EP0436779B1 - Zylinderkopf einer Brennkraftmaschine - Google Patents

Zylinderkopf einer Brennkraftmaschine Download PDF

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Publication number
EP0436779B1
EP0436779B1 EP90116952A EP90116952A EP0436779B1 EP 0436779 B1 EP0436779 B1 EP 0436779B1 EP 90116952 A EP90116952 A EP 90116952A EP 90116952 A EP90116952 A EP 90116952A EP 0436779 B1 EP0436779 B1 EP 0436779B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cylinder
head according
support
receiving means
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
EP90116952A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0436779A1 (de
Inventor
Manfred Dipl.-Ing. Batzill
Herbert Dipl.-Ing. Fh Ampferer
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 EP0436779A1 publication Critical patent/EP0436779A1/de
Application granted granted Critical
Publication of EP0436779B1 publication Critical patent/EP0436779B1/de
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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/262—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with valve stems disposed radially from a centre which is substantially the centre of curvature of the upper wall surface of a combustion chamber
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • 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
    • 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
    • F01M9/104—Lubrication of valve gear or auxiliaries of tappets
    • 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
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/256—Valve configurations in relation to engine configured other than perpendicular to camshaft axis
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/02—Attachment or mounting of cylinder heads on cylinders
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
    • 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
    • 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
    • F02F2001/246—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis and orientated radially from the combustion chamber surface

Definitions

  • the invention relates to a cylinder head of an internal combustion engine according to the preamble of claim 1.
  • a camshaft bearing frame for an internal combustion engine with four valves per cylinder is known, which is screwed onto the cylinder head base housing as a separate part.
  • This bearing frame consists of a cast part with webs running transversely to the longitudinal direction between the cylinders and at the two ends of the cylinder head, and with two webs running parallel in the longitudinal direction, which rest on the lateral housing walls of the cylinder head.
  • Lower half-shells for the bearings of camshafts are formed in the transverse webs, the upper halves of which are formed by separate bearing covers which can be screwed onto the camshaft bearing frame.
  • This bearing frame enables the camshafts and their bearings to be pre-assembled separately.
  • DE 38 19 655 discloses a four-valve cylinder head for an internal combustion engine, in which the receptacles for the tappets are combined in pairs in the form of glasses.
  • This cylinder head has a complicated shape, which requires a sand casting process due to the many undercuts on the top side opposite the combustion chamber side. This process requires thorough and time-consuming cleaning of the top side after casting.
  • Upper and lower girder sections each include parts of a central web and parts of several cross webs.
  • no separate, weight-increasing longitudinal webs are arranged in the carrier, rather this function is performed by struts running on both sides of the central web in the lower part of the carrier, which include tappet-guiding receptacles which are connected to one another by bridges.
  • Each receptacle is in turn supported by at least one support on the part of the central web running in the lower part of the carrier.
  • the tappet bearing, pair-cooperating receptacles of a cylinder are connected to one another via a bridge designed as a rib, while the bridge between receptacles belonging to adjacent cylinders is used as bearing bottoms of bearings is designed for two camshafts.
  • the pairs of cooperating receptacles of a cylinder are connected via a bridge designed as a bearing lower part of a bearing of a camshaft, the bridge between receptacles belonging to adjacent cylinders being connected via a bridge designed as a rib.
  • the central web extends in a ring shape above each cylinder to form at least one ring element.
  • the through openings formed by the ring elements allow the installation of a spark plug or an injection device.
  • double ignition can be implemented, in which case two valves are then preferably arranged per cylinder.
  • the contour of the upper part of the carrier is adapted to that of the lower part of the carrier, ie it carries a corresponding number of ring elements in the central web and the upper parts of the bearings for the bearings of the camshafts are each arranged above the bridges of the lower part of the carrier which are designed as lower parts of the bearing.
  • stiffening ribs can be arranged in the upper girder part between the transverse webs. It can thus be used advantageously in both internal and externally ignited internal combustion engines with two or more valves per cylinder and single or double spark plug arrangement.
  • the invention provides great freedom in the valve position with respect to the combustion chamber and in the arrangement of the cylinder head screws.
  • an internal combustion engine with e.g. Four valves per cylinder, which are arranged spherically to the combustion chamber, cannot meet the load-bearing and easily accessible arrangement of the cylinder head screws with bucket tappet guides arranged in the cylinder head housing and at the same time demand for the smallest overall length of the internal combustion engine.
  • the holes in the cylinder head housing which are used for the through-opening of the cylinder head bolts, are freely accessible, and these holes can be arranged in a manner suitable for the load in areas of maximum strength of the cylinder block underneath.
  • Cylinder head assembly first requires inserting the valves into the cylinder head housing and attaching the cylinder head bolts. Then the valve springs and the valve plates are attached. Following this, either the completely pre-assembled carrier can be screwed onto the cylinder head housing as a complete unit, or its individual parts can be assembled one after the other. In the latter case, the first will be Lower part of the carrier inserted and the tappets inserted into the receptacles. The camshafts are then inserted and the upper part of the beam is screwed onto the lower part of the beam, as is the entire beam on the cylinder head housing.
  • the carrier can be completely pre-assembled by machine and then mechanically attached to the cylinder head housing.
  • the cylinder head 1 of a multi-cylinder internal combustion engine has a cylinder head housing 3 arranged on a cylinder block 2 and a carrier 4 mounted thereon, in which camshafts 5 are arranged in bearings 6.
  • the cylinder head 1 has four spherically arranged valves 7 with springs 8 and spring plates 9 assigned to them.
  • the valves 7 are actuated by conical cams 10 directly via tappets 11.
  • the carrier 4 consists of an upper carrier part 12 and a lower carrier part 13.
  • the carrier 4 has a central web 15 running as a longitudinal web 14 , which runs parallel to the crankshaft of the internal combustion engine and is formed in the upper carrier part 12 and in the lower carrier part 13.
  • Struts 16, which are formed from receptacles 17 for the cup tappets 11 and bridges 18 connecting these receptacles 17, run in the lower carrier part 13 on both sides of the central web 15 and spaced parallel to them.
  • the receptacles 17 are arranged coaxially with the central longitudinal axes V of the valves 7.
  • the central longitudinal axes N of the camshaft 5 run in the plane parting plane 20 running between the upper part 12 and the lower part 13.
  • the bearings 6 are each formed from the upper part 21 in the upper part 12 and the lower part 22 in the lower part 13.
  • Each receptacle 17 is designed as a guide sleeve connected to the lower support part 13 via at least one support 23.
  • the struts 16 run with the supports 23 below the parting plane 20.
  • the central web 15 widens in a ring shape to form a ring element 24, which in this case encloses a through opening 25 and is arranged concentrically to the cylinder longitudinal axis Z. It enables the insertion of a tube 26, which enables access to a spark plug 27.
  • a lubricant channel system is arranged in the carrier 4 and is connected to the lubricating oil circuit of the internal combustion engine.
  • This system comprises channels 28, 29, 30, the channels 28, 29 running within the upper carrier part 12 in the central web 15 and in the transverse webs 19 and the channels 30 being arranged in the supports 23.
  • the channel 28 is connected at an arbitrary point, not shown, to the lubricating oil circuit of the internal combustion engine and serves as a distributor for the lubricating oil into the channels 29, 30.
  • the through-openings 25 are evenly flowed around by the channel 28, so that they are in the area of the ring elements 24 the carrier lower part 13 connected channels 30 supply the receptacles 17 with lubricating oil for guiding the tappets.
  • channels 30 branch off from channel 28 and lead lubricating oil to the bearings 6 of the camshafts 5.
  • first bridges 18 are designed as the lower bearing parts 22.
  • the transverse webs 19 are arranged between the struts 16 and are made in one piece with the lower bearing parts 22.
  • the transverse webs 19 have projections 32 which ensure that the receptacles 17 lying adjacent to a transverse web 19 are rigidly connected to one another over their entire height.
  • Second bridges 18 are designed as ribs 31 between the receptacles 17 belonging to a cylinder. These ribs 31 can be omitted if the associated receptacles 17 are cast together directly at a small distance.
  • the upper bearing parts 21 are formed in the part of the transverse webs 19 running in the upper part 12 of the carrier. On both sides of the upper bearing parts 21 and in the region of the central web 15, bores 33 are arranged in the upper carrier part 12, which together with further bores 33 in the lower carrier part 13 and in the cylinder head housing 3 enable screw connections 34, 35.
  • the cylinder head housing 3 When assembling the part described above, the cylinder head housing 3 is first fastened to the cylinder block 2 with cylinder head screws 36 after the valves 7 have been pushed into corresponding guides. Bores 37 are provided in the cylinder head housing for receiving the cylinder head screws 36. Then the springs 8 and the spring plate 9 are attached to the valves 7. At this time, the image shown in FIG. 1 in the section labeled A results for the entire cylinder head. Subsequently, as already mentioned in the introduction to the description, the carrier 4 fully equipped with the camshafts 5 and the tappets 11 can be assembled as a whole or in individual parts in succession. The latter option is described in more detail below.
  • the carrier lower part 13 is first placed on the cylinder head housing 3 at three contact surfaces 38, then the tappets 11 are pushed into the receptacles 17.
  • the result shown in the section labeled B in FIG. 1 results for the entire cylinder head.
  • the upper carrier part 12 is fixed to the lower carrier part 13 with the screw connections 34.
  • the screw connections 35 penetrate the contact surfaces 38 and clamp the carrier lower part 13 between the cylinder head housing 3 and the upper carrier part 12 and fasten the carrier 4 in the cylinder head 1 (section D in FIG. 1).
  • a hood 39 is placed on the cylinder head 1.
  • This hood 39 surrounds the carrier 4 in a U-shape and lies on a flange 40 which can be machined together with the contact surfaces 38.
  • the surface between the hood 39 and the flange 40 is completely flat and has no bores, so that a simple seal is possible.
  • the tube 26 is inserted into the passage opening 25 and seals the spark plug area by means of two seals 41 in an opening 42 of the hood 39 and in a holder 43 in the cylinder head housing 3.
  • the arrangement of the screw connections 34, 35 in the plane in which the cylinder head screws are arranged enables an optimal, load-appropriate application of force from the carrier 4 to the cylinder block 2.
  • the invention can also be advantageous in internal combustion engines with e.g. two or three valves per cylinder can be used.
  • the corresponding receptacles 17 lie opposite one another in a plane which is parallel to and in the middle of two transverse webs 19.
  • two receptacles 17 are advantageously located diagonally opposite one another between two transverse webs 19.
  • the central web 15 then has two ring elements 24 for each cylinder, which can also lie diagonally opposite one another.
  • the transverse webs 19 are arranged above each cylinder of the internal combustion engine and each take on an annular element 24.
  • two receptacles 17 assigned to a cylinder are cast together below a lower bearing part 22 which acts as a bridge 18.
  • Two adjacent receptacles 17 belonging to adjacent cylinders are connected by a rib 31.

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  • 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP90116952A 1989-12-11 1990-09-04 Zylinderkopf einer Brennkraftmaschine Expired - Lifetime EP0436779B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940845 1989-12-11
DE3940845A DE3940845C1 (enrdf_load_stackoverflow) 1989-12-11 1989-12-11

Publications (2)

Publication Number Publication Date
EP0436779A1 EP0436779A1 (de) 1991-07-17
EP0436779B1 true EP0436779B1 (de) 1993-12-29

Family

ID=6395216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116952A Expired - Lifetime EP0436779B1 (de) 1989-12-11 1990-09-04 Zylinderkopf einer Brennkraftmaschine

Country Status (5)

Country Link
US (1) US5080057A (enrdf_load_stackoverflow)
EP (1) EP0436779B1 (enrdf_load_stackoverflow)
JP (1) JPH0491351A (enrdf_load_stackoverflow)
DE (5) DE3943727C2 (enrdf_load_stackoverflow)
ES (1) ES2047785T3 (enrdf_load_stackoverflow)

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* Cited by examiner, † Cited by third party
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DE4116942C1 (en) * 1991-05-24 1992-05-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Cylinder head for multicylinder IC engine - has accessory cover bolts with oil bores for guiding oil to bearing points and valve tappets
DE4116944C2 (de) * 1991-05-24 1997-05-22 Daimler Benz Ag Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
US5301641A (en) * 1991-11-06 1994-04-12 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
JP2570789Y2 (ja) * 1992-08-27 1998-05-13 本田技研工業株式会社 エンジンのカムキャリア構造
US5522354A (en) * 1993-10-29 1996-06-04 Yamaha Hatsudoki Kabushiki Kaisha Valve mechanism for internal combustion engine
US6209507B1 (en) 1992-10-19 2001-04-03 Yamaha Hatsudoki Kabushiki Kaisha Valve mechanism for internal combustion engine
US5347964A (en) * 1993-09-07 1994-09-20 Chrysler Corporation Valve train for internal combustion engines
JPH07103067A (ja) * 1993-09-30 1995-04-18 Suzuki Motor Corp シリンダヘッドの構造
DE4410122C2 (de) * 1994-03-24 2003-05-08 Ina Schaeffler Kg Verbindung einer Führungsschiene einer Ventilbetätigungseinrichtung mit einem Nockenwellenlager
DE69414557T2 (de) * 1994-06-15 1999-04-01 Yamaha Hatsudoki K.K., Iwata, Shizuoka Zylinderkopfanordnung für eine Mehrventil-Brennkraftmaschine mit obenliegender Nockenwelle
DE4421057C1 (de) * 1994-06-16 1995-09-14 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine
DE4435299A1 (de) * 1994-10-01 1996-04-04 Bayerische Motoren Werke Ag Reihen-Zylinderkopf mit gegossenem Öl-Längskanal
US5570665A (en) * 1995-04-04 1996-11-05 Chrysler Corporation Valve train for internal combustion engine
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DE19600448C1 (de) * 1996-01-09 1997-04-10 Daimler Benz Ag Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
US5939103A (en) * 1996-01-22 1999-08-17 Erikson; Jon R. Gas nozzle assembly for a gas assisted injection molding system
DE19605934C1 (de) * 1996-02-17 1997-06-12 Audi Ag Zylinderkopf einer direkteinspritzenden Brennkraftmaschine
DE19621636C2 (de) * 1996-05-30 1999-03-11 Audi Ag Vorrichtung zum Schmieren der Nocken einer Nockenwelle
US5669344A (en) * 1996-08-09 1997-09-23 Chrysler Corporation Sohc system with radial valves
US5651337A (en) * 1996-08-09 1997-07-29 Chrysler Corporation Carrier for camshaft and tappet support
DE19712658A1 (de) * 1997-03-26 1998-10-01 Schaeffler Waelzlager Ohg Zylinderkopf einer Hubkolbenbrennkraftmaschine
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DE3943729A1 (de) 1994-02-17
DE3943727A1 (de) 1994-02-10
US5080057A (en) 1992-01-14
DE3943727C2 (de) 1995-07-13
ES2047785T3 (es) 1994-03-01
DE3943729C2 (de) 1995-07-13
DE3943728A1 (de) 1994-02-10
DE3940845C1 (enrdf_load_stackoverflow) 1990-08-09
JPH0491351A (ja) 1992-03-24
DE59004034D1 (de) 1994-02-10
EP0436779A1 (de) 1991-07-17
DE3943728C2 (de) 1995-07-13

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