EP2929170A1 - Brennkraftmaschine - Google Patents
BrennkraftmaschineInfo
- Publication number
- EP2929170A1 EP2929170A1 EP13821061.2A EP13821061A EP2929170A1 EP 2929170 A1 EP2929170 A1 EP 2929170A1 EP 13821061 A EP13821061 A EP 13821061A EP 2929170 A1 EP2929170 A1 EP 2929170A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- internal combustion
- combustion engine
- valves
- cylinder
- 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 abstract description 47
- 239000002826 coolant Substances 0.000 claims abstract description 133
- 238000009826 distribution Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or 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
- F02F1/24—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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/024—Cooling cylinder heads
Definitions
- the invention relates to an internal combustion engine having a plurality of cylinders, which are each associated with two intake valves and two exhaust valves, which are each arranged in a valve seat of a cylinder head of the ' internal combustion engine, and améffenverteilhunt and ademediumammeihunt, wherein for each cylinder two coolant channels are formed in the cylinder head which are each fluidly connected to the corresponding coolant distribution chamber and the correspondingdestoffammeihunt.
- the internal combustion engine may have any number of cylinders. Alternatively, only a single cylinder can be provided.
- the cylinders are at least partially formed in a cylinder crankcase of the internal combustion engine and are completed or limited in a direction of the cylinder head. In this case, a combustion chamber of the cylinder is located on the side facing the cylinder head.
- each cylinder at least four valves are assigned. Two of the valves are designed as intake valves and two more of the valves as exhaust valves. The valves are arranged in valve seats of the cylinder head, which open into the cylinder or the combustion chamber.
- a cooling device is assigned to each cylinder.
- This consists of the coolant distribution chamber, the coolant collection chamber and at least two coolant channels.
- the coolant channels are formed in the cylinder head, are therefore in this before as cavities. This can also be the case for the two chambers. Alternatively, however, these can also be present in the cylinder crankcase, in particular be designed as cavities in this.
- the cavities of the cylinder head and / or the cylinder crankcase are produced, for example, during a casting process.
- the two coolant channels of each cylinder are fluidly connected to the coolant distribution chamber of the cylinder and the coolant collection chamber of the cylinder, so that a coolant, which is supplied to the coolant distribution chamber,
- CONFIRMATION COPY pass through the coolant channels in the coolant collection chamber and can be removed from there.
- a coolant flow is guided transversely to the internal combustion engine in the longitudinal direction from the outlet side to the inlet side of the cylinder head and a second receiving slot for a glow plug between two intake valves associated inlet channels at least partially surrounded by the coolant space, and that a region between an inlet channel and The second receiving shaft of coolant can be flowed through.
- a first of the coolant channels extends on a first side about a first of the inlet valves and on a first side opposite the second side to a first of the exhaust valves, and that a second of the coolant channels on the first side to a second of the inlet valves and on the second side extends around a second of the exhaust valves.
- the coolant channels are for example . S-shaped or have in the opposite case the shape of a mirrored about its vertical axis S.
- the coolant channels therefore have at least similar curvatures to each other or at least the same curvature.
- the first of the coolant channels is present in regions on the first side of the first of the inlet valves and partially on the second side of the first of the exhaust valves, while the second of the coolant channels in some areas on the first side of the second of the intake valves and partially disposed on the second side of the second of the exhaust valves.
- reliable cooling in the region between the two inlet valves can be achieved with such a design or such a profile of the coolant channels.
- an additional cooling channel must be present, through which the wall thickness is weakened in this area.
- the rigidity of the cylinder head must be increased. Accordingly, should be dispensed with additional cooling channels. This is possible with the aid of the course of the coolant channels described here.
- improved cooling of an injector arranged between the valves and / or a candle provided there, in particular spark plug and / or glow plug can be achieved.
- the coolant channels are arranged in the same plane, which is in particular perpendicular to longitudinal central axes of the cylinder. A curvature of the coolant channels is correspondingly only within the said plane or perpendicular to this before.
- the arrangement of the coolant channels in the same plane is to be understood that their longitudinal center axis is always in the same plane, while the coolant channels themselves, of course, survive on both sides over the plane to form a flow cross-section.
- the plane is perpendicular to the longitudinal axial axes of the cylinders, which coincide, for example, with a direction of movement of pistons arranged in the cylinders. This means that the wall thickness of the cylinder head can be kept constant, in particular in the area lying between the inlet valves, so that in this respect a higher rigidity is achieved in comparison with known internal combustion engines.
- each coolant distribution chamber is connected via a coolant inlet port and each coolant mixture chamber via a coolant outlet port to a coolant circuit of the internal combustion engine.
- Coolant can be supplied to the coolant distribution chamber via the coolant inlet connection, which coolant then passes through the coolant channels to the coolant collecting chamber. From this, the coolant can in turn be removed through the coolant outlet port.
- Both the coolant inlet port and the coolant outlet port are connected to the coolant medium circuit of the internal combustion engine connected or at least connectable.
- the coolant inlet ports of all cylinders and the coolant outlet ports of all cylinders are connected in parallel to each other to the coolant circuit; the coolant channels are thus also fluidically parallel to each other and not connected in series.
- a development of the invention provides that the coolant channels of each cylinder have the same flow cross-section. Thus, there is no difference in the flow cross sections between the coolant channels assigned to the cylinders. Particularly preferably, the coolant channels of all cylinders are formed with the same flow cross-section. Furthermore, provision may be made for the coolant channels to have the same flow cross-section over their entire longitudinal extension, that is to say in the main flow direction of the coolant.
- a further embodiment of the invention provides that the first of the inlet valves and the first of the exhaust valves and the second of the inlet valves and the second of the exhaust valves are each arranged symmetrically relative to each other with respect to a plane of symmetry extending through the longitudinal central axis.
- the planes of symmetry of all cylinders are arranged parallel to one another.
- the plane of symmetry is preferably perpendicular to a longitudinal axis of the internal combustion engine running through all longitudinal central axes of the cylinders.
- a coolant line to branch off fluidically between the coolant distribution chamber and the coolant collecting chamber of at least one of the coolant channels.
- the coolant channels are fluidly connected only via the coolant distribution chamber and the coolant collection chamber. So they are fluidly separated along their course.
- coolant is taken from or fed to at least one of the coolant channels, for which purpose the coolant line opens into this coolant channel or branches off from it.
- the coolant line is connected on its side facing away from the coolant channel to a further region of the internal combustion engine, for example a cooling pocket of the internal combustion engine or of the cylinder head.
- the invention further relates to a method for producing an internal combustion engine, in particular an internal combustion engine according to the foregoing.
- the internal combustion engine has several cylinders, each having two intake valves and two exhaust valves are assigned, which are each arranged in a valve seat of a cylinder head of the internal combustion engine.
- Each cylinder is also associated with a coolant distribution chamber and a coolant collection chamber formed in either the cylinder head or a cylinder crankcase and at least two coolant channels formed in the cylinder head.
- the coolant channels are each fluidly connected to the corresponding coolant distribution chamber and the corresponding coolant collection chamber.
- a first of the coolant passages are formed on a first side about a first of the intake valves and on a second side opposite the first side about a first of the exhaust valves.
- a second of the coolant channels is formed on the first side to a second of the intake valves and on the second side extending around a second of the exhaust valves.
- the advantages of such an arrangement have already been discussed above.
- the internal combustion engine and the method for the production thereof can be developed further in accordance with the above statements, so that reference is made to this extent.
- the production of the coolant channels is preferably mitange e of sand cores.
- the coolant channels and the coolant distribution chamber and the coolant collection chamber are preferably formed completely in the cylinder head.
- an at least partial, in particular complete, arrangement in the cylinder crankcase can be provided for the two chambers.
- Figure shows a sectional view of a cylinder head of an internal combustion engine having a plurality of cylinders.
- the figure shows a sectional view through an area of an internal combustion engine 1, namely through a cylinder head 2 of the internal combustion engine 1.
- the internal combustion engine 1 has a plurality of cylinders, not shown here, which are each associated with two intake valves and two exhaust valves, which are not shown here.
- the inlet valves are arranged in valve seats 3 and 4, the exhaust valves in valve seats 5 and 6 or can be arranged.
- the arrangement of an inlet valve or outlet valve is spoken, it is always the arrangement of the corresponding valve receptacle 3 to 6 or vice versa meant.
- each cylinder adeffenverteilhunt 8, adeffensammeihunt 9 and at least two coolant channels 10 and 1 1 are assigned.
- the coolant channels 10 and 1 1 all run in the same plane, in particular a plane which is perpendicular to the longitudinal central axes 12 of the cylinder.
- the level corresponds to the drawing level selected here. In this case, centers of the coolant channels 10 and 1 1 each extend in this plane, while the coolant channels 10 and 1 1 of course extend downwards and upwards over this plane.
- the coolant channels 10 and 1 1 in the embodiment shown here are each configured S-shaped. Alternatively, however, a mirrored configuration can also be provided. The design takes place in such a way that the cooling medium passages 10 and 11 run fluidically separated from the coolant distribution chamber 8 to the coolant collecting chamber 9.
- One of the coolant channels 10 and 1 1, in this case the coolant channel 1 1, extends in plan view between the valve seats 3 and 4 for the inlet valves and the other of the cooling medium channels 10 and 1 1, here the coolant channel 1 1, between the valve seats 5 and 6 for the exhaust valves. In this way, a particularly good cooling effect for the intake valves and the exhaust valves is achieved.
- the coolant distribution chamber 8 receives coolant from a coolant circuit of the internal combustion engine 1 via a coolant inlet port. This subsequently flows from the coolant distribution chamber 8 into the coolant collecting chamber 9 and from this passes through a coolant outlet port again into the coolant circuit of the internal combustion engine 1.
- the coolant inlet connections of all cylinders are preferably connected in parallel to the coolant circuit of the internal combustion engine 1.
- a coolant line 13 branches off. This is on its side facing away from the coolant channels 10 side to a coolant pocket 14, which is also formed in the cylinder head 2, connected. With the aid of the coolant line 13, regions of the cylinder head 2 arranged remotely from the valve seats 3 to 6 can be reliably supplied with coolant.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012023803.7A DE102012023803B3 (de) | 2012-12-05 | 2012-12-05 | Brennkraftmaschine |
PCT/EP2013/003669 WO2014086489A1 (de) | 2012-12-05 | 2013-12-05 | Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2929170A1 true EP2929170A1 (de) | 2015-10-14 |
EP2929170B1 EP2929170B1 (de) | 2017-02-22 |
Family
ID=49944218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13821061.2A Not-in-force EP2929170B1 (de) | 2012-12-05 | 2013-12-05 | Brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US9828935B2 (de) |
EP (1) | EP2929170B1 (de) |
CN (1) | CN104968924B (de) |
DE (1) | DE102012023803B3 (de) |
WO (1) | WO2014086489A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2551961B (en) * | 2016-06-24 | 2019-06-05 | Jaguar Land Rover Ltd | Coolant apparatus |
CN111911309B (zh) * | 2019-05-08 | 2022-11-15 | 康明斯公司 | 用于提供衬套的改善的冷却性能的汽缸缸体设计 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2236028A1 (de) * | 1971-08-03 | 1973-03-01 | List Hans | Zylinderkopf fuer eine wassergekuehlte brennkraftmaschine |
DE2460972C2 (de) * | 1974-12-21 | 1982-07-15 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Flüssigkeitsgekühlter Zylinderkopf |
DE2514592C2 (de) * | 1975-04-03 | 1982-10-14 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Einzelzylinderkopf |
DE3802886A1 (de) | 1987-02-04 | 1988-08-18 | Avl Verbrennungskraft Messtech | Zylinderkopf fuer wassergekuehlte brennkraftmaschinen |
DE4420130C1 (de) * | 1994-06-09 | 1995-11-16 | Mtu Friedrichshafen Gmbh | Zylinderkopf für Brennkraftmaschine |
US20020124815A1 (en) * | 2001-03-06 | 2002-09-12 | Toyota Jidosha Kabushiki Kaisha | Cooling structure of cylinder head and method for manufacturing cylinder head |
JP3916056B2 (ja) * | 2002-04-11 | 2007-05-16 | いすゞ自動車株式会社 | シリンダヘッド |
DE10321035B3 (de) * | 2003-05-10 | 2005-01-13 | Daimlerchrysler Ag | Brennkraftmaschine mit einem Zylinderkopf |
US6810838B1 (en) * | 2003-06-12 | 2004-11-02 | Karl Harry Hellman | Individual cylinder coolant control system and method |
US7234422B2 (en) * | 2005-09-13 | 2007-06-26 | Gm Global Technology Operations, Inc. | Engine cooling method and apparatus |
DE102005048566A1 (de) * | 2005-10-11 | 2007-04-12 | Man Nutzfahrzeuge Ag | Selbstzündende Brennkraftmaschine mit Brennräumen für hohe Zünddrücke |
DE102005050510A1 (de) * | 2005-10-21 | 2007-04-26 | Bayerische Motoren Werke Ag | Zylinderkopf für eine wassergekühlte Brennkraftmaschine |
DE102005054510A1 (de) | 2005-11-16 | 2007-05-24 | Voith Patent Gmbh | Tissuemaschine |
JP4756381B2 (ja) * | 2007-02-07 | 2011-08-24 | トヨタ自動車株式会社 | 多気筒エンジンの冷却装置 |
DE102008051130B4 (de) * | 2008-10-10 | 2021-01-14 | Audi Ag | Kühlsystem für eine Brennkraftmaschine sowie Brennkraftmaschine |
US8757111B2 (en) | 2011-03-24 | 2014-06-24 | GM Global Technology Operations LLC | Engine assembly including cooling system |
US8960134B1 (en) * | 2013-07-31 | 2015-02-24 | GM Global Technology Operations LLC | Targeted cooling with individualized feeding ports to cylinders |
-
2012
- 2012-12-05 DE DE102012023803.7A patent/DE102012023803B3/de not_active Withdrawn - After Issue
-
2013
- 2013-12-05 US US14/759,145 patent/US9828935B2/en active Active
- 2013-12-05 CN CN201380072211.XA patent/CN104968924B/zh active Active
- 2013-12-05 WO PCT/EP2013/003669 patent/WO2014086489A1/de active Application Filing
- 2013-12-05 EP EP13821061.2A patent/EP2929170B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2014086489A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102012023803B3 (de) | 2014-02-06 |
CN104968924A (zh) | 2015-10-07 |
US20160025033A1 (en) | 2016-01-28 |
CN104968924B (zh) | 2018-04-03 |
WO2014086489A1 (de) | 2014-06-12 |
US9828935B2 (en) | 2017-11-28 |
EP2929170B1 (de) | 2017-02-22 |
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