EP0821144B1 - Agencement d'une culasse d'un moteur à combustion interne - Google Patents

Agencement d'une culasse d'un moteur à combustion interne Download PDF

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Publication number
EP0821144B1
EP0821144B1 EP97109097A EP97109097A EP0821144B1 EP 0821144 B1 EP0821144 B1 EP 0821144B1 EP 97109097 A EP97109097 A EP 97109097A EP 97109097 A EP97109097 A EP 97109097A EP 0821144 B1 EP0821144 B1 EP 0821144B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
combustion engine
internal
head arrangement
cylinder head
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
EP97109097A
Other languages
German (de)
English (en)
Other versions
EP0821144A1 (fr
Inventor
Roland Hauf
Joachim Schmauder
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 EP0821144A1 publication Critical patent/EP0821144A1/fr
Application granted granted Critical
Publication of EP0821144B1 publication Critical patent/EP0821144B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • 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
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/106—Oil reservoirs
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • 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]
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the invention relates to a cylinder head arrangement of an internal combustion engine according to the Genus of the main claim.
  • Such a cylinder head arrangement is, for example, in EP 0 377 829 B1 described.
  • This is particularly useful after parking and when Restart of the internal combustion engine for immediate splash lubrication of the cams and the camshaft.
  • the oil channel for the lower camshaft in the installed position is thereby through the lower wall of the cylinder head base housing and the adjacent lower one Wall of the cylinder head cover formed.
  • Internal combustion engine gathers everything within the cylinder head assembly escaping lubricant in the lower area of the cylinder head arrangement.
  • the Oil return from the cylinder head to the oil pump or to the oil pan is consequently also arranged in the lower area of the internal combustion engine.
  • the Oil return from the cylinder head to the oil pump or to the oil pan is consequently also arranged in the lower area of the internal combustion engine.
  • the oil flow within the Improve cylinder head assembly is said to be an undamaged Return of the lubricant exiting within the cylinder head arrangement without or with the least possible wastage. At the same time Sufficient lubrication of the cams already when the internal combustion engine starts up be ensured.
  • This oil channel can be in a particularly advantageous manner in the case of very inclined or flat lying cylinder head arrangements by two-part training on one Cylinder head base housing and the cylinder head cover are formed. there can then the lower walls of the cylinder head base housing and the Form the cylinder head cover a channel or a channel for the returning oil.
  • the return flow of the lubricant exiting within the cylinder head assembly is also improved in a particularly advantageous manner if the lower Wall of the cylinder head assembly in the installed position of the internal combustion engine against the Horizontal is inclined. This creates a natural gradient, at the end of which a connection (return) to the oil reservoir of the internal combustion engine can be.
  • the housing elements of the cylinder head arrangement can be particularly advantageous Ways to be cast, if the oil channels start from the lower part of the cylinder head base housing or starting from the top of the Cylinder head cover have a flat bottom with raised edges.
  • a Such a flat design is particularly advantageous for the production of the casting mold and shaping the blank.
  • An internal combustion engine has a cylinder block, not shown mounted cylinder head assembly, the housing of three Housing components is composed, a cylinder head basic housing 1, a tappet housing 2 and a cylinder head cover 3. Die
  • the internal combustion engine is in the form of a cylinder bank a six-cylinder boxer engine with four valves per cylinder and two shown overhead camshafts.
  • the invention is also straightforward suitable for internal combustion engines in a V arrangement or for in-line engines that are flat or installed at an angle to the horizontal.
  • the cylinder head basic housing 1 has a lower part 4, in the inlet and outlet gas exchange channels 5, 6th are formed, each opening into a combustion chamber 7 of a cylinder.
  • the tappet housing 2 has below the upper camshaft (Inlet camshaft 11) per cam 29 an extension 30 in which one up open recess 31 is formed.
  • This recess is designed so that the rotating cams 29 in the lubricant accumulating in the recess 31 can immerse.
  • the operation of the internal combustion engine occurs in a manner known per se and Way to the bearing and located within the cylinder head assembly Lubrication points from lubricant and enters the interior 24. This storage and Lubrication points are, for example, in the area of the camshaft bearings (bearing blocks 14 to 17) and in the area of the guidance of the tappets 10, 12.
  • recess 31 forms an open top Tub, so that after switching off the internal combustion engine lubricant within the recess 31 remains. This lubricant is used when restarting the Internal combustion engine for immediate splash lubrication of the cams 29.
  • the lower wall 20 of the cylinder head base housing 1 has a first, from the lower part 4 outgoing section 38 into a second, deep-drawn section 39 transforms.
  • This second, deep-drawn section 39 extends to the flange level 21.
  • From the transition 40 of the first section 38 into the second section 39 of the bottom wall 20 go out three extensions 41, one analogous to the extensions 30 have flat bottom 42 and two raised edges 43, 44.
  • the extensions 41 protrude to the flange level 21 and thus extend together with the extensions 30 in the cylinder head cover each have one of the oil channels 34.
  • the edges 43, 44 are sufficient thereby up to the lower part 4 of the cylinder head base housing 1
  • Extensions 33 and 41 formed oil channel 34 forms an in the installed position Internal combustion engine open trough in which there is lubricant (oil) accumulates.
  • the oil channels formed in this way extend in this embodiment from the lower part 4 of the cylinder head base housing 1 to the top 32 of the Cylinder head cover 3.
  • the lubricant that collects in the oil channels 34 comes from predominantly from the guidance of the tappets 12.
  • the oil channels 34 are each so arranged that the tips of the cams 45 into the oil with each revolution immerse. For this purpose, these oil channels 34 are each between two neighboring ones Bearing blocks arranged that each cam 45 assigned to a cylinder immerse.
  • the lower wall 47 forms together with the adjacent part of the upper side 32 or the second section 39 of the wall 20 an oil channel 48, which is partially through the oil channel 34 on its upper side is covered. An undisturbed oil return of the inside can occur in this oil channel 48 the lubricant escaping from the cylinder head assembly to a lower one Form location (chain case 23) within the cylinder head arrangement.
  • the first section 38 of the wall 20 and the bottom 42 of the extension 41 are shown in FIG Installation position of the engine slightly inclined to the horizontal H, so that there is a natural slope to the cylinder head cover 3. This will ensured that in the area of the exhaust camshaft 13 or the cam 45 in Operation of the internal combustion engine sets a sufficient lubricant level, at the same time the oil volume located within the oil channel 34 is kept low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (10)

  1. Agencement de culasse d'un moteur à combustion interne comportant deux arbres à cames en tête (11, 13) avec des cames (29, 45) pour l'actionnement de soupapes d'échange des gaz (8, 9), et comportant au moins une goulotte d'huile (31, 34), disposée au-dessous d'un arbre à cames en position de montage du moteur à combustion interne, dans laquelle plonge au moins la pointe d'une came, caractérisé en ce que la goulotte d'huile (34), affectée à l'arbre à cames (13) inférieur en position de montage, s'étend au moins au-dessous de cet arbre à cames, à distance de la paroi (47) de l'agencement de culasse.
  2. Agencement de culasse d'un moteur à combustion interne selon la revendication 1, caractérisé en ce que l'arbre à cames inférieur (13) actionne, chaque fois au moyen de deux cames (45), deux soupapes d'échange de gaz (9) par cylindre du moteur à combustion interne, et en ce qu'une goulotte d'huile (34) commune est affectée chaque fois à deux cames.
  3. Agencement de culasse d'un moteur à combustion interne selon la revendication 1 ou 2, caractérisé en ce que la goulotte d'huile (34) est en deux parties, en ce qu'une partie (41) de la goulotte d'huile est formée dans un boítier principal (1) de la culasse et la deuxième partie (33), dans un couvre-culasse (3).
  4. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce que la paroi inférieure (47) de l'agencement de culasse est inclinée par rapport à l'horizontale (H) en position de montage du moteur à combustion interne.
  5. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce que la goulotte d'huile (34) est disposée chaque fois entre deux paliers (15, 17) voisins de l'arbre à cames inférieur, et en ce que la goulotte d'huile s'étend à distance de ces paliers.
  6. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce que la goulotte d'huile (34) présente chaque fois un fond plat (42), qui part de la partie de fond (4) du boítier principal (1) de la culasse, avec des bords (43, 44) relevés latéralement.
  7. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce que la goulotte d'huile (34) présente chaque fois un fond plat (35), qui part du côté supérieur (32) du couvre-culasse (3), avec des bords (36, 37) relevés.
  8. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce qu'un canal de retour d'huile (48), fermé par endroits, est formé entre la goulotte d'huile (34) et la paroi inférieure (47) de l'agencement de culasse.
  9. Agencement de culasse d'un moteur à combustion interne selon la revendication 8, caractérisé en ce que le canal de retour d'huile (48) est ouvert vers le haut, au voisinage des paliers inférieurs (15, 17).
  10. Agencement de culasse d'un moteur à combustion interne selon l'une des revendications précédentes, caractérisé en ce que le canal de retour d'huile (48) s'étend au-dessous des cylindres d'une rangée de cylindres, présente une pente et mène à un point d'écoulement (23) commun.
EP97109097A 1996-07-26 1997-06-05 Agencement d'une culasse d'un moteur à combustion interne Expired - Lifetime EP0821144B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19630192 1996-07-26
DE19630192A DE19630192C2 (de) 1996-07-26 1996-07-26 Zylinderkopfanordnung einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0821144A1 EP0821144A1 (fr) 1998-01-28
EP0821144B1 true EP0821144B1 (fr) 2001-08-01

Family

ID=7800922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97109097A Expired - Lifetime EP0821144B1 (fr) 1996-07-26 1997-06-05 Agencement d'une culasse d'un moteur à combustion interne

Country Status (3)

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EP (1) EP0821144B1 (fr)
JP (1) JPH1082312A (fr)
DE (2) DE19630192C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19828307A1 (de) * 1998-06-25 1999-12-30 Porsche Ag Zylinderkopf einer Brennkraftmaschine
DE19828308A1 (de) * 1998-06-25 1999-12-30 Porsche Ag Zylinderkopf einer Brennkraftmaschine
DE10118888B4 (de) * 2001-04-18 2006-08-17 Josef Radermacher Zusatzeinlaßsteuerung durch einen Zusatzeinlaßkanal, Zwischenventil, Auslaßkanal und das Auslaßventil
DE50211849D1 (de) 2001-09-11 2008-04-17 Porsche Ag Ventiltrieb für eine brennkraftmaschine
JP4625425B2 (ja) * 2006-05-22 2011-02-02 本田技研工業株式会社 シリンダヘッドのオイル通路構造
JP5135052B2 (ja) * 2008-05-08 2013-01-30 ヤマハ発動機株式会社 エンジン及びスクータ型自動二輪車
FR2959683B1 (fr) * 2010-05-06 2012-05-25 Peugeot Citroen Automobiles Sa Procede d'elimination du copeau residuel d'usinage de l'alesage d'un logement en forme de manchon cylindrique, en particulier d'un logement de poussoir sur une culasse de moteur de vehicule.
FR3016409B1 (fr) * 2014-01-13 2018-11-16 Rdmo Moteur a explosion comprenant des augets de graissage des cames

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737901C2 (de) * 1977-08-23 1983-01-05 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Gehäuse für eine Nockenwelle einer Brennkraftmaschine für Kraftfahrzeuge
JP2911463B2 (ja) * 1988-12-09 1999-06-23 ヤマハ発動機株式会社 動弁機構の潤滑構造
JP3235159B2 (ja) * 1992-01-31 2001-12-04 いすゞ自動車株式会社 Ｖ型ｏｈｖエンジンの潤滑装置
JPH08128311A (ja) * 1994-11-01 1996-05-21 Nissan Motor Co Ltd 内燃機関の潤滑システム

Also Published As

Publication number Publication date
DE19630192A1 (de) 1998-01-29
DE59704174D1 (de) 2001-09-06
JPH1082312A (ja) 1998-03-31
EP0821144A1 (fr) 1998-01-28
DE19630192C2 (de) 1998-05-28

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