EP2145088A2 - Moteur de vehicule automobile comportant un circuit de refroidissement innovant - Google Patents
Moteur de vehicule automobile comportant un circuit de refroidissement innovantInfo
- Publication number
- EP2145088A2 EP2145088A2 EP08788144A EP08788144A EP2145088A2 EP 2145088 A2 EP2145088 A2 EP 2145088A2 EP 08788144 A EP08788144 A EP 08788144A EP 08788144 A EP08788144 A EP 08788144A EP 2145088 A2 EP2145088 A2 EP 2145088A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water chamber
- motor vehicle
- cylinder head
- water
- engine
- 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
Classifications
-
- 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
- F02F1/02—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
-
- 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
- F01P2003/028—Cooling cylinders and cylinder heads in series
Definitions
- the invention relates to a motor vehicle engine.
- the invention more particularly relates to a motor vehicle engine comprising at least one engine block which comprises a row of aligned cylinders and which is capped with a cylinder head, an internal cooling circuit comprises successively, from upstream to downstream, the minus a cooling pump, an inlet, a first water chamber allowing the longitudinal circulation of a coolant along one side of the row of cylinders, a second chamber of water, allowing the circulation transverse coolant through a portion of the cylinder head, a third water chamber for the longitudinal circulation of the coolant along the opposite side of the row of cylinders, and an outlet port.
- thermal engines of this type are known.
- the cooling of the cylinder head is provided by a single water chamber. This design does not allow optimal cooling of the cylinder head.
- Another known design is to ensure the cooling of the cylinder head by two independent lower and upper water chambers, the upper water chamber being fed by the lower water chamber and having its own outlet orifice independent of the orifice output associated with a single water chamber arranged on both sides of the two sides of the row of cylinders.
- This design although offering better cooling of the cylinder head generates significant pressure drops in the water chamber arranged on both sides of the row of cylinders because of the presence of the outlet port associated with the upper water chamber of the cylinder head.
- the invention proposes a new cooling system design of an engine, comprising a cylinder head cooled by two lower and upper water chambers, reducing the pressure drops.
- the invention proposes a heat engine of the type described above, characterized in that the second water chamber is arranged in a lower part of the cylinder head and in that the cooling circuit further comprises a fourth chamber of water. water which is arranged in an upper part of the cylinder head, which is supplied upstream by the second water chamber, and which communicates downstream with the third water chamber.
- the fourth water chamber allows the longitudinal circulation of the cooling liquid in the upper part of the cylinder head
- the second water chamber is arranged close to the combustion chambers of the engine cylinders for cooling purposes and the fourth water chamber is intended in particular to ensure the degassing of the cooling circuit
- the fourth water chamber communicates with the third water chamber via orifices arranged at its longitudinal ends and associated ducts which pass through the second water chamber to lead directly into the third water chamber,
- the second water chamber is fed by the first water chamber via a series of orifices arranged longitudinally and it feeds the third water chamber via a series of orifices arranged longitudinally,
- the fourth water chamber is fed by the second water chamber via a series of orifices arranged at least transversely, the outlet orifice is arranged at a longitudinal end of the third water chamber,
- the outlet orifice is arranged in an intermediate portion of the third water chamber, - the cylinder head is made in two parts, separate cavities are associated with each of the third and fourth water chambers,
- the cylinder head is made in a single part within which subdivision means define two separate cavities respectively associated with the third and fourth water chambers.
- FIG. 1 is a schematic perspective view of an engine according to a first known design of the state of the art
- FIG. 2 is a schematic perspective view of an engine according to a second known design of the state of the art
- FIG. 3 is a schematic perspective view of an engine according to the invention.
- Figure 1 a first known design of a motor vehicle engine 10.
- the engine 1 0 comprises at least one engine block 1 2 which comprises a row of cylinders 14 aligned and which is capped with a cylinder head 1 6.
- the engine 10 comprises an internal cooling circuit which comprises successively, from upstream to downstream as shown by the arrows of FIG. 1, at least one cooling pump 1 5, an inlet orifice 18, a first water chamber 20 allowing the longitudinal circulation of a cooling liquid along one side of the row of cylinders 14, a second water chamber 22, allowing the transverse circulation of the coolant through a portion of the cylinder head 1 6, a third water chamber 24 allowing the circulation of the coolant along the side opposite of the row of cylinders 14, and an outlet port 26.
- the cooling of the cylinder head 16 is provided solely by the second water chamber 22. This design does not allow optimum cooling of the cylinder head, in particular in the vicinity of the combustion chambers (not shown) of the engine.
- a motor 10 may comprise a cylinder head 1 6 comprising two independent lower and upper water chambers 28, the upper water chamber 28 being fed by the chamber lower water 22, and having its own outlet port 30 independent of the outlet port 26 associated with a single water chamber 20 arranged on either side of both sides of the row of cylinders 14 of the engine block 12.
- This design although providing better cooling of the cylinder head 16 generates significant pressure drops in the water chamber arranged on either side of both sides of the row of cylinders, in particular because of the presence of the orifice outlet 30 associated with the upper water chamber 28 of the cylinder head.
- the invention proposes a motor 10 substantially having the basic characteristics of the first known design of the state of the art, and characterized in that the second chamber of water 22 is arranged in a lower part of the cylinder head 1 6 and in that the cooling circuit further comprises a fourth water chamber 28 which is arranged in an upper part of the cylinder head 16, which is fed upstream by the second chamber 22 of water, and which communicates downstream directly with the third water chamber 24.
- the fourth water chamber 28 allows the longitudinal circulation of the coolant in the upper part of the cylinder head 16.
- the cooling of the cylinder head 16 is organized according to specific needs.
- the lower part of the cylinder head 16 is arranged close to the combustion chambers of the cylinders 14 of the engine and is cooled by a transverse circulation in the second water chamber 22, which makes it possible to ensure optimum cooling of the combustion chambers. while the upper part of the cylinder head 16 is cooled by a longitudinal circulation, which makes it possible to ensure optimum degassing of the cooling circuit.
- the fourth water chamber 28 communicates with the third water chamber via orifices 31 arranged at its longitudinal ends 32 and associated ducts 34 which pass through the second water chamber 22 to open directly into the second water chamber 28. the third water chamber 24.
- the second water chamber 22 is fed by the first water chamber 20 through a series of orifices 36 arranged longitudinally and in that it feeds the water.
- third water chamber 24 through a series of orifices 38 arranged longitudinally.
- fourth water chamber 28 is fed by the second water chamber 22 via a series of orifices 40 arranged at least transversely.
- the arrangement of the outlet orifice 26 This can be arranged at a longitudinal end of the third water chamber 24, as shown in Figure 3, or alternatively (not shown) be arranged in an intermediate part of the third water chamber 24.
- the cylinder head 16 can be made in two parts, each having separate cavities associated with each of the third and fourth water chambers 22, 28.
- the cylinder head 16 may be is carried out in a single part within which subdivision means delimit two distinct cavities respectively associated with the third and fourth water chambers 22, 28.
- the invention thus makes it possible to substantially improve the cooling of a motor vehicle heat engine.
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)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Motor Or Generator Cooling System (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0755051A FR2916233B1 (fr) | 2007-05-14 | 2007-05-14 | Moteur de vehicule automobile comportant un circuit de refroidissement innovant |
| PCT/FR2008/050622 WO2008142325A2 (fr) | 2007-05-14 | 2008-04-08 | Moteur de vehicule automobile comportant un circuit de refroidissement innovant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2145088A2 true EP2145088A2 (fr) | 2010-01-20 |
| EP2145088B1 EP2145088B1 (fr) | 2011-06-08 |
Family
ID=39091617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08788144A Active EP2145088B1 (fr) | 2007-05-14 | 2008-04-08 | Moteur de vehicule automobile comportant un circuit de refroidissement innovant |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2145088B1 (fr) |
| AT (1) | ATE512293T1 (fr) |
| ES (1) | ES2363485T3 (fr) |
| FR (1) | FR2916233B1 (fr) |
| WO (1) | WO2008142325A2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2388463B1 (fr) * | 2010-05-17 | 2012-05-16 | Fiat Powertrain Technologies S.p.A. | Culasse pour moteur à combustion interne, avec collecteur d'échappement intégré |
| DE102014012503B4 (de) * | 2014-08-22 | 2017-07-13 | Audi Ag | Brennkraftmaschine mit Wassermantel zur Kühlung eines Kurbelgehäuses und eines Zylinderkopfs |
| CN108035816B (zh) * | 2017-11-17 | 2021-02-05 | 无锡开普动力有限公司 | V型大功率发动机气缸套冷却水腔的结构 |
| CN108547703B (zh) * | 2018-03-23 | 2020-05-08 | 重庆长安汽车股份有限公司 | 一种集成排气歧管的汽车发动机冷却水套结构 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2637941B1 (fr) * | 1988-10-18 | 1990-11-23 | Renault | Circuit de refroidissement pour moteur a combustion interne |
| JP3185581B2 (ja) * | 1995-02-09 | 2001-07-11 | トヨタ自動車株式会社 | 内燃機関の冷却装置 |
| DE19803885B4 (de) * | 1998-01-31 | 2013-02-07 | Bayerische Motoren Werke Aktiengesellschaft | Kühlkreisanordnung für eine flüssigkeitsgekühlte Brennkraftmaschine |
| JP3991676B2 (ja) * | 2001-12-25 | 2007-10-17 | 三菱自動車工業株式会社 | エンジンの冷却装置 |
| JP2003201842A (ja) * | 2002-01-07 | 2003-07-18 | Suzuki Motor Corp | エンジンの冷却装置 |
-
2007
- 2007-05-14 FR FR0755051A patent/FR2916233B1/fr not_active Expired - Fee Related
-
2008
- 2008-04-08 AT AT08788144T patent/ATE512293T1/de not_active IP Right Cessation
- 2008-04-08 ES ES08788144T patent/ES2363485T3/es active Active
- 2008-04-08 WO PCT/FR2008/050622 patent/WO2008142325A2/fr not_active Ceased
- 2008-04-08 EP EP08788144A patent/EP2145088B1/fr active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008142325A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2916233A1 (fr) | 2008-11-21 |
| EP2145088B1 (fr) | 2011-06-08 |
| WO2008142325A3 (fr) | 2009-01-15 |
| ES2363485T3 (es) | 2011-08-05 |
| FR2916233B1 (fr) | 2009-07-03 |
| ATE512293T1 (de) | 2011-06-15 |
| WO2008142325A2 (fr) | 2008-11-27 |
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