EP0774576B1 - Flüssigkeitsgekühlter Zylinderkopf für eine mehrzylindrige Brennkraftmaschine - Google Patents
Flüssigkeitsgekühlter Zylinderkopf für eine mehrzylindrige Brennkraftmaschine Download PDFInfo
- Publication number
- EP0774576B1 EP0774576B1 EP96115801A EP96115801A EP0774576B1 EP 0774576 B1 EP0774576 B1 EP 0774576B1 EP 96115801 A EP96115801 A EP 96115801A EP 96115801 A EP96115801 A EP 96115801A EP 0774576 B1 EP0774576 B1 EP 0774576B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling water
- cylinder head
- chamber
- coolant
- cooling
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 title 1
- 239000002826 coolant Substances 0.000 claims description 14
- 238000005266 casting Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000001816 cooling Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- 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
- F02F1/24—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 relates to a liquid-cooled cylinder head for a multi-cylinder internal combustion engine according to the Preamble of main claim 1.
- a generic cylinder head is known from DE 41 00 459 A1.
- the one-piece, liquid-cooled Has cylinder head of a multi-cylinder internal combustion engine a cooling water chamber from a cylinder head floor, one with Distance above middle deck and side outer walls is limited.
- the cooling water room is by double ribs in each a cooling water chamber section assigned to a combustion chamber, in which, among other things, gas exchange channels and chambers are arranged for receiving injection nozzles or spark plugs.
- Through coolant through openings in the cylinder head base becomes cooling water from the crankcase in the cooling water space divided into cooling water space sections of the cylinder head, which the cooling water chamber Flown through both transversely and vertically.
- the cooling water chamber of the cylinder head is produced by two separate water cores.
- the main water space is formed by the so-called main water core.
- the cooling water inlet for the separate supply of the narrow area between the exhaust valve and the spark plug chamber is formed by the additional water core. The cooling water hole is then drilled.
- Another advantage of the invention lies in the simplified and thereby cheaper production of the one piece manufactured cylinder head, since the cooling water supply by casting is formed and thus a drilling process is omitted.
- the pouring allows free design of the cooling water inlet.
- An exploitation the profile as a "small cooling water room” is possible.
- improved cooling of the cylinder head achieved because a targeted, i.e. through holes in the seal Tunable cooling of selected areas can be achieved.
- the cooling water inlet forms the additional "small cooling water room" inside the cooling water chamber of the cylinder head and also serves for the direct cooling of a gas exchange duct or other internals.
- the embodiment of the invention according to claim 2 leads to a individual design of the inlet and thereby influencing it the partially desired amount of cooling water.
- the water flow through the cooling water hole can through the division of the casting core in separate water cores via appropriately chosen Water cross sections, for example in the cylinder head gasket, can be coordinated as required.
- Internal combustion engine consists of a one-piece casting with a cylinder head base 2 and up from this up to a cover separation level, not shown, for support a cylinder head cover, exhausting longitudinal outer walls 3, 4 and end walls 5, 6.
- the cylinder head base 2 has a for each cylinder Recess designed combustion chamber 8, which has two orifices 9, 10 per cylinder and two more in the Combustion chamber 8 leading openings 11, 12 from chambers 13, 14 to Inclusion of spark plugs, injection nozzles or the like.
- Valve channels 15, 16 lead from the mouth openings 9, 10, which the cooling water chamber 7 up to the longitudinal outer walls 3, 4 push through.
- the opening from the mouth 9 to the outer wall 3 Purging valve duct 15 forms the inlet duct and the one of the Mouth opening 10 leading to the outer wall 4 valve channel 16 forms the outlet duct.
- the V-shaped chambers 13, 14 pass through the cooling water chamber 7 in the direction of the cylinder head cover.
- inlet openings 17 By in the cylinder head base 2 at a distance around the Combustion chamber 8 arranged inlet openings 17 flows cooling water from Coolant jacket of the crankcase in the cooling water chamber 7 and flows through the cooling water chamber 7 preferably in a cylinder head transverse direction. The cooling water then flows through an outlet opening 19 arranged in the cylinder head housing on the Side of the inlet duct 15 from.
- the cooling water inlet 22 is "smaller Cooling water room "produced by casting.
- the casting allows one free design of the cooling water inlet 22, which is a Extension of the cooling water inlet 22 at least partially along allows the outside of the outlet channel 16, thereby achieving is that this area of the outlet channel 16 and the adjacent areas of the cylinder head base 2 over a large area incoming cooling water to be cooled.
- the cooling water inlet 22 has an L-shaped cross section. That in the cooling water inlet 22 entered water must make its way through the cooling water hole Take 21.
- This targeted cooling of the narrow area between exhaust duct 16 and spark plug chamber 13 and simultaneously the outside of the outlet duct 16 is from the cooling of the rest Cooling water room 7 separately.
- the cooling water supply in the Cooling water inlet 22 inside and within it is shown in FIG. 2 indicated with flow arrows.
- the cooling water chamber of the cylinder head is separated by a main water and a separate make-up core made from this.
- the main water core forms between the gas exchange channels or chambers extending main water space with the inlet openings and the separate additional water core forms the cooling water inlet.
- the additional water core is as Core strip designed, which is inserted in the lower part of the mold.
- the cooling water hole is drilled after casting. It is of course possible to increase the water flow through the cooling water hole through the cross section of the cooling water inlet to steer in the cylinder head floor. Furthermore, by the Pour an exploitation of the cooling water inlet as a "small cooling water room” possible. Furthermore, the casting enables an individual Design of the cooling water supply and thus an influence the partially desired amount of cooling water.
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)
Description
- Fig. 1
- einen erfindungsgemäßen Zylinderkopf in einer Ansicht von unten und einen Kühlwasserraum des Zylinderkopfes in einem Teilschnitt und
- Fig. 2
- einen Teilschnitt durch einen Kühlwasserzulauf und eine Kühlwasserbohrung gemäß der Linie I-I aus Fig. 1.
Claims (2)
- Flüssigkeitsgekühlter Zylinderkopf (1) für eine mehrzylindrige Brennkraftmaschine mit einem Kühlwasserraum (7), der sich in Kühlwasserraumabschnitte gliedert, die jeweils einem Brennraum (8) zugeordnet sind und durch die Gaswechselkanäle (15, 16) und mindestens eine Kammer (13, 14) für eine Zündkerze und gegebenfalls eine Einspritzdüse verlaufen und die durch Einlaßöffnungen (17) und einen Kühlwasserzulauf (22) mit dem Kühlwassermantel des Kurbelgehäuses verbunden sind, wobei der Kühlwasserraum (7) und dessen Einlaßöffnungen (17) sowie der Kühlwasserzulauf (22) durch Gießen hergestellt werden und der Kühlwasserzulauf (22) sich zumindest teilweise entlang der Außenseite vom Auslaßkanal (16) erstreckt,
dadurch gekennzeichnet,
daß sich eine Kühlwasserbohrung (21) durch den Kühlwasserzulauf (22) in Querrichtung (18) des Zylinderkopfs (1) erstreckt und in den Kühlwasserraum (7) im Stegbereich (20) zwischen Auslaßkanal (16) und Zündkerzenkammer (13) mündet. - Flüssigkeitsgekühlter Zylinderkopf nach Anspruch 1
dadurch gekennzeichnet,
daß der Kühlwasserraum (7) durch zwei voneinander getrennte Wasserkerne hergestellt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19542492A DE19542492C1 (de) | 1995-11-15 | 1995-11-15 | Flüssigkeitsgekühlter Zylinderkopf für eine mehrzylindrige Brennkraftmaschine |
| DE19542492 | 1995-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0774576A1 EP0774576A1 (de) | 1997-05-21 |
| EP0774576B1 true EP0774576B1 (de) | 2000-02-02 |
Family
ID=7777470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96115801A Expired - Lifetime EP0774576B1 (de) | 1995-11-15 | 1996-10-02 | Flüssigkeitsgekühlter Zylinderkopf für eine mehrzylindrige Brennkraftmaschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5720240A (de) |
| EP (1) | EP0774576B1 (de) |
| DE (2) | DE19542492C1 (de) |
| ES (1) | ES2144679T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008049527A1 (de) * | 2008-09-29 | 2010-04-01 | Deutz Ag | Positionierflächen an einem Gaswechselkanalrechen |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19914940C1 (de) * | 1999-04-01 | 2000-12-14 | Daimler Chrysler Ag | Flüssigkeitsgekühlter Zylinderkopf |
| DE19937122C1 (de) * | 1999-08-06 | 2000-10-26 | Daimler Chrysler Ag | Flüssigkeitsgekühlter Zylinderkopf |
| DE19945534C1 (de) * | 1999-09-23 | 2000-11-02 | Daimler Chrysler Ag | Flüssigkeitsgekühlter Zylinderkopf |
| US6250290B1 (en) | 2000-04-06 | 2001-06-26 | Transportation Design & Manufacturing Co. | Cooled LPG fuel rail |
| DE10328682A1 (de) * | 2003-06-26 | 2005-01-20 | Daimlerchrysler Ag | Zylinderkopf für eine mehrzylindrige, wassergekühlte Hubkolbenbrennkraftmaschine |
| AT501228B1 (de) * | 2005-05-03 | 2006-11-15 | Avl List Gmbh | Zylinderkopf |
| AT505591B8 (de) * | 2008-10-02 | 2010-04-15 | Avl List Gmbh | Brennkraftmaschine mit einem zylinderkopf |
| DE102011015930A1 (de) | 2011-04-02 | 2012-10-04 | Daimler Ag | Kühleinrichtung einer Verbrennungskraftmaschine |
| US20150176521A1 (en) * | 2012-06-18 | 2015-06-25 | Perusahaan Otomobil Nasional Sdn Bhd | Method and apparatus for cooling a cylinder head |
| JP6055322B2 (ja) * | 2013-01-28 | 2016-12-27 | 本田技研工業株式会社 | 内燃機関の冷却構造および当該冷却構造を備えた内燃機関の製造方法 |
| US8869758B1 (en) | 2013-10-09 | 2014-10-28 | Ford Global Technologies, Llc | Exhaust valve bridge and cylinder cooling |
| DE102017211876B3 (de) | 2017-07-12 | 2018-08-16 | Bayerische Motoren Werke Aktiengesellschaft | Kokille sowie Verfahren zum Herstellen eines Bauteils |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3516453A1 (de) * | 1985-05-08 | 1986-11-13 | Audi AG, 8070 Ingolstadt | Fluessigkeitsgekuehlter zylinderkopf |
| DE3710630A1 (de) * | 1987-03-31 | 1988-07-07 | Audi Ag | Fluessigkeitsgekuehlter zylinderkopf |
| DE3819655C1 (de) * | 1988-06-09 | 1989-01-26 | Daimler-Benz Ag, 7000 Stuttgart, De | |
| FR2655381B1 (fr) * | 1989-12-06 | 1994-07-08 | Peugeot | Culasse pour moteur a combustion interne, et moteur muni de cette culasse. |
| AT402325B (de) * | 1990-02-13 | 1997-04-25 | Avl Verbrennungskraft Messtech | Zylinderkopf einer flüssigkeitsgekühlten brennkraftmaschine mit in reihe angeordneten zylindern |
| DE4116943C2 (de) * | 1991-05-24 | 1997-05-22 | Daimler Benz Ag | Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine |
| FR2683263A1 (fr) * | 1991-10-31 | 1993-05-07 | Smh Management Services Ag | Moteur a combustion interne avec circuit de refroidissement perfectionne. |
| DE4311648A1 (de) * | 1993-04-08 | 1994-10-13 | Bayerische Motoren Werke Ag | Im Druckgußverfahren herstellbarer, mehrteiliger Querstrom-Zylinderkopf für flüssigkeitsgekühlte Brennkraftmaschinen |
-
1995
- 1995-11-15 DE DE19542492A patent/DE19542492C1/de not_active Expired - Lifetime
-
1996
- 1996-10-02 DE DE59604364T patent/DE59604364D1/de not_active Expired - Fee Related
- 1996-10-02 EP EP96115801A patent/EP0774576B1/de not_active Expired - Lifetime
- 1996-10-02 ES ES96115801T patent/ES2144679T3/es not_active Expired - Lifetime
- 1996-11-05 US US08/744,010 patent/US5720240A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008049527A1 (de) * | 2008-09-29 | 2010-04-01 | Deutz Ag | Positionierflächen an einem Gaswechselkanalrechen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0774576A1 (de) | 1997-05-21 |
| DE19542492C1 (de) | 1997-01-16 |
| DE59604364D1 (de) | 2000-03-09 |
| US5720240A (en) | 1998-02-24 |
| ES2144679T3 (es) | 2000-06-16 |
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