EP0744531B1 - Zylinderkopf für eine Brennkraftmaschine - Google Patents

Zylinderkopf für eine Brennkraftmaschine Download PDF

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Publication number
EP0744531B1
EP0744531B1 EP95107784A EP95107784A EP0744531B1 EP 0744531 B1 EP0744531 B1 EP 0744531B1 EP 95107784 A EP95107784 A EP 95107784A EP 95107784 A EP95107784 A EP 95107784A EP 0744531 B1 EP0744531 B1 EP 0744531B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cylinder
main oil
oil ducts
bores
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
EP95107784A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0744531A1 (de
Inventor
Winfried Krebs
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
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Dr Ing HCF Porsche AG
Renault SAS
Regie Nationale des Usines Renault
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, Renault SAS, Regie Nationale des Usines Renault filed Critical Dr Ing HCF Porsche AG
Priority to DE59504986T priority Critical patent/DE59504986D1/de
Priority to EP95107784A priority patent/EP0744531B1/de
Priority to JP11935296A priority patent/JP3889830B2/ja
Priority to KR1019960017145A priority patent/KR100405587B1/ko
Publication of EP0744531A1 publication Critical patent/EP0744531A1/de
Application granted granted Critical
Publication of EP0744531B1 publication Critical patent/EP0744531B1/de
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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • 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
    • F01M9/107—Lubrication of valve gear or auxiliaries of rocker shaft 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
    • 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
    • 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
    • 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
    • F01M9/102—Lubrication of valve gear or auxiliaries of camshaft 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
    • F01L2001/0476—Camshaft 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
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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 cylinder head for an internal combustion engine the genus of the main claim.
  • Such a cylinder head is known for example from DE 34 36 426 C2.
  • the supply of the bearings of the camshaft and the storage of the Rocker arm is via main oil passages that are parallel to the camshafts run.
  • Each of the two camshafts and the associated rocker arms are supplied by a main oil channel.
  • the two main oil channels run in the middle area of the cylinder head.
  • This cylinder head has a middle one cast block, which among other things receiving openings for the spark plugs having.
  • the main oil channels are in this longitudinal block through holes.
  • the oil flow in such a middle block of the cylinder head leads to very cramped installation conditions, which includes a shift in the cylinder head screw connection require outside, so that the cylinder head screw connection is easily accessible due to the camshaft overlap.
  • such a cylinder head is due to the complex design of the middle block relatively difficult.
  • the training leads one middle block to be subsequently drilled due to the need to be observed Minimum wall thicknesses may cause problems when molding the Blank
  • the inner area of the cylinder head should be largely free of Be internals.
  • the cylinder head be lighter again because of the relatively low Wall thicknesses compared to training as a drilled casting Mass can be saved.
  • the pipelines are guided in crossbars that are connected to one of the outer walls are connected, only the crossbars themselves in the longitudinal direction of the Cylinder head are pierced.
  • the length of the borehole to be drilled is reduced to a minimum.
  • the pipes By routing the pipes in crossbars, the pipes can with a small distance to the outer walls and at the same time as Serve storage for the lever elements of the valve actuation.
  • the bearings the lever elements (rocker arms) are through holes in the Pipeline supplied directly.
  • the cylinder head housing 1 is over two rows of Cylinder head screw connections 2 with a cylinder crankcase 3 in Open-deck construction and is connected by a cover 4 to it Top closed.
  • cylinder head housing 1 there are two parallel ones Camshafts mounted, an intake camshaft 5 and an exhaust camshaft 6.
  • Each of the two camshafts 5, 6 actuates eight via rocker arms 7 Inlet valves 8 and eight exhaust valves 9.
  • Each cylinder is the Internal combustion engine assigned two intake valves and two exhaust valves, which in Valve guides 10 and 11 are guided.
  • the two camshafts 5, 6 are on the one hand, in bearings 12 in the area of the left end wall 13.
  • Two further bearings 14 and 15 are formed in crosspieces 16, 17 which in Area of the second and fourth cylinders arranged and with the outer wall 18th or 19 are connected.
  • the crossbars 16 and 17 are the lower Halves of the bearing bores 20 are formed.
  • the upper part of the bearing bore is formed in bearing caps 21, which are screwed onto the crossbars 16 and 17 are.
  • the rocker arms are in this embodiment as Roller rocker arm formed and mounted on an axis 22 which is parallel to each camshaft 5 or 6 runs and is designed as a tube.
  • This Tube 22 extends over the entire inner length of the cylinder head housing 1 and is guided in bores 23 of the transverse webs 14 and 15.
  • the tube 22 continues to be guided in bores 24, which are introduced into crosspieces 25 are arranged in the area of cylinders 1 and 3 and also with the respective outer wall 18 and 19 are connected.
  • the axes or tubes 22 are guided in blind bores 26 and 27 and sealed.
  • the bores 23, 24, 26 and 27 are from the right end wall 28 brought in.
  • Corresponding bores 29 are in the right end wall 28, 30 formed, which in the region of its outward opening Threads 31, 32 are provided.
  • the axes or tubes 22 are secured and closed.
  • the tubes 22 are used to supply the oil to the engine during operation Bearings 12, 14 and 15 of the camshafts 5 and 6.
  • the tubes 22 in the Area of the transverse webs 16 and 17 and in the area of the bearing points 12 with radial Provide openings 33, from which channels 34 to the bearings 12, 14 and 15th going out.
  • the two annular spaces 36 and 37 are connected to one another via this transverse bore 39 connected.
  • the annular spaces 36 and 37 open oblique bores 41, 42, the each run in the crosspiece 35. These are from the top of the Cylinder head housing 1 introduced and cut the holes 43 to Guide of the tubes 22.
  • the tubes 22 are on their lower side with radial Provide openings 44 which are connected to the oblique bores 41 and 42, respectively stand.
  • the inner space 45 of the tubes is provided via these radial openings 44 the lower part of the oblique holes and thus the oil supply in Connection.
  • the upper part of the oblique bores 41, 42 is through the tube 22 sealed so that no lubricant can leak.
  • roller rocker arm 7 In the area of the roller rocker arm 7 is on the axis 22 (tube) these are provided with further radial openings, not shown, via which the Storage of the roller rocker arm 7 on the axis 22 supplied with lubricant becomes.

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)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP95107784A 1995-05-22 1995-05-22 Zylinderkopf für eine Brennkraftmaschine Expired - Lifetime EP0744531B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59504986T DE59504986D1 (de) 1995-05-22 1995-05-22 Zylinderkopf für eine Brennkraftmaschine
EP95107784A EP0744531B1 (de) 1995-05-22 1995-05-22 Zylinderkopf für eine Brennkraftmaschine
JP11935296A JP3889830B2 (ja) 1995-05-22 1996-05-14 内燃機関に用いられるシリンダヘッド
KR1019960017145A KR100405587B1 (ko) 1995-05-22 1996-05-21 내연기관용실린더헤드

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107784A EP0744531B1 (de) 1995-05-22 1995-05-22 Zylinderkopf für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0744531A1 EP0744531A1 (de) 1996-11-27
EP0744531B1 true EP0744531B1 (de) 1999-01-27

Family

ID=8219275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107784A Expired - Lifetime EP0744531B1 (de) 1995-05-22 1995-05-22 Zylinderkopf für eine Brennkraftmaschine

Country Status (4)

Country Link
EP (1) EP0744531B1 (ko)
JP (1) JP3889830B2 (ko)
KR (1) KR100405587B1 (ko)
DE (1) DE59504986D1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7845316B2 (en) * 2007-07-06 2010-12-07 Brp-Powertrain Gmbh & Co Kg Internal combustion engine cooling system
JP4742129B2 (ja) * 2008-10-06 2011-08-10 株式会社オティックス カムキャップおよびカムキャップの製造方法
WO2011086201A2 (es) * 2009-12-23 2011-07-21 Amadeo Marti Carbonell, S.A. Mejoras introducidas en la lubricación de los asientos de un árbol de levas y eje de balancines en un motor de combustión interna
JP5310643B2 (ja) * 2010-04-28 2013-10-09 三菱自動車工業株式会社 シリンダヘッド
DE102019000489A1 (de) * 2019-01-23 2020-07-23 Deutz Aktiengesellschaft Ölversorgung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163141A (en) * 1981-03-31 1982-10-07 Yamaha Motor Co Ltd Cylinder head clamping structure in internal- combustion engine
JPS5958109A (ja) * 1982-09-27 1984-04-03 Honda Motor Co Ltd 動弁系の潤滑油供給構造
JPS6079141A (ja) 1983-10-04 1985-05-04 Honda Motor Co Ltd Ｄｏｈｃ型４サイクル内燃機関のシリンダヘツド
CA1330026C (en) * 1987-12-28 1994-06-07 Tomonori Niizato Lubricant supplying system for dohc type multi-cylinder internal combustion engine
JPH088287Y2 (ja) * 1988-02-22 1996-03-06 日産自動車株式会社 Ｄｏｈｃ４バルブ型内燃機関のシリンダヘッド
CA1331547C (en) * 1988-08-01 1994-08-23 Yukihiro Matsumoto Valve operating system for internal combustion engine

Also Published As

Publication number Publication date
JPH09119343A (ja) 1997-05-06
JP3889830B2 (ja) 2007-03-07
KR960041675A (ko) 1996-12-19
DE59504986D1 (de) 1999-03-11
KR100405587B1 (ko) 2004-04-09
EP0744531A1 (de) 1996-11-27

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