EP0082090B1 - Joint de culasse pour moteur à combustion interne avec préchambre de combustion - Google Patents

Joint de culasse pour moteur à combustion interne avec préchambre de combustion Download PDF

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Publication number
EP0082090B1
EP0082090B1 EP82420110A EP82420110A EP0082090B1 EP 0082090 B1 EP0082090 B1 EP 0082090B1 EP 82420110 A EP82420110 A EP 82420110A EP 82420110 A EP82420110 A EP 82420110A EP 0082090 B1 EP0082090 B1 EP 0082090B1
Authority
EP
European Patent Office
Prior art keywords
gasket
combustion chamber
flange
cylinder head
width
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
Application number
EP82420110A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0082090A1 (fr
Inventor
Georges Ulmer
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.)
Solyem SAS
Original Assignee
Curty SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9265075&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0082090(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Curty SA filed Critical Curty SA
Priority to AT82420110T priority Critical patent/ATE29915T1/de
Publication of EP0082090A1 publication Critical patent/EP0082090A1/fr
Application granted granted Critical
Publication of EP0082090B1 publication Critical patent/EP0082090B1/fr
Expired 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
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • 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
    • F02B2275/16—Indirect injection
    • 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

Definitions

  • the present invention relates to a cylinder head gasket for an internal combustion engine with a combustion prechamber.
  • the sealing functions of the cylinder head gasket are differentiated. Sealing with fluids, cooling water glycol, and lubricating oil is generally achieved by the base material of the seal, consisting of asbestos cartons 4 stapled to a perforated sheet 5, a metallic fabric coated on both sides of a mixture of asbestos-elastomer fibers etc ... Gas tightness is generally achieved by metallic "fire rings" 6 made of steel, electro-galvanized steel, stainless steel, plated steel, aluminum, etc ...
  • Diesel engines with an added Ricardo type combustion prechamber also require a special design of cylinder head gaskets.
  • a conventional solution consists, as shown in FIG. 2, in making a large wing on the side of the prechamber, but in having a small wing on the block side.
  • This solution has the drawback of providing excessively different pressures between the flame front and the prechamber due to the thickness of the metal of the crimping which goes from simple to double.
  • Document DE-B-1 294 102 relates to a cylinder head gasket comprising a core of flexible material included between two reinforcements extending over the entire surface of the gasket.
  • the thickness of metal is constant over the entire surface of the joint and does not provide particular qualities of resistance at the level of the fire rings.
  • the present invention aims to overcome these drawbacks.
  • a cylinder head gasket for internal combustion engine with Ricardo type added combustion chamber in which gas tightness is achieved by metal fire rings each consisting of a part associated with an opening of the joint so as to cover the edge of said opening, and having two wings covering the two faces of the joint, one of the two wings of which has been crimped and the other of which is wider than the one which has undergone this crimping , the wing set with the fire ring being associated with a metal plate engaged between it and the seal, and held in place by the pressure it exerts on it, and in which the width of the wing in view of the prechamber completely covers the common surface between this Ricardo type added combustion prechamber and the engine block, and the metal plate, interposed between the crimped wing and the joint, is of width such that it extends over any this he width of the wing opposite the added Ricardo type combustion prechamber.
  • the reinforcement ensures a better distribution of pressures in the area of the pre-combustion chamber and better mechanical resistance to high temperatures.
  • the fact of having three thicknesses of metal, instead of two with a traditional fire ring, makes it possible to better modulate the thickness at the place where a reinforcement is desired.
  • the reinforcing plate may or may not have the same thickness as the metal plate constituting the fire ring with which it is associated.
  • the reinforcing plate can be located on the face of the seal facing the combustion prechamber, or on the opposite face of the seal facing the side opposite the prechamber.
  • the width of the metal reinforcing plate is greater than the width of the wing of the fire ring with which it is associated.
  • the metal reinforcing plate is associated with the shorter wing.
  • This arrangement therefore makes it possible to obtain a wide wing not only on the side of the prechamber, but also on the side of the engine block, which allows a better distribution of the contact pressures and a better thermal evacuation by metal to metal conduction.
  • the thickness of the metal constituting the fire ring is 0.25 mm
  • the total thickness of the metal at the edge of the gases will be 0.50 mm.
  • the metal reinforcing plates can be made of steel, electrogalvanized steel, tinned steel, stainless steel, or aluminum plated steel, and their thickness can vary from 0.05 mm to 0.30 mm.
  • a judicious choice of the thickness of the metal of the main fire ring and the reinforcement plate makes it possible to modulate the ratio of the clamping pressures.
  • the fire ring has a thickness of 0.15 mm and the reinforcement plate, a thickness of 0.20 mm we will have 0.50 mm of metal at the level of the main fire ring and 0.35 mm in the prechamber area, a distribution of 70 - 100 against 50 100 in the conventional solution.
  • FIG. 3 represents the tight assembly of a Ricardo 10 system on the cylinder head of an internal combustion engine.
  • the Ricardo contains a combustion prechamber 12.
  • the seal between the prechamber 10 and the block or the jacket 11 is produced by a cylinder head gasket 13.
  • This cylinder head gasket comprises a fire ring 14 having a wide wing 15 on the side of the prechamber and a short crimped wing 16 on the side of the engine block.
  • On the side of the engine block there is provided a metal plate 17 of reinforcement, the end of which is engaged under the wing 16 of the fire ring 14.
  • This metal plate 17 is of width such that it extends over the entire width of the wing 15 with respect to the prechamber.
  • the thickness of the reinforcing plate 17 corresponds to the thickness of the metal fire ring 14.
  • This thickness is for example 0.17 mm, which allows, thanks to the triple thickness at the level of the fire front, to obtain a metal thickness of 0.51 mm, and a metal thickness of 0.34 mm with regard to the Ricardo.
  • the contact surface between the plate 17 and the engine block 11 also promotes thermal evacuation in the zone considered.
  • the invention brings a great improvement to the existing technique by providing a cylinder head gasket whose design makes it possible to better adjust the pressures by better modulation of the area considered.
  • This solution has the merit of being a cost price of the same level as that of the traditional cylinder head gasket, while allowing better modulation of the thicknesses of the fire rings, and being of a cost price which does not is not higher than that of traditional cylinder head gaskets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP82420110A 1981-12-10 1982-07-30 Joint de culasse pour moteur à combustion interne avec préchambre de combustion Expired EP0082090B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82420110T ATE29915T1 (de) 1981-12-10 1982-07-30 Zylinderkopfdichtung fuer brennkraftmaschine mit vorkammer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8123467A FR2518171B1 (fr) 1981-12-10 1981-12-10 Joint de culasse pour moteur a combustion interne avec prechambre de combustion
FR8123467 1981-12-10

Publications (2)

Publication Number Publication Date
EP0082090A1 EP0082090A1 (fr) 1983-06-22
EP0082090B1 true EP0082090B1 (fr) 1987-09-23

Family

ID=9265075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420110A Expired EP0082090B1 (fr) 1981-12-10 1982-07-30 Joint de culasse pour moteur à combustion interne avec préchambre de combustion

Country Status (10)

Country Link
EP (1) EP0082090B1 (pt)
JP (1) JPS58113558A (pt)
AT (1) ATE29915T1 (pt)
BR (1) BR8204670A (pt)
DE (2) DE82090T1 (pt)
DK (1) DK442182A (pt)
ES (1) ES266850Y (pt)
FR (1) FR2518171B1 (pt)
MX (1) MX154151A (pt)
PT (1) PT75480B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526818A1 (de) * 1985-07-26 1987-02-05 Goetze Ag Zylinderkopfdichtung fuer verbrennungskraftmaschinen mit in den zylinderkopf eingebauter vorverbrennungskammer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475676A1 (de) * 1964-07-28 1969-02-06 Felt Products Mfg Co Flachdichtung
DE1294102B (de) * 1965-11-26 1969-04-30 Goetzewerke Zylinderkopfdichtung fuer Brennkraftmaschinen
DE1750805C2 (de) * 1968-06-06 1974-08-01 Reinz-Dichtungs-Gesellschaft Mbh, 7910 Neu-Ulm Vorlagering für Weichstoff-Flachdichtungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MOTORTECHNISCHE ZEITSCHRIFT, vol. 42, no. 9, septembre 1981, pages 361-364, Schwäbisch Gmünd (DE); R. BINDEL: "Die Zylinderkopfdichtung Ferrolastic 61 für nachziehfreie Zylinderkopfverspannungen" *

Also Published As

Publication number Publication date
MX154151A (es) 1987-05-26
DK442182A (da) 1983-06-11
ES266850Y (es) 1984-07-01
DE3277381D1 (en) 1987-10-29
BR8204670A (pt) 1983-08-02
DE82090T1 (de) 1984-06-07
PT75480A (fr) 1982-09-01
FR2518171B1 (fr) 1985-09-13
PT75480B (fr) 1984-11-12
JPS58113558A (ja) 1983-07-06
FR2518171A1 (fr) 1983-06-17
ES266850U (es) 1983-02-16
EP0082090A1 (fr) 1983-06-22
ATE29915T1 (de) 1987-10-15

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