EP0744542B1 - Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide - Google Patents

Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide Download PDF

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Publication number
EP0744542B1
EP0744542B1 EP19950107782 EP95107782A EP0744542B1 EP 0744542 B1 EP0744542 B1 EP 0744542B1 EP 19950107782 EP19950107782 EP 19950107782 EP 95107782 A EP95107782 A EP 95107782A EP 0744542 B1 EP0744542 B1 EP 0744542B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
jacket
cylinder
water
head 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
EP19950107782
Other languages
German (de)
English (en)
Other versions
EP0744542A1 (fr
Inventor
Winfried Krebs
Gerhard Koller
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.)
Dr Ing HCF Porsche AG
Renault SAS
Original Assignee
Dr Ing HCF Porsche AG
Renault SAS
Regie Nationale des Usines Renault
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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Application filed by Dr Ing HCF Porsche AG, Renault SAS, Regie Nationale des Usines Renault filed Critical Dr Ing HCF Porsche AG
Priority to EP19950107782 priority Critical patent/EP0744542B1/fr
Priority to DE59506588T priority patent/DE59506588D1/de
Publication of EP0744542A1 publication Critical patent/EP0744542A1/fr
Application granted granted Critical
Publication of EP0744542B1 publication Critical patent/EP0744542B1/fr
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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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • 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
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
    • 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
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the invention is based on a cylinder head for a water-cooled, Multi-cylinder internal combustion engine according to the type of the main claim.
  • the cylinder head is a multi-cylinder Internal combustion engine, in which the gas exchange serving inputs and Outlet channels are arranged according to the counterflow principle, i.e. the channels open into each other, laterally delimiting the cylinder head Walls.
  • Such cross-flow cylinder heads offer so-called DC cylinder heads advantages in terms of mounting the Exhaust manifold and the intake manifolds, since similar channels each on one common side.
  • a cylinder head is also known in which the Inlet and outlet channels are arranged according to the direct current principle.
  • parts of the water-bearing area extend above and below the Channels.
  • the sub-area led above the channels leads here Cooling water, which has partly warmed up more, so that here too adequate cooling does not result reliably.
  • the supply of the water-carrying jacket that surrounds the outlet channels is possible in a particularly simple manner if the lower cladding area over a direct channel is connected to the flange surface to the crankcase.
  • This channel can be advantageously from the flange surface accessible hole.
  • the channel between the flange surface and the lower cladding area into the upper mantle area is extended. This is also for the top one Jacket area an almost direct connection to the water-carrying part of the Crankcase possible.
  • the coolant temperature is correspondingly lower. Furthermore, an adequate circulation of the coolant is also in the guaranteed upper coat area.
  • the formation of a water-carrying jacket according to the invention in the area the exhaust ports are particularly advantageous for multi-valve cylinder heads, in particular four-valve cylinder heads with two intake and two exhaust ports per cylinder.
  • the channel connecting the flange surface and the jacket area can be technically simple and without much influence on the surrounding area between the outlet channels of a cylinder become.
  • Effective cooling of the cylinder head in the area of the exhaust ports especially in multi-valve engines is achieved when the one cylinder assigned exhaust ports in the longitudinal section of the engine (parallel to the crankshaft) be encircled by the jacket.
  • Such Variation of the inflow cross-sections is particularly easy to do corresponding geometry to that provided in the cylinder head gasket Coolant openings. By adapting these openings in the A directed coolant flow can be realized in the cylinder head gasket. Furthermore, this coolant flow is related to the respective thermal stress of the cylinder head area.
  • the invention is below without limitation to this embodiment Example of a four-cylinder four-valve in-line engine with two intake and two Exhaust valves per cylinder described.
  • the cylinder head 1 of the Internal combustion engine has two gas cylinders serving each cylinder 2 Inlet channels 3 and two outlet channels 4, which in a common Outlet channel 5 open out. All inlet channels 3 open into one Cylinder head laterally delimiting flange surface 6.
  • the exhaust ports 5 open on the opposite long side into a flange surface 7.
  • the cylinder head is horizontal through a deck 8 into an upper, oil-carrying area 9 and lower, water-bearing area 10 divided.
  • the cylinder head 1 is under Liner of a cylinder head gasket 11 with its flange side 12 on Crankcase 13 in open-deck construction.
  • the water-bearing Jacket 14 of the crankcase 13 is through openings 15 in the Cylinder head gasket 11 with feeds 16 in the water-carrying area 10 of the cylinder head 1 connected.
  • the water-carrying area 10 consists essentially of a Longitudinal direction (parallel to the crankshaft) of the cylinder head Cavity 17, which is connected to a cooling water outlet 18.
  • a cooling water outlet 18 In the operation of the Internal combustion engine flows cooling water through the feeds 16 in the water-carrying area 10 or the cavity 17 and flows in In the longitudinal direction, the cylinder head 1 to the cooling water outlet 18.
  • there is a cross flow between the cylinders which cools the Areas of the cylinder head 1 assigned to cylinders 2 are effected.
  • FIGS. 6 and 7 show two modifications of the invention Shown cylinder head, in which the lower jacket section for Flange surface is open. So this is a better accessibility guaranteed lower shell section during the molding process.
  • the lower Sheath section 21a, 21b is not as enclosed in the modifications Ring element is designed as a downwardly open recess (Fig. 7).
  • This lower jacket section 21a, 21b extends in an arc between two adjacent feeders 16.
  • the lower jacket portions 21a (as shown in the left half of FIG. 6) with the feeders 16 be connected.
  • the lower jacket sections 21a are the adjacent cylinders connected together.
  • lower jacket sections 21b (right half of Fig. 6) not with the To connect feeders 16 so that there is no direct connection.
  • the channel 22 for connection to the water jacket 14 of the crankcase 13 is formed by an opening 25 in the cylinder head gasket 11.
  • the Dimensions of the openings 25 and the openings 15 in the region of Inlets 16 determine the flow conditions in relation to one another in the cylinder head.

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)

Claims (8)

  1. Culasse pour un moteur à combustion interne à plusieurs cylindres, refroidi à l'eau, dont les canaux d'admission et d'échappement (3, 4) servant à l'échange des gaz débouchent dans des surfaces de bride (6, 7) opposées l'une à l'autre, délimitant latéralement la culasse comportant un pont (8) s'étendant transversalement qui sépare une zone conduisant l'huile (9) d'une zone conduisant l'eau (10) située au-dessous, qui est alimentée en refrigérant par des conduites d'arrivée (16) débouchant dans la surface de bride (12) vers le carter-moteur (13), la zone conduisant l'eau s'étendant au moins dans la zone des canaux d'échappement (4, 5), caractérisée en ce que les canaux d'échappement sont entourés par une enveloppe (19, 20) conduisant l'eau et en ce que l'enveloppe est directement alimentée en réfrigérant à partir du carter-moteur, par au moins un canal (22), qui débouche dans la surface de bride (12) vers le carter-moteur (13).
  2. Culasse selon la revendication 1, caractérisée en ce que l'enveloppe (19, 20) présente une partie d'enveloppe supérieure (24) se trouvant au-dessus du canal d'échappement (4, 5) et une partie d'enveloppe inférieure (21) se trouvant au-dessous du canal d'échappement et en ce que le canal (2) débouche dans la partie d'enveloppe inférieure.
  3. Culasse selon la revendication 1, caractérisée en ce que le canal (2) est prolongé jusque dans la partie d'enveloppe supérieure (24).
  4. Culasse selon la revendication 1, caractérisée en ce que l'enveloppe (19, 20) présente une partie d'enveloppe supérieure (24) se trouvant au-dessus du canal d'admission (4, 5) et une partie d'enveloppe inférieure (21a, 21b) se trouvant au-dessous du canal d'échappement, en ce que la partie d'enveloppe inférieure est ouverte vers la surface de bride (12), et en ce que le canal (2) est réalisé en tant qu'ouverture (25) dans une etanchéité de culasse (11), disposée entre la culasse (1) et le carter-moteur (13).
  5. Culasse selon la revendication 1, caractérisée en ce que la zone ouverte de la partie d'enveloppe inférieure (21a, 21b) s'étend entre deux conduites d'arrivée (16).
  6. Culasse selon la revendication 5, caractérisée en ce que la partie d'enveloppe inférieure (21a) est reliée à au moins l'une des conduites d'arrivée (16).
  7. Culasse selon l'une des revendications précédentes, caractérisée en ce que par cylindre (21) sont formés deux canaux d'échappement (4) guides au moins partiellement séparés et en ce que le canal (22) est guide entre les deux canaux d'échappement (4).
  8. Culasse selon l'une des revendications précédentes, caractérisée en ce que l'enveloppe (19, 20) entoure en anneau les canaux d'échappement (4, 5) associés à un cylindre (2).
EP19950107782 1995-05-22 1995-05-22 Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide Expired - Lifetime EP0744542B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19950107782 EP0744542B1 (fr) 1995-05-22 1995-05-22 Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide
DE59506588T DE59506588D1 (de) 1995-05-22 1995-05-22 Zylinderkopf für eine wassergekühlte, mehrzylindrige Brennkraftmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19950107782 EP0744542B1 (fr) 1995-05-22 1995-05-22 Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide

Publications (2)

Publication Number Publication Date
EP0744542A1 EP0744542A1 (fr) 1996-11-27
EP0744542B1 true EP0744542B1 (fr) 1999-08-11

Family

ID=8219273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950107782 Expired - Lifetime EP0744542B1 (fr) 1995-05-22 1995-05-22 Culasse pour moteur multicylindrique à combustion interne à refroidissement liquide

Country Status (2)

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EP (1) EP0744542B1 (fr)
DE (1) DE59506588D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011232A1 (de) * 2005-03-11 2006-09-14 Fev Motorentechnik Gmbh Zylinderkopf für eine Brennkraftmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305475A (en) * 1941-08-28 1942-12-15 Joseph W Jagersberger Casting with integral spray jets
DE1957461A1 (de) * 1969-11-15 1971-05-19 Sueddeutsche Bremsen Ag Zylinderkopf fuer wassergekuehlte Brennkraftmaschinen
DE3208341A1 (de) * 1982-03-09 1983-09-15 Klöckner-Humboldt-Deutz AG, 5000 Köln Zylinderkopf fuer eine wassergekuehlte brennkraftmaschine
JP2575807B2 (ja) * 1988-05-30 1997-01-29 ヤマハ発動機株式会社 ４サイクルエンジンのシリンダヘッド冷却構造
DE4036810C1 (fr) 1990-11-19 1991-12-05 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
DE4116943C2 (de) * 1991-05-24 1997-05-22 Daimler Benz Ag Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
DE4318462A1 (de) 1993-06-03 1994-12-08 Opel Adam Ag Zylinderkopf für eine ventilgesteuerte Brennkraftmaschine

Also Published As

Publication number Publication date
EP0744542A1 (fr) 1996-11-27
DE59506588D1 (de) 1999-09-16

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