EP1998034A2 - Coiffe de tête de cylindre - Google Patents

Coiffe de tête de cylindre Download PDF

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Publication number
EP1998034A2
EP1998034A2 EP08156342A EP08156342A EP1998034A2 EP 1998034 A2 EP1998034 A2 EP 1998034A2 EP 08156342 A EP08156342 A EP 08156342A EP 08156342 A EP08156342 A EP 08156342A EP 1998034 A2 EP1998034 A2 EP 1998034A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
head cover
bearing
cylinder
bearing upper
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
EP08156342A
Other languages
German (de)
English (en)
Other versions
EP1998034A3 (fr
EP1998034B1 (fr
Inventor
Robert Dunsch
Stefan Ruppel
Torsten Schellhase
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP1998034A2 publication Critical patent/EP1998034A2/fr
Publication of EP1998034A3 publication Critical patent/EP1998034A3/fr
Application granted granted Critical
Publication of EP1998034B1 publication Critical patent/EP1998034B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02F7/00—Casings, e.g. crankcases or frames
    • 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
    • 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
    • F01L1/02—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
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the present invention relates to a cylinder head cover for covering a cylinder crankcase of an internal combustion engine according to the preamble of claim 1.
  • a cylinder head cover for a cylinder head is known, in which first bearing halves are formed integrally with the cylinder head cover for all camshaft bearing a camshaft.
  • the second bearing halves are formed as separate parts and bolted to the first bearing halves, wherein a dividing plane between the cylinder head and cylinder head cover spaced from a dividing plane of the camshaft bearing is formed.
  • the present invention is concerned with the problem of providing an improved embodiment of a generic cylinder head cover, which facilitates in particular a mounting of the cylinder head cover on the camshaft and at the same time ensures a reliable bearing of the camshaft.
  • the invention is based on the general idea, in a cylinder head cover for covering a cylinder crankcase, these and at least one bearing shell for a camshaft to match so that they can be set with a common mounting screw on the cylinder crankcase.
  • the bearing upper part should be made of a material which has other material properties, in particular better storage properties compared to the cylinder head cover.
  • the at least one upper bearing part has at least one through opening, which on the one hand has a screw-in / through-hole in a lower part of the bearing and / or one Screw-in in the cylinder crankcase and on the other hand aligned with a through hole in the cylinder head cover so that the above-mentioned attaching the cylinder head cover and the bearing shell is possible via a common mounting screw.
  • the bearing upper part Due to the different material properties of the at least one bearing upper part and the cylinder head cover, the bearing upper part can be designed such that it has particularly good bearing properties for the camshaft to be supported, while these properties do not have to have the cylinder head cover, so that for these a specially optimized for their application, other material can be selected.
  • the cylinder head cover according to the invention thereby enables on the one hand a simplified assembly of the cylinder head cover on the camshaft, since this can be determined together with the bearing upper part and on the other hand it improves the bearing properties, as for the bearing upper part a special, selected with particularly good storage properties material is used.
  • each of the upper bearing parts may have a fastening screw, which fastened exclusively to the upper bearing part on the cylinder crankcase or the bearing shell together with the cylinder head cover.
  • the cylinder head cover is formed from a thermoplastic material
  • the Lürobeteil is formed from a thermosetting plastic.
  • Thermoplastics are plastics that can be easily deformed in a certain temperature range, namely thermoplastic. The process is reversible. This makes it possible to produce the cylinder head cover by injection molding.
  • thermosets are plastics that can not be reshaped after they have hardened. Duroplast thus remain dimensionally stable even at higher temperatures, which is particularly advantageous for the design of the upper bearing parts.
  • a bearing base for the camshaft formed from a thermosetting plastic, wherein the Lagerunter- and the bearing upper part can be formed as separate components or in one piece.
  • the two bearing parts are designed as separate components and therefore can be fixed together with the cylinder head cover on the cylinder crankcase via a common fastening screw.
  • a cylinder head 1 has a camshaft 2 mounted in a cylinder crankcase 14, which is mounted upwardly above at least one bearing upper part 3.
  • the cylinder crankcase 14 is covered by a cylinder head cover 4.
  • the at least one bearing upper part 3 for the camshaft 2 has at least one through-opening 5, which on the one hand has a screw-in / through-hole 5a in a bearing base 6 (cf. Fig. 6 ) and / or a screw-5b in the cylinder crankcase 14 and on the other hand with a through hole 5c in the cylinder head cover 4 is aligned.
  • a fastening of the cylinder head cover 4 and the bearing upper part 3 on the cylinder crankcase 14 via a common fastening screw 7 is possible.
  • the bearing upper part 3 can additionally be fastened with a fastening screw 7 'on the cylinder crankcase 14 or on a bearing base 6, which does not serve for the simultaneous fastening of the cylinder head cover 4.
  • the bearing upper part 3 is made of a material which has different material properties, as the cylinder cap 4th
  • the at least one bearing upper part 3 is formed as a separate component from the cylinder head cover 4, wherein on the cylinder head cover 4 locking elements, in particular locking bracket 8, are arranged, which allow latching of the at least one bearing shell 3 on the cylinder head cover 4.
  • locking elements in particular locking bracket 8
  • the bearing shell 3 is first bolted by the screw 7 'to the bearing base 6 and the cylinder crankcase 14 and then the cylinder head cover 4 is latched by the locking bracket 8 with the bearing shell 3, so that then the fastening screw 7 through the cylinder head cover 4, the Bearing upper part 3 can be screwed into the bearing base 6 and in the cylinder crankcase 14.
  • the fastening screw 7 is formed as a collar screw and may have a provided between the cylinder head cover 4 and the bearing shell 3 collar 9.
  • the cylinder head cover 4 is sealed relative to the cylinder crankcase 14 via a seal 10 extending along a flange and a seal 10 'arranged between the screw head and the cylinder head cover 4.
  • the at least one bearing upper part 3 has at least one sleeve extension 11 aligned with the passage opening 5c in the cylinder head cover 4, which engages in the passage opening 5c of the cylinder head cover 4 when the cylinder head cover 4 is mounted and forms a stop for a screw head of the fastening screw 7.
  • two fastening screws 7 may be provided, which cross both the cylinder head cover 4 and the upper bearing part 3.
  • the locking bracket 8 according to the Figures 2 and 3 can be molded onto the cylinder head cover 4.
  • Fig. 4 an embodiment of the cylinder head 1 according to the invention is shown, in which the bearing upper part 3 is formed as a bearing frame. In this case, a seal 10 "between the bearing upper part 3 and the cylinder crankcase 14 is provided.
  • the bearing upper part 3 formed integrally with the cylinder head cover 4, wherein it can be provided that the cylinder head cover 4 is formed of a thermoplastic material and the bearing shell 3 made of a thermosetting plastic.
  • the specific advantages of the individual types of plastic have already been mentioned in the introduction to the description. It is conceivable in this case that the upper bearing part 3 is molded onto the cylinder head cover 4 and, optionally, an additional bearing shell 12, in particular of aluminum, can be provided in the bearing upper part 3.
  • the bearing base 6 made of plastic, in particular thermosetting plastic formed, wherein the bearing base 6 and the bearing shell 3 may be formed either as separate components or in one piece.
  • the camshaft 2 is completely encapsulated.
  • the composite of the two bearing parts 3 and 6 bearing can either turn separately to the cylinder head cover 4 or integrally molded, in particular molded onto this.
  • the bearing base 6 has an oil supply passage 13 for supplying the camshaft bearing with lubricant.
  • the cylinder head cover 4 and the associated bearing upper part 3 and / or the lower bearing part 6 is constructed as a hybrid component of at least two different materials.
  • bearing shown which consists of the contiguous bearing base 6 and the associated bearing upper part 3, offers the great advantage of completely overmolding the camshaft 2 and to dispense with the machining of a camshaft bearing entirely.

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)
EP08156342.1A 2007-05-30 2008-05-16 Coiffe de tête de cylindre Expired - Fee Related EP1998034B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007025129A DE102007025129A1 (de) 2007-05-30 2007-05-30 Zylinderkopfhaube

Publications (3)

Publication Number Publication Date
EP1998034A2 true EP1998034A2 (fr) 2008-12-03
EP1998034A3 EP1998034A3 (fr) 2009-11-04
EP1998034B1 EP1998034B1 (fr) 2014-02-12

Family

ID=39735351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08156342.1A Expired - Fee Related EP1998034B1 (fr) 2007-05-30 2008-05-16 Coiffe de tête de cylindre

Country Status (4)

Country Link
US (1) US7845322B2 (fr)
EP (1) EP1998034B1 (fr)
JP (1) JP5124343B2 (fr)
DE (1) DE102007025129A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083287A1 (fr) * 2007-12-31 2009-07-09 Mahle International Gmbh Couvercle de culasse
WO2009095215A1 (fr) * 2008-01-31 2009-08-06 Thyssenkrupp Presta Teccenter Ag Module d’arbre à came
CN103925102A (zh) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 复合式气缸盖
EP2546504A3 (fr) * 2011-07-14 2015-01-21 MAHLE International GmbH Moteur à combustion
WO2015197410A1 (fr) * 2014-06-27 2015-12-30 Polytec Plastics Germany Gmbh & Co. Kg Capot de tête de cylindre d'un véhicule automobile
CN106662037A (zh) * 2014-06-27 2017-05-10 爱尔铃克铃尔股份公司 气缸盖罩和制造气缸盖罩的方法
DE102016115237A1 (de) 2016-08-17 2018-03-08 Thyssenkrupp Ag Nockenwellenmodul, Dichtung und Verfahren zur Herstellung eines Nockenwellenmoduls
FR3090748A1 (fr) * 2018-12-20 2020-06-26 Renault Sas Culasse comprenant un moyen de positionnement pour un demi-palier inférieur
US20220275770A1 (en) * 2021-02-26 2022-09-01 Mahle International Gmbh Cylinder head cover

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007063257A1 (de) * 2007-12-31 2009-07-02 Mahle International Gmbh Lagereinrichtung
JP4801720B2 (ja) 2008-12-09 2011-10-26 トヨタ紡織株式会社 複合部材の固定構造
WO2011046110A1 (fr) * 2009-10-13 2011-04-21 本田技研工業株式会社 Procédé de fixation pour élément de couvercle et structure de fixation pour cache-culbuteurs
DE102012007334A1 (de) * 2012-04-12 2013-10-17 Neumayer Tekfor Holding Gmbh Verfahren zum Herstellen eines Nockenwellenmoduls und entsprechendes Nockenwellenmodul
DE102014106925B4 (de) * 2014-05-16 2017-05-11 Thyssenkrupp Presta Teccenter Ag Lagerbrücke zur Lagerung einer Nockenwelle
JP2018031260A (ja) * 2015-01-08 2018-03-01 三菱自動車工業株式会社 シリンダヘッド
US9725051B2 (en) * 2015-05-01 2017-08-08 Ford Global Technologies, Llc Engine cover assembly feature
DE102015211068B4 (de) * 2015-06-17 2021-09-16 Thyssenkrupp Ag Kombinationsmodul aufweisend einen Einlegering und ein Befestigungselement
DE102015224440A1 (de) * 2015-12-07 2017-06-08 Mahle International Gmbh Zylinderkopfhaube
JP6637357B2 (ja) * 2016-03-28 2020-01-29 本田技研工業株式会社 パワーユニット
DE102016121480B4 (de) * 2016-11-09 2023-07-27 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Verfahren zur Herstellung eines Nockenwellenmoduls
DE102017213684A1 (de) * 2017-08-07 2019-02-07 Mahle International Gmbh Modul aus einer Zylinderkopfhaube und einem Nockenwellenlager, Verbund des Moduls mit einem Zylinderkopf sowie Verfahren zum Herstellen dieses Verbunds
DE102017118862A1 (de) 2017-08-18 2019-02-21 Man Truck & Bus Ag Vorrichtung zum drehbaren Lagern einer Nockenwelle
DE102018205982A1 (de) * 2018-04-19 2019-10-24 Mahle International Gmbh Lagerrahmen oder Zylinderkopfhaube einer Brennkraftmaschine
WO2021130726A1 (fr) * 2019-12-24 2021-07-01 Fleetguard Filters Private Limited Calotte de cylindre pour moteur à combustion interne

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DE4017048A1 (de) 1990-05-26 1991-11-28 Opel Adam Ag Zylinderkopf
DE4323073A1 (de) 1993-07-10 1995-01-12 Audi Ag Hubkolben-Brennkraftmaschine
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DE20120912U1 (de) 2001-12-24 2002-06-06 Volkswagen Ag Zylinderkopfhaube für eine Brennkraftmaschine
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Publication number Priority date Publication date Assignee Title
DE4017048A1 (de) 1990-05-26 1991-11-28 Opel Adam Ag Zylinderkopf
DE4323073A1 (de) 1993-07-10 1995-01-12 Audi Ag Hubkolben-Brennkraftmaschine
DE19853537A1 (de) 1998-11-20 2000-05-25 Audi Ag Brennkraftmaschine
DE20120912U1 (de) 2001-12-24 2002-06-06 Volkswagen Ag Zylinderkopfhaube für eine Brennkraftmaschine
DE102005028332A1 (de) 2005-06-18 2007-01-04 Daimlerchrysler Ag Zylinderkopfhaube

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083287A1 (fr) * 2007-12-31 2009-07-09 Mahle International Gmbh Couvercle de culasse
US9175636B2 (en) 2007-12-31 2015-11-03 Mahle International Gmbh Cylinder head cover
WO2009095215A1 (fr) * 2008-01-31 2009-08-06 Thyssenkrupp Presta Teccenter Ag Module d’arbre à came
US8590499B2 (en) 2008-01-31 2013-11-26 Thyssenkrupp Presta Teccenter Ag Camshaft module for attachment to a cylinder head of an internal combustion engine
EP2546504A3 (fr) * 2011-07-14 2015-01-21 MAHLE International GmbH Moteur à combustion
EP2546504B1 (fr) 2011-07-14 2018-10-03 MAHLE International GmbH Moteur à combustion
CN103925102A (zh) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 复合式气缸盖
CN103925102B (zh) * 2014-05-07 2015-04-01 广西玉柴机器股份有限公司 复合式气缸盖
CN106662037A (zh) * 2014-06-27 2017-05-10 爱尔铃克铃尔股份公司 气缸盖罩和制造气缸盖罩的方法
WO2015197410A1 (fr) * 2014-06-27 2015-12-30 Polytec Plastics Germany Gmbh & Co. Kg Capot de tête de cylindre d'un véhicule automobile
US10208663B2 (en) 2014-06-27 2019-02-19 Polytec Plastics Germany Gmbh & Co. Kg Cylinder head cover for a motor vehicle
US10533517B2 (en) 2014-06-27 2020-01-14 Elringklinger Ag Cylinder head cover and method for producing a cylinder head cover
DE102016115237A1 (de) 2016-08-17 2018-03-08 Thyssenkrupp Ag Nockenwellenmodul, Dichtung und Verfahren zur Herstellung eines Nockenwellenmoduls
DE102016115237B4 (de) 2016-08-17 2019-06-13 Thyssenkrupp Ag Nockenwellenmodul, Dichtung und Verfahren zur Herstellung eines Nockenwellenmoduls
DE102016115237C5 (de) 2016-08-17 2023-11-16 Thyssenkrupp Ag Nockenwellenmodul, Dichtung und Verfahren zur Herstellung eines Nockenwellenmoduls
FR3090748A1 (fr) * 2018-12-20 2020-06-26 Renault Sas Culasse comprenant un moyen de positionnement pour un demi-palier inférieur
US20220275770A1 (en) * 2021-02-26 2022-09-01 Mahle International Gmbh Cylinder head cover

Also Published As

Publication number Publication date
US20080295796A1 (en) 2008-12-04
JP5124343B2 (ja) 2013-01-23
EP1998034A3 (fr) 2009-11-04
US7845322B2 (en) 2010-12-07
DE102007025129A1 (de) 2008-12-04
JP2008298072A (ja) 2008-12-11
EP1998034B1 (fr) 2014-02-12

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