EP2567083A2 - Vorwärmanlage zum vorwärmen grosser dieselmotoren - Google Patents
Vorwärmanlage zum vorwärmen grosser dieselmotorenInfo
- Publication number
- EP2567083A2 EP2567083A2 EP11717999A EP11717999A EP2567083A2 EP 2567083 A2 EP2567083 A2 EP 2567083A2 EP 11717999 A EP11717999 A EP 11717999A EP 11717999 A EP11717999 A EP 11717999A EP 2567083 A2 EP2567083 A2 EP 2567083A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- temperature circuit
- preheating
- low
- 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.)
- Granted
Links
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 an inlet branch for connecting the high-temperature circuit and the low-temperature circuit is arranged, and a return ⁇ run are provided in which a return branch for connection of the high-temperature circuit and the Niedertempera ⁇ turnikanks is arranged.
- Such a preheating circuit is known from practice.
- the ⁇ selmotoren and in particular large diesel engines that used in locomotives or railcars of a rail vehicle ⁇ the, can not be started in the cold state.
- a preheating system is provided which is driven electrically or by means of fuel.
- the cooling liquid of the diesel engine is heated, whereby the cooling liquid is circulated via 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 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 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. In the Never ⁇ dertemperaturnikank also other modules can be involved beyond. 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 enables the release of heat during operation of the diesel engine.
- both cooling circuits have radiator thermostats, which are ver ⁇ connected with a bypass of the respective radiator and with 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 a previously set at the radiator thermostat operating temperature, the radiator thermostat opens to the radiator and closes the bypass, so that the circulation subsequently ⁇ chd only on the respective radiator.
- both radiator thermostats are only open towards the bypass, so that the preheated heat exchange fluid is not conducted via the radiator.
- 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 thermos ⁇ tatventil a circulation of the heat exchange liquid either in the high-temperature circuit or the low-temperature circuit in response to a switching temperature ⁇ enabled light.
- a thermostatic valve is arranged in the flow of Voriserrm Vietnamesees, which arises after the connection of the flow and the return of Voriserrman ⁇ position with the high-temperature circuit and the Niedertempera ⁇ tur Vietnamesemaschinelauf of the diesel engine, which represents a switchable branch point ⁇ .
- the thermostatic valve can should be laid down if the heat exchange fluid is circulated to heat the ⁇
- the selmotors either the high-temperature circuit, or via the low-temperature circuit ⁇ . In this way, it is possible to direct the recirculation process selectively via one of the two circuits or then cancel if, for example, the necessary operating temperature he ⁇ is sufficient. In this way, losses can be avoided and the preheating phase can thus be shortened.
- each thermostatic valve is connected to a Tempe ⁇ temperature sensor, which provides a control signal for opening or closing the thermostatic valve.
- a Tempe ⁇ temperature sensor which provides a control signal for opening or closing the thermostatic valve.
- the thermostatic valve and temperature sensor are formed thermostatic valve and temperature sensor 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 is for example a mechanical connection, where ⁇ is transmitted hydraulically or pneumatically to the thermostatic valve in the extension of a temperature sensitive substance, or a temperature-sensitive material in the temperature sensor on the completed media line.
- connection is an electrical Signalver ⁇ bond, for example a cable-guided Medunikationslei ⁇ processing.
- a wireless communication connection for example via radio, Bluetooth or the like, between the temperature sensor and thermostatic valve is 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. Deviating from this switching occurs gradually descend ⁇ Lich, so so slowly that is made via a relevant with regard to a detectable heat exchange period of time of circulation both the low temperature as well as on 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 thermostat valve switches, so that the circulation pump circulates the preheating at least the heated heat from ⁇ exchange fluid via the high-temperature ⁇ circuit.
- the thermostatic valve works preferably mechanically, namely by thermal expansions of thermostatic cartridges, which could also be arranged away from the valve ⁇ nen. In these cases, it is not a digital switchover, but a gradual opening of the thermostatic valve. Thus, high temperature and low temperature ⁇ tur Vietnamese Stamm are heated across the same time on the commutation.
- 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. Subsequently falls below the remaining in the low Tempe ⁇ ratur Vietnamese Vietnamese valve then heat exchange fluid at the changeover, it comes to a RETRY ⁇ th switching of the thermostatic valve and thus to a ninth ⁇ he enhanced circulating through the low-temperature circuit.
- the thermostatic valve If, for example, by the thermostatic valve, the first Ver ⁇ bond between flow and low-temperature circuit ge ⁇ opens, heating the diesel engine via the Never ⁇ takes place dertemperaturniklauf. Just before the temperature of the heat ⁇ exchange medium in the low-temperature circuit reaches the switching ⁇ temperature of the radiator thermostat low temperature ⁇ run and this would then release the connection to the radiator with heat loss to wake, the thermostatic valve interrupts the circulation through the low-temperature circuit and opens the connection between flow and high temperature circuit, so that it is heated until the operating temperature is reached.
- the flow branching check valves downstream prevent subsequent to the pre-heating during engine the cooling liquid is circulated via ⁇ the components of the preheating vice.
- each thermostatic valve connectable to the high-temperature circuit high-temperature bypass un connected to the low-temperature circuit Niedertem peraturbypass connected in parallel, wherein shut-off valves are arranged in the high-temperature turbypass ⁇ 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. 2 shows another embodiment of the inventive preheating
- Figure 3 show another embodiment of the OF INVENTION ⁇ to the invention preheating.
- 1 shows a first embodiment of the preheating 1 Inventive ⁇ invention that has a pre-heating unit 2 for heating a heat exchange fluid, and a fi ⁇ Gürlich not shown recirculation pump which circulates the heated heat exchange fluid via a lead 3 and a return.
- the preheating system 1 further has a power supply, not shown here, here a Batte ⁇ rie to power 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 area or in other words high-temperature circuit 8 and a Nie ⁇ dertemperatur Society or Niedertemperatur Vietnamese- running 9 from.
- the flow 3 of the preheater 1 is connected via the preheating branch 3 H with the high-temperature circuit 8 and the preheating branch 3 T with the low-temperature circuit 9 on the input side, the high-temperature circuit 8 on the output side with the return branch 4 H and the low-temperature circuit 9 output side with the Return branch 4 T is connected ⁇ ver.
- Heat exchange points 11 and 12 of the diesel engine of the high-temperature circuit 8 and the Niedertem ⁇ peratur Vietnamese Marvels 9 are also shown schematically.
- the high-temperature circuit 8 has a high tempera ⁇ turkühlerthermostat 13.
- the low-temperature circuit 9 has a low-temperature cooling thermostat 14.
- the kuh ⁇ lerthermostate 14, 13 are respectively equipped with a condenser 15 connected ver ⁇ which is provided by a fan sixteenth
- Each cooler 15 can be bridged via a bypass 17 when the inlet side detected by the respective radiator thermostat 13 and 14, a temperature bathMIflüs ⁇ stechnik is smaller than the set at the respective radiator thermostat 13, 14 operating temperature.
- the temperature detection of the respective radiator thermostats 13 or 14 is shown in FIG. 1 by the dashed line.
- the respective fan 16 is bridged both in the high-temperature circuit 8 and in the low-temperature circuit 9.
- the flow branch point 5 is formed by a thermostatic valve 18, which is connected via a communication connection 19 to a temperature sensor (not shown in FIG.
- the communication link 19 is either a media line, which transmits the expansion of the temperature sensitive substance by the temperature sensor of the thermostatic valve, or an electrical or optical data transmission line via which the output side, provided by the temperature sensor measurement signals to the thermostat valve 18 via ⁇ ,
- the mode of operation of the preheating system shown in FIG. 1 is as follows: To start the diesel engine 7, it must be heated .
- the preheating unit 2 has the elekt ⁇ driven or fuel-driven operated pre-heating unit 2, which heats the heat exchange fluid.
- the just ⁇ if driven by the battery of the preheating, not shown circulating pump circulates the heated choiraus ⁇ exchange fluid on 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 he heated heat exchange liquid 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 Vormaschinerm ⁇ system 1.
- the preheating is thus by the flow 3, the low-temperature circuit 9 and the return. 4 educated.
- the thermostatic valve 18 is set to a switching temperature. Exceeds the temperature of the heat exchange fluid in the low-temperature circuit 9 Umschalttempe ⁇ 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 Thermos ⁇ tatventils 18 is located just below the switching temperature of the NIE dertemperaturkühlerthermostats 14, so that the cooler 15 is bypassed during preheating and no undesired balver- loss arises.
- 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.
- FIG 2 shows a further embodiment of the OF INVENTION ⁇ to the invention preheating 1, which largely corresponds to the preheating system 1 shown in Figure 2, except that in the pre-run 3 of the aforementioned system 1, both in the flow path 3 H as well as in the flow path 3, T check valves 20 are arranged on ⁇ prevent the heat exchange fluid in the diesel mode opposite to the direction shown in Figure 1 on the preheating plant 1 is circulated.
- FIG. 3 shows a further embodiment of the OF INVENTION ⁇ to the invention preheating 1, wherein the thermostat valve 18 once through a high-temperature bypass 21 and a NIE is bridged dertemperaturbypass 22nd
- the high temperature Pass 21 and the low-temperature bypass 22 each have an electrically controllable shut-off valve 23.
- a whe ⁇ res controllable shut-off valve 23 is arranged on the input side of the thermostatic valve 18.
- 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 pre ⁇ heat plant 1, wherein the input side of Ther ⁇ mostatventils 18 arranged shut-off valve 23 in its locked position is transferred.
- Such from the thermostat 18 ent ⁇ coupled connection of the cooling circuits 8, 9 with the preheating ⁇ system 1 is desirable, for example, in Zuloom vulgar tribe, 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)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11717999T PL2567083T3 (pl) | 2010-05-03 | 2011-04-27 | Instalacja ogrzewania wstępnego do ogrzewania wstępnego dużych silników diesla |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019664A DE102010019664A1 (de) | 2010-05-03 | 2010-05-03 | Vorwärmanlage zum Vorwärmen großer Dieselmotoren |
PCT/EP2011/056597 WO2011138194A2 (de) | 2010-05-03 | 2011-04-27 | Vorwärmanlage zum vorwärmen grosser dieselmotoren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2567083A2 true EP2567083A2 (de) | 2013-03-13 |
EP2567083B1 EP2567083B1 (de) | 2014-10-01 |
Family
ID=44118923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11717999.4A Active EP2567083B1 (de) | 2010-05-03 | 2011-04-27 | Vorwärmanlage zum vorwärmen grosser dieselmotoren |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2567083B1 (de) |
DE (1) | DE102010019664A1 (de) |
PL (1) | PL2567083T3 (de) |
WO (1) | WO2011138194A2 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223196B (de) * | 1962-12-24 | 1966-08-18 | Kloeckner Humboldt Deutz Ag | Fluessigkeitskuehlanlage fuer aufgeladene Brennkraftmaschinen |
DE10006873B4 (de) * | 1999-10-16 | 2006-09-14 | Richard Ambros | Verfahren zur exakten Temperaturregelung eines für die Motorkühlung und die Beheizung eines Fahrzeuges vorgesehenen Kühlwassers |
US7028915B2 (en) * | 2001-04-27 | 2006-04-18 | Electro-Motive Diesel, Inc. | Layover heating system for a locomotive |
DE102005029918B4 (de) * | 2005-04-29 | 2010-05-06 | Mtu Friedrichshafen Gmbh | Kühlsystem für eine aufgeladene Brennkraftmaschine |
DE102008032529A1 (de) * | 2008-07-10 | 2010-01-14 | Volkswagen Ag | Verfahren zum Betrieb eines Kühlmittelkreislaufs und eine mit einem Wärmetauscher ausgestattete Einrichtung zur Durchführung des Verfahrens |
-
2010
- 2010-05-03 DE DE102010019664A patent/DE102010019664A1/de not_active Withdrawn
-
2011
- 2011-04-27 PL PL11717999T patent/PL2567083T3/pl unknown
- 2011-04-27 EP EP11717999.4A patent/EP2567083B1/de active Active
- 2011-04-27 WO PCT/EP2011/056597 patent/WO2011138194A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011138194A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011138194A2 (de) | 2011-11-10 |
DE102010019664A1 (de) | 2011-11-03 |
PL2567083T3 (pl) | 2015-03-31 |
WO2011138194A3 (de) | 2011-12-29 |
EP2567083B1 (de) | 2014-10-01 |
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