EP1763646A1 - Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties - Google Patents

Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties

Info

Publication number
EP1763646A1
EP1763646A1 EP05763421A EP05763421A EP1763646A1 EP 1763646 A1 EP1763646 A1 EP 1763646A1 EP 05763421 A EP05763421 A EP 05763421A EP 05763421 A EP05763421 A EP 05763421A EP 1763646 A1 EP1763646 A1 EP 1763646A1
Authority
EP
European Patent Office
Prior art keywords
sealing
cylinder
cylinder head
annular
shells
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.)
Withdrawn
Application number
EP05763421A
Other languages
German (de)
English (en)
Inventor
Günter Kampichler
Thomas Stieglbauer
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.)
Motorenfabrik Hatz GmbH and Co KG
Original Assignee
Motorenfabrik Hatz GmbH and Co KG
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 Motorenfabrik Hatz GmbH and Co KG filed Critical Motorenfabrik Hatz GmbH and Co KG
Publication of EP1763646A1 publication Critical patent/EP1763646A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat

Definitions

  • the present invention relates to a sealing system for sealing a cylinder head against a Zylinder ⁇ liner of a single or multi-cylinder Brennkraftma ⁇ machine, in particular a four-stroke diesel engine, with split cast housing from two screw housing half shells, the division plane in crankshaft and cylinder axis direction, wherein the housing half shells have recesses for receiving separate cylinder liners and separate cylinder heads per cylinder are provided, comprising an annular sealing element.
  • German Offenlegungsschrift DE 10242052 A1 it is known from German Offenlegungsschrift DE 10242052 A1 to improve the aforementioned ring-shaped cylinder head gasket so that the annular part engaging in the annular groove of the cylinder head is prestressed against a side wall of the annular groove with the aid of a suitable spring element. This is intended to achieve a sealing effect independent of the axial forces between the bushing and the cylinder head.
  • the object of the present invention is, starting from the known prior art for a Brennkraft ⁇ machine with a split cast iron housing to provide a cost-effective sealing system available, with as low as possible axial forces and low assembly and component costs a reliable seal Cylinder head allows against a cylinder liner and thereby prevents leakage of fuel gases from the Brenn ⁇ space to the outside and penetration of water or cooling fluid and oil towards the inside.
  • a generic sealing system which is characterized in that the cylinder head has an annular groove open towards the combustion chamber, in which at least part of an extension of the cylinder liner formed as a sealing collar is received to form a press fit, and the annular sealing element is designed as a separate annular seal, which is supported on the one hand against a sealing surface of the cylinder head (2) and on the other hand radially against a sealing surface of the housing halves (3) and an annular gap (16) between the radially outer peripheral surface of the cylinder head (2) and the recesses of the GeHouse devis ⁇ shells (3) seals.
  • a sealing collar is an extension of the cylinder liner which is facing the cylinder head and which can be formed integrally therewith and forms part of the sealing system according to the invention.
  • the annular groove which is incorporated on the facing the combustion chamber side of the cylinder head in this, has substantially the shape of the male part of the sealing collar of the cylinder liner, that is, both parts are adapted to a press fit with appropriate axial force, optionally with deformation, to enable.
  • both the sealing collar in this area have as Also, the annular groove has a cross-sectional shape with corresponding conicity.
  • the press fit of the sealing collar of the cylinder liner in the annular groove in the cylinder head leads to a radially inner and an outer sealing surface within the annular groove, which together with the annular sealing element which additionally cooperates with the sealing collar allow reliable sealing of the combustion chamber /
  • the simple structure and low Bauteilauf ⁇ wall of the sealing system according to the invention has a favorable effect on the assembly costs and the manufacturing cost of such a sealed internal combustion engine.
  • the present invention provided separate ring seal seals the cylinder head effectively against the Gephaseusegur ⁇ shells.
  • this housing is made of two screw-fastened housing half-shells whose graduation plane extends in the crankshaft and cylinder axis direction is of particular importance since it is particularly difficult to apply correspondingly large axial forces to the respective separate ones Exercise cylinder heads.
  • the sealing collar of the cylinder liner has a recess of its outer diameter and the separate annular seal rests against the outer circumferential surface of the sealing collar in the region of the recess and is opposite to the latter supported adjacent sealing surfaces of Gezzau ⁇ half-shells and the cylinder head.
  • the separate annular seal can thus provide an effective seal against the annular gaps on the circumference of the cylinder head and the bushing between the counterbored housing half-shells.
  • the ring seal is advantageous as a ring from ei ⁇ nem elastic material such as a suitable Kunststoffmi ⁇ research, for example, fluorine rubber, formed taking care to speed in material selection to achieve the highest possible Temperaturbestän ⁇ , preferably to about 200 0 C, respected.
  • ei ⁇ nem elastic material such as a suitable Gummimi ⁇ research, for example, fluorine rubber, formed taking care to speed in material selection to achieve the highest possible Temperaturbestän ⁇ , preferably to about 200 0 C, respected.
  • the recess of the sealing collar runs Cylinder liner in the axial direction substantially conical, in such a way that their diameter tapers towards the cylinder head.
  • two or more cone sections with different cone angles may join one another in one variant.
  • this is a first cone section farther from the cylinder head with a comparatively large cone angle, which thus creates a sufficiently large spacing of the sealing collar from the adjacent crankcase on the shortest axial length and one second cone section with a comparatively small cone angle, the cylinder head side end of which is accommodated in the annular groove of the cylinder head under the formation of a press fit.
  • a cone angle in an angular range of about 3 ° to 5 ° proves to be particularly favorable for the second cone section, which is accommodated at least partially within the annular groove.
  • the separate annular seal is arranged in a groove extending radially in the cylinder head with distance from the sealing collar.
  • the separate ring seal abuts approximately at the level of the combustion chamber near the sealing collar of the cylinder liner and des-. If it is required to have a very high temperature resistance, this is less critical in the second embodiment. Because the separate ring seal is here in a circumferential on the radially outer peripheral surface of the cylinder head groove further from the combustion chamber spaced. In the case of a cylinder head made of aluminum, the ring seal is also included in a component with a temperature lower by about 10 ° - 15 ° C than the cylinder liner. Thus, instead of a very high-quality fluororubber, as advantageously used in the first embodiment, the more advantageous material commercially available under the registered name Viton can also be used for the ring seal.
  • edges of the sealing collar of the cylinder liner which are located on the side of the cylinder head can advantageously also be bevelled to form a narrow frontal edge surface of the sealing collar.
  • the assembly of the sealing system according to the invention proves to be very simple, since for this purpose only the cylinder head with its annular groove open towards the cylinder liner must be pressed axially onto the sealing collar of the cylinder liner, which happens outside the housing shells.
  • the separate ring seal on the sealing collar of Zylinder ⁇ liner (1st embodiment) or on the cylinder head (2nd embodiment) are mounted.
  • the assembly is inserted into the recesses provided for the housing half shells; after completion of the assembly of the housing halves, the two housing halves are braced against each other with the bolts provided for this purpose.
  • 1 is a sectional view of a first embodiment of the invention Dichtungssy ⁇ stems ' and
  • FIGS. 2 to 4 show various views of a second embodiment of the sealing system according to the invention.
  • FIG. 1 schematically illustrates a first embodiment of the sealing system according to the invention in a sectional view in the dividing plane of the housing half-shells.
  • the arrangement of a cylinder liner 1 and a part of a cylinder body 2 is in a recess in one of the housing halves ⁇ bowl 3 to recognize.
  • the cylinder liner 1 has an extension formed as a sealing collar 5 above the dashed line 6, which is formed in one piece from the cylinder liner 1.
  • an annular sealing element in the form of a separate ring seal 4. Part of the sealing collar 5 of the The cylinder liner 1 is received by an annular groove 7 of the cylinder head 2 to form a press fit.
  • the sealing collar 5 of the cylinder liner has a recess of its outer diameter, which is composed of two cone sections tapering conically in the axial direction towards the cylinder head with different cone angles ⁇ and ⁇ and outer surfaces 8 and 9.
  • the annular seal 4 bears radially against the outer circumferential surface of the sealing collar 5 of the cylinder liner 1 formed by the two sections 8 and 9 in the region of the recess.
  • the interference fit of the sealing collar 5 of the cylinder liner 1 within the annular groove 7 of the cylinder head 2 forms an inner and an outer sealing surface 10 and 11 on the two side walls of the annular groove 7.
  • the located on the side of the cylinder head 2 edges 12 and 13 of the sealing collar 5 of the cylinder liner 1 are bevelled to form a narrow frontal surface 15 of the sealing collar 5.
  • the edge 14 of the cylinder head 1 located radially outside the annular groove 7 engages between these and the sealing collar 5 of the cylinder liner 1 within the recesses of the housing half shells and thus axially adjoins the cavity, which is largely filled by the annular seal 4, between the outer peripheral surface 8, 9 of the sealing collar 5 and the recesses of the housing half-shells 3.
  • the ring seal 4 is thus arranged in a cavity which extends through the outer surface 8,9 of the sealing collar 5, the underside of the edge 14 of the cylinder head 2 and the Aus ⁇ savings of the housing halves 3 is limited and seals all surfaces adjacent to the cavity against each other.
  • water or cooling liquid can be present in a minimal annular gap 16 between the radially outer peripheral surface of the cylinder head 2 and the recesses of the housing half shells 3 and in an annular gap 17 situated below it between the Outer peripheral surface of the cylinder liner 1 and the recesses of the housing halves 3 oil can be located.
  • the combustion chamber is thus effectively sealed with the sealing system according to the invention both against the ingress of oil and water or cooling liquid and against the escape of combustion chamber gases. In addition, no mixing of the oil with the water or the cooling liquid can take place.
  • FIG. 2 and the following show a further embodiment of a sealing system according to the invention.
  • Cylinder head 2 and cylinder liner 1 are arranged between the housing half-shells 3 of a split-cast diesel engine.
  • the cylinder head 2 has on its radially outer circumferential surface a ra ⁇ dial circumferential annular groove 18. 2, the inlet opening 19 of the cylinder head 2 can be seen, which is sealed by means of a seal 20 against a korrespondie ⁇ -generating channel 21 (see Fig. 3) of the housing half shells 3.
  • FIG. 3 shows a sectional view according to sectional plane AA in FIG. 2;
  • Figure 4 shows a section X of Figure 3 in an enlarged view.
  • the separate ring seal 4 is arranged radially between the annular groove 18 and the recesses of the housing half-shells 3 and thus seals the annular gap 16 between the cylinder head 2 and the housing half-shells.
  • a further annular seal 22 may be provided on the outer circumferential surface of the cylinder head 2, preferably at the upper end thereof.
  • the sealing collar 5 of the cylinder liner 1 is received in a groove of the cylinder head 2 pointing toward the combustion chamber, forming a press fit.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un système d'étanchéité servant à étanchéifier une culasse (2) par rapport à une chemise de cylindre (1) d'un moteur à combustion interne à un ou plusieurs cylindres, notamment d'un moteur diesel à quatre temps, présentant un carter en fonte en deux parties, constitué de deux demi-coques (3), dont le plan de séparation s'étend dans le sens axial du vilebrequin et des cylindres. Les demi-coques de carter (3) présentent des évidements servant à recevoir des chemises de cylindre (1) séparées. Des culasses séparées (2) sont prévues pour chaque cylindre. Ce système d'étanchéité présente un élément d'étanchéité annulaire. Dans la culasse (2) est ménagée une rainure annulaire (7) qui est ouverte vers la chambre de combustion et dans laquelle est logée au moins une partie d'un prolongement de la chemise de cylindre (1), faisant office de bord d'étanchéité (5), en formant un ajustement serré. L'élément d'étanchéité annulaire se présente sous la forme d'une bague d'étanchéité (4) séparée qui, d'une part, prend appui contre une surface d'étanchéité de la culasse (2) et, d'autre part, prend appui dans le sens radial contre une surface d'étanchéité des demi-coques (3) et assure l'étanchéité d'un espace annulaire (16) entre la surface périphérique, extérieure dans le sens radial, de la culasse (2) et les évidements des demi-coques.
EP05763421A 2004-07-07 2005-07-07 Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties Withdrawn EP1763646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410032904 DE102004032904B4 (de) 2004-07-07 2004-07-07 Dichtungssystem für eine Brennkraftmaschine mit geteiltem Gussgehäuse
PCT/EP2005/007362 WO2006003019A1 (fr) 2004-07-07 2005-07-07 Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties

Publications (1)

Publication Number Publication Date
EP1763646A1 true EP1763646A1 (fr) 2007-03-21

Family

ID=34981950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05763421A Withdrawn EP1763646A1 (fr) 2004-07-07 2005-07-07 Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties

Country Status (4)

Country Link
EP (1) EP1763646A1 (fr)
CN (1) CN1985111A (fr)
DE (1) DE102004032904B4 (fr)
WO (1) WO2006003019A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4537435B2 (ja) * 2007-09-05 2010-09-01 日信工業株式会社 シリンダ装置
JP4705138B2 (ja) * 2008-09-19 2011-06-22 日信工業株式会社 シリンダ装置
CN102787940A (zh) * 2011-08-10 2012-11-21 摩尔动力(北京)技术股份有限公司 气缸缸盖配合体

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939753A (en) * 1957-10-15 1960-06-07 Daimler Benz Ag Cylinder head gasket arrangement
DE1122766B (de) * 1958-12-12 1962-01-25 Goetzewerke Zylinderkopfdichtung
US3139009A (en) * 1962-05-16 1964-06-30 Daimler Benz Ag Cylinder head seal
DE1220202B (de) * 1964-05-08 1966-06-30 Daimler Benz Ag Anordnung von Zylinderlaufbuchsen, insbesondere von nassen Zylinderlaufbuchsen bei Brennkraftmaschinen
DE2254053A1 (de) * 1972-11-04 1974-05-09 Kloeckner Humboldt Deutz Ag Zylinder fuer hubkolbenbrennkraftmaschinen
US4399783A (en) * 1980-04-14 1983-08-23 Deere & Company Interference fit cylinder liner
CA1177714A (fr) * 1980-04-14 1984-11-13 Herbert J. Hauser, Jr. Chemise de cylindre a ajustement a serrage
DE3610147A1 (de) * 1986-03-26 1987-10-01 Man Nutzfahrzeuge Gmbh Hubkolbenmotor
DE4213502A1 (de) * 1992-04-24 1993-10-28 Man Nutzfahrzeuge Ag Zylinderkopfdichtung für eine Brennkraftmaschine
DE19528830A1 (de) * 1995-08-05 1997-02-06 Man Nutzfahrzeuge Ag Brennraumabdichtung
DE19652049C1 (de) * 1996-12-13 1998-07-02 Hatz Motoren Brennkraftmaschine und Verfahren zu deren Herstellung
DE10037748C1 (de) * 2000-08-02 2001-11-15 Hatz Motoren Zylinderdeckeldichtung
DE10242052A1 (de) * 2002-09-11 2004-04-01 Adam Opel Ag Zylinderkopfdichtung
SE525322C2 (sv) * 2003-06-04 2005-02-01 Volvo Lastvagnar Ab Tätningsförband vid en förbränningsmotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006003019A1 *

Also Published As

Publication number Publication date
WO2006003019A1 (fr) 2006-01-12
CN1985111A (zh) 2007-06-20
DE102004032904A1 (de) 2006-02-09
DE102004032904B4 (de) 2006-06-14

Similar Documents

Publication Publication Date Title
DE60012871T2 (de) Abstreifkolbenring und dichtring zur verwendung mit einer zylinderlaufbuchse in einer brennkraftmaschine
EP2321521B1 (fr) Injecteur de carburant destiné à être disposé sur une chambre de combustion d'un moteur à combustion interne
DE112017002056T5 (de) Zylinderlaufbuchse mit fase und feuerstegmanschette
DE19581050B3 (de) Verbrennungsgasdichtanordnung für Brennstoffeinspritzvorrichtung
DE112015006356T5 (de) Verteiler-dichtfläche für verbesserte balginstallation
WO2006003019A1 (fr) Systeme d'etancheite pour un moteur a combustion interne a carter en fonte en deux parties
DE102017001324A1 (de) Montagewerkzeug zur Montage einer Kurbelgehäuseabdeckung an einer Kurbelwelle einer Verbrennungskraftmaschine
AT516387B1 (de) Längenverstellbare pleuelstange
EP2754863B1 (fr) Dispositif permettant de relier de façon étanche des canaux communicants dans des éléments de construction adjacents et/ou reliés d'un moteur à combustion interne
DE10322598A1 (de) Kolbenpumpe, insbesondere Hochdruck-Kraftstoffpumpe
DE102007007977A1 (de) Luftspaltisolation an einer Zylinderbüchse
DE102016219247A1 (de) Pumpenelement für eine Hochdruckpumpe
DE10321034B3 (de) Hubkolbenbrennkraftmaschine
DE102017113250A1 (de) Kolben für eine Pleuelstange und Pleuelstange
AT524214B1 (de) Brennkraftmaschine mit Zylinderkopfdichtung
DE102021102911A1 (de) Ventilschaftdichtung für eine Brennkraftmaschine sowie entsprechende Brennkraftmaschine
EP0935061B1 (fr) Moteur stationnaire à combustion interne à gaz
DE19847865C2 (de) Zylinderlaufbuchse
EP3267012B1 (fr) Clapet anti-retour pour une bielle de moteur à combustion interne à compression variable
DE102007048361B4 (de) Reparatursatz für Kurbelwellenzapfen
WO2002010572A1 (fr) Joint de couvercle de cylindre
DE102019119187A1 (de) Pleuel für eine Brennkraftmaschine mit variabler Verdichtung
DE10205179B4 (de) Kühlwasserabdichtung zwischen einem Motorblock und einer Zylinderlaufbuchse
DE102018217768A1 (de) Injektoranordnung
DE102011077027B4 (de) Gehäuseglocke mit integriertem Druckspeicher mit gebördeltem Deckel

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: 20061123

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE GB IT

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100202