EP2615273A1 - Système de refroidissement pour moteur - Google Patents

Système de refroidissement pour moteur Download PDF

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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Withdrawn
Application number
EP12150700.8A
Other languages
German (de)
English (en)
Inventor
Bengt Salekärr
Stefan Sundemo
John Nilsson
Peter Holmblad
Kaj Johansson
Ulf Jonason
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Car Corp
Original Assignee
Volvo Car Corp
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 Car Corp filed Critical Volvo Car Corp
Priority to EP12150700.8A priority Critical patent/EP2615273A1/fr
Publication of EP2615273A1 publication Critical patent/EP2615273A1/fr
Withdrawn legal-status Critical Current

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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)
EP12150700.8A 2012-01-11 2012-01-11 Système de refroidissement pour moteur Withdrawn EP2615273A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12150700.8A EP2615273A1 (fr) 2012-01-11 2012-01-11 Système de refroidissement pour moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12150700.8A EP2615273A1 (fr) 2012-01-11 2012-01-11 Système de refroidissement pour moteur

Publications (1)

Publication Number Publication Date
EP2615273A1 true EP2615273A1 (fr) 2013-07-17

Family

ID=45495766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12150700.8A Withdrawn EP2615273A1 (fr) 2012-01-11 2012-01-11 Système de refroidissement pour moteur

Country Status (1)

Country Link
EP (1) EP2615273A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301274A1 (fr) * 2016-09-30 2018-04-04 Novares France Circuit de refroidissement pour un véhicule automobile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715259U (fr) * 1971-03-22 1972-10-23
EP0374038A1 (fr) * 1988-12-14 1990-06-20 Automobiles Peugeot Dispositif de refroidissement d'un moteur à combustion interne
US5111776A (en) * 1989-09-26 1992-05-12 Nippon Soken, Inc. Cooling system for an internal combustion engine
JPH0719043A (ja) * 1993-06-30 1995-01-20 Kubota Corp 水冷エンジンの冷却水路のエアー抜き装置
JP2005315116A (ja) * 2004-04-27 2005-11-10 Toyota Motor Corp 冷却液流路の空気抜き構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715259U (fr) * 1971-03-22 1972-10-23
EP0374038A1 (fr) * 1988-12-14 1990-06-20 Automobiles Peugeot Dispositif de refroidissement d'un moteur à combustion interne
US5111776A (en) * 1989-09-26 1992-05-12 Nippon Soken, Inc. Cooling system for an internal combustion engine
JPH0719043A (ja) * 1993-06-30 1995-01-20 Kubota Corp 水冷エンジンの冷却水路のエアー抜き装置
JP2005315116A (ja) * 2004-04-27 2005-11-10 Toyota Motor Corp 冷却液流路の空気抜き構造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301274A1 (fr) * 2016-09-30 2018-04-04 Novares France Circuit de refroidissement pour un véhicule automobile
FR3057024A1 (fr) * 2016-09-30 2018-04-06 Novares France Circuit de refroidissement pour un vehicule automobile

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