EP1253310A2 - Wassergekühlter Zylinderkopf für eine Brennkraftmaschine - Google Patents
Wassergekühlter Zylinderkopf für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1253310A2 EP1253310A2 EP02005553A EP02005553A EP1253310A2 EP 1253310 A2 EP1253310 A2 EP 1253310A2 EP 02005553 A EP02005553 A EP 02005553A EP 02005553 A EP02005553 A EP 02005553A EP 1253310 A2 EP1253310 A2 EP 1253310A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- cooling water
- end wall
- head according
- water channel
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 5
- 239000000498 cooling water Substances 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 description 7
- 238000005094 computer simulation Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 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
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
Definitions
- the invention relates to a water-cooled cylinder head for an internal combustion engine, with a receiving shaft for receiving a camshaft drive element, especially a timing chain.
- the waste heat generated in the engine block and cylinder head area of an engine is usually through a closed, and through a heat exchanger (Cooler) running cooling water circuit discharged to the environment.
- the upheaval of the cooling water can be supported by a cooling water pump which preferably by the internal combustion engine itself, for example via a Drive belt that is driven.
- the integration of the heat exchanger in the Cooling water circuit can be done via pipe and hose lines. With regard for the engine to warm up as quickly as possible to a favorable operating temperature it is possible to use the heat exchanger as part of an engine start phase to bridge until a "small" cooling water circuit circulating cooling water has reached a predetermined temperature.
- the closing the cooling water pipe bridging the heat exchanger and the isolation the cooling water path leading via the heat exchanger is preferably carried out thermostatic switch.
- the pipe or outside the engine Hose lines are exposed to external influences to an increased extent prove themselves also with regard to the professional necessary for their installation Assembly technology as costly.
- the invention has for its object to provide an internal combustion engine, in which a favorable water supply of the cooling water circuit under one reduced assembly effort is achieved.
- a cylinder head for a Internal combustion engine with a covering a camshaft drive shaft Shaft end wall, a cooling water channel being formed in the shaft end wall which is from a cooling water inlet area to a cooling water outlet area extends.
- the shaft end wall is preferably double-walled, so that the Cooling water channel through the opposite walls of the Shaft end wall is formed.
- the cylinder head is also preferably made as a cast component.
- the cooling water channel can in a technically favorable manner by a lost core can be made.
- cooling water channel extends into a seat area, in which the cylinder head sits on the engine block.
- the transition area from the cooling water channel in the Engine block through a cylinder head gasket with appropriate openings seal is given by that the cooling water channel extends into a seat area, in which the cylinder head sits on the engine block.
- the cooling water channel has the Invention has a substantially flat-rectangular cross-section. hereby it becomes possible to have a comparatively large one within the shaft end wall To achieve channel cross-section. In a further advantageous manner, it is thereby possible, the outward-facing wall of the cooling water channel as a heat exchanger surface to use.
- the cooling water channel extends essentially over the entire width of the cylinder head. This makes it possible through the cylinder head even one that spans the entire width of the engine To provide line facility.
- the solution according to the invention is particularly suitable for cylinder heads with two overhead camshafts.
- These camshafts are preferably in half bearing seats formed in the cylinder head.
- the cylinder head side Sections of the bearing seats of both camshafts are below one through which Axes of the two camshafts define the bearing axis plane.
- the shaft end wall preferably extends between this bearing axis plane and the cylinder head / engine block seating area. This makes it possible to through the shaft end wall formed shaft above through a valve cover or cover the camshaft housing and at the bottom by the engine block.
- the cooling water channel preferably extends to a thermostat connecting flange surface.
- This thermostatic flange surface is preferred formed by machining on the cylinder head. in the The area of this thermostat connection surface is preferably a thermostat-controlled one Branch of the cooling water paths.
- the one through the shaft end wall The running cooling water channel preferably forms a cooler bypass channel Via which a defined cooling water flow, in particular during a cold start phase bypassing the actual heat exchanger to the water pump can be traced back.
- the cylinder head 1 shown in perspective in sections in FIG. 1 comprises one Manhole end wall 2.
- the manhole end wall 2 is part of an aluminum casting process integrally formed with the cylinder head 1.
- the shaft end wall 2 extends over the entire width of the cylinder head 1 and from a cylinder head seat 3 to one, through the camshaft axes X1, X2 defined level.
- the shaft end wall delimits a camshaft drive shaft 7 to accommodate a timing chain or other Camshaft drive member, for example, a spur gear.
- the lengthways of the cylinder head measured depth of the camshaft drive shaft 7 corresponds approximately to 1.2 to 2 times the width of one in the camshaft shaft introduced timing chain or a spur gear accommodated therein.
- the shaft end wall 2 is designed and encompassed as a double-walled structure an outer channel wall 5 and an inner channel wall 6.
- the channel walls 5, 6 delimit a cooling water channel formed in the shaft end wall 2 4.
- the cooling water channel 4 has a substantially flat cross section on.
- the cooling water channel 4 does not share a bearing seat 8 here shown sprocket.
- a fastening structure 9, 10 is integral with the shaft end wall 2 molded over which the cylinder head 1 is suspended on a suspension part can be.
- the initiation of those acting on the fastening structure 9, 10 Forces in the cylinder head, is due to the double-walled shaft end wall 2 supported in an advantageous manner.
- a cooling water outlet duct 11 is also formed on the cylinder head 1, through which the cooling water guided in the cylinder head 1 emerges from the latter can.
- cylinder head 1 a machining flange surface 12 is formed by machining.
- the shaft end wall 2 forms in the area of the camshaft axes X1, X2 Bearing seat halves 14, 15 for the storage of camshafts, their drive wheels or a timing adjustment device.
- Fig. 2 is in the form of a 3D computer simulation through the shaft end wall 2 fluid path 4 ′ formed in the cylinder head 1 by the cooling water channel 4 shown.
- the fluid path 4 ′ extends from one cooling water inlet area 16 to one Cooling water outlet area 17.
- the fluid path 4 ' divides to form one Island 18 in the area of the bearing seat 8 shown in FIG. 1. Through the im Area of the bearing seat 8 and the island 18 provided connection of the two Walls 5, 6 a high structural strength is achieved.
- the fluid path 4 has an im over the major part of its course essentially flat-rectangular cross-section.
- the fluid path 4 ′ bends inward toward the Engine block 19 down and opens out via a cylinder head seat 20 below Utilization of the sealing effect of a cylinder head gasket in one, in the engine block 19 trained water pump channel 21.
- the fluid path 4 forms a bypass via which a cooling water flow 11 'flowing out of the cylinder head 1 through a Thermostat arrangement 22 controlled to the engine block 19 or to a water pump can be traced back.
- the one formed in the shaft end wall 2 Cooling water channel 4 can, however, also be integrated into the fluid circuit in this way be that this in the opposite direction, for example to lead out the Cooling water flows through from 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)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
- Fig.1
- eine perspektivische Detailansicht des Endbereiches eines Zylinderkopfes mit integraler, doppelwandiger Schachtstirnwand, wobei die Schachtstirnwand hier zwecks Einblick in deren Innenbereich geschnitten dargestellt ist;
- Fig.2
- eine 3D-Computersimulation zur Erläuterung der erfindungsgemäßen Kühlwasserführung von einem Anschlußflanschbereich bis in einen Motorblock.
Claims (11)
- Zylinderkopf für eine Brennkraftmaschine mit einer, einen Nockenwellenantriebsschacht (7) abdeckenden Schacht-Stirnwand (2), wobei in der Schacht-Stirnwand (2) ein Kühlwasserkanal (4) ausgebildet ist, der sich von einem Kühlwassereintrittsbereich zu einem Kühlwasseraustrittsbereich hin erstreckt.
- Zylinderkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Schacht-Stirnwand (2) integral mit dem Zylinderkopf ausgebildet ist.
- Zylinderkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich der Kühlwasserkanal (4) im wesentlichen quer zur Längsrichtung des Zylinderkopfes erstreckt.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Schacht-Stirnwand (2) doppelwandig ausgebildet ist.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Zylinderkopf als Gußbauteil gefertigt ist.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Kühlwasserkanal (4) sich bis in einen Sitzflächenbereich hinein erstreckt, in welchem der Zylinderkopf auf einem Motorblock aufsitzt.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Kühlwasserkanal (4) einen flach-rechteckförmigen Querschnitt aufweist.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Kühlwasserkanal (4) sich im wesentlichen über die gesamte Breite des Zylinderkopfes erstreckt.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Zylinderkopf zwei Nockenwellen lagert, und daß sich die Schacht-Stirnwand (2) von dem Zylinderkopf/Motorblock-Sitzflächenbereich bis auf Höhe der Nockenwellenachsen (X1, X2) erstreckt.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Kühlwasserkanal (4) sich bis zu einer Thermostat-Anschlußflanschfläche erstreckt.
- Zylinderkopf nach wenigstens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Kühlwasserkanal (4) einen Kühler-Bypasskanal bildet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001121063 DE10121063A1 (de) | 2001-04-28 | 2001-04-28 | Wassergekühlter Zylinderkopf für eine Brennkraftmaschine |
| DE10121063 | 2001-04-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1253310A2 true EP1253310A2 (de) | 2002-10-30 |
| EP1253310A3 EP1253310A3 (de) | 2003-07-09 |
| EP1253310B1 EP1253310B1 (de) | 2006-06-28 |
Family
ID=7683201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020005553 Expired - Lifetime EP1253310B1 (de) | 2001-04-28 | 2002-03-11 | Wassergekühlter Zylinderkopf für eine Brennkraftmaschine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1253310B1 (de) |
| DE (2) | DE10121063A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9528464B2 (en) | 2014-08-11 | 2016-12-27 | Ford Global Technologies, Llc | Bore bridge cooling passage |
| US9950449B2 (en) | 2015-03-02 | 2018-04-24 | Ford Global Technologies, Llc | Process and tool for forming a vehicle component |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3603674A1 (de) * | 1986-02-06 | 1987-08-13 | Porsche Ag | Mehrzylindrige brennkraftmaschine |
| DE8621654U1 (de) * | 1986-08-12 | 1986-09-25 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Zylinderkopf für eine flüssigkeitsgekühlte Brennkraftmaschine |
| JP2505566Y2 (ja) * | 1987-11-26 | 1996-07-31 | 日産自動車株式会社 | ウォ―タポンプ装置 |
| DE4015409C1 (de) * | 1990-05-14 | 1991-06-13 | Audi Ag, 8070 Ingolstadt, De | |
| AT404164B (de) * | 1991-03-20 | 1998-09-25 | Avl Verbrennungskraft Messtech | Zylinderkurbelgehäuse einer brennkraftmaschine mit wasserkühlung |
| DE4326158C2 (de) * | 1993-08-04 | 1995-05-11 | Daimler Benz Ag | Flüssigkeitsführung für eine Brennkraftmaschine |
| DE19628400C1 (de) * | 1996-07-15 | 1998-01-29 | Daimler Benz Ag | Kurbelgehäuse für einen Verbrennungsmotor |
| GB2329675A (en) * | 1997-09-27 | 1999-03-31 | Mechadyne Ltd | I.c. engine front cover with oil supply passages |
| DE19743445A1 (de) * | 1997-10-01 | 1999-04-08 | Man Nutzfahrzeuge Ag | Kühl- und Schmiermittelführung für Brennkraftmaschinen |
| DE19754009A1 (de) * | 1997-12-05 | 1999-03-04 | Daimler Benz Ag | Wassergekühlte Hubkolbenbrennkraftmaschine |
-
2001
- 2001-04-28 DE DE2001121063 patent/DE10121063A1/de not_active Withdrawn
-
2002
- 2002-03-11 DE DE50207353T patent/DE50207353D1/de not_active Expired - Fee Related
- 2002-03-11 EP EP20020005553 patent/EP1253310B1/de not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9528464B2 (en) | 2014-08-11 | 2016-12-27 | Ford Global Technologies, Llc | Bore bridge cooling passage |
| US9950449B2 (en) | 2015-03-02 | 2018-04-24 | Ford Global Technologies, Llc | Process and tool for forming a vehicle component |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50207353D1 (de) | 2006-08-10 |
| EP1253310A3 (de) | 2003-07-09 |
| DE10121063A1 (de) | 2002-10-31 |
| EP1253310B1 (de) | 2006-06-28 |
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