JP5656180B1 - Rotary drive device using temperature-sensitive magnetic material - Google Patents

Abstract

In a rotary power device using temperature-sensitive magnetic material characteristics, a space region (37) or a low thermal conductivity material (38) is sandwiched between peripheral walls of a circular rotating member using a high thermal conductivity material as a whole or a circumferential edge. A plurality of temperature-sensitive magnetic materials (33) separated at equal intervals are provided around, and a heat exchange medium for heating or cooling or heating and cooling is provided inside a peripheral wall on which the temperature-sensitive magnetic material is disposed. A rotor (30) provided with a circulation chamber (35) and a heat exchange medium circulation hole (34), and a permanent magnet for driving (60) are arranged in the vicinity of the temperature-sensitive magnetic material in the partitioned heating region. By arranging the heating device (40) for applying heat from the external heat source and the cooling device (50) arranged in the vicinity of the opposite side of the heating device with respect to the driving permanent magnet at an appropriate position, Sense of having a Curie point between the lower and upper limits of reversible demagnetization The magnetic material can be realized be repeated efficiently heating and cooling within a temperature range of.

Description

  The present invention relates to a rotary power device using temperature-sensitive magnetic material characteristics, and more specifically, has a Curie point between a lower limit and an upper limit of reversible temperature change (reversible demagnetization), and the magnetic characteristics are near the Curie point. The present invention relates to a device for obtaining rotational power by using a temperature-sensitive magnetic material having a sudden change characteristic and simultaneously performing heating and cooling within the range of such reversible demagnetization.

  Public awareness of environmental issues has increased in recent years, especially after the Tohoku-Pacific Ocean Earthquake that occurred on March 11, 2011, and there has been a problem of radioactive contamination from nuclear power plants. It has come to show high interest in power generation methods and technologies based on natural energy.

  Similar to these studies, research on power generation devices using magnetic materials has been underway for a long time. Particularly in recent years, permanent magnets having a large residual magnetic flux density and a coercive force have appeared, such as neodymium magnets of rare earth magnets, and various technologies relating to power units, generators, and the like using the permanent magnets have been proposed. However, no matter how strong a permanent magnet is used, the permanent magnet alone cannot continue to drive. According to the law of energy conservation, in order to continue to drive a rotating body having a mass, it is necessary to continue taking out some energy as kinetic energy. Conventionally, there have been Stirling engines that can be driven if there is a heat source, and thermomagnetic engines that obtain driving force by applying heat to the vicinity of Curie that loses magnetism to a disk or cylindrical magnetic material. These have the advantage that the type of heat source is not limited as long as necessary heat energy is obtained. However, the Stirling engine requires a high-temperature combustion gas necessary for thermally expanding gas, and has a drawback that it cannot be driven by a heat source in a temperature range close to room temperature. Further, the thermomagnetic engine has a drawback that it is not suitable for high-speed rotation because of the heat exchange cycle.

However, due to recent technological development, there is a temperature-sensitive magnetism that has a Curie point between the upper and lower limits of reversible temperature change (reversible demagnetization) that is the range of operating temperature and whose magnetic characteristics change suddenly near the Curie point Material has been provided.
Therefore, the invention of the present application utilizes the change in magnetic properties accompanying the temperature change of the temperature-sensitive magnetic material for which technological advancement is rapidly progressing as described above. Recently, a material with a Curie point lowered to around 80 degrees has been developed, so if such a temperature-sensitive magnetic material is used, it can be driven only with hot and cold water and discharged from a production factory or the like. The range that can be used as a heat source, such as steam, cooling water for an internal combustion engine, or a hot water heater or small boiler installed in a general household, can be easily secured.

  In addition to the present application, various techniques for generating power and the like by applying heat have been proposed by paying attention to the characteristics of the temperature-sensitive magnetic material. For example, “a rotatable rotating drum formed in a cylindrical shape from a temperature-sensitive magnetic material, and disposed on the inner and outer sides of the rotating drum, and with magnetic poles facing the inner and outer peripheral surfaces of the rotating drum. The counter magnet, a heating area formed by heating a part of the rotating drum, and a cooling area formed by cooling the other part of the rotating drum are generated due to a temperature difference between the heating area and the cooling area. "An opposed magnet type thermomagnetic engine characterized by rotating a rotating drum by Maxwell stress" is known (see Patent Document 1).

Further, “a cylindrical body made of a heat-sensitive magnetic material that is rotatably supported, a magnet that is positioned opposite to the outer peripheral surface of the cylindrical body with a magnetic pole positioned in the circumferential direction of the cylindrical body, and a part of the cylindrical body In the thermomagnetic engine formed from a heating region for heating the cooling region and a cooling region for cooling the other part of the cylindrical body, the cylindrical body made of the thermosensitive magnetic material is made of a plurality of thin thermosensitive magnetic materials. A thermomagnetic engine characterized by a configuration in which cylindrical bodies are stacked and fixed concentrically is known technology (see Patent Document 2).

The techniques according to Patent Document 1 and Patent Document 2 are common in that the temperature characteristics of the temperature-sensitive magnetic material are used, as in the present invention. However, any of these techniques is a drum made of a temperature-sensitive magnetic material in which a rotating body is integrated, and is driven by forming a high temperature portion and a low temperature portion before and after the rotation direction of the drum. In this case, even if a part of the drum having the integral structure is heated, the heating region is unnecessarily widened by heat transfer, and it is considered that the efficiency of the heat exchange cycle is not good.

JP 2002-281774 A Patent No. 4234235

In the case of solar power generation, energy cannot be obtained at night. In the case of thermal power generation, there is a problem of environmental destruction caused by combustion gas. Hydropower requires a height difference and a water source, and wind power is not efficient unless the wind is strong. Therefore, there is a demand for the provision of a power device technique that can provide a stable power supply without being affected by the weather and topography without being combusted by fossil fuels or the like. In order to solve such a problem, the inventor of the present application pays attention to a change in magnetic properties accompanying a temperature change of the magnetic material, and a temperature-sensitive magnetic material having a Curie point between the lower limit and the upper limit of reversible demagnetization. Under the idea that a rotating power device capable of solving the above problems can be achieved by efficiently repeating heating and cooling within such a temperature range, this application converts the magnetic force and heat energy into kinetic energy and rotationally drives it. Invented.

The present invention is an apparatus for obtaining a rotational power by giving a temperature difference to a temperature-sensitive magnetic material, and is composed of a main body, a rotor, a heating device, a cooling device, and a driving permanent magnet, A circular rotating member using a high thermal conductivity material on the entire circumference or on the periphery of the rotor, and having an output shaft provided rotatably at the center of the rotor via a bearing at the center of the rotor, The peripheral wall is provided with a plurality of temperature-sensitive magnetic materials spaced at equal intervals across a space region or a low thermal conductivity material, and the temperature-sensitive magnetic material has lower and upper limits of reversible temperature change (reversible demagnetization). A temperature-sensitive magnetic material having a Curie point between and a magnetic property that changes suddenly in the vicinity of the Curie point, and inside the peripheral wall on which the temperature-sensitive magnetic material is disposed, heating or cooling, or Heat exchange medium distribution chamber for heating and cooling and heat exchange A medium flow hole is provided, and the heating device is disposed in the vicinity of the driving permanent magnet so that the temperature-sensitive magnetic material in the partitioned heating region does not exceed the upper limit of the reversible temperature change. An apparatus for applying heat from an external heat source, wherein the cooling device is disposed near the opposite side of the heating device with respect to the driving permanent magnet, and the temperature-sensitive magnetic material heated by the heating device is The device is a device for cooling so as not to exceed the lower limit of the reversible temperature change, and the driving permanent magnet acts on the demagnetization accompanying the temperature change of the temperature-sensitive magnetic material provided around the rotor, and the magnetic pole characteristics A permanent magnet having a large residual energy density and a large coercive force having a maximum energy product required for rotationally driving the rotor is used, and the rotor, the heating device, the cooling device, and the driving permanent are used in the main body. A stone, and employs a configuration that utilizes the temperature-sensitive magnetic material properties, characterized in that it is constituted by properly positioned.

  Further, the present invention employs a configuration in which the heating means in the heating device condenses sunlight to be a heat source, projects the condensed light onto the thermosensitive magnetic material in a heating region, The cooling means in the cooling device may be a rotary power device having a configuration utilizing a temperature-sensitive magnetic material characteristic in which a configuration using air cooling or low-temperature water as a refrigerant is employed.

Further, the present invention employs a configuration in which the heating means in the heating device heats a high-temperature gas generated from an external heat source as a heat medium, and the cooling means in the cooling device uses air cooling or low-temperature water as a refrigerant. It is also possible to provide a rotary power device using the temperature-sensitive magnetic material characteristics described above.

Further, the present invention employs a configuration in which high temperature water generated from an external heat source is heated as a heating medium in the heating unit in the heating device, and air cooling or low temperature water is used as a cooling medium in the cooling device. In which the upper limit of the reversible temperature change (reversible demagnetization) of the thermosensitive magnetic material exceeds 100 degrees and the Curie point is 100 degrees or less. A rotational power device using the temperature-sensitive magnetic material characteristics described above can also be used.

  The drive permanent magnet can be adjusted upward or downward with respect to the main body in a positional relationship with the temperature-sensitive magnetic material attached to the rotor. It can also be set as the rotational power apparatus using the temperature-sensitive magnetic material characteristic.

  Further, the drive permanent magnet is disposed so as to face the same pole and sandwich the temperature-sensitive magnetic material, wherein the rotational power device uses the temperature-sensitive magnetic material characteristics described above. You can also.

The rotary power device according to the present invention can be driven by a heat source such as steam discharged from a production factory or the like, cooling water of an internal combustion engine, or a water heater or a small boiler installed in a general household. And it has the excellent effect that it can be used anywhere as long as it is in an environment where even cooling water can be secured.

  Further, according to the rotary power device according to the present invention, since the structure is simple and the number of parts is small, it is possible to produce easily and reduce the cost.

Further, according to the rotational power device according to the present invention, the plurality of partitioned temperature-sensitive magnetic materials are provided around the space region or the low thermal conductivity material so as to be spaced at equal intervals. Compared to a thermomagnetic engine using a cylindrical temperature-sensitive magnetic body, unnecessary heating and cooling are unnecessary, and the temperature difference between adjacent temperature-sensitive magnetic materials becomes clear and efficient. The excellent effect of realizing a good heat exchange cycle is also exhibited.

1 is a schematic explanatory perspective view showing a basic configuration of a rotary power device according to the present invention. It is explanatory drawing which shows embodiment using the sunlight which concerns on Claim 2. FIG. 5 is an explanatory plan view showing an embodiment of a rotary power device according to claim 3. It is heat exchange explanatory sectional drawing of the rotary power apparatus which concerns on Claim 3. FIG. 6 is an explanatory plan view showing an embodiment of a rotary power device according to claim 4. It is heat exchange explanatory sectional drawing of the rotary power apparatus which concerns on Claim 4. It is explanatory drawing which shows the position adjustment mechanism of the permanent magnet for a drive. It is a repulsive state explanatory drawing of the magnetic force which made the same pole of the drive permanent magnet oppose.

  The rotational power device according to the present invention uses a temperature-sensitive magnetic material having a Curie point between a lower limit and an upper limit of reversible temperature change (reversible demagnetization), and a magnetic characteristic that changes suddenly near the Curie point. In such a use temperature range, heating and cooling are efficiently repeated, and the magnetic force decreases due to demagnetization of the heated temperature-sensitive magnetic material by attracting different polarities or repelling the same polarity due to the polarity of the magnetic material. The greatest feature is to generate a driving force by acting on the recovery of magnetism by cooling the temperature-sensitive magnetic material demagnetized by. Hereinafter, description will be given based on the drawings.

  FIG. 1 is a schematic explanatory perspective view showing a basic configuration of a rotary power device 10 according to the present invention. FIG. 1A is an overall schematic explanation, and FIG. 1B is an arrangement state in the case where a plurality of temperature-sensitive magnetic materials 33 are separated at equal intervals across a space region 37 in the rotor 30. FIG. 1C shows an arrangement state in the case where the rotor 30 adopts a configuration in which a plurality of temperature-sensitive magnetic materials 33 are equally spaced with a low thermal conductivity material 38 interposed therebetween.

The rotational power device 10 according to the present invention includes a main body 20, a rotor 30, a heating device 40, a cooling device 50, and a driving permanent magnet 60.

The rotor 30 is a circular rotary member using a high thermal conductivity material on the whole or on the periphery of the circle, and an output shaft 31 is provided at the center of the rotor 30 to be rotatably provided on the main body 20 via a bearing 32. A plurality of temperature-sensitive magnetic materials 33 are provided on the peripheral wall of the rotor 30 at regular intervals with the space region 37 or the low thermal conductivity material 38 interposed therebetween. Inside the peripheral wall to be provided, a heat exchange medium flow chamber 35 and a heat exchange medium flow hole 34 for heating or cooling or heating and cooling are provided. As the high thermal conductivity material, aluminum (250 W / (mK)), copper (401 W / (mK)), etc. are generally easy to obtain and functionally and cost-effective. On the other hand, as the low thermal conductivity material 38, Common materials include glass wool insulation (0.04 W / (mK)) and glass fiber (0.04 W / (mK)). In recent years, it has a very low thermal conductivity (0.021 W) composed of ultra-fine fumed silica having a fine micropore structure that regulates the movement of air molecules and an infrared opaque material (high-purity zirconia). / Mk) Insulation is also readily available. However, the present invention is not limited to these materials, and can be appropriately selected from the purpose of use and cost.

The temperature-sensitive magnetic material 33 has a Curie point between the lower limit and the upper limit of the reversible temperature change (reversible demagnetization), and the temperature-sensitive magnetic material 33 has a characteristic in which the magnetic characteristics change suddenly near the Curie point. For example, Hitachi Metals MS materials used in IH cookers, NE-MAX Co., Ltd. MS-T, and the like. As for the polarity, either the N pole or the S pole may be caused to act on the driving permanent magnet 60.

The heating device 40 is arranged in the vicinity of the driving permanent magnet 60, and only the temperature-sensitive magnetic material 33 in the partitioned heating region is supplied from an external heat source so as not to exceed the upper limit of the reversible temperature change. It is a device that gives heat. In the rotary power device 10 according to the first aspect, the heat source is not particularly limited, and any heat source can be used. However, as an ideal heat source, it is desirable that the supply of the heat medium 41 always exceeds the Curie point and has a temperature between the lower limit and the upper limit of the reversible temperature change (reversible demagnetization). In claim 2, it is specified that sunlight is used as a heat source, and in claim 3, it is specified that combustion gas discharged from a factory, an internal combustion engine or the like, or steam from a boiler is used. In claim 4, it is specified that hot water is used.

The cooling device 50 is disposed in the vicinity of the driving permanent magnet 60 on the opposite side of the heating device 40 so that the temperature-sensitive magnetic material 33 heated by the heating device 40 does not exceed the lower limit of the reversible temperature change. A device for cooling. As a cooling means, natural air cooling, forced air cooling, and water cooling are conceivable, but the water cooling type is desirable from the viewpoint of high cooling effect.

The permanent magnet 60 for driving acts on demagnetization accompanying the temperature change of the temperature-sensitive magnetic material 33 provided around the rotor 30 and has a residual energy having a maximum energy product necessary for rotationally driving the rotor 30 due to magnetic pole characteristics. Use permanent magnets with large magnetic flux density and coercivity. Since the magnetic force of the driving permanent magnet 60 greatly affects the driving force, a strong one is preferable. If it is selected based on the strength of the attractive force and the repulsive force, it becomes a neodymium magnet. However, when the cooling means of the cooling device 50 adopts a water cooling type, the neodymium magnet is easily oxidized, and the influence of heat from the heating device 40 Therefore, samarium-cobalt magnets are preferable. However, the driving permanent magnet 60 according to the present invention is not limited to this, and may be a permanent magnet having a magnetic force that can be driven. Therefore, the description of selecting the type of permanent magnet is not intended to exclude other types of permanent magnets such as ferrite magnets. Further, it is desirable that the position of the driving permanent magnet 60 can be corrected in six directions of the main body 20 by using a position adjusting mechanism so that the main body 20 rotates smoothly. In addition, two such magnets are used so that the same poles face each other, and the bag main body 20 is sandwiched so as to widen the magnetic flux and increase the magnetic force.

The main body 20 is a frame 21 and a cover 22 for arranging the rotor 30, the heating device 40, the cooling device 50, and the driving permanent magnet 60 at appropriate positions. The required strength is calculated from the diameter of the rotor 30 and the attractive force or repulsive force of the temperature-sensitive magnetic material 33, and designed with a sufficient safety factor.

  FIG. 2 is an explanatory view showing an embodiment of the rotary power device 10 according to claim 2. When the heating means in the heating device 40 employs a configuration in which sunlight is collected to be used as a heat source, and the collected light is projected onto the temperature-sensitive magnetic material 33 in a heating region and heated. As shown in FIG. 5, the configuration of the heating device 40 may be a general condensing device combined with a concave lens. However, it is necessary to have the ability to heat at least the Curie point of the temperature-sensitive magnetic material 33 to be used. In addition, when employ | adopting such a heating means, as shown in FIG. 2, two or more compartmentalized temperature-sensitive magnetic materials 33 are heated. This is to reduce the influence of the magnetic force in the reverse rotation direction and to increase the stability and efficiency in the rotation direction.

FIG. 3 is an explanatory plan view showing an embodiment of the rotary power device 10 according to claim 3, and FIG. 4 shows a cross section of the AA part and the BB part shown in FIG. FIG. 5 is a cross-sectional view explaining heat exchange of a rotary power device according to a third aspect in relation to the cooling device 50.
When the heating means in the heating device 40 employs a configuration in which a high-temperature gas generated from an external heat source is heated as the heat medium 41, the flow direction of the refrigerant 51 is upward from the bottom and the flow direction of the refrigerant 51 is upward. From below. The heat exchange medium circulation hole 34 is made equal to the opening area of the heat exchange medium circulation chamber 35 so that unnecessary pressure is not applied to the rotor 30. The other structure is the same as that of the liquid.

FIG. 5 is an explanatory plan view showing an embodiment of the rotary power device 10 according to claim 4. FIG. 6 shows a cross section of the AA part and the BB part shown in FIG. FIG. 5 is a cross-sectional view explaining heat exchange of a rotary power device according to a fourth aspect in relation to the cooling device 50.
5 and 6 show a case in which high temperature water generated from an external heat source is used as the heat medium 41 as heating means in the heating device 40, and air cooling or low temperature water is used as the refrigerant 51 in the cooling means in the heating and cooling device 50. Example of the present invention is shown. Note that it is necessary to use the temperature-sensitive magnetic material 33 having the characteristics that the upper limit of the reversible temperature change (reversible demagnetization) of the temperature-sensitive magnetic material 33 exceeds 100 degrees and the Curie point is 100 degrees or less. For example, Hitachi Metals MS90.

When such a configuration is adopted, it is necessary to avoid the refrigerant 51 or the heat medium 41 flowing into the heat exchange medium flow chamber 35 of the rotor 30 from being mixed by overflow. Therefore, an opening step 36 is provided above the circumferential edge of the rotor 30 to prevent the refrigerant 51 or the heat medium 41 from overflowing to the adjacent heat exchange medium flow chamber 35 even if it overflows. .

FIG. 7 is an explanatory diagram showing the rotary power device 10 having a configuration in which a position adjusting mechanism 70 for the driving permanent magnet is provided. FIG. 7A shows a state in which the driving permanent magnet 60 is arranged at a horizontal position in the circumferential direction, and FIG. 7B shows a state in which the driving permanent magnet 60 is simply moved upward. (C) has shown the state at the time of providing so that the temperature-sensitive magnetic material 33 may be inserted | pinched by the two permanent magnets 60 for a drive upward.

The driving force of the rotary power device 10 according to the present invention can be obtained with a large force by making a temperature difference due to heating and cooling of the temperature-sensitive magnetic material 33 to be used to the driving permanent magnet 33. . However, if there is a temperature difference even below the Curie point, it is rotationally driven, and it is important to create a temperature difference in the region where the magnetic force of the driving permanent magnet 60 reaches. Furthermore, in order to achieve high speed and high output, the operating characteristics greatly change depending on the mounting position of the driving permanent magnet 60 and its size and shape. Therefore, it can be appropriately selected according to various conditions. desirable.

The driving permanent magnet 60 does not simply have to use a strong magnetic force. For example, in the case of the driving permanent magnet 60 having a magnetic field characteristic toward the center direction of the rotor 30, it is difficult to pick up the temperature difference between the temperature-sensitive magnetic materials 33 arranged in the circumferential direction, and stability such as fluctuations in the rotation direction and fluctuations in the rotation speed. Will be lacking. On the other hand, if the shape is long in the circumferential direction, this temperature difference can be easily picked up, so that a stable driving force can be obtained. Further, the magnetic field characteristics greatly change depending on the ratio of the thickness and the cross-sectional area toward the rotor 30. This is the result of experiments conducted using various types and types of permanent magnets using an experimental apparatus.

In addition, since it is difficult to heat the temperature-sensitive magnetic material 33 that is rotating to a temperature near the Curie point as intended, a brake phenomenon due to the remaining magnetism always occurs in the acceleration direction. become. Therefore, in order to reduce the influence of the magnetic force acting in the reverse rotation direction, which did not reach the Curie point and could not lose the magnetism due to the temperature rise due to heating, the permanent magnet for driving to increase the stability and efficiency of the rotation direction It is desirable to be able to adjust the mounting position of 60. According to the results of the experiment, it was possible to increase the number of rotations under the same conditions when moving in the vertical direction rather than separating the distance in the circumferential direction. Although the specific structure is not shown in the drawings, the structure of the position adjusting mechanism 71 may be a slide guide 70 and an adjusting mechanism fixed with screws.

FIG. 8 is an explanatory diagram of the repulsive state of the magnetic force in which the same poles of the driving permanent magnet 60 are opposed to each other. When the same polarity (especially N poles) of the driving permanent magnet 60 is faced, it is crushed as shown in FIG. 8A and a magnetic field is applied in the circumferential direction of the rotor 30, as shown in FIG. As shown, when the S pole and the N pole face each other, there is a large difference in the region where the temperature-sensitive magnetic material 33 having a large temperature difference can be captured, and when the N poles face each other under the experimental conditions described later. When the opposite poles were opposed to each other, a rotation difference of about 20 rpm occurred. That is, since the intermediate position between the same poles (N poles) of the drive permanent magnet 60 is balanced by repulsive force, smooth passage can be achieved in the region that receives the most magnetism.

The outer diameter of the rotor 30 of the apparatus used for the experiment was 200 mm, thickness 30 mm, and weight 998 g. The temperature-sensitive magnetic material 33 has a thickness of 1 mm, a length × width of 28 mm × 16 mm, and 26 sheets. The heat source uses warm air from a dryer and combustion gas from a gas torch. The driving permanent magnet 60 has a diameter of 10 mm × length of 30 mm, a thickness of 30 mm × 30 mm of 1 mm, a thickness of 30 mm × 30 mm of 10 mm, a diameter of 50 mm × thickness of 10 mm, a thickness of 40 mm × 20 mm of 3 mm, and other combinations. The neodymium magnet was used at the beginning of the experiment. However, since the heat resistance was poor and the magnetic force was greatly attenuated due to the influence of heat, it was replaced with a samarium cobalt magnet. Even when driven for a long time, there was no significant change in the response such as the number of revolutions or the rise. In addition, the mounting position of the driving permanent magnet 60 can be separated from the temperature-sensitive magnetic material 33 in the circumferential direction, or closer to the contact with the temperature-sensitive magnetic material 33. Experiments with various positional relationships such as facing each other resulted in different results depending on these arrangements. The best result was obtained by using two drive permanent magnets 60 using a donut-shaped neodymium magnet having an outer diameter of 30 mm, an inner diameter of 10 mm, and a thickness of 10 mm. It was the case of setting. The speed of rising and the stability of rotation were good, and 80 rpm was rotated for 30 minutes or more in a stable state, and the rotation state was checked every day for about one month under this set condition. As a result, there was no significant change after 30 days. If it is used so as not to exceed the Curie point, considerable durability is expected.

DESCRIPTION OF SYMBOLS 10 Rotating power unit 20 Main body 21 Frame 22 Cover 30 Rotor 31 Output shaft 32 Bearing 33 Temperature-sensitive magnetic material 34 Heat exchange medium flow hole 35 Heat exchange medium flow chamber 36 Opening step part 37 Space area 38 Low thermal conductivity material 40 Heating Device 41 Heat medium 50 Cooling device 51 Refrigerant 60 Driving permanent magnet 61 Magnetic field line R1 Circumferential magnetic region R2 Circumferential magnetic region 70 Position adjustment mechanism

Claims (6)

An apparatus for obtaining rotational power by giving a temperature difference to a temperature-sensitive magnetic material,
The body,
With the rotor,
A heating device;
A cooling device;
A permanent magnet for driving, and

The rotor is
A circular rotating member using a high thermal conductivity material on the whole or on the periphery of the circle,
In the center of the rotor, there is an output shaft for providing the main body rotatably via a bearing,
On the peripheral wall of the rotor, a plurality of temperature-sensitive magnetic materials spaced apart at equal intervals across a space region or a low thermal conductivity material are provided,
The temperature-sensitive magnetic material has a Curie point between a lower limit and an upper limit of reversible temperature change (reversible demagnetization), and uses a temperature-sensitive magnetic material having a characteristic that magnetic characteristics change suddenly near the Curie point,
Inside the peripheral wall where the temperature-sensitive magnetic material is disposed, heating or cooling, or a heat exchange medium circulation chamber and a heat exchange medium circulation hole for heating and cooling are provided,

The heating device is a device that is arranged in the vicinity of the driving permanent magnet and applies heat from an external heat source to the thermosensitive magnetic material in the partitioned heating region so as not to exceed the upper limit of the reversible temperature change. Yes,

The cooling device is disposed in the vicinity of the driving permanent magnet on the opposite side of the heating device, and cools the thermosensitive magnetic material heated by the heating device so as not to exceed the lower limit of the reversible temperature change. Device to

The driving permanent magnet acts on the demagnetization accompanying the temperature change of the temperature-sensitive magnetic material provided around the rotor, and the residual magnetic flux having the maximum energy product necessary for rotationally driving the rotor by the magnetic pole characteristics. Use permanent magnets with high density and coercivity,

A rotary power device using temperature-sensitive magnetic material characteristics, wherein the main body includes the rotor, the heating device, the cooling device, and the driving permanent magnet arranged at appropriate positions. . The heating means in the heating device employs a configuration in which sunlight is condensed to be a heat source, and the condensed light is projected and heated onto the temperature-sensitive magnetic material in a heating region,
The rotary power device using the temperature-sensitive magnetic material characteristics according to claim 1, wherein the cooling means in the cooling device employs a configuration using air cooling or low-temperature water as a refrigerant. The heating means in the heating device adopts a configuration in which a high-temperature gas generated from an external heat source is heated as a heat medium,
The rotary power device using the temperature-sensitive magnetic material characteristics according to claim 1, wherein the cooling means in the cooling device employs a configuration using air cooling or low-temperature water as a refrigerant. The heating means in the heating device employs a configuration in which high-temperature water generated from an external heat source is heated as a heat medium,
The cooling means in the cooling device adopts a configuration using air cooling or low-temperature water as a refrigerant,
The temperature-sensitive magnetic material having the characteristics that the upper limit of the reversible temperature change (reversible demagnetization) of the temperature-sensitive magnetic material exceeds 100 degrees and the Curie point is 100 degrees or less is used. A rotational power device using the temperature-sensitive magnetic material characteristic according to Item 1. The drive permanent magnet includes a position adjustment mechanism for adjusting the position upward or downward with respect to the main body in a positional relationship with the temperature-sensitive magnetic material attached to the rotor. The rotary power device according to any one of claims 1 to 4. The rotary power device according to any one of claims 1 to 5, wherein the driving permanent magnets are arranged so that the same poles face each other and the temperature-sensitive magnetic material is sandwiched therebetween.

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