EP1046798A2 - Kühlsystem für eine Brennkraftmaschine - Google Patents
Kühlsystem für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1046798A2 EP1046798A2 EP00890119A EP00890119A EP1046798A2 EP 1046798 A2 EP1046798 A2 EP 1046798A2 EP 00890119 A EP00890119 A EP 00890119A EP 00890119 A EP00890119 A EP 00890119A EP 1046798 A2 EP1046798 A2 EP 1046798A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- coolant pump
- cooling system
- driven
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 53
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 239000002826 coolant Substances 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims description 12
- 230000007257 malfunction Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000012190 activator Substances 0.000 abstract 1
- 238000013021 overheating Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
Definitions
- the present invention relates to a cooling system for an internal combustion engine Combustion with an electrically driven coolant pump to deliver a coolant through the internal combustion engine and through a cooler to remove the heat, wherein a safety device is provided which has an emergency detection device and a Has emergency actuation device, wherein the emergency detection device is designed for this purpose is to detect a malfunction in the area of the electrically driven coolant pump.
- the coolant pump for internal combustion engines is usually via a drive belt driven directly by the internal combustion engine.
- the speed the coolant pump is proportional to the speed of the internal combustion engine.
- the radial pumps used increase the delivery rate and thus also the required Drive power with the speed disproportionately.
- the low speed range is critical.
- a conventional Coolant pump that is correctly designed for the low speed range the delivery rate in the high speed range is much larger than would be necessary.
- the power required to drive the coolant pump is therefore high to a large extent classified as real power loss.
- An electrically driven coolant pump the speed of which is naturally independent of The speed of the internal combustion engine is the advantage for every operating state Internal combustion engine to be able to set the minimum required delivery rate. In this way, the energy requirement for the coolant pump can be significantly reduced, which is particularly true in the area of high speeds, low loads and cold Engine noticeable.
- DE 41 16 496 A describes a safety device for a rotating one Coolant-cooled internal combustion engine is known.
- This safety device the Failure of an electrical coolant pump is detected and takes place depending on this detection an adjustment of the ignition timing or the amount of fuel injected. Thereby overheating of the internal combustion engine can be avoided.
- a similar solution is shown in JP 57-193 716 A. With such solutions there is only a very low thermal load Internal combustion engines a very limited operation possible. If the failure of the Coolant pump is carried out at a point in time before thermal stress, can still with such solutions, overheating of the internal combustion engine cannot be reliably avoided.
- DE 40 38 695 A is a drive arrangement for an auxiliary unit Internal combustion engine known.
- the starter or the rotor of an electric motor is turned on attached to a rotating part driven by the internal combustion engine, and the auxiliary unit is driven by the other part of the electric motor.
- DE 26 31 121 A relates to a liquid-cooled internal combustion engine, on the one hand a directly driven coolant pump and on the other hand one Auxiliary circulating pump has to correspond to the mass flow of the coolant to be able to adapt to specific requirements.
- the problem of failure is one normally only an internal combustion engine powered by an electrically driven coolant pump not addressed.
- the object of the present invention is to provide a cooling system in which, on the one hand, the To take advantage of an electrically driven coolant pump and on the other hand the need after the greatest possible security of the operation of the internal combustion engine To take into account.
- the operation of the electrically driven coolant pump is monitored. If a malfunction is detected, a mechanical connection is made the coolant pump is manufactured with the internal combustion engine to run an emergency operation guarantee. Depending on the available space, it can be the drive belt to drive the alternator, the compressor of the air conditioning system or the like act. It is particularly favorable if the emergency actuation device establishes a connection the coolant pump with a drive belt that is produced by the internal combustion engine is driven.
- the electrical driven coolant pump has an external rotor type motor which a stator is surrounded by a rotor on its outer circumference. In this case the outer peripheral surface of the rotor as an engagement surface for that of the internal combustion engine driven component can be used.
- the Emergency actuation device has a friction wheel which is rotating with a spring force Part of the coolant pump and component driven by the internal combustion engine Intervention can be brought.
- a friction wheel can transmit drive power be sufficient for emergency operation of the coolant pump. Because of the lifespan There are only minimal requirements for the friction wheel when selecting of the corresponding materials great degrees of freedom.
- the electrical driven coolant pump is movably supported and by the emergency actuator can be brought into a position in which an engagement with one of the internal combustion engine driven component exists.
- a rotatable component of the Coolant pump can be directly engaged with a drive belt or the like, which simplifies the construction.
- the emergency operating device has a magnetic coupling, through which a direct drive the coolant pump can be produced by the internal combustion engine. Doing so the coolant pump coaxially with another driven by the internal combustion engine Unit or component arranged, such as the alternator, the oil pump or the pulley for driving a camshaft.
- the emergency detection device has a temperature sensor which detects the temperature of the internal combustion engine and / or the coolant. It it is assumed that an inadmissible increase in the coolant temperature or the temperature of the internal combustion engine due to a fault in the coolant pump is caused. Alternatively or additionally, it can be provided that the emergency detection device has a sensor for detecting the speed of the coolant pump. In this way it can be prevented that in extreme operating states of the internal combustion engine emergency operation is triggered when the coolant pump is functioning properly becomes.
- the emergency operating device is designed such that a mechanical connection of the coolant pump, once established with a component driven by the internal combustion engine only in the workshop is solvable, and that a warning indicator is provided to the state of the emergency actuation device display. This prevents the emergency system from having a is used for a long time in operation and is ultimately overused.
- the present invention relates to an internal combustion engine with the one described above Cooling system is equipped.
- FIG. 1 shows an internal combustion engine 1 with a drive belt on the end face thereof 2 is arranged.
- the drive belt 2 wraps around pulleys 3, 4 and 5, the first pulley 3 connected to the crankshaft, not shown, of the internal combustion engine 1 is, while the other pulleys 4 and 5 with also not shown
- Auxiliary units are connected, which are driven by the internal combustion engine 1. At These auxiliary units can be, for example, the alternator, a compressor act for an air conditioner or the like.
- a belt tensioner 6 ensures the corresponding Tension of the drive belt 2.
- an electrically driven coolant pump 7 is arranged, which as a radial centrifugal pump directly flanged electric motor is formed.
- a drive pulley 8 is provided which is connected directly to the pump, but at a distance from the drive belt 2.
- An emergency actuation device 9 is designed in the form of a friction wheel 10, which is operated by a Spring 11 pressed into the space between the drive pulley 8 and the drive belt 2 becomes. In normal operation, however, the friction wheel 10 is held in place by a holding clip 12 retracted position, in which there is neither the drive belt 2 nor the drive pulley 8 touches.
- An emergency detection device 13 is connected to a temperature sensor 14 which detects the Temperature of the internal combustion engine 1 detected. Furthermore, the emergency detection facility 13 with a speed sensor 15 for determining the speed of the coolant pump 7 connected. If an impermissibly high temperature of the internal combustion engine 1 or a If the coolant pump 7 is detected at a standstill, the emergency detection device 13 is released the bracket 12 out, so that the friction wheel 10 is a non-positive connection between the Drive belt 2 and the drive pulley 8 produces. In this way, the Coolant pump 7 can also be driven mechanically by the drive belt 2.
- the embodiment variant of FIG. 2 differs from the embodiment variant of Fig. 1 mainly in that the coolant pump 7 as a whole pivotable about an axis 16 is arranged.
- a spring 17 presses the entire coolant pump 7 against the drive belt 2, but a holding device (not shown in FIG. 2) is provided, which keeps the coolant pump 7 away from the drive belt 2 in normal operation. Only at; only when In the event of an emergency, the mechanical intervention is established.
- the coolant pump 7 is a coolant pump 7 of the type which is particularly suitable for the invention External rotor shown in a longitudinal section.
- the coolant pump 7 consists of a drive shaft 20, on which a pump impeller 21 is attached.
- the coolant is over a Intake manifold 22 sucked, and by the rotation of the impeller 21 into a pressure pipe 23 pushed out.
- the drive shaft 20 is on a fixed sleeve 26 via roller bearings 24, 25 stored, a mechanical seal 27 for sealing against the cooling medium.
- On the Sleeve 26 is attached to a stator 28 which is composed of electromagnetic windings is.
- the rotor of the electric motor thus formed is designated 29 and exists from an essentially pot-shaped component 30, on the inner circumferential surface of which permanent magnets are used 31 are attached.
- the rotor 29 is fixed to the drive shaft 20.
- the free outer surfaces 33 of the component 30 represent the engagement surface for the friction wheel 10 in the embodiment of FIG. 1 or the drive belt 2 the embodiment of Fig. 2.
- the present invention enables the advantages of an electrically driven coolant pump, which consist in reduced energy consumption, with the reliability of a conventionally powered coolant pump.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
- Fig. 1
- eine erste Ausführungsvariante einer Brennkraftmaschine mit einem erfindungsgemäßen Kühlsystem in einer schematischen Draufsicht,
- Fig. 2
- eine weitere Ausführungsvariante der Erfindung in einer Darstellung entsprechend der Fig. 1, und
- Fig. 3
- eine elektrisch betriebene Kühlmittelpumpe mit einem Außenläufer.
Claims (10)
- Kühlsystem für eine Brennkraftmaschine (1) mit innerer Verbrennung mit einer elektrisch angetriebenen Kühlmittelpumpe (7) zur Förderung eines Kühlmittels durch die Brennkraftmaschine (1) und durch einen Kühler zur Abfuhr der Wärme, wobei eine Sicherheitseinrichtung vorgesehen ist, die eine Notfallerkennungseinrichtung (13) und eine Notfallbetätigungseinrichtung (9) aufweist, wobei die Notfallerkennungseinrichtung (13) dazu ausgebildet ist, einen Störfall im Bereich der elektrisch angetriebenen Kühlmittelpumpe (7) zu erfassen, dadurch gekennzeichnet, dass die Notfallbetätigungseinrichtung (9) dazu ausgebildet ist, bei Vorliegen eines Störfalls im Bereich der Kühlmittelpumpe (7) eine mechanische Verbindung der Kühlmittelpumpe (7) mit einem von der Brennkraftmaschine (1) angetriebenen Bauteil (30) zu bewirken.
- Kühlsystem nach Anspruch 1, dadurch gekennzeichnet, dass die Notfallbetätigungseinrichtung (9) eine Verbindung der Kühlmittelpumpe (7) mit einem Antriebsriemen (2) herstellt, der von der Brennkraftmaschine (1) angetrieben wird.
- Kühlsystem nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die elektrisch angetriebene Kühlmittelpumpe (7) einen Motor vom Typ des Außenläufers aufweist, bei dem ein Stator (28) an seinem äußeren Umfang von einem Rotor (29) umgeben ist.
- Kühlsystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Notfallbetätigungseinrichtung (9) ein Reibrad (10) aufweist, das durch Federkraft mit einem sich drehenden Teil der Kühlmittelpumpe (7) und von der Brennkraftmaschine (1) angetriebenen Bauteil (30) in Eingriff gebracht werden kann.
- Kühlsystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die elektrisch angetriebene Kühlmittelpumpe (7) beweglich gelagert ist und von der Notfallbetätigungseinrichtung (9) in eine Stellung gebracht werden kann, in der ein Eingriff mit einem von der Brennkraftmaschine (1) angetriebenen Bauteil (30) besteht.
- Kühlsystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Notfallbetätigungseinrichtung (9) eine Magnetkupplung aufweist, durch die ein direkter Antrieb der Kühlmittelpumpe (7) durch die Brennkraftmaschine (1) hergestellt werden kann.
- Kühlsystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Notfallerkennungseinrichtung (13) einen Temperatursensor (14) aufweist, der die Temperatur der Brennkraftmaschine (1) und/oder des Kühlmittels erfasst.
- Kühlsystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Notfallerkennungseinrichtung (13) einen Sensor (15) zur Erfassung der Drehzahl der Kühlmittelpumpe (7) aufweist.
- Kühlsystem nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Notfallbetätigungseinrichtung (9) so ausgebildet ist, dass eine einmal hergestellte mechanische Verbindung der Kühlmittelpumpe (7) mit einem von der Brennkraftmaschine (1) angetriebenen Bauteil (30) nur werkstattmäßig lösbar ist, und dass eine Warnanzeige vorgesehen ist, um den Zustand der Notfallbetätigungseinrichtung (9) anzuzeigen.
- Brennkraftmaschine (1) mit innerer Verbrennung gekennzeichnet durch ein Kühlsystem nach einem der Ansprüche 1 bis 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT00890119T ATE310899T1 (de) | 1999-04-22 | 2000-04-13 | Kühlsystem für eine brennkraftmaschine |
| EP04011758A EP1447540B1 (de) | 1999-04-22 | 2000-04-13 | Kühlsystem für eine Brennkraftmaschine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT71499 | 1999-04-22 | ||
| AT71499 | 1999-04-22 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04011758.2 Division-Into | 2004-05-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1046798A2 true EP1046798A2 (de) | 2000-10-25 |
| EP1046798A3 EP1046798A3 (de) | 2001-12-12 |
| EP1046798B1 EP1046798B1 (de) | 2005-11-23 |
Family
ID=3497877
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00890119A Expired - Lifetime EP1046798B1 (de) | 1999-04-22 | 2000-04-13 | Kühlsystem für eine Brennkraftmaschine |
| EP04011758A Expired - Lifetime EP1447540B1 (de) | 1999-04-22 | 2000-04-13 | Kühlsystem für eine Brennkraftmaschine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04011758A Expired - Lifetime EP1447540B1 (de) | 1999-04-22 | 2000-04-13 | Kühlsystem für eine Brennkraftmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6318307B1 (de) |
| EP (2) | EP1046798B1 (de) |
| AT (2) | ATE299990T1 (de) |
| DE (2) | DE50010786D1 (de) |
| ES (1) | ES2242949T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1529936A1 (de) * | 2003-11-03 | 2005-05-11 | Bayerische Motoren Werke Aktiengesellschaft | Kühlanlage für einen Verbrennungsmotor eines Fahrzeugs mit einer abschaltbaren Wasserpumpe |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60223188T2 (de) | 2001-03-06 | 2008-02-14 | Calsonic Kansei Corp. | Kühlungssystem für eine wassergekühlte Brennkraftmaschine und Steuerverfahren dafür |
| US7141588B2 (en) * | 2002-02-25 | 2006-11-28 | Pfizer, Inc. | N-aryl-2-oxazolidinone-5-carboxamides and their derivatives |
| EP2184494A3 (de) * | 2008-11-05 | 2016-09-21 | Magna Powertrain Inc. | Wasserpumpenanordnung mit Ein-Aus-Schaltung auf Anfrage |
| JP6235394B2 (ja) * | 2014-03-28 | 2017-11-22 | 本田技研工業株式会社 | 過給機付きエンジン |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631121A1 (de) | 1976-07-10 | 1978-01-12 | Daimler Benz Ag | Fluessigkeitsgekuehlte brennkraftmaschine |
| JPS57193716A (en) | 1981-05-22 | 1982-11-29 | Mazda Motor Corp | Cooler for engine |
| DE4116496A1 (de) | 1990-05-30 | 1991-12-05 | Volkswagen Ag | Sicherheitsvorrichtung fuer eine durch ein umlaufendes kuehlmittel gekuehlte brennkraftmaschine |
| DE4038695A1 (de) | 1990-12-05 | 1992-06-11 | Bayerische Motoren Werke Ag | Antriebsanordnung fuer ein hilfsaggregat einer brennkraftmaschine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193713A (en) * | 1981-05-22 | 1982-11-29 | Mazda Motor Corp | Controller for water pump of engine |
| DE19538633A1 (de) * | 1995-10-17 | 1997-04-24 | Schwaebische Huettenwerke Gmbh | Pumpenaggregat |
-
2000
- 2000-04-13 DE DE50010786T patent/DE50010786D1/de not_active Expired - Lifetime
- 2000-04-13 AT AT04011758T patent/ATE299990T1/de not_active IP Right Cessation
- 2000-04-13 AT AT00890119T patent/ATE310899T1/de not_active IP Right Cessation
- 2000-04-13 DE DE50011670T patent/DE50011670D1/de not_active Expired - Lifetime
- 2000-04-13 ES ES04011758T patent/ES2242949T3/es not_active Expired - Lifetime
- 2000-04-13 EP EP00890119A patent/EP1046798B1/de not_active Expired - Lifetime
- 2000-04-13 EP EP04011758A patent/EP1447540B1/de not_active Expired - Lifetime
- 2000-04-19 US US09/552,580 patent/US6318307B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631121A1 (de) | 1976-07-10 | 1978-01-12 | Daimler Benz Ag | Fluessigkeitsgekuehlte brennkraftmaschine |
| JPS57193716A (en) | 1981-05-22 | 1982-11-29 | Mazda Motor Corp | Cooler for engine |
| DE4116496A1 (de) | 1990-05-30 | 1991-12-05 | Volkswagen Ag | Sicherheitsvorrichtung fuer eine durch ein umlaufendes kuehlmittel gekuehlte brennkraftmaschine |
| DE4038695A1 (de) | 1990-12-05 | 1992-06-11 | Bayerische Motoren Werke Ag | Antriebsanordnung fuer ein hilfsaggregat einer brennkraftmaschine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1529936A1 (de) * | 2003-11-03 | 2005-05-11 | Bayerische Motoren Werke Aktiengesellschaft | Kühlanlage für einen Verbrennungsmotor eines Fahrzeugs mit einer abschaltbaren Wasserpumpe |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50011670D1 (de) | 2005-12-29 |
| US6318307B1 (en) | 2001-11-20 |
| EP1447540A1 (de) | 2004-08-18 |
| DE50010786D1 (de) | 2005-08-25 |
| EP1447540B1 (de) | 2005-07-20 |
| ATE299990T1 (de) | 2005-08-15 |
| EP1046798A3 (de) | 2001-12-12 |
| ES2242949T3 (es) | 2005-11-16 |
| EP1046798B1 (de) | 2005-11-23 |
| ATE310899T1 (de) | 2005-12-15 |
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