EP1960646A1 - Kühlsystem - Google Patents
KühlsystemInfo
- Publication number
- EP1960646A1 EP1960646A1 EP06824472A EP06824472A EP1960646A1 EP 1960646 A1 EP1960646 A1 EP 1960646A1 EP 06824472 A EP06824472 A EP 06824472A EP 06824472 A EP06824472 A EP 06824472A EP 1960646 A1 EP1960646 A1 EP 1960646A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- engine
- cooling system
- deaeration
- expansion vessel
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000002826 coolant Substances 0.000 claims abstract description 65
- 238000005086 pumping Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001955 cumulated effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/028—Deaeration devices
Definitions
- the present invention relates to a cooling system for an engine.
- the system comprises a main radiator, at least one coolant pump, an expansion vessel, and at least one
- deaeration conduit connecting at least one high point of the cooling system and the expansion vessel.
- the higher coolant temperature is however not only
- a side effect of the higher coolant temperature is that the life of the expansion vessel is significantly reduced.
- One way of improving the life is to manufacture the expansion vessel of a more temperature durable
- the present invention solves the abovementioned problems by providing at least one secondary heat exchanger for cooling coolant flowing through said at least one deaeration conduit .
- the at least one secondary heat exchanger is an elongate pipe or hose placed in a stream of air. This embodiment is advantageous in that it is uncomplicated and inexpensive.
- elongate pipe or hose is provided with area increasing means. This allows for a shorter pipe or hose.
- the secondary heat exchanger is a coolant/coolant heat exchanger exchanging heat between a cold coolant and the coolant flowing through said at least one deaeration conduit.
- This embodiment could be useful if the vehicle is equipped with separate cooling circuits for engine and appliances, e.g. gearbox and/or charge cooler.
- Fig. 1 is a schematic view of a first embodiment of the present invention
- Fig. 2 is a schematic view of a second embodiment of the present invention.
- Fig. 1 shows a cooling system 100 according to the present invention, wherein the cooling system 100 is intended to cool an engine 150.
- the cooling system 100 comprises a main radiator 110, a bypass 115, a coolant pump 120, an
- expansion tank 130 provided with a filler cap 131, inlets 137, 138 and an outlet 139 situated at a bottom part of the expansion tank, a thermostat 140 and secondary heat
- the outlet 139 is connected to a point downstream the radiator 110 and upstream the coolant pump 120 by a conduit 180 (for definition of upstream and downstream, see next paragraph) .
- the cooling system 100 includes first and second drain cocks 160, 161 located at bottom portions of the main radiator 110 and an engine 150 to be cooled, respectively.
- the cooling system is connected to a gearbox cooler 170 and/or a brake compressor 175, i.e. the compressor for supplying the braking system of the vehicle with compressed air.
- a hosing and/or piping system which in Fig. 1 are shown as full lines provided with small arrows indicating a flow direction of a coolant flowing between the above mentioned components . Consequently, a side of a component facing a tip of a small arrow is an upstream side of the component, and a side of a component facing a base of the small arrow is a downstream side of said component.
- the hosing and/or piping system is only given reference numerals when a portion of the system is directly referred to, since the basic function of such a system is well known by persons skilled in the art.
- Two deaeration conduits 137', 138' connect high points in the cooling system 100 on the engine 150 and on the main radiator 110 to the inlets 137, 138 of the expansion vessel, via the secondary heat exchangers 145, 145' , respectively.
- the purpose of the cooling system is mainly to cool the engine by transferring heat from the engine 150 to the main radiator 110.
- the coolant pump 120 provides the flow of coolant, the
- the coolant absorbs heat, which increases the temperature of the coolant.
- the coolant passes the thermostat 140; if the coolant temperature is above a threshold value, e.g. 110 degrees centigrade, the thermostat directs the flow of coolant to the main radiator 110, where the hot coolant exchanges heat with ambient air. The heat exchange with the air results in a temperature drop of the coolant.
- the radiator the cold coolant is again fed to the coolant pump 120, from which it again enters the engine's coolant circuits CC.
- the coolant is directed by the thermostat 140 to the bypass 115, in order to let the coolant bypass the main radiator 110. Hence, the coolant experiences no significant temperature drop, which helps the coolant, and hence the engine, to reach an appropriate working temperature more rapidly. If the temperature is close to the threshold value, the thermostat might direct part of the coolant flow through the radiator, and allow the other part of the coolant flow to bypass the main radiator.
- the two deaerating conduits 137 ' , 138' are connecting a point close to the thermostat 140 and a point on the top area of the main radiator 110 to the inlets 137 and 138 of the expansion vessel 130, respectively.
- coolant will be forced to flow through the conduits 137', 138' to the expansion vessel 130 due to the coolant pressure drop over the main radiator 110 or the bypass 115.
- the coolant entering the expansion vessel will eventually re-enter the cooling flow scheme coolant pump 120 - engine 150 - thermostat 140 - main radiator 110. This re-entering takes place by the conduit 180 connecting the expansion vessel outlet 139 to a point downstream the main radiator 110 and upstream the coolant pump 120. Since the thermostat 140 and the main radiator 110
- the coolant flowing through the deaerating conduits may contain some gas, which e.g. might emanate from small leaks or simply from diffusion of combustion gas through the cast iron from which the engine is manufactured.
- the possible gas mixed in the coolant from the engine 150 and the main radiator 110 will raise towards the coolant surface, hence leaving a virtually gas free coolant to re-enter the cooling circuits CC of the engine 150.
- the coolant temperature is decreased by the provision of the secondary heat exchangers 145, 145', which as mentioned are placed in the deaeration conduits 137' , 138' .
- the secondary heat exchangers 145 and 145' are simply elongate pipes of a heat conducting material, e.g. any kind of metal, e.g. iron, steel, copper, aluminium, stainless steel or any other suitable metal.
- the pipes are placed in a stream of cold air, e.g. in front of the main radiator 110.
- these pipes are provided with area increasing means, e.g. circumferentially extending wings .
- the secondary heat exchangers might be coolant/coolant heat exchangers.
- This might be an advantageous solution if two separate cooling systems are used, e.g. one high temperature cooling system for cooling the engine and one low temperature cooling system for gearbox cooling. Separate cooling systems could also be used as a means for allowing a coolant/air heat exchanger as a charge cooler for engine intake air, compressed in the turbocharger, in a way that is well known by persons skilled in the art.
- the invention has been described with two separate secondary heat exchangers 145, 145'.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0502676A SE529541C2 (sv) | 2005-12-05 | 2005-12-05 | Kylsystem |
| PCT/SE2006/001332 WO2007067118A1 (en) | 2005-12-05 | 2006-11-24 | A cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1960646A1 true EP1960646A1 (de) | 2008-08-27 |
Family
ID=38123157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06824472A Withdrawn EP1960646A1 (de) | 2005-12-05 | 2006-11-24 | Kühlsystem |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090250019A1 (de) |
| EP (1) | EP1960646A1 (de) |
| CN (1) | CN101321938B (de) |
| BR (1) | BRPI0619426A2 (de) |
| SE (1) | SE529541C2 (de) |
| WO (1) | WO2007067118A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT508486A3 (de) * | 2009-06-30 | 2011-11-15 | Vaillant Group Austria Gmbh | Vorrichtung zur reduzierung der kühlmittelverdunstungsmenge im kühlmittelkreislauf einer kraft-wärme-kopplungsanlage |
| CN102042073A (zh) * | 2011-01-28 | 2011-05-04 | 东风朝阳柴油机有限责任公司 | 带有自动排气功能的发动机冷却水系统装置 |
| US9121335B2 (en) * | 2011-05-13 | 2015-09-01 | Ford Global Technologies, Llc | System and method for an engine comprising a liquid cooling system and oil supply |
| CN102337956A (zh) * | 2011-08-30 | 2012-02-01 | 奇瑞汽车股份有限公司 | 一种双水室散热器结构 |
| DE112013003619T5 (de) * | 2012-08-20 | 2015-04-23 | Borgwarner Inc. | Wärme-Kaltstartsystem mit Multifunktionsventil |
| US20160059672A1 (en) * | 2014-08-26 | 2016-03-03 | CNH Industrial America, LLC | Cooling system for a work vehicle |
| US10378429B2 (en) * | 2015-10-28 | 2019-08-13 | Hyundai Motor Company | Hybrid intercooler system and control method thereof |
| WO2018164285A1 (ja) * | 2018-03-28 | 2018-09-13 | 株式会社小松製作所 | エンジン冷却装置、及びエンジンシステム |
| US11808183B2 (en) * | 2020-05-18 | 2023-11-07 | Innio Waukesha Gas Engines Inc. | System and method for extending oil life in an engine |
| CN112459889A (zh) * | 2020-11-25 | 2021-03-09 | 东风汽车集团有限公司 | 发动机冷却系统及其控制方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2597061A (en) * | 1949-02-12 | 1952-05-20 | Burich John | Automatic cooling system |
| DE2058995B2 (de) * | 1970-12-01 | 1973-08-09 | Vorrichtung zum entlueften der kuehlfluessigkeit einer brennkraftmaschine | |
| US4006775A (en) * | 1974-03-07 | 1977-02-08 | Avrea Walter C | Automatic positive anti-aeration system for engine cooling system |
| FR2482906A1 (fr) * | 1980-05-20 | 1981-11-27 | Ferodo Sa | Perfectionnements aux systemes de refroidissement de moteurs de vehicules a radiateur associe a un vase d'expansion |
| DE3226508C2 (de) * | 1982-07-15 | 1985-12-12 | Bayerische Motoren Werke AG, 8000 München | Kühlkreis für Brennkraftmaschinen |
| CN1004502B (zh) * | 1985-05-31 | 1989-06-14 | 琼·W·埃文斯 | 冷却内燃机的方法及其装置 |
| DE3716555A1 (de) * | 1987-05-18 | 1988-12-08 | Bayerische Motoren Werke Ag | Befuell-, entlueftungs- und drucksteuer-vorrichtung fuer den fluessigkeits-kuehlkreis von kraft- und arbeitsmaschinen, insbesondere brennkraftmaschinen |
| JP2950553B2 (ja) * | 1989-09-26 | 1999-09-20 | 株式会社日本自動車部品総合研究所 | 内燃機関の冷却装置 |
| FR2684721A1 (fr) * | 1991-12-06 | 1993-06-11 | Valeo Thermique Moteur Sa | Procede et dispositif de refroidissement d'un moteur thermique a charge fortement variable. |
| FR2688449B1 (fr) * | 1992-03-16 | 1994-06-17 | Peugeot | Circuit de liquide pour echangeur de chaleur associe a un moteur de vehicule automobile. |
| US5385123A (en) * | 1993-10-08 | 1995-01-31 | Evans; John W. | Segregated cooling chambers for aqueous reverse-flow engine cooling systems |
| DE19538239C1 (de) * | 1995-10-13 | 1997-04-24 | Daimler Benz Ag | Kühlmittelführung in einem Kühlkreislauf einer flüssigkeitsgekühlten Brennkraftmaschine |
| SE521618C2 (sv) * | 1998-07-31 | 2003-11-18 | Volvo Lastvagnar Ab | Förfarande och anordning för avluftning av ett kylvätskesystem till en förbränningsmotor |
| SE521602C2 (sv) * | 1998-07-31 | 2003-11-18 | Volvo Lastvagnar Ab | Anordning vid kylsystem |
| US5970928A (en) * | 1998-10-28 | 1999-10-26 | Navistar International Transportation Corp | Self restricting engine cooling system deaeration line |
| US6216646B1 (en) * | 1999-12-23 | 2001-04-17 | Daimlerchrysler Corporation | Deaeration bottle for liquid cooling systems for automotive vehicle engines |
-
2005
- 2005-12-05 SE SE0502676A patent/SE529541C2/sv not_active IP Right Cessation
-
2006
- 2006-11-24 BR BRPI0619426-5A patent/BRPI0619426A2/pt not_active IP Right Cessation
- 2006-11-24 WO PCT/SE2006/001332 patent/WO2007067118A1/en active Application Filing
- 2006-11-24 US US12/095,202 patent/US20090250019A1/en not_active Abandoned
- 2006-11-24 EP EP06824472A patent/EP1960646A1/de not_active Withdrawn
- 2006-11-24 CN CN2006800456605A patent/CN101321938B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007067118A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090250019A1 (en) | 2009-10-08 |
| BRPI0619426A2 (pt) | 2011-10-04 |
| WO2007067118A1 (en) | 2007-06-14 |
| SE529541C2 (sv) | 2007-09-11 |
| CN101321938A (zh) | 2008-12-10 |
| SE0502676L (sv) | 2007-06-06 |
| CN101321938B (zh) | 2010-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20080707 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120601 |