EP0593928A1 - Heat-storing system for cold start of combustion motors - Google Patents
Heat-storing system for cold start of combustion motors Download PDFInfo
- Publication number
- EP0593928A1 EP0593928A1 EP93115336A EP93115336A EP0593928A1 EP 0593928 A1 EP0593928 A1 EP 0593928A1 EP 93115336 A EP93115336 A EP 93115336A EP 93115336 A EP93115336 A EP 93115336A EP 0593928 A1 EP0593928 A1 EP 0593928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- hot water
- internal combustion
- water tank
- heat storage
- 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 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000005338 heat storage Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
-
- 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
- F01P11/14—Indicating devices; Other safety devices
- F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
Definitions
- the invention relates to a heat storage system for the cold start of internal combustion engines, with at least one heat store, which is connected to the engine cooling circuit during the cold start.
- a heat storage system of this type is known from the magazine BWK, B and 43 (1991) No. 6, June, pages 333/37. Then a latent heat store is connected in series with the heating heat exchanger in the heating circuit of a vehicle. When the internal combustion engine is operating, the heated cooling water flows through the latent heat store, so that when the internal combustion engine is switched off, thermal energy is stored in the latent heat store in accordance with the dimensions. At the next cold start, the heat is released with a short-term output, which means that the engine can be heated up within a few seconds to such an extent that emissions of pollutants can already be reduced in the starting phase. In addition, the vehicle's heating system is brought up to operating temperature more quickly, which means, for example, that the windshield can be cleared of fog or ice more quickly than before.
- latent heat storage devices are complicated in structure and for the design for high storage capacities, e.g. unsuitable for commercial vehicles and large machines.
- the invention has for its object to provide a heat storage system of the type mentioned while maintaining the efficiency, which is as simple as possible to manufacture and is suitable for high storage capacities.
- the heat store for example a latent heat store
- the heat store can be made significantly smaller in volume, thereby saving both costs and costs Stability of the latent heat storage can be improved after part of the heat capacity is taken over by the hot water storage.
- the hot water tank can hold a larger amount of water than the latent heat store and at the same time offer a higher heat output.
- hot water storage tanks and other heat storage devices are arranged in such a way that when the stored heat is used, the heat from the hot water storage device is primarily used in a first phase and from the other heat storage devices in a second phase.
- the lower-temperature storage medium from the hot water tank is thus used for the first temperature increase in the engine block, while a further temperature increase is used due to the water from the latent heat storage which is at a higher temperature level.
- the hot water tank can thus take up a large part of the cold water from the engine block without having to let it flow through the other tanks.
- this can be realized in that the hot water tank is connected upstream of the other heat stores, so that when a circulation pump is switched on, the flow of the heat storage system is initially supplied with water from the hot water tank, while the water from the latent heat store supplies the hot water tank flooded.
- This construction has the advantage that the two storage systems can be integrated in a compact unit that is easy and better heat insulated.
- the heat stores are connected in parallel to one another, the heat stores being controllable individually and as required by means of controllable valves.
- the exchange of the cooling water from the internal combustion engine with the warm water from the storage is preferably regulated depending on the flow and return temperatures of the heat storage system.
- the exchange is initiated by a manually operated start switch before starting the engine.
- the heat accumulators can also be connected to a heating circuit or to the heating and engine cooling circuit via controllable valves.
- the hot water tank and the latent heat store are highly vacuum insulated, the hot water tank being designed only as a double-walled container.
- the heat capacity can be increased while maintaining the heat accumulator volume.
- An internal combustion engine 10 is penetrated by a cooling water circuit 13 containing a cooler 11 and a water pump 12.
- a heat transfer circuit 14 is provided, via which and a heat exchanger 15 the waste heat of the internal combustion engine 10, e.g. can be used for heating purposes.
- a further parallel branch 16 with a hot water tank 17 and a latent heat store 18 is provided in parallel.
- These heat stores 17, 18 are each assigned a controllable valve V1 or V2.
- the heat exchanger 15 is also assigned a valve V3.
- the valves V1, V2, V3 are controlled by means of a controller 21 depending on the temperature T1 in the lead 23 of the heat accumulator 17, 18 and the temperature T2 in the heating flow 20 regulated.
- the internal combustion engine 10 In normal operation of the internal combustion engine 10, it is cooled via the cooling circuit 13.
- the heated cooling water is used simultaneously to heat the hot water tank 17 and the latent heat storage 18, which can be done under control of the heat storage inlet temperature T 1 and the heating flow temperature T 2.
- the valves V 1 and V 2 are always opened when the circulation pump 19 is switched on when the water temperature from the internal combustion engine 10 exceeds a certain value or is higher than the heat storage inlet temperature 1.
- the heat stores 17 and 18 loaded in this way store the thermal energy when the internal combustion engine 10 is at a standstill.
- a start switch 22 is actuated, which activates the control 21.
- the temperature T2 of the cooling water is first measured on the machine. If it exceeds a predetermined value, e.g. 0 ° or 10 ° C, the starter of the internal combustion engine 10 is then actuated immediately.
- the circulation pump 19 is switched on via the control 21 and the valve V 1 for the hot water tank 17 is opened, whereby the heat transfer medium is guided from the hot water tank to the internal combustion engine 10.
- T1 in the heat storage flow 23
- T2 which signals the control 21 with the result that the valve V1 is closed and the valve V2 is opened so that the heat transfer medium from the latent heat storage 18 enters the combustion machine 10.
- the cold water from the engine remains parked in the hot water tank 17, thus avoiding unnecessary heating of the cold water.
- the termination of the water flow is controlled according to the temperature T1 and / or T2 by the controller 21. Thereafter, either the driver is signaled by an optical and / or acoustic signal that he can start the engine, or the starting process is initiated automatically by the control 21.
- the arrangement and regulation described above is an example of several possibilities.
- the control process for preheating the internal combustion engine 10 can take place as a function of other temperatures, the temperature difference between the forward and return flow, etc. It is also possible not to open and close the valves V1 and V2 one after the other, but simultaneously. Furthermore, the concept for simultaneous or alternate preheating of the heat exchanger 15 can be designed.
- An arrangement is also possible in which the heat accumulators 17, 18 are not connected in parallel, but rather in series, the hot water accumulator being located on the flow side of the heat accumulator system. The reverse order is also possible.
- Embodiments are also possible in which a latent heat store and a plurality of hot water stores or vice versa are provided.
- an auxiliary heater 24 can be provided in the heat storage system circuit 20, 16, 23.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Central Heating Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Wärmespeichersystem für den Kaltstart Von Verbrennungsmaschinen, mit mindestens einem Wärmespeicher, der beim Kaltstart dem Motorkühlkreislauf zugeschaltet wird.The invention relates to a heat storage system for the cold start of internal combustion engines, with at least one heat store, which is connected to the engine cooling circuit during the cold start.
Ein Wärmespeichersystem dieser Art ist aus der Zeitschrift BWK, B and 43 (1991) Nr. 6, Juni, Seiten 333/37 bekannt. Danach ist in dem Heizkreislauf eines Fahrzeuges ein Latentwärmespeicher in Reihe mit dem Heizungswärmetauscher geschaltet. Bei Betrieb der Verbrennungsmaschine strömt das aufgeheizte Kühlwasser durch den Latentwärmespeicher, so daß beim Abschalten der Verbrennungsmaschine Wärmeenergie entsprechend der Dimensionierung im Latentwärmespeicher gespeichert wird. Beim nächsten Kaltstart wird die Wärme mit einer kurzfristigen Leistung freigesetzt, wodurch der Motor innerhalb von ein paar Sekunden so weit aufgeheizt werden kann, daß die Emissionen von Schadstoffen bereits in der Startphase reduziert werden können. Außerdem wird das Heizungssystem des Fahrzeugs schneller auf Betriebstemperatur gebracht, wodurch beispielsweise die Windschutzscheibe schneller als bisher von Beschlag oder Eis befreit werden kann.A heat storage system of this type is known from the magazine BWK, B and 43 (1991) No. 6, June, pages 333/37. Then a latent heat store is connected in series with the heating heat exchanger in the heating circuit of a vehicle. When the internal combustion engine is operating, the heated cooling water flows through the latent heat store, so that when the internal combustion engine is switched off, thermal energy is stored in the latent heat store in accordance with the dimensions. At the next cold start, the heat is released with a short-term output, which means that the engine can be heated up within a few seconds to such an extent that emissions of pollutants can already be reduced in the starting phase. In addition, the vehicle's heating system is brought up to operating temperature more quickly, which means, for example, that the windshield can be cleared of fog or ice more quickly than before.
Latentwärmespeicher sind jedoch kompliziert im Aufbau und für die Auslegung für hohe Speicherkapazitäten, z.B. für Nutzfahrzeuge und Großmaschinen, ungeeignet.However, latent heat storage devices are complicated in structure and for the design for high storage capacities, e.g. unsuitable for commercial vehicles and large machines.
Der Erfindung liegt die Aufgabe zugrunde, ein Wärmespeichersystem der eingangs genannten Art unter Beibehaltung des Wirkungsgrades zu schaffen, das fertigungstechnisch möglichst einfach herzustellen ist und für hohe Speicherkapazitäten geeignet ist.The invention has for its object to provide a heat storage system of the type mentioned while maintaining the efficiency, which is as simple as possible to manufacture and is suitable for high storage capacities.
Die Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved with the features of claim 1.
Durch die Verwendung eines oder mehrerer zusätzlicher Warmwasserspeicher kann der oder die Wärmespeicher, z.B. ein Latentwärmespeicher im Volumen wesentlich kleiner ausgestaltet werden, wodurch sowohl Kosten eingespart und die Stabilität des Latentwärmespeichers verbessert werden kann, nachdem ein Teil der Wärmekapazität vom Warmwasserspeicher übernommen wird. Bei gleicher Außenabmessung kann der Warmwasserspeicher eine größere Wassermenge aufnehmen, als der Latentwärmespeicher und zugleich eine höhere Wärmeleistung bieten.Through the use of one or more additional hot water tanks, the heat store (s), for example a latent heat store, can be made significantly smaller in volume, thereby saving both costs and costs Stability of the latent heat storage can be improved after part of the heat capacity is taken over by the hot water storage. With the same external dimensions, the hot water tank can hold a larger amount of water than the latent heat store and at the same time offer a higher heat output.
Gemäß einer weiteren Ausgestaltung der Erfindung sind Warmwasserspeicher und übrige Wärmespeicher so angeordnet, daß bei Nutzung der gespeicherten Wärme in einer ersten Phase vorwiegend die Wärme aus dem Warmwasserspeicher und in einer zweiten Phase vorwiegend aus den übrigen Wärmespeichern genutzt werden. Damit wird das unter geringerer Temperatur befindliche Speichermedium aus dem Warmwasserspeicher zur ersten Temperaturanhebung im Motorblock genutzt, während eine weitere Temperaturanhebung durch das auf höherem Temperaturniveau stehende Wasser aus dem Latentwärmespeicher benutzt wird. Der Warmwasserspeicher kann dadurch einen Großteil des kalten Wassers aus dem Motorblock aufnehmen, ohne es durch die übrigen Speicher strömen lassen zu müssen.According to a further embodiment of the invention, hot water storage tanks and other heat storage devices are arranged in such a way that when the stored heat is used, the heat from the hot water storage device is primarily used in a first phase and from the other heat storage devices in a second phase. The lower-temperature storage medium from the hot water tank is thus used for the first temperature increase in the engine block, while a further temperature increase is used due to the water from the latent heat storage which is at a higher temperature level. The hot water tank can thus take up a large part of the cold water from the engine block without having to let it flow through the other tanks.
In einem ersten Ausführungsbeispiel kann das dadurch realisiert werden, dadurch realisiert werden, daß der Warmwasserspeicher den übrigen Wärmespeichern vorgeschaltet wird, so daß beim Einschalten einer Umwälzpumpe der Vorlauf des Wärmespeichersystems zunächst mit Wasser aus dem Warmwasserspeicher versorgt wird, während das Wasser aus dem Latentwärmespeicher den Warmwasserspeicher durchflutet. Diese Konstruktion hat den Vorteil, daß die beiden Speichersysteme in einer kompakten Baueinheit integriert sein können, die einfach und besser wärmeisolierbar ist.In a first embodiment, this can be realized in that the hot water tank is connected upstream of the other heat stores, so that when a circulation pump is switched on, the flow of the heat storage system is initially supplied with water from the hot water tank, while the water from the latent heat store supplies the hot water tank flooded. This construction has the advantage that the two storage systems can be integrated in a compact unit that is easy and better heat insulated.
Gemäß einer weiteren Ausgestaltung der Erfindung sind die Wärmespeicher parallel zueinander angeschlossen, wobei mittels steuerbaren Ventilen die Wärmespeicher individuell und nach Bedarf angesteuert werden können. Der Vorteil dieser Lösung liegt darin, daß der erste Speicher den wesentlichen Teil des kalten Wassers vom Motor aufnehmen und parken kann, um damit eine unnötige Erwärmung desselben zu vermeiden.According to a further embodiment of the invention, the heat stores are connected in parallel to one another, the heat stores being controllable individually and as required by means of controllable valves. The advantage of this solution is that the first store can take up and park most of the cold water from the engine in order to avoid unnecessary heating of the engine.
Der Austausch des Kühlwassers aus der Verbrennungsmaschine mit dem warmen Wasser aus dem Speicher wird vorzugsweise in Abhängigkeit von den Vor- und Rücklauftemperaturen des Wärmespeichersystemes geregelt. Der Austausch wird durch einen von Hand bedienbaren Startschalter vor dem Start des Motors eingeleitet.The exchange of the cooling water from the internal combustion engine with the warm water from the storage is preferably regulated depending on the flow and return temperatures of the heat storage system. The exchange is initiated by a manually operated start switch before starting the engine.
Gemäß einer weiteren Ausgestaltung der Erfindung sind die Wärmespeicher ebenfalls über steuerbare Ventile an einen Heizungskreislauf oder an den Heizungs- und Motorkühlkreislauf anschließbar.According to a further embodiment of the invention, the heat accumulators can also be connected to a heating circuit or to the heating and engine cooling circuit via controllable valves.
Der Warmwasserspeicher und der Latentwärmespeicher sind hochvakuumisoliert, wobei der Warmwasserspeicher lediglich als doppelwandiger Behälter ausgebildetist.The hot water tank and the latent heat store are highly vacuum insulated, the hot water tank being designed only as a double-walled container.
Mittels einer Standheizung im Wasserkreislauf des Wärmespeichers kann die Wärmekapazität unter Beibehaltung der Wärmespeichervolumen angehoben werden.By means of an auxiliary heater in the water circuit of the heat accumulator, the heat capacity can be increased while maintaining the heat accumulator volume.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt.In the drawing, an embodiment of the invention is shown schematically.
Eine Verbrennungsmaschine 10 ist von einem einen Kühler 11 und eine Wasserpumpe 12 enthaltenden Kühlwasserkreislauf 13 durchsetzt. Parallel zum Kühlwasserkreislauf 13 ist ein Wärmeträger-Kreislauf 14 vorgesehen, über den und einen Wärmetauscher 15 die Abwärme der Verbrennungsmaschine 10, z.B. für Heizzwecke, genutzt werden kann.An
Zur Vorwärmung der Verbrennungsmaschine 10 vor einem Kaltstart ist ein weiterer Parallelzweig 16 mit einem Warmwasserbehälter 17 und einem Latentwärmespeicher 18 in Parallelschaltung vorgesehen. Diesen Wärmespeichern 17, 18 ist je ein regelbares Ventil V₁ bzw. V₂ zugeordnet. Ferner ist dem Wärmetauscher 15 ebenfalls ein Ventil V₃ zugeordnet. Für den notwendigen Wasserkreislauf sorgt eine Umwälzpumpe 19, die im Heizungsvorlauf 20 in Reihenschaltung zur Parallelschaltung aus Wärmetauscher 15 und Wärmespeichern 17, 18 angeordnet ist. Die Ventile V₁, V₂, V₃ werden mittels einer Regelung 21 in Abhängigkeit der Temperatur T₁ im Vorlauf 23 der Wärmespeicher 17, 18 und der Temperatur T₂ im Heizungsvorlauf 20 geregelt.To preheat the
Im normalen Betrieb der Verbrennungsmaschine 10 wird diese über den Kühlkreislauf 13 gekühlt. Das aufgeheizte Kühlwasser wird gleichzeitig genutzt, um den Warmwasserspeicher 17 und den Latentwärmespeicher 18 aufzuheizen, was unter Kontrolle der Wärmespeichervorlauftemperatur T₁ und der Heizungsvorlauftemperatur T₂ erfolgen kann. Über die Regelung 21 werden unter Umständen unter Einschaltung der Umwälzpumpe 19 die Ventile V₁ und V₂ immer dann gehöffnet, wenn die Wassertemperatur aus der Verbrennungsmaschine 10 einen bestimmten Wert überschreitet oder höher ist als die Wärmespeichervorlauftemperatur 1.In normal operation of the
Die auf diese Weise beladenen Wärmespeicher 17 und 18 speichern die Wärmeenergie während des Stillstandes der Verbrennungsmaschine 10. Durch die Aufteilung der Speicherkapazität auf einen vakuumisolierten Warmwasserspeicher 17 und den Latentwärmespeicher 18 ist es möglich, mit einem Latentwärmespeicher geringerer Dimensionierung auszukommen. Dieses ist insbesondere bei Großmaschinen, wie sie beispielsweise bei Nutzfahrzeugen verwendet werden, von großer Bedeutung, indem der Warmwasserspeicher 17 gleichzeitig bei gleicher Dimensionierung ein höheres Wasservolumen aufnehmen kann. Auf die Weise läßt sich die Wassermenge innerhalb der Verbrennungsmaschine 10 in geringerem Außenvolumen der Wärmespeicher 17, 18 unterbringen, als es bei der Verwendung von Latentwärmetauschern alleine möglich wäre.The heat stores 17 and 18 loaded in this way store the thermal energy when the
Wenn die Verbrennungsmaschine 10 erneut gestartet werden soll, wird ein Startschalter 22 betätigt, der die Regelung 21 aktiviert. Dabei wird zunächst die Temperatur T₂ des Kühlwassers an der Maschine gemessen. Übersteigt diese einen vorbestimmten Wert, z.B. 0° oder 10°C, wird sofort anschließend der Anlasser der Verbrennungsmaschine 10 betätigt.If the
Unterschreitet die Temperatur T₂ den vorbestimmten Wert, dann wird über die Regelung 21 die Umlaufpumpe 19 eingeschaltet und das Ventil V₁ für den Warmwasserspeicher 17 geöffnet, wodurch der Wärmeträger aus dem Warmwasserspeicher zur Verbrennungsmaschine 10 geführt wird. Nach dem Austausch des Inhaltes des Warmwasserspeichers 17 durch kühles Wasser aus der Verbrennungsmaschine 10 sinkt die Temperatur T₁ im Wärmespeichervorlauf 23 auf einen Wert > = T₂, was die Regelung 21 signalisiert mit der Folge, daß das Ventil V₁ geschlossen und das Ventil V₂ geöffnet wird, damit nun der Wärmeträger aus dem Latentwärmespeicher 18 in die Verbrennungsmaschine 10 gelangt. Währenddessen bleibt das Kaltwasser aus dem Motor im Warmwasserspeicher 17 geparkt, womit eine unnötige Erwärmung des Kaltwassers vermieden wird. Die Beendigung der Wasserdurchflutung wird entsprechend der Temperatur T₁ und/oder T₂ von der Regelung 21 gesteuert. Danach wird entweder dem Fahrer durch optisches und/oder akustisches Signal signalisiert, daß er den Motor anlassen kann, oder der Anlaßvorgang wird automatisch durch die Regelung 21 eingeleitet.If the temperature T₂ falls below the predetermined value, then the
Die vorstehend beschriebene Anordnung und Regelung ist ein Beispiel von mehreren Möglichkeiten. Der Regelungsvorgang für die Vorwärmung der Verbrennungsmaschine 10 kann in Abhängigkeit von anderen Temperaturen, von der Temperaturdifferenz zwischen Vor- und Rücklauf, etc. geschehen. Es ist ferner möglich, die Ventile V₁ und V₂ nicht nacheinander, sondern gleichzeitig zu öffnen und zu schließen. Ferner kann das Konzept zur gleichzeitigen oder wechselweisen Vorwärmung des Wärmetauschers 15 ausgelegt werden. Es ist auch eine Anordnung möglich, bei der die Wärmespeicher 17, 18 nicht in Parallelschaltung, sondern hintereinander, angeschlossen sind, wobei der Warmwasserspeicher sich vorlaufseitig des Wärmespeichersystems befindet. Die umgekehrte Reihenfolge ist aber auch möglich. Es sind auch Ausgestaltungen möglich, bei denen ein Latentwärmespeicher und mehrere Warmwasserspeicher oder umgekehrt vorgesehen werden.The arrangement and regulation described above is an example of several possibilities. The control process for preheating the
Bei Bedarf kann eine Standheizung 24 im Wärmespeichersystem-Kreislauf 20, 16, 23 vorgesehen werden.If required, an
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4235830 | 1992-10-23 | ||
| DE4235830A DE4235830A1 (en) | 1992-10-23 | 1992-10-23 | Heat storage system for the cold start of internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0593928A1 true EP0593928A1 (en) | 1994-04-27 |
| EP0593928B1 EP0593928B1 (en) | 1995-12-27 |
Family
ID=6471195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93115336A Expired - Lifetime EP0593928B1 (en) | 1992-10-23 | 1993-09-23 | Heat-storing system for cold start of combustion motors |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0593928B1 (en) |
| AT (1) | ATE132233T1 (en) |
| DE (2) | DE4235830A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996031694A1 (en) * | 1995-04-05 | 1996-10-10 | Schatz Thermo System Gmbh | Method and switching arrangement for operating heat accumulators, in particular for sensible heat |
| EP1081779A1 (en) * | 1999-09-03 | 2001-03-07 | MERCK PATENT GmbH | Latent heat accumulator for fuel cell systems |
| WO2002054520A1 (en) * | 2000-12-29 | 2002-07-11 | Siemens Aktiengesellschaft | Fuel cell system, which is provided for mobile use and which has a latent heat storage, and method for thermally insulating the same |
| EP1199206A3 (en) * | 2000-10-16 | 2005-04-13 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method in which the engine is preheated before start |
| EP2441944A3 (en) * | 2010-10-13 | 2018-01-03 | Liebherr-Machines Bulle SA | Mobile work machine |
| EP3591200A1 (en) * | 2006-03-15 | 2020-01-08 | MAN Truck & Bus SE | Vehicle or stationary power station with a charged combustion engine as a drive source |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4402215A1 (en) * | 1993-07-12 | 1995-01-19 | Man Nutzfahrzeuge Ag | Process for improving the cold start behavior of internal combustion engines |
| DE19512821A1 (en) * | 1994-04-27 | 1995-11-02 | Schatz Thermo System Gmbh | Method and circuit arrangement for operating heat stores for sensible heat |
| DE4431351A1 (en) * | 1994-09-02 | 1996-03-07 | Bayerische Motoren Werke Ag | Vehicle with IC engine, transmission and heat store |
| SE510089C2 (en) * | 1995-02-14 | 1999-04-19 | Beta Maskin Ab | Liquid-cooled internal combustion engine with insulated storage tank for coolant storage |
| DE19535027A1 (en) * | 1995-09-19 | 1997-03-27 | Schatz Thermo System Gmbh | Automobile storage heater operating system for cold starting of engine |
| DE19521292A1 (en) * | 1995-06-10 | 1996-12-12 | Opel Adam Ag | Heat-transmission fluid circulation system for IC engine with heat storage |
| WO1997019266A1 (en) * | 1995-11-23 | 1997-05-29 | Beta Maskin Ab | Devices and methods to an internal combustion engine and a device for thermal insulation intended to be used therewith |
| DE19615506A1 (en) * | 1996-04-19 | 1997-10-23 | Wilo Gmbh | Latent heat store for motor vehicle IC engine cooling water circulation |
| DE19616586A1 (en) * | 1996-04-25 | 1997-10-30 | Schatz Thermo System Gmbh | Method of operating heat store in IC engine cooling circuit esp. in motor vehicle and heating engine at cold start |
| DE19621674C2 (en) * | 1996-05-30 | 2003-11-27 | Bayerische Motoren Werke Ag | Coolant circuit of an internal combustion engine |
| DE19621675A1 (en) * | 1996-05-30 | 1997-12-04 | Bayerische Motoren Werke Ag | Combustion engine coolant circuit |
| DE102005040052B4 (en) * | 2005-06-10 | 2014-03-20 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle with a reformer system with a cooling device |
| DE102008007560A1 (en) | 2008-02-05 | 2009-03-05 | Daimler Ag | Cooling circuit for internal-combustion engine of motor vehicle, has thermostatic valve connecting feed line with bypass line depending on temperature of coolant, and latent-heat storage system connected to bypass line |
| FR3051894B1 (en) * | 2016-05-30 | 2019-04-26 | Liebherr Aerospace Toulouse Sas | METHOD AND APPARATUS FOR COOLING AT LEAST ONE HOT LOAD ON BOARD A VEHICLE SUCH AS A PARTIALLY REVERSIBLE FLUID LOOP AIRCRAFT |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6013980A (en) * | 1983-07-06 | 1985-01-24 | Mitsubishi Heavy Ind Ltd | Warm-up device for diesel engine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1576216A1 (en) * | 1967-02-25 | 1970-04-09 | Daimler Benz Ag | Device for preheating the internal combustion engine of motor vehicles |
| DE3245026C2 (en) * | 1982-12-06 | 1994-11-17 | Schatz Oskar | Method and heat exchanger arrangement for temperature control in motor vehicles |
| DE3300946A1 (en) * | 1983-01-13 | 1984-07-19 | Erich Dr. 4320 Hattingen Zimmermann | Pre-heating of intermittently working combustion engines by means of stored waste heat |
| SU1175215A1 (en) * | 1984-01-23 | 1986-02-15 | Кировоградское Автотранспортное Предприятие N10021 | Device for starting internal combustion engine |
| DE3718697C2 (en) * | 1986-06-14 | 1997-06-19 | Volkswagen Ag | Cooling arrangement for an internal combustion engine of a vehicle |
| DE9000628U1 (en) * | 1990-01-22 | 1990-03-29 | Patett, Klaus, Dipl.-Ing., 3320 Salzgitter | Water cooling device for a water-cooled internal combustion engine |
| DE4036392A1 (en) * | 1990-11-15 | 1992-05-21 | Behr Gmbh & Co | Latent heat storage unit - fits between motor vehicle engine and heating body in coolant circuit |
| DE4105199A1 (en) * | 1991-02-20 | 1992-08-27 | Bayerische Motoren Werke Ag | Cooling circuit for combustion engine - uses latent heat storage unit |
-
1992
- 1992-10-23 DE DE4235830A patent/DE4235830A1/en not_active Withdrawn
-
1993
- 1993-09-23 EP EP93115336A patent/EP0593928B1/en not_active Expired - Lifetime
- 1993-09-23 AT AT93115336T patent/ATE132233T1/en not_active IP Right Cessation
- 1993-09-23 DE DE59301251T patent/DE59301251D1/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6013980A (en) * | 1983-07-06 | 1985-01-24 | Mitsubishi Heavy Ind Ltd | Warm-up device for diesel engine |
Non-Patent Citations (2)
| Title |
|---|
| 0. SCHATZ: "Latentwärmespeicher für Kaltstartverbesserung von Kraftfahrzeugen", BWK BRENNSTOFF WARME KRAFT, vol. 43, no. 6, June 1991 (1991-06-01), DUSSELDORF DE, pages 333 - 337, XP000226042 * |
| PATENT ABSTRACTS OF JAPAN vol. 9, no. 132 (M - 385)<1855> 7 June 1985 (1985-06-07) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996031694A1 (en) * | 1995-04-05 | 1996-10-10 | Schatz Thermo System Gmbh | Method and switching arrangement for operating heat accumulators, in particular for sensible heat |
| US5765511A (en) * | 1995-04-05 | 1998-06-16 | Schatz Thermo System Gmbh | Method and switching arrangement for operating heat accumulators, in particular for sensible heat |
| EP1081779A1 (en) * | 1999-09-03 | 2001-03-07 | MERCK PATENT GmbH | Latent heat accumulator for fuel cell systems |
| EP1199206A3 (en) * | 2000-10-16 | 2005-04-13 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method in which the engine is preheated before start |
| WO2002054520A1 (en) * | 2000-12-29 | 2002-07-11 | Siemens Aktiengesellschaft | Fuel cell system, which is provided for mobile use and which has a latent heat storage, and method for thermally insulating the same |
| EP3591200A1 (en) * | 2006-03-15 | 2020-01-08 | MAN Truck & Bus SE | Vehicle or stationary power station with a charged combustion engine as a drive source |
| EP2441944A3 (en) * | 2010-10-13 | 2018-01-03 | Liebherr-Machines Bulle SA | Mobile work machine |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE132233T1 (en) | 1996-01-15 |
| DE59301251D1 (en) | 1996-02-08 |
| EP0593928B1 (en) | 1995-12-27 |
| DE4235830A1 (en) | 1994-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0593928B1 (en) | Heat-storing system for cold start of combustion motors | |
| DE4136910C2 (en) | Method for quickly setting the operating temperature of a mass by means of a flowable or free-flowing heat transfer medium, in particular for rapid heating of a motor vehicle engine during a cold start | |
| DE4402215A1 (en) | Process for improving the cold start behavior of internal combustion engines | |
| DE102011119587B4 (en) | METHOD FOR OPERATING A VEHICLE | |
| DE2640243A1 (en) | HYDRID FUEL SYSTEM FOR COMBUSTION MACHINERY | |
| DE10161851A1 (en) | Cooling circuit of a liquid-cooled internal combustion engine | |
| DE112011100535B4 (en) | Heat storage device for a vehicle | |
| DE3047672A1 (en) | COOLING DEVICE FOR COOLING AN INTERNAL COMBUSTION ENGINE AND THE CHARGING AIR | |
| DE3809136C2 (en) | Device for evaporative cooling of an internal combustion engine and for operating a heating heat exchanger by the coolant | |
| DE19818030C2 (en) | Method and device for operating a coolant circuit of an internal combustion engine | |
| EP1700026A2 (en) | System and method for vaporizing a cryogenically stored fuel | |
| DE3201443A1 (en) | Drive unit, especially for motor vehicles | |
| DE3245026A1 (en) | Method and heat-exchanger arrangement for controlling the temperature in motor vehicles with an internal combustion engine | |
| DE102009058575A1 (en) | Cooling circuit of an internal combustion engine and a working method for operating a cooling circuit | |
| DE102017211303A1 (en) | Heat storage arrangement for a vehicle battery and method for their operation | |
| DE3638471C2 (en) | Vehicle heating | |
| DE3341097A1 (en) | Internal combustion engine for vehicles, in particular passenger vehicles | |
| DE102008013655A1 (en) | Latent heat accumulator operating method for oil circulation system of internal-combustion engine in motor vehicle, involves supplying oil heated by accumulator to engine and returning oil to engine based on temperature of withdrawn oil | |
| WO2003106825A1 (en) | Method for operating a liquid-cooled internal combustion engine | |
| EP0340621B1 (en) | Vehicle heating | |
| DE19525661C2 (en) | Latent heat storage | |
| DE102015208100A1 (en) | Motor vehicle with heat accumulator and method for operating a heat accumulator in a motor vehicle | |
| DE3708192A1 (en) | Spring or damper device for a vehicle with operating medium flowing through restrictors | |
| DE1805862A1 (en) | Device on internal combustion engines to avoid cold starts | |
| DE2144501C3 (en) | Hot water circulation heating with automatic temperature control for rooms in vehicles with internal combustion engines, preferably rail vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19940822 |
|
| 17Q | First examination report despatched |
Effective date: 19950105 |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19951227 |
|
| REF | Corresponds to: |
Ref document number: 132233 Country of ref document: AT Date of ref document: 19960115 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59301251 Country of ref document: DE Date of ref document: 19960208 |
|
| ET | Fr: translation filed | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19951227 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19960819 Year of fee payment: 4 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19960821 Year of fee payment: 4 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19960827 Year of fee payment: 4 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19960923 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970924 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19970930 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980401 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19980401 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980603 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 93115336.5 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050923 |