AT504983B1 - LIQUID-COOLED INTERNAL COMBUSTION ENGINE - Google Patents
LIQUID-COOLED INTERNAL COMBUSTION ENGINE Download PDFInfo
- Publication number
- AT504983B1 AT504983B1 AT0068008A AT6802008A AT504983B1 AT 504983 B1 AT504983 B1 AT 504983B1 AT 0068008 A AT0068008 A AT 0068008A AT 6802008 A AT6802008 A AT 6802008A AT 504983 B1 AT504983 B1 AT 504983B1
- Authority
- AT
- Austria
- Prior art keywords
- cylinder head
- cooling jacket
- cylinder
- region
- distance
- Prior art date
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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- 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
- F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
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- 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
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- 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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
- F02F2007/0063—Head bolts; Arrangements of cylinder head bolts
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
ijsttfftsÄhe AT504 983B1 2009-08-15ijsttfftsAre AT504 983B1 2009-08-15
Beschreibung [0001] Die Erfindung betrifft eine flüssigkeitsgekühlte Brennkraftmaschine mit einem einen Kühlmantel aufweisenden Zylinderblock mit mehreren Zylindern, wobei der Kühlmantel - in einer Seitenansicht auf den Zylinderblock betrachtet - in zumindest einem dem Kurbelraum zugewandten Bodenbereich einen wellenartigen Verlauf aufweist, wobei der in Richtung der Zylinderachse gemessene Abstand des Bodens des Kühlmantels von einer Zylinderkopfdichtebene im Bereich einer die Zylinderachse beinhaltenden ersten Motorquerebene und einer zumindest eine Zylinderkopfschraubenachse beinhaltenden zweiten Motorquerebene unterschiedlich ist, wobei der Abstand des Bodens des Kühlmantels im Bereich der zweiten Motorquerebene am geringsten ist.The invention relates to a liquid-cooled internal combustion engine having a cylinder block having a plurality of cylinders, wherein the cooling jacket has a wave-like course in at least one bottom region facing the crank chamber, the cylinder jacket facing in the cylinder axis measured distance of the bottom of the cooling jacket from a cylinder head density plane in the region of a cylinder axis containing the first engine transverse plane and at least one cylinder head screw axis containing second engine transverse plane is different, wherein the distance of the bottom of the cooling jacket in the region of the second engine transverse plane is the lowest.
[0002] Die US 5, 080. 049 beschreibt einen Zylinderblock für eine Brennkraftmaschine mit mehreren Zylindern, wobei die Zylinder von einem Kühlmantel umgeben sind. Der Kühlmantel weist auf einer Längsseite des Zylinderblockes einen wellenartigen Verlauf auf, wobei der Abstand des Bodens des Kühlmantels von der Zylinderkopfdichtebene im Bereich einer die Zylinderkopfschraubenachsen beinhaltenden Motorquerebene am geringsten ist.US 5 080 049 describes a cylinder block for an internal combustion engine with a plurality of cylinders, wherein the cylinders are surrounded by a cooling jacket. The cooling jacket has a wave-like course on a longitudinal side of the cylinder block, wherein the distance of the bottom of the cooling jacket from the cylinder head sealing plane in the region of a transverse engine transverse plane containing the cylinder head screw axes is lowest.
[0003] Die WO 95/21323 A1 offenbart ein Kühlsystem einer Zweitakt-Brennkraftmaschine mit mehreren Zylindern, die von einem Kühlmantel umgeben sind. Der Boden des Kühlmantels ist wellenartig gestaltet und steht im Bereich einer Motorquerebene zwischen zwei Zylindern über U-förmige Zweigpassagen und vertikale Kanalabschnitte mit einem unteren Kühlmittelsammler in Strömungsverbindung.WO 95/21323 A1 discloses a cooling system of a two-stroke internal combustion engine having a plurality of cylinders, which are surrounded by a cooling jacket. The bottom of the cooling jacket is wave-shaped and communicates with a lower coolant collector in the region of a transverse engine plane between two cylinders via U-shaped branch passages and vertical channel sections.
[0004] Aus der CN 2 751 151 Y ist ein Kühlmantel für ein Kurbelgehäuse bekannt, dessen Kühlmantelboden - in einer Seitenansicht betrachtet - wellenartig geformt ist. Der Kühlmantel weist dabei im Bereich einer die Zylinderachse beinhaltenden ersten Motorquerebene einen geringeren Abstand von der Zylinderkopfdichtebene auf, als im Bereich einer zweiten Motorquerebene zwischen zwei Zylindern. Dadurch soll die Kühlung von thermisch hoch belasteten Bereichen verbessert werden.From CN 2 751 151 Y, a cooling jacket for a crankcase is known, the cooling jacket bottom - viewed in a side view - is wave-shaped. The cooling jacket has a smaller distance from the cylinder head sealing plane in the region of a first engine transverse plane containing the cylinder axis than in the region of a second engine transverse plane between two cylinders. This is to improve the cooling of thermally highly stressed areas.
[0005] Nachteilig ist allerdings, dass im Bereich der Zylinderkopfschrauben hohe mechanische Belastungen auftreten, was im Extremfall zu Rissbildungen führen kann.The disadvantage, however, that high mechanical loads occur in the cylinder head bolts, which can lead to cracking in extreme cases.
[0006] Aufgabe der Erfindung ist es, diese Nachteile zu vermeiden und die mechanische Beanspruchung des Zylinderblockes zu Folge der Zylinderkopfschraubenkräfte zu verringern.The object of the invention is to avoid these disadvantages and to reduce the mechanical stress of the cylinder block as a result of the cylinder head bolt forces.
[0007] Erfindungsgemäß wird dies dadurch erreicht, dass im Bereich der zweiten Motorquerebene das Gewinde zumindest einer Zylinderkopfschraubenbohrung von der Zylinderkopfdichtebene zumindest so weit beabstandet ist, wie der Boden des Kühlmantels.According to the invention this is achieved in that in the region of the second engine transverse plane, the thread at least one cylinder head screw hole from the cylinder head density level is at least as far as the bottom of the cooling jacket.
[0008] Die Differenz der Abstände des Gewindes der Zylinderkopfschraubenbohrung und des Bodens des Kühlmantels von der Zylinderkopfdichtebene sollte etwa zwischen 0 und 30 mm betragen. Vorzugsweise ist vorgesehen, dass der kleinste Abstand des Gewindes von der Zylinderkopfdichtebene zwischen 60 bis 80% des Abstandes des Bodens des Kühlmantels im Bereich der ersten Motorquerebene beträgt.The difference of the distances of the thread of the cylinder head bolt hole and the bottom of the cooling jacket of the cylinder head density level should be approximately between 0 and 30 mm. It is preferably provided that the smallest distance of the thread from the cylinder head sealing plane is between 60 and 80% of the distance of the bottom of the cooling jacket in the region of the first engine transverse plane.
[0009] Dadurch, dass das Gewinde für die Zylinderkopfschrauben unterhalb des Kühlmantels beginnt, wird das Einleiten von Schraubenkräften in einen Bereich des Zylinderblockes mit geringer Wandstärke vermieden. Der Bereich des Zylinderblockes zwischen dem Kühlmantel und der Zylinderkopfschraubenbohrung unterliegt somit nur relativ geringen Spannungen, wodurch die Gefahr von Rissbildungen wesentlich reduziert wird.Characterized in that the thread for the cylinder head screws begins below the cooling jacket, the introduction of screw forces is avoided in a region of the cylinder block with a small wall thickness. The area of the cylinder block between the cooling jacket and the cylinder head bolt bore is thus subject to only relatively low stresses, which substantially reduces the risk of cracking.
[0010] Um eine ausreichende Wärmeabfuhr aus thermisch hoch beanspruchten Bereichen des Zylinderblocks zu gewährleisten, ist in Weiterführung der Erfindung vorgesehen, dass der Abstand des Bodens des Kühlmantels im Bereich der ersten Motorquerebene am größten ist.In order to ensure sufficient heat dissipation from thermally highly stressed areas of the cylinder block, is provided in continuation of the invention that the distance of the bottom of the cooling jacket in the region of the first engine transverse plane is greatest.
[0011] Die Erfindung wird im Folgenden anhand der Figuren näher erläutert.The invention will be explained in more detail below with reference to FIGS.
[0012] Es zeigen Fig. 1 einen Zylinderblock einer erfindungsgemäßen Brennkraftmaschine in 1/41 shows a cylinder block of an internal combustion engine according to the invention in 1/4
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0068008A AT504983B1 (en) | 2008-04-30 | 2008-04-30 | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
DE102009018355.8A DE102009018355B4 (en) | 2008-04-30 | 2009-04-23 | Liquid-cooled internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0068008A AT504983B1 (en) | 2008-04-30 | 2008-04-30 | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
Publications (3)
Publication Number | Publication Date |
---|---|
AT504983A2 AT504983A2 (en) | 2008-09-15 |
AT504983A3 AT504983A3 (en) | 2008-12-15 |
AT504983B1 true AT504983B1 (en) | 2009-08-15 |
Family
ID=39735832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0068008A AT504983B1 (en) | 2008-04-30 | 2008-04-30 | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT504983B1 (en) |
DE (1) | DE102009018355B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT512280A4 (en) * | 2012-02-08 | 2013-07-15 | Avl List Gmbh | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
WO2016179618A1 (en) | 2015-05-12 | 2016-11-17 | Avl List Gmbh | Liquid-cooled internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3011883B1 (en) * | 2013-10-15 | 2018-08-31 | Renault S.A.S. | "MOTOR BLOCK OF MOTOR VEHICLE" |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5080049A (en) * | 1991-05-10 | 1992-01-14 | General Motors Corporation | Two stroke engine with tiered cylinder cooling |
WO1995021323A1 (en) * | 1994-02-01 | 1995-08-10 | Orbital Engine Company (Australia) Pty. Limited | Two-stroke engine cooling system |
CN2751151Y (en) * | 2004-12-03 | 2006-01-11 | 长安汽车(集团)有限责任公司 | Structure improved crankcase water jacket |
-
2008
- 2008-04-30 AT AT0068008A patent/AT504983B1/en not_active IP Right Cessation
-
2009
- 2009-04-23 DE DE102009018355.8A patent/DE102009018355B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5080049A (en) * | 1991-05-10 | 1992-01-14 | General Motors Corporation | Two stroke engine with tiered cylinder cooling |
WO1995021323A1 (en) * | 1994-02-01 | 1995-08-10 | Orbital Engine Company (Australia) Pty. Limited | Two-stroke engine cooling system |
CN2751151Y (en) * | 2004-12-03 | 2006-01-11 | 长安汽车(集团)有限责任公司 | Structure improved crankcase water jacket |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT512280A4 (en) * | 2012-02-08 | 2013-07-15 | Avl List Gmbh | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
AT512280B1 (en) * | 2012-02-08 | 2013-07-15 | Avl List Gmbh | LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
WO2013117612A1 (en) | 2012-02-08 | 2013-08-15 | Avl List Gmbh | Liquid-cooled internal combustion engine |
WO2016179618A1 (en) | 2015-05-12 | 2016-11-17 | Avl List Gmbh | Liquid-cooled internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE102009018355B4 (en) | 2018-05-30 |
AT504983A2 (en) | 2008-09-15 |
AT504983A3 (en) | 2008-12-15 |
DE102009018355A1 (en) | 2009-11-26 |
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