EP2615273A1 - Cooling system for an engine - Google Patents
Cooling system for an engine Download PDFInfo
- Publication number
- EP2615273A1 EP2615273A1 EP12150700.8A EP12150700A EP2615273A1 EP 2615273 A1 EP2615273 A1 EP 2615273A1 EP 12150700 A EP12150700 A EP 12150700A EP 2615273 A1 EP2615273 A1 EP 2615273A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling system
- mesh
- degas unit
- system circuit
- coolant
- 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- Withdrawn
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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
- F01P11/0285—Venting devices
Definitions
- the present invention relates to a degas unit for a cooling system circuit in a vehicle engine, the cooling system circuit comprising an expansion tank, a water pump and a radiator, wherein the degas unit has a housing with an inlet and an outset.
- the invention also relates to a cooling system circuit comprising a degas unit.
- Friction from a vehicle engine's operation results in extremely high temperatures.
- automakers install cooling systems in automobiles.
- the cooling system technology needed to adapt to the demands of these new engines.
- some car-manufacturing companies created new cooling component.
- a clear example of such is the expansion tank.
- An expansion tank is a container that provides extra storage space for the expansion of a coolant, a fluid used to dissipate heat.
- An expansion tank hose ensures the optimum flow of coolant as it connects the vehicle's radiator with an expansion tank.
- An expansion tank is sometimes called coolant reservoir or overflow canister.
- the expansion tank also makes the cooling system more efficient by eliminating the air bubbles from the coolant. Coolant without air bubbles absorbs heat much faster. When the engine is sufficiently cooled, a vacuum in the cooling system sucks back the coolant through the expansion tank hose. A properly functioning cooling system does not lose any coolant as the tank hose completes it as a virtually closed system. Even if the level of coolant in the expansion tank rises and falls, the radiator remains full all the time.
- the object of the present invention is to provide a cooling system which decreases the amount of coolant that needs to be used and thus heated.
- a degas unit for a cooling system circuit in a vehicle engine comprising an expansion tank, a water pump and a radiator.
- the degas unit has a housing with an inlet and an outlet.
- the degas unit further comprises a mesh arranged in said housing between the inlet and the outlet allowing for gas to pass through. By having a mesh, most of the gas in the coolant will flow through the mesh whilst most of the coolant or at least a reduced amount of coolant will flow through the degas unit.
- the mesh comprises a fluoropolymer.
- An example is expanded polytetrafluoroethylene.
- the cross section area of the mesh is larger than the cross section area of the inlet.
- a larger area serves to provide for better degassing, i.e. the gas in the coolant will have a larger contact surface and thus simplify the passing of the gas through the mesh.
- the mesh might function as a particle fitter if particles are present in the coolant.
- the housing comprises two parts. The idea is that the housing could be possible to open in order to replace the mesh or simply to clean the mesh.
- a cooling system circuit with a degas unit according to the above the outlet is connected to the expansion tank in the circuit.
- the outlet is connected to the expansion tank in the circuit.
- the outlet comprises an opening to the ambient air. If no coolant flow rate is desired the mesh could be chosen such that only air/gas can pass through.
- figure 1 is a principal sketch of a degas unit according to the present invention in connection with a cooling system circuit.
- FIG. 1 showy a degas unit 1 for a cooling system circuit in a vehicle engine.
- the cooling system circuit comprises an expansion tan, a water pump and a radiator (not shown).
- the degas unit 1 has a housing 2 with an inlet 3 and an outlet 4.
- the degas unit 1 further comprises a mesh 5 arranged in said housing 2 between the inlet 3 and the outlet 4 allowing for gas to pass through.
- the cross section area of the mesh 5 is larger than the cross section area of the inlet 3.
- the housing is one single unit, i.e. upon the event that the mesh 5 is clogged with particles the whole unit 1 needs to be replaced.
- the inlet 3 of the degas unit 1 is connected to a part 6 of a cooling circuit.
- the outlet 4 is connected to the expansion tank or degas bottle via a bleeder hose 7.
- the housing could be made up of two parts. The two parts could for example be screwed together and thereby allowing for disassembling and maintenance.
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)
Abstract
A degas unit (1) for a cooling system circuit in a vehicle engine, the cooling system circuit comprising an expansion tank, a water pump and a radiator, has a housing (2) with an inlet (3) and an outlet (4). The degas unit (1) further comprises a mesh (5) arranged in said housing (2) between the inlet (3) and the outlet (4) allowing for gas to pass through.
Description
- The present invention relates to a degas unit for a cooling system circuit in a vehicle engine, the cooling system circuit comprising an expansion tank, a water pump and a radiator, wherein the degas unit has a housing with an inlet and an outset. The invention also relates to a cooling system circuit comprising a degas unit.
- Friction from a vehicle engine's operation results in extremely high temperatures. To avoid the overheating of engines, automakers install cooling systems in automobiles. As larger and more powerful engines are getting manufactured, however, the cooling system technology needed to adapt to the demands of these new engines. In turn, some car-manufacturing companies created new cooling component. A clear example of such is the expansion tank.
- An expansion tank is a container that provides extra storage space for the expansion of a coolant, a fluid used to dissipate heat. An expansion tank hose ensures the optimum flow of coolant as it connects the vehicle's radiator with an expansion tank. An expansion tank is sometimes called coolant reservoir or overflow canister.
- When engines heat up, the coolant consequently expands. Without the expansion tank, however, the coolant will just flow out of the cooling system and get displaced to the ground. Expansion tank hoses are crucial in engine cooling systems. Without these components, coolant is not delivered to overflow canisters and cooling systems become very ineffective.
- Aside from containing the coolant that has expanded with heat, the expansion tank also makes the cooling system more efficient by eliminating the air bubbles from the coolant. Coolant without air bubbles absorbs heat much faster. When the engine is sufficiently cooled, a vacuum in the cooling system sucks back the coolant through the expansion tank hose. A properly functioning cooling system does not lose any coolant as the tank hose completes it as a virtually closed system. Even if the level of coolant in the expansion tank rises and falls, the radiator remains full all the time.
- However, initially when heating up an engine power is used to increase the temperature of the coolant.
- The object of the present invention is to provide a cooling system which decreases the amount of coolant that needs to be used and thus heated.
- A degas unit for a cooling system circuit in a vehicle engine is provided. The cooling system circuit comprising an expansion tank, a water pump and a radiator. The degas unit has a housing with an inlet and an outlet. The degas unit further comprises a mesh arranged in said housing between the inlet and the outlet allowing for gas to pass through. By having a mesh, most of the gas in the coolant will flow through the mesh whilst most of the coolant or at least a reduced amount of coolant will flow through the degas unit.
- According to one aspect of the present invention the mesh comprises a fluoropolymer. An example is expanded polytetrafluoroethylene. For some systems it might not be desirable to have a too tight a mesh, i.e. a small flow rate of coolant might be desirable.
- Preferably the cross section area of the mesh is larger than the cross section area of the inlet. A larger area serves to provide for better degassing, i.e. the gas in the coolant will have a larger contact surface and thus simplify the passing of the gas through the mesh.
- The mesh might function as a particle fitter if particles are present in the coolant. Thus, according to further aspect of the present invention the housing comprises two parts. The idea is that the housing could be possible to open in order to replace the mesh or simply to clean the mesh.
- According to one possible embodiment of a cooling system circuit with a degas unit according to the above the outlet is connected to the expansion tank in the circuit. For some cooling system circuit constructions it is necessary to have at least a small flow rate from the circuit to the expansion tank.
- According to another possible embodiment of a cooling system circuit with a degas unit according to the above the outlet comprises an opening to the ambient air. If no coolant flow rate is desired the mesh could be chosen such that only air/gas can pass through.
- The cooling system according to the present invention is explained below in more detail with reference to
figure 1 which is a principal sketch of a degas unit according to the present invention in connection with a cooling system circuit. - The cooling system according to the present invention will be explained with reference made to the enclosed figure. The example is chosen in order to facilitate the reading and understanding of the invention
- Figure showy a degas unit 1 for a cooling system circuit in a vehicle engine. The cooling system circuit comprises an expansion tan, a water pump and a radiator (not shown). The degas unit 1 has a
housing 2 with aninlet 3 and anoutlet 4. The degas unit 1 further comprises amesh 5 arranged in saidhousing 2 between theinlet 3 and theoutlet 4 allowing for gas to pass through. - As can be seen the cross section area of the
mesh 5 is larger than the cross section area of theinlet 3. In the embodiment shown the housing is one single unit, i.e. upon the event that themesh 5 is clogged with particles the whole unit 1 needs to be replaced. - The
inlet 3 of the degas unit 1 is connected to apart 6 of a cooling circuit. Theoutlet 4 is connected to the expansion tank or degas bottle via ableeder hose 7. - The foregoing is a disclosure of an example practicing the present invention. However, it is apparent that method incorporating modifications and variations will be obvious to one skilled in the art. Inasmuch as the foregoing disclosure is intended to enable one skilled in the art to practice the instant invention, it should not be construed to be limited thereby, but should be construed to include such modifications and variations as fall within the scope of the claims. For instance, the housing could be made up of two parts. The two parts could for example be screwed together and thereby allowing for disassembling and maintenance.
Claims (7)
- A degas unit (1) for a cooling system circuit in a vehicle engine, the cooling system circuit comprising an expansion tank, a water pump and a radiator, wherein the degas unit (1) has a housing (2) with an inlet (3) and an outlet (4),
characterised in
that the degas unit (1) further comprises a mesh (5) arranged in said housing (2) between the inlet (3) and the outlet (4) allowing for gas to pass through. - A degas unit (1) according to claim 1, wherein the mesh (5) comprises a ftuoropolymer.
- A degas unit (1) according to any of the preceding claims, wherein the cross section area of the mesh (5) is larger than the cross section area of the inlet (3).
- A degas unit (1) according to any of the preceding claims, wherein the housing (2) comprises two parts.
- A cooling system circuit comprising a degas unit (1) according to any of the previous claims.
- A cooling system circuit according to claim 5, wherein the outlet (4) is connected to the expansion tank.
- A cooling system circuit according to claim 5, wherein the outlet (4) comprises an opening to the ambient air,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12150700.8A EP2615273A1 (en) | 2012-01-11 | 2012-01-11 | Cooling system for an engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12150700.8A EP2615273A1 (en) | 2012-01-11 | 2012-01-11 | Cooling system for an engine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2615273A1 true EP2615273A1 (en) | 2013-07-17 |
Family
ID=45495766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12150700.8A Withdrawn EP2615273A1 (en) | 2012-01-11 | 2012-01-11 | Cooling system for an engine |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2615273A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3301274A1 (en) * | 2016-09-30 | 2018-04-04 | Novares France | Cooling circuit for a motor vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4715259U (en) * | 1971-03-22 | 1972-10-23 | ||
EP0374038A1 (en) * | 1988-12-14 | 1990-06-20 | Automobiles Peugeot | Cooling device for an internal-combustion engine |
US5111776A (en) * | 1989-09-26 | 1992-05-12 | Nippon Soken, Inc. | Cooling system for an internal combustion engine |
JPH0719043A (en) * | 1993-06-30 | 1995-01-20 | Kubota Corp | Air vent device for cooling water passage of water-cooled engine |
JP2005315116A (en) * | 2004-04-27 | 2005-11-10 | Toyota Motor Corp | Air vent structure of cooling liquid flow passage |
-
2012
- 2012-01-11 EP EP12150700.8A patent/EP2615273A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4715259U (en) * | 1971-03-22 | 1972-10-23 | ||
EP0374038A1 (en) * | 1988-12-14 | 1990-06-20 | Automobiles Peugeot | Cooling device for an internal-combustion engine |
US5111776A (en) * | 1989-09-26 | 1992-05-12 | Nippon Soken, Inc. | Cooling system for an internal combustion engine |
JPH0719043A (en) * | 1993-06-30 | 1995-01-20 | Kubota Corp | Air vent device for cooling water passage of water-cooled engine |
JP2005315116A (en) * | 2004-04-27 | 2005-11-10 | Toyota Motor Corp | Air vent structure of cooling liquid flow passage |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3301274A1 (en) * | 2016-09-30 | 2018-04-04 | Novares France | Cooling circuit for a motor vehicle |
FR3057024A1 (en) * | 2016-09-30 | 2018-04-06 | Novares France | COOLING CIRCUIT FOR A MOTOR VEHICLE |
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Effective date: 20140110 |