WO2006003756A1 - 熱交換器およびスターリング機関 - Google Patents
熱交換器およびスターリング機関 Download PDFInfo
- Publication number
- WO2006003756A1 WO2006003756A1 PCT/JP2005/008757 JP2005008757W WO2006003756A1 WO 2006003756 A1 WO2006003756 A1 WO 2006003756A1 JP 2005008757 W JP2005008757 W JP 2005008757W WO 2006003756 A1 WO2006003756 A1 WO 2006003756A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- corrugated fin
- coating layer
- cylindrical member
- outer shell
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/12—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using 3He-4He dilution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
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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
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
Definitions
- the present invention relates to a heat exchanger and a Stirling engine provided with the heat exchanger, and more particularly to a contact structure between a heat exchange member and an outer shell (cylindrical member) constituting a heat exchanger.
- a heat exchanger in a refrigerator or the like is equipped with a heat exchange member for performing heat exchange.
- Japanese Patent Application Laid-Open No. 2001-91075 describes a heat exchange for a Stirling engine, which includes a cylindrical member and a corrugated fin as a heat exchange member.
- the corrugated fin is attached to the inside of the cylindrical member. At this time, the corrugated fin is pressed against the cylindrical member using the ring-shaped member, and thereby the corrugated fin is pressure-bonded to the cylindrical member.
- Japanese Patent Application Laid-Open No. 2003-251459 describes heat exchange of a refrigerator having a heat exchange member mounted in a cylindrical case.
- a plating layer is formed on at least one of the outer circumferential surface of the heat exchange member and the inner circumferential surface of the cylindrical case, and heat exchange with the cylindrical case is performed by a eutectic alloy formed by a eutectic reaction with the plating layer.
- the heat transfer surface between the members is joined.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-91075
- Patent Document 2 JP 2003-251459 A
- the contact area between the corrugated fin and the cylindrical member can be obtained simply by crimping the corrugated fin to the inner peripheral surface of the cylindrical member as in the heat exchange described in JP-A-2001-91075. It is difficult to ensure sufficient. If the contact area between the corrugated fin and the cylindrical member is insufficient, the heat transfer efficiency to the corrugated fin force cylindrical member is lowered, resulting in a problem that the performance of the heat exchanger is lowered.
- the present invention has been made to solve the above-described problems, and can increase the contact area between a heat exchange member and an outer shell body to which the heat exchange member is attached. It is an object of the present invention to provide a heat exchange that can be performed and a Stirling engine equipped with the heat exchange. Means for solving the problem
- the heat exchanger according to the present invention includes a metal outer shell, a metal heat exchange member attached to the outer peripheral surface of the outer shell, and a peripheral surface of the outer shell. And a coating layer formed on at least one of the peripheral surface of the heat exchange member and press-contacting the heat exchange member to the outer shell.
- heat exchange member refers to a member having a function of exchanging heat with a working medium or the like.
- the coating layer only needs to cover at least a part of the peripheral surface of the outer shell and Z or the peripheral surface of the heat exchange member.
- the hardness of the coating layer is preferably lower than the hardness of at least one of the outer shell and the heat exchange member.
- the coating layer may be made of a material other than a metal material as long as the material has excellent thermal conductivity.
- the coating layer is made of a metal material, the outer shell body and the heat exchange member It is preferable to form an alloy layer formed by alloying the metal material constituting the coating layer and the metal material constituting at least one of the outer shell and the heat exchange member.
- the coating layer may be solidified after melting.
- the heat exchange according to the present invention includes a metal outer shell and a copper material or silver and tin that is attached to the outer shell and has a copper content of 99.99% or more.
- the outer shell can be formed of, for example, a cylindrical member, and the heat exchange member can be formed of, for example, a corrugated fin. In this case, the heat exchange member is mounted inside the outer shell.
- a Stirling engine according to the present invention includes the heat exchange described above. The invention's effect
- the heat exchange member is press-contacted to the outer shell body, so that the heat exchange member is simply compared with the case where the outer shell body is in contact with the coating layer.
- the contact area between the exchange member and the outer shell and the coating layer can be increased. Since the coating layer is formed on at least one of the surface of the outer shell and the surface of the heat exchange member, it can be said that the heat exchange member is a part of the outer shell. Therefore, the contact area between the heat exchange member and the outer shell and the coating layer increases, and as a result, the contact area between the heat exchange member and the outer shell can be increased.
- a copper material having a copper content of 99.999% or more or a copper material containing at least one of silver and tin is used as a material for the heat exchange member.
- the ductility of the heat exchange member itself can be improved.
- the deformation amount of the heat exchange member at the contact portion between the heat exchange member and the outer shell can be increased. It is possible to increase the contact area with the body.
- the Stirling engine of the present invention includes the heat exchanger as described above, a Stirling engine having a high-performance heat exchange in which a contact area between the heat exchange member and the outer shell is ensured. Is obtained.
- FIG. 1 is a cross-sectional perspective view of main parts of a heat exchanger according to Embodiment 1 of the present invention.
- FIG. 2 is a partially enlarged view of the heat exchanger shown in FIG.
- FIG. 3 is an enlarged view of the main part of FIG.
- FIG. 4 is a diagram showing a modification of the structure of FIG.
- FIG. 5 is a partially enlarged view of the heat exchanger according to Embodiment 2 of the present invention.
- FIG. 6 is an enlarged view of the main part of FIG.
- FIG. 7 is a diagram showing a modification of the structure of FIG.
- FIG. 8 is a partially enlarged view of a heat exchanger according to Embodiment 3 of the present invention.
- FIG. 9 is a partially enlarged view of a heat exchanger according to Embodiment 4 of the present invention.
- FIG. 10 is a cross-sectional view of a Stirling engine equipped with heat exchange according to the present invention. Explanation of symbols
- FIG. 1 is a perspective view of heat exchanger 1 according to Embodiment 1 of the present invention.
- FIG. 2 is a partially enlarged view of the heat exchanger 1 shown in FIG.
- the heat exchanger according to the first embodiment includes a metal cylindrical or bottomed cylindrical outer shell, a metal heat exchange member attached to the outer circumferential surface of the outer shell, and an outer shell.
- the heat exchanger 1 includes a metal cylindrical member or a bottomed cylindrical member (a member that becomes a heat radiating part or a heat absorbing part: hereinafter referred to as a cylindrical member) 4 as the outer shell body,
- a metal corrugated fin 2 as a heat exchange member mounted on the cylindrical member 4 and a metal ring-shaped member 3 are provided.
- the cylindrical member 4 is made of, for example, a metal material (including an alloy) excellent in thermal conductivity such as copper (Cu), copper alloy, stainless steel, aluminum (A1), aluminum-um alloy, or these materials. It can be composed of a combined composite material.
- a metal material including an alloy
- thermal conductivity such as copper (Cu), copper alloy, stainless steel, aluminum (A1), aluminum-um alloy, or these materials. It can be composed of a combined composite material.
- a corrugated fin 2 is attached inside a cylindrical member 4.
- the corrugated fin 2 is a member that exchanges heat with the working medium.
- the outer diameter of the corrugated fin 2 is set to be approximately equal to the inner diameter of the cylindrical member 4. Accordingly, by applying a force in a direction toward the radially outer side of the cylindrical member 4 to the inner periphery of the corrugated fin 2, the outer peripheral surface of the corrugated fin 2 is changed to the inner peripheral surface of the cylindrical member 4.
- the outer peripheral surface of the corrugated fin 2 can be pressed against the inner peripheral surface of the cylindrical member 4.
- Corrugated fi copper 2 can be made of copper or a copper alloy.
- the ring-shaped member 3 has a function of mainly pressing and fixing the corrugated fins 2 against the inner peripheral surface of the cylindrical member 4, and can be made of the same material as the cylindrical member 4, but the cylindrical part It may be made of a material different from material 4.
- the ring-shaped member 3 is made of a material having higher hardness than the material constituting the corrugated fin 2.
- the ring-shaped member 3 typically has an outer diameter slightly larger than the inner diameter of the corrugated fin 2, and after the corrugated fin 2 is mounted inside the cylindrical member 4, the inner surface of the corrugated fin 2 Press fit. At this time, by forming the ring-shaped member 3 with a material having a hardness higher than that of the material forming the corrugated fin 2, the amount of deformation of the ring-shaped member 3 at the time of the press-fitting can be reduced. It is possible to reliably and effectively apply a force directed radially outward to the corrugated fin 2.
- the coating layer 5 is formed on the inner peripheral surface of the cylindrical member 4.
- the corrugated fin 2 has an outer peripheral portion 2a, an inner peripheral portion 2b, and a connecting portion that connects them and extends in the radial direction of the cylindrical member 4. It has a periodic uneven shape in the direction.
- the outer peripheral portion 2 a of the corrugated fin 2 is pressed into contact with the coating layer 5 on the inner peripheral surface of the cylindrical member 4, and the inner peripheral portion 2 b of the corrugated fin 2 is pressed into contact with the outer peripheral surface of the ring-shaped member 3.
- the coating layer 5 is typically made of metal, but it is also conceivable to use materials other than metal.
- the coating layer 5 can be formed by a technique such as plating or vapor deposition.
- gold Au
- the coating layer 5 is typically formed on the entire inner peripheral surface of the cylindrical member 4 with a thickness of about several / z m, but can be selectively formed only at a necessary location.
- the covering layer 5 may have a single layer structure or a multi-layered structure. When the covering layer 5 is formed of a multi-layered structure, the material, hardness, thickness, etc. of each layer may be the same, but they may be different.
- Embodiment 1 An important feature of Embodiment 1 is that a heat exchange member is attached to the outer shell so as to deform the coating layer.
- the corrugated fin 2 is mounted in the cylindrical member 4 so as to deform the coating layer 5.
- the cover layer 5 may be deformed by press-fitting the fin 2. After the corrugated fin 2 is inserted into the cylindrical member 4, the corrugated fin 2 is moved to the cylindrical member 4 side by the ring-shaped member 3 or the like.
- the covering layer 5 can be deformed by the outer peripheral portion 2a of the corrugated fin 2 by pressing.
- the corrugated fin 2 Since the corrugated fin 2 is pressure-bonded to the cylindrical member 4 so as to deform the covering layer 5 in this way, the corrugated fin 2 can be attached to the cylindrical member 4 via the deformed covering layer 5.
- the covering layer 5 can be disposed around the contact portion between the corrugated fin 2 and the cylindrical member 4. In either case, the contact area between the corrugated fin 2 and the coating layer 5 can be increased as compared with the case where the corrugated fin 2 is simply brought into contact with the coating layer 5.
- the minute gap between the coating layer 5 and the corrugated fins 2 and Z or the cylindrical member 4 can also be reduced by compressing and deforming the coating layer 5 that is just that. This can also contribute to an increase in the contact area between the corrugated fin 2 and the cylindrical member 4.
- the hardness of the coating layer 5 is preferably lower than the hardness of at least one of the corrugated fins 2 and the cylindrical member 4, preferably the corrugated fins 2. As a result, the contact area between the corrugated fin 2 and the covering layer 5 can be further increased if the covering layer 5 can be easily deformed.
- FIG. 3 shows an enlarged view of a contact portion (contact portion) between the outer peripheral portion 2a of the corrugated fin 2 and the inner peripheral portion of the cylindrical member 4 in FIG.
- the coating layer 5 is deformed by pressing the outer peripheral portion 2a of the corrugated fin 2 against the coating layer 5, and accordingly, the coating layer 5 is formed around the outer peripheral portion 2a of the corrugated fin 2. A swell is formed.
- the covering layer 5 can be extended on the side wall surface of the outer peripheral portion 2a of the corrugated fin 2, and the corrugated fin 2 and the covering The contact area with the layer 5 can be increased.
- the covering layer 5 since the covering layer 5 is compressed and deformed between the corrugated fin 2 and the cylindrical member 4, the vicinity of the outer peripheral portion 2a of the corrugated fin 2, the vicinity of the inner peripheral surface of the cylindrical member 4, etc.
- the coating layer 5 can also be inserted into the minute gaps that may exist. This can also effectively contribute to an increase in the contact area between the corrugated fin 2 and the cylindrical member 4.
- FIG. 4 shows a modification of the first embodiment.
- the coating layer in the state shown in Fig. 3 5 is heated to melt and then solidified.
- the contact area between the corrugated fin 2 and the covering layer 5 can be further increased, and in addition, the outer peripheral portion 2a of the corrugated fin 2 and the cylindrical member 4 can be It is possible to further reduce the minute gaps that may exist.
- the covering layer 5 located in the vicinity of the corrugated fin 2 can be adhered to the surface of the corrugated fin 2 at the time of melting.
- the contact area can be further increased.
- an alloy layer can be formed by alloying with at least one of the metal materials constituting one.
- at least one of the corrugated fin 2 and the cylindrical member 4 is made of a copper material
- the coating layer 5 is made of a Cu—Sn—Ag (Bi) layer or a Cu—Sn—Ag (In) layer having a thickness of about 10 / zm.
- an alloy layer can be formed between the corrugated fin 2 and the cylindrical member 4. In this case, the same effect as in the above case can be expected.
- solder materials other than those described above can also be used as the material of the coating layer 5. Further, the alloying temperature can be lowered to about 220 ° C. by including bismuth (Bi) as an impurity in the coating layer 5.
- Embodiment 2 of the present invention will be described with reference to FIGS.
- a coating layer is formed on the heat exchange member side. Specifically, as shown in FIG. 5, the coating layer 5 is formed on the surface of the corrugated fin 2.
- Other configurations are basically the same as those in the first embodiment. In the case of the second embodiment, the same effect as in the first embodiment can be expected.
- FIG. 6 shows an enlarged view of a contact portion (contact portion) between the outer peripheral portion 2a of the corrugated fin 2 and the inner peripheral portion of the cylindrical member 4 in FIG.
- the corrugated fin 2 is pressed against the cylindrical member 4 side, so that the coating layer positioned between the corrugated fin 2 and the cylindrical member 4 is used. 5 is deformed, and is projected laterally along the surface of the cylindrical member 4. Also, the coating layer Since 5 is compressed and deformed, the above-described minute gap between the corrugated fin 2 and the cylindrical member 4 can be reduced. Therefore, as in the case of the first embodiment, the contact area between the corrugated fin 2 and the cylindrical member 4 can be increased.
- FIG. 7 shows a modification of the second embodiment.
- the coating layer 5 in the state shown in FIG. 6 may be heated and melted, and then solidified.
- the material of the coating layer 5 by selecting a material having good wettability with respect to the cylindrical member 4 as the material of the coating layer 5, the material is positioned in the vicinity of the cylindrical member 4 when the coating layer 5 is melted.
- the coating layer 5 can be attached to the surface of the cylindrical member 4. As a result, a contact area equal to or greater than that in FIG. 6 can be secured. Further, by melting the coating layer 5, the above-described minute gap between the outer peripheral portion 2 a of the corrugated fin 2 and the cylindrical member 4 can be further reduced.
- the metal material constituting the coating layer 5 and the metal constituting at least one of the corrugated fin 2 and the cylindrical member 4 An alloy layer formed by alloying the material may be formed.
- the specific material for each element can be the same as in the first embodiment.
- a single layer or a plurality of layers of the coating layer 5 may be formed on the surfaces of both the outer peripheral portion 2 a of the corrugated toffine 2 and the cylindrical member 4.
- a coating layer is selectively formed on at least one of the surface of the outer shell and the surface of the heat exchange member. More specifically, a coating layer is selectively formed at and near the joint between the outer shell and the heat exchange member.
- the coating layer 5 is formed only between the outer peripheral portion 2 a of the corrugated fin 2 and the cylindrical member 4.
- the covering layer 5 may be formed on at least one of the corrugated fin 2 and the cylindrical member 4.
- only the outer peripheral portion 2a of the corrugated fin 2 may be immersed in a plating solution.
- a mask is selectively formed on the inner peripheral surface of the cylindrical member 4, and the portion where the mask is formed Less than The coating layer 5 may be formed on the inner peripheral surface of the outer cylindrical member 4 by vapor deposition or the like.
- the contact area between the corrugated fin 2, the cylindrical member 4 and the covering layer 5 can be increased, and the corrugated fin A minute gap between the in 2 and the cylindrical member 4 can be reduced.
- the coating layer 5 may be deformed and then melted, and then the coating layer 5 may be solidified. In this case, the same effect as in the first and second embodiments can be expected.
- Embodiment 4 of the present invention will be described with reference to FIG.
- a coating layer is formed between the outer shell body and the heat exchange member.
- the ductility of the heat exchange member itself without forming a strong coating layer is increased. Improve.
- FIG. 9 shows a partially enlarged view of heat exchanger 1 in the fourth embodiment.
- a coating layer is not formed between the outer peripheral portion 2a of the corrugated fin 2 and the cylindrical member 4, and the outer peripheral portion 2a of the corrugated fin 2 and the cylindrical member 4 are connected. Direct contact.
- the ductility of the corrugated fin 2 itself is improved.
- the corrugated fin 2 when the corrugated fin 2 is substantially made of one kind of material, it may be possible to improve the ductility by increasing the purity of the material. .
- the ductility may be improved by adding other materials to the material constituting Korge 1-to-Fin 2.
- the ductility of the corrugated fin 2 itself is improved by producing the corrugated fin 2 using a copper material having a copper content of 99.99% or more. be able to.
- the corrugated fin 2 is made of a material containing copper and a metal material other than copper
- the corrugated fin 2 is made of a copper material containing copper or a material other than copper, such as silver or tin (a material mainly composed of copper). It is conceivable to configure.
- the ductility of the copper material can be improved by adding a material such as silver or tin to the main component copper.
- the corrugated fin 2 By improving the ductility of the corrugated fin 2 itself as described above, the corrugated fins 2 can be easily deformed. Accordingly, the corrugated fin 2 can be deformed along the inner peripheral surface of the cylindrical member 4 at a location where the corrugated fin 2 is pressed against the inner peripheral surface of the cylindrical member 4. The contact area with 4 can be increased.
- the metal heat exchange member is mounted inside the metal outer shell body.
- the metal heat exchange member is disposed outside the metal outer shell body.
- the idea of the present invention can also be applied when mounting the replacement member.
- Embodiment 5 of the present invention will be described with reference to FIG.
- the case where the heat exchanger described in each of the above embodiments is incorporated in a Stirling engine will be described.
- the Stirling engine 7 includes a casing 12, a cylinder 13 assembled to the casing 12, a piston 14 and a displacer 15 reciprocating in the cylinder 13, a regenerator 16, and a compression space.
- Working space 17 including 17A and expansion space 17B, heat release part 18 (worm head), heat absorption part 19 (cold head), linear motor 23 as piston driving means, piston spring 24, displacer spring 25 And a displacer rod 26 and a back pressure space 27.
- Various components such as a cylinder 13, a linear motor 23, a piston spring 24, and a displacer spring 25 are assembled to the casing 12.
- the inside of the Stirling engine 7 is filled with a working medium such as helium gas, hydrogen gas, or nitrogen gas.
- the cylinder 13 has a substantially cylindrical shape, and receives the piston 14 and the displacer 15 therein so as to be capable of reciprocating.
- the piston 14 and the displacer 15 are coaxially spaced apart, and the piston 14 and the displacer 15 partition the working space 17 in the cylinder 13 into a compression space 17A and an expansion space 17B.
- the working space 17 is a space located closer to the displacer 15 than the end face on the displacer 15 side of the piston 14, and a compressed air is interposed between the piston 14 and the displacer 15.
- a space 17A is formed, and an expansion space 17B is formed between the displacer 15 and the heat absorbing portion 19.
- the compression space 17A is mainly surrounded by the heat dissipation part 18, and the expansion space 17B is mainly surrounded by the heat absorption part 19.
- a regenerator 16 in which a film is wound with a predetermined gap on the inner peripheral surface of the tube 8 is disposed.
- the compression space 17A and the expansion space 17B communicate with each other through the vessel 16.
- a closed circuit is formed in the Stirling engine 7.
- the working medium enclosed in the closed circuit flows in accordance with the operation of the piston 14 and the displacer 15, thereby realizing a reverse Stirling cycle.
- a linear motor 23 is disposed in the back pressure space 27 located outside the cylinder 13.
- the linear motor 23 has an inner yoke 20, a movable magnet portion 21, and an outer yoke 22, and the piston 14 is driven in the axial direction of the cylinder 13 by the linear motor 23.
- One end of the piston 14 is connected to a piston spring 24 composed of a plate panel or the like.
- the piston spring 24 functions as an elastic force applying means for applying an elastic force to the piston 14. By applying an elastic force by the piston spring 24, it is possible to stably reciprocate the piston 14 in the cylinder 13 periodically.
- One end of the displacer 15 is connected to a displacer spring 25 via a displacer rod 26.
- the displacer rod 26 is disposed through the piston 14, and the displacer spring 25 is constituted by a plate panel or the like.
- the peripheral edge of the displacer spring 25 and the peripheral edge of the piston spring 24 are supported by a support member that extends from the linear motor 23 toward the back pressure space 27 of the piston 14.
- a back pressure space 27 surrounded by the casing 12 is disposed on the side opposite to the displacer 15 with respect to the piston 14.
- the back pressure space 27 includes an outer peripheral region positioned around the piston 14 in the casing 12 and a rear region positioned closer to the piston spring 24 (rear side) than the piston 14 in the casing 12.
- a working medium is also present in the back pressure space 27.
- a heat exchanger 1A high temperature side heat exchanger
- a heat exchanger 1B low temperature side heat exchanger
- the heat exchanger described in the form is used. That is, the outer peripheral surface of the corrugated fin 2 is connected (joined) to the inner peripheral surfaces of the heat radiating unit 18 and the heat absorbing unit 19 by the method of each of the above-described embodiments.
- the contact area between the heat dissipating part 18, the heat absorbing part 19 and the corrugated fin 2 can be increased. That is, a sufficient contact area between the heat exchange member and the outer shell in heat exchange can be ensured. Therefore, the thermal resistance in heat exchange can be reduced, and heat transfer loss can be reduced. As a result, a Stirling engine having high-performance heat exchange with reduced thermal resistance can be obtained. For example, when used as a refrigerator, the refrigeration capacity can be improved.
- the linear motor 23 is operated to drive the piston 14.
- the piston 14 driven by the linear motor 23 approaches the displacer 15 and compresses the working medium (working gas) in the compression space 17A.
- the high-pressure working medium that has flowed into the expansion space 17B has the displacer 15 on the piston 14 side.
- the displacer 15 starts to move in a direction in which the piston 14 also moves away.
- the working medium in the expansion space 17B passes through the regenerator 16 and returns to the compression space 17A side again.
- the temperature of the working medium rises. In other words, this process corresponds to an equal volume heating process in a reverse Stirling cycle.
- the present invention can be effectively applied to a heat exchanger and a Stirling engine equipped with the heat exchanger.
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Combustion & Propulsion (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/630,692 US20090193804A1 (en) | 2004-07-06 | 2005-05-13 | Heat exchanger and stirling engine |
BRPI0513132-4A BRPI0513132A (pt) | 2004-07-06 | 2005-05-13 | trocador de calor e motor de stirling |
KR1020077002797A KR20070035063A (ko) | 2004-07-06 | 2005-05-13 | 열교환기 및 스털링 기관 |
EP05739216A EP1780480A1 (en) | 2004-07-06 | 2005-05-13 | Heat exchanger and stirling engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004198807A JP3790252B2 (ja) | 2004-07-06 | 2004-07-06 | 熱交換器およびスターリング機関 |
JP2004-198807 | 2004-07-06 |
Publications (1)
Publication Number | Publication Date |
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WO2006003756A1 true WO2006003756A1 (ja) | 2006-01-12 |
Family
ID=35782570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/008757 WO2006003756A1 (ja) | 2004-07-06 | 2005-05-13 | 熱交換器およびスターリング機関 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090193804A1 (ja) |
EP (1) | EP1780480A1 (ja) |
JP (1) | JP3790252B2 (ja) |
KR (1) | KR20070035063A (ja) |
CN (1) | CN1981167A (ja) |
BR (1) | BRPI0513132A (ja) |
WO (1) | WO2006003756A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4297177B2 (ja) * | 2007-04-03 | 2009-07-15 | 株式会社デンソー | 熱交換器用チューブ |
CA2828021C (en) * | 2011-03-01 | 2019-01-29 | Dana Canada Corporation | Coaxial gas-liquid heat exchanger with thermal expansion connector |
KR20160069454A (ko) | 2014-12-05 | 2016-06-16 | 선박안전기술공단 | 스털링 엔진의 디스플레이서 피스톤 구조 |
GB201513415D0 (en) * | 2015-07-30 | 2015-09-16 | Senior Uk Ltd | Finned coaxial cooler |
JP6510928B2 (ja) * | 2015-07-31 | 2019-05-08 | ツインバード工業株式会社 | スターリングサイクル機関 |
CN105756804B (zh) * | 2016-02-26 | 2017-12-12 | 中国科学院理化技术研究所 | 一种用于自由活塞斯特林发动机的热端换热器 |
US9945322B2 (en) * | 2016-04-14 | 2018-04-17 | Sunpower, Inc. | Stirling engine or cooler heat exchanger |
US11032944B2 (en) * | 2017-09-29 | 2021-06-08 | Intel Corporation | Crushable heat sink for electronic devices |
CN108453452A (zh) * | 2017-10-31 | 2018-08-28 | 山东中科万隆电声科技有限公司 | 斯特林机换热器翅片焊接结构及其焊接方法 |
US11665858B2 (en) | 2018-04-03 | 2023-05-30 | Raytheon Company | High-performance thermal interfaces for cylindrical or other curved heat sources or heat sinks |
US11150025B2 (en) | 2018-05-10 | 2021-10-19 | Raytheon Company | Heat exchangers for multi-axis gimbal pointing or targeting systems |
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JPH09152299A (ja) * | 1995-11-30 | 1997-06-10 | Sanyo Electric Co Ltd | 再生サイクルを用いた外燃機関の熱交換器 |
JP2001091075A (ja) * | 1999-09-27 | 2001-04-06 | Sharp Corp | スターリング機関用熱交換器 |
JP2004163038A (ja) * | 2002-11-14 | 2004-06-10 | Sanyo Electric Co Ltd | スターリング冷凍機 |
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US3831247A (en) * | 1971-11-22 | 1974-08-27 | United Aircraft Prod | Method of metallurgically bonding a internally finned heat exchange structure |
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2004
- 2004-07-06 JP JP2004198807A patent/JP3790252B2/ja not_active Expired - Fee Related
-
2005
- 2005-05-13 KR KR1020077002797A patent/KR20070035063A/ko active IP Right Grant
- 2005-05-13 US US11/630,692 patent/US20090193804A1/en not_active Abandoned
- 2005-05-13 CN CNA200580022732XA patent/CN1981167A/zh active Pending
- 2005-05-13 EP EP05739216A patent/EP1780480A1/en not_active Withdrawn
- 2005-05-13 WO PCT/JP2005/008757 patent/WO2006003756A1/ja not_active Application Discontinuation
- 2005-05-13 BR BRPI0513132-4A patent/BRPI0513132A/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09152299A (ja) * | 1995-11-30 | 1997-06-10 | Sanyo Electric Co Ltd | 再生サイクルを用いた外燃機関の熱交換器 |
JP2001091075A (ja) * | 1999-09-27 | 2001-04-06 | Sharp Corp | スターリング機関用熱交換器 |
JP2004163038A (ja) * | 2002-11-14 | 2004-06-10 | Sanyo Electric Co Ltd | スターリング冷凍機 |
Also Published As
Publication number | Publication date |
---|---|
CN1981167A (zh) | 2007-06-13 |
EP1780480A1 (en) | 2007-05-02 |
JP2006022968A (ja) | 2006-01-26 |
KR20070035063A (ko) | 2007-03-29 |
BRPI0513132A (pt) | 2008-04-29 |
JP3790252B2 (ja) | 2006-06-28 |
US20090193804A1 (en) | 2009-08-06 |
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