EP0441275A1 - Vase d'expansion pour le liquide de refroidissement des moteurs à combustion interne refroidi par liquide - Google Patents

Vase d'expansion pour le liquide de refroidissement des moteurs à combustion interne refroidi par liquide Download PDF

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Publication number
EP0441275A1
EP0441275A1 EP91101413A EP91101413A EP0441275A1 EP 0441275 A1 EP0441275 A1 EP 0441275A1 EP 91101413 A EP91101413 A EP 91101413A EP 91101413 A EP91101413 A EP 91101413A EP 0441275 A1 EP0441275 A1 EP 0441275A1
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EP
European Patent Office
Prior art keywords
expansion tank
ventilation
tank according
liquid
chamber
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Withdrawn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
EP91101413A
Other languages
German (de)
English (en)
Inventor
Johann Schmid
Anton Nothelfer
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.)
Iveco Magirus AG
Original Assignee
Iveco Magirus AG
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 Iveco Magirus AG filed Critical Iveco Magirus AG
Publication of EP0441275A1 publication Critical patent/EP0441275A1/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Withdrawn legal-status Critical Current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
    • F01P11/029—Expansion reservoirs

Definitions

  • the invention relates to an expansion tank for the coolant of liquid-cooled internal combustion engines, which is connected on its inflow side by at least two ventilation lines to the heat exchanger or cooler and the coolant jacket of the internal combustion engine.
  • the object of the invention is to provide an expansion tank of the type mentioned, which is simple and very compact and which uses simple means to achieve optimal air separation.
  • vent line has a vent inlet on or in the area of the top of the expansion tank, which itself has a ventilation hole which is connected to the upper inner air space of the expansion tank.
  • An advantageous development of the invention provides that a common ventilation inlet for the ventilation line of the heat exchanger and the ventilation line of the internal combustion engine is provided. Both of the aforementioned ventilation lines are brought together before the common ventilation inlet.
  • Another alternative embodiment of the invention is expediently characterized by separate ventilation inlets known from FR-A-2 388 133 for the ventilation line of the heat exchanger and the ventilation line of the internal combustion engine, a throttle point being provided at least in one ventilation inlet. If, according to an advantageous further development of the invention, the ventilation inlets open vertically from above into the expansion tank, the expansion tank can be designed uniformly for right-hand and left-hand drive vehicles.
  • an overflow plate which points essentially vertically upward from the chamber bottom and which is arranged downstream of the extension tube piece in the direction of flow of the liquid.
  • a particularly advantageous embodiment of the invention provides that a bubble formation protection or impact protection is arranged downstream of the overflow guide plate in the direction of flow of the liquid.
  • the impact protection is preferably a foam fabric insert which can be flowed through and which is attached to an inner chamber wall.
  • the overflow guide plate expediently has an upper rounding in the direction of the impact protection, and both the impact protection and the overflow guide plate extend over the entire width of the first chamber.
  • At least one second chamber is arranged downstream of the first container chamber in the direction of flow of the liquid, which is communicatively connected via a perforated chamber wall to a succeeding chamber of the expansion tank, the perforated chamber wall being a further foam-fluid insert that can be flowed through in the manner of the first foam-fabric insert is.
  • the expansion tank can be built with a comparatively "short" flow path, i.e. with comparatively few baffle plates and / or subchambers.
  • a compact expansion tank can be easily installed in a free space in the area of the internal combustion engine.
  • an expansion tank (20) for the cooling liquid of a liquid-cooled (not illustrated) internal combustion engine is provided.
  • the expansion tank has on its inflow side two (not shown) ventilation lines, which are connected to the (not shown) heat exchanger or cooler and the coolant jacket of the internal combustion engine.
  • the vent lines are assigned one or two vent inlets (1) according to FIG. 1 or FIG. 2, which open vertically from the top into the expansion tank (20).
  • the ventilation inlet (1) itself has a ventilation hole (3) which is in communication with the upper inner air space (5) of the expansion tank (20).
  • the embodiment variant of the ventilation inlet according to FIG. 2 has a throttle point (2) in the flow direction in front of the ventilation hole (3) and is therefore intended for smaller flow rates.
  • Such a ventilation inlet (1) is suitable for separately installed ventilation lines from the heat exchanger and from the internal combustion engine.
  • the embodiment variant of the ventilation inlet (1) according to FIG. 1 has no throttle and is designed for an increased coolant flow rate.
  • Such an inlet is suitable for a common ventilation line from the engine and cooler, ie ventilation line from the engine and ventilation line from the radiator are brought together in front of the ventilation inlet (1) according to FIG. 1.
  • Venturi By venting the ventilation lines (injection) via the ventilation hole (similar to Venturi) it is achieved that the fine air bubbles in the lines combine with the supplied air and flow as large bubbles to the water surface and are easily separated. At the same time, the hole ensures that the radiator and engine are vented, as it is located at the geodetically highest point in the cooling system.
  • the ventilation inlet (1) comprises an extension tube piece (4) which is directed downwards inside a first chamber (11) of the expansion tank and which ends shortly before the chamber bottom (15).
  • the first expansion tank chamber (11) is divided into two subchambers (8 and 9) by an overflow baffle (12) directed upwards from the chamber bottom (15), the extension pipe section (4) in the first subchamber (8) and the second subchamber (9) an impact protection (6) are arranged.
  • the latter impact protection is designed in the form of a foam fabric insert through which liquid flows and is attached to the vertical chamber wall (13) between the first compensation chamber wall (11) and a second compensation container chamber (16) arranged downstream of the liquid.
  • the foam fabric insert In vertical section, the foam fabric insert essentially has the shape of a right-angled triangle and an upper impact surface directed downward by 45 °, the overflow guide plate (12) having an upper rounding (14), the free end of which is directed perpendicularly to the aforementioned impact surface.
  • the as bubble protection trained impact protection (6) in the form of the foam fabric insert helps to further avoid further air bubble formation. Due to the overflow ("falling") of the water-air mixture from the first sub-chamber (8) into the second sub-chamber (9), air bubbles form again, especially when the coolant level is low (if the impact protection (6) is omitted). The impact protection or the foam fabric insert prevents the formation of such new air bubbles.
  • a further downstream chamber (10) is arranged downstream of the second container chamber (16) in the direction of flow of the liquid, the two chambers (16, 10) being separated from one another by a perforated chamber wall which is vertical in the exemplary embodiment in FIG. 4.
  • the perforated chamber wall is formed from a further foam fabric insert (7), which is constructed in the manner of impact protection (6).
  • the additional foam fabric insert (7) prevents the entrainment of air bubbles and further improves the degree of air separation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP91101413A 1990-02-09 1991-02-02 Vase d'expansion pour le liquide de refroidissement des moteurs à combustion interne refroidi par liquide Withdrawn EP0441275A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4003936 1990-02-09
DE4003936 1990-02-09
DE19904035284 DE4035284A1 (de) 1990-02-09 1990-11-07 Ausgleichsbehaelter fuer die kuehlfluessigkeit fluessigkeitsgekuehlter brennkraftmaschinen
DE4035284 1990-11-07

Publications (1)

Publication Number Publication Date
EP0441275A1 true EP0441275A1 (fr) 1991-08-14

Family

ID=25889927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101413A Withdrawn EP0441275A1 (fr) 1990-02-09 1991-02-02 Vase d'expansion pour le liquide de refroidissement des moteurs à combustion interne refroidi par liquide

Country Status (2)

Country Link
EP (1) EP0441275A1 (fr)
DE (1) DE4035284A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006874A1 (fr) * 1998-07-31 2000-02-10 Volvo Lastvagnar Ab Dispositif destine a un systeme de refroidissement
WO2006097162A1 (fr) * 2005-03-18 2006-09-21 Behr Gmbh & Co .Kg Échangeur thermique à aération
EP3032064A1 (fr) 2014-12-10 2016-06-15 MAN Truck & Bus AG Reservoir compensateur pour les liquides de refroidissement de moteurs a combustion interne refroidis par liquide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123144A (en) * 1997-04-15 2000-09-26 Cummins Engine Company, Inc. Integrated heat exchanger and expansion tank
DE10041121B4 (de) * 2000-08-22 2015-01-08 Behr Gmbh & Co. Kg Wärmeübertrager mit mehreren Wärmeübertragungskreisen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB530438A (en) * 1939-03-11 1940-12-12 Hubert Scott Paine Improvements in or relating to liquid-circulating systems
FR2086767A5 (fr) * 1970-04-08 1971-12-31 Peugeot & Renault
FR2110780A5 (fr) * 1970-10-30 1972-06-02 Progil
DE2437502B2 (de) * 1974-08-03 1976-10-28 Ausscheidung in: 24 62 094 Süddeutsche Kühlerfabrik Julius Fr. Behr; Daimler-Benz AG; 7000 Stuttgart Ausgleichsbehaelter fuer kuehlfluessigkeit einer brennkraftmaschine
FR2388133A1 (fr) * 1977-04-19 1978-11-17 Renault Perfectionnement aux circuits de refroidissement de moteurs a combustion interne
WO1980000863A1 (fr) * 1978-10-23 1980-05-01 Nohab Diesel Ab Systeme de refroidissement a eau froide pour moteurs a combustion interne charges par compresseur
US4677943A (en) * 1986-03-03 1987-07-07 Skinner Alan A Automotive non-pressure cooling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB530438A (en) * 1939-03-11 1940-12-12 Hubert Scott Paine Improvements in or relating to liquid-circulating systems
FR2086767A5 (fr) * 1970-04-08 1971-12-31 Peugeot & Renault
FR2110780A5 (fr) * 1970-10-30 1972-06-02 Progil
DE2437502B2 (de) * 1974-08-03 1976-10-28 Ausscheidung in: 24 62 094 Süddeutsche Kühlerfabrik Julius Fr. Behr; Daimler-Benz AG; 7000 Stuttgart Ausgleichsbehaelter fuer kuehlfluessigkeit einer brennkraftmaschine
FR2388133A1 (fr) * 1977-04-19 1978-11-17 Renault Perfectionnement aux circuits de refroidissement de moteurs a combustion interne
WO1980000863A1 (fr) * 1978-10-23 1980-05-01 Nohab Diesel Ab Systeme de refroidissement a eau froide pour moteurs a combustion interne charges par compresseur
US4677943A (en) * 1986-03-03 1987-07-07 Skinner Alan A Automotive non-pressure cooling system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006874A1 (fr) * 1998-07-31 2000-02-10 Volvo Lastvagnar Ab Dispositif destine a un systeme de refroidissement
WO2006097162A1 (fr) * 2005-03-18 2006-09-21 Behr Gmbh & Co .Kg Échangeur thermique à aération
CN101142458B (zh) * 2005-03-18 2010-09-29 贝洱两合公司 带排气的热交换器
EP3032064A1 (fr) 2014-12-10 2016-06-15 MAN Truck & Bus AG Reservoir compensateur pour les liquides de refroidissement de moteurs a combustion interne refroidis par liquide
DE102014018366A1 (de) 2014-12-10 2016-06-16 Man Truck & Bus Ag Ausgleichsbehälter für die Kühlflüssigkeit flüssigkeitsgekühlter Brennkraftmaschinen
RU2704588C2 (ru) * 2014-12-10 2019-10-29 Ман Трак Унд Бас Аг Расширительный бачок для охлаждающей жидкости двигателей внутреннего сгорания с жидкостным охлаждением
US10823044B2 (en) 2014-12-10 2020-11-03 Man Truck & Bus Se Expansion tank for the coolant of fluid-cooled internal combustion engines

Also Published As

Publication number Publication date
DE4035284A1 (de) 1991-08-14

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