EP1034358B1 - 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 Download PDF

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Publication number
EP1034358B1
EP1034358B1 EP98956849A EP98956849A EP1034358B1 EP 1034358 B1 EP1034358 B1 EP 1034358B1 EP 98956849 A EP98956849 A EP 98956849A EP 98956849 A EP98956849 A EP 98956849A EP 1034358 B1 EP1034358 B1 EP 1034358B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
lubricant supply
lubricant
rocker arm
supply duct
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
EP98956849A
Other languages
German (de)
English (en)
Other versions
EP1034358A1 (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

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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, at least one bearing block with one bearing half on the cylinder head for a camshaft and a bearing half for a rocker arm axis for rocker arms for Actuation of the pump nozzle unit is provided, according to the preamble of the claim 1.
  • a generic cylinder head is known from DE 42 32 783 A1.
  • a pump nozzle unit is on a rocker arm axle and bearing blocks for this on the cylinder head attached so that a mounting flange is omitted and therefore the unit itself laterally has low projection.
  • DE 196 34 541 A1 also describes a method for Manufacture of such a bearing arrangement is known.
  • the US-PS 4,537,166 describes cylinder heads, the half bearings for a camshaft form and carry axes of actuating levers for intake and exhaust valves; the cams the camshaft work on these operating levers.
  • Parallel to a hole for one Fastening screw that passes through a hollow shaft for the actuating lever runs an oil supply channel, which consists of two aligned individual channels and in the Interior of the shaft opens; this interior serves as an oil channel. From him or an enlarged area of the hole for the fastening screw goes into Connecting channel to the camshaft bearing. So in practice there is one Series connection of the oil supplies of actuating levers and the camshaft, due to the complexity of the oil paths in the area of the shaft for the Operating levers also uncertainties regarding the oil supplies in the both systems can occur.
  • the present invention has for its object an improved cylinder head of the type mentioned above, in which the functional reliability of the Unit consisting of camshaft, rocker arm axis, rocker arms, pump nozzle unit and gas exchange valves is easily increased.
  • the lubricant supply to the bearing surface a first separate lubricant supply channel for the rocker arm axis in the cylinder head, which is connected to a lubricant gallery, and in the bearing block a second separate lubricant supply channel is provided, one first end of the second lubricant supply channel with the first lubricant supply channel communicates 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 an above-mentioned groove in the bearing bed a targeted guidance of the lubricant to a precisely predetermined one Point, namely the second end of the second lubricant supply channel, with one, among others through a cross section of the lubricant supply channel, exactly predetermined throughput of lubricant, since no flat Distribution, as in a groove, but a targeted guidance of the lubricant in the Channel takes place.
  • a simple combination of just two different components for implementation an actuating arrangement of pump nozzle units in the manufacture of internal combustion engines with different number 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 for respective pump nozzle units is intended for three cylinders.
  • these two rocker arm axles are internal combustion engines with any number of Cylinders, especially with two, three, four, five, six, eight or twelve cylinders, can be equipped.
  • Cylinder head formed at least a third separate lubricant supply channel, which with a lubricant gallery or the first lubricant supply channel communicates and in a bearing surface of the camshaft in the cylinder head ends openly.
  • a simple lubricant supply of an auxiliary unit is in a preferred Embodiment of a cylinder head according to the invention in this further at least a fourth lubricant supply channel is formed.
  • the auxiliary unit is preferably a blower, a generator and / or a water pump.
  • rocker arms are expedient for actuating respective pump nozzle units arranged between bearing blocks. This advantageously reduces one space required by the arrangement.
  • the lubricant is expediently oil.
  • a fifth lubricant supply channel in the rocker arm axis formed which in connection with the second lubricant supply channel stands and directs lubricant to a bearing of the rocker arm of the pump nozzle unit.
  • FIGS. 1 to 3 of an inventive Cylinder head 10 comprises a camshaft gear 12, a camshaft 14 with cams 16 for actuating rocker arms (not shown) for tappets 18 (FIG. 3) and with Cam 20 for actuating rocker arms 22, which in turn a respective pump nozzle unit Actuate 24, which is only indicated schematically in Fig. 3.
  • the camshaft 14 is mounted in a bearing 26, which is half of the cylinder head 10 and the other half of one Bearing block 28 is formed.
  • the bearing block 28 also 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 pillow blocks 28 are also fastened with screws 48 and assembly of the cylinder head 10 is done with cylinder head screws 50.
  • An electrical connection device 34 (FIGS. 1 and 2) serves for the external connection of a electrical wiring 36 of the cylinder head 10. Open the tappets 18 or optionally close gas exchange valves 38 with respective air inlets and exhaust outlets 40 (Fig. 3).
  • the bearing block 28 has lateral lugs 42 (FIG. 2). These are, for example machined from the one-piece bearing block 30.
  • Fig. 3 shows a section substantially along the line A-A of Fig. 1, wherein however, the section plane in the direction perpendicular to the line A-A and perpendicular to the plane of the drawing 1 is not smooth, but to illustrate various components which do not lie in one plane, also have step transitions.
  • the section in Fig. 3 is chosen such that an inventive design of the lubricant supply is more clearly visible.
  • there is a first separate lubricant supply channel in the cylinder head 10 52 is provided, which in connection with a lubricant gallery 54 stands and is supplied by this with lubricants, for example oil.
  • separate lubricant supply channel essentially means that the Lubricant supply channel from all screw holes or other den Bearing block or the cylinder head through holes is spaced. With others Words are “separate” lubricant supply channels not with screw holes combined.
  • the bearing block 28 has a second separate lubricant supply channel 56, whose lower end in FIG. 3 with the bearing block assembled 28 is aligned with the first lubricant supply channel 52, 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 one first lubricant supply channel 52 opposite opening 58 in a bearing surface 60 of the bearing 30 in the bracket 28.
  • This opening 30 is the rocker arm axis 32 lubricants supplied.
  • This fifth lubricant supply channel 68 then leads the lubricant to a bearing of the rocker arm 22, at which this performs a back-and-forth movement about the rocker arm axis 32.
  • a third separate lubricant supply channel 62 is provided, which with the lubricant gallery 54 or the first lubricant supply channel 52 communicates with an open end 64 in a bearing surface 66 ends in the bearing half of the cylinder head 10. In this way, the camp 26 of the camshaft 14 supplied with lubricant.
  • Fig. 2 further illustrates that in the cylinder head 10, a fourth separate lubricant supply channel 70 is provided, which on the one hand with the lubricant gallery 54 is connected and on the other hand lubricant to an auxiliary unit, not shown leads to its lubricant supply.
  • Fig. 4 shows the cylinder head 10 in the unmounted state, i.e. without camshaft, rocker arm axis, Cup tappets, pump nozzle units and bearing blocks.
  • the gas exchange valves 38 arranged in pairs, 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 recognizable.
  • screws 46, 48 and 50 are corresponding screw holes 47, 49 and 51 recognizable.
  • Fig. 5 shows in a section along line B-B of Fig. 4 the arrangement of the third Lubricant supply channel 62 for the lubricant supply to that in FIG. 5 is not 6 and shows a section along line C-C of FIG. 4 the arrangement of the fourth lubricant supply channel 70 for lubricant supply of an auxiliary unit, not shown. All other components are with appropriate Reference numerals as in Figures 1 to 4, so that with respect to a further description to the above statements with reference to Figures 1 to 4 becomes.
  • the manufacture of the actuator assembly of the pump nozzle units consisting of Rocker arm axis 32 and rocker arms 22 is different in internal combustion engines Number of cylinders optimized in that only two different rocker arm axes 32 with different lengths are provided: A shorter rocker arm axis for assembly of rocker arms for respective pump nozzle units for two cylinders and a longer one Rocker arm axis for mounting rocker arms for respective pump nozzle units for three Cylinder.
  • the shorter rocker arm axis 32 is on three bearing blocks 28 and the longer one Rocker arm axis 32 supported on four pedestals 28.
  • By appropriate combination only these two different rocker arm axles 32 are internal combustion engines with any number of cylinders, especially with two, three, four, five, six, eight or twelve cylinders, can be equipped.
  • rocker arm shaft 32 for three rocker arms 22 with a rocker arm shaft 32 combined for two rocker arms 22 one abutment of the two rocker arm axes 32 is arranged in the bearing area of a bearing block 28.
  • rocker arm axles 32 There are the respective lengths of the two differently long rocker arm axles 32 selected such that they are in the Only protrude half of each of 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)

Claims (8)

  1. Culasse de cylindre (10) pour un moteur à combustion interne comprenant au moins une unité de gicleur de pompe (24), sur laquelle est prévu au moins un bloc-palier (28) avec une moitié de palier pour un arbre à cames (14) et une moitié de palier pour un axe de levier oscillant (32) pour au moins un levier oscillant (22) commandé par came par l'arbre à cames (14) en vue de l'actionnement de l'unité de gicleur de pompe (24), la culasse de cylindre et le bloc-palier (28) présentant des trous (47, 49, 51) au moins pour des vis de fixation (46, 48, 50), caractérisée en ce que, dans la culasse de cylindre, à distance des trous (47, 49, 51), est prévu un premier conduit d'alimentation en lubrifiant séparé (52) partant d'une galerie de lubrifiant (54), et dans le bloc-palier (28), est prévu un deuxième conduit d'alimentation en lubrifiant séparé (56) espacé des trous (47, 49, 51), lequel se prolonge en affleurement, par l'une de ses extrémités, en le premier conduit d'alimentation en lubrifiant (52), tandis que sa deuxième extrémité (58) s'ouvre sur une face d'appui (60) pour l'axe du levier oscillant (32), et en ce qu'au moins un troisième conduit d'alimentation en lubrifiant séparé (62) est réalisé dans la culasse de cylindre (10), lequel est en liaison avec la galerie de lubrifiant (54) ou avec le premier conduit d'alimentation en lubrifiant (52) et s'ouvre sur une face d'appui (66) pour l'arbre à cames (14) dans la culasse de cylindre (10).
  2. Culasse de cylindre selon la revendication 1, caractérisée en ce que dans le moteur à combustion interne, seulement des axes de leviers oscillants (32) sont prévus avec des leviers oscillants (22) pour chaque unité de gicleur de pompe (24) pour deux cylindres et des axes de leviers oscillants (32) sont prévus avec des leviers oscillants (22) pour chaque unité de gicleur de pompe (24) pour trois cylindres.
  3. Culasse de cylindre selon l'une quelconque des revendications précédentes, caractérisée en ce que dans la culasse de cylindre (10) est réalisé en outre au moins un quatrième conduit d'alimentation en lubrifiant (70) pour l'alimentation en lubrifiant d'une unité auxiliaire.
  4. Culasse de cylindre selon la revendication 3, caractérisée en ce que le quatrième conduit d'alimentation en lubrifiant (10) est connecté à la galerie de lubrifiant (54).
  5. Culasse de cylindre selon l'une quelconque des revendications 3 ou 4, caractérisée en ce que l'unité auxiliaire est une soufflante, un générateur et/ou une pompe à eau.
  6. Culasse de cylindre selon l'une quelconque des revendications précédentes, caractérisée en ce que les leviers oscillants (22) pour l'actionnement de chaque unité de gicleur de pompe (24) sont disposés entre les blocs-paliers (28).
  7. Culasse de cylindre selon l'une quelconque des revendications précédentes, caractérisée en ce que le lubrifiant est de l'huile.
  8. Culasse de cylindre selon l'une quelconque des revendications précédentes, caractérisée en ce que dans l'axe du levier oscillant (32) est réalisé un cinquième conduit d'alimentation en lubrifiant (68) qui est en liaison avec le deuxième conduit d'alimentation en lubrifiant (56) et qui conduit du lubrifiant à un point d'appui du levier oscillant respectif (22) de l'unité de gicleur de pompe (24).
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
DE19752381 1997-11-26
DE19752381A DE19752381A1 (de) 1997-11-26 1997-11-26 Zylinderkopf für eine Brennkraftmaschine mit Pumpedüse-Einheit
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 EP1034358A1 (fr) 2000-09-13
EP1034358B1 true 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)

Families Citing this family (11)

* 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
DE202008018657U1 (de) 2008-08-21 2017-11-20 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
DE102008039038B4 (de) 2008-08-21 2021-01-28 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
WO2011086201A2 (fr) 2009-12-23 2011-07-21 Amadeo Marti Carbonell, S.A. Améliorations apportées à la lubrification des sièges d'un arbre à cames et d'un axe de culbuteurs dans un moteur à combustion interne
WO2011107623A1 (fr) * 2010-03-04 2011-09-09 Amadeo Martí Carbonell, S.A. Améliorations apportées à la lubrification de sièges d'un arbre à cames et d'un axe de culbuteurs dans un moteur à combustion interne
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

Citations (1)

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Publication number Priority date Publication date Assignee Title
US4537166A (en) * 1982-09-27 1985-08-27 Honda Giken Kogyo Kabushiki Kaisha Lubricating arrangement in valve mechanism of an overhead camshaft engine

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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
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
DE4232783C2 (de) 1992-07-10 2000-06-08 Volkswagen Ag Zylinderkopf für eine Brennkraftmaschine mit einer Pumpedüse-Einheit
GB2268543B (en) * 1992-07-10 1996-01-10 Volkswagen Ag Cylinder head,having a pumping nozzle unit,for an internal combustion engine
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

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US4537166A (en) * 1982-09-27 1985-08-27 Honda Giken Kogyo Kabushiki Kaisha Lubricating arrangement in valve mechanism of an overhead camshaft engine

Also Published As

Publication number Publication date
DE59807768D1 (de) 2003-05-08
CN1096541C (zh) 2002-12-18
WO1999028602A1 (fr) 1999-06-10
CN1280650A (zh) 2001-01-17
US6431138B1 (en) 2002-08-13
EP1034358A1 (fr) 2000-09-13
DE19752381A1 (de) 1999-05-27
ATE236346T1 (de) 2003-04-15
JP2001525513A (ja) 2001-12-11
KR20010032359A (ko) 2001-04-16

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