WO2011099899A1 - Procédé de remplissage d'un système de refroidissement pour un moteur à combustion interne - Google Patents

Procédé de remplissage d'un système de refroidissement pour un moteur à combustion interne Download PDF

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Publication number
WO2011099899A1
WO2011099899A1 PCT/SE2010/000031 SE2010000031W WO2011099899A1 WO 2011099899 A1 WO2011099899 A1 WO 2011099899A1 SE 2010000031 W SE2010000031 W SE 2010000031W WO 2011099899 A1 WO2011099899 A1 WO 2011099899A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid coolant
pump
expansion tank
filling
pipe
Prior art date
Application number
PCT/SE2010/000031
Other languages
English (en)
Inventor
Gunnar Theorell
Original Assignee
Volvo Lastvagnar Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Volvo Lastvagnar Ab filed Critical Volvo Lastvagnar Ab
Priority to PCT/SE2010/000031 priority Critical patent/WO2011099899A1/fr
Publication of WO2011099899A1 publication Critical patent/WO2011099899A1/fr

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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
    • F01P11/0204—Filling

Definitions

  • the invention relates to a method for filling a coolant system for an internal combustion engine according to the preamble of the independent claim.
  • cooling/heating devices on trailers, semi-trailers or containers connectable to a truck may also be problematic to vent. Depending on the make and model of the automobile this procedure can take more or less time since the engine has to be warm for the thermostat to open up and thereby allowing trapped air in the coolers to escape through the bled off valve.
  • Air in the system can due to formation of steam expand when heated and blow the hoses or otherwise weaken the hoses thereby shortening the lifespan of the cooling system of the vehicle. Air in the cooling system may also cause the water to be trapped in the water channels of the engine, which may in the end may result in an overheated engine and total engine damage. Trapped air in the cooling system may be drawn with the flow of coolant and mixed with said coolant. Small air bubbles may be created which may take a substantial time to vent out from the cooling system. Refilling may most often be necessary, which in some cases have to be done after a vehicle has left the repairshop which is a problem.
  • a method for filling a coolant system 100 of an internal combustion engine 1 with liquid coolant comprising said internal combustion engine, a radiator 2, an expansion tank 3 and a heat exchanger 5.
  • Said method comprising the steps of: filling the coolant system with liquid coolant, removing air pockets by creating an underpressure in said coolant system by pumping out liquid coolant from the expansion tank to a reservoir tank, and compensating the removed air pockets and the pumped out liquid coolant from the expansion tank with liquid coolant.
  • An advantage with the present invention is that the method can easily be performed on any vehicle with small or no modifications to the existing cooling system for the internal combustion engine provided in said vehicle.
  • Fig. 1 depicts a cooling system for an internal combustion engine
  • Fig 2 depicts a cooling system for an internal combustion engine
  • Fig. 3 depicts a cooling system for an internal combustion engine
  • Fig. 4 depicts a cooling system for an internal combustion engine
  • Fig. 1 depicts schematically a cooling system 100 for an internal combustion engine 1 connectable to a first example embodiment of an apparatus 50 for filling/refilling said cooling system.
  • Said cooling system 100 comprises said internal combustion engine 1 , a radiator 2, an expansion tank 3, a compartment heat exchanger 5, a filling pipe 6, bleeding pipes 7.
  • the radiator 2 is connected to the internal combustion engine 1 via pressure hose 9 and a suction hose 8.
  • thermostat 27 to a bypass pipe 37. From said bypass pipe 37 said liquid coolant is then circulated to the pump 26 and further to the internal combustion engine 1. From the internal combustion engine 1 said liquid coolant is returned to the thermostat 27.
  • the thermostat 27 may also be in any position between fully closed and fully opened.
  • the compartment heat exchanger 5 is connected to the top of the internal combustion engine 1 via a first pipe 31 and to the suction hose via a second pipe 33. Liquid coolant is in this configuration passing the compartment heat exchanger 5 only when the thermostat 27 is open.
  • a drain plug for draining the radiator and internal combustion engine from liquid coolant.
  • Bleeding pipes 7 are arranged on top of the internal combustion engine 1 and on top of the radiator 2 connected to the expansion tank.
  • the expansion tank 3 may further be connected to the bottom of the radiator 2 or the inlet (suction side) of the liquid coolant pump via a filling pipe 6.
  • Said expansion tank is provided with a tight-fitting cap 22.
  • Said apparatus 50 for filling/refilling said cooling system 100 comprises a pump 4, a first pump pipe 21 , a second pump pipe 20 and a liquid vessel 10.
  • the pump is connectable to the expansion tank 3 via said first pump pipe 21.
  • the first pump pipe 21 may be inserted through the tight sealed cap 22 into said expansion tank 3.
  • the second pump pipe 20 may be connectable to the liquid vessel 10.
  • the cooling system 100 may be filled with liquid coolant by providing said liquid coolant into the expansion tank 3. Liquid coolant is transported from the expansion tank 3 out into the cooling system 100 via filling pipe 6. Wile filling up the cooling system 100 with water said tight-fitting cap 22 may be removed. Enclosed air in the cooling system may be pressed out by the liquid coolant and may be led to the expansion tank 3 via the bleeding pipes 7 from the internal combustion engine 1 and the radiator 2. When the cooling system is filled with liquid coolant, some air pockets may still be left in the internal combustion engine 1 , the radiator 2, the compartment heat exchanger 5, EGR-coolers, retarder-cooler, gearbox-cooler, final drive-cooler etc.
  • Underpressure (below atmospheric pressure) may be created by pumping our liquid coolant from the expansion tank 3 when the tight sealing cap 22 is attached to said expansion tank 3.
  • the liquid coolant may be pumped out from the expansion tank 3 by the pump 4 delivering said pumped out liquid coolant to the liquid vessel 10 via the second pump pipe 20.
  • air pockets may be removed from the internal combustion engine 1 , the radiator 2 and the compartment heat exchanger 5.
  • the removed air from said regions is replaced with liquid coolant which is provided into the cooling system through the expansion tank.
  • the provision of liquid coolant at this stage may be performed by reversing the pump 4 and pumping liquid coolant from the liquid vessel 0 via the second pump pipe 20 to the pump 4 and then further to the expansion tank via the first pump pipe 21.
  • Liquid coolant may also at this stage be provided to the expansion tank 3 by removing the tight sealing cap 22 and pouring water into the expansion tank 3 in a traditional manner.
  • FIG. 2 illustrates an alternative example embodiment of an apparatus 50 for filling/refilling said cooling system 100.
  • Said apparatus 50 comprises in addition to the apparatus illustrated in figure 1 a bypass pump pipe 39 connected between the bottom of the liquid vessel 10 and the first pump pipe 21 at a position above the tight seal cap 22.
  • Said bypass pump pipe 39 comprises a valve 29.
  • When starting to pump out liquid coolant from the expansion tank said valve 29 is open.
  • said pump 4 pumps out liquid coolant from the expansion tank said valve is successively closed, i.e., the operation of valve 29 may start from an open position when said pump 4 starts to pump and the closing event takes a predetermined time. With this procedure one can accomplish a slow venting with normal speed of the pump 4. Air is transported in the liquid coolant system to the expansion tank before the liquid coolant hoses are squeezed together because of the
  • FIG 3 illustrates yet an alternative example embodiment of an apparatus 50 for filling/refilling said cooling system 100.
  • Said apparatus 50 comprises in addition to the apparatus illustrated in figure 1 an expansion tank bleed pipe 41 , a second pump 12, a pressure pipe 24, a suction pipe 23, a first valve 16, a second valve 15, a third valve 14, drain pipe 43.
  • the expansion tank bleed pipe 41 is connectable between the expansion tank 3 through its tight seal cap 22 and the second pump pipe 20.
  • Said tank bleed pipe 41 comprises a valve 16.
  • the first pump pipe 21 is extending all the way the bottom of the expansion tank 3 while the expansion tank bleed pipe 41 is only extending a short distance into the expansion tank 3. The reason for this difference is because the first pump pipe 21 is supposed to remove liquid from the expansion tank 3, while the expansion tank bleed pipe 41 is supposed to bleed air from the expansion tank 3.
  • the second pump pipe 20 is connectable to the liquid vessel 10.
  • the second pump 12 is connectable to the bottom of the radiator 2 to a radiator drain valve 13 via the pressure pipe 24.
  • Said pressure pipe comprises a second valve 15.
  • the suction pipe 23 is connectable between the pump 2 and the liquid in the vessel 10.
  • the drain pipe 43 is connected to the pressure pipe 24 and an open end of said drain pipe 43 is directed to the vessel 10.
  • Said drain pipe 43 comprises a third valve 14.
  • FIG. 4 illustrates still another example embodiment of an apparatus 50 for filling/refilling said cooling system 100.
  • Said apparatus 50 comprises in addition to the apparatus illustrated in figure 1 a non return valve 19, an expansion tank suction pipe 21 , a first three way valve 18, a second three way valve 25, a pressure pipe 24, a suction pipe 23, a third valve 14, and a drain pipe 43.
  • Said non return valve 19 is provided in the second pump pipe 20.
  • the expansion tank suction pipe 21 is provided between the expansion tank 3 and the second three way valve 25.
  • the second pump pipe 20 is connectable to the expansion tank 3 through the tight seal cap 22 and directed to the vessel 10.
  • Said second pump pipe 20 is also connected to the first three way valve 8 via a three way valve pipe 55.
  • the pump 4 is connectable to the drain valve 13 in the bottom of the radiator 2 via the pressure pipe 24 comprising the first three way valve 18.
  • Said pump 4 is also connectable to the vessel 0 via the suction pipe 23 which comprises the second three way valve 25.
  • the drain pipe 43 is connected between the drain valve 13 and the first three way valve 8 to said pressure pipe 24. The other free end of said drain pipe 43 is directed to the vessel 10.
  • Said drain pipe 43 comprises a third valve 14.
  • said tight sealed cap 22 may be loose or alternatively there may be a bleeding screw provided on for example said cap for allowing air to be sucked into the cooling system when the third valve 14 and the drain valve 13 are opened up. While draining the system said pump 4 is off.
  • the second three way valve 25 is in an open position between suction pipe 21 and the pump 4, and closed between the pump 4 and expansion tank suction pipe 21.
  • the first three way valve 18 is in an open position between the pressure pipe 24 and the drain valve 13, and closed between the pressure pipe 24 and the pump pipe 20.
  • the drain valve 13 is in an open position when filling the cooling system 100. .
  • the pump 4 When starting to pump out liquid coolant from the expansion tank 3 said pump 4 is on and the second three way valve 25 is open between the pump 4 and the suction pipe 23, and closed between the pump 4 and the suction pipe 23.
  • the first three way valve 18 is open between the pressure pipe 24 and the pump pipe 20, and closed between the pressure pipe 24 and the drain valve 13.
  • the drain valve 13 may be open to valve 17 during this phase since the first three way valve 18is closed between the pump 4 and said drain valve 13.
  • the third valve 14 is initially opened and is successively closed while the liquid is started to be pumped out from the expansion tank 3.
  • Said pump 4 may be an air pressure driven or electrical membrane pump, an impeller pump or similar pumps available on the market for pumping liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

L'invention concerne un procédé de remplissage d'un système de refroidissement 100 pour un moteur à combustion interne 1 avec du liquide de refroidissement, ledit système de refroidissement comprenant ledit moteur à combustion interne, un radiateur 2, un réservoir d'expansion 3 et un échangeur thermique 5, ledit procédé comprenant les étapes consistant à remplir le système de refroidissement de liquide de refroidissement, éliminer les poches d'air en créant une sous-pression dans ledit système de refroidissement en pompant du liquide de refroidissement du réservoir d'expansion vers un réservoir de réserve, compenser avec du liquide de refroidissement les poches d'air éliminées et le liquide de refroidissement pompé du réservoir d'expansion.
PCT/SE2010/000031 2010-02-11 2010-02-11 Procédé de remplissage d'un système de refroidissement pour un moteur à combustion interne WO2011099899A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SE2010/000031 WO2011099899A1 (fr) 2010-02-11 2010-02-11 Procédé de remplissage d'un système de refroidissement pour un moteur à combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2010/000031 WO2011099899A1 (fr) 2010-02-11 2010-02-11 Procédé de remplissage d'un système de refroidissement pour un moteur à combustion interne

Publications (1)

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WO2011099899A1 true WO2011099899A1 (fr) 2011-08-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017003777A1 (de) 2016-04-26 2017-10-26 Scania Cv Ab Anordnung und Verfahren zum Befüllen einer Kühlanlage in einem Fahrzeug
WO2017212134A1 (fr) 2016-06-07 2017-12-14 Psa Automobiles S.A. Procede de remplissage en fluide caloporteur d'un circuit de refroidissement
DE102018207384A1 (de) 2018-05-14 2018-07-05 Carl Zeiss Smt Gmbh Verfahren zum Vermessen eines Beleuchtungssystems einer Projektionsbelichtungsanlage für die Mikrolithographie
WO2020103987A1 (fr) * 2018-11-20 2020-05-28 Vestas Wind Systems A/S Système de refroidissement d'éolienne

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1476811A (en) * 1974-01-10 1977-06-16 Sihi Gmbh & Co Kg Method and apparatus for charging fluid circuits
DE2660122C2 (de) * 1976-10-23 1983-01-05 Sihi Gmbh & Co Kg, 2210 Itzehoe Vorrichtung zum Füllen eines geschlossenen Hohlsystems mit Flüssigkeit
EP0652406A1 (fr) * 1993-11-04 1995-05-10 Spiro Research B.V. Méthode et appareil pour dégarer un liquide dans un système de circulation de liquide pratiquement fermée
US5615716A (en) * 1994-12-15 1997-04-01 Akazawa; Yasumasa Engine coolant changing apparatus
US20010010237A1 (en) * 1999-02-12 2001-08-02 Klamm Thomas L. Apparatus and method for filling a motor vehicle cooling system with coolant
US20050166991A1 (en) * 2004-02-02 2005-08-04 Adam Awad Methods for replacing engine system cooling fluids with a continuous flow
JP2006070850A (ja) * 2004-09-03 2006-03-16 Daihatsu Motor Co Ltd ラジエター冷却液注入方法およびラジエター冷却液注入アダプタ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1476811A (en) * 1974-01-10 1977-06-16 Sihi Gmbh & Co Kg Method and apparatus for charging fluid circuits
DE2660122C2 (de) * 1976-10-23 1983-01-05 Sihi Gmbh & Co Kg, 2210 Itzehoe Vorrichtung zum Füllen eines geschlossenen Hohlsystems mit Flüssigkeit
EP0652406A1 (fr) * 1993-11-04 1995-05-10 Spiro Research B.V. Méthode et appareil pour dégarer un liquide dans un système de circulation de liquide pratiquement fermée
US5615716A (en) * 1994-12-15 1997-04-01 Akazawa; Yasumasa Engine coolant changing apparatus
US20010010237A1 (en) * 1999-02-12 2001-08-02 Klamm Thomas L. Apparatus and method for filling a motor vehicle cooling system with coolant
US20050166991A1 (en) * 2004-02-02 2005-08-04 Adam Awad Methods for replacing engine system cooling fluids with a continuous flow
JP2006070850A (ja) * 2004-09-03 2006-03-16 Daihatsu Motor Co Ltd ラジエター冷却液注入方法およびラジエター冷却液注入アダプタ

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017003777A1 (de) 2016-04-26 2017-10-26 Scania Cv Ab Anordnung und Verfahren zum Befüllen einer Kühlanlage in einem Fahrzeug
WO2017212134A1 (fr) 2016-06-07 2017-12-14 Psa Automobiles S.A. Procede de remplissage en fluide caloporteur d'un circuit de refroidissement
DE102018207384A1 (de) 2018-05-14 2018-07-05 Carl Zeiss Smt Gmbh Verfahren zum Vermessen eines Beleuchtungssystems einer Projektionsbelichtungsanlage für die Mikrolithographie
WO2020103987A1 (fr) * 2018-11-20 2020-05-28 Vestas Wind Systems A/S Système de refroidissement d'éolienne
US11885309B2 (en) 2018-11-20 2024-01-30 Vestas Wind Systems A/S Wind turbine cooling system

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