EP2567083B1 - Preheating system for preheating large diesel engines - Google Patents
Preheating system for preheating large diesel engines Download PDFInfo
- Publication number
- EP2567083B1 EP2567083B1 EP11717999.4A EP11717999A EP2567083B1 EP 2567083 B1 EP2567083 B1 EP 2567083B1 EP 11717999 A EP11717999 A EP 11717999A EP 2567083 B1 EP2567083 B1 EP 2567083B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- low
- temperature circuit
- preheating
- circuit
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 description 16
- 238000004891 communication Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010792 warming 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
- 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
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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
- F01P2037/00—Controlling
- F01P2037/02—Controlling starting
-
- 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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/18—Heater
Definitions
- the invention relates to a preheating plant for heating a diesel engine, which has a high-temperature circuit and a low-temperature circuit, with a circulation pump and a preheating unit for circulating and heating a heat exchange fluid, wherein an inlet, in which a feed branch for connection of the high-temperature circuit and the low-temperature circuit is arranged, and a return are provided, in which a return branch for connection of the high-temperature circuit and the low-temperature circuit is arranged.
- Such a preheating circuit is known from practice. Diesel engines, and in particular large diesel engines, which are used in locomotives or railcars of a rail vehicle can not be started when cold. For this reason, in vehicles with such a diesel engine, a preheating system is provided which is driven electrically or by means of fuel. In order to introduce the required heat into the cold diesel engine, the cooling liquid of the diesel engine is heated, wherein the cooling liquid is circulated through a preheating circuit. The cooling liquid, which in the later diesel operation ensures the cooling of the diesel engine, thus serves as a warming medium in the cold system.
- the preheating plant has a high and low temperature circuit, wherein a circulating pump and a preheating unit are provided for circulating and heating a heat exchange liquid.
- a circulating pump and a preheating unit are provided for circulating and heating a heat exchange liquid.
- an inlet is disclosed, with which the high-temperature circuit and the low-temperature circuit can be connected.
- the high temperature circuit is mainly used to cool the cylinder heads and cylinder liners.
- engine oil coolers, exhaust gas recirculation systems and other components can be used via the high temperature circuit be cooled.
- the low-temperature circuit serves to cool the combustion air, which was previously heated by compression in a turbocharger. The cooling of the combustion air causes the combustion process of the diesel engine, a higher power output.
- further assemblies can be integrated in the low-temperature circuit. The reason for the formation of two independent cooling circuits in a diesel engine can be seen in the different operating temperatures required for their particular application.
- both the high-temperature circuit and the low-temperature circuit are each equipped with their own radiator, which allows the release of heat during operation of the diesel engine.
- both cooling circuits have radiator thermostats connected to a bypass of the respective radiator and to the radiator itself. When cold, each radiator thermostat opens to the bypass, so that when preheating the cooling water is not circulated through the respective radiator. However, when the cooling water reaches an operating temperature previously set on the radiator thermostat, the radiator thermostat opens to the radiator and closes the bypass, so that the circulation then takes place only via the respective radiator. Since the operating temperatures of the high-temperature circuit and the low-temperature circuit are different, the respective radiator thermostats also open the circulation to the radiator at different temperatures.
- both the high-temperature circuit and the low-temperature circuit are connected to an inlet or a return of a preheating system, so that a preheating circuit is formed in which a heat exchange fluid circulates over the high and low temperature sections of the diesel engine becomes.
- the preheated heat exchange fluid is thus passed over both cooling circuits.
- both radiator thermostats are only open towards the bypass, so that the preheated heat exchange fluid is not conducted via the radiator. Since the operating temperatures of the cooling circuits are different, one of the radiator thermostats, namely the radiator thermostat of the low temperature circuit, opens before the operating temperature of the high temperature circuit is reached. As a result, the heat introduced via the cooler of the low-temperature circuit is returned to the outside environment during preheating. The resulting energy loss is undesirable. In addition, the preheating slows down.
- the object of the invention is therefore to provide a preheating of the type mentioned, with the preheating losses can be avoided as much as possible and accelerates the preheating.
- the invention solves this problem in that the flow branch and / or return branch is formed by a respective thermostatic valve / each thermostatic valve allows circulation of the heat exchange fluid either in the high-temperature circuit or the low-temperature circuit in response to a switching temperature.
- a thermostatic valve is arranged in the flow of Vorierrm Ahmedes, which arises after the connection of the flow and the return of the preheater with the high-temperature circuit and the low-temperature circuit of the diesel engine, which represents a switchable branch point.
- the thermostatic valve can be determined whether the heat exchange fluid for heating the diesel engine is circulated either via the high-temperature circuit or via the low-temperature circuit. In this way, it is possible to direct the circulation process selectively via one of the two circuits or then cancel, for example, when the required operating temperature is reached. In this way, losses can be avoided and the preheating phase can thus be shortened.
- each thermostatic valve is connected to a temperature sensor which provides a control signal for opening or closing the thermostatic valve.
- thermostatic valve and temperature sensor are designed as two separate components.
- the thermostatic valve remotely controllable by the temperature sensor, wherein the temperature sensor at any point in the diesel engine, for example in the low-temperature cooling circuit, can be arranged.
- the connection between the thermostatic valve and the temperature sensor for example, a mechanical connection, wherein the extension of a temperature-sensitive substance or a temperature-sensitive material in the temperature sensor via a closed media line is transmitted hydraulically or pneumatically to the thermostatic valve.
- the connection is an electrical signal connection, for example a cable-controlled communication line.
- a wireless communication connection for example via radio, Bluetooth or the like, between the temperature sensor and thermostatic valve is possible.
- a very specific linking of the switching operation of the thermostatic valve with the temperature of a suitable component or cooling circuit of the diesel engine is made possible.
- the switching of the thermostatic valve can be done quickly, so that either a circulation takes place only via the high-temperature circuit or only via the low-temperature circuit. Notwithstanding this, the switching takes place gradually, that is, so slowly that over a period of time that is relevant with regard to a detectable heat exchange, the circulation occurs both via the low-temperature and the high-temperature circuit.
- the temperature sensor in the low-temperature circuit can be arranged and set up for detecting the temperature of a heat exchange fluid in the low-temperature circuit.
- the thermostatic valve is set so that initially the low-temperature circuit is heated by the preheating plant according to the invention, wherein the connection of the flow is interrupted with the high-temperature circuit.
- the thermostatic valve switches over so that the circulation pump of the preheating system circulates the heated heat exchange fluid at least also via the high-temperature circuit.
- the thermostatic valve works preferably mechanically, namely by thermal expansions of thermostatic cartridges, which can also be located away from the valve.
- the switching temperature is below an opening temperature of a radiator thermostat of the low-temperature circuit or the high-temperature circuit. If, for example, the connection between the flow and low-temperature circuit is first opened by the thermostatic valve, the diesel engine is heated via the low-temperature circuit. Just before the temperature of the heat exchange medium in the low-temperature circuit reaches the switching temperature of the radiator thermostat of the low-temperature circuit and this would then release the connection to the radiator with heat loss to entourage, the thermostatic valve interrupts the circulation through the low-temperature circuit and opens the connection between flow and high-temperature circuit, so that this is heated until the operating temperature is reached.
- the flow branch check valves are arranged downstream.
- the check valves prevent the coolant from being circulated through the components of the preheater after preheating with the diesel engine running.
- each thermostatic valve connected to the high-temperature circuit high-temperature bypass and connectable to the low-temperature circuit low-temperature bypass is connected in parallel, wherein shut-off valves are arranged in the high-temperature bypass and in the low-temperature bypass.
- the shut-off valves are controllable shut-off valves. Controllable shut-off valves, for example, from the cab of the Rail vehicle are operated remotely. Notwithstanding this, the shut-off valves are manually operated shut-off valves.
- FIG. 1 shows a first embodiment of the preheating plant 1 according to the invention, which has a preheating unit 2 for heating a heat exchange fluid and a circulating pump figuratively not shown, which circulates the heated heat exchange fluid via a flow 3 and a return 4.
- the preheating system 1 further has a power supply, not shown here, here a battery, for powering the preheating unit 2 and the circulation pump.
- the flow 3 and the return 4 each have a branch point 5 and 6, with which the flow 3 is split into the flow branches 3 H and 3 T. At the branch point 6 return branches 4 H and 4 T are combined.
- the preheating system 1 is connected to the cooling system of a diesel engine 7. Said cooling system forms a high-temperature region or, in other words, high-temperature circuit 8 and a low-temperature region or low-temperature circuit 9.
- the flow 3 of the preheater 1 is connected via the Vormérmzweig 3 H with the high-temperature circuit 8 and the preheating branch 3 T with the low-temperature circuit 9 input, the high-temperature circuit 8 output side connected to the return branch 4 H and the low-temperature circuit 9 on the output side with the return branch 4 T. is.
- Heat exchange points 11 and 12 of the diesel engine of the high-temperature circuit 8 and the low-temperature circuit 9 are also shown schematically.
- the high-temperature circuit 8 has a high-temperature radiator thermostat 13.
- the low-temperature circuit 9, however, has a low-temperature cooling thermostat 14.
- the radiator thermostats 14, 13 are each connected to a radiator 15, which is provided by a fan 16.
- each cooler 15 can be bypassed via a bypass 17 when the temperature of a heat exchange liquid detected by the respective radiator thermostat 13 or 14 on the input side is smaller than the operating temperature set at the respective radiator thermostat 13, 14.
- the temperature detection of the respective radiator thermostats 13 and 14 is in FIG. 1 represented by the dashed line. In the cold state, the respective fan 16 is bridged both in the high-temperature circuit 8 and in the low-temperature circuit 9.
- the flow branching point 5 is formed by a thermostatic valve 18, which is connected to a temperature sensor, which is not shown in the figure, in the diesel engine 7 at the heat exchange point 12 via a communication connection 19.
- the communication connection 19 is either a media line which transmits the expansion of the temperature-sensitive substance from the temperature sensor to the thermostatic valve, or an electrical or optical data transmission line via which the measurement signals provided on the output side by the temperature sensor are transferred to the thermostatic valve 18.
- the mode of action of in FIG. 1 shown preheating system is as follows: To start the diesel engine 7 this must be heated.
- the preheating unit 2 has the electrically or fuel-operated operated preheating unit 2, which heats the heat exchange fluid.
- the likewise driven by the battery of the preheating, not shown circulating pump circulates the heated heat exchange fluid via the flow 3 and the thermostatic valve 18, wherein the flow 3 is initially connected only via the flow branch 3 T with the low-temperature circuit 9.
- the heated heat exchange fluid thus enters from the flow 3 in the low-temperature circuit 9 and flows through the return branch 4 T then in the return 4 of the preheater 1.
- the preheating is thus formed by the flow 3, the low-temperature circuit 9 and the return 4.
- the thermostatic valve 18 is set to a switching temperature. Exceeds the temperature of the heat exchange fluid in the low-temperature circuit 9, the switching temperature, the thermostat valve 18 switches the flow 3, so that it is connected via the flow branch 3 H only with the high-temperature circuit 8.
- the operating temperature of the thermostatic valve 18 is just below the switching temperature of the low-temperature radiator thermostat 14, so that the radiator 15 remains bridged during preheating and no unwanted heat loss occurs.
- the preheating circuit is then formed by the flow 3, the high-temperature circuit 8 and the return 4. If the preheating circuit 8 also reaches operating temperature, the diesel engine 7 can be started.
- An expedient display in the driver's cab clarifies the heating state of the diesel engine 7.
- the circulation pumps of the low-temperature circuit 9 and of the high-temperature circuit 8 are switched off.
- the preheating system is switched off.
- the circulation pumps of the diesel engine cooling in FIG. 1 not shown, the circulation of the heat exchange liquid opposite to the direction indicated by the arrows in the figure.
- the preheating system 1 can then be bridged.
- FIG. 2 shows a further embodiment of the preheating system 1 according to the invention, which largely the in FIG. 2 shown preheating plant 1, but in the flow 3 of the aforementioned Appendix 1, both in the flow branch 3 H and in the flow branch 3 T check valves 20 are arranged to prevent the heat exchange fluid in diesel mode set to the in FIG. 1 shown direction is circulated through the preheating system 1.
- FIG. 3 shows a further embodiment of the preheating system 1 according to the invention, wherein the thermostatic valve 18 is once bridged by a high-temperature bypass 21 and a low-temperature bypass 22.
- the high temperature bypass 21 and the low-temperature bypass 22 each have an electrically controllable shut-off valve 23.
- the input side of the thermostatic valve 18, a further controllable shut-off valve 23 is arranged.
- the shut-off valves 23 it is possible to selectively connect either the high-temperature circuit 8 and low-temperature circuit 9 and both temperature circuits simultaneously with the preheater 1, wherein the inlet side of the thermostatic valve 18 arranged shut-off valve 23 is transferred to its blocking position.
- Such a decoupled from the thermostat 18 connection of the cooling circuits 8, 9 with the preheater 1 is desired, for example, in Zuloom vulgar thought in which the preheater 1 with running diesel engine 7 continues to provide heat for rapid heating of the diesel engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
Die Erfindung betrifft eine Vorwärmanlage zum Erwärmen eines Dieselmotors, der einen Hochtemperaturkreislauf und einen Niedertemperaturkreislauf aufweist, mit einer Umwälzpumpe und einer Vorwärmeinheit zum Umwälzen und Erwärmen einer Wärmeaustauschflüssigkeit, wobei ein Zulauf, in dem eine Zulaufverzweigung zum Anschluss des Hochtemperaturkreislaufs und des Niedertemperaturkreislaufs angeordnet ist, und ein Rücklauf vorgesehen sind, in dem eine Rücklaufverzweigung zum Anschluss des Hochtemperaturkreislaufs und des Niedertemperaturkreislaufs angeordnet ist.The invention relates to a preheating plant for heating a diesel engine, which has a high-temperature circuit and a low-temperature circuit, with a circulation pump and a preheating unit for circulating and heating a heat exchange fluid, wherein an inlet, in which a feed branch for connection of the high-temperature circuit and the low-temperature circuit is arranged, and a return are provided, in which a return branch for connection of the high-temperature circuit and the low-temperature circuit is arranged.
Ein solcher Vorwärmkreislauf ist aus der Praxis bekannt. Dieselmotoren und insbesondere Großdieselmotoren, die in Lokomotiven oder Triebwagen eines Schienenfahrzeugs eingesetzt werden, können im kalten Zustand nicht gestartet werden. Aus diesem Grunde ist bei Fahrzeugen mit einem solchen Dieselmotor eine Vorwärmanlage vorgesehen, die elektrisch oder mittels Kraftstoff angetrieben wird. Um die benötigte Wärme in den kalten Dieselmotor einzubringen, wird die Kühlflüssigkeit des Dieselmotors beheizt, wobei die Kühlflüssigkeit über einen Vorwärmkreis umgewälzt wird. Die Kühlflüssigkeit, die im späteren Dieselbetrieb für die Kühlung des Dieselmotors sorgt, dient im kalten System somit als wärmendes Medium.Such a preheating circuit is known from practice. Diesel engines, and in particular large diesel engines, which are used in locomotives or railcars of a rail vehicle can not be started when cold. For this reason, in vehicles with such a diesel engine, a preheating system is provided which is driven electrically or by means of fuel. In order to introduce the required heat into the cold diesel engine, the cooling liquid of the diesel engine is heated, wherein the cooling liquid is circulated through a preheating circuit. The cooling liquid, which in the later diesel operation ensures the cooling of the diesel engine, thus serves as a warming medium in the cold system.
Aus der
Großdieselmotoren besitzen üblicherweise zwei parallele Kühlkreisläufe, nämlich einen Hochtemperaturkreislauf und einen Niedertemperaturkreislauf. Der Hochtemperaturkreislauf dient hauptsächlich zum Kühlen der Zylinderköpfe und der Zylinderlaufbuchsen. Darüber hinaus können Motorölkühler, Abgasrückführungssysteme und weitere Komponenten über den Hochtemperaturkreislauf gekühlt werden. Der Niedertemperaturkreislauf dient hingegen zum Kühlen der Verbrennungsluft, die zuvor durch Komprimierung in einem Turbolader erhitzt wurde. Die Kühlung der Verbrennungsluft bewirkt beim Verbrennungsprozess des Dieselmotors eine höhere Leistungsausbeute. In dem Niedertemperaturkreislauf können darüber hinaus auch weitere Baugruppen eingebunden sein. Der Grund für die Ausbildung zweier unabhängiger Kühlkreisläufe in einem Dieselmotor ist in den unterschiedlichen Arbeitstemperaturen zu sehen, die für ihren jeweiligen Einsatz erforderlich sind.Large diesel engines usually have two parallel cooling circuits, namely a high-temperature circuit and a low-temperature circuit. The high temperature circuit is mainly used to cool the cylinder heads and cylinder liners. In addition, engine oil coolers, exhaust gas recirculation systems and other components can be used via the high temperature circuit be cooled. The low-temperature circuit, on the other hand, serves to cool the combustion air, which was previously heated by compression in a turbocharger. The cooling of the combustion air causes the combustion process of the diesel engine, a higher power output. In addition, further assemblies can be integrated in the low-temperature circuit. The reason for the formation of two independent cooling circuits in a diesel engine can be seen in the different operating temperatures required for their particular application.
Zum Abführen der Wärme sind sowohl der Hochtemperaturkreislauf als auch der Niedertemperaturkreislauf jeweils mit einem eigenen Kühler ausgerüstet, der die Abgabe von Wärme während des Betriebs des Dieselmotors ermöglicht. Um beim Vorwärmen durch die Kühler keine Wärmeverluste zu erzeugen, verfügen beide Kühlkreisläufe über Kühlerthermostate, die mit einem Bypass des jeweiligen Kühlers und mit dem Kühler selbst verbunden sind. Im kalten Zustand öffnet jedes Kühlerthermostat zum Bypass hin, so dass beim Vorwärmen das Kühlwasser nicht über den jeweiligen Kühler umgewälzt wird. Erreicht jedoch das Kühlwasser eine zuvor am Kühlerthermostat eingestellte Betriebstemperatur, öffnet das Kühlerthermostat zum Kühler hin und verschließt den Bypass, so dass der Umlauf anschließend nur noch über den jeweiligen Kühler erfolgt. Da die Betriebstemperaturen des Hochtemperaturkreislaufs und des Niedertemperaturkreislaufs unterschiedlich sind, öffnen auch die jeweiligen Kühlerthermostate bei unterschiedlichen Temperaturen den Umlauf zum Kühler hin. Zum Vorwärmen des Dieselmotors werden sowohl der Hochtemperaturkreislauf als auch der Niedertemperaturkreislauf mit einem Zulauf beziehungsweise einem Rücklauf einer Vorwärmanlage verbunden, so dass ein Vorwärmkreis ausgebildet ist, bei dem eine Wärmeaustauschflüssigkeit über Hoch- und Niedertemperaturabschnitt des Dieselmotors umgewälzt wird. Die vorgewärmte Wärmeaustauschflüssigkeit wird somit über beide Kühlkreisläufe geführt. Wie bereits weiter oben ausgeführt wurde, sind zunächst beide Kühlerthermostate lediglich zum Bypass hin geöffnet, so dass die vorgewärmte Wärmeaustauschflüssigkeit nicht über die Kühler geführt wird. Da die Betriebstemperaturen der Kühlkreisläufe unterschiedlich sind, öffnet eines der Kühlerthermostate, nämlich das Kühlerthermostat des Niedertemperaturkreislaufs, bevor die Betriebstemperatur des Hochtemperaturkreislaufs erreicht ist. Dadurch wird beim Vorwärmen die eingebrachte Wärme über den Kühler des Niedertemperaturkreislaufs wieder an die Außenumgebung abgegeben. Der dabei entstehende Energieverlust ist unerwünscht. Darüber hinaus verlangsamt sich der Vorwärmvorgang.To dissipate the heat, both the high-temperature circuit and the low-temperature circuit are each equipped with their own radiator, which allows the release of heat during operation of the diesel engine. To avoid heat loss when preheating by the radiator, both cooling circuits have radiator thermostats connected to a bypass of the respective radiator and to the radiator itself. When cold, each radiator thermostat opens to the bypass, so that when preheating the cooling water is not circulated through the respective radiator. However, when the cooling water reaches an operating temperature previously set on the radiator thermostat, the radiator thermostat opens to the radiator and closes the bypass, so that the circulation then takes place only via the respective radiator. Since the operating temperatures of the high-temperature circuit and the low-temperature circuit are different, the respective radiator thermostats also open the circulation to the radiator at different temperatures. For preheating the diesel engine, both the high-temperature circuit and the low-temperature circuit are connected to an inlet or a return of a preheating system, so that a preheating circuit is formed in which a heat exchange fluid circulates over the high and low temperature sections of the diesel engine becomes. The preheated heat exchange fluid is thus passed over both cooling circuits. As already stated above, initially both radiator thermostats are only open towards the bypass, so that the preheated heat exchange fluid is not conducted via the radiator. Since the operating temperatures of the cooling circuits are different, one of the radiator thermostats, namely the radiator thermostat of the low temperature circuit, opens before the operating temperature of the high temperature circuit is reached. As a result, the heat introduced via the cooler of the low-temperature circuit is returned to the outside environment during preheating. The resulting energy loss is undesirable. In addition, the preheating slows down.
Aus dem Stand der Technik ist bekannt, beim Vorwärmen einen größeren Volumenstrom an Wärmeaustauschflüssigkeit in den Hochtemperaturkreislauf einzubringen. Dieser wird nicht nur bei einer höheren Betriebstemperatur betrieben, sondern weist auch ein größeres Flüssigkeitsvolumen auf als der parallel geschaltete Niedertemperaturkreislauf. Ein unterschiedlich großer Volumenstrom an erwärmter Vorwärmflüssigkeit wird durch eine Drosselblende erzeugt, die im Niedertemperaturkreislauf angeordnet ist. Die Drosselblende stellt für die beim Vorwärmen umgewälzte Wärmeaustauschflüssigkeit einen Strömungswiderstand dar, so dass mehr Wärmeaustauschflüssigkeit in den Hochtemperaturkreislauf eingebracht wird. Die Einstellung der Drosselblende ist jedoch aufwändig, weil unterschiedliche Umgebungstemperaturen zu unterschiedlichen Vorwärmzeiten und unterschiedlichen Energieeinträgen in die jeweiligen Kühlkreise führen. Darüber hinaus wird selbst bei Aufnahme einer Drosselblende in den Niedertemperaturkreis der Nachteil hingenommen, dass das Kühlerthermostat des Niedertemperaturkreises vor Beendigung der Vorwärmphase öffnet. Aufgabe der Erfindung ist es daher, eine Vorwärmanlage der eingangs genannten Art bereitzustellen, mit der Vorwärmeverluste soweit wie möglich vermieden werden können und sich der Vorwärmvorgang beschleunigt.From the prior art is known to introduce a larger volume flow of heat exchange fluid in the high-temperature circuit during preheating. This is not only operated at a higher operating temperature, but also has a larger volume of fluid than the parallel-connected low-temperature circuit. A different volume flow of heated preheating liquid is generated by an orifice arranged in the low-temperature circuit. The orifice plate provides a flow resistance to the heat exchange fluid circulated during the preheating so that more heat exchange fluid is introduced into the high temperature circuit. However, the adjustment of the orifice plate is complex because different ambient temperatures lead to different preheating times and different energy inputs into the respective cooling circuits. In addition, even with the inclusion of an orifice in the low temperature circuit, the disadvantage accepted that the radiator thermostat of the low temperature circuit opens before the end of the preheating phase. The object of the invention is therefore to provide a preheating of the type mentioned, with the preheating losses can be avoided as much as possible and accelerates the preheating.
Die Erfindung löst diese Aufgabe dadurch, dass die Vorlaufverzweigung und/oder Rücklaufverzweigung durch jeweils ein Thermostatventil ausgebildet ist/sind, wobei jedes Thermostatventil einen Umlauf der Wärmeaustauschflüssigkeit entweder in dem Hochtemperaturkreislauf oder dem Niedertemperaturkreislauf in Abhängigkeit einer Umschalttemperatur ermöglicht.The invention solves this problem in that the flow branch and / or return branch is formed by a respective thermostatic valve / each thermostatic valve allows circulation of the heat exchange fluid either in the high-temperature circuit or the low-temperature circuit in response to a switching temperature.
Erfindungsgemäß ist im Vorlauf eines Vorwärmkreises, der nach der Verbindung des Vorlaufs und des Rücklaufs der Vorwärmanlage mit dem Hochtemperaturkreislauf und dem Niedertemperaturkreislauf des Dieselmotors entsteht, ein Thermostatventil angeordnet, das einen schaltbaren Verzweigungspunkt darstellt. Mit Hilfe des Thermostatventils kann festgelegt werden, ob die Wärmeaustauschflüssigkeit zum Aufheizen des Dieselmotors entweder über den Hochtemperaturkreislauf oder aber über den Niedertemperaturkreislauf umgewälzt wird. Auf diese Art und Weise ist es möglich, den Umwälzvorgang gezielt über einen der beiden Kreisläufe zu lenken oder dann abzubrechen, wenn beispielsweise die notwendige Betriebstemperatur erreicht ist. Auf diese Art und Weise können Verluste vermieden und die Vorwärmphase somit verkürzt werden.According to the invention, a thermostatic valve is arranged in the flow of Vorwärmkreises, which arises after the connection of the flow and the return of the preheater with the high-temperature circuit and the low-temperature circuit of the diesel engine, which represents a switchable branch point. With the help of the thermostatic valve can be determined whether the heat exchange fluid for heating the diesel engine is circulated either via the high-temperature circuit or via the low-temperature circuit. In this way, it is possible to direct the circulation process selectively via one of the two circuits or then cancel, for example, when the required operating temperature is reached. In this way, losses can be avoided and the preheating phase can thus be shortened.
Zweckmäßigerweise ist jedes Thermostatventil mit einem Temperatursensor verbunden ist, der ein Steuersignal zum Öffnen oder Schließen des Thermostatventils bereitstellt. Gemäß dieser vorteilhaften Weiterentwicklung der Erfindung sind Thermostatventil und Temperatursensor als zwei separate Bauteile ausgebildet. Mit anderen Worten ist das Thermostatventil durch den Temperatursensor fernsteuerbar, wobei der Temperatursensor an beliebigen Stellen im Dieselmotor, beispielsweise im Niedertemperaturkühlkreislauf, angeordnet sein kann. Die Verbindung zwischen dem Thermostatventil und dem Temperatursensor ist beispielsweise eine mechanische Verbindung, wobei die Ausdehnung einer temperaturempfindlichen Substanz oder eines temperaturempfindlichen Materials im Temperatursensor über eine abgeschlossene Medienleitung hydraulisch oder pneumatisch an das Thermostatventil übertragen wird. Abweichend davon ist die Verbindung eine elektrische Signalverbindung, beispielsweise eine kabelgeführte Kommunikationsleitung. Im Rahmen der Erfindung ist jedoch auch eine kabellose Kommunikationsverbindung, beispielsweise über Funk, Bluetooth oder dergleichen, zwischen Temperatursensor und Thermostatventil möglich. Auf diese Art und Weise ist ein ganz gezieltes Verknüpfen des Umschaltvorgangs des Thermostatventils mit der Temperatur eines zweckmäßigen Bauteiles oder Kühlkreises des Dieselmotors ermöglicht.Conveniently, each thermostatic valve is connected to a temperature sensor which provides a control signal for opening or closing the thermostatic valve. According to this advantageous development of the invention, thermostatic valve and temperature sensor are designed as two separate components. In other words, the thermostatic valve remotely controllable by the temperature sensor, wherein the temperature sensor at any point in the diesel engine, for example in the low-temperature cooling circuit, can be arranged. The connection between the thermostatic valve and the temperature sensor, for example, a mechanical connection, wherein the extension of a temperature-sensitive substance or a temperature-sensitive material in the temperature sensor via a closed media line is transmitted hydraulically or pneumatically to the thermostatic valve. Deviating from this, the connection is an electrical signal connection, for example a cable-controlled communication line. In the context of the invention, however, a wireless communication connection, for example via radio, Bluetooth or the like, between the temperature sensor and thermostatic valve is possible. In this way, a very specific linking of the switching operation of the thermostatic valve with the temperature of a suitable component or cooling circuit of the diesel engine is made possible.
Erfindungsgemäß kann das Umschalten des Thermostatventils schnell erfolgen, so dass entweder ein Umlauf nur über den Hochtemperaturkreis oder nur über den Niedertemperaturkreis erfolgt. Abweichend hiervon erfolgt das Umschalten allmählich, also so langsam, dass über eine sich im Hinblick auf einen erfassbaren Wärmeaustausch relevante Zeitdauer hinweg der Umlauf sowohl über den Niedertemperatur- als auch über den Hochtemperaturkreislauf erfolgt.According to the invention, the switching of the thermostatic valve can be done quickly, so that either a circulation takes place only via the high-temperature circuit or only via the low-temperature circuit. Notwithstanding this, the switching takes place gradually, that is, so slowly that over a period of time that is relevant with regard to a detectable heat exchange, the circulation occurs both via the low-temperature and the high-temperature circuit.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist der Temperatursensor im Niedertemperaturkreislauf anordenbar und zum Erfassen der Temperatur einer Wärmeaustauschflüssigkeit in dem Niedertemperaturkreislauf eingerichtet. Gemäß dieser vorteilhaften Weiterentwicklung ist das Thermostatventil so eingestellt, dass zunächst der Niedertemperaturkreislauf durch die erfindungsgemäße Vorwärmanlage erwärmt wird, wobei die Verbindung des Vorlaufs mit dem Hochtemperaturkreislauf unterbrochen ist. Erreicht die Temperatur der Wärmeaustauschflüssigkeit im Niedertemperaturkreislauf die eingestellte Umschalttemperatur, schaltet das Thermostatventil um, so dass die Umwälzpumpe der Vorwärmanlage die erwärmte Wärmeaustauschflüssigkeit zumindest auch über den Hochtemperaturkreislauf umwälzt. Das Thermostatventil arbeitet bevorzugt mechanischen, nämlich durch Wärmeausdehnungen von Thermostatpatronen, die auch entfernt vom Ventil angeordnet sein können. Es handelt sich in diesen Fällen nicht um eine digitale Umschaltung, sondern um ein allmähliches Öffnen des Thermostatventils. Somit können Hochtemperatur- und Niedertemperaturkreislauf über die Umschaltzeitdauer hinweg gleichzeitig erwärmt werden. Selbstverständlich liegt auch der Einsatz digitaler Thermostatventile, die entweder den einen Kreislauf oder den anderen Kreislauf mit der Vorwärmanlage verbinden im Rahmen der Erfindung. Unterschreitet die in dem Niedertemperaturkreislauf dann verbleibende Wärmeaustauschflüssigkeit anschließend die Umschalttemperatur, kommt es zu einem erneuten Umschalten des Thermostatventils und somit zu einem erneuten verstärkten Umwälzen über den Niedertemperaturkreislauf. Dieser wird anschließend wieder so weit erwärmt, bis die Betriebstemperatur erreicht ist. Anschließend erfolgt ein erneutes Umschalten und Umwälzen über den Hochtemperaturkreislauf. Dieser Vorgang kann sich so lange wiederholen, bis die Temperatur der Wärmeaustauschflüssigkeit in dem Hochtemperaturkreislauf der zuvor eingestellten Betriebstemperatur entspricht. Anschließend kann der Dieselmotor gestartet und die Vorwärmanlage abgeschaltet werden. Zweckmäßigerweise wird die Wärmeaustauschflüssigkeit dann von der Motorkühlung entgegen der Umwälzrichtung der Vorwärmanlage durch den Dieselmotor geführt.According to a preferred embodiment of the invention, the temperature sensor in the low-temperature circuit can be arranged and set up for detecting the temperature of a heat exchange fluid in the low-temperature circuit. According to this advantageous development, the thermostatic valve is set so that initially the low-temperature circuit is heated by the preheating plant according to the invention, wherein the connection of the flow is interrupted with the high-temperature circuit. When the temperature of the heat exchange fluid in the low-temperature circuit reaches the set switching temperature, the thermostatic valve switches over so that the circulation pump of the preheating system circulates the heated heat exchange fluid at least also via the high-temperature circuit. The thermostatic valve works preferably mechanically, namely by thermal expansions of thermostatic cartridges, which can also be located away from the valve. In these cases, it is not a digital switchover, but a gradual opening of the thermostatic valve. Thus, high temperature and low temperature circuits can be heated simultaneously over the switching period. Of course, the use of digital thermostatic valves which connect either one circuit or the other circuit with the preheating system is within the scope of the invention. If the heat exchange fluid then remaining in the low-temperature circuit then falls below the switching-over temperature, the thermostatic valve is switched over again, and thus a renewed intensified circulation via the low-temperature circuit. This is then heated again until the operating temperature is reached. Subsequently, a new switching and circulation takes place via the high-temperature circuit. This process can be repeated until the temperature of the heat exchange fluid in the high-temperature circuit corresponds to the previously set operating temperature. Then the diesel engine can be started and the preheating system switched off. Conveniently, the heat exchange fluid is then guided by the engine cooling against the direction of circulation of the preheating by the diesel engine.
Zweckmäßigerweise liegt die Umschalttemperatur unterhalb einer Öffnungstemperatur eines Kühlerthermostats des Niedertemperaturkreislaufs oder des Hochtemperaturkreislaufs. Wird beispielsweise durch das Thermostatventil zunächst die Verbindung zwischen Vorlauf- und Niedertemperaturkreislauf geöffnet, erfolgt ein Erwärmen des Dieselmotors über den Niedertemperaturkreislauf. Kurz bevor die Temperatur des Wärmeaustauschmittels im Niedertemperaturkreislauf die Umschalttemperatur des Kühlerthermostats des Niedertemperaturkreislaufs erreicht und dieses dann die Verbindung zum Kühler mit einem Wärmeverlust um Gefolge freigegeben würde, unterbricht das Thermostatventil das Umwälzen über den Niedertemperaturkreislauf und öffnet die Verbindung zwischen Vorlauf- und Hochtemperaturkreislauf, so dass dieser so lange erwärmt wird, bis die Betriebstemperatur erreicht ist.Conveniently, the switching temperature is below an opening temperature of a radiator thermostat of the low-temperature circuit or the high-temperature circuit. If, for example, the connection between the flow and low-temperature circuit is first opened by the thermostatic valve, the diesel engine is heated via the low-temperature circuit. Just before the temperature of the heat exchange medium in the low-temperature circuit reaches the switching temperature of the radiator thermostat of the low-temperature circuit and this would then release the connection to the radiator with heat loss to entourage, the thermostatic valve interrupts the circulation through the low-temperature circuit and opens the connection between flow and high-temperature circuit, so that this is heated until the operating temperature is reached.
Zweckmäßigerweise sind der Vorlaufverzweigung Rückschlagventile nachgeordnet. Die Rückschlagventile verhindern, dass im Anschluss an das Vorwärmen bei laufendem Dieselmotor die Kühlflüssigkeit über die Komponenten der Vorwärmanlage umgewälzt wird.Conveniently, the flow branch check valves are arranged downstream. The check valves prevent the coolant from being circulated through the components of the preheater after preheating with the diesel engine running.
Zweckmäßigerweise ist jedem Thermostatventil ein mit dem Hochtemperaturkreislauf verbindbarer Hochtemperaturbypass und ein mit dem Niedertemperaturkreislauf verbindbarer Niedertemperaturbypass parallel geschaltet, wobei in dem Hochtemperaturbypass und in dem Niedertemperaturbypass Absperrventile angeordnet sind. Mit Hilfe des Bypasses ist es möglich, bei laufendem Dieselmotor entweder den Hochtemperaturkreislauf oder den Niedertemperaturkreislauf oder beide gleichzeitig zusätzlich zu beheizen. Hierbei ist es zweckmäßig, dass die Absperrventile ansteuerbare Absperrventile sind. Ansteuerbare Absperrventile können beispielsweise vom Führerstand des Schienenfahrzeugs fern betätigt werden. Abweichend hiervon sind die Absperrventile von Hand betätigbare Absperrventile.Conveniently, each thermostatic valve connected to the high-temperature circuit high-temperature bypass and connectable to the low-temperature circuit low-temperature bypass is connected in parallel, wherein shut-off valves are arranged in the high-temperature bypass and in the low-temperature bypass. With the help of the bypass, it is possible to heat either the high-temperature circuit or the low-temperature circuit or both at the same time in addition while the diesel engine is running. It is expedient that the shut-off valves are controllable shut-off valves. Controllable shut-off valves, for example, from the cab of the Rail vehicle are operated remotely. Notwithstanding this, the shut-off valves are manually operated shut-off valves.
Weitere Ausführungsbeispiel und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung unter Bezug auf die Figuren der Zeichnung, wobei gleiche Bezugszeichen auf gleich wirkende Bauteile verweisen und
Figur 1- ein Ausführungsbeispiel der erfindungsgemäßen Vorwärmanlage in einer schematischen Darstellung,
- Figur 2
- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorwärmanlage und
Figur 3- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorwärmanlage zeigen.
- FIG. 1
- An embodiment of the preheating system according to the invention in a schematic representation,
- FIG. 2
- a further embodiment of the preheating plant according to the invention and
- FIG. 3
- show a further embodiment of the preheating system according to the invention.
Es sei an dieser Stelle angemerkt, dass im Rahmen der hier beschriebenen Erfindung die schwarz gezeichneten, mit Pfeilen versehenen Striche schematisch rohrförmigen Leitungen darstellen, die das Führen der Wärmeaustauschflüssigkeit unter gleichzeitigem Wärmeaustausch ermöglichen. Die Vorwärmanlage 1 ist mit dem Kühlsystem eines Dieselmotors 7 verbunden. Das besagte Kühlsystem bildet einen Hochtemperaturbereich oder mit anderen Worten Hochtemperaturkreislauf 8 sowie einen Niedertemperaturbereich beziehungsweise Niedertemperaturkreislauf 9 aus. Der Vorlauf 3 der Vorwärmanlage 1 ist über den Vorwärmzweig 3H mit dem Hochtemperaturkreislauf 8 und über den Vorwärmzweig 3T mit dem Niedertemperaturkreislauf 9 eingangsseitig verbunden, wobei der Hochtemperaturkreislauf 8 ausgangsseitig mit dem Rücklaufzweig 4H und der Niedertemperaturkreislauf 9 ausgangsseitig mit dem Rücklaufzweig 4T verbunden ist. Wärmeaustauschstellen 11 und 12 des Dieselmotors des Hochtemperaturkreislaufs 8 beziehungsweise des Niedertemperaturkreislaufs 9 sind ebenfalls schematisch dargestellt.It should be noted at this point that in the context of the invention described here, the black-drawn, provided with arrows lines represent schematically tubular lines that allow the guiding of the heat exchange fluid with simultaneous heat exchange. The preheating
Der Hochtemperaturkreislauf 8 verfügt über ein Hochtemperaturkühlerthermostat 13. Der Niedertemperaturkreislauf 9 weist hingegen ein Niedertemperaturkühlthermostat 14 auf. Die Kühlerthermostate 14, 13 sind jeweils mit einem Kühler 15 verbunden ist, der von einem Lüfter 16 versehen ist. Dabei kann jeder Kühler 15 über einen Bypass 17 überbrückt werden, wenn die vom jeweiligen Kühlerthermostat 13 beziehungsweise 14 eingangsseitig erfasste Temperatur einer Wärmeaustauschflüssigkeit kleiner ist als die am jeweiligen Kühlerthermostat 13, 14 eingestellte Betriebstemperatur. Die Temperaturerfassung der jeweiligen Kühlerthermostate 13 beziehungsweise 14 ist in
Erfindungsgemäß ist der Vorlaufverzweigungspunkt 5 durch ein Thermostatventil 18 ausgebildet, das mit einem im Dieselmotor 7 an der Wärmeaustauschstelle 12 angeordneten figürlich nicht dargestellten Temperatursensor über eine Kommunikationsverbindung 19 verbunden ist. In dem gezeigten Ausführungsbeispiel ist die Kommunikationsverbindung 19 entweder eine Medienleitung, die die Ausdehnung der temperaturempfindlichen Substanz vom Temperatursensor an das Thermostatventil überträgt, oder eine elektrische oder optische Datenübertragungsleitung, über die die ausgangsseitig vom Temperatursensor bereitgestellten Messsignale an das Thermostatventil 18 überführt werden.According to the invention, the
Die Wirkungsweise der in
Zweckmäßigerweise liegt die Betriebstemperatur des Thermostatventils 18 knapp unterhalb der Umschalttemperatur des Niedertemperaturkühlerthermostats 14, so dass der Kühler 15 beim Vorwärmen überbrückt bleibt und kein unerwünschter Wärmeverlust entsteht. Der Vorwärmkreis ist dann durch den Vorlauf 3, den Hochtemperaturkreislauf 8 sowie den Rücklauf 4 gebildet. Erreicht der Vorwärmkreislauf 8 ebenfalls Betriebstemperatur, kann der Dieselmotor 7 gestartet werden. Eine zweckmäßige Anzeige im Führerstand verdeutlicht der Erwärmungszustand des Dieselmotors 7.Conveniently, the operating temperature of the
Während der Vorwärmphase sind die Umwälzpumpen des Niedertemperaturkreislaufs 9 sowie des Hochtemperaturkreislaufs 8 ausgeschaltet. Nach dem Starten des Dieselmotors 7 wird die Vorwärmanlage abgeschaltet. Anschließend übernehmen die Umwälzpumpen der Dieselmotorkühlung, die in
Claims (8)
- Preheating system (1) for heating a diesel engine, having a high-temperature circuit (8) and a low-temperature circuit (9), with a circulation pump and a preheating unit (2) for circulating and heating a heat-exchange fluid, wherein an inlet (3), in which an inlet branch (5) is disposed for connecting the high-temperature circuit (8) and low-temperature circuit (9), and a return line (4), in which a return branch (6) is disposed for connecting the high-temperature circuit (8) and low-temperature circuit (9) are provided,
characterised in that, the inlet branch (5) and/or return branch (6) is/are embodied by a thermostatic valve (18) in each case, wherein each thermostatic valve (18) makes circulation of the heat-exchange fluid either in the high-temperature circuit (8) or in the low-temperature circuit (9) possible as a function of a switchover temperature. - Preheating system (1) according to claim 1,
characterised in that
each thermostatic valve (18) is connected to a temperature sensor, which provides a control signal for opening or closing the thermostatic valve. - Preheating system (1) according to claim 2,
characterised in that the temperature sensor is able to be disposed on the low-temperature circuit (9) and is configured for detecting the temperature of a heat exchange fluid in the low-temperature circuit (9). - Preheating system (1) according to claim 2,
characterised in that
the temperature sensor is able to be disposed on a component (12) of the diesel engine. - Preheating system (1) according to one of the preceding claims,
characterised in that the switchover temperature lies below an opening temperature of a cooler thermostat (13, 14) of the low-temperature circuit (9) or high-temperature circuit (8). - Preheating system (1) according to one of the preceding claims,
characterised in that
return valves (20) are disposed downstream of the inlet branch (5). - Preheating system (1) according to one of the preceding claims,
characterised in that
connected in parallel with each thermostatic valve (18) is a high-temperature bypass (21) able to be connected to the high-temperature circuit (8) and a low-temperature bypass (22) able to be connected to the low-temperature circuit (9), wherein stop valves (23) are disposed in the high-temperature bypass (21) and the low-temperature bypass (22). - Preheating system (1) according to claim 7,
characterised in that the stop valves are controllable stop valves (23).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11717999T PL2567083T3 (en) | 2010-05-03 | 2011-04-27 | Preheating system for preheating large diesel engines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019664A DE102010019664A1 (en) | 2010-05-03 | 2010-05-03 | Preheating system for preheating large diesel engines |
PCT/EP2011/056597 WO2011138194A2 (en) | 2010-05-03 | 2011-04-27 | Preheating system for preheating large diesel engines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2567083A2 EP2567083A2 (en) | 2013-03-13 |
EP2567083B1 true EP2567083B1 (en) | 2014-10-01 |
Family
ID=44118923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11717999.4A Active EP2567083B1 (en) | 2010-05-03 | 2011-04-27 | Preheating system for preheating large diesel engines |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2567083B1 (en) |
DE (1) | DE102010019664A1 (en) |
PL (1) | PL2567083T3 (en) |
WO (1) | WO2011138194A2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223196B (en) * | 1962-12-24 | 1966-08-18 | Kloeckner Humboldt Deutz Ag | Liquid cooling system for supercharged internal combustion engines |
DE10006873B4 (en) * | 1999-10-16 | 2006-09-14 | Richard Ambros | Method for exact temperature control of a cooling water intended for engine cooling and heating of a vehicle |
GB2392238B (en) * | 2001-04-27 | 2005-08-24 | Gen Motors Corp | Layover heating system for a locomotive |
DE102005029918B4 (en) * | 2005-04-29 | 2010-05-06 | Mtu Friedrichshafen Gmbh | Cooling system for a supercharged internal combustion engine |
DE102008032529A1 (en) * | 2008-07-10 | 2010-01-14 | Volkswagen Ag | Coolant circuit operating method for heating interior of hybrid vehicle, involves separating heat exchanger of electrical assembly from coolant circuit by bypass valves in operating phase below predefined coolant temperature |
-
2010
- 2010-05-03 DE DE102010019664A patent/DE102010019664A1/en not_active Withdrawn
-
2011
- 2011-04-27 EP EP11717999.4A patent/EP2567083B1/en active Active
- 2011-04-27 PL PL11717999T patent/PL2567083T3/en unknown
- 2011-04-27 WO PCT/EP2011/056597 patent/WO2011138194A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
PL2567083T3 (en) | 2015-03-31 |
WO2011138194A3 (en) | 2011-12-29 |
EP2567083A2 (en) | 2013-03-13 |
WO2011138194A2 (en) | 2011-11-10 |
DE102010019664A1 (en) | 2011-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102012200005B4 (en) | Method for operating a coolant circuit | |
DE102014215074B4 (en) | Temperature control arrangement for transmission oil of a motor vehicle and method for temperature control of transmission oil in a motor vehicle | |
DE112014007306B4 (en) | SYSTEM FOR HEATING AND COOLING TRANSMISSION FLUID | |
EP1947308B1 (en) | Integrated motor cooling system | |
DE102005048286B4 (en) | Method for operating a cooling system for an internal combustion engine | |
DE202008014212U1 (en) | Heat exchanger with bypass valve | |
DE102008007766A1 (en) | Cooling device for cooling internal combustion engine, has coolant circuit comprising coolant pitch circles that are separated from each other by electromechanical assembly by self-switching, where circle has different cooling agents | |
WO2014177513A1 (en) | Cooling circuit | |
DE112011105266T5 (en) | Fluid control system | |
DE102014106725A1 (en) | DRIVE TRAVEL COOLING SYSTEM WITH COOLING AND HEATING MODES FOR HEAT EXCHANGERS | |
EP1923549B1 (en) | Cooling system for a motor vehicle | |
DE102005029918B4 (en) | Cooling system for a supercharged internal combustion engine | |
DE10048792A1 (en) | thermostatic valve | |
DE102020101828B4 (en) | TRANSMISSION HEAT MANAGEMENT STRATEGY | |
DE102009009854B4 (en) | Coolant circuit for an internal combustion engine | |
DE112018004425T5 (en) | Active heating system and heating process | |
DE10302170A1 (en) | Combustion engine coolant circuit has a link to a gearbox oil cooler circuit that is controlled by the position of a control unit actuator so that gearbox oil can be heated or cooled as necessary | |
EP2567083B1 (en) | Preheating system for preheating large diesel engines | |
DE19802362C2 (en) | Process and device for reducing the waiting time for drawing off hot domestic water | |
DE102018221037A1 (en) | Engine cooling system | |
DE202015100577U1 (en) | Control means for controlling the coolant flows of a split cooling system | |
DE102010002605B4 (en) | Method for shortening the warm-up phase by means of heat recovery from recirculated exhaust gases | |
DE102012023823A1 (en) | Vehicle air conditioning | |
DE102012000326A1 (en) | Cooling device for internal combustion engine used in motor car, has main condenser that is provided with outer cooling circuit which is thermally decoupled with inner cooling circuit provided with gear oil heat exchanger | |
DE102014203896A1 (en) | Motor vehicle with an internal combustion engine |
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 |
|
17P | Request for examination filed |
Effective date: 20121023 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140401 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140422 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140520 |
|
INTG | Intention to grant announced |
Effective date: 20140603 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
GRAF | Information related to payment of grant fee modified |
Free format text: ORIGINAL CODE: EPIDOSCIGR3 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 689663 Country of ref document: AT Kind code of ref document: T Effective date: 20141015 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502011004520 Country of ref document: DE Effective date: 20141113 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: PL Ref legal event code: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150202 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150201 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150101 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150102 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502011004520 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
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 |
Effective date: 20150702 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150427 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150427 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150430 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150430 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150427 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150427 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110427 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 689663 Country of ref document: AT Kind code of ref document: T Effective date: 20160427 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160427 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CZ Payment date: 20180426 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20180423 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141001 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502011004520 Country of ref document: DE Owner name: SIEMENS MOBILITY GMBH, DE Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190427 |
|
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: 20190427 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20210416 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230619 Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220427 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240415 Year of fee payment: 14 |