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EP0098180B1 - Lagerdeckel für die obenliegende Nockenwelle einer Brennkraftmaschine und entsprechende Maschine - Google Patents

Lagerdeckel für die obenliegende Nockenwelle einer Brennkraftmaschine und entsprechende Maschine Download PDF

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Publication number
EP0098180B1
EP0098180B1 EP83401085A EP83401085A EP0098180B1 EP 0098180 B1 EP0098180 B1 EP 0098180B1 EP 83401085 A EP83401085 A EP 83401085A EP 83401085 A EP83401085 A EP 83401085A EP 0098180 B1 EP0098180 B1 EP 0098180B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
orifice
engine
bearing cap
bolts
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
Application number
EP83401085A
Other languages
English (en)
French (fr)
Other versions
EP0098180A1 (de
Inventor
Gérard Bortolussi
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0098180A1 publication Critical patent/EP0098180A1/de
Application granted granted Critical
Publication of EP0098180B1 publication Critical patent/EP0098180B1/de
Expired 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]

Definitions

  • the invention relates to a bearing cap for an internal combustion engine of the type comprising at least one overhead camshaft journalling in bearings, one half of which is formed in a cylinder head fixed by screws on the cylinder block and the l The other half is formed in caps connected by screws to the cylinder head.
  • the invention proposes to remedy these drawbacks.
  • a bearing cap for an internal combustion engine of the aforementioned type characterized in that it comprises an orifice located between the camshaft and one of its fixing screws on the cylinder head, this orifice being intended for the passage of a cylinder head screw.
  • the orifice is tapped for the screwing of a sealed cover.
  • each bearing cap is common to the two shafts, comprises between them a single central hole for the passage of a fixing screw, and has a passage orifice a cylinder head screw between each camshaft and this central hole.
  • the invention also relates to an internal combustion engine of the aforementioned type, fitted with bearing caps as defined above.
  • the camshaft 5 controls, by means of pushers 9, exhaust valves 10, at a rate of two per cylinder, while the camshaft 4 controls, by means of pushers 11, inlet valves 12, also at the rate of two per cylinder.
  • the pushers 9 and 11 have been shown diagrammatically by their axes in FIG. 1.
  • the pushers 9 and 11 slide in bores 13, 14 formed in the cylinder head. Their axes X-X and Y-Y converge towards the cylinder block, the two shafts 4 and 5 being located near each lateral edge of the cylinder head.
  • the invention thus makes it possible to reduce the angle formed by the axes of the intake and exhaust valves, which reduces the bulk, simplifies the shape of the combustion chamber in the cylinders and makes it possible to obtain high values. compression compression ratio without the need for complex piston shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (6)

1. Lagerdeckel für eine Brennkraftmaschine mit mindestens einer obenliegenden Nockenwelle (4, 5), die sich in Lagern (6, 7) dreht, von denen eine Hälfte in einem mit Schrauben (3) auf dem Zylinderblock (1) befestigten Kopf (2) und die andere Hälfe in mit Schrauben (15-17) am Kopf (2) befestigten Deckeln (8) geformt ist, dadurch gekennzeichnet, daß der Deckel (8) eine zwischen der Nockenwelle (4, 5) und einer (17) ihrer Schrauben zur Befestigung auf dem Kopf (2) gelegene Öffnung (18) aufweist, die für den Durchgang einer Kopfschraube (3) bestimmt ist.
2. Lagerdeckel nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnung (18) angepaßt ist, ein in den Kopf (2) eingearbeitetes Loch (19-20) zu verlängern und zur Einführung der gesamten Kopfschraube (3) dient.
3. Lagerdeckel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Öffnung (18) zum Anschrauben einer dichten Abdeckung (23) mit einem Gewinde versehen ist.
4. Lagerdeckel nach einem der Ansprüche 1 bis 3, für einem Motor mit zwei obenliegenden Nockenwellen (4, 5) dadurch gekennzeichnet, daß jeder Deckel (8) beiden Wellen gemeinsam ist, und zwischen diesen ein einziges zentrales Durchgangsloch für eine Befestungsschraube (17) und zwischen jeder Welle und dem zentralen Loch eine Durchgangsöffnung (18) für eine Kopfschraube (3) aufweist.
5. Brennkraftmaschine mit mindestens einer obenliegenden Nockenwelle (4, 5), die sich in Lagern (6, 7) dreht, von denen eine Hälfte in einem mit Schrauben (3) auf dem Zylinderblock (1) befestigten Kopf (2) und die andere Hälfte in mit Schrauben (15-17) am Kopf (2) befestigten Deckeln (8) geformt ist, gekennzeichnet durch Lagerdeckel (8) nach einem der Ansprüche 1 bis 4.
6. Brennkraftmaschine nach Anspruch 5, dadurch gekennzeichnet, daß jeder Lagerdeckel (8) gemäß Anspruch 3 ausgebildet ist und daß die Abdeckung (23) auf dem Kopf (2) durch Verschrauben mindestens eines Dichtabschlusses (22), der in einer Öffnung (24) der Abdeckung eingedreht ist, befestigt und in die dem Deckel gegenüberliegende Öffnung (18) geschraubt ist.
EP83401085A 1982-06-14 1983-05-30 Lagerdeckel für die obenliegende Nockenwelle einer Brennkraftmaschine und entsprechende Maschine Expired EP0098180B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210330A FR2528511A1 (fr) 1982-06-14 1982-06-14 Chapeau de palier pour arbre a cames en tete de moteur a combustion interne, et moteur correspondant
FR8210330 1982-06-14

Publications (2)

Publication Number Publication Date
EP0098180A1 EP0098180A1 (de) 1984-01-11
EP0098180B1 true EP0098180B1 (de) 1985-08-28

Family

ID=9274971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401085A Expired EP0098180B1 (de) 1982-06-14 1983-05-30 Lagerdeckel für die obenliegende Nockenwelle einer Brennkraftmaschine und entsprechende Maschine

Country Status (4)

Country Link
US (1) US4497289A (de)
EP (1) EP0098180B1 (de)
DE (1) DE3360670D1 (de)
FR (1) FR2528511A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637367A (en) * 1984-02-28 1987-01-20 Nissan Motor Company, Limited Crankcase emission control system for an internal combustion engine
JPH0646004B2 (ja) * 1984-04-11 1994-06-15 ヤマハ発動機株式会社 内燃機関のカム軸保持構造
JPH0646005B2 (ja) * 1984-06-12 1994-06-15 ヤマハ発動機株式会社 動弁用カム軸の軸受構造
JPS6176712A (ja) * 1984-09-21 1986-04-19 Nissan Motor Co Ltd 内燃機関の動弁装置
JPS61275546A (ja) * 1985-05-30 1986-12-05 Toyota Motor Corp 内燃機関のシリンダヘツド
DE3541700A1 (de) * 1985-11-26 1987-05-27 Audi Ag Brennkraftmaschine mit mindestens einer obenliegenden nockenwelle
DE3616629A1 (de) * 1986-05-16 1987-11-19 Audi Ag Brennkraftmaschine
JPH07642Y2 (ja) * 1987-03-06 1995-01-11 日産自動車株式会社 内燃機関のシリンダヘツド構造
JP2717828B2 (ja) * 1988-12-09 1998-02-25 ヤマハ発動機株式会社 シリンダヘッドの締結構造
JP2611838B2 (ja) * 1989-06-30 1997-05-21 マツダ株式会社 Ｄｏｈｃエンジンのカム軸軸受構造
USRE35382E (en) * 1989-07-14 1996-11-26 Yamaha Hatsudoki Kabushiki Kaisha Lubrication arrangement for engine
FR2669677A1 (fr) * 1990-11-28 1992-05-29 Peugeot Culasse de moteur a combustion interne pour la commande de soupape avec linguet et poussoir.
JP3089689B2 (ja) * 1991-03-20 2000-09-18 スズキ株式会社 シリンダヘッドのオイル通路構造
JPH0586813A (ja) * 1991-09-20 1993-04-06 Mazda Motor Corp カムシヤフトの軸受構造
DE4324791A1 (de) * 1993-07-23 1995-01-26 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine
DE4416627A1 (de) * 1994-05-11 1995-11-16 Audi Ag Brennkraftmaschine
DE19729948A1 (de) * 1997-07-12 1999-01-14 Deutz Ag Nockenwellenlagerrahmen
EP1101922A3 (de) * 1999-11-22 2002-05-02 Kabushiki Kaisha Toyota Jidoshokki Zylinderkopf für eine Brennkraftmaschine
WO2011076959A1 (es) * 2009-12-23 2011-06-30 Amadeo Marti Carbonell, S.A. Dispositivo para el montaje de la culata de un motor
JP6178671B2 (ja) * 2013-08-26 2017-08-09 川崎重工業株式会社 シリンダヘッドボルトの締結構造
DE102013114318B4 (de) * 2013-12-18 2016-09-22 Steyr Motors Gmbh Mehrteiliges Kurbelgehäuse und Montageverfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE660682C (de) * 1934-10-02 1938-06-01 Maybach Motorenbau G M B H Zylinderkopfbefestigung fuer Brennkraftmaschinen
FR943702A (fr) * 1946-01-03 1949-03-16 Zbrojovka Brno Np Commande par chaîne, applicable notamment à la commande de l'arbre à cames des moteurs à combustion interne
US3144013A (en) * 1962-04-10 1964-08-11 Renault Internal combustion engines
FR1511082A (fr) * 1966-12-15 1968-01-26 Peugeot Nouvel agencement de l'arbre à cames sur un moteur thermique ou compresseur et machine en résultant
AT329323B (de) * 1972-11-06 1976-05-10 Denzel Kraftfahrzeug Wolfgang Zylinderkopf fur brennkraftmaschinen
JPS57163141A (en) * 1981-03-31 1982-10-07 Yamaha Motor Co Ltd Cylinder head clamping structure in internal- combustion engine

Also Published As

Publication number Publication date
US4497289A (en) 1985-02-05
EP0098180A1 (de) 1984-01-11
DE3360670D1 (en) 1985-10-03
FR2528511A1 (fr) 1983-12-16
FR2528511B1 (de) 1985-03-22

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