EP2892971A1 - Device for heating at least one component, in particular an internal combustion engine of a vehicle - Google Patents
Device for heating at least one component, in particular an internal combustion engine of a vehicleInfo
- Publication number
- EP2892971A1 EP2892971A1 EP13756654.3A EP13756654A EP2892971A1 EP 2892971 A1 EP2892971 A1 EP 2892971A1 EP 13756654 A EP13756654 A EP 13756654A EP 2892971 A1 EP2892971 A1 EP 2892971A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- reactor
- reaction fluid
- reaction
- heat
- 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.)
- Withdrawn
Links
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/16—Materials undergoing chemical reactions when used
-
- 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
- F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
-
- 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
- F01P2060/16—Outlet manifold
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the present invention relates to the heating of at least one component.
- This component is for example a vehicle engine.
- the invention applies in particular, but not exclusively, to the heating of the engine during its startup.
- This engine is for example an internal combustion engine, gasoline or diesel.
- Heating the engine when it starts can reduce fuel consumption and / or pollutant emissions. This heat can also, in very cold conditions, be transmitted to the cabin to improve the comfort of the vehicle users.
- Reagents such as zeolite, are also known which can react in a highly exothermic manner with a reaction fluid and be subsequently regenerated.
- the application DE 39 22 737 discloses a device for heating a component comprising in series: a reactor capable of causing an exothermic reaction between a reagent and a reaction fluid, and a reaction fluid reservoir.
- a pump makes it possible to force the circulation of the reaction fluid towards the reactor.
- the invention responds to this need, according to one of its aspects, using a device for heating at least one component, the device comprising:
- a reactor capable of receiving a reagent capable of causing an exothermic reaction with the reaction fluid
- the reactor comprising at least one reaction fluid inlet connected to the pipe and at least one reaction fluid outlet connected to the pipe, and
- the device comprising a generator configured to generate in a zone of the pipe a pressure lower than that in the reactor.
- the device makes it possible to react in the reactor the reagent and the reaction fluid to release heat, especially in the form of steam.
- the presence of the generator allows the transfer of this heat in the pipe via the reaction fluid outlet, and the heating of the reaction fluid in the pipe downstream of the reactor.
- the reaction fluid at the outlet of the device thus heated can then transmit this heat to the component. For example, steam is sucked into the pipe by means of the generator and the reaction fluid in the liquid state in the pipe downstream of the reactor is thus heated.
- the pressure value generated by the generator in a zone of the pipe may make it possible to cause the transfer of the heat generated by the reaction in the reactor into the pipe.
- the reactor can be mounted in parallel with a portion of the pipe. Said portion of the pipe then extends between the branch connected to the reaction fluid inlet of the reactor and the branch connected to the reaction fluid outlet of the reactor.
- Said portion of the pipe may have the same structure as the rest of the pipe, for example the same diameter if it is a tubular pipe.
- the regeneration of the reagent can generate heat, for example in the form of steam, and the generator allows the suction of this vapor via the reaction fluid outlet to heat the reaction fluid flowing through the pipe without entering the reactor.
- the reaction fluid at the outlet of the device is thus heated and it can transmit this heat to the component.
- Steam is for example sucked by the generator into the pipe and the reaction fluid in the liquid state in the pipe is thus heated.
- the device can thus be weakly intrusive and easily integrable into already existing structures.
- the generator can be active, that is to say require a power supply to generate the depression in a zone of the pipe.
- This is for example a pump disposed in the branch connecting the reaction fluid outlet to the pipe.
- a depression is created in the area of the pipe at the junction between said branch and the pipe.
- the generator may be passive, that is to say it does not need to be energized to generate a vacuum in a zone of the pipe.
- the pipe may thus comprise a water pump forming the generator, the reaction fluid inlet being connected to the pipe upstream of the water pump and the reaction fluid outlet being connected to the lateral suction inlet of the water pipe. water horn. In this case, a depression is created in the water pump and in the area of the pipe downstream of the water pump.
- water pump means any mechanism using the Venturi effect and the surface tensions to reach a minimum pressure, which is in particular the saturated vapor pressure of the fluid passing through the water pump.
- a part of the reaction fluid flows through the pipe and the water pump without entering the reactor while the other part of the reaction fluid reacts exothermically with the reagent in the reactor, so that the water pump allows the transfer of this heat in the pipe via the reaction fluid outlet, and the heating of the reaction fluid in the pipe. Steam is for example sucked by the water pump and the reaction fluid in the liquid state in the pipe is thus heated.
- reaction fluid in the pipe and the water pump without entering the reactor allows the suction of heat, especially in the form of steam via the reaction fluid outlet for heating the fluid of the reaction medium.
- reaction running through the pipe without entering the reactor The water pump behaves like a vacuum pump.
- the invention meets the above requirement with the aid of a device for heating at least one component, the device comprising:
- a pipe adapted to convey a reaction fluid, said pipe comprising a water pump,
- a reactor capable of receiving a reagent capable of causing an exothermic reaction with the reaction fluid
- the reactor comprising at least one reaction fluid inlet and at least one reaction fluid outlet, the reaction fluid inlet being connected to to the pipe upstream of the water pump and the reaction fluid outlet being connected to the lateral suction port of the water pump, and
- the device may include an inlet valve configured to selectively interrupt fluid communication between the conduit and the reaction fluid inlet of the reactor. Depending on the position of this inlet valve, the reaction fluid travels through the pipe without entering the reactor or the reaction fluid is divided between a portion passing through the pipe without entering the reactor and a portion entering the reactor. The reactor is then arranged in parallel with the portion of the pipe disposed between the branch connected to the reaction fluid inlet and the branch connected to the reaction fluid outlet.
- valve means any means to interrupt or allow fluid communication.
- the inlet valve can be controllable. This is for example a valve provided with a controllable actuator. Alternatively, the inlet valve may be integrated with an injector which is controlled when it is desired that reaction fluid enters the reactor.
- the ratio between the flow rate of the part of the reaction fluid entering the reactor and the flow rate of the reaction fluid part passing through the pipe without entering the reactor is, for example, between 1% and 5%, being, for example, 1.5%
- the device may include an outlet valve configured to selectively interrupt fluid communication between the reaction fluid outlet of the reactor and the conduit.
- the outlet valve can be controllable or not. This is for example a check valve.
- the opening or closing of the outlet valve may depend only on the difference between the pressure in the reactor and the pressure in the pipe at the junction between the pipe and the branch connecting the reaction fluid outlet and the conduct. In the absence of reaction in the reactor, the circulation of reaction fluid in the pipe may cause the valve to open to suck up the air remaining in the reactor.
- the invention further relates, according to another of its aspects, to a heating assembly of at least one component, comprising:
- the exchange circuit and the pipe may together form a closed circuit.
- a single fluid can flow successively in the exchange circuit and in the pipe.
- No heat exchanger or condenser may be interposed between the pipe and the exchange circuit.
- the closed circuit thus obtained may be devoid of condenser.
- the condensation of the steam at the outlet of the reactor can occur in the pipe during the contact between this steam and the reaction fluid, and the heat released by this condensation heats the reaction fluid at the outlet of the device.
- a same fluid, namely the reaction fluid, can be used for:
- the component is for example a heat engine and the exchange circuit and the pipe can form the cooling circuit of this engine.
- the reactor can be configured so that the maximum volume of reaction fluid in the reactor is between 20 and 50% of the maximum volume of reaction fluid in the closed circuit formed by the exchange circuit and the pipe.
- the exothermic reaction is the adsorption of water by the zeolite
- the amount of zeolite in the reactor may be such that the the volume of reaction fluid adsorbed during this exothermic reaction is between 20 and 30%, being in particular equal to 25%, of the volume of reaction fluid in the closed circuit before the reaction occurs.
- the regeneration circuit may be formed by a portion of the exhaust gas circuit of the engine.
- the heat engine is for example an internal combustion engine, gasoline or diesel.
- the cooling circuit may comprise a pump, a thermostat and a heat exchanger allowing a heat exchange between the cooling circuit and the engine.
- the device can be connected in series in the closed circuit with the motor and / or the pump, for example.
- the assembly may be devoid of any other heat exchanger and condenser.
- the radiator or any other element of the exchange circuit, can form a volume of expansion favoring the suction in the pipe of the heat present in the reactor.
- Another subject of the invention is a method for heating at least one component of an assembly comprising, besides said component:
- the device comprising:
- a reactor receiving a reagent capable of causing an exothermic reaction with the reaction fluid, the reactor comprising at least one reaction fluid inlet and at least one reaction fluid outlet, the reaction fluid inlet being connected to the pipe and the reaction fluid outlet being connected to pipe,
- a generator configured to generate in a zone of the pipe a pressure lower than that in the reactor
- Another subject of the invention is, according to another of its objects, a method of heating at least one component of an assembly comprising, besides said component:
- a pipe said pipe being connected to the exchange circuit and comprising a water pump
- a reactor receiving a reagent capable of causing an exothermic reaction with the reaction fluid, the reactor comprising at least one reaction fluid inlet and at least one reaction fluid outlet, the reaction fluid inlet being connected to the pipe upstream of the water pump and the reaction fluid outlet being connected to the lateral suction port of the water pump, and
- the reactor can be mounted in parallel with a portion of the pipe.
- the pressure value generated by the generator in a zone of the pipe can make it possible to cause the transfer of the heat generated by the reaction in the reactor into the pipe.
- a controllable inlet valve may be arranged to selectively interrupt fluid communication between the conduit and the reactor, and this valve may be actuated to allow a portion of the reaction fluid to flow into the reactor to cause exothermic reaction whose heat is transmitted at least to the component by the other part of the reaction fluid flowing in the pipe into the reactor.
- This inlet valve is for example part of an injector. When it is desired to heat the component, it acts on the inlet valve to cause the reaction.
- the regeneration of the reagent can release heat into the reactor and this heat is transmitted at least to the component by the reaction fluid circulating in the pipe without entering the reactor.
- the inlet valve may be controlled to prevent the reaction fluid in the conduit from entering the reactor. It is thus possible, when it is desired to heat the component while the reaction has already taken place, to regenerate the reagent to generate heat in the reactor and to transmit this heat to the component.
- the reagent is zeolite and the reaction fluid is an aqueous solution.
- aqueous solution designates both water alone and a mixture of water and one or more other components in greater or lesser proportions relative to water.
- An example of such an aqueous solution is a mixture of water and glycol, for example in equal proportions.
- the zeolite may be in the form of beads stacked in the reactor. The zeolite can be anhydrous before the reaction with the reaction fluid.
- the exothermic reaction in the reactor can be a water adsorption reaction with the anhydrous zeolite, the zeolite having in particular a storage capacity of 300 Wh per 1 kg of zeolite.
- the exothermic reaction between the zeolite and the water corresponds to the adsorption of water by the zeolite and leads to a vaporization of water which is sucked into the reaction fluid outlet thanks to the depression generated in the driven by the generator, especially in the case where a water pump is used through the circulation in the liquid state of reaction fluid in the water pump.
- the heat generated by the reaction in the form of steam is thus forced to reach the pipe where it condenses on contact with the aqueous liquid solution. The heat of condensation can then heat the aqueous solution.
- the regeneration of the zeolite corresponds to the desorption of water from the zeolite, the desorbed water being vaporized and then sucked into the reaction fluid outlet thanks to the depression generated in the pipe by the generator, particularly in the case where a water pump is used thanks to the circulation in the liquid state of reaction fluid in the water pump.
- the heat generated by the regeneration reaction in the form of steam then gains the pipe where it condenses in contact with the aqueous liquid solution. The heat of condensation can then heat this aqueous solution.
- the same component can be heated by the heat resulting from the reaction between the reaction fluid and the reagent and by the heat resulting from the regeneration of the reagent.
- heat from the regeneration of the reagent can be used to heat another component.
- the method can be implemented to heat at least one heat engine, the exchange circuit being then the engine cooling circuit and the regeneration circuit forming a portion of the exhaust gas circuit.
- the exchange circuit can be devoid of condenser and only a heat exchanger with the engine can be provided.
- the reaction fluid is the cooling liquid, in particular a liquid mixture of water and glycol.
- the cooling circuit may also include other pipes, a thermostat, a pump and a radiator.
- the engine can be a motor vehicle engine.
- the method can be applied within a motor vehicle but other than to heat the engine of the vehicle.
- the component may be at least one of the gearbox, a de-icing system and an air conditioning and / or heating system of the passenger compartment, a window wiper system (s) vehicle or a vehicle battery.
- the method can be implemented when starting the heat engine, in particular to heat the latter.
- the method can be implemented prior to starting the engine of the vehicle, the latter then not necessarily a heat engine.
- the implementation of the method can be carried out in response to a set point imposed by the user of the vehicle or be automatic, for example after detection of a user action, such as unlocking the vehicle doors, the insertion of the key of contact or the opening of a door of the vehicle, for example.
- the method then allows a pre-conditioning of certain components of the vehicle.
- This preconditioning can make it possible to defrost windows of the vehicle or to heat the oil of the gearbox, for example.
- This pre-conditioning can furthermore or alternatively make it possible to heat the oil or the water in the engine and / or the passenger compartment of the vehicle and / or the product for wiping the window (s) of the vehicle.
- FIG. 1 schematically represents a device heating according to an exemplary implementation of the invention
- FIGS 2 to 4 illustrate different phases of use of the device of Figure 1 to generate heat
- Figures 5 to 9 illustrate an example of use of the device of Figures 1 to 4 for heating a motor vehicle engine.
- This device can be used to heat one or more components, for example a heat engine, especially a motor vehicle, as will be seen later.
- the device 1 comprises a pipe 2 capable of conveying a reaction fluid and a reactor 3 in which a reagent reacting with the reaction fluid in an exothermic manner is placed.
- the reactor 3 can be sealed vis-à-vis the outside.
- the device 1 comprises a generator 4 configured to generate in a zone of the pipe 2 a pressure lower than that prevailing in the reactor 3.
- the generator 4 is formed by a water pipe 4 of which is provided the pipe 2
- a branch 5 originates in the pipe 2 upstream of the water pump 4 and this branch 5 allows the supply of reaction fluid reactor 3.
- the Reactor 3 comprises two reaction fluid inlets, but the invention is not limited to a particular number of reaction fluid inputs.
- Each reaction fluid inlet is in the example considered associated with an inlet valve 7, to interrupt or allow fluid communication between the pipe 2 and the reactor 3.
- This valve 7 may be a component coupled to an actuator. Alternatively, and as shown, this valve 7 can be integrated into an injector
- the reactor 3 may comprise one or more reaction fluid outlets connected by a branch 8 to the lateral suction of the water pump 4. As shown in FIG. 1, one or more outlet valves 9 are provided for allow or interrupt the fluid communication between the reactor 3 and the water pump 4. In the example considered, used as an outlet valve 9 a check valve.
- the device 1 further comprises a circuit 10 for regenerating the reagent in the reactor 3.
- the regeneration circuit is in the example described in the form of one or more conduits extending through the reactor 3. It can be act straight lines or pipes each carrying one or more return trips in the reactor 3.
- the reagent is zeolite and the reaction fluid is an aqueous solution formed by a mixture of water and glycol.
- the device 1 can be used cyclically, each cycle comprising successively:
- reaction phase in which an exothermic reaction between the reaction fluid and the reagent takes place, this phase being initiated when the reaction fluid is brought into contact with the reagent.
- the heat released is then transmitted to the component, a regeneration phase during which the reagent and the reaction fluid are returned to the state they had before the exothermic reaction.
- This regeneration phase is carried out in particular by bringing heat into the reactor,
- the exothermic reaction may be the adsorption of water by the zeolite and the regeneration can be obtained by heating the saturated zeolite strongly. in water.
- the regeneration can then correspond to the desorption of the previously adsorbed water.
- This water released in the form of steam can then condense.
- the glycol can be vaporized and accompany the steam.
- the temperature of the zeolite can be brought to about 250 ° C.
- the various components of the device 2 can be configured so that the heating phase can provide about 15 kW of heating power for about two minutes and that the regeneration phase lasts about twenty minutes.
- reaction fluid When it is desired to initiate the reaction phase, act on the inlet valve or valves 7 to put in fluidic communication the pipe 2 and the reactor 3. Reaction fluid then gains via the reaction fluid inlet (s). the reactor 3 in which it pours on the zeolite while another part of the reaction fluid simultaneously runs the portion 6 of the pipe
- the ratio between the diameter of the portion 6 of the pipe 2 between the branches 5 and 8 and the diameter of the branch 5 can be chosen so that approximately 1.5% of the reaction fluid flowing in the pipe 2 upstream of the branch 5 enters the reactor 3.
- reaction fluid in reactor 3 is in excess of the zeolite, part of the water is adsorbed by the zeolite to react exothermically while the other part of this water is vaporized due to the heat released. by the reaction.
- the reaction causes an increase in temperature and pressure in the reactor 3.
- the temperature reaches for example 150 ° C in the chamber while the pressure can reach 250 mbar.
- the vapor then comes into contact with the reaction fluid flowing in liquid form in the portion 6 of the pipe 2. This contact causes the condensation of the steam and the heating of the reaction fluid downstream of the water pump 4, as it can be seen in Figure 2 in view of the temperature diagrams present thereon.
- the reaction fluid thus heated can then transmit this heat to the component to be heated.
- the regeneration phase can take place immediately or after a time delay.
- fluid is circulated through the regeneration circuit 10 at an elevated temperature. This path of the regeneration fluid by a hot fluid increases the temperature in the reactor 3.
- the thus heated reaction fluid can transmit its heat to the same component as during the reaction phase or to another component.
- Figure 4 shows the storage phase corresponding to the non-use of the device 1 for heating.
- this phase which follows the regeneration phase and precedes that of reaction, the inlet valve 7 is closed.
- the pressure in the reactor 3 is close to 0 mbar and the reaction fluid passage in the liquid state in the portion 6 of the pipe 2 and in the water pump 4 may allow to suck up the air that would still be present in the reactor 3.
- the device 1 which has just been described with reference to FIGS. 1 to 4 thus makes it possible to generate heat cyclically in order to heat one or more components, each cycle allowing two distinct generations of heat:
- the device 1 allows a transfer of heat in the reactor 3 to the reaction fluid downstream of the water pump 4 without condenser or heat exchanger.
- the device 1 is used to heat a heat engine during its startup, this engine belonging in particular to a motor vehicle.
- This is for example a gasoline or diesel internal combustion engine.
- the device 1 is then integrated within an assembly 20 comprising, besides the device 1, the heat engine 21 and an exchange circuit 22.
- the pipe 2 is in this example connected to the exchange circuit 22 to form with that a closed circuit traversed by the reaction fluid.
- the closed circuit forms in this example of use the cooling circuit of the engine 21 and the reaction fluid is the engine coolant, typically a mixture of water and glycol.
- the pipe 2 is connected in series with the heat engine 21 and a pump 25.
- the exchange circuit 22 further comprises a branch 26 downstream of the pump 25 between a return line 27 allowing the pumped coolant to recirculate in line 2 and an input of a thermostat 28.
- the thermostat is connected in series with a radiator 29 whose outlet joins the return line 27 at a point 30 to form the inlet of the pipe 2.
- the ratio between the maximum volume of coolant in the reactor 3 and the maximum volume of coolant in the closed circuit is here between 0.2 and 0.5.
- the amount of zeolite in the reactor 3 may be such that the exothermic reaction consumes approximately 25% of the total water volume in the closed circuit, this total water volume being defined as the fraction of water in the liquid in the entire closed circuit.
- the regeneration circuit 10 forms part of the exhaust gas circuit at the output of the heat engine 21.
- the temperature in the exchange circuit 22 may be about 20 ° C under a pressure of 1 bar.
- the coolant circulates in the closed circuit, as can be seen in FIG. 6. It is then possible to initiate the reaction phase in the device 1 by acting on the inlet valve 7 to bring about the coolant in contact with the zeolite in the reactor 3 to release heat, as mentioned
- the water pump 4 sucks the vapor released by the exothermic reaction in branch 8, as shown in FIG. reactor 3 reaches for example 150 ° C under a pressure of 300 mbar.
- This vapor comes into contact with the coolant in the water pump 4 and condenses, so that the coolant downstream of the water pump 4 and upstream of the engine 21 is heated by this heat of condensation.
- the thus heated coolant reaches for example a temperature of about 70 ° C under a pressure of 1.1 bar. Thanks to a heat exchanger (not shown), the coolant transfers this heat to the heat engine 21.
- the inlet valve 7 is actuated to interrupt the injection of cooling liquid into the reactor 3.
- the exhaust gases are circulated. in the regeneration circuit.
- the rise in temperature in reactor 3 leads to the desorption of water from the zeolite. This water is vaporized and sucked into the water pump 4, then condensing in contact with the cooling liquid circulating in the portion 6 of the pipe 2.
- the temperature in the reactor 3 reaches for example 250 ° C under a pressure of 600 mbar.
- the coolant downstream of the water pump can take a temperature of 90 ° C under a pressure of 1.1 bar. The coolant can then transmit this heat to the engine 21, for example.
- the cooling liquid circulates only in the exchange circuit 22 and the portion 6 of the pipe 2, without entering the reactor 3, so that everything happens as if the assembly 20 was then free of reactor 3.
- the temperature in the reactor can be about 250 ° C under pressure of 200 mbar and the coolant temperature can be about 80 ° C under a pressure of 1.1 bar.
- the device 1 is mounted in series with the component to be heated, here the heat engine 21, the device 1 may alternatively be arranged in the return line 27.
- the generator 4 can be made otherwise than by using a water pump, for example by means of a pump disposed in the branch 8 downstream of the outlet valve 9.
- the device 1 can be used to heat one or more components of a vehicle at other times than when starting the engine of the latter.
- the device 1 may for example heat one or more components before starting the engine, performing a pre-conditioning of this or these components.
- This pre-conditioning can result from an order given by the user of the vehicle before it starts the vehicle, for example pressing a trigger button of the device 1.
- the pre-conditioning results from an automatically generated order, for example because of the detection of the entry into the vehicle of a user, in particular the insertion of the ignition key, the unlocking of the doors or the opening of a door.
- the device 1 can thus transfer, prior to starting the engine, heat to a window defrosting system, for example the windshield of the vehicle, to the gearbox of the vehicle.
- a window defrosting system for example the windshield of the vehicle
- vehicles in particular for heating the oil thereof, or in the passenger compartment of the vehicle, for the comfort of the user or users of the vehicle.
- the heat engine may for example be other than a vehicle engine, and in particular a motor vehicle.
- the reagent when the reagent is zeolite, the latter may be in the form of beads having large pores, for example between 0.3 and 0.8 nm, to promote contact between the reaction fluid and zeolite.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Exhaust Gas After Treatment (AREA)
- Air-Conditioning For Vehicles (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1257682A FR2994476B1 (en) | 2012-08-08 | 2012-08-08 | DEVICE FOR HEATING AT LEAST ONE COMPONENT, IN PARTICULAR A VEHICLE HEAT ENGINE |
PCT/FR2013/051871 WO2014023900A1 (en) | 2012-08-08 | 2013-08-01 | Device for heating at least one component, in particular an internal combustion engine of a vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2892971A1 true EP2892971A1 (en) | 2015-07-15 |
Family
ID=47022893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13756654.3A Withdrawn EP2892971A1 (en) | 2012-08-08 | 2013-08-01 | Device for heating at least one component, in particular an internal combustion engine of a vehicle |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150198132A1 (en) |
EP (1) | EP2892971A1 (en) |
JP (1) | JP6275717B2 (en) |
FR (1) | FR2994476B1 (en) |
WO (1) | WO2014023900A1 (en) |
Families Citing this family (1)
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US20170241308A1 (en) * | 2016-02-24 | 2017-08-24 | Ford Global Technologies, Llc | Oil maintenance strategy for electrified vehicles |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE484235C (en) * | 1926-06-04 | 1929-10-15 | Willy Koebe | Centrifugal conveyor pump operated by an internal combustion engine |
JPS61175524U (en) * | 1985-04-22 | 1986-11-01 | ||
DE3922737A1 (en) * | 1989-07-11 | 1991-01-24 | Bayerische Motoren Werke Ag | Extraction of reaction heat in engine - involves condenser placed in container with zeolite |
JPH07180539A (en) * | 1993-12-24 | 1995-07-18 | Mitsubishi Electric Corp | Chemical heat generating device |
US7037360B2 (en) * | 2002-08-15 | 2006-05-02 | Mitsubishi Chemical Corporation | Adsorbent for heat utilization system, adsorbent for regenerator system, regenerator system comprising the adsorbent, ferroaluminophosphate and method for production thereof |
JP5102832B2 (en) * | 2006-07-20 | 2012-12-19 | ボルボ ラストバグナー アーベー | Cooling system |
JP2009041484A (en) * | 2007-08-09 | 2009-02-26 | Toyota Motor Corp | Engine warming-up acceleration system |
JP5102667B2 (en) * | 2008-03-19 | 2012-12-19 | 本田技研工業株式会社 | Vehicle warm-up system |
JP2010053830A (en) * | 2008-08-29 | 2010-03-11 | Honda Motor Co Ltd | Vehicle warming-up system |
-
2012
- 2012-08-08 FR FR1257682A patent/FR2994476B1/en not_active Expired - Fee Related
-
2013
- 2013-08-01 US US14/420,047 patent/US20150198132A1/en not_active Abandoned
- 2013-08-01 EP EP13756654.3A patent/EP2892971A1/en not_active Withdrawn
- 2013-08-01 JP JP2015525925A patent/JP6275717B2/en not_active Expired - Fee Related
- 2013-08-01 WO PCT/FR2013/051871 patent/WO2014023900A1/en active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2014023900A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014023900A1 (en) | 2014-02-13 |
JP6275717B2 (en) | 2018-02-07 |
FR2994476B1 (en) | 2018-06-29 |
US20150198132A1 (en) | 2015-07-16 |
JP2015524536A (en) | 2015-08-24 |
FR2994476A1 (en) | 2014-02-14 |
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