EP0896146B1 - Culasse pour un carter-moteur à plusieurs alésages - Google Patents

Culasse pour un carter-moteur à plusieurs alésages Download PDF

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Publication number
EP0896146B1
EP0896146B1 EP98110043A EP98110043A EP0896146B1 EP 0896146 B1 EP0896146 B1 EP 0896146B1 EP 98110043 A EP98110043 A EP 98110043A EP 98110043 A EP98110043 A EP 98110043A EP 0896146 B1 EP0896146 B1 EP 0896146B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
gas exchange
cylinder head
valve
internal combustion
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
EP98110043A
Other languages
German (de)
English (en)
Other versions
EP0896146A3 (fr
EP0896146A2 (fr
Inventor
Franz Xavier Prof. Dr. Moser
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.)
Deutz AG
Original Assignee
Deutz 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 Deutz AG filed Critical Deutz AG
Publication of EP0896146A2 publication Critical patent/EP0896146A2/fr
Publication of EP0896146A3 publication Critical patent/EP0896146A3/fr
Application granted granted Critical
Publication of EP0896146B1 publication Critical patent/EP0896146B1/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
    • 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
    • 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
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
    • 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
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • 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
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the invention relates to an internal combustion engine with a cylinder head, wherein the internal combustion engine has a crankcase, in which a crankshaft is rotatably mounted on the at least one
  • the connecting rod is articulated, which is a piston movable in a cylinder carries, the cylinder forming a combustion chamber of the Cylinder head is covered in the as at least one intake valve and an outlet valve designed gas exchange valves are embedded, when they are actuated with their valve disks in the combustion chamber protrude and, the crankcase optionally with different large cylinder bores can be formed and where for all crankcase versions a cylinder head is provided, the Cylinder head fastenings and gas exchange valves are arranged identically are.
  • Such a cylinder head or such an internal combustion engine is known from DE-PS 38 41 355.
  • DE-PS 38 41 355. At one in this document proposed solution to increase the displacement Cylinder distances and the cylinder diameter increased. This requires the redesign of all essential internal combustion engine parts and also makes the adjustment of the existing production facilities necessary. In addition, the internal combustion engine all must be built with the previous displacement (previous) internal combustion engine parts continue to be built, so that in addition, a large variety of parts and corresponding Stockpiling is necessary.
  • a second in this document proposed solution to increase the displacement remains the Cylinder head unchanged in terms of the distances between the Gas exchange units. As a result, the charge exchange units come in an asymmetrical with respect to the longitudinal central axis of their cylinders Location. This means that valve seat diameters are not possible, which has an optimum with respect to the valve opening area.
  • the invention has for its object in an internal combustion engine to realize an increase in displacement in which the variety of parts is small and the valve opening area is optimized.
  • the cylinder head for internal combustion engines with different sized cylinder bores in the Form is usable that the cylinder head for the internal combustion engine with the largest cylinder bore in relation to the arrangement of the Cylinder head fastenings and the gas exchange valves as well as the Diameter of the valve disc and the surrounding valve seat rings is designed and the valve disc up to the cylinder edge area of the part of the Cylinder head range and that the cylinder head with valve seat rings Can be equipped, the one to a smaller cylinder bore another Internal combustion engine adapted reduction of the valve plate diameter cause. It is then the case that the edge areas this valve seat rings from the cylinders or the cylinder tubes are covered in the areas facing each other, but the gas exchange valves themselves are freely movable.
  • valve seat rings In a most general Optionally, it is possible to use the valve seat rings To be designed so that the central axis of the valve seat inner diameter eccentric to the central axis of the valve seat ring outer diameter is shifted towards the center of the cylinder head.
  • valve stem guides are around in this embodiment the same measure of eccentricity to the center of the cylinder head shifted there. This can be especially true when using of valve stem guide bushes with correspondingly eccentric Bores for the valve stems in relation to the outside diameter can be achieved.
  • valve seat rings As part of the preferred embodiment of the invention have the valve seat rings but without eccentric Relocation of the different central axes different seat widths on. This means there is no need for the valve stem guides Change or adjustment to be made and there will be only gas exchange valves matched to the valve seat rings used with reduced valve plate diameters.
  • valve seat rings on the gas exchange channel side one adapted to the gas exchange channels Have a contour. This contour is particularly designed that there are no sharp transitions that affect the gas exchange flow could adversely affect.
  • At least one and the same Cylinder head blank for internal combustion engines with different Hole dimensions used. So here are the Clearances between the cylinder head fastenings and the valve stem guide center axes in the longitudinal direction of the cylinder head and in the transverse direction of the cylinder head the same for all hole variants. Details on this have no influence, can of course be changed. So the cylinder head can - regardless of which crankcase it is used - without changes or with the same Tools are processed, but only accordingly the respective bore diameter different valve seat rings and suitable valves are used. All other attachments of the Cylinder head including the intake pipes and exhaust pipes can be the same. As a result, the manufacturing effort and especially the variety of parts is reduced.
  • crankcase with a smaller Cylinder bore the gas exchange channel cores at least in the area of Valve seat rings have a smaller diameter. So need no valve seat rings with a corresponding transition contour are used but it can be on standard valve seat blanks be used.
  • valve actuation means in the crankcase and / or the cylinder head also the same for the different hole variants. This means that the same parts including the camshaft can also be used here be used.
  • the use or configuration according to the invention of the cylinder head achieved that this for different Bore diameter of the cylinder can be used.
  • there can the use according to the invention in particular in a Further development of an existing engine series may be advantageous, by first the cylinder head for the internal combustion engine with the increased displacement is developed. This cylinder head can then used on the existing crankcase without changes become.
  • the cylinder 1 shown in FIG. 1, in particular a multi-cylinder Internal combustion engine in series or V design is of one schematically shown cylinder head 2 covered, of which Cylinder head 2, a gas exchange duct 3, a valve seat ring 7 and one partially shown gas exchange valve 4 are shown.
  • the valve stem 5 of the gas exchange valve 4 is in a not shown Valve stem guide guided in the cylinder head 2 while the valve plate 6 with the valve seat ring 7, which is inserted into the cylinder head 2 is cooperating.
  • Location and size of the valve plate 6 and Valve seat rings 7 are dimensioned so that the gas exchange valve 4th the largest possible flow cross-section to the gas exchange channel 3 releases. Accordingly, the gas exchange valve 4 is sufficient up to close to the cylinder surface 8. If a cylinder 1 with a slightly smaller hole size (dashed), the gas exchange valve would no longer be opened and closed can be.
  • a valve seat ring is used 7a with a larger seat ring width in the cylinder head 2 used, at the same time a gas exchange valve 4a with one opposite the gas exchange valve 4 smaller diameter of the valve plate 6a is used.
  • a streamlined transition has the valve seat ring 7a a transition contour 9, the one streamlined transition to the gas exchange duct inner wall guaranteed.
  • this valve seat ring 7a with a transition contour 9 can also be adapted when casting the cylinder head 2
  • Gas exchange valve core with smaller ones at least in this area Diameter can be used.
  • FIG. 3 and 4 each show a view of the cylinder head 1 on the Combustion chamber side interacting with different bore diameters the cylinder 1, wherein in Fig. 3 an embodiment of the Cylinder head 2 with valve seat rings 7 with a small valve seat ring width and large bore diameter of the cylinder 1 is while Fig. 4 shows an embodiment of the cylinder head 2 with valve seat rings 7a with a large ring width and a smaller bore diameter of cylinder 1 shows.
  • the central bore 10 is an opening in particular for an injection valve, but here also, if necessary Spark plug can be used as the invention for both auto-ignition Internal combustion engines as well as spark-ignited or Otto Gas internal combustion engines can be used.
  • the distances 11a, 11b the central axes of the gas exchange valves 4, 4a and the distances 12a, 12b of the central axes of the cylinder head attachments (Cylinder head screw whistles) are always the same.

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)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (6)

  1. Rangée de moteur à combustion interne comprenant une culasse (2), le moteur à combustion interne présentant un carter-moteur dans lequel est monté à rotation un vilebrequin sur lequel est articulée au moins une bielle qui porte un piston déplaçable dans un cylindre (1), le cylindre (1) étant recouvert par la culasse (2) en formant une chambre de combustion, des soupapes d'échange gazeux (4, 4a) réalisées en tant qu'au moins une soupape d'admission et une soupape d'échappement étant introduites dans la culasse, lesquelles, par leur actionnement avec leur tête de soupape respective, pénètrent dans la chambre de combustion, le carter-moteur pouvant être réalisé de manière sélective avec des alésages de cylindres de tailles différentes et une culasse (2) étant prévue pour toutes les versions de carter-moteur, dont les fixations de culasse et les soupapes d'échange gazeux (4, 4a) sont disposées de manière identique,
    caractérisée en ce que la culasse (2) est conçue pour un moteur à combustion interne avec un gros alésage de cylindre par rapport à l'agencement des fixations de culasse et des soupapes d'échange gazeux (4, 4a) ainsi que par rapport aux diamètres des têtes de soupape (6) et des sièges de soupapes (7) entourant celles-ci, où les têtes de soupape (6) pénètrent jusque dans la région de bord des cylindres de la partie de la culasse (2) coopérant avec la chambre de combustion et en ce que dans le cas d'un carter-moteur avec un alésage de cylindre plus petit, la culasse (2) est pourvue de sièges de soupapes (7a) avec un diamètre intérieur plus petit et de soupapes d'échange gazeux (4a) avec un diamètre des têtes de soupape (6a) plus petit.
  2. Rangée de moteur à combustion interne selon la revendication 1,
    caractérisée en ce que dans le cas d'un carter-moteur avec un alésage de cylindre plus petit, les sièges de soupapes (7a) présentent un contour de transition (9) vers le canal de soupape d'échange gazeux (3).
  3. Rangée de moteur à combustion interne selon la revendication 1 ou 2,
    caractérisée en ce que la culasse (2) a la même configuration de base pour les différents alésages de cylindres.
  4. Rangée de moteur à combustion interne selon l'une quelconque des revendications précédentes,
    caractérisée en ce que des canaux d'échange gazeux (3) coopérant avec les soupapes d'échange gazeux (4, 4a) sont conçus dans la culasse (2) avec le plus grand diamètre intérieur des sièges de soupapes (7a).
  5. Rangée de moteur à combustion interne selon l'une quelconque des revendications précédentes,
    caractérisée en ce que dans le cas d'un carter-moteur avec un plus petit alésage de cylindre, les centres des canaux d'échange gazeux présentent au moins dans la région des sièges de soupapes (7, 7a) un petit diamètre.
  6. Rangée de moteur à combustion interne selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'agencement des moyens d'actionnement de soupape dans le carter-moteur et/ou dans la culasse (2) est identique pour les tailles différentes d'alésages de cylindres.
EP98110043A 1997-08-06 1998-05-29 Culasse pour un carter-moteur à plusieurs alésages Expired - Lifetime EP0896146B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19734007 1997-08-06
DE19734007A DE19734007A1 (de) 1997-08-06 1997-08-06 Zylinderkopf zur Verwendung für Kurbelgehäuse mit unterschiedlichen Zylinderbohrungsdurchmessern

Publications (3)

Publication Number Publication Date
EP0896146A2 EP0896146A2 (fr) 1999-02-10
EP0896146A3 EP0896146A3 (fr) 1999-08-18
EP0896146B1 true EP0896146B1 (fr) 2003-06-25

Family

ID=7838147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110043A Expired - Lifetime EP0896146B1 (fr) 1997-08-06 1998-05-29 Culasse pour un carter-moteur à plusieurs alésages

Country Status (3)

Country Link
US (1) US6000372A (fr)
EP (1) EP0896146B1 (fr)
DE (2) DE19734007A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004041958B4 (de) * 2004-08-31 2017-01-19 Deutz Ag Hubkolbenbrennkraftmaschine mit 2- oder 4-Ventilzylinderkopf
DE102005020228B4 (de) * 2005-04-30 2014-08-14 Audi Ag Einlasskanalanordnung in einem Zylinderkopf
DE102006048517A1 (de) * 2006-10-13 2008-04-17 GM Global Technology Operations, Inc., Detroit Zylinderkopf für einen Verbrennungsmotor
FR2914359B1 (fr) * 2007-03-27 2009-05-08 Renault Sas Agencement pour une culasse d'un moteur thermique de vehicule automobile comportant un siege venturi.
CA2756459A1 (fr) * 2010-10-29 2012-04-29 Eric G. Keifer Cylindre de compresseur convertible en alesage variable
JP5342592B2 (ja) * 2011-03-31 2013-11-13 三菱重工業株式会社 内燃機関のシリンダ構造
RU2499899C1 (ru) * 2012-04-11 2013-11-27 Эмель Борисович Ахметов Двухтактный поршневой дизель

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR576485A (fr) * 1924-01-30 1924-08-21 Procédé et dispositifs pour la réduction du volume de la cylindrée dans les moteurs à explosion et autres
GB281347A (en) * 1926-06-03 1927-12-05 David Lewis Lipman Methods of and means for reducing cylinder capacity in internal combustion engines and the like
US2696810A (en) * 1951-08-16 1954-12-14 Hercules Motors Corp Valve seat insert construction for internal-combustion engines
DE1721961U (de) * 1955-04-16 1956-05-09 Heinz Pollmann Kraftfahrzeug-verbrennungsmotor.
US3115127A (en) * 1961-10-02 1963-12-24 Charles O Spencer Removable insert for internal combustion chambers
FR2353714A1 (fr) * 1976-06-04 1977-12-30 Renault Construction de bloc cylindre chemise pour moteur a combustion interne
DE3841355C2 (de) * 1988-12-08 1997-02-27 Audi Ag Verfahren zur Hubraumvergrößerung einer ventilgesteuerten Hubkolben-Brennkraftmaschine
AU1545392A (en) * 1991-04-10 1992-11-17 Gunter Elsbett Internal-combustion engine
ATE130399T1 (de) * 1993-02-03 1995-12-15 Avl Verbrennungskraft Messtech Verfahren zur herstellung eines mehrteiligen zylinderblockes.
US5390634A (en) * 1993-08-20 1995-02-21 S & S Cycle, Inc. Internal combustion engine having high performance combustion chamber
JPH07150945A (ja) * 1993-11-26 1995-06-13 Yamaha Motor Co Ltd ４サイクルエンジンの燃焼室構造
US5566450A (en) * 1995-03-16 1996-10-22 Ford Motor Company Flexibly making engine block assemblies

Also Published As

Publication number Publication date
EP0896146A3 (fr) 1999-08-18
DE19734007A1 (de) 1999-02-11
DE59808795D1 (de) 2003-08-07
US6000372A (en) 1999-12-14
EP0896146A2 (fr) 1999-02-10

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