in which bearing seats (24, 24 ') for the intake or exhaust camshaft (12) are arranged, A camshaft adjuster (22) is provided on at least one camshaft (12), by means of which the position of the drive wheel (18) of the camshaft (12) can be changed relative to the axis of rotation of the camshaft (12). at least the bearing bracket (24 ') for the camshaft (12) provided next to the camshaft adjuster (22) has a section whose width is reduced due to a recess (28) for the screwing of the cylinder head housing (10), A bearing bush (30) for the camshaft (12) is provided in the bearing point (24 ') arranged next to the camshaft adjuster (22), in such a way that the section of the bearing point (24') provided with a reduced bearing chair width is expanded to the actual bearing chair width , the bushing 30 has openings (42, 44) for the oil supply to the camshaft adjuster (22). Zylinderkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerbuchse (30) beidseitig einen Kragen (32, 34) aufweist, die der Axiallagerung der Nockenwelle (12) und der Lagerbuchse (30) dienen.Cylinder head according to claim 1, characterized in that the bearing bush (30) has on both sides a collar (32, 34) which supports the axial bearing of the camshaft (12) and serve the bearing bush (30). Zylinderkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mindestens ein Kragen (32) Ausnehmungen (36) aufweist, die mit den Schultern des Lagerstuhls (24') so zusammenwirken, daß die Lagerbuchse (30) verdrehsicher gehalten ist.Cylinder head according to claim 1 or 2, characterized in that at least one Collar (32) has recesses (36) with the shoulders of the storage chair (24 ') interact that the bearing bush (30) is held against rotation.
EP00125967A 2000-01-21 2000-11-28 Cylinder head for a valve controlled combustion engine Ceased EP1118762A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10002512A DE10002512A1 (en) 2000-01-21 2000-01-21 Cylinder head for a valve-controlled internal combustion engine
DE10002512 2000-01-21

Publications (2)

Publication Number Publication Date
EP1118762A2 true EP1118762A2 (en) 2001-07-25
EP1118762A3 EP1118762A3 (en) 2002-08-14

Family

ID=7628273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125967A Ceased EP1118762A3 (en) 2000-01-21 2000-11-28 Cylinder head for a valve controlled combustion engine

Country Status (3)

Country Link
US (1) US6439180B2 (en)
EP (1) EP1118762A3 (en)
DE (1) DE10002512A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064580A1 (en) 2011-11-04 2013-05-10 Hörmann Kg Ichtershausen Garage door handle for operating a garage door, as well as a side-opening garage door provided with same, more particularly a side-sectional door

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10135146A1 (en) 2001-07-19 2003-01-30 Porsche Ag Device for the relative change in the angle of rotation of a camshaft
DE102004043935B4 (en) * 2004-09-11 2016-10-20 Audi Ag Device in the cylinder head of a valve-controlled internal combustion engine
DE102004051424B4 (en) * 2004-10-22 2017-03-30 Schaeffler Technologies AG & Co. KG Device for adjusting the camshaft of an internal combustion engine and assembly tool
DE102008039038B4 (en) 2008-08-21 2021-01-28 Schaeffler Technologies AG & Co. KG Camshaft adjuster
DE202008018657U1 (en) 2008-08-21 2017-11-20 Schaeffler Technologies AG & Co. KG Phaser

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Publication number Priority date Publication date Assignee Title
DE4143153A1 (en) 1991-12-28 1993-07-01 Bosch Gmbh Robert HYDRAULIC CONTROL DEVICE
EP0829620A2 (en) 1996-09-13 1998-03-18 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Adjustable camshaft for a piston machine controlled by valves, in particular for an internal combustion engine

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DE4116944C2 (en) * 1991-05-24 1997-05-22 Daimler Benz Ag Cylinder head for a multi-cylinder internal combustion engine
US5522354A (en) * 1993-10-29 1996-06-04 Yamaha Hatsudoki Kabushiki Kaisha Valve mechanism for internal combustion engine
JP2924777B2 (en) * 1996-04-08 1999-07-26 トヨタ自動車株式会社 Variable valve timing mechanism for internal combustion engine
JPH10184323A (en) * 1996-12-26 1998-07-14 Yamaha Motor Co Ltd Four cycle engine
DE19747035A1 (en) * 1997-10-24 1999-04-29 Daimler Chrysler Ag Variable valve timing
DE19747244A1 (en) * 1997-10-27 1999-04-29 Schaeffler Waelzlager Kg Cylinder head for internal combustion engine
JP4036401B2 (en) * 1998-03-27 2008-01-23 ヤマハ発動機株式会社 4-cycle engine with variable valve timing system
JP3755312B2 (en) * 1998-09-30 2006-03-15 スズキ株式会社 Cam bearing structure of internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4143153A1 (en) 1991-12-28 1993-07-01 Bosch Gmbh Robert HYDRAULIC CONTROL DEVICE
EP0829620A2 (en) 1996-09-13 1998-03-18 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Adjustable camshaft for a piston machine controlled by valves, in particular for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064580A1 (en) 2011-11-04 2013-05-10 Hörmann Kg Ichtershausen Garage door handle for operating a garage door, as well as a side-opening garage door provided with same, more particularly a side-sectional door

Also Published As

Publication number Publication date
EP1118762A3 (en) 2002-08-14
DE10002512A1 (en) 2001-07-26
US6439180B2 (en) 2002-08-27
US20010009146A1 (en) 2001-07-26

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