EP0915237B1 - Système de refroidissement pour un moteur à combustion interne - Google Patents

Système de refroidissement pour un moteur à combustion interne Download PDF

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Publication number
EP0915237B1
EP0915237B1 EP98890316A EP98890316A EP0915237B1 EP 0915237 B1 EP0915237 B1 EP 0915237B1 EP 98890316 A EP98890316 A EP 98890316A EP 98890316 A EP98890316 A EP 98890316A EP 0915237 B1 EP0915237 B1 EP 0915237B1
Authority
EP
European Patent Office
Prior art keywords
thermostat
cooling system
return line
water pump
housing
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
EP98890316A
Other languages
German (de)
English (en)
Other versions
EP0915237A3 (fr
EP0915237A2 (fr
Inventor
Siegfried Ing. Heer
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.)
TCG Unitech AG
Original Assignee
TCG Unitech 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 TCG Unitech AG filed Critical TCG Unitech AG
Publication of EP0915237A2 publication Critical patent/EP0915237A2/fr
Publication of EP0915237A3 publication Critical patent/EP0915237A3/fr
Application granted granted Critical
Publication of EP0915237B1 publication Critical patent/EP0915237B1/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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0263—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being temperature, ingress of humidity or leakage
    • 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
    • F01P2070/00—Details

Definitions

  • the present invention relates to a cooling system for motor vehicles according to the Preamble of claim 1.
  • Such a cooling system should have the simplest possible structure and be compact.
  • the simple one Structure enables inexpensive production and the largest possible Reliability.
  • the compact structure is necessary because the installation space for Ancillaries are subject to an increasing number of restrictions.
  • On such a cooling system consists in its entirety of a cooling water pump, which is usually designed as a radial pump and the cooling water to the Engine block and / or to the cylinder head of an internal combustion engine.
  • a bypass line leads to the engine block or cylinder head Thermostat, while another line via a cooler also to the Thermostat is performed.
  • a heating heat exchanger is provided which uses the heat of the cooling water to flow into the interior of the To heat the air to be injected into the vehicle.
  • a thermostat In conventional cooling systems, a thermostat is occasionally in the range of Arranged cooler. Locks below a predetermined temperature Expansion element from the cooling water passage through the radiator, so that Cooling water only led through the bypass line in the so-called small circuit becomes. This enables the engine to warm up quickly after a cold start. When the predetermined temperature is reached, the expansion element changes its shape Length and clears the way of the cooling water through the radiator, making a proper engine cooling is achieved.
  • a Thermostat arranged in the area of the cooling water pump.
  • the suction side and The pressure side housing of the cooling water pump consists of two separate ones Components, and at least a third component is provided for the thermostat.
  • Such cooling systems are satisfactory in their function, the manufacture and the assembly is relatively complex.
  • WO 96/03574 describes a cooling system for an internal combustion engine Combustion known, in which the cooling water pump and the thermostat are arranged relatively compact. The flow to the thermostat is via a substantially frustoconical housing, and the thermostat is in the flowed essentially along its axis. It has been found that the response time in such a construction is relatively long. This means, that the thermostat is closed during a cold start to keep the cooling water on Pass the cooler. When the engine is warm, the thermostat should open to ensure adequate cooling. With the conventional Solution, the cooling water can reach its target temperature under certain operating conditions Reach relatively quickly and exceed for a certain period of time until the thermostat opens. This can lead to undesirable overheating come.
  • the object of the present invention is the cooling system described above to develop in such a way that production is as simple and inexpensive as possible is possible and that a particularly simple structure is achieved.
  • the thermostat should respond quickly.
  • this object is characterized by the features of the Part of claim 1 solved.
  • Cooling system can reduce the number of components and it can be a particularly compact and easy to manufacture cooling water pump thermostat unit being represented.
  • one pressure side housing of the cooling water pump partly from the component which forms the suction side housing and the other part of the bearing part is formed, and in particular if the sealing plane between the suction side housing and the bearing part, the pressure side housing essentially divides along a middle plane.
  • a connecting part for a heating return provided on a flange surface on Thermostat housing is attached, which is substantially parallel to the axial direction of the thermostat is oriented.
  • the thermostat is used by the cooling medium Direct flow from the heating return.
  • one Flow deflection bracket is formed in one piece with a fastening part which is a connector for a heating return in two different orientations is attachable.
  • a position of the connector is particularly special suitable for longitudinal installation of the motor while the other position is suitable for transverse installation.
  • suction-side housing as part of the engine block or cylinder head one Internal combustion engine is formed. In this way, another component omitted, and it can reduce the effort in editing, because for example, the cylinder head in any case for various other machining operations must be clamped.
  • the water pump thermostat unit of Fig. 1 consists of a first Component 1, which integrally forms the suction-side housing 1a of the cooling water pump 2 and forms the thermostat housing 1b.
  • a Seal 3 of the bearing part 4 for the cooling water pump 2 flanged On the first component 1 is a Seal 3 of the bearing part 4 for the cooling water pump 2 flanged, the same time the bracket 4a for the thermostat 5 forms.
  • a connection 6 on the bearing part 4 is provided for the return of the cooling water from the cooler, not shown.
  • a pump impeller 7 is placed on a pump shaft 8 in order to move from it to be rotated.
  • the pressure-side space of the cooling water pump 2 is partly as a recess 9a in the bearing part 4 and the other part formed as a recess 9b in the first component 1.
  • the thermostat 5 has an expansion element 10, which has a bracket 11 is stored, which is held by brackets 21.
  • a first spring 12 presses in first poppet valve 13 in the closed position.
  • a second spring 14 is loaded a second poppet valve 15 in the closing direction.
  • the springs 12 and 14 are as Compression coil springs formed.
  • the poppet valve 13 controls an opening through the cooling water from the cooler, not shown, to the cooling water pump 2 is returned.
  • the poppet valve 15 controls the bypass connection 16, via the Cooling water returned directly from the engine block or cylinder head, not shown becomes.
  • a connecting part 18 is on a lateral flange 17 of the component 1 provided for the return from a heating heat exchanger, not shown.
  • a flow deflection bracket 19 is formed, which the Thermostat 5 encloses.
  • the bracket 19 has the task of cooling water flows through the poppet valve 15 so that it deflects the thermostat 5 flows safely around. This ensures that the thermostat increases the temperature of the returning cooling water quickly and reliably reacts and the poppet valve when a predetermined temperature is exceeded 15 closes.
  • the formation of the flow deflection bracket 19 made of plastic a significant simplification of the manufacturing process for the Component 1 compared to a rib molded onto this. This can cause a substantial cost savings can be achieved.
  • a seal 20 is provided to the connection part 18 against the Seal flange 17.
  • the flow deflection bracket 19 can be formed in one piece with the connecting part 18 can be provided in an alternative embodiment be that the flow deflection bracket 19 is formed on its own fastening part is that with the connecting part 18 in two different positions can be connected, for example via a dovetail guide. This is it is possible, using the same components, the connecting part 18 in attach different positions, d. H. in a position in which the connecting part 18 to the left in FIG. 2, as shown, or alternatively in a position in which it points to the right.
  • the present invention enables an assembly consisting of a cooling water pump and thermostat, with few components and low manufacturing costs to realize.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (8)

  1. Système de refroidissement pour des véhicules automobiles avec une pompe à eau de refroidissement formée en tant que pompe centrifuge et avec un thermostat (5), pour régler le refroidissement, qui est installé dans un boítier de thermostat (1b), la pompe à eau de refroidissement (2) présentant du côté aspiration un boítier (1a) qui est formé d'une seule pièce avec le boítier de thermostat (1b) et qui forme un premier composant (1), un raccordement (6) étant prévu pour le retour de l'eau de refroidissement provenant d'un radiateur et un raccordement en dérivation (16) pour recycler l'eau de refroidissement provenant d'un bloc de cylindre ou d'une culasse,
    caractérisé en ce qu'
    en plus du raccordement (6) pour le retour de l'eau et du raccordement en dérivation (16), on prévoit une pièce de raccordement (18) pour le retour du chauffage sur lequel est formé d'une seule pièce un étrier de déviation d'écoulement (19) qui entoure partiellement le thermostat (5).
  2. Système de refroidissement selon la revendication 1,
    caractérisé en ce qu'
    une attache (4a) pour le thermostat (5) est formée d'une seule pièce avec un support de palier (4) pour la pompe à eau de refroidissement (2).
  3. Système de refroidissement selon l'une des revendications 1 ou 2,
    caractérisé en ce qu'
    un boítier (9a, 9b) du côté refoulement de la pompe à eau de refroidissement (2) d'une part est formé par le premier composant (1) qui forme le boítier (1a) du côté aspiration et d'autre part est formé par un support de palier (4).
  4. Système de refroidissement selon la revendication 3,
    caractérisé en ce que
    le plan d'étanchéité entre le boítier (1a) du côté aspiration et le support de palier (4) divise le boítier (9a, 9b) du côté refoulement pour l'essentiel le long du plan moyen.
  5. Système de refroidissement selon l'une des revendications 1 à 4,
    caractérisé en ce qu'
    on a prévu pour un retour du chauffage une pièce de raccordement (18) qui est fixée sur le boítier de thermostat (1b) à une surface de bride (17) qui est orientée pratiquement parallèlement à la direction de l'axe du thermostat (5).
  6. Système de refroidissement selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la pièce de raccordement (18) pour le retour du chauffage est conçue de telle sorte que le thermostat (5) est pour l'essentiel alimenté en angle droit par rapport à son axe.
  7. Système de refroidissement selon l'une des revendications 1 à 6,
    caractérisé en ce que
    l'étrier de déviation d'écoulement (19) est formé d'une seule pièce avec un élément de fixation, sur lequel la pièce de raccordement (18) pour un retour du chauffage peut être fixée selon deux orientations différentes.
  8. Système de refroidissement selon l'une des revendications 1 à 7,
    caractérisé en ce que
    le boítier du côté aspiration est formé en tant qu'élément de bloc-moteur ou de culasse d'un moteur à combustion interne.
EP98890316A 1997-11-06 1998-10-29 Système de refroidissement pour un moteur à combustion interne Expired - Lifetime EP0915237B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0069597U AT2537U1 (de) 1997-11-06 1997-11-06 Kühlsystem für kraftfahrzeuge
AT695/97U 1997-11-06
AT69597U 1997-11-06

Publications (3)

Publication Number Publication Date
EP0915237A2 EP0915237A2 (fr) 1999-05-12
EP0915237A3 EP0915237A3 (fr) 2000-01-05
EP0915237B1 true EP0915237B1 (fr) 2002-09-25

Family

ID=3497395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98890316A Expired - Lifetime EP0915237B1 (fr) 1997-11-06 1998-10-29 Système de refroidissement pour un moteur à combustion interne

Country Status (4)

Country Link
US (1) US6112706A (fr)
EP (1) EP0915237B1 (fr)
AT (2) AT2537U1 (fr)
DE (1) DE59805674D1 (fr)

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JP2000110561A (ja) * 1998-10-05 2000-04-18 Honda Motor Co Ltd エンジン用冷却装置
DE19943981A1 (de) * 1999-09-14 2001-03-15 Behr Thermot Tronik Gmbh & Co Ventil zum Regeln der Temperatur eines Verbrennungsmotors
US6394059B2 (en) * 2000-01-26 2002-05-28 International Engine Intellectual Property Company, L.L.C. Front module housing
US6343573B1 (en) * 2000-08-22 2002-02-05 Nippon Thermostat Co., Ltd. Thermostat device
FR2816359B1 (fr) * 2000-11-08 2005-09-02 Valeo Thermique Moteur Sa Circuit de fluide de refroidissement et de chauffage pour vehicule automobile
DE10100373B4 (de) 2001-01-05 2004-03-25 Dr.Ing.H.C. F. Porsche Ag Wasserpumpe zur Kühlmittelförderung in einer Brennkraftmaschine
US6843209B2 (en) * 2001-06-20 2005-01-18 Honda Giken Kogyo Kabushiki Kaisha Engine cooling water passage structure and gas/liquid separator for engine cooling system
FR2840953B1 (fr) * 2002-06-12 2004-09-03 Mark Iv Systemes Moteurs Sa Boitier de sortie d'eau muni d'un thermostat et procede de fabrication
FR2842249B1 (fr) * 2002-07-11 2004-09-24 Mark Iv Systemes Moteurs Sa Module et circuit de refroidissement comprenant un tel module
FR2842250B1 (fr) * 2002-07-12 2004-09-24 Mark Iv Systemes Moteurs Sa Module pour circuit de refroidissement et circuit comprenant un tel module
US6679431B1 (en) 2002-12-06 2004-01-20 Mathson Industries Thermostat housing with integral valve
FR2864194B1 (fr) * 2003-12-18 2006-02-03 Renault Sas Dispositif de protection de joint d'etancheite
US7108193B2 (en) * 2003-12-29 2006-09-19 Wahler Metalurgica Ltda Integration of a thermostat in the recycling system of the vehicular exhaust gas recirculation (EGR) system
DE102004004050A1 (de) * 2004-01-27 2005-08-11 Bayerische Motoren Werke Ag Kühlmittelpumpenanordnung für eine Brennkraftmaschine
JP4444056B2 (ja) * 2004-09-30 2010-03-31 本田技研工業株式会社 エンジンの冷却構造
DE102006019579A1 (de) * 2006-04-27 2007-10-31 Bayerische Motoren Werke Ag Kühlmittelkreislauf für eine Brennkraftmaschine
US7353793B1 (en) * 2007-02-06 2008-04-08 International Engine Intellectual Property Company, Llc Hold down plate for securing a component
WO2010146609A1 (fr) * 2009-06-19 2010-12-23 Industrie Saleri Italo S.P.A. Pompe d'agent de refroidissement mécanique, en particulier pour véhicules, et procédé de travail de la pompe
KR20110051832A (ko) * 2009-11-11 2011-05-18 현대자동차주식회사 워터펌프를 구비한 엔진
EP2644861B1 (fr) * 2012-03-28 2016-05-18 Honda Motor Co., Ltd. Motocycle avec structure de système de refroidissement et moteur à combustion interne refroidi par eau
US9157448B2 (en) 2012-04-03 2015-10-13 General Electric Company Turbulence member, system and fluid handling device for protecting a seal assembly
US9347363B2 (en) 2013-02-14 2016-05-24 Cummins Ip, Inc. Fluid pump assembly
CN103644023A (zh) * 2013-11-07 2014-03-19 山西新天地发动机制造有限公司 一种设置有节温器室的发动机水泵
DE102015224448A1 (de) * 2015-12-07 2017-06-08 Mahle International Gmbh Kühlmittelpumpe für einen Motorkühlkreis
KR20200100295A (ko) * 2019-02-18 2020-08-26 현대자동차주식회사 온도 반응 가변식 워터펌프 및 엔진 냉각 시스템
KR20200116676A (ko) * 2019-04-02 2020-10-13 현대자동차주식회사 차량용 워터펌프
US11898486B2 (en) * 2021-08-06 2024-02-13 Carter Fuel Systems, Llc Water pump assemblies and related methods
DE102022210905A1 (de) * 2022-10-14 2024-04-25 Zf Friedrichshafen Ag Versorgungsmodulgehäuse für ein Fahrzeug, Versorgungsmodul für ein Fahrzeug und Fahrzeug

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Also Published As

Publication number Publication date
EP0915237A3 (fr) 2000-01-05
AT2537U1 (de) 1998-12-28
DE59805674D1 (de) 2002-10-31
EP0915237A2 (fr) 1999-05-12
ATE224999T1 (de) 2002-10-15
US6112706A (en) 2000-09-05

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