EP1543227B1 - Vase d'expansion pour le circuit de refroidissement d'un moteur a combustion interne - Google Patents

Vase d'expansion pour le circuit de refroidissement d'un moteur a combustion interne Download PDF

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Publication number
EP1543227B1
EP1543227B1 EP03740408A EP03740408A EP1543227B1 EP 1543227 B1 EP1543227 B1 EP 1543227B1 EP 03740408 A EP03740408 A EP 03740408A EP 03740408 A EP03740408 A EP 03740408A EP 1543227 B1 EP1543227 B1 EP 1543227B1
Authority
EP
European Patent Office
Prior art keywords
cooling water
chambers
cooling
compensation reservoir
upper shell
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.)
Expired - Lifetime
Application number
EP03740408A
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German (de)
English (en)
Other versions
EP1543227A1 (fr
Inventor
Dirk Kastell
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.)
Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1543227A1 publication Critical patent/EP1543227A1/fr
Application granted granted Critical
Publication of EP1543227B1 publication Critical patent/EP1543227B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01P11/028—Deaeration devices
    • 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 a cooling circuit of an internal combustion engine according to the preamble of patent claim 1.
  • an expansion tank of a cooling circuit of an internal combustion engine is known, are provided in the measures for reducing the foaming of the introduced into the expansion tank coolant.
  • the cooling liquid is introduced via a cooling water pipe in a chamber of the container and there meets first on a provided in the chamber U-shaped trough, through which the cooling liquid can drain into the liquid reservoir after overcoming the overflow edges of the trough.
  • the effluent from the cooling tube cooling fluid initially bounces on a front side of the tub, creating the risk of additional foam formation.
  • a surge tank is shown, in which a cooling water pipe opens below the liquid level in the expansion tank.
  • the invention is therefore based on the object to provide measures in a cooling water reservoir in which in all possible driving situations of the motor vehicle (eg uphill or downhill, cornering with high lateral acceleration) emerging from the cooling water pipes and enriched with gas bubbles cooling water is slowed down, that foaming in the expansion tank is largely avoided.
  • the coolant flowing into the expansion tank should be vented before it is fed back to the actual cooling circuit of the internal combustion engine.
  • the arrangement of the cooling water pipes in the expansion tank are matched with the liquid level in the expansion tank so that normally Open cooling water pipes at the level or below the liquid level.
  • foaming is essentially prevented by the fact that the kinetic energy of the incoming water / gas mixture is effectively reduced by the higher viscosity of the liquid in the expansion tank.
  • the provided in the expansion tank arcuate baffles ensure that the kinetic energy of the incoming cooling water is continuously reduced, so that even in these driving conditions foaming is largely avoided.
  • a particularly effective connection of the inflowing cooling liquid results when the cooling water pipe which opens into the chamber with the guide wall is aligned with its outlet opening in such a way that the outflowing cooling liquid impinges approximately tangentially on the arcuate guide wall.
  • plastic expansion tank consists of an upper and lower shell, wherein in the upper shell, the baffle and the cooling water pipe is integrated.
  • a chamber system is also formed, in which the walls of the individual chambers are connected to each other via openings for pressure equalization. Breakthroughs are provided, through which the cooling water pipe is passed; These openings are dimensioned so that they are at the same time as the chambers connecting openings available.
  • the exit of the cooling liquid from the cooling water pipe and the guide wall are arranged in the rearmost chamber row with respect to the drain connection.
  • two cooling water pipes opening into the chamber system are advantageously provided, in which the first cooling water pipe communicates with a radiator and the second cooling water pipe with the water jacket of the cylinder head of the internal combustion engine.
  • the integrated into the cooling circuit of an internal combustion engine expansion tank 2 consists of an upper shell 4 and a lower shell 6, both of which are joined together, for example by vibration welding.
  • the inlet for the cooling liquid in the expansion tank 2 is effected by two integrated in the upper shell 4 pipes, hereinafter referred to as cooling water pipes 8 and 10.
  • the return or outlet 12 is formed in the lower shell 6.
  • a chamber system is formed, which is described in more detail below.
  • twelve chambers 14a to 14l are in the present embodiment formed, which are formed by corresponding out of the bottom of the upper shell 4 formed transverse and longitudinal walls 15a to 15i and 16a to 16h.
  • the two introduced into the upper shell 4 cooling water pipes 8 and 10 are passed through to the two rearmost chambers 14d and 14l provided in the transverse walls 15a to 15c and 15g to 15i openings 17a to 17c and 17d to 17f.
  • the openings 17a to 17c and 17d to 17f are larger than the outer diameter of the cooling water pipes 8 and 10, so that the chambers 14a to 14d or 14i to 141 via the openings 17a to 17c and 17d to 17f are in communication.
  • the two cooling water pipes 8, 10 are fixed in the upper shell 4 via plastic clips 18a to 18e formed out of the bottom of the upper shell 4.
  • apertures 20a to 20e connecting the chambers 14b to 14l are provided in the crossing points 19a to 19e of the transverse and longitudinal walls 15a to 15i and 16a to 16h, respectively.
  • arcuate guide walls 21 and 22 are provided, the operation will be explained in more detail later in connection with the emerging from the cooling water pipes 8, 10 cooling liquid.
  • the two baffles 21, 22 are analogous to the mounting brackets 18a to 18e integrally formed out of the bottom of the upper shell 4 and additionally anchored to the walls of the chamber system.
  • a provided with an internal thread opening 24 is provided which serves to receive a pressure or vacuum valve, not shown.
  • the lower shell 6 is likewise subdivided into individual chambers 26a to 26l whose size or dimensioning substantially corresponds to the chambers 14a to 141 provided in the upper shell 4.
  • the chambers 26a to 26l are in turn subdivided by corresponding transverse walls 27a to 27i and longitudinal walls 28a to 28h. Both in the transverse walls 27a to 27i and in the longitudinal walls 28a to 28h (except 28b) openings 29a to 29i and 30a to 30g are provided.
  • the surge tank 2 serves, as is well known, to cushion or to maintain the pressure in the cooling system of the internal combustion engine; In addition, it also has the function of ensuring ventilation of the cooling system. For this purpose, it must be ensured that air which flows together with the cooling liquid via the vent lines 8 and 10 in the expansion tank 2 remains in the expansion tank 2, wherein foaming of the cooling water to be prevented. Due to the structural internal structure of the expansion tank 2, these functions are ensured, which are explained in more detail below.
  • the cooling water pipes 8, 10 connected to the radiator or to the water jacket of the cylinder head of the internal combustion engine direct the cooling water purposefully into the rearmost chambers 14d and 141, respectively, relative to the outlet 12 provided in the lower shell 6.
  • the position of the cooling water pipes 8, 10 is matched to the liquid level in the expansion tank 2 so that the ends of the cooling water pipes 8, 10 in Open height or below the liquid level. Foaming is thus essentially prevented in that the kinetic energy of the inflowing cooling liquid or of the water / gas mixture is effectively reduced by the higher viscosity of the liquid in the expansion tank.
  • the approximately tangential impingement of the effluent cooling water on the two arcuately shaped baffles 21, 22 represents a further measure to reduce the kinetic energy and thus to reduce foaming.
  • the cooling liquid emerging from the cooling water pipes still opens into the expansion tank 2 below or at the level of the liquid level.
  • the provided in the expansion tank 2 arcuate guide walls 21, 22 ensure that the kinetic energy of the flowing into the two chambers 26 d and 26 l cooling water is not abrupt, but by the spiral-forming flow movement of the cooling water is gradually reduced, so that foaming is largely avoided even in these driving situations.
  • the cooling water is passed through the provided in the transverse and longitudinal walls 27, 28 openings 29, 30 through a plurality of chambers before it is fed via the outlet 12 again the actual cooling circuit of the internal combustion engine , In each chamber, the cooling water has the ability to separate foam, since the openings 29, 30 are below the water surface.
  • the provided in the chamber system of the upper shell 4 openings 17 and 20 serve to ensure the pressure balance of the air in the upper shell 4.
  • the chambers prevent the cooling water from swirling back and forth when the vehicle or engine is inclined; At the same time, the chamber system contributes to the overall stiffening of the expansion tank.
  • marking ribs 31, 32 serve to fill level indicator of the cooling water, wherein marker rib 31, the maximum cold filling volume V max and marking rib 32, the minimum cold filling volume V min reflects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (6)

  1. Vase d'expansion (2) pour le circuit de refroidissement d'un moteur à combustion interne, avec au moins un raccord d'arrivée et un raccord de départ, qui sont tous les deux raccordés au circuit de refroidissement, avec un système de chambres formé dans le vase et contenant un liquide de refroidissement, dans lequel les chambres individuelles sont reliées les unes aux autres au moins partiellement par des ouvertures, et dans lequel deux tubes d'eau de refroidissement (8, 10) raccordés au raccord d'arrivée débouchent dans le système de chambres, et dans lequel le vase d'expansion (2) est composé d'une coque supérieure et d'une coque inférieure (4, 6), de telle manière que les deux tubes d'eau de refroidissement (8, 10) soient intégrés dans la coque supérieure (4), caractérisé en ce que
    - il est prévu dans la coque supérieure (4) deux éléments de chicane (21, 22) pour le liquide de refroidissement entrant, qui sont réalisés en forme de paroi de déviation courbe (21, 22), le long- de laquelle le liquide de refroidissement entrant est guidé de façon ciblée, dans lequel
    - les deux tubes d'eau de refroidissement (8, 10) débouchent dans deux chambres (14d, 14l) formées séparément l'une de l'autre dans la coque supérieure (4), et
    - un élément de chicane (21, 22) est chaque fois positionné dans chacune des deux chambres (14d, 141).
  2. Vase d'expansion selon la revendication 1, caractérisé en ce que le tube d'eau de refroidissement (8, 10) débouchant dans la chambre (14d, 14l) avec la paroi de déviation (21, 22) a son embouchure de sortie orientée de telle manière que le liquide de refroidissement sortant arrive à peu près tangentiellement sur la paroi de déviation (21, 22).
  3. Vase d'expansion selon la revendication 1 ou 2, caractérisé en ce que les parois (15a à 15c ou 15g à 15i) des chambres individuelles (14a à 14d ou 14i à 141) présentent dans la coque supérieure (4) des passages (17a à 17c ou 17d à 17f), à travers lesquels le tube d'eau de refroidissement (8, 10) est conduit, dans lequel les passages (17a à 17c ou 17d à 17f) sont dimensionnés de telle manière qu'ils soient disponibles en même temps comme ouvertures reliant les chambres (14a à 14d ou 14i à 141).
  4. Vase d'expansion selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi de déviation (21, 22) est disposée dans la série de chambres (14d, 14h, 14l) située le plus à l'arrière par rapport au raccord de départ (12).
  5. Vase d'expansion selon l'une quelconque des revendications 3 à 4, caractérisé en ce qu'un système de chambres est également formé dans la coque inférieure (6), dans lequel les chambres (26a à 261) sont en communication par des ouvertures (29a à 29i ou 30a à 30g) prévues dans des parois transversales (27a à 27i) et des parois longitudinales (28a à 28h).
  6. Vase d'expansion selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier tube d'eau de refroidissement (8) est en communication avec un refroidisseur et le deuxième tube d'eau de refroidissement (10) est en communication avec la chemise d'eau de la culasse du moteur à combustion interne.
EP03740408A 2002-07-12 2003-07-03 Vase d'expansion pour le circuit de refroidissement d'un moteur a combustion interne Expired - Lifetime EP1543227B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10231480A DE10231480A1 (de) 2002-07-12 2002-07-12 Ausgleichsbehälter für einen Kühlkreislauf einer Brennkraftmaschine
DE10231480 2002-07-12
PCT/EP2003/007104 WO2004007924A1 (fr) 2002-07-12 2003-07-03 Vase d'expansion pour le circuit de refroidissement d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1543227A1 EP1543227A1 (fr) 2005-06-22
EP1543227B1 true EP1543227B1 (fr) 2009-04-01

Family

ID=29796299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740408A Expired - Lifetime EP1543227B1 (fr) 2002-07-12 2003-07-03 Vase d'expansion pour le circuit de refroidissement d'un moteur a combustion interne

Country Status (4)

Country Link
US (1) US20050224021A1 (fr)
EP (1) EP1543227B1 (fr)
DE (2) DE10231480A1 (fr)
WO (1) WO2004007924A1 (fr)

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US20070068951A1 (en) * 2005-09-26 2007-03-29 Manngmbh Reservoir with a channel
US7383795B2 (en) * 2006-03-16 2008-06-10 Daimler Trucks North America Llc Surge tank
GB2452070A (en) * 2007-08-24 2009-02-25 Ford Global Tech Llc Cooling System Expansion Tank
CH706212B1 (de) * 2012-03-08 2015-12-15 Schwanden Kunststoff Ausgleichsbehälter für ein Kühlsystem einer Verbrennungskraftmaschine.
CH707499B1 (de) * 2013-01-19 2017-02-28 Schwanden Kunststoff Ausgleichsbehälter für das Kühlsystem einer Verbrennungskraftmaschine.
DE102013018781B3 (de) * 2013-11-08 2015-01-08 Audi Ag Ausgleichsbehälter für kühlflüssigkeit eines motorkühlsystems
JP6475000B2 (ja) * 2014-11-20 2019-02-27 トヨタ自動車株式会社 ラジエータ用リザーバタンク及びラジエータ構造
US9726069B2 (en) * 2014-12-26 2017-08-08 Ford Global Technologies, Llc Method and system for engine cooling system control
US10513967B2 (en) * 2014-12-26 2019-12-24 Ford Global Technologies, Llc Method and system for engine cooling system control
US10365146B2 (en) * 2014-12-26 2019-07-30 Ford Global Technologies, Llc Method and system for engine cooling system control
US9719409B2 (en) * 2014-12-26 2017-08-01 Ford Global Technologies, Llc Method and system for engine cooling system control
JP2017180445A (ja) * 2016-03-28 2017-10-05 現代自動車株式会社Ｈｙｕｎｄａｉ Ｍｏｔｏｒ Ｃｏｍｐａｎｙ リザーバータンク
JP6350627B2 (ja) * 2016-09-29 2018-07-04 マツダ株式会社 気液分離器及び該気液分離器を備えたエンジン冷却液の気体抜き構造
JP6802133B2 (ja) * 2017-09-26 2020-12-16 トヨタ自動車株式会社 リザーブタンク
JP7063149B2 (ja) * 2018-07-02 2022-05-09 株式会社デンソー リザーブタンク
DE102019212096A1 (de) * 2019-08-13 2021-02-18 Volkswagen Aktiengesellschaft Ausgleichbehälter
DE102020114591A1 (de) 2020-06-02 2021-12-02 Bayerische Motoren Werke Aktiengesellschaft Kühlsystem für ein Kraftfahrzeug und Kraftfahrzeug
CA3237513A1 (fr) * 2021-11-05 2023-05-11 Abc Technologies Inc. Bac d'expansion pour automobile avec chambre de tourbillonnement immergee
CN116196657B (zh) * 2021-11-30 2024-05-28 内蒙古伊利实业集团股份有限公司 用于消除涂挂酱料中的气泡的装置和方法

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Also Published As

Publication number Publication date
EP1543227A1 (fr) 2005-06-22
DE10231480A1 (de) 2004-01-29
DE50311380D1 (de) 2009-05-14
US20050224021A1 (en) 2005-10-13
WO2004007924A1 (fr) 2004-01-22

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