EP1034358A1 - Culasse destinee a un moteur a combustion interne dote d'une unite gicleur de pompe - Google Patents

Culasse destinee a un moteur a combustion interne dote d'une unite gicleur de pompe

Info

Publication number
EP1034358A1
EP1034358A1 EP98956849A EP98956849A EP1034358A1 EP 1034358 A1 EP1034358 A1 EP 1034358A1 EP 98956849 A EP98956849 A EP 98956849A EP 98956849 A EP98956849 A EP 98956849A EP 1034358 A1 EP1034358 A1 EP 1034358A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
lubricant supply
lubricant
supply channel
rocker arm
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
EP98956849A
Other languages
German (de)
English (en)
Other versions
EP1034358B1 (fr
Inventor
Ingo KÜHNE
Jens Hadler
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1034358A1 publication Critical patent/EP1034358A1/fr
Application granted granted Critical
Publication of EP1034358B1 publication Critical patent/EP1034358B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • 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
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]

Definitions

  • the invention relates to a cylinder head for an internal combustion engine with pump nozzle units, wherein at least one bearing block with a bearing half for a camshaft and a bearing half for a rocker arm axis for rocker arms for actuating the pump nozzle unit is provided on the cylinder head, according to the preamble of claim 1.
  • a generic cylinder head is known from DE 42 32 783 A1.
  • a pump nozzle unit is attached to the cylinder head via a rocker arm axis and bearing blocks for this, so that a mounting flange is not required and the unit itself therefore has a small throat on the side.
  • DE 196 34 541 A1 also discloses a method for producing such a bearing arrangement.
  • the present invention has for its object to provide an improved cylinder head of the type mentioned above, in which the functional reliability of the assembly consisting of camshaft, rocker arm axis, rocker arms, pump nozzle unit and gas exchange valves is increased in a simple manner.
  • a first separate lubricant supply channel is provided in the cylinder head and a second separate lubricant supply channel is provided in the bearing block, a first end of the second lubricant supply channel being connected to the first lubricant supply channel and a second end of the second lubricant supply channel ends open in a bearing surface for the rocker arm axis.
  • the second lubricant supply channel allows the lubricant to be guided in a targeted manner to a precisely predetermined location, namely the second end of the second lubricant supply channel, with a, among other things. through a cross-section of the lubricant supply channel, precisely predetermined throughput of lubricant, since there is no flat distribution, as in a groove, but a targeted guidance of the lubricant in the channel.
  • the arrangement of separate lubricant supply channels also avoids a combination with screw holes in this area, so that additional sealing measures in the area of a screw opening used as a lubricant path are unnecessary.
  • the latter is advantageously connected to a lubricant gallery.
  • a simple combination of only two different components for realizing an actuation arrangement of pump nozzle units in the production of internal combustion engines with different numbers of cylinders can be achieved in that a rocker arm axis for mounting rocker arms for respective pump nozzle units for two cylinders and a rocker arm axis for mounting rocker arms is provided for respective pump nozzle units for three cylinders.
  • Internal combustion engines can be equipped with any number of cylinders, in particular with two, three, four, five, six, eight or twelve cylinders.
  • a third separate lubricant supply duct is formed in a particularly advantageous manner in the cylinder head, which is connected to a lubricant gallery or the first lubricant supply duct and ends openly in a bearing surface of the camshaft in the cylinder head.
  • At least one fourth lubricant supply channel is also formed in the latter.
  • the fourth lubricant supply channel is connected to the oil gallery.
  • the auxiliary unit is preferably a blower, a generator and / or a water pump.
  • rocker arms for actuating respective pump nozzle units are expediently arranged between bearing blocks. This advantageously reduces the installation space required by the arrangement.
  • the lubricant is expediently oil.
  • a fifth lubricant supply channel is advantageously formed in the rocker arm axis, which is connected to the second lubricant supply channel and guides lubricant to a bearing point of the rocker arm of the pump nozzle unit.
  • FIG. 1 shows a preferred embodiment of a cylinder head according to the invention in supervision
  • FIG. 3 is a sectional view taken along line A-A of FIG. 1,
  • Fig. 5 in a sectional view along the line B-B of Fig. 4 and
  • FIG. 6 in a further sectional view along the line C-C of FIG. 4.
  • FIGS. 1 to 3 of a cylinder head 10 comprises a camshaft gear 12, a camshaft 14 with cams 16 for actuating rocker arms (not shown) for bucket tappets 18 (FIG. 3) and with cams 20 for actuating rocker arms 22, which in turn actuate a respective pump nozzle unit 24, which is only indicated schematically in FIG. 3.
  • the camshaft 14 is mounted in a bearing 26, which is formed half by the cylinder head 10 and the other half by a bearing block 28.
  • the bearing block 28 has one half of a bearing 30 for a rocker arm axis 32 for the rocker arms 22 of the pump nozzle units 24.
  • the rocker arm axis 32 is fixed on the bearing block 28 by means of screws 46.
  • the bearing blocks 28 are also fastened with screws 48 and the cylinder head 10 is assembled with cylinder head screws 50.
  • An electrical connection device 34 (FIGS. 1 and 2) is used for the external connection of an electrical wiring 36 of the cylinder head 10.
  • the bucket tappets 18 either open or close gas exchange valves 38 with respective air inlets and exhaust gas outlets 40 (FIG. 3).
  • the bearing block 28 has lateral lugs 42 (FIG. 2). These are machined from the one-piece bearing block 30, for example.
  • Fig. 3 shows a section substantially along the line AA of Fig. 1, but the section plane in the direction perpendicular to the line AA and perpendicular to the drawing plane of Fig. 1 is not smooth, but to illustrate various components that are not in one Level, also has level transitions.
  • the section in Fig. 3 is chosen such that a
  • a first separate lubricant supply channel 52 is provided in the cylinder head 10, which is provided with is connected to a lubricant gallery 54 and is supplied by this with lubricant, for example oil.
  • lubricant supply duct essentially means that the lubricant supply duct is spaced from all screw bores or other bores penetrating the bearing block or the cylinder head. In other words, “separate” lubricant supply channels are not combined with screw holes.
  • the bearing block 28 has a second separate lubricant supply channel 56, the lower end of which in FIG. 3 is aligned with the first lubricant supply channel 52 when the bearing block 28 is mounted, so that lubricant from the first lubricant supply channel 52 into the second lubricant supply channel 56 can flow.
  • the second lubricant supply channel 56 in the bearing block 28 ends with an opening 58 opposite the first lubricant supply channel 52 in a bearing surface 60 of the bearing 30 in the bearing block 28. Lubricant is supplied to the rocker arm axis 32 via this opening 30.
  • a fifth separate lubricant supply channel 68 is formed in the rocker arm axis and is aligned with the second lubricant supply channel 56 when the rocker arm axis 32 is mounted, so that lubricant can flow from the second lubricant supply channel 56 into the fifth lubricant supply channel 68.
  • This fifth lubricant supply channel 68 guides the lubricant to a bearing part of the rocker arm 22, on which this carries out a back and forth movement about the rocker arm axis 32.
  • a third separate lubricant supply channel 62 is provided, which is connected to the lubricant lubricant 54 or the first lubricant supply channel 52 and ends with an open end 64 in a bearing surface 66 in the bearing half of the cylinder head 10 . In this way, the bearing 26 of the camshaft 14 is supplied with lubricant.
  • Fig. 2 further illustrates that in the cylinder head 10, a fourth separate lubricant supply channel 70 is provided, which is connected on the one hand to the lubricant gallery 54 and on the other hand lubricant to an auxiliary unit, not shown, for its lubricant supply.
  • Fig. 4 shows the cylinder head 10 in the unmounted state, ie without camshaft, rocker arm axis, bucket tappet, pump nozzle units and bearing blocks.
  • the partially cut gas exchange valves 38, the opening 58 of the second lubricant supply channels 56, the bearing surface 66 of the camshaft bearing 26 and the open ends 64 of the third lubricant supply channels 62 can be seen in the partially sectioned top view of FIG. 4.
  • FIG. 5 shows in a section along line BB of FIG. 4 the arrangement of the third lubricant supply channel 62 for the lubricant supply to the camshaft, not shown in FIG. 5, and FIG. 6 shows in a section along line CC of FIG Arrangement of the fourth lubricant supply channel 70 for supplying lubricant to an auxiliary unit, not shown. All other components are provided with corresponding reference numerals as in FIGS. 1 to 4, so that reference is made to the above statements with respect to FIGS. 1 to 4 for a further description.
  • the production of the actuating arrangement of the pump nozzle units consisting of rocker arm axis 32 and rocker arms 22 is optimized in internal combustion engines with different numbers of cylinders by only two different rocker arm axes 32 having different lengths being provided: a shorter rocker arm axis for mounting rocker arms for respective pump nozzle units for two Cylinder and a longer rocker arm axis for mounting rocker arms for respective pump nozzle units for three cylinders.
  • the shorter rocker arm axis 32 is supported on three bearing blocks 28 and the longer rocker arm axis 32 is supported on four bearing blocks 28.
  • internal combustion engines can be equipped with any number of cylinders, in particular with two, three, four, five, six, eight or twelve cylinders.
  • a rocker arm shaft 32 for three rocker arms 22 is combined with a rocker arm shaft 32 for two rocker arms 22, a joint of the two rocker arm axes 32 being arranged in the bearing area of a bearing block 28.
  • the respective lengths of the two rocker arm axles 32 of different lengths are selected such that they protrude only halfway into the two outer bearing blocks.

Landscapes

  • 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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP98956849A 1997-11-26 1998-10-16 Culasse destinee a un moteur a combustion interne dote d'une unite gicleur de pompe Expired - Lifetime EP1034358B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19752381A DE19752381A1 (de) 1997-11-26 1997-11-26 Zylinderkopf für eine Brennkraftmaschine mit Pumpedüse-Einheit
DE19752381 1997-11-26
PCT/EP1998/006579 WO1999028602A1 (fr) 1997-11-26 1998-10-16 Culasse destinee a un moteur a combustion interne dote d'une unite gicleur de pompe

Publications (2)

Publication Number Publication Date
EP1034358A1 true EP1034358A1 (fr) 2000-09-13
EP1034358B1 EP1034358B1 (fr) 2003-04-02

Family

ID=7849866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98956849A Expired - Lifetime EP1034358B1 (fr) 1997-11-26 1998-10-16 Culasse destinee a un moteur a combustion interne dote d'une unite gicleur de pompe

Country Status (8)

Country Link
US (1) US6431138B1 (fr)
EP (1) EP1034358B1 (fr)
JP (1) JP2001525513A (fr)
KR (1) KR20010032359A (fr)
CN (1) CN1096541C (fr)
AT (1) ATE236346T1 (fr)
DE (2) DE19752381A1 (fr)
WO (1) WO1999028602A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2339134A1 (fr) 2009-12-23 2011-06-29 Amadeo Marti Carbonell S.A. Améliorations de lubrification des sièges d'un arbre à cames et gaine de culbuteur dans un moteur à combustion interne
EP2365194A1 (fr) 2010-03-04 2011-09-14 Amadeo Marti Carbonell S.A. Amélioration de la lubrification des siéges d'un arbre à cames et gaine du culbuteur dans un moteur à combustion interne

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3652598B2 (ja) * 2000-11-22 2005-05-25 本田技研工業株式会社 内燃機関
DE10209131A1 (de) * 2002-03-01 2003-09-11 Volkswagen Ag Brennkraftmaschine mit Pumpe-Düse-Elementen
DE102008039038B4 (de) 2008-08-21 2021-01-28 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
DE202008018657U1 (de) 2008-08-21 2017-11-20 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
CN101956625B (zh) * 2010-10-31 2013-03-20 无锡开普动力有限公司 一种气缸盖的润滑结构
CN106089345A (zh) * 2016-08-18 2016-11-09 东风朝阳朝柴动力有限公司 带润滑功能的中间摇臂座
EP3404224A1 (fr) * 2017-05-19 2018-11-21 Winterthur Gas & Diesel AG Dispositif de lubrification pour un gros moteur diesel, procédé de lubrification de cylindre d'un gros moteur diesel et gros moteur diesel
DE102017118862A1 (de) 2017-08-18 2019-02-21 Man Truck & Bus Ag Vorrichtung zum drehbaren Lagern einer Nockenwelle
CN111648834B (zh) * 2020-06-22 2021-07-06 东风商用车有限公司 一种凸轮轴座总成及轴承座总成组

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Publication number Priority date Publication date Assignee Title
DE2930337A1 (de) * 1979-07-26 1981-02-19 Maschf Augsburg Nuernberg Ag Ventilsteuermechanismus fuer ein- bzw. auslassventile von brennkraftmaschinen
GB2090911B (en) * 1980-11-28 1984-06-27 Yanmar Diesel Engine Co Overhead cam type diesel engine
JPS5958109A (ja) * 1982-09-27 1984-04-03 Honda Motor Co Ltd 動弁系の潤滑油供給構造
SE458048B (sv) * 1983-06-20 1989-02-20 Yanmar Diesel Engine Co Vipparmskammaranordning i en dieselmotor
AT403944B (de) * 1987-03-23 1998-06-25 Avl Verbrennungskraft Messtech Einspritzbrennkraftmaschine
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
GB2268543B (en) * 1992-07-10 1996-01-10 Volkswagen Ag Cylinder head,having a pumping nozzle unit,for an internal combustion engine
DE4232783C2 (de) 1992-07-10 2000-06-08 Volkswagen Ag Zylinderkopf für eine Brennkraftmaschine mit einer Pumpedüse-Einheit
JP3333667B2 (ja) * 1995-08-09 2002-10-15 本田技研工業株式会社 Ｓｏｈｃ型エンジンの動弁装置
DE19634541A1 (de) 1995-09-09 1997-03-13 Volkswagen Ag Verfahren zum Herstellen einer Lageranordnung in einem Zylinderkopf einer Brennkraftmaschine
US5778841A (en) * 1997-02-26 1998-07-14 Cummins Engine Company, Inc. Camshaft for internal combustion engines
DE19814836A1 (de) * 1997-04-11 1998-10-15 Volkswagen Ag Kraftstoffversorgung von Einspritzdüsen einer Brennkraftmaschine
DE19826286A1 (de) * 1998-06-12 1999-12-16 Volkswagen Ag Zylinderkopf für Verbrennungsmotoren und Verfahren zu seiner Herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9928602A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2339134A1 (fr) 2009-12-23 2011-06-29 Amadeo Marti Carbonell S.A. Améliorations de lubrification des sièges d'un arbre à cames et gaine de culbuteur dans un moteur à combustion interne
EP2365194A1 (fr) 2010-03-04 2011-09-14 Amadeo Marti Carbonell S.A. Amélioration de la lubrification des siéges d'un arbre à cames et gaine du culbuteur dans un moteur à combustion interne

Also Published As

Publication number Publication date
DE59807768D1 (de) 2003-05-08
KR20010032359A (ko) 2001-04-16
JP2001525513A (ja) 2001-12-11
CN1096541C (zh) 2002-12-18
DE19752381A1 (de) 1999-05-27
US6431138B1 (en) 2002-08-13
ATE236346T1 (de) 2003-04-15
WO1999028602A1 (fr) 1999-06-10
EP1034358B1 (fr) 2003-04-02
CN1280650A (zh) 2001-01-17

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