EP0580651B1 - Moteur a combustion interne - Google Patents

Moteur a combustion interne Download PDF

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Publication number
EP0580651B1
EP0580651B1 EP92908047A EP92908047A EP0580651B1 EP 0580651 B1 EP0580651 B1 EP 0580651B1 EP 92908047 A EP92908047 A EP 92908047A EP 92908047 A EP92908047 A EP 92908047A EP 0580651 B1 EP0580651 B1 EP 0580651B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cylinder head
combustion engine
internal combustion
engine according
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
EP92908047A
Other languages
German (de)
English (en)
Other versions
EP0580651A1 (fr
Inventor
Ludwig Elsbett
Günter Elsbett
Klaus Elsbett
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19914111716 external-priority patent/DE4111716A1/de
Application filed by Individual filed Critical Individual
Publication of EP0580651A1 publication Critical patent/EP0580651A1/fr
Application granted granted Critical
Publication of EP0580651B1 publication Critical patent/EP0580651B1/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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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 according to the preamble of the main claim.
  • An internal combustion engine is known from DE-PS 348632, the cylinder head of which is of lightweight construction. However, this does not support the cylinder head plate in the middle in any way.
  • GB-A-724461 discloses a cylinder head with a flat lower wall which delimits the cylinder space and with a plurality of inlet and outlet ducts which can be closed by a valve.
  • the intake and exhaust ports have an arc from the central direction in the lower region of the cylinder head at an angle of 90 ° to a radial extent to the outside.
  • the known cylinder head is used in engines which have a centrally arranged additional combustion chamber which communicates with the cylinder via an opening in the middle of the lower plate of the cylinder head.
  • a support wall which is approximately rotationally symmetrical with respect to the central axis of the cylinder head and which extends approximately upwards from the circumference of the central bore in the lower plate of the cylinder head the shape of the horn of a trumpet diverges and opens into the upper area of the cylinder head near the surface of the cylinder, where its diameter is about three times as large as the underside, central hole.
  • the support wall follows the curved course of the intake and exhaust ports up to about half the height of the cylinder head.
  • the funnel-shaped support wall does not run along straight lines of force, but has an arcuate cross section due to its nestling on the course of the gas exchange channels, the curvature of which is reinforced by pressurization of the lower cylinder head plate, so that the support wall is in no way as stiff can be viewed.
  • the lower cylinder head plate is additionally curved upwards, which contributes to a considerable tilting of the valves.
  • the task is solved by the characteristic Features of the main claim. In this way, the compressive forces that act on the center of the cylinder head plate can be transmitted to the screws with the least possible amount of material.
  • the central support is point-shaped and, due to the divergence of the cone shell-shaped support part, is also immovably fixed in all spatial directions in relation to high pressures. Since a longitudinal section through the tapered support part according to the invention always consists of straight lines, there is a particularly favorable statics, so that the cylinder head according to the invention has a maximum of stability.
  • the lower cylinder head plate accordingly experiences a maximum degree of stability, in particular against deflection, so that the valve seats cannot be distorted and low wear is ensured.
  • the contact zone is evenly loaded, so that there are no static Faults and therefore no leaks can occur.
  • the screw supports are only connected to the half of the cylinder head facing away from the cylinder.
  • the inlet and outlet channels can be designed in such a way that they are arranged only on the side of the cone-shaped support part facing the cylinder. As a result, its static stability is only broken through by the recesses for the valve stems.
  • a support ring is provided which avoids contact between the two parts.
  • This support ring is advantageously made of a deformable material, such as steel, in order to be able to adapt accordingly.
  • This dimensionally stable sealing ring is used with approximately the same wall thickness as the cylinder top part between the cylinder top part and cylinder head.
  • the shape of the upper part of the cylinder prevents the expansion of the upper end of the cylinder by the gas pressure. The result is an improved tightness of the piston above the top piston ring.
  • the cooling (oil cooling) of the support ring prevents the static and thermal expansion of the upper cylinder end, so that the forces from the cylinder head are introduced into the cylinder under constant conditions.
  • the shape of the inlet and outlet channels 6 and 7 is subordinate to the shape of the support cone 11 of the cylinder head 14.
  • the length of the screw supports 12 in the annular bead 13 is so limited that the effect of the ring support 3 on the uniform distribution of force over the entire circumference is not affected.
  • the support ring 4 has the task of ensuring gas tightness with the uniform circumferential force of the screw pressure.
  • the bore slugs 17 for valve guidance protrude beyond the cone-shaped support part 11.
  • Fig. 2 shows the ring plate 13, which holds all four cylinder head screws in a direct frictional connection and also guarantees the introduction of the screw forces into the rigid support cone 11.
  • FIG. 3 shows a longitudinal section like FIG. 1 in the region of the support ring 4 through the cylinder 8 and the cylinder head 14 of a piston internal combustion engine, the piston 18 being in the uppermost piston position.
  • a rigid metal sealing and support ring 4 protrudes over the cylinder 8 and encloses it and protrudes into the cylinder head 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Valve Device For Special Equipments (AREA)
  • Glass Compositions (AREA)

Claims (9)

  1. Moteur à combustion interne comportant au moins un cylindre (8), dont l'ouverture située du côté de la compression est fermée avec une culasse de cylindre (14), qui est fixée sur le cylindre (8) avec des vis, et pour lequel la zone de contact entre le cylindre (8) et la culasse de cylindre (14) est configurée en forme d'anneau circulaire et se situe à l'intérieur d'un cercle défini par les points d'ancrage des vis dans le cylindre (8), caractérisé en ce que la culasse de cylindre (14) a, sur sa face tournée à l'opposé du cylindre (8), un bourrelet annulaire (13) massif dans lequel les ouvertures (15) pour les vis sont placées, ainsi qu'une partie d'appui (11) en forme de paroi conique, par laquelle une partie des forces de pression (1) est dirigée, depuis les vis, au travers du bourrelet annulaire (13) et en ligne droite (2), sur le centre de la plaque (5) de la culasse de cylindre.
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce qu'une partie des forces de pression (1) est dirigée, au travers du bourrelet annulaire (13) et d'un appui annulaire (3) tronconique, en ligne droite sur la zone de contact.
  3. Moteur à combustion interne selon la revendication 1, caractérisé en ce que les lignes droites de liaison entre les vis, dans le plan d'introduction des forces (16), s'étendent à l'intérieur du bourrelet annulaire (13).
  4. Moteur à combustion interne selon la revendication 1, caractérisé en ce que des éléments d'appui (12) comportant des ouvertures pour vis (15), chacune pour le passage d'une vis de fixation respective de la culasse de cylindre, sont disposés sur la moitié de la culasse de cylindre (14), qui est située à l'opposé du cylindre (8).
  5. Moteur à combustion interne selon la revendication 1, caractérisé en ce que la culasse de cylindre (14) est ouverte sur sa face tournée à l'opposé du cylindre (8).
  6. Moteur à combustion interne selon la revendication 1, caractérisé en ce que les canaux d'admission et d'échappement (6) et (7) sont disposés dans la culasse de cylindre (14) d'une manière telle qu'ils s'adaptent à la partie d'appui (11) en forme de paroi conique et que celle-ci ne soit percée que par les évidements pour les tiges de soupape.
  7. Moteur à combustion interne selon la revendication 1, caractérisé en ce que le contact entre le cylindre (8) et la culasse de cylindre (14) est réalisé par l'intermédiaire d'un anneau d'appui (4).
  8. Moteur à combustion interne selon la revendication 7, caractérisé en ce que l'anneau d'appui (4) est en prise autour du cylindre (8).
  9. Moteur à combustion interne selon la revendication 7, caractérisé en ce que l'anneau d'appui (4) est en prise autour de la culasse de cylindre (14), à hauteur des sièges de soupape.
EP92908047A 1991-04-10 1992-04-10 Moteur a combustion interne Expired - Lifetime EP0580651B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4111716 1991-04-10
DE19914111716 DE4111716A1 (de) 1991-04-10 1991-04-10 Brennkraftmaschine
DE4124999 1991-07-27
DE4124999 1991-07-27
PCT/DE1992/000296 WO1992018762A1 (fr) 1991-04-10 1992-04-10 Moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP0580651A1 EP0580651A1 (fr) 1994-02-02
EP0580651B1 true EP0580651B1 (fr) 1995-10-18

Family

ID=25902717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92908047A Expired - Lifetime EP0580651B1 (fr) 1991-04-10 1992-04-10 Moteur a combustion interne

Country Status (6)

Country Link
US (1) US5431137A (fr)
EP (1) EP0580651B1 (fr)
AT (1) ATE129315T1 (fr)
AU (1) AU1545392A (fr)
DE (1) DE59204076D1 (fr)
WO (1) WO1992018762A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734007A1 (de) * 1997-08-06 1999-02-11 Deutz Ag Zylinderkopf zur Verwendung für Kurbelgehäuse mit unterschiedlichen Zylinderbohrungsdurchmessern
US20110023811A1 (en) * 2009-08-01 2011-02-03 Heilenbach James W Piston for a two-stroke locomotive diesel engine having an egr system
US8683974B2 (en) 2011-08-29 2014-04-01 Electro-Motive Diesel, Inc. Piston
DE102011116372A1 (de) * 2011-10-14 2013-04-18 Vladimir Borissovskiy Brennraum eines Dieselmotors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932463C (de) * 1951-09-13 1955-09-01 Viktor Dr-Ing Rembold Kolben und Zylinderdeckel fuer Verbrennungsmotoren
BE518964A (fr) * 1952-04-05
DE1294096B (de) * 1966-12-29 1969-04-30 Daimler Benz Ag Fluessigkeitsgekuehlter Zylinderkopf einer Brennkraftmaschine
JPS57200648A (en) * 1981-06-05 1982-12-08 Nissan Motor Co Ltd Cylinder head for overhead cam shaft engine
JPS58124045A (ja) * 1982-01-20 1983-07-23 Suzuki Motor Co Ltd 二サイクルエンジンのシリンダ−ヘツド
IT1238283B (it) * 1990-03-23 1993-07-12 Vm Motori Spa Dispositivo di bloccaggio per testate di motori avio.
EP0458341A1 (fr) * 1990-05-24 1991-11-27 Mazda Motor Corporation Culoisse de cylindre d'un moteur du type à double arbre à cames
JPH0482343U (fr) * 1990-11-29 1992-07-17

Also Published As

Publication number Publication date
WO1992018762A1 (fr) 1992-10-29
ATE129315T1 (de) 1995-11-15
EP0580651A1 (fr) 1994-02-02
DE59204076D1 (de) 1995-11-23
US5431137A (en) 1995-07-11
AU1545392A (en) 1992-11-17

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