EP2309106B1 - circuit de refroidissement - Google Patents
circuit de refroidissement Download PDFInfo
- Publication number
- EP2309106B1 EP2309106B1 EP09166864.0A EP09166864A EP2309106B1 EP 2309106 B1 EP2309106 B1 EP 2309106B1 EP 09166864 A EP09166864 A EP 09166864A EP 2309106 B1 EP2309106 B1 EP 2309106B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- region
- block
- outlet
- thermostat
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims description 74
- 239000002826 coolant Substances 0.000 claims description 94
- 238000002485 combustion reaction Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
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- 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
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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
- F01P2003/027—Cooling cylinders and cylinder heads in parallel
-
- 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
-
- 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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/12—Turbo charger
-
- 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
- F01P2070/00—Details
- F01P2070/04—Details using electrical heating elements
Definitions
- the invention relates to an internal combustion engine having a coolant circuit which is divided into a cylinder block side coolant region and a cylinder head side coolant region, wherein the cylinder block side coolant region has at least one block thermostat.
- the EP 1 375 857 A discloses a cooling device for an internal combustion engine.
- the cooling device has a plurality of cooling cells in a cylinder head, which are separated from each other and can be traversed by a cooling liquid.
- the cooling device further comprises at least first and second means for controlling the flow rate, wherein the means for controlling the flow rate to at least a first cooling cell of the cylinder head and at least a second cooling cell of the cylinder head are connected.
- the first and second means are capable of controlling the amount of cooling liquid flowing through each first cooling cell and every second cooling cell, respectively.
- the DE 10 2005 033 338 A1 relates to an internal combustion engine having a cylinder housing with a plurality of juxtaposed cylinders and a cylinder head.
- the cylinder head closes off the cylinder housing on a cover surface, a cylinder head gasket being arranged between these two components.
- a first main liquid space is arranged, which serves the cooling of the cylinder and the coolant transport.
- a first cooling liquid gap is arranged at or near the top surface of the cylinder housing as a flow connection, which extends in a land area between two cylinders.
- the cooling in the region of the cylinder land and the cylinder head gasket should be substantially improved.
- the second cooling liquid gap is in flow communication with a main liquid space in the cylinder head.
- the EP 0 197 365 A2 discloses a device for the technical production of a cooling device of webs between adjacent, extremely closely cogged cylinders of a cylinder block of an internal combustion engine, the cylinder walls are surrounded on both longitudinal sides and end faces of the cylinder block of a cooling water jacket, with a core for forming the cooling water jacket.
- the EP 1 217 198 B1 is concerned with a cooling system for cooling a cylinder web, wherein at least one water channel extends exclusively on one side of a vertical axis through the center of the cylinder web.
- the EP 1 698 770 A1 deals with the split-cooling system, not only cylinder block and cylinder head are controlled separately by coolant technology, but also the cylinder head is divided into separate cooling areas. This is advantageous in that a well controllable and optimized heat balance, in particular of the cylinder head, is achieved, the warm-up behavior of the internal combustion engine being decisively improved.
- a "split cooling system" is also in the document FR2 905 423 disclosed.
- the invention has for its object to provide an internal combustion engine of the type mentioned above, the cooling or warm-up behavior is further improved by simple means.
- the object is achieved by an internal combustion engine having the features of claim 1, wherein the cylinder-side coolant region has an outlet-side cooling region and an inlet-side cooling region, wherein coolant from the inlet-side cooling region can be guided into an outlet housing, in which the outlet-side cooling region opens, wherein a coolant pump outlet is arranged in front of the block thermostat at least one branch, which leads a first partial flow in the direction of the outlet side cooling region of the cylinder head side coolant region, wherein the at least one branch is connected directly to the coolant pump outlet, wherein the flows through the block thermostat flowing coolant flow through the cylinder block side coolant region and from here into the inlet side cooling region of the cylinder head side K wherein the cylinder block-side coolant region communicates with the inlet-side cooling region through a cylinder head gasket, the outlet housing having a control, and wherein the coolant flows flowing out of the exhaust-side and inlet-side cooling regions mix in the flow direction upstream of the control element in the outlet housing two entering
- the invention is based on the finding that the split-cooling system can be improved in that the cooling system is not only divided into a cylinder block area and a cylinder head area, but also the cylinder head is divided into an outlet-side cooling area and an inlet-side cooling area.
- skilful cooling strategy so different areas of the engine, especially in its warm-up phase can be controlled by controls. For example, a coolant flow in a first phase has a magnitude of zero, wherein in a second phase, the outlet side of the cylinder head is cooled. Only in a third phase of the cylinder block is cooled. This has proven to be practical proved as the internal combustion engine can be led to the required operating temperature as soon as possible.
- the coolant flow through the cylinder block is controlled by means of a block thermostat. But flows z. B. during the warm-up phase, no coolant through the cylinder block, because the block thermostat is closed, the resulting heat, such as frictional heat, which is not dissipated, a warming example of lubricant, which is indeed desirable to improve the warm-up properties.
- the coolant can be warmed up so far that vapor bubbles arise, which collect in the upper region of the cylinder block, and displace there actually existing coolant.
- the so-called cylinder web or cylinder block web is arranged, which separates adjacent liners from each other.
- this can be provided with a bore or a slot, wherein the slot can be connected directly to the block water jacket.
- the vapor bubbles now displace the coolant just in this cooling device within the web or in the upper region of the cylinder block-side coolant region.
- the block thermostat must be opened in order to avoid displacing the coolant in the upper area. With the solution according to the invention, however, it is possible to keep the block thermostat, especially in the warm-up phase of the internal combustion engine longer closed because the resulting vapor bubbles can be derived from the upper region of the cylinder block.
- the cylinder-head-side coolant region preferably its inlet-side cooling region is coupled to the block water jacket; because the block water jacket is z. B. via a transfer in the cylinder head, z. B. the cooling slot in cylinder web and z.
- a crossing for cross-section seen opposite arranged outlet in the cylinder head indirectly in conjunction with the cylinder head side coolant region, or preferably with the inlet side cooling region, so that a derivation of the vapor bubbles in the cylinder head is possible, even if the block thermostat is closed.
- the resulting vapor bubbles are thus transported into the cylinder head, in particular in the inlet-side cooling region.
- the cylinder block side cooling area can also by the Cylinder head gasket through with the inlet side coolant directly communicate.
- a plurality of such compounds may be provided from the cylinder block side cooling region to the inlet side coolant region.
- Another advantage of the invention lies in the fact that when the block thermostat is open a significantly improved cooling of the cylinder web is achievable.
- the coolant can follow the previously described path from the block water jacket, via the crossing, the cooling slot and the outlet into the cylinder-head-side coolant region or its inlet-side cooling region.
- the coolant cools the cylinder head or preferably the inlet side of the cylinder head, and enters the outlet housing without first having contact with the coolant jacket of the outlet-side cooling region or the water jacket there.
- the coolant for cooling the outlet side flows through z. B. the upper and lower shell of the outlet side cooling region and then also enters the outlet housing, in which mixes the coolant flow from the inlet side cooling region and from the outlet side cooling region.
- the block thermostat controls the flow of coolant through the cylinder block, wherein the coolant flow is divided before the block thermostat at least in a partial flow, which enters the outlet side cooling region of the cylinder head side coolant region.
- a control element for example a thermostat, may be arranged in the respective branch to the outlet-side coolant region.
- a favorable embodiment can be provided to arrange two branches in front of the block thermostat, wherein a partial flow is passed through the first branch to the outlet side coolant region, and wherein the second branch z. B. is connected to a turbocharger. Both branches are preferably connected to the coolant pump outlet. Of course, the second branch may branch off from the first.
- block thermostat is integrated with its housing in the cylinder block, but can also be designed as a separate component.
- the outlet housing is designed as a separate housing in which the two partial flows open out of the outlet-side and inlet-side coolant area.
- the control is arranged in the outlet housing, and preferably designed as an electrically controllable thermostat. In the flow direction behind the control further components of a cooling system of a motor vehicle are arranged.
- the outlet-side coolant region is arranged in the sense of the invention on the outlet side or exhaust side, wherein the inlet-side coolant region in the meaning of the invention is assigned to the rest of the cylinder head so the respective combustion chamber and the inlet side.
- FIG. 1 shows an internal combustion engine 1, which has a coolant circuit 2.
- the coolant circuit 2 is divided into a cylinder block-side coolant region 3 or cylinder block water jacket and into a cylinder head-side coolant region 4 or headwater jacket, so that a split-cooling system is formed.
- the cylinder-head-side coolant area 4 is further divided by way of example into an outlet-side cooling area 6 and an inlet-side cooling area 7, which of course is not intended to be limiting, wherein a coolant flow in the respective cooling or coolant area 2, 3, 4, 6, 7 is separately controllable ,
- the coolant circuit 2 according to FIG. 1 a coolant pump 13.
- a block thermostat 14 is integrated, wherein in front of the block thermostat 14, for example, two branches 16, 17 are arranged.
- the block thermostat 14 is z. B. executed as a wax element, which allows the coolant flow to pass only in one direction, so that a backflow of the coolant in the closed block thermostats in the direction of the coolant pump 13 is avoided.
- an electrically controlled block thermostat is conceivable.
- One of the branches 16 is directly connected to a turbocharger 18, wherein an output connection 19 of the turbocharger 18 opens into a connecting line 21, which opens into a surge tank 25.
- the connecting line 21 is designed as a vent line, shown dotted and is based on a thermostat 22.
- the other branch 17 is connected to the outlet side cooling portion 6 of the cylinder head.
- the block thermostat 14 is meaningfully required for the split-cooling system.
- the coolant which passes through this block thermostat 14 (arrow 26) flows through the cylinder block-side cooling region 3, passes through the cylinder head gasket 5 into the cylinder head, in particular into the inlet-side cooling region 7, flows through the inlet-side cooling region 7, thereby cooling, inter alia, the inlet side 27 of the internal combustion engine 1, and without first making contact with the coolant (water jacket) flowing in the outlet-side cooling section 6, enters an outlet housing 28 (arrow 29).
- the coolant for cooling the outlet side 31 of the cylinder head flows through the outlet-side cooling region 6 and also enters the outlet housing 28 (arrow 32).
- both coolant streams are mixed in front of the thermostat 22.
- a return of the coolant can then take place, for example via a vent valve 34, an EGR cooler 36, a cabin heater 37, an oil heat exchanger 38 and main cooler 39 back to the coolant pump 13.
- this return should only be exemplary, with a different order or bypass lines as in FIG. 1 shown are conceivable.
- the thermostat 22 may also be connected, as shown, to the main radiator 39, which is connected to the coolant pump inlet 23 via a connecting line 41. It is also possible, the thermostat 22 connect via a bypass 42 with the coolant pump inlet 23. As shown, the oil heat exchanger 38 also opens into the coolant pump inlet 23. Dotted is a connection 43 from the main cooler 39 to the expansion tank 22.
- the thermostat 22 can be electrically controlled, or z. B. be executed as a map thermostat.
- the housing of the block thermostat 14 is integrated in the cylinder block.
- the block thermostat 14 may also be designed as a separate component.
- the coolant pump outlet is connected with the interposition of the block thermostat 14 directly to the cylinder block, or the cylinder block side coolant area 3.
- the line for supplying the exhaust side 31 of the cylinder head and also the turbocharger 18 (branch 16, 17) is connected directly to thedemittepumpenaustritt.
- the outlet housing 28, however, is exemplified as a separate component, but may still have an EGR valve with corresponding lines to supply the EGR cooler.
- the block thermostat 14 can remain closed longer, since possibly forming vapor bubbles from the cylinder block or its upper portion in the cylinder head or in the inlet-side cooling region 7 can be derived.
- a warm-up behavior of the internal combustion engine is decidedly improved because the block thermostat 14 must be opened only when an exchange of the coolant in the cylinder block side coolant area 3 or in the water jacket is actually required.
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- 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)
Claims (6)
- Moteur à combustion interne, qui présente un circuit d'agent de refroidissement (2), qui est divisé en une région d'agent de refroidissement côté bloc-cylindres (3) et une région d'agent de refroidissement côté culasse (4), dans lequel la région d'agent de refroidissement côté bloc-cylindres présente au moins un thermostat de bloc (14), dans lequel la région d'agent de refroidissement côté culasse (4) présente une région de refroidissement côté sortie (6) et une région de refroidissement côté entrée (7), dans lequel un agent de refroidissement peut être conduit de la région de refroidissement côté entrée (7) dans un boîtier de sortie (28) dans lequel la région de refroidissement côté sortie (6) débouche, et dans lequel au moins un branchement (17) est disposé avant le thermostat de bloc (14) et conduit un premier courant partiel en direction de la région de refroidissement côté sortie (6) de la région d'agent de refroidissement côté culasse (4), dans lequel ledit au moins un branchement (17) est raccordé directement à la sortie de la pompe d'agent de refroidissement, dans lequel la région d'agent de refroidissement côté bloc-cylindres (3) est en communication à travers un joint de culasse (5) avec la région de refroidissement côté entrée (7), dans lequel le boîtier de sortie (28) présente un élément de commande (22),
caractérisé en ce qu'une sortie de la pompe d'agent de refroidissement est raccordée à la région d'agent de refroidissement côté bloc-cylindres (3) par l'intermédiaire du thermostat de bloc (14), dans lequel le courant d'agent de refroidissement s'écoulant dans la région d'agent de refroidissement côté bloc-cylindres (3) à travers le thermostat de bloc (14) s'écoule à travers la région d'agent de refroidissement côté bloc-cylindres (3) et entre à partir d'ici dans la région de refroidissement côté entrée (7) de la région d'agent de refroidissement côté culasse (4), et dans lequel les courants d'agent de refroidissement s'écoulant de la région de refroidissement côté sortie et côté entrée (6 et 7) dans le boîtier de sortie (28) se mélangent dans le boîtier de sortie (28), avant l'élément de commande (22) dans la direction d'écoulement, dans lequel les deux courants d'agent de refroidissement pénétrant dans le boîtier de sortie (28) ne sont pas en contact avant leur mélange. - Moteur à combustion interne selon la revendication 1, caractérisé en ce que le thermostat de bloc (14) commande le courant d'agent de refroidissement à travers la région d'agent de refroidissement côté bloc-cylindres (3).
- Moteur à combustion interne selon la revendication 1 ou 2, caractérisé en ce que le thermostat de bloc (14) est intégré dans le bloc-cylindres, ou en ce que le thermostat de bloc (14) est constitué par un composant séparé.
- Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que deux branchements (16, 17) sont disposés avant le thermostat de bloc (14), parmi lesquels le branchement (16) est en communication avec un turbocompresseur (18), dans lequel les deux branchements (16, 17) sont raccordés à la sortie de la pompe d'agent de refroidissement.
- Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que le boîtier de sortie (28) est réalisé sous forme de boîtier séparé, dans lequel l'agent de refroidissement sortant provenant de la région de refroidissement côté entrée (7) et l'agent de refroidissement sortant provenant de la région de refroidissement côté sortie (6) sont mélangés avant l'élément de commande (22).
- Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de commande (22) est réalisé sous forme de thermostat (22), de préférence sous forme de thermostat à commande électrique (22).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09166864.0A EP2309106B1 (fr) | 2009-07-30 | 2009-07-30 | circuit de refroidissement |
US12/846,339 US8061309B2 (en) | 2009-07-30 | 2010-07-29 | Cooling system |
CN2010202788331U CN201802469U (zh) | 2009-07-30 | 2010-07-30 | 冷却系统 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09166864.0A EP2309106B1 (fr) | 2009-07-30 | 2009-07-30 | circuit de refroidissement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2309106A1 EP2309106A1 (fr) | 2011-04-13 |
EP2309106B1 true EP2309106B1 (fr) | 2017-06-07 |
Family
ID=41800590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09166864.0A Active EP2309106B1 (fr) | 2009-07-30 | 2009-07-30 | circuit de refroidissement |
Country Status (3)
Country | Link |
---|---|
US (1) | US8061309B2 (fr) |
EP (1) | EP2309106B1 (fr) |
CN (1) | CN201802469U (fr) |
Cited By (1)
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DE102021111729A1 (de) | 2020-05-05 | 2021-11-11 | Kirpart Otomoti̇v Parçalari Sanayi̇ Ve Ti̇caret A.Ş. | Eine ventilstruktur zur erfassung der thermostatauslasstemperatur des thermo-elements und eine bezügli̇che thermostatanordnung |
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DE102016214226A1 (de) | 2016-08-02 | 2018-02-08 | Ford Global Technologies, Llc | Zylinderblock für einen mehrzylindrigen Verbrennungsmotor |
DE102016214224B4 (de) | 2016-08-02 | 2021-05-20 | Ford Global Technologies, Llc | Zylinderblock für einen mehrzylindrigen Verbrennungsmotor |
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EP1698770B1 (fr) | 2005-03-04 | 2014-06-18 | Ford Global Technologies, LLC | Système de refroidissement de culasse avec partition |
DE102005033338A1 (de) | 2005-07-16 | 2007-01-25 | Daimlerchrysler Ag | Brennkraftmaschine und Verfahren zum Kühlen einer Brennkraftmaschine |
FR2905423B1 (fr) * | 2006-09-06 | 2008-10-10 | Peugeot Citroen Automobiles Sa | Dispositif de distribution de liquide de refroidissement dans un moteur de vehicule automobile |
JP4372799B2 (ja) * | 2007-02-19 | 2009-11-25 | トヨタ自動車株式会社 | 内燃機関の制御システム |
-
2009
- 2009-07-30 EP EP09166864.0A patent/EP2309106B1/fr active Active
-
2010
- 2010-07-29 US US12/846,339 patent/US8061309B2/en active Active
- 2010-07-30 CN CN2010202788331U patent/CN201802469U/zh not_active Expired - Lifetime
Non-Patent Citations (1)
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None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021111729A1 (de) | 2020-05-05 | 2021-11-11 | Kirpart Otomoti̇v Parçalari Sanayi̇ Ve Ti̇caret A.Ş. | Eine ventilstruktur zur erfassung der thermostatauslasstemperatur des thermo-elements und eine bezügli̇che thermostatanordnung |
Also Published As
Publication number | Publication date |
---|---|
US8061309B2 (en) | 2011-11-22 |
CN201802469U (zh) | 2011-04-20 |
US20110023797A1 (en) | 2011-02-03 |
EP2309106A1 (fr) | 2011-04-13 |
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