EP0276372A1 - Camshaft in an internal-combustion engine - Google Patents

Camshaft in an internal-combustion engine Download PDF

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Publication number
EP0276372A1
EP0276372A1 EP87115410A EP87115410A EP0276372A1 EP 0276372 A1 EP0276372 A1 EP 0276372A1 EP 87115410 A EP87115410 A EP 87115410A EP 87115410 A EP87115410 A EP 87115410A EP 0276372 A1 EP0276372 A1 EP 0276372A1
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EP
European Patent Office
Prior art keywords
camshaft
housing
cylinder head
holder
bearing housing
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.)
Granted
Application number
EP87115410A
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German (de)
French (fr)
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EP0276372B1 (en
Inventor
Gerhard Koller
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Filing date
Publication date
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Publication of EP0276372A1 publication Critical patent/EP0276372A1/en
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Publication of EP0276372B1 publication Critical patent/EP0276372B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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

Definitions

  • the invention relates to a camshaft for an internal combustion engine, which is used to actuate valves and is arranged in bearings of housings of the internal combustion engine formed by a cylinder head and a camshaft bearing housing.
  • a known camshaft (FR-PS 1 511 082) is arranged in bearings which are represented by housings of an internal combustion engine which are assembled in one plane and are designed as a cylinder head and camshaft bearing housing.
  • the camshaft bearing housing which has the shape of a hood, is held on the cylinder head by means of screws. If the camshaft bearing housing is released, several tappets of valves under spring force move the camshaft into a position outside the design position.
  • the object of the invention is to take such precautions on a camshaft that their assembly in bearings which are formed by a camshaft bearing housing and a cylinder head is simple.
  • the holder holds the camshaft in a housing - cylinder head or camshaft bearing housing - in a preassembled position, which makes it easier to connect the housings forming the camshaft bearings because the camshaft is already in one of the design positions similar position. It is also ensured by the holder that when a housing, for example the camshaft bearing housing, is released, the camshaft remains in a position which is easier to handle.
  • the brackets can be used to pre-adjust the two housings - cylinder head and camshaft bearing housing - relative to one another.
  • the holders are simple components and can be attached to one of the two housings without much effort
  • a camshaft 1 for actuating valves, not shown, held under spring tension, is arranged in bearings 2, 3, 4, which are formed by the housing of an internal combustion engine.
  • the housings are a cylinder head 5 and a hood-shaped camshaft bearing housing 6, which are assembled in a parting plane AA running perpendicular to the cylinder axis (not shown), each bearing comprising 2 bearing halves 7, 8, which fit into the cylinder head 5 or the camshaft bearing housing 6 are integrated.
  • the camshaft housing 6 is held on the cylinder head 5 by means of several screws 9.
  • the camshaft 1 cooperates with a holder 10 in such a way that it forms a preassembled structural unit with the cylinder head 5.
  • the holder 10 has a ring-like support section 11 which surrounds a part of the shaft region 12 of the camshaft 1 at a short distance, ie the radius R1 of the support section 11 is larger than the radius R2 of the camshaft 1.
  • the holder 10 is with a mounting flange 13th provided, which extends laterally from the camshaft 1 - parallel to the plane AA - and is held on the cylinder head 5 by means of a screw 14.
  • two holders 10 are provided over the length of the camshaft 1, which are identical in construction.
  • camshaft housing 6 If the camshaft housing 6 is detached from the cylinder head 5, the camshaft 1 assumes position B due to the valves held under spring tension; it remains in an easy-to-use basic position.
  • the holder 16 surrounds the shaft region 12 of the camshaft 1 with a half-shell-shaped support section 17, it being provided with fastening flanges 18, 19 which extend on both sides of the camshaft 1 - parallel to the plane A-A.
  • the mounting flanges 18, 19 are held on the camshaft bearing housing 6 with screws 20, 21.
  • the camshaft 1 forms a preassembled unit with the camshaft housing 1 through the holder 16, the camshaft 1 having the position C.
  • camshaft 1 can also cooperate with a holder 22, which is represented by a straight cylindrical pin 23.
  • the pin 23 extends obliquely to the plane A-A and projects beyond the camshaft 1, wherein it is fixed in a bore 24 in the cylinder head 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Diese Nockenwelle (1) ist in Lagern (2,3,4) angeordnet, die durch einen Zylinderkopf (5) und ein Nockenwellenlagergehäuse (6) gebildet werden. Die Nockenwelle (1) ist mit Haltern (10,16,22) entweder am Zylinderkopf (5) oder am Nockenwellenlagergehäuse (6) befestigt, d.h. sie stellt mit einem der beiden Gehäuse der Brennkraftmaschine eine vormontierte Baueinheit dar. Dadurch ist die Montage der Nockenwelle einfacher.This camshaft (1) is arranged in bearings (2, 3, 4) which are formed by a cylinder head (5) and a camshaft bearing housing (6). The camshaft (1) is fastened with brackets (10, 16, 22) either to the cylinder head (5) or to the camshaft bearing housing (6), i.e. with one of the two housings of the internal combustion engine, it represents a preassembled structural unit. This makes assembly of the camshaft easier.

Description

Die Erfindung betrifft eine Nockenwelle für eine Brennkraftmaschine, die zur Betätigung von Ventilen dient und in Lagern von durch einen Zylinder­kopf und ein Nockenwellenlagergehäuse gebildeten Gehäusen der Brenn­kraftmaschine angeordnet ist.The invention relates to a camshaft for an internal combustion engine, which is used to actuate valves and is arranged in bearings of housings of the internal combustion engine formed by a cylinder head and a camshaft bearing housing.

Eine bekannte Nockenwelle (FR-PS 1 511 082) ist in Lagern angeordnet, die durch in einer Ebene zusammengesetzten, als Zylinderkopf und Nocken­wellenlagergehäuse ausgebildeten Gehäusen einer Brennkraftmaschine dargestellt sind. Das Nockenwellenlagergehäuse, es hat die Form einer Haube, ist unter Vermittlung von Schrauben am Zylinderkopf gehalten. Wird das Nockenwellenlagergehäuse gelöst, so bewegen mehrere, unter Federkraft stehende Stößel von Ventilen die Nockenwelle in eine außerhalb der Konstruktionslage liegende Stellung.A known camshaft (FR-PS 1 511 082) is arranged in bearings which are represented by housings of an internal combustion engine which are assembled in one plane and are designed as a cylinder head and camshaft bearing housing. The camshaft bearing housing, which has the shape of a hood, is held on the cylinder head by means of screws. If the camshaft bearing housing is released, several tappets of valves under spring force move the camshaft into a position outside the design position.

Aufgabe der Erfindung ist es, an einer Nockenwelle solche Vorkehrungen zu treffen, daß ihre Montage in Lagern, die durch ein Nockenwellenlagergehäuse und einen Zylinderkopf gebildet sind, einfach ist.The object of the invention is to take such precautions on a camshaft that their assembly in bearings which are formed by a camshaft bearing housing and a cylinder head is simple.

Erfindungsgemäß wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen enthalten.According to the invention, this object is achieved by the characterizing features of claim 1. Further features embodying the invention are contained in the subclaims.

Die mit der Erfindung hauptsächlich erzielten Vorteile sind darin zu sehen, daß der Halter die Nockenewelle in einem Gehäuse - Zylinderkopf oder Nockenwellenlagergehäuse - in einer vormontierten Lage hält, wodurch das Verbinden der die Nockenwellenlager bildenden Gehäuse einfacher ist, weil die Nockenwelle bereits in einer der Konstruktionslage ähnlichen Stellung ist. Ebenso ist durch den Halter sichergestellt, daß beim Lösen eines Gehäuses, beispielsweise des Nockenwellenlagergehäuses, die Nockenwelle in einer gut handhabberen Lage verbleibt.The main advantages achieved with the invention are that the holder holds the camshaft in a housing - cylinder head or camshaft bearing housing - in a preassembled position, which makes it easier to connect the housings forming the camshaft bearings because the camshaft is already in one of the design positions similar position. It is also ensured by the holder that when a housing, for example the camshaft bearing housing, is released, the camshaft remains in a position which is easier to handle.

Ist die Brennkraftmaschine mit parallelen Nockenwellen ausgestattet, die pro Zylinder vier Ventile betätigt, so können durch die Halter neben der leichteren Montage die beiden Gehäuse - Zylinderkopf und Nockenwellen­lagergehäuse - diese Nockenwellen relativ zueinander vorjustiert werden. Die Halter sind einfache Bauteile und können an einem der beiden Gehäuse ohne größeren Aufwand befestigt werdenIf the internal combustion engine is equipped with parallel camshafts, which actuates four valves per cylinder, in addition to easier mounting, the brackets can be used to pre-adjust the two housings - cylinder head and camshaft bearing housing - relative to one another. The holders are simple components and can be attached to one of the two housings without much effort

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher beschrieben sind. Es zeigt.

  • Fig. 1 einen Querschnitt einer Brennkraftmaschine im Bereich einer Nockenwelle,
  • Fig. 2 einen Schnitt nach der Linie II-II der Fig. 1,
  • Fig. 3 einen Schnitt nach der Linie III-III der Fig. 1,
  • Fig. 4 eine Ansicht ähnlich Fig. 1 mit einer anderen Ausführungsform,
  • Fig. 5 eine Ansicht ähnlich Fig. 1 mit einer weiteren Ausführungsform.
In the drawing, embodiments of the invention are shown, which are described in more detail below. It shows.
  • 1 shows a cross section of an internal combustion engine in the region of a camshaft,
  • 2 shows a section along the line II-II of FIG. 1,
  • 3 shows a section along the line III-III of FIG. 1,
  • 4 is a view similar to FIG. 1 with another embodiment,
  • Fig. 5 is a view similar to Fig. 1 with another embodiment.

Eine Nockenwelle 1 zur Betätigung von nicht gezeigten, unter Federspannung gehaltenen, Ventilen ist in Lagern 2, 3, 4 angeordnet, die durch Gehäuse einer Brennkraftmaschine gebildet werden. Die Gehäuse sind im Ausführungs­beispiel ein Zylinderkopf 5 und ein haubenförmiges Nockenwellenlagergehäuse 6, die in iener senkrecht zur Zylinderachse (nicht dargestellt) ver­laufenden Trennebene A-A zusammengesetzt sind, wobei jedes Lager 2 Lagerhälften 7, 8 umfasst, die in den Zylinderkopf 5 bzw. das Nocken­wellenlagergehäuse 6 integriert sind. Das Nockenwellengehäuse 6 ist am Zylinderkopf 5 mittels mehrer Schrauben 9 gehalten.A camshaft 1 for actuating valves, not shown, held under spring tension, is arranged in bearings 2, 3, 4, which are formed by the housing of an internal combustion engine. In the exemplary embodiment, the housings are a cylinder head 5 and a hood-shaped camshaft bearing housing 6, which are assembled in a parting plane AA running perpendicular to the cylinder axis (not shown), each bearing comprising 2 bearing halves 7, 8, which fit into the cylinder head 5 or the camshaft bearing housing 6 are integrated. The camshaft housing 6 is held on the cylinder head 5 by means of several screws 9.

Die Nockenwelle 1 wirkt mit einem Halter 10 zusammen, dergestalt, daß sie mit dem Zylinderkopf 5 eine vormontierte Baueinheit bildet. Der Halter 10 besitzt einen ringartigen Stützabschnitt 11, der einen Teil des Wellen­bereichs 12 der Nockenwelle 1 mit geringem Abstand umgibt, d.h. der Radius R₁ des Stützabschnitts 11 ist größer als der Radius R₂ der Nockenwelle 1. Darüber hinaus ist der Halter 10 mit einem Befestigungsflansch 13 versehen, der sich seitlich von der Nockenwelle 1 erstreckt - parallel zur Ebene A-­A - und unter Vermittlung einer Schraube 14 am Zylinderkopf 5 gehalten ist.The camshaft 1 cooperates with a holder 10 in such a way that it forms a preassembled structural unit with the cylinder head 5. The holder 10 has a ring-like support section 11 which surrounds a part of the shaft region 12 of the camshaft 1 at a short distance, ie the radius R₁ of the support section 11 is larger than the radius R₂ of the camshaft 1. In addition, the holder 10 is with a mounting flange 13th provided, which extends laterally from the camshaft 1 - parallel to the plane AA - and is held on the cylinder head 5 by means of a screw 14.

Zur Versteifung des Halters 10 ist dieser im Bereich des Stützabschnitts 11 mit einer U-förmigen Profilierung 15 versehen (Fig. 3).To stiffen the holder 10, this is provided in the region of the support section 11 with a U-shaped profile 15 (FIG. 3).

Gemäß Fig. 2 sind über die Länge der Nockenwelle 1 gesehen zwei Halter 10 vorgesehen, die baugleich sind.2, two holders 10 are provided over the length of the camshaft 1, which are identical in construction.

Wird das Nockenwellengehäuse 6 vom Zylinderkopf 5 gelöst, nimmt die Nockenwelle 1 aufgrund der unter Federspannung gehaltenen Ventile die Stellung B ein; sie verbleibt in einer leicht handhabbaren Grundstellung.If the camshaft housing 6 is detached from the cylinder head 5, the camshaft 1 assumes position B due to the valves held under spring tension; it remains in an easy-to-use basic position.

Nach Fig. 4 umgibt der Halter 16 mit einem halbschalenförmigen Stütz­abschnitt 17 den Wellenbereich 12 der Nockenwelle 1, wobei er mit Be­festigungsflanschen 18, 19 versehen ist, die sich beiderseits der Nocken­welle 1 - parallel zur Ebene A-A - erstrecken. Die Befestigungsflansche 18, 19 sind mit Schrauben 20, 21 am Nockenwellenlagergehäuse 6 gehalten.4, the holder 16 surrounds the shaft region 12 of the camshaft 1 with a half-shell-shaped support section 17, it being provided with fastening flanges 18, 19 which extend on both sides of the camshaft 1 - parallel to the plane A-A. The mounting flanges 18, 19 are held on the camshaft bearing housing 6 with screws 20, 21.

Die Nockenwelle 1 bildet durch den Halter 16 mit dem Nockenwellengehäuse 1 eine vormontierte Einheit, wobei die Nockenwelle 1 die Stellung C aufweist.The camshaft 1 forms a preassembled unit with the camshaft housing 1 through the holder 16, the camshaft 1 having the position C.

Schließlich kann die Nockenwelle 1 auch mit einem Halter 22 zusammenwirken, der durch einen geraden zylindrischen Stift 23 dargestellt ist. Der Stift 23 verläuft schräg zur Ebene A-A und überragt die Nockenwelle 1, wobei er in einer Bohrung 24 des Zylinderkopfs 5 festgestzt ist.Finally, the camshaft 1 can also cooperate with a holder 22, which is represented by a straight cylindrical pin 23. The pin 23 extends obliquely to the plane A-A and projects beyond the camshaft 1, wherein it is fixed in a bore 24 in the cylinder head 5.

Claims (8)

1. Nockenwelle für eine Brennkraftmaschine, die zur Betätigung von Ventilen dient und in Lagern von durch einen Zylinderkopf und ein Nockenwellenlager-­gehäuse gebildeten Gehäuse der Brennkraftmaschine angeordnet ist, dadurch gekennzeichnet, daß die Nockenwelle (1) mit einem Gehäuse (Zylinderkopf 5 oder Nockenwellenlagergehäuse 6) eine unabhängig von den Lagern (2, 3, 4) vormontierte Baueinheit bildet, wobei die Nockenwelle (1) mittels wenigstens einem Halter (10, 16, 22) mit dem Gehäuse (Zylinderkopf 5 oder Nockenwellenlagergehäuse 6) verbunden ist.1. Camshaft for an internal combustion engine which is used to actuate valves and is arranged in bearings of the internal combustion engine housing formed by a cylinder head and a camshaft bearing housing, characterized in that the camshaft (1) with a housing (cylinder head 5 or camshaft bearing housing 6 ) forms a pre-assembled unit independent of the bearings (2, 3, 4), the camshaft (1) being connected to the housing (cylinder head 5 or camshaft bearing housing 6) by means of at least one holder (10, 16, 22). 2. Nockenwelle nach Anspruch 1, dadurch gekennzeichnet, daß der Halter (10) mit einem ringartigen Stützabschnitt (11) einen Wellenbereich (12) der Nockenwelle (1), vorzugsweise über einen Teilbereich und mit geringem Abstand, umgibt.2. Camshaft according to claim 1, characterized in that the holder (10) with a ring-like support section (11) surrounds a shaft area (12) of the camshaft (1), preferably over a partial area and at a short distance. 3. Nockenwelle nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Halter (10) einen Befestigungsflansch (13) aufweist, der sich seitlich der Nockenwelle (1) erstreckt und unter Vermittlung von einer Schraube (14) am Gehäuse (Zylinderkopf 5 oder Nockenwellenlagergehäuse 6) gehalten ist.3. Camshaft according to claims 1 and 2, characterized in that the holder (10) has a mounting flange (13) which extends to the side of the camshaft (1) and with the intermediation of a screw (14) on the housing (cylinder head 5 or Camshaft bearing housing 6) is held. 4. Nockenwelle nach den Ansprüchen 2 und 3, dadurch gekennzeichet, daß der Halter (10) zur Versteifung zumindest im Bereich des Stützabschnitts (11) mit einer Querschnittsprofilierung (15) versehen ist.4. Camshaft according to claims 2 and 3, characterized in that the holder (10) is provided with a cross-sectional profile (15) for stiffening at least in the region of the support section (11). 5. Nockenwelle nach Anspruch 2, dadurch gekennzeichnet, daß der Stütz­abschnitt (17) des Halters (16) halbschalenförmig den Wellenbereich (12) der Nockenwelle (1) umgibt und an beiderseits der Nockenewelle (1) verlaufenden Befestigungsflanschen (18, 19) unter Vermittulung von Schrauben (20, 21) am Gehäuse (Zylinderkopf 5 oder Nockenwellenlagergehäuse 6) befestigt ist.5. Camshaft according to claim 2, characterized in that the support section (17) of the holder (16) surrounds the shaft area (12) of the camshaft (1) in a half-shell shape and on both sides of the camshaft (1) extending mounting flanges (18, 19) with mediation by screws (20, 21) on the housing (cylinder head 5 or camshaft bearing housing 6). 6. Nockenwelle nach Anspruch 1, dadurch gekennzeichnet, daß der Halter (22) ein zylindrischer Stift (23) ist, der die Nockenwelle (1) überragt.6. Camshaft according to claim 1, characterized in that the holder (22) is a cylindrical pin (23) which projects beyond the camshaft (1). 7. Nockenwelle nach Anspruch 6, dadurch gekennzeichnet, daß der Stift (23) in einer Bohrung (24) des Gehäuses (Zylinderkopf 5 oder Nockenwellen­lagergehäuse 6) festgesetzt ist.7. Camshaft according to claim 6, characterized in that the pin (23) in a bore (24) of the housing (cylinder head 5 or camshaft bearing housing 6) is fixed. 8. Nockenwelle nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß über die Länge der Nockenwelle (1) verteilt wenigstens zwei Halter (10, 16, 22) vorgesehen sind.8. Camshaft according to one or more of the preceding claims, characterized in that distributed over the length of the camshaft (1) at least two holders (10, 16, 22) are provided.
EP87115410A 1986-12-20 1987-10-21 Camshaft in an internal-combustion engine Expired - Lifetime EP0276372B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863643673 DE3643673A1 (en) 1986-12-20 1986-12-20 CAMSHAFT FOR AN INTERNAL COMBUSTION ENGINE
DE3643673 1986-12-20

Publications (2)

Publication Number Publication Date
EP0276372A1 true EP0276372A1 (en) 1988-08-03
EP0276372B1 EP0276372B1 (en) 1990-09-26

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ID=6316712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115410A Expired - Lifetime EP0276372B1 (en) 1986-12-20 1987-10-21 Camshaft in an internal-combustion engine

Country Status (5)

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US (1) US4821693A (en)
EP (1) EP0276372B1 (en)
JP (1) JP2654041B2 (en)
DE (2) DE3643673A1 (en)
ES (1) ES2018527B3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119776A (en) * 1991-09-30 1992-06-09 Chrysler Corporation Compact bearing cap for overhead camshaft
FR2915512B1 (en) * 2007-04-30 2011-08-19 Timken Co ARBOR ASSEMBLY AND A SUPPORT AND METHOD FOR MOUNTING THE SAME
DE102008007091B4 (en) * 2008-01-31 2010-06-24 Polytec Automotive Gmbh & Co. Kg camshafts module
DE102009009664A1 (en) 2009-02-19 2010-08-26 Mahle International Gmbh camshaft
DE102013113824A1 (en) * 2013-12-11 2015-06-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for mounting a camshaft

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB558779A (en) * 1943-05-19 1944-01-20 Harold Raymond Morgan Improvements in combustion chambers and overhead valve gear in internal combustion engines
FR1217835A (en) * 1958-12-10 1960-05-05 Simca Automobiles Sa Improvements to overhead camshaft engines
FR1511082A (en) * 1966-12-15 1968-01-26 Peugeot New arrangement of the camshaft on a heat engine or compressor and resulting machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840314A (en) * 1929-10-22 1932-01-12 Gerard Paul Valve actuating mechanism for internal combustion engines
JPS5325711A (en) * 1976-08-20 1978-03-09 Toyota Motor Corp Cam shaft bearing structure for engine
DE3217203A1 (en) * 1981-05-15 1982-12-02 Honda Giken Kogyo K.K., Tokyo VARIABLE VALVE CONTROL
SU1044801A1 (en) * 1981-11-26 1983-09-30 Pisotskij Polikarp Z Valve gear
JPS5967509U (en) * 1982-10-27 1984-05-08 本田技研工業株式会社 Camshaft bearing device in internal combustion engine
JPS5999149U (en) * 1982-12-23 1984-07-04 トヨタ自動車株式会社 cylinder head of internal combustion engine
DE8503825U1 (en) * 1985-02-12 1986-06-05 Johnson, Edward, West Harford Cylinder head for internal combustion engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB558779A (en) * 1943-05-19 1944-01-20 Harold Raymond Morgan Improvements in combustion chambers and overhead valve gear in internal combustion engines
FR1217835A (en) * 1958-12-10 1960-05-05 Simca Automobiles Sa Improvements to overhead camshaft engines
FR1511082A (en) * 1966-12-15 1968-01-26 Peugeot New arrangement of the camshaft on a heat engine or compressor and resulting machine

Also Published As

Publication number Publication date
DE3643673C2 (en) 1990-04-19
DE3643673A1 (en) 1988-06-30
ES2018527B3 (en) 1991-04-16
JPS63162909A (en) 1988-07-06
DE3765245D1 (en) 1990-10-31
JP2654041B2 (en) 1997-09-17
US4821693A (en) 1989-04-18
EP0276372B1 (en) 1990-09-26

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