EP0744530A1 - Culasse - Google Patents

Culasse Download PDF

Info

Publication number
EP0744530A1
EP0744530A1 EP95107781A EP95107781A EP0744530A1 EP 0744530 A1 EP0744530 A1 EP 0744530A1 EP 95107781 A EP95107781 A EP 95107781A EP 95107781 A EP95107781 A EP 95107781A EP 0744530 A1 EP0744530 A1 EP 0744530A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
valves
valve
internal combustion
combustion engine
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.)
Ceased
Application number
EP95107781A
Other languages
German (de)
English (en)
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 EP95107781A priority Critical patent/EP0744530A1/fr
Priority to JP8117899A priority patent/JPH09137705A/ja
Priority to KR1019960017146A priority patent/KR100405588B1/ko
Publication of EP0744530A1 publication Critical patent/EP0744530A1/fr
Ceased legal-status Critical Current

Links

Images

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 
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve 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
    • 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
    • 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
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle 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
    • 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
    • F02B2275/18—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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • 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

Definitions

  • the invention relates to a cylinder head for an internal combustion engine comprising several cylinders according to the preamble of claim 1.
  • a cylinder head which comprises a cover which receives the intake camshafts and the exhaust camshafts.
  • This cover which extends over the entire length of the internal combustion engine, on the one hand causes high weight and on the other hand it makes it difficult to actuate the rocker arms;
  • the assembly and accessibility to the play compensation elements for the rocker arms is also very complex.
  • the accommodation of the rocker arm rotation axes inside and outside the V-shaped cylinder head area formed by valves impairs a favorable arrangement of the spark plugs. In other words: the design principles supporting the free and sensible design of the cylinder head cannot be derived from this version.
  • the object of the invention is therefore to provide a cylinder head for a reciprocating piston internal combustion engine of the four-stroke type, which is characterized by simple, simple and easy assembly of its components by clear, compact and also weight-optimized design.
  • the cylinder head has a clear concept in which the components such as camshaft, rocker arm, valves and spark plugs are arranged teleologically.
  • this design enables a compact, rigid and also weight-saving design.
  • the chosen one Valve angle ensures not only for a defined internal combustion engine size - e.g. 1000 cc - that drive wheels can be arranged on the two camshafts, which are driven by a single belt drive, but also that sufficient squeeze areas that support the combustion process can be provided in the combustion chamber.
  • the bearing brackets are components that are inexpensive to manufacture and hold the two camshafts securely in place.
  • a multi-cylinder internal combustion engine 1 of the four-stroke design - four cylinders approx. 1000 cc - comprises an only indicated cylinder crankcase 2 with cylinders 3 for piston 5 and a crankshaft, not shown.
  • the cylinder crankcase 2 carries a cylinder head 6, the free side 7 of which is covered with a valve cover 8.
  • an intake camshaft 11 and an exhaust camshaft 12 are arranged in the cylinder head 6 at a parallel distance from one another, their distance from a central longitudinal plane AA of the internal combustion engine 1 being approximately the same.
  • the intake camshaft 11 and the exhaust camshaft 12 actuate the intake valves 13, 13 'and exhaust valves 14, 14' arranged in the cylinder head 6 with the aid of rocker arms 15 and 16, each cam 17 of the two camshafts 11, 12 cooperates with rollers 18, ie, the rocker arms 15, 16 are so-called roller rocker arms.
  • the intake valves 13, 13 'and the exhaust valves 14, 14', per cylinder 3, two intake valves and two exhaust valves are provided, are aligned at an acute angle to a longitudinal plane BB and include a valve angle ⁇ of 30 °, which is also 29 ° or 31 °.
  • the angle ⁇ between the longitudinal plane B-B and inlet valves 13, 13 ' is 14 ° or between 13 ° 30 and 15 °.
  • the angle ⁇ between the longitudinal plane B-B and the outlet valves 14, 14 ' is 16 ° or between 15 ° 30' or 16 ° 30 '.
  • the rocker arms 15, 16 lie with their axes of rotation 19, 20 outside a V-shaped cylinder head region 21, which is defined by the angle lines 22, 23 forming the valve angle ⁇ .
  • the centers 24, 25 of the camshafts 11, 12 also assume this position.
  • spark plugs 26 are accommodated, which extend along the central longitudinal plane A-A.
  • the inlet valves 13, 13 'and the outlet valves 14, 14' comprise valve disks 27, 27 'and 28, 28', the gas flows in a combustion chamber 29 through the piston 5 - in its top dead center position - and a gable roof-shaped recess 30 in the cylinder head 6 is formed, control.
  • 6 inlet channels 31 and outlet channels 32 are incorporated in the cylinder head.
  • squeeze surfaces 34, 35 are provided, which are designed in the form of a circular section.
  • other squeeze surfaces 34 ', 35' can be effective which - seen in the longitudinal direction CC of the internal combustion engine - run between the cylinder wall 33 and the valve disks 27, 28 or 27 ', 28'.
  • the squeeze area 34 is larger than the squeeze area 35, which is achieved by the different angular positions - angle ⁇ ⁇ angle ⁇ , the different diameters of the valve plates 27> 28 and the longitudinal plane BB - the longitudinal median plane of the cylinders 3 - which is slightly shifted towards the inlet side with respect to the central longitudinal plane AA ; the distance between the central longitudinal plane AA and the central longitudinal plane BB - is identified by LD. Thanks to the crushing surfaces 34, 35 and the central in Combustion chamber 29 arranged spark plugs 26, an optimized ignitable mixture and when it burns good flame propagation is achieved.
  • spring plates 37 are provided, on which conical compression springs 38 are supported, the smaller diameter Dk of which rests on the respective spring plate 37; the larger diameter Dg is supported on a shoulder 39 of the cylinder head 6.
  • the intake camshaft 11 and the exhaust camshaft 12 are guided out of the cylinder head 6 on an end face 40 thereof and provided with drive wheels 41, 42 which are driven by means of a single belt drive 43 from the crankshaft, which is also provided with a drive wheel.
  • the belt drive 43 is a toothed belt drive.
  • the intake camshaft 11 is provided with an actuating device 44 which serves for the relative change in the rotational position — adjustment ranges ENs — of the intake camshaft 11 relative to the exhaust camshaft 12.
  • the valve timing is influenced by appropriate actuating processes.
  • the adjusting device 44 is accommodated in a hub 45 of the drive wheel 41, its adjusting ranges ENs being shown by way of example in FIG. 5.
  • the spark plug 26 is surrounded by a tubular guide sleeve 46, which rest in receptacles 47, 48 of the cylinder head 6 or the valve lift 8.
  • the intake camshaft 11 and the exhaust camshaft 12 are received on the one hand by bearing seats 49, 50 of the cylinder head 6 and on the other hand are held in position by only three spaced-apart bearing bridges 51, 52, 53 which run transversely to the longitudinal direction of the engine C-C.
  • the bearing bridges 51, 52 surround the guide sleeve 46 with a ring part 54 and are connected to the cylinder head 6 by means of screws 55, 56, 57, 58 extending on both sides of the camshafts 11, 12.

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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
EP95107781A 1995-05-22 1995-05-22 Culasse Ceased EP0744530A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95107781A EP0744530A1 (fr) 1995-05-22 1995-05-22 Culasse
JP8117899A JPH09137705A (ja) 1995-05-22 1996-05-13 シリンダヘッド
KR1019960017146A KR100405588B1 (ko) 1995-05-22 1996-05-21 실린더헤드

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107781A EP0744530A1 (fr) 1995-05-22 1995-05-22 Culasse

Publications (1)

Publication Number Publication Date
EP0744530A1 true EP0744530A1 (fr) 1996-11-27

Family

ID=8219272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107781A Ceased EP0744530A1 (fr) 1995-05-22 1995-05-22 Culasse

Country Status (3)

Country Link
EP (1) EP0744530A1 (fr)
JP (1) JPH09137705A (fr)
KR (1) KR100405588B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005405A1 (fr) * 1997-07-23 1999-02-04 Sergiu Valentin Lipcan Culasse de cylindre en metal leger pouvant etre fabriquee selon un procede de moulage sous pression et destinee a un moteur a combustion interne a quatre soupapes par cylindre et refroidi par liquide
EP1094213A3 (fr) * 1999-10-18 2002-03-06 Hyundai Motor Company Moteur diesel avec arbres à cames en tête

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6006276B2 (ja) * 2014-10-30 2016-10-12 本田技研工業株式会社 内燃機関

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250797A2 (fr) * 1986-06-05 1988-01-07 DUCATI MECCANICA S.p.A. Culasse à quatre soupapes à opération desmodromique pour un moteur à combustion interne
EP0344598A2 (fr) * 1988-06-01 1989-12-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Moteur à combustion interne avec une culasse à deux arbres à cames en tête
EP0420290A2 (fr) * 1989-09-29 1991-04-03 Mazda Motor Corporation Dispositif d'entraînement de soupapes pour moteur
DE4121504A1 (de) 1990-09-13 1992-03-26 Skoda Automobilova Zylinderkopf
DE4208725A1 (de) * 1991-03-18 1992-10-29 Mazda Motor Verbrennungsmotor-zylinderkopfstruktur
DE4315233A1 (de) * 1993-05-07 1994-07-28 Daimler Benz Ag Direkteinspritzende Brennkraftmaschine mit einem im Zylinderkopf zwischen Gaswechselventilen angeordneten Kraftstoffeinspritzventil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250797A2 (fr) * 1986-06-05 1988-01-07 DUCATI MECCANICA S.p.A. Culasse à quatre soupapes à opération desmodromique pour un moteur à combustion interne
EP0344598A2 (fr) * 1988-06-01 1989-12-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Moteur à combustion interne avec une culasse à deux arbres à cames en tête
EP0420290A2 (fr) * 1989-09-29 1991-04-03 Mazda Motor Corporation Dispositif d'entraînement de soupapes pour moteur
DE4121504A1 (de) 1990-09-13 1992-03-26 Skoda Automobilova Zylinderkopf
DE4208725A1 (de) * 1991-03-18 1992-10-29 Mazda Motor Verbrennungsmotor-zylinderkopfstruktur
DE4315233A1 (de) * 1993-05-07 1994-07-28 Daimler Benz Ag Direkteinspritzende Brennkraftmaschine mit einem im Zylinderkopf zwischen Gaswechselventilen angeordneten Kraftstoffeinspritzventil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005405A1 (fr) * 1997-07-23 1999-02-04 Sergiu Valentin Lipcan Culasse de cylindre en metal leger pouvant etre fabriquee selon un procede de moulage sous pression et destinee a un moteur a combustion interne a quatre soupapes par cylindre et refroidi par liquide
EP1094213A3 (fr) * 1999-10-18 2002-03-06 Hyundai Motor Company Moteur diesel avec arbres à cames en tête
US6408808B1 (en) 1999-10-18 2002-06-25 Hyundai Motor Company DOHC diesel engine cylinder head

Also Published As

Publication number Publication date
KR100405588B1 (ko) 2004-03-30
JPH09137705A (ja) 1997-05-27
KR960041676A (ko) 1996-12-19

Similar Documents

Publication Publication Date Title
DE3943727C2 (de) Zylinderkopf einer Brennkraftmaschine
EP0615058B1 (fr) Culasse pour un moteur à combustion interne
DE69124708T2 (de) Brennkraftmaschine mit einer einzeln obenliegenden Nockenwelle
DE69017614T2 (de) Zylinderkopf und Ventilanordnung für Mehrventil-Brennkraftmaschine.
DE4326159C2 (de) Mehrzylindrige Brennkraftmaschine mit V-förmig angeordneten Zylinderreihen
DE102004037198A1 (de) Ventiltrieb einer Brennkraftmaschine
DE102013224270B3 (de) Vorrichtung zur Veränderung des Verdichtungsverhältnisses einer Zylindereinheit einer Hubkolbenbrennkraftmaschine
DE102012203024A1 (de) Motorbaugruppe mit zylinderkopfölleitung
DE102011104496A1 (de) Brennkraftmaschine der Hubkolbenbauart
DE4303574C2 (de) Kipphebelanordnung
DE3841710C2 (de) Brennkraftmaschine mit einem Querstrom-Zylinderkopf, insbesondere luftgekühlter Einzel-Zylinderkopf für Motorrad-Brennkraftmaschinen
DE60119993T2 (de) Ventilsteuervorrichtung
DE3743854A1 (de) Vierventilsteuerung mit oberen abstuetzelementen
DE10348345A1 (de) Hubkolben-Brennkraftmaschine
EP0744530A1 (fr) Culasse
EP2162601B1 (fr) Moteur à combustion interne comprenant un vilebrequin et au moins une culasse ainsi que véhicule automobile muni d'un tel moteur à combustion interne
DE3935883C2 (de) Viertakt-Dieselbrennkraftmaschine
DE3611476A1 (de) Verfahren zur betaetigung von ventilen zum ladungswechsel bei brennkraftmaschinen mit direkter hydraulischer uebertragung
EP0845582B1 (fr) Commande de soupape pour un moteur à combustion interne équipé de soupapes à levée pour le transfert de charge
DE4117162A1 (de) Zylinderkopf fuer eine brennkraftmaschine
AT404388B (de) Brennkraftmaschine
DE4214800C2 (de) Viertaktbrennkraftmaschine
DE4212110A1 (de) Dieselbrennkraftmaschine
DE2943560C2 (de) Vorrichtung für einen Verbrennungsmotor
DE60109010T2 (de) Ventiltriebsystem in einer Vierzylinder-Brennkraftmaschine mit obenliegenden Ventilen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950522

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 19980706

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19990128