WO2013114428A1 - 熱電発電装置 - Google Patents
熱電発電装置 Download PDFInfo
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- WO2013114428A1 WO2013114428A1 PCT/JP2012/000586 JP2012000586W WO2013114428A1 WO 2013114428 A1 WO2013114428 A1 WO 2013114428A1 JP 2012000586 W JP2012000586 W JP 2012000586W WO 2013114428 A1 WO2013114428 A1 WO 2013114428A1
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- thermoelectric conversion
- conversion module
- steam
- thermoelectric
- temperature
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat
- F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat the device being thermoelectric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
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- 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
- F01P2060/08—Cabin heater
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- 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
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a thermoelectric power generator, and more particularly to a thermoelectric power generator that performs thermoelectric power generation using exhaust gas discharged from an internal combustion engine.
- exhaust gas or the like discharged from an internal combustion engine of a vehicle such as an automobile contains thermal energy, and therefore, if the exhaust gas is discarded as it is, the thermal energy is wasted. Therefore, the thermal energy contained in the exhaust gas is recovered by the thermoelectric generator and converted into electrical energy, and for example, the battery is charged.
- thermoelectric power generator As a conventional thermoelectric power generator of this type, the high temperature part of the thermoelectric conversion module is brought into contact with the exhaust pipe into which the exhaust gas discharged from the internal combustion engine is introduced, and the cooling water flows through the low temperature part of the thermoelectric conversion module.
- the thing contacted with the water pipe is known (for example, refer to patent documents 1).
- thermoelectric conversion module is configured to include a thermoelectric conversion element such as a semiconductor, an electrode, a heat receiving substrate serving as a high temperature portion, a heat radiating substrate serving as a low temperature portion, and the like, and a high temperature exhaust gas and temperature using the Seebeck effect.
- the low-temperature cooling water generates power by generating a temperature difference between the high temperature portion and the low temperature portion of the thermoelectric conversion module.
- thermoelectric generator high temperature (eg, about 500 ° C.) exhaust gas is introduced into the high temperature portion of the thermoelectric conversion module, and low temperature (eg, 40 ° C.) cooling water is introduced into the low temperature portion. Since it has introduced, the temperature difference of the high temperature part and low temperature part of a thermoelectric conversion module will become large.
- thermoelectric conversion module expands with respect to the low-temperature part, and a large thermal strain is generated, which may damage the thermoelectric conversion module.
- thermoelectric conversion module it is necessary to downsize the thermoelectric conversion module, but when the thermoelectric conversion module is downsized, in order to secure the amount of power generation of the thermoelectric conversion module, A large number of thermoelectric conversion modules are required.
- thermoelectric power generation apparatus Therefore, a large number of wirings for connecting a large number of thermoelectric conversion modules are required, and the manufacturing work of the thermoelectric power generation apparatus becomes troublesome and the manufacturing cost of the thermoelectric power generation apparatus increases.
- the present invention has been made to solve the above-described conventional problems, and can reduce the thermal strain of the thermoelectric conversion module and increase the size of the thermoelectric conversion module, facilitating the manufacturing work and the manufacturing cost.
- An object of the present invention is to provide a thermoelectric generator capable of reducing the above.
- thermoelectric power generation device is a thermoelectric power generation device including a thermoelectric conversion module that performs thermoelectric power generation according to a temperature difference between a high temperature portion and a low temperature portion, and is discharged from an internal combustion engine.
- An exhaust gas introduction part that introduces exhaust gas into the high temperature part, and a steam circulation part that introduces the vapor of the refrigerant heated by the heat of the exhaust gas into the low temperature part are configured.
- thermoelectric generator exhaust gas discharged from the internal combustion engine is introduced into the high-temperature portion of the thermoelectric conversion module, and refrigerant vapor heated by the heat of the exhaust gas is introduced into the low-temperature portion of the thermoelectric conversion module. Therefore, it is possible to prevent the temperature difference between the high temperature portion and the low temperature portion from becoming excessively large, and to suppress thermal strain of the thermoelectric conversion module.
- thermoelectric conversion module can be increased in size, and wiring and the like can be reduced when the thermoelectric conversion module is attached to the thermoelectric generator. As a result, the manufacturing operation of the thermoelectric generator can be facilitated, and the manufacturing cost of the thermoelectric generator can be reduced.
- the thermoelectric conversion module includes a first thermoelectric conversion module having a high operating temperature range and a second thermoelectric conversion module having a lower operating temperature range than the first thermoelectric conversion module.
- the steam circulation part is composed of a first steam circulation part and a second steam circulation part communicating with the first steam circulation part, and a main body case that houses the first thermoelectric conversion module And the exhaust gas introduction part provided in the main body case and facing the high temperature part of the first thermoelectric conversion module, and attached to the outside of the main body case, to the low temperature part of the first thermoelectric conversion module
- the first steam circulation part facing the second steam circulation part provided in the upper part of the main body case, and the second steam circulation part so that the low temperature part faces the second steam circulation part.
- the second thermoelectric conversion module provided in the upper part of the air circulation part, and the cooling water circulation part provided in the upper part of the second thermoelectric conversion module so as to face the high temperature part of the second thermoelectric conversion module And may be configured.
- thermoelectric generator the exhaust gas is introduced into the high temperature part of the first thermoelectric conversion module having a high operating temperature range, and the steam is introduced into the low temperature part of the first thermoelectric conversion module, so that the first thermoelectric conversion module It is possible to prevent the temperature difference between the high temperature part and the low temperature part from becoming excessively large, and to suppress the thermal strain of the first thermoelectric conversion module.
- thermoelectric conversion module since steam is introduced into the high temperature part of the second thermoelectric conversion module whose operating temperature range is lower than that of the first thermoelectric conversion module, and cooling water is introduced into the low temperature part of the second thermoelectric conversion module, the second It is possible to prevent the temperature difference between the high temperature part and the low temperature part of the thermoelectric conversion module from becoming excessively large and to suppress the thermal strain of the second thermoelectric conversion module.
- thermoelectric conversion module in the region where the exhaust gas temperature is high, power is generated by the first thermoelectric conversion module and the second thermoelectric conversion module, and in the region where the exhaust gas temperature is low, power is generated by the second thermoelectric conversion module.
- the power generation can be performed in a wide temperature range, that is, in a wide driving range of the vehicle.
- thermoelectric conversion module since the steam of the same temperature is introduced in the low temperature part of the first thermoelectric conversion module and the high temperature part of the second thermoelectric conversion module, the low temperature part of the first thermoelectric conversion module and the second thermoelectric conversion module The temperature of the high temperature part can be equalized, and the power generation efficiency of the first thermoelectric conversion module and the second thermoelectric conversion module can be improved.
- thermoelectric generator is attached to the main body case so that the first steam circulation portion surrounds the main body case, and the first thermoelectric conversion module is opposed to the exhaust gas introduction portion.
- the main body case may be attached to both sides in the width direction.
- thermoelectric power generator is attached to the main body case so that the first steam circulation portion surrounds the main body case, and the width of the main body case is such that the first thermoelectric conversion module is opposed to the exhaust gas introduction portion. Since it is attached to both sides in the direction, the pressure can be evenly applied to the main body case by the pressure of the steam in the first steam circulation section.
- thermoelectric conversion module the vapor pressure is uniformly applied to the low temperature portion of the first thermoelectric conversion module, so that the contact pressure between the high temperature portion of the first thermoelectric conversion module and the exhaust gas introduction portion can be increased.
- the heat transfer efficiency to the high temperature part of the thermoelectric conversion module can be improved.
- the power generation efficiency of the first thermoelectric conversion module can be improved.
- thermoelectric generator may be configured to include a control unit that controls the pressure in the steam circulation unit based on the temperature of the exhaust gas introduced into the exhaust gas introduction unit. Since this thermoelectric power generator controls the pressure in the steam circulation part based on the temperature of the exhaust gas introduced into the exhaust gas introduction part, the power generation efficiency of the first thermoelectric conversion module can be improved.
- the first thermoelectric conversion module has a temperature range with high power generation efficiency, if the exhaust gas temperature can be estimated, what is the temperature of the steam, the first thermoelectric conversion module It can be estimated whether the power generation efficiency is maximized.
- saturated steam generated when a refrigerant is boiled at a predetermined temperature under a predetermined pressure has a correlation between pressure and temperature. Therefore, the steam is based on the temperature of the exhaust gas introduced into the exhaust gas introduction unit.
- the power generation efficiency of the first thermoelectric conversion module can be improved by controlling the pressure in the flow section and controlling the temperature of the saturated steam with respect to the temperature of the exhaust gas.
- the thermoelectric power generator may be configured to include a control unit that controls a pressure in the steam circulation part based on a temperature of the cooling water introduced into the cooling water circulation part.
- This thermoelectric power generator controls the pressure in the steam circulation part based on the temperature of the cooling water introduced into the cooling water circulation part, and controls the temperature of the saturated steam with respect to the temperature of the cooling water, so that the second The power generation efficiency of the thermoelectric conversion module can be improved.
- the second steam introduction unit is provided on the placement unit on which the second thermoelectric conversion module is placed, and the steam introduced into the second steam introduction unit. It may be comprised from what has a movable part displaced according to the pressure of this.
- thermoelectric power generation device a movable portion that is displaced according to the pressure of the steam in the second steam introduction portion is provided on the placement portion of the second steam introduction portion. rises so that the mounting portion can apply pressure evenly to the high temperature portion of the second thermoelectric conversion module.
- the contact pressure between the low temperature part of the second thermoelectric conversion module and the cooling water circulation part can be increased by uniformly applying the saturated steam pressure to the high temperature part of the second thermoelectric conversion module,
- the heat transfer efficiency to the low temperature part of the thermoelectric conversion module of 2 can be improved.
- the power generation efficiency of the second thermoelectric conversion module can be improved.
- thermoelectric power generator that can reduce the thermal strain of the thermoelectric conversion module and increase the size of the thermoelectric conversion module, thereby facilitating the manufacturing work and reducing the manufacturing cost. it can.
- FIG. 3 is a diagram showing an embodiment of a thermoelectric power generator according to the present invention, and is a cross-sectional view taken along arrow AA in FIG. 2.
- FIG. 3 is a diagram showing an embodiment of a thermoelectric generator according to the present invention, and is a cross-sectional view taken along the line BB in FIG. 2.
- thermoelectric power generating apparatus which concerns on this invention, and is a perspective view of the thermoelectric conversion module with a high operating temperature range. It is a figure which shows one Embodiment of the thermoelectric power generator which concerns on this invention, and is a perspective view of the thermoelectric conversion module with a low operating temperature area
- thermoelectric generator according to the present invention
- the engine is not limited to a gasoline engine.
- thermoelectric generator 1 to 8 are diagrams showing an embodiment of a thermoelectric generator according to the present invention.
- an engine 1 as an internal combustion engine mounted on a vehicle such as an automobile is formed by mixing air supplied from an intake system and fuel supplied from a fuel supply system at an appropriate air-fuel ratio. After the air-fuel mixture is supplied to the combustion chamber and combusted, the exhaust gas generated with this combustion is discharged from the exhaust system to the atmosphere.
- the exhaust system includes an exhaust manifold 2 attached to the engine 1 and an exhaust pipe 4 connected to the exhaust manifold 2 via a spherical joint 3.
- the exhaust manifold 2 and the exhaust pipe 4 An exhaust passage is formed.
- the spherical joint 3 functions to allow moderate vibration between the exhaust manifold 2 and the exhaust pipe 4 and not transmit vibration or movement of the engine 1 to the exhaust pipe 4 or transmit it with attenuation.
- the catalyst 5 installed upstream in the exhaust gas exhaust direction in the exhaust pipe 4 is a so-called start catalyst (S / C).
- the catalyst 6 installed downstream in the exhaust direction is a so-called main catalyst (M / C) or underfloor catalyst (U / F).
- These catalysts 5 and 6 are constituted by, for example, a three-way catalyst.
- This three-way catalyst exhibits a purifying action in which carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxide (NOx) are collectively changed to harmless components by a chemical reaction.
- coolant long life coolant
- the cooling water is led out from the outlet pipe 8 attached to the engine 1 and then supplied to the radiator 7, and is returned from the radiator 7 to the engine 1 through the cooling water reflux pipe 9.
- the radiator 7 cools the cooling water circulated by the water pump 10 by heat exchange with outside air.
- a bypass pipe 12 is connected to the reflux pipe 9, and a thermostat 11 is interposed between the bypass pipe 12 and the reflux pipe 9, and the amount of cooling water flowing through the radiator 7 and the bypass are bypassed by the thermostat 11. The amount of cooling water flowing through the pipe 12 is adjusted.
- a heater pipe 13 is connected to the bypass pipe 12, and a heater core 14 is provided in the middle of the heater pipe 13.
- the heater core 14 is a heat source for heating the passenger compartment using the heat of the cooling water.
- the air warmed by the heater core 14 is introduced into the vehicle interior by the blower fan 15.
- a heater unit 16 is configured by the heater core 14 and the blower fan 15.
- the heater pipe 13 is provided with an upstream pipe 18 a for supplying cooling water to a thermoelectric generator 17 described later, and between the thermoelectric generator 17 and the reflux pipe 9, the thermoelectric generator 17 to the reflux pipe 9 are provided.
- a downstream pipe 18b for discharging the cooling water is provided.
- thermoelectric power generation device 17 collects the heat of the exhaust gas discharged from the engine 1 and exhausts the exhaust gas. The heat energy is converted into electrical energy.
- thermoelectric generator 17 includes a main body case 20 having an exhaust pipe portion 19 as an exhaust gas introduction portion into which exhaust gas discharged from the engine 1 is introduced.
- an introduction pipe part 21 connected to the exhaust pipe 4 is provided upstream of the exhaust pipe part 19 in the exhaust direction, and a tail pipe 23 is provided downstream of the exhaust pipe part 19 in the exhaust direction.
- a discharge pipe portion 22 to be connected is provided.
- the exhaust gas discharged from the exhaust pipe 4 to the exhaust pipe section 19 via the introduction pipe section 21 is discharged from the exhaust pipe section 19 to the tail pipe 23 via the discharge pipe section 22, and then the tail pipe 23. Exhausted to the outside air.
- a plurality of heat absorption fins 24 are formed inside the exhaust pipe portion 19, and the heat absorption fins 24 transmit the heat of the exhaust gas to the exhaust pipe portion 19. ing.
- module chambers 25 and 26 are formed in the main body case 20 with the exhaust pipe portion 19 interposed therebetween.
- a thermoelectric conversion module 27 as a first thermoelectric conversion module is accommodated in the module chambers 25 and 26. .
- thermoelectric conversion module 27 is attached to both sides in the width direction of the main body case 20 so as to face each other with the exhaust pipe portion 19 interposed therebetween.
- the exhaust direction defined in the thermoelectric generator 17 of the present invention refers to the exhaust direction of the exhaust gas flowing through the exhaust pipe portion 19, and upstream and downstream are directions relative to the exhaust direction. . That is, the upstream side with respect to the thermoelectric generator 17 is the engine 1 side, and the downstream side is the tail pipe 23 side.
- the thermoelectric conversion module 27 has a temperature difference due to the Seebeck effect between a heat receiving substrate 31 made of insulating ceramics constituting the high temperature portion and a heat radiation substrate 32 made of insulating ceramics constituting the low temperature portion.
- a plurality of N-type thermoelectric conversion elements 33 and P-type thermoelectric conversion elements 34 that generate a corresponding electromotive force are installed, and the N-type thermoelectric conversion element 33 and the P-type thermoelectric conversion element 34 are connected via electrodes 35a and 35b. They are alternately connected in series.
- thermoelectric conversion modules 27 are provided in series along the exhaust direction in the module chambers 25 and 26 as shown in FIG. 2, and the thermoelectric conversion modules 27 adjacent in the exhaust direction are connected via wirings 36. Electrically connected.
- the heat receiving substrate 31 faces the exhaust pipe portion 19 and contacts the exhaust pipe portion 19, and the heat radiating substrate 32 faces a steam tank 37 described later.
- the electric power is supplied to the battery via a cable (not shown) by performing thermoelectric power generation according to the temperature difference between the heat receiving substrate 31 and the heat radiating substrate 32.
- the N-type thermoelectric conversion element 33 and the P-type thermoelectric conversion element 34 are made of a thermoelectric material such as Mg—Si, and have a characteristic that the thermoelectric conversion efficiency increases when the operating temperature range is about 400 ° C. to 500 ° C. Have. 2 and 3, the thermoelectric conversion module 27 is simplified.
- a steam circulation part and a steam tank 37 as a first steam circulation part are provided outside the body case 20 so as to surround the body case 20,
- the steam tank 37 is opposed to the heat dissipation substrate 32 of the thermoelectric conversion module 27 through the main body case 20.
- water Wo is stored as a refrigerant on the bottom surface of the steam tank 37, and the steam tank 37 is attached to the main body case 20 via a support bracket 38.
- the support bracket 38 may be provided, for example, separately from the upstream end and the downstream end of the main body case 20, or may be provided at the center in the exhaust direction of the main body case 20.
- a steam tank 40 as a steam circulation part and a second steam circulation part is provided on the upper part of the main body case 20 via a support base 39.
- communication holes 20 a, 39 a, and 40 a are formed in the upper right side of the main body case 20, the right side of the support base 39, and the lower right side of the steam tank 40, respectively. Are communicated through the communication holes 20a, 39a, 40a.
- the communication holes 20a, 39a, and 40a may be formed at regular intervals in the exhaust direction or may extend over the exhaust direction.
- thermoelectric conversion module 27 is generated by the temperature difference between the exhaust gas flowing in the exhaust pipe portion 19 and the saturated steam rising in the steam tank 37.
- the saturated steam rising in the steam tank 37 is introduced into the steam tank 40 through the communication holes 20a, 39a, and 40a.
- the upstream end and downstream end of the steam tanks 37 and 40 are closed (in FIG. 4, the upstream ends of the steam tanks 37 and 40 are shown), and the interiors of the steam tanks 37 and 40 are closed spaces. .
- the upper part of the steam tank 40 constitutes a mounting part 40b, and a cooling water tank 51 as a cooling water circulation part is provided in the mounting part 40b via a thermoelectric conversion module 41 as a second thermoelectric conversion module. Is provided.
- the cooling water tank 51 includes a cooling water introduction part 51a connected to the upstream pipe 18a and a cooling water discharge part 51b connected to the downstream pipe 18b.
- This cooling water tank 51 has a cooling water introduction part for the cooling water discharge part 51b so that the cooling water W introduced into the cooling water tank 51 from the cooling water introduction part 51a flows in the same direction as the exhaust gas exhaust direction.
- 51a is provided on the upstream side in the exhaust direction (see FIGS. 1 and 2).
- thermoelectric conversion module 41 has a temperature difference due to the Seebeck effect between a heat receiving substrate 42 made of insulating ceramics constituting a high temperature portion and a heat radiating substrate 43 made of insulating ceramics constituting a low temperature portion.
- a plurality of N-type thermoelectric conversion elements 44 and P-type thermoelectric conversion elements 45 that generate a corresponding electromotive force are installed, and the N-type thermoelectric conversion elements 44 and the P-type thermoelectric conversion elements 45 are interposed via the electrodes 46a and 46b. They are alternately connected in series.
- thermoelectric conversion modules 41 are provided in parallel in a direction orthogonal to the exhaust direction, and are provided in series along the exhaust direction.
- the adjacent thermoelectric conversion modules 41 are electrically connected via the wiring 47. Connected.
- thermoelectric conversion module 41 the heat receiving substrate 42 faces the steam tank 40 and faces the steam tank 40, and the heat dissipation substrate 43 faces the cooling water tank 51 and contacts the cooling water tank 51.
- the electric power is supplied to the battery through a cable (not shown) by performing thermoelectric power generation according to the temperature difference between the heat sink 43 and the heat dissipation substrate 43.
- the N-type thermoelectric conversion element 44 and the P-type thermoelectric conversion element 45 are made of a thermoelectric material such as Bi—Te, and have a characteristic that the thermoelectric conversion efficiency is high when the operating temperature range is about 100 ° C. to 200 ° C. Have. 2 to 4, the thermoelectric conversion module 41 is simplified.
- thermoelectric conversion module 27 of the present embodiment has a high operating temperature range, and the thermoelectric conversion module 41 has a low operating temperature range with respect to the thermoelectric conversion module 27.
- the mounting portion 40 b of the steam tank 40 is provided with a bellows-shaped movable portion 40 c, and the movable portion 40 c is saturated to be introduced into the steam tank 40. Displaceable by steam pressure. For this reason, the mounting part 40b is displaced in the vertical direction with the displacement of the movable part 40c.
- thermoelectric conversion module 41 when saturated steam is introduced from the steam tank 37 to the steam tank 40, the thermoelectric conversion module 41 is generated by the temperature difference between the saturated steam and the cooling water W flowing through the cooling water tank 51. At this time, the saturated steam introduced into the steam tank 40 is cooled by the cooling water W flowing through the cooling water tank 51 to become condensed water, and this condensed water is stored in the steam tank 40.
- the bottom of the steam tank 40 constitutes a tapered portion 40 d formed in a tapered shape so as to become lower from the right side to the left side, and the condensed water condensed in the steam tank 40 is In FIG. 3, it moves from the right to the left along the taper portion 40d.
- a reflux pipe 52 is provided at the left end of the steam tank 37 and the cooling water tank 51, and the steam tank 37 and the cooling water tank 51 communicate with each other through the reflux pipe 52.
- the reflux pipe 52 is configured to return the condensed water stored in the steam tank 40 from the steam tank 40 to the steam tank 37, and the condensed water returned to the steam tank 37 is stored on the bottom surface of the steam tank 37. Is done.
- the return pipe 52 is provided with an open / close valve 53, and the open / close valve 53 is a normally open electromagnetic valve.
- the on-off valve 53 is closed when a close signal is input from an ECU (Electronic Control Unit) 61, and is opened when the close signal is not input from the ECU 61.
- ECU Electronic Control Unit
- the steam tank 40 is connected with a pressure increasing / decreasing pump 54 such as a tube pump, a diaphragm pump or the like, and a normally closed on-off valve 55 is provided between the pressure increasing / decreasing pump 54 and the steam tank 40. ing.
- a pressure increasing / decreasing pump 54 such as a tube pump, a diaphragm pump or the like
- a normally closed on-off valve 55 is provided between the pressure increasing / decreasing pump 54 and the steam tank 40.
- the on-off valve 55 is opened when an open signal is input from the ECU 61, and is closed when no open signal is input from the ECU 61.
- the cooling water introduction part 51 a is provided with a water temperature sensor 62, which detects the temperature of the cooling water W introduced into the cooling water tank 51 and outputs detection information to the ECU 61. It has become.
- the water temperature sensor 62 may be provided in the upstream side pipe 18a.
- the exhaust pipe 4 or the exhaust pipe section 19 is provided with an exhaust temperature sensor 63 that detects the temperature of the exhaust gas.
- the exhaust temperature sensor 63 controls the temperature of the exhaust gas introduced into the exhaust pipe section 19. It detects and outputs detection information to ECU61.
- the ECU 61 includes an electronic control circuit including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output interface, and the like. On-off control of the on-off valves 53 and 55 is performed based on the detection information.
- the pressure increasing / decreasing pump 54, the on-off valve 55, and the ECU 61 constitute a control means.
- the steam tanks 37 and 40 formed of a sealed space are depressurized to a constant atmospheric pressure by the pressure increasing / decreasing pump 54, and the water Wo stored in the steam tank 37 becomes saturated steam at a predetermined temperature (boiling point). That is, the temperature of the saturated steam generated in the steam tank 37 can be adjusted by adjusting the pressure in the steam tanks 37 and 40 by the pressurizing / depressurizing pump 54.
- the catalysts 5 and 6 and the cooling water of the engine 1 are all at a low temperature (about the outside temperature).
- a low-temperature exhaust gas is discharged from the engine 1 to the exhaust pipe 4 through the exhaust manifold 2 as the engine 1 is started, and the two catalysts 5 and 6 are exhausted. The temperature is raised by the gas.
- the cooling water is returned to the engine 1 through the bypass pipe 12 without passing through the radiator 7, so that the warm-up operation is performed.
- the water Wo in the steam tank 37 becomes saturated steam by the exhaust gas introduced from the exhaust pipe 4 to the exhaust pipe section 19 and then passes from the steam tank 37 through the communication holes 20a, 39a, 40a. 40.
- the thermostat 11 blocks communication between the bypass pipe 12 and the reflux pipe 9, so that the cooling water led out from the engine 1 through the lead-out pipe 8 is recirculated through the radiator 7. It is led to the tube 9. For this reason, low-temperature cooling water is supplied to the engine 1, and the cooling performance of the engine 1 can be enhanced.
- thermoelectric generator 17 When the exhaust gas of the engine 1 is introduced from the exhaust pipe 4 to the exhaust pipe portion 19, the heat of the exhaust gas is transmitted to the steam tank 37 through the thermoelectric conversion module 27, and the water Wo in the steam tank 37 evaporates to communicate with the communication hole. It is introduced into the steam tank 40 through 20a, 39a, 40a.
- thermoelectric conversion module 27 the heat of the high-temperature exhaust gas is transmitted to the heat receiving substrate 31 of the thermoelectric conversion module 27, and the heat of the saturated steam that is higher than the cooling water and lower than the exhaust gas, that is, the medium-temperature saturated steam, is transmitted to the heat dissipation substrate 32. Then, the thermoelectric conversion module 27 generates power by the temperature difference between the exhaust gas and the saturated steam.
- thermoelectric conversion module 27 the electric power generated by the thermoelectric conversion module 27 is supplied to the battery via a cable (not shown) and charged to the battery.
- this battery is comprised from the auxiliary machine battery which supplies electric power to the auxiliary machine of a vehicle, for example.
- thermoelectric conversion module 41 saturated with the cooling water. Electricity is generated by the temperature difference from the steam. Then, the electric power generated by the thermoelectric conversion module 41 is supplied to the battery via a cable (not shown) and charged to the battery.
- the saturated steam filling the steam tanks 37 and 40 is saturated steam evaporated at a predetermined temperature by the steam tanks 37 and 40 in a depressurized state, and contains moisture. Then, the saturated steam cooled by the cooling water W in the steam tank 40 becomes condensed water, moves to the left in FIG. 3 along the tapered portion 40 d of the steam tank 40, and returns to the steam tank 37 through the reflux pipe 52. Is done.
- the steam tank 37 is always in a state where water Wo is stored, and the saturated steam generated in the steam tank 37 is introduced from the steam tank 37 to the steam tank 40, and is condensed by being generated in the steam tank 40 and condensed.
- the operation of returning water to the steam tank 37 is repeated. That is, in the thermoelectric generator 17 of the present embodiment, a steam loop is formed by the steam tanks 37 and 40.
- the temperature of the exhaust gas is, for example, 500 ° C. or higher. Therefore, the thermoelectric conversion module 27 has a high operating temperature range due to the temperature difference between the high temperature exhaust gas and the medium temperature saturated steam. Is done. Further, power is generated by the thermoelectric conversion module 41 having a low operating temperature due to a temperature difference between the medium-temperature saturated steam and the low-temperature cooling water.
- thermoelectric power generation device 17 of the present embodiment two-stage power generation is performed by the thermoelectric conversion module 27 having a high operating temperature range and the thermoelectric conversion module 41 having a low operating temperature.
- the temperature of the exhaust gas is, for example, 300 ° C. or less, so the thermoelectric conversion module 27 does not become an efficient temperature range for power generation.
- the thermoelectric conversion module 41 that generates power due to the temperature difference between the saturated saturated steam and the cooling water is in a temperature range that is efficient for power generation, the thermoelectric conversion module 41 generates power.
- thermoelectric generator 17 the steam tank 37 is attached to the main body case 20 so as to surround the main body case 20, and the thermoelectric conversion module 27 is disposed between the exhaust pipe portion 19 and the main body case 20. It is configured to be attached to the main body case 20 so as to face in the width direction.
- thermoelectric conversion module 27 When pressure is evenly applied to the main body case 20, the contact pressure between the main body case 20 and the heat dissipation substrate 32 of the thermoelectric conversion module 27 increases, and the heat transfer efficiency of saturated steam to the heat dissipation substrate 32 of the thermoelectric conversion module 27 is improved. be able to.
- the saturated vapor pressure is uniformly applied to the low temperature portion of the heat dissipation substrate 32 of the thermoelectric conversion module 27, so that the contact pressure between the heat receiving substrate 31 and the exhaust pipe portion 19 of the thermoelectric conversion module 27 can be increased.
- the heat transfer efficiency of the thermoelectric conversion module 27 to the heat receiving substrate 31 can be improved.
- the power generation efficiency of the thermoelectric conversion module 27 can be improved.
- the steam tank 40 is provided on the placement unit 40b on which the thermoelectric conversion module 41 is placed, and the placement unit 40b, and the steam introduced into the steam tank 40 is placed on the placement unit 40b. And a movable portion 40c that is displaced according to pressure.
- thermoelectric conversion module 41 the heat transfer efficiency of saturated steam to the heat receiving substrate 42 of the thermoelectric conversion module 41 can be improved.
- the contact pressure between the heat radiation substrate 43 of the thermoelectric conversion module 41 and the cooling water tank 51 can be increased by applying the saturated steam pressure in the steam tank 40 to the heat receiving substrate 42 of the thermoelectric conversion module 41 evenly.
- the heat transfer efficiency to the heat dissipation substrate 43 of the thermoelectric conversion module 41 can be improved.
- the power generation efficiency of the thermoelectric conversion module 41 can be improved.
- the temperature of the cooling water W rises due to the influence of the medium-temperature saturated steam introduced into the cooling water tank 51, and the cooling water may boil.
- the ECU 61 monitors the temperature of the cooling water based on the detection information from the water temperature sensor 62, and determines whether or not the temperature of the cooling water has exceeded a predetermined temperature at which it is likely to boil. Then, on condition that the temperature has become equal to or higher than the predetermined temperature, a close signal is transmitted to the on-off valve 53 to close the on-off valve 53.
- the communication between the steam tank 37 and the steam tank 40 is cut off, the condensed water in the steam tank 37 is not returned to the steam tank 40, and the condensed water is stored in the steam tank 40. That is, low-temperature condensed water cooled by the cooling water W of the cooling water tank 51 is stored in the steam tank 40.
- the cooling water W in the cooling water tank 51 is not boiled by the saturated steam, and the cooling performance of the engine 1 can be prevented from deteriorating.
- the ECU 61 acquires the temperature of the exhaust gas introduced into the exhaust pipe section 19 based on the detection information from the exhaust temperature sensor 63, sends an open signal to the on-off valve 55, opens the on-off valve 55, and exhausts the exhaust gas.
- the pressure in the steam tanks 37 and 40 may be adjusted by pressurizing or depressurizing the pressure increasing / decreasing pump 54 based on the temperature of the gas.
- thermoelectric conversion module 27 having a high operating temperature region has a temperature region with high power generation efficiency, if the exhaust gas temperature is known, what is the temperature of the saturated steam in the steam tanks 37 and 40? It can be estimated whether the power generation efficiency of the thermoelectric conversion module 27 is maximized.
- Saturated steam generated by boiling water Wo at a predetermined temperature at a predetermined pressure has a correlation between temperature and pressure such that the temperature increases when the pressure increases and decreases when the pressure decreases.
- the pressure in the steam tanks 37 and 40 is controlled based on the temperature of the exhaust gas introduced into the exhaust pipe section 19 in the operation region where the temperature of the exhaust gas is high, and the temperature of the saturated steam with respect to the temperature of the exhaust gas.
- the ECU 61 acquires the temperature of the cooling water introduced into the cooling water tank 51 based on the detection information from the water temperature sensor 62, sends an open signal to the on-off valve 55, opens the on-off valve 55, and exhaust gas
- the pressure in the steam tanks 37 and 40 may be adjusted by pressurizing or depressurizing the pressurizing / depressurizing pump 54 based on the temperature.
- thermoelectric conversion module 41 having a low operating temperature range has a temperature range with high power generation efficiency, if the temperature of the cooling water is known, what is the temperature of the saturated steam in the steam tanks 37 and 40? It can be estimated whether the power generation efficiency of the thermoelectric conversion module 41 is maximized.
- the temperature of the saturated steam is controlled with respect to the temperature of the cooling water by controlling the pressure in the steam tanks 37 and 40 based on the temperature of the cooling water introduced into the cooling water tank 51.
- the power generation efficiency of the thermoelectric conversion module 41 can be improved.
- the ECU 61 acquires the exhaust gas temperature information based on the detection information from the exhaust temperature sensor 63, but means for acquiring the exhaust gas temperature is not limited to this. For example, based on engine load information such as the intake air amount acquired from an existing air flow meter in the vehicle and detection information from an accelerator opening sensor that detects the opening of an accelerator pedal, the ECU 61 determines whether the engine load and the accelerator opening The temperature of the exhaust gas may be estimated with reference to a map in which the temperature of the exhaust gas is associated with each other.
- the thermoelectric generator 17 of the present embodiment includes the main body case 20 that houses the thermoelectric conversion module 27, the exhaust pipe portion 19 that is provided in the main body case 20 and faces the heat receiving substrate 31 of the thermoelectric conversion module 27, A steam tank 37 attached to the outside of the main body case 20 and facing the heat radiating substrate 32 of the thermoelectric conversion module 27, a steam tank 40 provided on the upper portion of the main body case 20, and a heat radiating substrate 43 faces the steam tank 40.
- the thermoelectric conversion module 41 provided in the upper part of the steam tank 40 and the cooling water tank 51 provided in the upper part of the thermoelectric conversion module 41 so as to oppose the heat receiving substrate 42 of the thermoelectric conversion module 41 are comprised. Is done.
- thermoelectric generator 17 exhaust gas is introduced into the heat receiving substrate 31 of the thermoelectric conversion module 27 having a high operating temperature range, and saturated steam is introduced into the heat radiating substrate 32 of the thermoelectric conversion module 27. It is possible to prevent the temperature difference between the thermoelectric conversion module 27 and the thermal distortion of the thermoelectric conversion module 27.
- thermoelectric conversion module 27 can be enlarged, and when the thermoelectric conversion module 27 is attached to the main body case 20 of the thermoelectric power generator 17, wiring and the like can be reduced.
- thermoelectric conversion module 41 since saturated steam is introduced into the heat receiving substrate 42 of the thermoelectric conversion module 41 whose operating temperature region is lower than that of the thermoelectric conversion module 27 and cooling water is introduced into the heat dissipation substrate 43 of the thermoelectric conversion module 41, The thermal difference of the thermoelectric conversion module 41 can be suppressed by preventing the temperature difference between the heat receiving substrate 42 and the heat radiating substrate 43 from becoming excessively large.
- thermoelectric conversion module 41 can be enlarged and wiring etc. can be reduced when the thermoelectric conversion module 41 is interposed between the steam tank 40 and the cooling water tank 51 of the thermoelectric generator 17. .
- the manufacturing operation of the thermoelectric generator 17 can be facilitated, and the manufacturing cost of the thermoelectric generator 17 can be reduced.
- thermoelectric conversion module 27 and 41 power is generated by the thermoelectric conversion modules 27 and 41, and in the region where the exhaust gas temperature is low, power generation is performed by the thermoelectric conversion module 41. Power generation can be performed in a wide operating area.
- thermoelectric conversion module 27 and 41 since the steam of the same temperature is introduced in the heat dissipation substrate 32 of the thermoelectric conversion module 27 and the heat reception substrate 42 of the thermoelectric conversion module 41, the temperature of the heat dissipation substrate 32 of the thermoelectric conversion module 27 and the heat reception substrate 42 of the thermoelectric conversion module 41.
- the power generation efficiency of the thermoelectric conversion modules 27 and 41 can be improved.
- water is used as the refrigerant.
- the refrigerant is not limited to water, and may be a refrigerant that generates steam at the temperature of exhaust gas, such as alcohol. That's fine.
- thermoelectric power generation device can reduce the thermal strain of the thermoelectric conversion module and increase the size of the thermoelectric conversion module, thereby facilitating the manufacturing work and reducing the manufacturing cost. It is useful as a thermoelectric generator that performs thermoelectric generation using exhaust gas discharged from an internal combustion engine.
Abstract
Description
この熱電発電装置は、排気ガス導入部に導入される排気ガスの温度に基づいて蒸気流通部内の圧力を制御するので、第1の熱電変換モジュールの発電効率を向上させることができる。
この熱電発電装置は、冷却水流通部に導入される冷却水の温度に基づいて蒸気流通部内の圧力を制御し、冷却水の温度に対して飽和蒸気の温度を制御することにより、第2の熱電変換モジュールの発電効率を向上させることができる。
まず、構成を説明する。
図1に示すように、自動車等の車両に搭載される内燃機関としてのエンジン1は、吸気系から供給される空気と燃料供給系から供給される燃料とを適宜の空燃比で混合して成る混合気を燃焼室に供給して燃焼させた後、この燃焼に伴って発生する排気ガスを排気系から大気に放出するようになっている。
ラジエータ7は、ウォータポンプ10によって循環される冷却水を外気との熱交換により冷却するものである。
バイパス管12にはヒータ配管13が連結されており、このヒータ配管13の途中には、ヒータコア14が設けられている。このヒータコア14は、冷却水の熱を利用して車室内の暖房を行うための熱源である。
このとき、排気管部19を流れる排気ガスと蒸気タンク37を上昇する飽和蒸気との温度差によって熱電変換モジュール27が発電される。
なお、蒸気タンク37、40の上流端および下流端は、閉塞されており(図4では蒸気タンク37、40の上流端を示す)、蒸気タンク37、40の内部は、閉空間となっている。
このとき、蒸気タンク40に導入される飽和蒸気が冷却水タンク51を流れる冷却水Wによって冷却されて凝縮水となり、この凝縮水が蒸気タンク40に貯留される。
密閉空間からなる蒸気タンク37、40は、加減圧ポンプ54によって一定の気圧下に減圧されており、蒸気タンク37に貯留される水Woは、所定の温度(沸点)で飽和蒸気となる。すなわち、加減圧ポンプ54によって蒸気タンク37、40内の圧力を調整することにより、蒸気タンク37内で発生する飽和蒸気の温度を調整することができる。
この状態からエンジン1が始動されると、エンジン1の始動に伴いエンジン1からエキゾーストマニホールド2を経て排気管4に、低温の排気ガスが排出されることになり、2つの触媒5、6が排気ガスにより昇温されることになる。
エンジン1の冷間始動時には、排気管4から排気管部19に導入された排気ガスによって蒸気タンク37内の水Woが飽和蒸気となって蒸気タンク37から連通孔20a、39a、40aを通して蒸気タンク40内に導入される。
排気管4から排気管部19にエンジン1の排気ガスが導入されると、排気ガスの熱が熱電変換モジュール27を通して蒸気タンク37に伝達され、蒸気タンク37内の水Woが蒸発して連通孔20a、39a、40aを通して蒸気タンク40に導入される。
例えば、車両に既存のエアフローメータから取得した吸入空気量等のエンジン負荷情報やアクセルペダルの開度を検知するアクセル開度センサ等からの検知情報に基づいて、ECU61が、エンジン負荷とアクセル開度とに排気ガスの温度が関連付けられたマップを参照して排気ガスの温度を推定するようにしてもよい。
この結果、熱電発電装置17の製造作業を容易にすることができるとともに、熱電発電装置17の製造コストを低減させることができる。
なお、本実施の形態では、冷媒として水が用いられているが、冷媒としては、水に限定されることはなく、例えば、アルコール等のように排気ガスの温度で蒸気が発生する冷媒であればよい。
17 熱電発電装置
19 排気管部(排気ガス導入部)
20 本体ケース
27 熱電変換モジュール(第1の熱電変換モジュール)
31、42 受熱基板(受熱部)
32、43 放熱基板(放熱部)
37 蒸気タンク(蒸気流通部、第1の蒸気流通部)
40 蒸気タンク(蒸気流通部、第2の蒸気流通部)
40b 載置部
40c 可動部
41 熱電変換モジュール(第2の熱電変換モジュール)
51 冷却水タンク(冷却水流通部)
54 加減圧ポンプ(制御手段)
55 開閉弁(制御手段)
61 ECU(制御手段)
Claims (6)
- 高温部と低温部の温度差に応じて熱電発電を行う熱電変換モジュールを備えた熱電発電装置であって、
内燃機関から排出される排気ガスを前記高温部に導入する排気ガス導入部と、排気ガスの熱によって加熱された冷媒の蒸気を前記低温部に導入する蒸気流通部とを備えたことを特徴とする熱電発電装置。 - 前記熱電変換モジュールが、作動温度領域が高い第1の熱電変換モジュールと、前記第1の熱電変換モジュールよりも作動温度領域が低い第2の熱電変換モジュールとから構成されるとともに、前記蒸気流通部が、第1の蒸気流通部と前記第1の蒸気流通部に連通する第2の蒸気流通部とから構成され、
前記第1の熱電変換モジュールを収容する本体ケースと、
前記本体ケースに設けられ、前記第1の熱電変換モジュールの高温部に対向する前記排気ガス導入部と、
前記本体ケースの外方に取付けられ、前記第1の熱電変換モジュールの低温部に対向する前記第1の蒸気流通部と、
前記本体ケースの上部に設けられた前記第2の蒸気流通部と、
前記第2の蒸気流通部に低温部が対向するようにして前記第2の蒸気流通部の上部に設けられた前記第2の熱電変換モジュールと、
前記第2の熱電変換モジュールの高温部に対向するように前記第2の熱電変換モジュールの上部に設けられた冷却水流通部とを含んで構成されることを特徴とする請求項1に記載の熱電発電装置。 - 前記第1の蒸気流通部が、前記本体ケースを取り囲むようにして前記本体ケースに取付けられ、
前記第1の熱電変換モジュールが、前記排気ガス導入部を挟んで対向するように前記本体ケースの幅方向両側に取付けられることを特徴とする請求項2に記載の熱電発電装置。 - 前記排気ガス導入部に導入される排気ガスの温度に基づいて前記蒸気流通部内の圧力を制御する制御手段を有することを特徴とする請求項2または請求項3に記載の熱電発電装置。
- 前記冷却水流通部に導入される冷却水の温度に基づいて前記蒸気流通部内の圧力を制御する制御手段を有することを特徴とする請求項2または請求項3に記載の熱電発電装置。
- 前記第2の蒸気導入部が、前記第2の熱電変換モジュールが載置される載置部と、前記載置部に設けられ、前記第2の蒸気導入部に導入される蒸気の圧力に応じて変位する可動部とを有することを特徴とする請求項2ないし請求項5のいずれか1の請求項に記載の熱電発電装置。
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US14/373,830 US9716216B2 (en) | 2012-01-31 | 2012-01-31 | Thermoelectric power generating device |
PCT/JP2012/000586 WO2013114428A1 (ja) | 2012-01-31 | 2012-01-31 | 熱電発電装置 |
CN201280068351.5A CN104081031B (zh) | 2012-01-31 | 2012-01-31 | 热电发电装置 |
EP12867191.4A EP2811142B1 (en) | 2012-01-31 | 2012-01-31 | Thermoelectric generator |
JP2013556006A JP5804089B2 (ja) | 2012-01-31 | 2012-01-31 | 熱電発電装置 |
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WO2016098679A1 (ja) * | 2014-12-16 | 2016-06-23 | ヤンマー株式会社 | 熱電発電ユニット、それを用いた熱電発電装置およびその取付構造、その取付構造を有する排気ダクトならびにエンジン |
JP2016116363A (ja) * | 2014-12-16 | 2016-06-23 | ヤンマー株式会社 | 熱電発電ユニット、それを用いた熱電発電装置およびその取付構造、その取付構造を有する排気ダクトならびにエンジン |
US10557395B2 (en) | 2014-12-16 | 2020-02-11 | Yanmar Co., Ltd | Thermoelectric generating unit, thermoelectric generator using the thermoelectric generating unit, mounting structure of the thermoelectric generator, and exhaust duct and engine including the mounting structure |
WO2018079171A1 (ja) * | 2016-10-25 | 2018-05-03 | ヤンマー株式会社 | 熱電発電システム |
WO2018079170A1 (ja) * | 2016-10-25 | 2018-05-03 | ヤンマー株式会社 | 熱電発電装置 |
JP2018074657A (ja) * | 2016-10-25 | 2018-05-10 | ヤンマー株式会社 | 熱電発電装置 |
CN109863681A (zh) * | 2016-10-25 | 2019-06-07 | 洋马株式会社 | 热电发电装置 |
CN109863681B (zh) * | 2016-10-25 | 2020-08-11 | 洋马动力科技有限公司 | 热电发电装置 |
US10950776B2 (en) | 2016-10-25 | 2021-03-16 | Yanmar Power Technology Co., Ltd. | Thermoelectric power generation device |
US11031535B2 (en) | 2016-10-25 | 2021-06-08 | Yanmar Power Technology Co., Ltd. | Thermoelectric power generation system |
Also Published As
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JPWO2013114428A1 (ja) | 2015-05-11 |
US9716216B2 (en) | 2017-07-25 |
EP2811142A1 (en) | 2014-12-10 |
EP2811142A4 (en) | 2014-12-10 |
JP5804089B2 (ja) | 2015-11-04 |
EP2811142B1 (en) | 2015-07-29 |
CN104081031A (zh) | 2014-10-01 |
US20150068575A1 (en) | 2015-03-12 |
CN104081031B (zh) | 2016-01-06 |
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