WO2012171751A1 - Moteur à combustion interne pourvu d'au moins un cylindre formé par une chemise de cylindre - Google Patents

Moteur à combustion interne pourvu d'au moins un cylindre formé par une chemise de cylindre Download PDF

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Publication number
WO2012171751A1
WO2012171751A1 PCT/EP2012/059420 EP2012059420W WO2012171751A1 WO 2012171751 A1 WO2012171751 A1 WO 2012171751A1 EP 2012059420 W EP2012059420 W EP 2012059420W WO 2012171751 A1 WO2012171751 A1 WO 2012171751A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
cylinder liner
combustion engine
internal combustion
profile
Prior art date
Application number
PCT/EP2012/059420
Other languages
German (de)
English (en)
Inventor
Helmut Melde-Tuczai
Andreas Zurk
Christof Knollmayr
Gerd Blaindorfer
Original Assignee
Avl List Gmbh
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 Avl List Gmbh filed Critical Avl List Gmbh
Publication of WO2012171751A1 publication Critical patent/WO2012171751A1/fr

Links

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 
    • F02F1/002—Integrally formed cylinders and 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 
    • F02F1/004—Cylinder liners
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • F02F1/163—Cylinder liners of wet type the liner being midsupported

Definitions

  • the invention relates to an internal combustion engine with at least one cylinder formed by a cylinder liner, with a cylinder head and cylinder block integrally forming monoblock, wherein the cylinder liner is screwed in the monoblock via at least one thread.
  • an internal combustion engine with a monoblock in which at least one cylinder liner is screwed.
  • the cylinder liner has in its upper part a conical thread which engages in a correspondingly shaped mating thread of the monoblock.
  • the thread assumes both the fastening and the sealing function.
  • DE 100 21 091 C1 describes a cylinder assembly for an internal combustion engine, consisting of a cylinder head and a cylinder liner.
  • the cylinder head in this case has a cylinder head bottom and a circular neck.
  • Both the nozzle and the cylinder liner are threaded, by means of which the cylinder liner can be screwed into the nozzle.
  • the thread of the nozzle is spaced from the cylinder head floor, whereby a thread-free area between the cylinder head floor and the thread is formed.
  • the cylinder liner In the area of the cylinder head floor, the cylinder liner has a flat sealing surface, which is pressed sealingly against the cylinder head floor in the mounted state.
  • JP 05-172 249 A an internal combustion engine with at least one cylinder with a cylinder liner is known, which is fastened by screws from the side of the crank chamber in the monoblock housing.
  • the cylinder head floor has in the region of the cylinder liner to a circumferential conical groove, into which engages a conical annular sealing surface on the cylinder head floor facing the front side of the cylinder liner.
  • the conical surfaces can be formed by a separate sealing ring. The sealing effect arises from the fact that the cylinder liner is pressed by the fastening screws elastic against the cylinder head floor.
  • the known solutions have the disadvantage that either an increased production cost is required or that the sealing effect is insufficient.
  • the object of the invention is to avoid these disadvantages and to achieve in a simple manner the best possible seal between the cylinder liner and the monoblock.
  • the sealing effect arises from the fact that the cylinder liner is pressed against the cylinder head floor, wherein the profile is plastically deformed and adapted to the counter surface.
  • a particularly good sealing effect can be achieved if the profile has at least one, preferably a plurality of projecting annular edges, wherein a circumferential annular groove is preferably formed between at least two projecting annular edges.
  • the profile bears sealingly against a preferably flat counter surface of the cylinder head.
  • the profile can either be molded into the cylinder liner or formed by a separate profile ring.
  • the profile is formed by a profile ring designed separately to the cylinder liner.
  • the cylinder liner has a higher hardness than the monobloc.
  • the monoblock consists of aluminum or a magnesium alloy.
  • the cylinder liner may be made of a harder material, such as steel.
  • the Fig. Shows an internal combustion engine according to the invention, the cylinder head 1 and cylinder block 2 is formed by a one-piece monobloc 3.
  • the internal combustion engine is shown in a section through a cylinder 4, wherein the cylinder 4 is formed by a cylinder block 5 fixed in the monoblock 3.
  • the cylinder axis is marked.
  • the cylinder liner 5 has an external thread 6 in the region of its upper third, which engages in a corresponding internal thread 7 of the monoblock 3.
  • the cylinder liner 5 has a profile 10 with projections and depressions.
  • the profile 10 is formed by a plurality of circumferential edges 10a and intervening grooves 10b, wherein the projecting edges 10a are pressed against a flat mating surface 11 of the cylinder head floor 8.
  • the profile 10 can - as shown in the figure - be formed integrally with the cylinder liner 5. Alternatively, it is also possible to realize the profile 10 by a separate sealing ring which is pressed by the cylinder liner 5 to the cylinder head 1.
  • attack areas are designated for a mounting tool to allow easy insertion of the cylinder liner 5 in the monobloc 3.
  • the internal combustion engine is designed water-cooled and has a cooling jacket 13, which borders directly on the cylinder liner 5.
  • sealing rings 15 are provided between the cylinder liner 5 and the cylinder block 2.

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)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne un moteur à combustion interne pourvu d'au moins un cylindre (4) formé par une chemise de cylindre (5), comprenant un monobloc (3) formant une culasse (1) et un bloc-cylindre(s) (2), la chemise de cylindre (5) étant vissée dans le monobloc (3) par au moins un filetage. Pour obtenir de la façon la plus simple possible une fixation sûre et une étanchéité fiable, la face frontale de la chemise de cylindre (5) tournée vers la culasse (1) présente un profil (10).
PCT/EP2012/059420 2011-06-16 2012-05-22 Moteur à combustion interne pourvu d'au moins un cylindre formé par une chemise de cylindre WO2012171751A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA879/2011 2011-06-16
AT8792011A AT510601B1 (de) 2011-06-16 2011-06-16 Brennkraftmaschine mit zumindest einem durch eine zylinderbuchse gebildeten zylinder

Publications (1)

Publication Number Publication Date
WO2012171751A1 true WO2012171751A1 (fr) 2012-12-20

Family

ID=46052391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/059420 WO2012171751A1 (fr) 2011-06-16 2012-05-22 Moteur à combustion interne pourvu d'au moins un cylindre formé par une chemise de cylindre

Country Status (2)

Country Link
AT (1) AT510601B1 (fr)
WO (1) WO2012171751A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017046471A1 (fr) * 2015-09-18 2017-03-23 Renault S.A.S Chemise de cylindre d'un moteur borgne

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05172249A (ja) 1991-12-19 1993-07-09 Toyota Motor Corp 内燃機関のシリンダ
JPH05187309A (ja) 1992-01-08 1993-07-27 Toyota Motor Corp 内燃機関のシリンダ構造
DE10021091C1 (de) 2000-05-05 2001-06-07 Mtu Friedrichshafen Gmbh Zylinderverband
JP2004263605A (ja) * 2003-02-28 2004-09-24 Toyota Motor Corp シリンダの保持構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05172249A (ja) 1991-12-19 1993-07-09 Toyota Motor Corp 内燃機関のシリンダ
JPH05187309A (ja) 1992-01-08 1993-07-27 Toyota Motor Corp 内燃機関のシリンダ構造
DE10021091C1 (de) 2000-05-05 2001-06-07 Mtu Friedrichshafen Gmbh Zylinderverband
JP2004263605A (ja) * 2003-02-28 2004-09-24 Toyota Motor Corp シリンダの保持構造

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017046471A1 (fr) * 2015-09-18 2017-03-23 Renault S.A.S Chemise de cylindre d'un moteur borgne
FR3041383A1 (fr) * 2015-09-18 2017-03-24 Renault Sas Chemise de cylindre d'un moteur borgne
RU2698583C1 (ru) * 2015-09-18 2019-08-28 Рено С.А.С Гильза цилиндра герметичного двигателя

Also Published As

Publication number Publication date
AT510601A4 (de) 2012-05-15
AT510601B1 (de) 2012-05-15

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