JP2003065620A - Regenerator for stirling machine, and stirling refrigerator and flow gas heat regenerating system using the regenerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a heat storage of a regenerator for a stirling machine. SOLUTION: In the cylindrical type regenerator 1 for the stirling machine formed by winding a strip-shaped resin film 2, a resin layer 3 containing a component having a higher heat conductivity than the resin film 2 is formed on the surface of the film 2. By winding this resin film 2 to be of a cylindrical type, the regenerator 1 for the stirling machine being excellent in heat storing properties is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator for Stirling machines, a Stirling refrigerator using the regenerator, and a heat regeneration system for flowing gas.

[0002]

2. Description of the Related Art As a conventional Stirling machine regenerator 1, for example, as shown in FIG. 8, a resin film 2 provided with minute projections 2a on its surface has a cavity formed therein. Some are wound in a cylindrical shape.

FIG. 9 is a side sectional view of an example of a free piston type Stirling refrigerator in which the regenerator 1 is incorporated. First, the operation of this Stirling refrigerator will be described. As shown in FIG. 9, the free piston Stirling refrigerator includes a cylinder 8 in which a working gas such as helium is sealed, a displacer 7 and a piston 5 that divide the inside of the cylinder 8 into an expansion space 10 and a compression space 9. , A linear motor 6 for reciprocating the piston 5, a heat absorber 14 provided on the expansion space 10 side to remove heat from the outside, and a radiator 13 provided on the compression space 9 side to release heat to the outside. is doing.

In FIG. 9, 11 and 12 are leaf springs which respectively support the displacer 7 and the piston 5 and reciprocate the displacer 7 and the piston 5 by elastic force. Further, 15 is a heat exchanger for heat radiation,
16 is a heat exchanger for heat absorption. These serve to promote heat exchange with the outside of the refrigerator. The regenerator 1 is arranged between the heat radiation heat exchanger 15 and the heat absorption heat exchanger 16.

With the above structure, when the linear motor 6 is driven, the piston 5 moves upward in the cylinder 8 accordingly, and the working gas in the compression space 9 is compressed. Although the temperature of the working gas rises due to compression, the heat radiating heat exchanger 15
Since the heat is exchanged with the outside air through the radiator 13 to be cooled, the process becomes an isothermal compression change. The working gas compressed by the piston 5 in the compression space 9 flows into the regenerator 1 by pressure and is sent into the expansion space 10. At that time, the amount of heat of the working gas is the resin film 2 constituting the regenerator 1.
The heat is accumulated in the working gas and the working gas cools down.

The high-pressure working gas flowing into the expansion space 10 expands when the displacer 7, which reciprocates while maintaining a predetermined phase difference with the piston 5, descends downward. At this time, the temperature of the working gas falls, but the heat-absorbing heat exchanger 16
Since the heat of the outside air is absorbed and heated from the heat absorber 14 via this, this process becomes an isothermal expansion change. Eventually, the displacer 7 starts to rise, the working gas in the expansion space 10 passes through the regenerator 1, and returns to the compression space 9 side again. At that time, the amount of heat stored in the regenerator 1 is given to the working gas,
The temperature of the working gas rises. By repeating this series of Stirling cycles by the reciprocating motion of the drive unit, the heat absorber 14 absorbs heat from the outside air, and the temperature gradually decreases.

In this way, the working gas is reciprocated through the regenerator 1 between the compression space 9 and the expansion space 10 to absorb the heat.
In the Stirling refrigerating machine which takes out cold heat from No. 4, the amount of heat is stored from the high temperature working gas compressed by the regenerator 1, and the amount of heat is given to the expanded low temperature working gas to recover the cold heat. The larger the amount, the higher the heat transfer efficiency of the regenerator 1, and the more the cooling performance of the Stirling refrigerator is improved.

[0008]

However, in the above-described conventional regenerator 1 for Stirling machine, since the regenerator 1 itself is made of the resin film 2 having a low thermal conductivity, the working gas and the resin are not used. The heat exchange with the film 2 tends to be insufficient. Therefore, since the regenerator 1 cannot sufficiently store heat, the regeneration efficiency of thermal energy is low, and there is a problem that improvement of the performance of the Stirling machine cannot be expected. An object of the present invention is to improve the heat storage amount of a regenerator for Stirling machines.

[0009]

In order to achieve the above object, the present invention provides a Stirling machine regenerator in which a belt-shaped resin film is wound in a cylindrical shape, and the surface of the resin film is better than the resin film. It forms a layer with high thermal conductivity. When the working gas heated to a high temperature by compression flows into the regenerator from the high temperature end, the heat energy of the working gas is stored in the resin film. At this time, since the layer having a high thermal conductivity on the resin film has a sufficiently high thermal conductivity, thermal energy is first transmitted along the resin layer and then accumulated in the entire resin film. On the contrary, when the working gas that has become low temperature due to expansion flows into the regenerator from the low temperature end, the stored thermal energy is radiated. At this time, thermal energy is transmitted along the resin layer and is radiated from the entire resin film to the working gas.

It is also possible to form the layer on the one surface of the resin film. In this case, the amount of ink used is reduced and the coating process only needs to be performed once.
The cost is greatly reduced.

Further, by providing a plurality of minute protrusions on the surface of the resin film, a gap can be formed between the overlapping resin films. Therefore, the working gas flows through the gap from the high temperature end to the low temperature end in the axial direction of the cylinder, or vice versa.

In another example of the regenerator for a Stirling machine of the present invention, two belt-shaped resin films are laminated with a layer having a higher thermal conductivity than these resin films and wound. Is characterized by. This prevents the layer having high thermal conductivity from being exposed to the outside.

In the above case, when the layers are formed in the direction parallel to the cylinder axis at a predetermined interval, the area is smaller than that in the case of forming the layers as a whole.

Further, when the layer on the resin film is formed at a portion at a predetermined distance from both ends in the axial direction of the cylinder, the area of the layer becomes smaller than that in the case of forming the layer as a whole.

Alternatively, if the layers on the resin film are formed at predetermined distances from both ends in the axial direction of the cylinder, the central portion of the resin film without the layer has relatively low thermal conductivity. The heat accumulated in the resin film becomes difficult to escape.

The layer can be easily formed by printing on a resin film as an ink material of a resin containing a component having a high thermal conductivity. In this case, as the component having high thermal conductivity, at least one fine particle of gold, silver, copper, aluminum or carbon can be preferably used.

Further, in a regenerator for a Stirling machine according to still another example of the present invention, a resin film is formed in a portion having a predetermined distance from both ends of the regenerator in the cylinder axis direction to increase the thickness. As a result, wrinkles are less likely to occur when the resin film is wound.

A Stirling refrigerator, which is generally called a free piston type, has a cylinder filled with a working gas, a piston arranged so as to reciprocate in the cylinder, and the piston arranged at the tip side of the cylinder. A displacer that reciprocates in different phases, an expansion space formed between the displacer and the tip of the cylinder, a compression space formed between the displacer and the piston, the expansion space and the compression space. And a regenerator arranged in the flow path of the working gas that communicates with. As the regenerator of this free piston type Stirling refrigerator, the above-mentioned regenerator for Stirling machine can be preferably used.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a structure of a regenerator for a Stirling machine according to a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the regenerator.
As shown in FIG. 1, the regenerator 1 includes a belt-shaped resin film 2
Is wound into a cylindrical shape. The resin film 2
As a material of, in consideration of various conditions such as high specific heat, low thermal conductivity, high heat resistance, low hygroscopicity, for example, polyethylene terephthalate (PET), or
Polyimide can be preferably used.

A plurality of fine projections 2a are regularly provided on the entire one surface of the resin film 2. The method of forming the protrusion 2a may be, for example, a printing method,
There are methods such as embossing and heat forming. With this projection 2a, as shown in FIG. 2, a gap is formed between the overlapping resin films 2. Therefore, as shown by an arrow A in FIG. 1, the working gas flows through the gap from the high temperature end 1H to the low temperature end 1C in the cylinder axis direction (the direction of the alternate long and short dash line B) or in the opposite direction.

On both sides of the resin film 2, a resin layer 3 containing a component having higher thermal conductivity than the resin film 2 is formed as a thin film. As a component with high thermal conductivity,
Fine particles of gold, silver, copper, aluminum, carbon or the like can be used preferably alone or in combination. These fine particles are mixed with a resin material such as polyethylene and printed on both sides of the resin film 2 as an ink material to coat the resin layer 3.

Next, the operation of regenerating the thermal energy of the Stirling refrigerator using the regenerator 1 will be described. When the working gas heated to a high temperature by compression flows into the regenerator 1 through the high temperature end 1H, the heat energy of the working gas is stored in the resin film 2. At this time, since the resin layer 3 on the resin film 2 has a sufficiently high thermal conductivity, heat energy is first transmitted along the resin layer 3 and then accumulated in the entire resin film 2. As a result, a sufficient amount of heat can be stored. On the contrary, the working gas that has become low temperature due to expansion is at the low temperature end 1
When flowing into the regenerator 1 from C, the stored thermal energy is radiated. At this time, the thermal energy is transmitted along the resin layer 3 and is radiated from the entire resin film 2 to the working gas. As a result, a sufficient amount of heat radiation can be obtained. Therefore, the regeneration energy efficiency of the regenerator 1 is improved.

A second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a perspective view showing a structure of a regenerator for a Stirling machine according to a second embodiment of the present invention. As shown in FIG. 3, a plurality of fine projections 2 a are regularly provided on one side of the resin film 2. Due to the protrusion 2a, a gap is formed between the overlapping resin films 2. Therefore, as shown by the arrow A, the working gas flows through the gap from the high temperature end 1H in the cylinder axis direction (the direction of the alternate long and short dash line B) to the low temperature end 1C or vice versa.

As shown in FIG. 3, a resin layer 3 containing a component having higher thermal conductivity than the resin film 2 is provided on both sides of the resin film 2 at a predetermined interval in a direction parallel to the cylinder axis. It is formed in a striped pattern. As the component having high thermal conductivity, fine particles of gold, silver, copper, aluminum, carbon or the like can be used preferably alone or in combination. The resin film 2 is masked in a striped pattern at predetermined intervals in advance. Then, these fine particles are mixed with a resin material such as polyethylene, and printing is performed on both surfaces of the resin film 2 as an ink material to perform coating. Finally, the resin layer 3 is formed by rinsing and removing the masking. The interval between the stripes of the resin layer 3 may be random.

Next, the operation of regenerating the thermal energy of the Stirling refrigerator using the regenerator 1 will be described. When the working gas heated to a high temperature by compression flows into the regenerator 1 through the high temperature end 1H, the heat energy of the working gas is stored in the resin film 2. At this time, since the resin layer 3 on the resin film 2 has a sufficiently high thermal conductivity, heat energy is first transferred to each of the stripes of the resin layer 3, and then the heat is stored in the resin film 2 from each stripe. As a result, a sufficient amount of heat can be stored. On the contrary, when the working gas that has become low temperature due to expansion flows into the regenerator 1 from the low temperature end 1C, the stored thermal energy is radiated. At this time, thermal energy is transmitted from the resin film 2 to each of the stripes of the resin layer 3 and is radiated to the working gas. As a result, a sufficient amount of heat radiation can be obtained. Therefore, the regeneration energy efficiency of the regenerator 1 is improved.

In this embodiment, since the resin layers 3 on the resin film 2 are formed at intervals, the area of the resin layer 3 is smaller than that of the case where the resin layers 3 are formed over the entire surface. As a result, the amount of the component having high thermal conductivity used can be small, so that the cost can be reduced. In addition, since the portion without the resin layer 3 has relatively low thermal conductivity, the heat accumulated in the resin film 2 is hard to escape. Therefore, the heat storage amount of the regenerator 1 increases.

A third embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a perspective view showing the structure of a Stirling machine regenerator according to a third embodiment of the present invention. As shown in FIG. 4, a plurality of fine protrusions 2 a are regularly provided on the entire one surface of the resin film 2. Due to the protrusion 2a, a gap is formed between the overlapping resin films 2. Therefore, as shown by the arrow A, the working gas flows through the gap from the high temperature end 1H in the cylinder axis direction (the direction of the alternate long and short dash line B) to the low temperature end 1C or vice versa. In particular, the vicinity of the high temperature end 1H and the low temperature end 1C of the regenerator 1 has a high rate of contributing to the regeneration of thermal energy.

As shown in FIG. 4, on both sides of the resin film 2, a resin layer 3 containing a component having higher thermal conductivity than that of the resin film 2 is provided on a portion having a predetermined distance from both ends in the axial direction of the cylinder. Has been formed. As the component having high thermal conductivity, fine particles of gold, silver, copper, aluminum, carbon or the like can be used preferably alone or in combination. The resin film 2 is preliminarily masked in the central portion except for the portions having a predetermined width from both side edges. Then, by mixing these fine particles with a resin material such as polyethylene and printing on both surfaces of the resin film 2 as an ink material,
Perform coating. Finally, the resin layer 3 is formed by rinsing and removing the masking.

Next, the operation of regenerating the thermal energy of the Stirling refrigerator using the regenerator 1 will be described. When the working gas heated to a high temperature by compression flows into the regenerator 1 through the high temperature end 1H, the heat energy of the working gas is stored in the resin film 2. At this time, since the resin layer 3 on the resin film 2 has a sufficiently high thermal conductivity, heat energy is mainly transferred to the resin layers 3 at both ends, and then the heat is stored in the resin film 2 from here. As a result, a sufficient amount of heat can be stored. On the contrary, when the working gas that has become low temperature due to expansion flows into the regenerator 1 from the low temperature end 1C, the stored thermal energy is radiated. At this time, heat energy is transmitted from the resin film 2 to the resin layers 3 at both ends and is radiated to the working gas. As a result, a sufficient amount of heat radiation can be obtained. Therefore, the regeneration energy efficiency of the regenerator 1 is improved.

In this embodiment, since the resin layer 3 on the resin film 2 is formed at a predetermined distance from both ends in the axial direction of the cylinder, its area is smaller than that of the case where it is formed entirely. As a result, the amount of the component having high thermal conductivity used can be small, so that the cost can be reduced. Moreover, since this portion has a high rate of contributing to the regeneration of thermal energy, the performance of the regenerator 1 is hardly deteriorated.

A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 5: is a perspective view which shows the structure of the regenerator for Stirling machines which concerns on the 4th Embodiment of this invention. As shown in FIG. 5, a plurality of fine protrusions 2 a are regularly provided on the entire one surface of the resin film 2. Due to the protrusion 2a, a gap is formed between the overlapping resin films 2. Therefore, as shown by the arrow A, the working gas flows through the gap from the high temperature end 1H in the cylinder axis direction (the direction of the alternate long and short dash line B) to the low temperature end 1C or vice versa. In particular, the vicinity of the high temperature end 1H and the low temperature end 1C of the regenerator 1 has a high rate of contributing to the regeneration of thermal energy.

As shown in FIG. 5, on both sides of the resin film 2, a resin layer 3 containing a component having a higher thermal conductivity than that of the resin film 2 is formed in a portion having a predetermined width from both ends in the axial direction of the cylinder. It is formed in a striped pattern at a predetermined interval in a direction parallel to the cylinder axis. As the component having high thermal conductivity, fine particles of gold, silver, copper, aluminum, carbon or the like can be used preferably alone or in combination. The resin film 2 is masked in advance. In addition,
Masking is performed in a striped pattern at predetermined intervals from the side edges to a predetermined width. Then, these particles are mixed with a resin material such as polyethylene and the resin film 2 is used as an ink material.
Coating is performed by printing on both sides of. Finally, the resin layer 3 is formed by rinsing and removing the masking. The interval between the stripes of the resin layer 3 may be random.

Next, the operation of regenerating the thermal energy of the Stirling refrigerator using the regenerator 1 will be described. When the working gas heated to a high temperature by compression flows into the regenerator 1 through the high temperature end 1H, the heat energy of the working gas is stored in the resin film 2. At this time, since the resin layer 3 on the resin film 2 has a sufficiently high thermal conductivity, heat energy is mainly transferred to each of the stripes of the resin layer 3 at both ends, and then the heat is accumulated in the resin film 2 from each stripe. To be done. As a result, a sufficient amount of heat can be stored. On the contrary, when the working gas that has become low temperature due to expansion flows into the regenerator 1 from the low temperature end 1C, the stored thermal energy is radiated. At this time, thermal energy is transmitted from the resin film 2 to each of the stripes of the resin layer 3 and is radiated to the working gas. As a result, a sufficient amount of heat radiation can be obtained. Therefore, the regeneration energy efficiency of the regenerator 1 is improved.

In this embodiment, since the resin layer 3 on the resin film 2 is formed at a predetermined distance from both ends in the axial direction of the cylinder, the area of the resin layer 3 is smaller than that of the case where the resin layer 3 is formed entirely. As a result, the amount of the component having high thermal conductivity used can be small, so that the cost can be reduced. Moreover, since this portion has a high rate of contributing to the regeneration of thermal energy, the performance of the regenerator 1 is hardly deteriorated. In addition, since the portion without the resin layer 3 has relatively low thermal conductivity, the heat accumulated in the resin film 2 is hard to escape. Therefore, the heat storage amount of the regenerator 1 increases.

In each of the above-described embodiments, the resin layer 3 is formed on both sides of the resin film 2, but it is also possible to form only one side. In this case, the amount of ink used is reduced and the coating process only needs to be performed once, so that the cost is significantly reduced.

A fifth embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a perspective view showing the structure of a Stirling machine regenerator according to a fifth embodiment of the present invention. As shown in FIG. 6, a plurality of fine protrusions 2 a are regularly provided on one side of the resin film 2. Due to the protrusion 2a, a gap is formed between the overlapping resin films 2. Therefore, as shown by the arrow A, the working gas flows through the gap from the high temperature end 1H in the cylinder axis direction (the direction of the alternate long and short dash line B) to the low temperature end 1C or vice versa. In particular, the vicinity of the high temperature end 1H and the low temperature end 1C of the regenerator 1 has a high rate of contributing to the regeneration of thermal energy.

As shown in FIG. 6, a resin film 4 made of polyethylene or the like is formed on both surfaces of the resin film 2 at portions having a predetermined distance from both ends in the axial direction of the cylinder. The resin film 2 is preliminarily masked in the central portion except for the portions having a predetermined width from both side edges. Then, both sides of the resin film 2 are printed by using a resin material as an ink material to perform coating. Finally, the resin film 4 is formed by rinsing and removing the masking.

According to this embodiment, since the resin film 4 is formed to increase the thickness of the portion having a predetermined width from both side edges of the resin film 2, when the resin film 2 is wound, wrinkles are formed. Less likely to occur. Therefore, the performance of the regenerator 1 is stable.

Although the resin film 4 is formed on both sides of the resin film 2 in this embodiment,
Of course it does not matter even if it is only one side. In this case, the amount of ink used is reduced and the coating process only needs to be performed once.
The cost is greatly reduced.

A sixth embodiment of the present invention will be described with reference to the drawings. FIG. 7 is an enlarged sectional view showing a regenerator for a Stirling machine according to a sixth embodiment of the present invention. As shown in FIG. 7, the regenerator 1 is formed by cylindrically winding a composite resin film 20 obtained by laminating a resin layer 3 described later on two belt-shaped resin films 21 and 22. A plurality of fine projections 2a are regularly provided on the entire one surface of one resin film 21. With this projection 2a, as shown in FIG. 7, a gap is formed between the overlapping composite resin films 20. Therefore, as shown by an arrow A in FIG. 1, the working gas flows through the gap from the high temperature end 1H to the low temperature end 1C in the axial direction of the cylinder, or vice versa.

On one side of the resin film 22, a resin layer 3 containing a component having higher thermal conductivity than the resin film 22 is formed as a thin film. As the component having high thermal conductivity, fine particles of gold, silver, copper, aluminum, carbon or the like can be used preferably alone or in combination. These fine particles are mixed with a resin material such as polyethylene and printed on one surface of the resin film 22 as an ink material to coat the resin layer 3. The two resin films 21, so that the surface of the resin film 22 on which the resin layer 3 is formed and the surface of the resin film 21 on which the protrusion 2a is not formed,
By laminating 22 together, the laminated composite resin film 20 of the resin layer 3 is produced.

According to this embodiment, since the resin layer 3 is not exposed to the outside, there is no risk of the resin layer 3 coming off due to temperature changes and pressure changes, and durability is greatly improved. In this case, the resin layer 3 to be laminated is formed at a predetermined interval in a direction parallel to the cylinder axis as shown in FIG. 3, or has a predetermined distance from both ends in the cylinder axis direction as shown in FIG. Alternatively, as shown in FIG. 5, it may be formed in a portion, or in a portion having a predetermined distance from both ends in the cylinder axis direction at a predetermined interval in a direction parallel to the cylinder axis.

Although the ink layer is used as the method for forming the resin layer 3 in this case, other methods such as coating, vapor deposition, plating, and thin film tape attachment may be used.

The regenerator 1 for the above Stirling machine
By arranging in a donut-shaped space and applying it to a cycle utilizing reciprocating flow of gas other than the Stirling refrigerator, a heat regeneration system for various flowing gases can be realized.

[0045]

As described above, according to the present invention, a cylindrical Stirling machine regenerator formed by winding a belt-shaped resin film has a higher thermal conductivity than the resin film on the surface of the resin film. Forming layers. When the working gas heated to a high temperature by compression flows into the regenerator from the high temperature end, the heat energy of the working gas is stored in the resin film. At this time, since the layer having a high thermal conductivity on the resin film has a sufficiently high thermal conductivity, thermal energy is first transmitted along the resin layer and then accumulated in the entire resin film. As a result, a sufficient amount of heat can be stored.
On the contrary, when the working gas that has become low temperature due to expansion flows into the regenerator from the low temperature end, the stored thermal energy is radiated. At this time, thermal energy is transmitted along the layer,
The entire resin film radiates heat to the working gas. As a result, a sufficient amount of heat radiation can be obtained. Therefore, the regeneration energy efficiency of the regenerator is improved.

It is also possible to form the layer on the one surface of the resin film. In this case, the amount of ink used is reduced and the coating process only needs to be performed once.
The cost is greatly reduced.

Further, by providing minute projections on the entire surface of the resin film, a gap can be formed between the overlapping resin films. Therefore, the working gas flows through the gap from the high temperature end to the low temperature end in the axial direction of the cylinder, or vice versa.

In the regenerator for a Stirling machine of another example of the present invention, two strip-shaped resin films laminated with a layer having a higher thermal conductivity than these resin films are wound. As a result, the layer is not exposed to the outside, and there is no fear of falling off due to temperature changes and pressure changes, and durability is greatly improved.

In the above case, when the layers are formed in the direction parallel to the cylinder axis with a predetermined interval, the area is smaller than in the case of forming the layers as a whole. As a result, the amount of the component having high thermal conductivity used can be small, so that the cost can be reduced. In addition, since the portion without the layer has relatively low thermal conductivity, the heat accumulated in the resin film is difficult to escape. Therefore, the heat storage amount of the regenerator increases.

Further, when the layer on the resin film is formed at a portion at a predetermined distance from both ends in the axial direction of the cylinder, the area becomes smaller than the case where it is formed on the whole. As a result, the amount of the component having high thermal conductivity used can be small, so that the cost can be reduced. Moreover, since this portion has a high contribution to the regeneration of thermal energy, the performance of the regenerator is hardly deteriorated.

Alternatively, when the layers on the resin film are formed at a predetermined distance from both ends in the axial direction of the cylinder, the central portion of the resin film without the layer has relatively low thermal conductivity. The heat accumulated in the resin film becomes difficult to escape. Therefore, the heat storage amount of the regenerator increases.

The layer can be easily formed by printing on a resin film as an ink material of a resin containing a component having high thermal conductivity. In this case, as the component having high thermal conductivity, at least one fine particle of gold, silver, copper, aluminum or carbon can be preferably used.

Furthermore, in a regenerator for a Stirling machine of still another example of the present invention, a resin film is formed at a portion having a predetermined distance from both ends of the regenerator in the cylindrical axis direction to increase the thickness. Therefore, wrinkles are less likely to occur when the resin film is wound. Therefore, the performance of the regenerator is stable.

[Brief description of drawings]

FIG. 1 is a perspective view showing the structure of a Stirling machine regenerator according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the regenerator.

FIG. 3 is a perspective view showing the structure of a Stirling machine regenerator according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing the structure of a Stirling machine regenerator according to a third embodiment of the present invention.

FIG. 5 is a perspective view showing the structure of a Stirling machine regenerator according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view showing the structure of a Stirling machine regenerator according to a fifth embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view showing a Stirling machine regenerator according to a sixth embodiment of the present invention.

FIG. 8 is a perspective view showing a structure of an example of a conventional Stirling machine regenerator.

FIG. 9 is a side sectional view showing an example of a free piston type Stirling refrigerator.

[Explanation of symbols]

1 Stirling machine regenerator 2,21,22 Resin film 2a protrusion 3 resin layers 4 resin film 20 Composite resin film

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor David Berkowitz             45701 Asen, Ohio, United States             North Congress Street 138

Claims (11)

[Claims] 1. A cylindrical regenerator for a Stirling machine formed by winding a belt-shaped resin film, wherein a layer having a higher thermal conductivity than the resin film is formed on the surface of the resin film. Regenerator for Stirling machines. 2. The Stirling machine regenerator according to claim 1, wherein the layer is formed only on one surface of the resin film. 3. The Stirling machine regenerator according to claim 1, wherein a plurality of minute protrusions are provided on the surface of the resin film. 4. A cylindrical Stirling machine regenerator, which is obtained by winding two belt-shaped resin films laminated with a layer having a higher thermal conductivity than these resin films. 5. A plurality of minute protrusions are provided on the exposed surface of the resin film.
A regenerator for a Stirling machine as described in. 6. The method according to claim 1, wherein the layer is formed at a portion having a predetermined distance from both ends in the axial direction of the cylinder.
The regenerator for a Stirling machine according to any one of 5 above. 7. The layer is formed at a predetermined interval in a direction parallel to the cylinder axis.
The regenerator for a Stirling machine according to any one of 6 above. 8. The layer is a resin layer containing a component having high thermal conductivity, and the component having high thermal conductivity includes gold, silver, copper,
The stirling machine regenerator according to any one of claims 1 to 7, wherein the regenerator is at least one fine particle of aluminum or carbon. 9. A cylindrical regenerator for a Stirling machine, comprising a resin film formed on the surface of a belt-shaped resin film, and wound around the resin film, and the resin film is formed from both ends in the axial direction of the cylinder. A regenerator for a Stirling machine, characterized in that it is formed in a portion having a distance of. 10. A cylinder in which a working gas is enclosed, a piston arranged to reciprocate in the cylinder, and a displacer arranged at a tip end side in the cylinder and reciprocating in a phase different from that of the piston. An expansion space formed between the displacer and the tip of the cylinder, a compression space formed between the displacer and the piston, and a flow of the working gas that connects the expansion space and the compression space. A Stirling refrigerator having a regenerator arranged on a road, wherein the Stirling machine regenerator according to any one of claims 1 to 9 is used as the regenerator. 11. A heat regeneration system for flowing gas, characterized in that the regenerator for Stirling machine according to any one of claims 1 to 9 is arranged in a donut-shaped space that serves as a flow path for reciprocating gas.