TW521121B - Stirling refrigerating device - Google Patents

Abstract

A stirling refrigerating device comprises a housing having a crank chamber, a compression cylinder, a compression piston, an expansion cylinder, an expansion piston, an oil seal and a buffer tank, wherein the respective driving shafts of two stirling refrigerating units having the same construction, of which said cylinders are operated through crank and rod driven by the rotation shaft in said crank chamber, are connected integrally on the same axis so as to be driven by one driving source (motor), whereby the mechanical balance of rotating portion or reciprocating portion is available, the mechanical loss is reduced, the refrigerating ability is improved, the pressure variation of buffer space and crank chamber is restrained and the deterioration or the wearing of bellows for oil seal is prevented.

Description

521121 V. Description of the invention (3) The way of degree movement constitutes the cranks 538a, b. When the compression piston 56 7 moves from the bottom dead center, the moving gas in 566 is compressed. Top dead ^%, compression space During this time, the 'inflating piston 5 9 3 will move downwards upwards. After moving to the top dead point, as the compression piston 5 67 rises upward, 〇up is sent from the gas flow path 675 to the expansion side% ^ The contracted action gas passes through the gas flow: 675v to ~ 犄, Moving gas in the heat storage section 6 74 two rooms 592. During this period the temperature rises within 592. Ding ”and“ 乂 ”are changed to suppress the expansion space 674. When the operating gas passes through the heat storage unit 674, its heat will be stored in the heat storage unit P through the expansion piston 5 9 3 to reach the bottom dead point, and the compression point moves to the bottom dead point. The action gas will inflate: the shrinkage piston 567 will be from the upper dead rail to ΐ :; the expansion process is an isothermal expansion process, so the suction with the expansion Γΐ9 head (C〇1d head) part 719, and the result ' The temperature of the cold head will decrease and generate cold and heat. The compression piston 5 6 7 is near the bottom dead center, and the expansion piston 593 starts to connect η κ upwards through the gas flow path 675 for heat exchange in the heat storage section 674 and returns to the compression space 56 6 &Amp; 2 The above-mentioned cycle is operated as a cycle, and the cold and heat of the cold head 7 1 9 is used for cold and heat utilization equipment. ^ When supplying a large amount of cold and heat to the cold and heat utilization equipment, it is necessary to freeze the above-mentioned stirling A plurality of machines 501 are operated in parallel.

313504.ptd Page 10 521121 V. Description of the invention (4) This day guard 'requires a large installation area, and it is the main reason for the high cost because it has fewer parts. Therefore, the present invention has as its first object to provide a cheap, small, Stirling freezer which can supply a large amount of heat. Also, although the compressed gas 5 6 6 is heated up by compression, if the gas flows directly into the expansion space 5 9 2 from the animal heat section 6 7 4, it will flow into the expansion space 5 9 2 The temperature of the working gas rises, and it expands in a high-humidity area, so that the freezing efficiency cannot be improved. Therefore, a heat sink 6 9 5 is provided so as to cover the compression space 5 6 6 so as to discharge the heat of the operating gas to the outside, and thereafter, it is allowed to flow into the expansion space 5 9 2 through the heat storage section 6 7 4. In FIG. 20, the operating gas is radiated into the cooling water by the radiator 695, and the cooling water is circulated by the circulation pump 6 9 8 and is radiated to the outside air through the radiator heat exchanger 6 9 6. As described above, cooling the working gas with cooling water is very important to improve the freezing efficiency. Therefore, it is necessary to dissipate the heat efficiently with the radiator 6 9 5. Therefore, the present inventors have disclosed in Japanese Patent Laid-Open No. 2000-1866-618, and Japanese Patent Laid-Open No. 200-186619 that the outer peripheral surface and the inner peripheral surface are cast by iost wax casting. Invention of a heat sink 695 forming a fin. However, at the time of installing the above-mentioned radiator 695, it is necessary to assemble a compressor or an expansion cylinder 59W to install and disassemble the heat sink τ to manufacture and assemble the cost quotient, which has become a factor for increasing costs. Therefore, the present invention provides a heat sink with high heat dissipation efficiency, which is easy and capable of 313504.ptd Page 11 521121 V. Description of the invention (5) I 埶 waii that is manufactured at a low price # β Also, the ... The freezer is for the second purpose. The handle is t. The bearings 521, crank = 537, connecting rod 541, cross guide 544, and other moving parts of the motor shaft 51 7 and crank shaft 53 7 are suppressed. Oil 748, oil 748 are used in the crank * door crank space 536. It is the bottom of the storage room of the four handle workshop 5 3 6. The movement of the crank 538 lifts the oil 748 and divides it to lubricate the movable part. The oil 748 is attached to the expansion piston 593 and the compression piston 567 it. The reciprocating motion of the oil 748 will slowly invade the compression space 5 6 6 and 92, so that the action gas is mixed, and carbonization is caused by heat. Problems such as lowered freezing efficiency. Therefore, conventionally, an oil seal (0 i 1 sea 1) mechanism is provided to prevent the oil 74 8 from adhering to the waste expansion piston 593 and the compression piston 567 and intruding into the compression space 566 and the expansion space 5 9 2. Conventionally, although the above-mentioned oil seal mechanism uses a 0 ring, the sliding of the expansion piston rod 600 and the compression piston rod 569 causes friction of the 0 ring, so it is not easy to obtain stable sealing characteristics. Therefore, the present inventors proposed in Japanese Patent Laid-Open No. 2000-86 6 β i 9 that an oil-sealed membrane box (〇i 1 is provided between the crosshead 544 and the compression piston 5 67 or the expansion piston 593 sea 1 be 1 1 0ws)). At this time, the upper end portion of the oil seal diaphragm box is installed in a sealed manner with the expansion piston rod 600 or the compression piston rod 5 6 9, and its lower end portion is sealedly installed in the crank case 5 3 5, and the oil seal film The box is retracted together with the reciprocating motion of the expansion piston rod 600 or the compression piston rod 5 6 9

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The crank space 5 3 6 is hidden by the oil seal glands: tongue :; or the space on the side of the expansion piston 593 (this;

Therefore, the oil 748 splashed by the crank 538 does not invade the back pressure. The moon dagger prevents the oil 748 from adhering to the expansion piston 593 or the compression piston 567, = the problem of the compression space 5 6 6 or the expansion space 5 9 2. It may not be able to achieve steepness even after passing through the sealing member even after the sealing movement, or it may be caused by long-term operation. However, due to the expansion and contraction of the oil seal capsule, its lower end is fixed to the crank case 535, the back pressure chamber 6 5 4 and the crank The confidentiality of space 5 3 6 reduces its confidentiality. The chamber and the crank are empty. Therefore, the present invention has a third object to provide a Stirling refrigerator which can maintain the confidentiality of the back pressure for a long period of time. On the other hand, when the back pressure chamber 654 becomes air-tight, the pressure of the back pressure chamber 654 fluctuates with the reciprocation of the plug 567 or the expansion piston 593. θ Because the pressure fluctuation described above becomes a power load for driving the compression piston 5β7 or the expansion piston 593 ', the cooling efficiency is lowered. In addition, due to the pressure fluctuation of the back pressure chamber 654 and the temperature rise of the crank space 536, a large differential pressure will occur between the crank space 536 and the back pressure chamber 654, and the differential pressure will cause the oil seal diaphragm box to be damaged, which will easily break. Or, the problem that the oil 7 4 8 easily penetrates the back pressure chamber 6 5 4 may occur. Therefore, the present invention is to provide an oil seal mechanism capable of suppressing the pressure change of the back pressure chamber 654 and preventing the freezing efficiency and the characteristics of the oil seal film box from being lowered.

521121 Fifth, the invention description door) Γ: Tring refrigerating machine [Mao Mingzhi's overview] Geben's invention has a drive conversion unit of the generating mechanism; it has a dream action gas expansion force and reciprocates in the compression portion of the piston, a quantitative phase To the freezer, drive the two units through the above-mentioned, J, mold, and achieve the 'power conversion into reciprocating power of the shrinking piston or expansion movement force conversion mechanism and the sliding part of the crank case The internal #change mechanism side of the empty # space is used as the back oil seal mechanism; the back machine 1 structure; the rotation axis of the two talents is the fourth purpose. Equipped with a device; It consists of reciprocating expansion, compression, and cold and heat production with complex motion, and the cost reduction unit is the space where the oil is transmitted by the active power of the power plug, which is used as the pressure chamber. It is equipped with an expansion cylinder that plugs the rotary power and has a generating part to generate a low and high mechanism. The crank case of the mechanism reached by the following mechanism replacement rod is divided into two cranks to prevent the crank from replacing the mechanism. It is connected to generate rotary force to change the reciprocating bulge; it is shaped to connect the cold and hot of the operating air expansion piston to produce a cold and hot driving device and the freezing capacity of the mechanism; it is fascinated by the formed movement; it is inserted into a sealed room The rotating power of the rotating shaft of the rotating shaft that presses the oil from the crank shaft is the reciprocating power in the expansion cylinder to make and prepare the compression ratio of the compression piston compressed by the reciprocating body to preheat The Stirling of the production department is driven by the sharing of one unit and the success of Pei Zhicheng: there will be living at the bottom of the complex power transmission. The piston's space aggression adjustment and the rotating force transmission mechanism of the rotary coupling machine have a rod, which can be expanded into the back pressure mechanism; the power can be reached to the pressure; the piston is used to hold and expand the power of the piston pressure chamber. Power adjustment generator makes two

521121 V. Description of the invention (8) A crank space communication mechanism that connects the crank spaces of the connected cold and heat generating units; and a back pressure chamber communication mechanism that connects the back pressure chambers of the two connected cold and heat generating units. With the above structure, the cold and heat generating units of two units can be efficiently driven by one driving device, so that the driving devices can be shared and the device can be miniaturized, and a stable prevention of oil from entering the back pressure chamber can be provided. And Stirling freezer with high refrigeration capacity, high reliability and low cost. In addition, the back pressure chamber on the compression piston side communicates with the back pressure chamber on the expansion piston side through the back pressure chamber communication mechanism, so that it is possible to suppress an increase in driving force caused by the pressure fluctuation of the back pressure chamber, and to A Stirling freezer with high freezing capacity is provided. In addition, since the pressure adjusting mechanism is communicated with the crank space and the back pressure chamber, respectively, and a buffer groove is provided to mitigate the pressure change of the back pressure chamber and the crank space, it can suppress the driving caused by the pressure change of the back pressure chamber. The increased force can provide a Stirling freezer with high freezing capacity. In addition, the pressure adjustment mechanism is provided with a pressure adjustment diaphragm (be 1 1 0ws) that is expanded and contracted by a differential pressure between the back pressure chamber and the crank space to reduce pressure changes in the back pressure chamber and the crank space, thereby preventing oil The back pressure chamber is penetrated from the crank space, and an increase in driving force caused by the pressure change of the back pressure chamber is suppressed, and a Stirling refrigerator with high freezing capacity is provided. In addition, one end of the oil seal mechanism is hermetically fixed to the crank case, and the other end is hermetically fixed to the piston rod, and separates the crank space from the back pressure chamber, and expands and contracts by moving the piston rod. An oil-tight capsule is formed to form the oil-sealing mechanism, so that the back pressure chamber and the crank chamber can be reliably and inexpensively

313504.ptd Page 15 521121 V. Description of the invention (9) Sealed areas

To prevent oil from entering the back pressure chamber from the crank space. It is also provided with a cylinder housing having a compression cylinder formed therein and provided with the lower end portion of the expanded steam red, and the cylinder housing is formed to perform heat exchange with the operating gas compressed by the compression unit and flow to release the heat to the outside. Cooling; gp t cooling water path, and the cooling water path formed by the cylinder shells of two connected cold and heat generating sections are connected in parallel or in series to make the compression action ^ The body can efficiently release heat and improve the cooling standard effectiveness. In addition, the cylinder surfaces of the expansion cylinder and compression cylinder are formed with a thickness of Rz3.0 micron or less to reduce the friction of the piston ring (P ist ο nring) fitted in the compression piston or the expansion piston, thereby preventing the Reduced refrigeration efficiency due to long-term transportation. In addition, since the expansion cylinder is press-fitted into the cylinder casing and installed, it is possible to easily and reliably install the expansion cylinder. The cylinder housing is made of FC material or FCD material, preferably it is made of FC3 0 0, in order to prevent the leakage of the operating gas, reduce the manufacturing cost or the cost of parts, and reduce the sliding friction characteristics of the piston ring or the expansion piston ring. Wait for improvement. Furthermore, the expansion cylinder which is formed by press-fitting the cylinder housing with steel material is preferably made of SUS material. It is more preferably formed by using SUS303 or SUS304 in order to facilitate the manufacture and improve the sliding friction characteristics of the expansion piston ring. [Best Embodiment of the Invention] The best embodiment of the present invention will be described below with reference to the drawings. The Stirling cold heading machine is mainly composed of a cold and heat generating part that generates cold and heat and a driving device that drives the cold and heat generating part.

521121 V. Description of the invention (ίο) Figure 1 shows a partial cross-sectional view of the front side of the Dongji 1 with a health section 33 of one unit to drive a hot and cold Stirling A device 11 to produce a hot and cold production ^ The outline structure of the first, the above structure = shows the Stirling cold rolling J (single) Stirling refrigerator 2 of FIG. 1. The forest freezer 1 is described as a single unit. Fig. 4 shows a schematic configuration of a cold unit produced by one unit and two units of cold and hot 1 / unit to produce cold units. A cross-sectional view of the τ freezer 1. Fig. 5 is a diagram illustrating the above-mentioned structure 30, "East machine 1 is described as a double Stirling cold rolling machine. Fig. 6 is an explanatory diagram showing the general structure of cold and heat generation. Figure 7 shows that their structures are roughly the same, U = double Stirling cold ③ drive 3 of the machine 3 Tring "two units of machine 3: with the vital part = Therefore, the following description A structure is roughly the same. Basic structure, and Speaking about ί: 2 single Stirling cold rolling machine 2 to explain Α Although two units can be used = the inherent structure of Lin cold reducing machine 3: 33: make it and double; dagger drive, cold and heat generating unit of two units May evening-the drive device 11 of the platform costs two '/ actions', but then it needs to be transformed into a problem that the installation area is increased. At the same time, the large platform of the device = production Γ: Γ3 provides a The driving device U is used to drive the: The double-stirling cold-pressing machine 3 composed of i3 3 drives the U-side cooling in the cold-heat generating section 33 of 313504.ptd Page 17 521121 V. Description of the invention (11 ) The heat generating section 33 is referred to as a first cold and heat generating section 33A, and the other cold and heat generating section 33 is referred to as a second cold and heat generating section 33A. Health section 33B. The above-mentioned Stirling freezer 1 can use helium, hydrogen, nitrogen, and the like. The driving device 11 is provided with a motor case 丨 3 which forms a motor chamber 丨 3 inside the motor chamber. A motor 14 including a stator 15 and a rotor 16m is provided in 13 to rotate forward and backward. The rotational power generated by the motor 14 is output through the motor shaft 17. * Cold and heat generation The portion 33 is provided with: a power conversion portion 3 4 that converts the rotational power generated by the driving device 丨 丨 into a linear reciprocating power; a compression portion 64 that compresses the operating gas, and an expansion portion 9 that expands the operating gas; It is installed in the heat storage unit that communicates with the gas flow path 175 of the compression space 66 and the expansion space 92 to store the heat of the two-moving action gas 丨 7 4; the heat of the action gas that will be received by the compression part 64 and raises the shirt The heat radiation part released to the outside stores the heat and cold generated by the expansion of the operating gas in the expansion part 90 to supply λ ^ I to use the cold head 219 of the machine; to prevent the oil 248 in the crank space 36 from invading -1 life space 6 6 or expansion Oil seal 1 2 8 of service space 9 2; and suppression of back pressure The pressure adjustment part 1 of the differential pressure generated between the crank space 3 and 6 is provided with a 35 'crank case 35, and the motor case 12 and the motor case 12 are opposed to the crank case 35. The inside of the bottom forms the crank space 3 6 of the crank case motor housing top (motor housing joint. # # 存 用 用以 lubricating the power conversion section 3 4 of the

Description of the invention (12) The oil 248 of the sliding part and the like is stored in a transparent material, such as glass, at the bottom side, and can be formed in the crank case 355. The window 50 is formed to ensure that the bottom side of the motor housing top 19 can flow through the motor chamber 13 and the crank empty door into an oil passage hole 20, so that the oil can also be used to make the motor chamber 13 also 6 between. The energy of the ambient gas with the crank space 36: = 2 to 48, and the motor chamber 13 is placed in the double Stirling freezer 3. The curved body 240 of the part 33A is connected, and the crank case M of both sides = 33 is connected by connecting the crank shaft 37. The \ k # 4! The crank shaft 37 of the heat generating section 3 ^ and the crank shaft 37 of the second cold-heat generating section 2 can be integrally formed as shown in FIG. 4, < no, it is connected by the coupling body 241 Yes. An oil passage pipe 242 is provided to allow oil 248 stored in the bottom of the crank case 35 of the first cold and heat generating portion 33A and the bottom of the crank case 35 of the second cold and heat generating portion 33B to communicate with each other. The motor shaft 17 and the crank shaft 37 are rotatably supported by a bearing 21. The motor housing 12 and the crank housing 35 are sealed by covers, respectively. The motor housing 12, the crank housing 35, and the motor housing top 19 are made of a cast. Therefore, the motor case 12, the crank case 35, and the motor case top 19 can be cast into a single body, which can reduce the advantage of manufacturing costs. When the operating gas is a gas other than the atmosphere such as helium, hydrogen, or nitrogen, it is preferable that the operating gas is sealed in a crank space, a motor room, and a buffer tank described later.

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The purpose is to prevent the crank space, motor and the small space in the buffer tank caused by the long-term operation from invading the compression space or the expansion space, so as to reduce the cold Cambodian efficiency. And because the gas flow path 75 and the back pressure chamber 154 are through the communication hole 109, the crank workshop 36 is provided with a crank shaft 37 connected to the motor shaft 7; it is recognized on the crank shaft 37 A compression crank 38a composed of a compression crank 38a and an expansion crank 38b; a connection rod 41 composed of a compression connecting rod 41 & and an expansion connection rod 41b connected to the crank 38 at one end; and a connection rod 41 connected to the other end of the connection rod 41 The cross guide 44 formed by the compression cross fork guide 44a and the expansion cross guide 44b; the compression cross guide 47a and the expansion cross guide 47b used to limit the movement direction of the cross guide to a linear direction The guide bush 47 and the like are constituted. The compression crank 38a and the expansion crank 38b are eccentric with respect to the axis of the crank shaft 37 and a is set, and the expansion crank 38b is advanced by about 90 compared to the pressure crank 38b when rotated in the positive direction of the motor η. The rotation direction of the motor 14 is set in the positive direction. The rotation of the motor 14 in the positive direction refers to the rotation direction of the motor 14 during the cycle operation of generating cold and heat. At this time, in the single Stirling refrigerator 2, in order to suppress expansion due to its Phase difference between crank 38b and compression crank 38a The resulting unbalanced rotation is provided with a balancer 51 on the bearing 2 1 side of the rotating shaft 17. On the other hand, in the double Stirling refrigerator 3, the first cold and heat generating unit 33A and the second Each phase of the expansion crank 38b and the compression crank 38a of the cold and heat generating portion 33B is shifted by 180 degrees, and the balance is adjusted.

521121 V. Description of the invention (14) Therefore, no balancer 51 is provided. The cross guide bushing 41 is formed by drilling the top of the crank case 35, etc., and is a substantially cylindrical hole in which the cross guide head 4 4 is inserted. With the above configuration, the cross guide 44 driven by the crank 38 is guided by the cross guide bush 47 to reciprocate. The above-mentioned structure is accommodated in the cylinder case 74 which is divided into the upper cylinder case 74a and the lower cylinder case 74b. The lower cylinder case 74b is fixed to the crank case 35 with bolts via a fixing plate 24 3, and the upper cylinder case 74a is fixed to the lower cylinder case 74b with bolts. The compression section 64 is provided with: a compression steam formed by opening the lower cylinder housing 74b; a compression piston 6 7 that reciprocates within the compression cylinder 6 8; The head 44 a, the other end is a compression piston rod 6 9 which is fixed to the compression and reduction piston 6 7, and the compression piston rod 6 9 which is connected to this; and is formed by the head side of the # ® reduction piston 6 7 and the compression cylinder 6 8 Compression space 66 〇 Compression piston ring 70 is installed on the side cylinder surface of compression piston 67 to maintain the confidentiality of compression space 66. The expansion portion 90 is provided with: an expansion cylinder 97 formed by opening the lower cylinder housing 74b and the upper cylinder housing 74 &openings; the interior is an air-conditioning expansion piston 93 that reciprocates in the expansion cylinder 97;-the end is The expansion piston 44b is freely mounted on the expansion crosshead 44b, and the other end is fixed to the expansion piston 93, and the expansion piston rod 100 is connected to this i '; and the expansion piston 9 35 is connected to the expansion side The expansion space 9 2 formed by the cylinder 9 7;

521121 V. Description of Invention (15) A cold head portion 219 is formed on the outer periphery of the interval 92. In order to prevent the heating in the compression space 66 from being heated by compression, the prepared heat is transmitted to the expansion space 9 2 through the expansion cylinder 97, and the bottom dead center position of the expansion piston 9 3 is formed more than the compression piston. 6 7 The top dead point & set to the upper side. The expansion cylinder 97 and the expansion piston 93 are divided up and down into an upper expansion cylinder 97a, a lower expansion cylinder 97b, an upper expansion piston 93a, and a lower expansion piston 93b, respectively. When the lower expansion cylinder 97b is mounted on the lower cylinder casing 74b, the lower expansion cylinder 97b is cooled with liquid nitrogen or the like, and is press-fitted by a cold method or the like to be installed. This prevents problems such as abnormal sounds caused by the lower expansion cylinder 97b being completely fixed to the lower cylinder case 74b. Of course, it can also be mounted through a zero ring (not shown) as another mounting mechanism for mounting the lower expansion cylinder 97b on the lower cylinder housing 74b. The lower expansion piston 9 3 b is provided with an expansion piston ring 104 to maintain the confidentiality of the expansion space 92. Further, piston coupling screw grooves 08 and 8 are formed at the upper end portion of the lower expansion piston 93b and the lower end portion of the upper expansion piston 93a, respectively, and an integrated expansion piston 93 is formed by screwing these together. Although the material of the lower cylinder housing 74b is made of Fc material, FCD material, etc., from the viewpoints of leakage prevention of the operating gas, manufacturing cost and component cost, sliding friction characteristics of the compression piston ring 70 and the expansion piston ring 104, etc. It is best to use FC3 0 0.

313504.ptd Page 22 521121 Fifth, the invention is fine (16) '-again, the material of the lower expansion cylinder 97b is generally made of steel, which is easy to manufacture and improves the sliding friction characteristics of the expansion piston ring 104. From the point of view, the use of The SUS material is suitable. It is best to use the surface thickness of the cylinder surface of the SUS303, sus304, expansion cylinder 97, or compression cylinder 68. In the past, it was about Rz5.0 microns on the lathe processing level. Rz3. 0 microns or less, preferably Rzi. 0 microns or less. With the above configuration, the degree of friction progress of the compression piston ring 70 or the expansion piston ring 104 can be significantly reduced. In the upper cylinder case 74a and the lower cylinder case 74b, gas flow paths 1 to 5 are formed, each of which has a thin tube communicating the expansion space 92 and the compression space 66. Furthermore, an annular groove 108 'is formed so as to surround the lower end portion of the lower expansion piston 93b, and a gas flow path 175 is connected to the annular groove 108 to open the compression space 66. The annular groove 108 is formed with a communication hole 109 with a small diameter communicating with the back pressure chamber 154, so that the pressure of the back pressure chamber 154 and the annular groove 108 is equalized. The 5 ^^ square and side ^ cylinder housing 74 & lower end portion communicates with the gas flow path Λ t / + to form a cylindrical heat storage material storage groove 丨 〇5, and a heat storage material 176 described later is inserted . Arrival shape ί The top of the teaching material storage tank 10 5 is formed with a recessed upward facing opposite side = dead end 押 pressing part 106, and a storage tank housing in the shape of the heat storage material storage tank. 7 讪 The upper end part is formed with a lower part of the animal heat material pressing part 107 which is recessed downward. A ring is inserted into the inner surface side of the upper end of the lower cylinder housing 74b, and the upper expansion cylinder 97 & and the lower expansion cylinder 97b are connected in a sealed manner.

521121 V. Description of the invention (17) The animal heat section 174 is provided with a cylindrical storage material formed of a common sheet and a mesh-shaped metal layer as a material, and is installed in the storage material storage tank f. The heat storage material 176 forms the majority accumulated in the expansion space 92 when the warm sound of the squadron 66 flows, the action gas = heat = the action gas flows toward the compression space compression space 66 to the expansion space 9 pan =, and the warm heat is used to remove . 仏 两 ^ # 之间 2 的 Cooling gas.

When the compression space 66 is compressed and the temperature of the compression space 66 flows to the expansion space 92, the rising operating gas is stored, and the warmth is used to heat the warm storage gas flowing from the expansion space 92. The movable heat storage material 1 6 6 to the compact two 6 6 is a laminated metal sheet. The camper teaches 1 7 β 13 the soldier E? 1 U. This action gas is called by animal heat = 7, and the metal sheet #beats on the sheet. As a result, friction is generated between the two sides. Therefore, as described above, the present invention forms the pressing part 106 of the upper end of the heat storage material and the pressing part 107 of the lower end of the heat storage material, and stacks them in the heat storage material storage tank. Λ ^ ^ ^ ^ Fix the day guard, and press the heat storage material 176 by pressing the upper part 106 of the heat storage material and the bottom pressing part 107 of the animal heat material. At this time, the cross-sectional shapes of the upper end pressing part 106 and the lower end pressing part 107 of the heat storage material are triangular. Therefore, the operating gas flowing into the storage material 176 is uniformly diffused and passes through the heat storage material 176. Can effectively store heat. t ^ Also, the heat storage material storage tank 105 is configured to be gradually narrowed and smoothly connected to the gas flow path 175, and therefore flows into the gas from the heat storage material storage tank 105.

521121

V. Description of the invention (18) = L7i, t movement: small force, which increases between the compression space 66 and the expansion space. Therefore, the freezing efficiency can be improved. / The laminated heat storage material 176 can be protected by the shape retaining member. Once the shape retaining member reduces the heat storage effect, it is less desirable. Save on compression piston rod 69 and expansion piston rod] 〇〇 The lower end is provided with a cross flange flange (flangeMOl, on its upper end is provided with a piston mounting bolt 102, and near the upper end is provided with a piston-side flange 1 Q 3. The compression piston rod 69 and the expansion piston rod 100 are attached to the crosshead 44 using the cross guide side flanges 101. The piston mounting bolts 102 are inserted into the compression piston 6 7 And the expansion piston 93 ′ abut the piston-side flange 103 and bolted with a nut to connect the compression piston rod 69 and the expansion piston rod 100. The expansion piston 93 and the expansion piston rod are connected. At 10:00, a spacer (Spacer) i53 is used in order to adjust the connection position of the bulging piston 93. The function will be described later. The heat radiating section 1 93 raises the temperature to compress the compressed section 64. Installed for the main purpose of rapidly releasing the heat of the operating gas, as shown in Fig. 8 and Fig. 9, a cooling water path formed around the circulation compression space 66 and the expansion cylinder 97, 94, is formed. In the lower cylinder housing 74b, and in the lower expansion cylinder 9 7 An end portion of a radiator with fins 195. FIG. 8 shows an enlarged schematic view of the heat radiating portion 193 of the second field in FIG. 2, FIG. 9 represents an arrow shown in FIG. 7 of the first cross-sectional view.

313504.ptd page 25 521121 V. Description of the invention (20) A heat exchanger that is placed in a heat exchange chamber to cool the working gas). The cooling water used for mounting the above-mentioned heat dissipating portion 193 is a cooling water circuit 202 shown in the schematic configuration diagrams of Fig. 5 and Figs. 14 to 19 described later, etc., by a circulation pump i 98. Then, by using a dispersing heat exchanger 丨 96 provided in the cooling water passage 202, the outside air supplied by the fan 197 is heat-exchanged and cooled. The double Stirling refrigerator 3 is provided with two heat radiating sections 193 of the first cold and heat generating section 33A and the second cold and heat generating section 33B. At this time, as shown in Figs. 5, 14 to 17, and 19, although a cooling water path 202 may be provided corresponding to each heat radiating portion 193, a cooling water path 202 may be pinged as shown in Fig. 18. ^ When the cooling water channel 202 is shared, the two heat-dissipating sections 193 of the first cold-heat generating section 33A and the second cold-heat generating section 33B that are shared are connected in parallel or in series', but for the above reasons, parallel connection is preferred. In the Stirling refrigerator 1 of the present invention, when the crank 38 rotates, the oil 24 8 stored in the bottom of the crank space 36 is picked up and attached to the sliding portion of the crank 38 and the connecting rod 41, or it is transferred. The sliding portion of the guide 44 and the guide bush 47 are lubricated. At this time, by the reciprocating motion of the crosshead 44, the oil 2 4 8 of the sliding part of the crosshead and the cross guide bush 4 7 is fed into the compression piston 6 7 or the expansion piston 9 3 side. It accumulates on the head side of the crosshead 44 (the side of the compression and live-flat piston 93). Soil extraction glue Because the cross guide 44 reciprocates at a very fast cycle, the accumulated oil 2 4 8 will splash and adhere to the compression piston 6 7 or the expansion piston 9 3, &

313504.ptd

521121 V. Description of the invention (21) '~~-Then, the reciprocating motion of the shrinkage piston 67 or the expansion piston 93 is used to send the oil 248 into the compression space or the expansion space 92 ′, resulting in a reduction in the refrigeration efficiency. ▲ Also, the amount of oil 248 accumulated on the head side of the crosshead 44 is affected by the differential pressure between the head and the bottom of the crosshead 44. At this time, the amount of the accumulated one is also larger, so, There will be more production in the field = ^^ into the compression space 66 or the expansion space 92. The 7th place < Temple 36 has increased in temperature due to the long-term operation of the Stirling Freezer 1, and the temperature rises, and the pressure in the crank space 36 also rises. ® Α ί ϋ, the oil 248 invades the main part of the compression space 66 and the expansion space 92; f because of the differential pressure between the main handle space 36 by the reciprocating motion of the crosshead 44 and the like. Lean & to 154 and song y I, and when the ring 4 wears down VVV ", the above phenomenon is the use of oil ring seal mechanism of ring 0, then ring and other maintenance work. The problem is more significant, so it needs to be replaced frequently. The date, month and month are replaced. The compression piston 6 7 makes the oil 2 48 sent by the parent fork guide 44 not attached to the oil seal 148. The piston 93 is provided with an oil seal. The capsule is mainly made of rubber. Of course, I β can be used. The above oil-sealed capsule is used. As shown in FIG. 17, the freezer 3 is used, and the 0-ring oil seal 162 made of silver or resin is used to form a double Stirling. See the large cold supply capacity], type and cost reduction, and provide a cold and hot for the 10th (a) Tusbentelin refrigerator 3. ..., Figure 10 (b), a partially enlarged side view showing a portion of the oil seal 148, showing a partially enlarged view of the figure 10 (a, = f1〇 (a), and figure 10 (C) is also Enlarged part of the picture. #

521121 V. Description of the invention (22) The above oil seal portion 148 is provided with: 149 oil seal films each provided between the fixed plate 243 and the compression piston 67. Tongue plug 93 V ^ ^ ^ m, can be a pot plate i4y, and an oil seal is welded A washer-shaped upper mounting ring 501 of the capsule 149, and a washer-shaped lower mounting ring 151 at the lower end of the oil seal film 149 welded. The above-mentioned oil-sealed film box 149 is a metal-shaped film box in which metal materials are integrally formed by press processing or a junction box assembled by welding. The upper mounting ring 150 is installed between the bottom of the compression piston rod 69 or the expansion piston rod 100 and the piston-side flange 103, and is fixed by the piston mounting bolt 102. At this time, on the surface of the piston-side flange i 〇3 to which the upper mounting ring i 5 〇 abuts, an upper mounting ring 〇 ring mounting ring side 〇 ring 157 〇 is formed on the surface of the piston-side flange i 〇 3, and a lower mounting ring 15 1 A lower mounting ring convex portion 159 is formed on the side surface of the lower end, and a lower mounting ring 0 ring groove 158 is formed on the lower mounting ring convex portion 159. On the other hand, on the inner peripheral surface of the piston rod hole 246 formed by the fixing plate 243, a fixing plate notch 247 corresponding to the size of the lower mounting ring convex portion 159 is formed. Then, the 0 ring is mounted on the lower mounting ring 0 ring. In the groove 58, the lower mounting ring convex portion 159 is fitted into the fixing plate cutout 247, and in this state, the fixing plate 243 is placed on the crank case 35 and the lower cylinder case 74 b is fixed. Thereby, the lower mounting ring 151 is closely contacted with the fixing plate 243 and is mounted. Therefore, the upper mounting ring 150 and the piston-side flange 103 are installed in

313504.ptd Page 29 521121 V. Description of the invention (23) The upper ring is fitted with the 0 ring of the 0 ring groove 157 and is tightly connected. The lower mounting ring 151 and the fixing plate 243 are tightly connected to each other by a 0-ring groove 1 58 of the lower mounting ring. ~ By this, the back pressure chamber 1 5 4 is sealed, and the problem that the oil 2 4 8 enters the compression space 66 or the expansion space 92 from the crank space 36 can be completely prevented. Of course, the installation structure of the oil-sealed film box 149 of the present invention is not limited to the above-mentioned structure. For example, the installation structures of Figs. 11 and 12 may be adopted. The installation structure of the oil seal diaphragm box 149 shown in FIG. 11 is provided with an upper mounting ring side gasket 160 between the upper mounting ring 150 and the piston side flange 103, and a lower mounting ring 151 and a fixing plate 243 A lower mounting ring side gasket 1 6 1 is provided between them to ensure its tightness. As for the upper mounting ring side gasket 160 and the lower mounting ring side gasket, metal or resin gaskets can be used. The installation structure of the oil-sealed diaphragm box i49 shown in FIG. 12 is used for the tightness between the upper mounting ring 150 and the piston-side flange i 03. The upper mounting ring 15 is made of resin, and the lower part The mounting bracket 1 or the plate 2 4 3 is directly welded. B 1 and fixed in any of the above states, the upper mounting ring i 5 〇 and the movable 103, the lower mounting ring 151 and the fixing plate 243 are respectively tight. Since the chamber 154 is in a sealed state, it can completely prevent the oil 248 from entering the compression space 66 or the expansion space 9 2. The C space 3 6 is boiled to 1 5 4 and is formed on the back of the compression piston 6 7 The back pressure side of the piston 93 is formed with a back pressure chamber communication hole 155 so that the expansion pressure sides communicate with each other. 乂 The above two backs 521121

Description of the invention (24) f ^ ^ ^ ^ ^ ^ 33A ^ ^ ^ ^ ^ Months L to 154 are communicated through a back pressure chamber communication pipe 156. It will be described later that the heat path of the operating gas acting on the second cylinder = / = the back pressure chamber communication hole 1 55 and the back pressure chamber communication pipe 1 56 is formed by expansion at the bottom dead center position & The top dead center position of the piston 67 is different from the bottom position of the compression piston 67 and the bottom position of the compression piston 67], so it is inflated 100 000 ^ ^ ^ 93 ^ ^ ^ S 150, < 153 to adjust the height of the expansion piston 93. Sigh, of course, the length of the oil-sealed membrane box 149 can also be adjusted according to the change in the 90% side of the pressure expansion portion, but in this case, there are the following doors ^ question 64 side and stress; Π axis: Π; bulging: for plug There is almost no axial stress in the rod 100 and the compression piston. Therefore, it is damaged due to the cycle stress. The L oil-sealed membrane box 149 is mainly based on the shear stress, so it is easy to occur due to the periodic stress. Caused by metal fatigue. For the reasons mentioned above, the life of the oil seal capsule 14 9 or the compression piston rod 69 is short, and the number of times of maintenance and repair is 100 times for the piston rod or 69 for the compression piston rod. / Expansion. Therefore, if the compression section 64 side and the expansion section 90 side are used = the film box 149, the storage of the parts becomes troublesome and easy to occur.

M

313504.ptd Page 31 mm 521121 V. Description of the invention (25) Therefore, the present invention uses the same specifications for the membrane box 149 of the expansion section 90 and the compression section 60, and uses the Z2 == plug 93 height. w Withering expansion However, the volume on the 36 side of the crank space is much larger than the back pressure volume. The space between the two sides is because the space between the crank space 36 and the motor chamber 13 is on the side of the chamber 36 is the sum of the crank space 36 and the motor 13 ^ In the state of the above-mentioned volume relationship, when the crankwork is in the back pressure chamber i 5 4 When it is dense, a large pressure fluctuation will occur due to the expansion piston 93 and the compression piston 67 heading to the chamber 154, and the differential pressure will be large. A supporting knob is generated between the crank space 36 and the pressure seal 154 when the pressure in the back pressure chamber 154 is higher than the pressure in the crank space 36. The reverse pressure chamber 154 is equal to the crank space. When the pressure of 36 is low, the oil-sealed membrane box 149 swells into the shape of a beer barrel. The above deformation occurs repeatedly so that the oil-sealed membrane box 149 is easily damaged. Since the pressure variation from # 压 至 154 is used as the resistance of the reciprocating movement of the expansion piston 93 or the compression piston 67, the load of the motor will increase to reduce the refrigeration efficiency. Therefore, the present invention is provided with a back pressure chamber communication Holes 1 55 are formed to communicate with the back pressure chambers 15 4 formed on the back pressure side of the compression piston 67 and the back pressure side of the expansion piston 93, respectively. The compression piston 67 and the expansion piston 93 reciprocate to maintain a predetermined phase difference. , So its back pressure side pressure also maintains a predetermined phase difference, and

521121 V. Description of the invention (26)-one-one 'one'-changes. Therefore, since the back pressure side of the compression piston 67 and the back pressure side of the expansion piston 93 are communicated with each other through the back pressure chamber communication hole 155, the pressure movement is absorbed by each other. In the double Stirling refrigerator 3, the back pressure chamber 154 of the first cold and heat generating unit 33A and the second cold and heat generating unit 33B are communicated with each other through the back pressure chamber communication cylinder 156. Since the compression piston 67 and the expansion piston 93 of the first cold and heat generating portion 33A and the second cold and heat generating portion 33B reciprocate with a phase difference of i 800 degrees, the first cold and heat generating portion 33A and the second cold and heat generating portion 33A are reciprocated. The back pressure chamber 154 of the cold and heat generating portion 3 is communicated with each other, and can completely absorb the pressure fluctuation. However, even with the above-mentioned configuration, the space volume of the back pressure side of the compression piston 67 and the back pressure side of the expansion piston 93 are different, and the flow resistance of the ambient gas filling the back pressure chamber 154 cannot be completely eliminated. Absorb its pressure changes. Therefore, the present invention is provided with a pressure adjusting section 125 having a buffer groove 126 in order to more completely absorb pressure fluctuations. The buffer groove 126 of the pressure adjustment part 125 is provided with a pressure adjustment capsule 丨 2 7 which seals the space in the groove into two spaces in a sealed manner. One space passes through the back pressure side communication pipe 1 2 8 and the back pressure chamber 1 5 4 communicate with each other, and the other space communicates with the crank space 36 and the motor chamber 13 through the crank-side communication pipe 1 30. A space communicating with the back pressure chamber 1 54 is called a back pressure side buffer chamber 1 2 9, and a space communicating with the crank space 36 is called a crank side buffer chamber 1 3 1. Also, at least the back-pressure side buffer chamber 1 2 9 has a larger space volume than the back-pressure chamber 1 5 4

313504.ptd Page 33 521121 V. Description of the invention (27) The volume of space is much larger. The pressure-adjusting capsule 127 can also be made of a metal molded capsule or a metal welded capsule in the same way as the oil-sealed capsule 149. However, since the amount of expansion and contraction is not as large as that of the oil-sealed capsule 149, a resin or rubber capsule can also be used. . With the above configuration, the pressure fluctuation of the back pressure chamber 154 is automatically mitigated by the pressure fluctuation of the back pressure side buffer chamber 129, and is absorbed by the expansion and contraction of the pressure adjustment diaphragm 127. Since a large differential pressure does not occur between the crank spaces 36, it is possible to prevent the deterioration and destruction of the oil-tight capsule 1 4 9 'to improve the running performance and durability of the Stirling refrigerator 1. Since the motor chamber 1 3 communicates with the crank space 36, the same effect can be obtained by connecting the crank-side buffer chamber 1 31 with the motor chamber 丨 3. In the double Stirling refrigerator 3, since the first cold and heat generating section 33A and the second cold and heat generating section 33B have a phase difference of 180 degrees, the pressure fluctuations of the back pressure chambers 154 and the crank space 36 will cancel each other out. Therefore, one buffer groove 126 may be used as shown in FIGS. 4 and 5. Of course, as shown in FIGS. 14 and 15, two buffer grooves 1 2 6 are used to form a port. As described above, the gas flow path 175 is formed so as to surround the lower end of the lower expansion piston 93b. The connected annular groove 108 is communicated with the annular groove 108 and the back pressure chamber 154 by using the communication hole 1009 with a small diameter. Therefore, the annular groove 108 is in communication with the compression space 66 and the expansion space 92. Therefore, by forming the communication hole 10, the operating gas flows into the back pressure chamber 15 4 'and the back pressure chamber } 5 4 of the ambient gas flows into the compression space 6 6 and the expansion space 92 〇

Page 34 521121 V. Description of the invention (28) Again, it is best to act as described above—chamber 13, buffer tank 126, back pressure chamber ^ air = full crank space > room 36, motor communication hole 109, etc. The connection of the surrounding gas is due to the reason that the gas other than the operating gas is prevented from entering the compression space 66 and the expansion space 92 and the communication hole 109 is provided. The pressure becomes equal pressure. In order to make the back pressure chamber 154 and the annular groove 108, that is, when a large differential pressure is generated in the compression space 66 or the pressure of the expansion, the load of the motor 14 will increase. The load that generates t and also contains the compression or expansion of the ambient gas in the back pressure chamber 154 is originally not a load, which will reduce the refrigeration efficiency. The load required for the back pressure = this setting The communication hole 109 is used to reduce the back pressure chamber 154 and the annular groove 08 L, and reduce the load required for the compression or expansion of the ambient gas in the back pressure chamber i 54. Of course, the back pressure chamber 154 and the annular groove If there is an action gas between 108 ^ 'Because the action gas compressed or expanded in the compression space 66 or the expansion space 92 will also flow out to the back pressure chamber 154, which causes the main cause of the reduction in cold-chamber efficiency. — Therefore, the present invention In order to take into account the above-mentioned decrease in the efficiency of the cold bed and the decrease in the cold-efficiency caused by the load required to compress or expand the ambient gas in the back pressure chamber 154, the diameter of the communication hole 109 is set to be as small as 0-5 mm, for example. diameter.

313504.ptd Page 35 521121 V. Description of the invention (29) A'- ^ # 219 is a jacket 221 provided by cooling the heat sink 220 and including the other end portion of the cooling heat sink 220 In this configuration, a brine flow path 222 is formed between the cooling fins 220 and the casing 221. As the saline, ethyl alcohol, HFE, PFC, PFG, nitrogen, nitrogen, etc. can be used. Therefore, the cold water generated by the expansion space 92 is cooled by the cooling fins 220 and the cold heat is supplied to the cold and heat utilization equipment. It is not necessary to cool the heat sink 22 when using the generated heat and heat through direct thermal contact. ... Next, the operation of the Stirling refrigerator 1 configured as described above will be described. When the motor 14 is driven, its rotational power is transmitted to the crank shaft 37 via the motor shaft 17. The crank 38 is installed eccentrically to the crank shaft 37, and the cross guide 44 is connected to the crank 38 by a connecting rod 41. Therefore, the rotational power is converted into the reciprocating power of the cross guide 44. When the cross guide 44 is reciprocated, the expansion piston 9 3 and the compression piston 67 connected by the piston rod reciprocate to compress and expand the operating gas. 'At this time', the oil 248 is attached to the crosshead by the crank 38, etc., but the crank space and the back pressure chamber 1 5 4 are completely separated by the oil seal capsule 1 4 9. Also, the 'back pressure chamber 154 and The differential pressure of the expansion space 92 is adjusted by the buffer groove 26, and the differential pressure generated between them is suppressed. However, at this time, the pressure adjustment diaphragm 127 is used to separate the buffer groove 126, so the oil 248 does not pass from the crank. The spaces 36 and the like flow into the back pressure chamber 1 5 4 through the buffer grooves 1 2 6.

313504.ptd Page 36 521121 V. Description of the invention (30) Expansion! The oil 241 does not enter the back pressure chamber 154 and enters the compression space 66 or the workshop 92, and prevents a decrease in the freezing efficiency. Second, the buffer tank 126 can suppress the reduction of the back pressure chamber 154 and the expansion space M., Therefore, as described above, the load of the motor 14 can be reduced, and the freezing efficiency can be suppressed. When the expansion piston 9 3 and the compression piston 6 7 are reciprocated, as described above.

When the expansion piston 93 moves slower near the top dead center, the vicinity of the W piston of the compression piston moves rapidly toward the top dead center, whereby the operating gas is compressed by the barrier and the temperature rises. .... The operating gas system of the Levin compression circulates in the gas flow path 1 75 and flows into the heat radiation part 193, where it is radiated by the radiator 195 into cooling water to cool down. … = However, the water system is circulated in the cooling water path 202 by the circulation pump 198, and is cooled by heat exchange with the outside air in the diffusive heat exchanger 196. When the operating gas that has been radiated into the cooling water flows into the heat storage unit 174 and passes through the heat storage material 176 ', warm heat is stored in the heat storage material 176 and then flows into the expansion space 92. Moreover, the 'compression piston 67' approaches the top dead center, and its speed becomes slower. The t expansion piston 93 is rapidly moved downward to the dead point, so the expansion space 92 is rapidly expanded, and the operating gas in the expansion space 92 is expanded by heat insulation to reduce the temperature. Thereby, the temperature of the cold head 219 is lowered, the brine is cooled by cooling the fins 22o, and cold heat is supplied to the cold and heat utilization equipment. In the twin-stirling refrigerator 3, when cold and heat are supplied to the cold heading utilization equipment, as shown in FIG. 4 *, brine can be circulated to the cold and heat generating machine generator unit 33A and the second cold and heat generating unit 33B. Two cold heads 219, as shown in Figure 13

313504.ptd Page 37 521121 V. Description of the invention (31) shows that it can be circulated in parallel. ΓΓΛFigure J3 ', arrows indicate the direction of flow of saline water. Cooling device: i%: machines such as freezer, refrigerator, input type cold piano: constant temperature; 2, 2: low temperature constant temperature for various temperature characteristics test box, solitary tank thermal shock test device, freeze dry welding machine, &#Expansion piston 93 from bottom dead point to Bu # 点 | The corpse neutral 詈 Α ΠΓ has been moved, and the compression piston 67 will be two free 5! 7 The dead point moves, so that the operating gas flows from the expansion space 92 to the compression space 6 7 from the chaotic body grasping the path 1 75, and the operating gas system whose temperature decreases will store cold and heat in The heat storage material 1 76 flows into the compression space 66 via the heat sink i 93 to complete a cycle 0. However, the cold head 2 1 9 may be frosted or frozen due to cold and heat. As described above, when the cold and heat is supplied to the hot and cold utilization equipment using salt water, although the problem of frost or icing occurs, when the cold head 2 and 9 are in contact with the cold and hot structure, the frost or ice will be blocked. The transmission of cold and heat. In the above case, it is preferable to reverse the rotation direction of the motor 14 appropriately and compress the operating gas by using the expansion space 92 to perform the defrosting operation to melt the frost or ice attached to the cold head 219. In the above description, in order to reduce the pressure difference between the back pressure chamber 154 and the crank space 36, the back pressure side communication pipe and the crank 38 side communication pipe are used to connect the back pressure chamber 154 and the crank space 36. At this time, it is necessary to prevent the oil 248 from flowing into the back pressure chamber 1 5 4 from the crank space 36 through the back pressure side communication pipe and the crank 38 side communication pipe.

313504.ptd Page 38 521121 V. Description of the invention (32) There is a buffer groove 126 of the pressure regulating diaphragm 127. However, since the volume of the crank space 36 is much larger than the volume of the back pressure chamber 154, the crank space 36 can also be used as a buffer space. Fig. 19 shows a proposal constructed in accordance with the above concept. The structure shown in Fig. 19 is such that an oil filter 2 4 9 is provided between the back pressure side communication pipe and the crank 3 8 side communication pipe. Thereby, the operating gas can flow between the back pressure chamber 1 5 4 and the crank space 3 6 and can relax the differential pressure, and at the same time prevent the oil 2 4 8 from entering the back pressure chamber 154 ° [industrial use possibility] As described above, since the Stirling refrigerator of the present invention uses one driving device to drive two cold and heat generating sections, it can efficiently generate cold and heat, and can completely prevent oil from entering the compression section or the expansion section, and Two cold and heat generating sections formed to reduce the differential pressure between the back pressure chamber and the crank space are connected. Two cold and heat generating sections are driven by one drive device, so it can provide a miniaturization and high efficiency of cold and heat generation Stirling freezer.

313504.ptd Page 39 521121 Brief description of drawings [Simplified description of drawings] Fig. 1 shows a side sectional view of the structure of a single Stirling refrigerator. Fig. 2 is a sectional view of a front part of a single Stirling refrigerator. Fig. 3 is a diagram illustrating the structure of a single Stirling refrigerator. Fig. 4 is a side cross-sectional view showing the structure of a double Stirling cold fan when brine (b r i n e) is circulated in series. Fig. 5 is an explanatory diagram showing the structure of a twin-stirling cold-adhering machine. Fig. 6 is a partially enlarged side cross-sectional view of the cold and heat generating portion. FIG. 7 is a partially enlarged side cross-sectional view of the cold and heat generating section. Fig. 8 is a partially enlarged front cross-sectional view of the cold and heat generating portion. FIG. 9 is a cross-sectional view of the arrow in FIG. 7. Figures 10 (a) to (c) are partial cross-sectional views showing the mounting structure of the oil-sealed membrane box. Figures 11 (a) to (c) are partial cross-sectional views showing the mounting structure of the oil-sealed membrane box. Figures 12 (a) to (c) are partial cross-sectional views showing the mounting structure of the oil-tight membrane box. Fig. 13 is a side cross-sectional view showing the structure of a double-Stirling cold-adhering machine when brine is circulated side by side. Fig. 14 is an explanatory diagram showing a configuration when two buffer grooves are connected to a crank space and a motor chamber. Fig. 15 is an explanatory diagram showing a configuration when two buffer grooves are connected to a crank space and a motor chamber. Fig. 16 is an explanatory diagram showing the structure of a double-stirling cold heading machine.

313504.ptd Page 40 521121 Brief description of the drawings Fig. 17 shows the structure of a double Stirling freezer when an oil seal such as 0 ring is used. Fig. 18 is an explanatory diagram showing the configuration of a double-stirling cooling machine when the cooling water passage is configured in common. Fig. 19 is an explanatory diagram showing the structure of a double Stirling refrigerator when an oil filter is used. Fig. 20 is an explanatory diagram showing the structure of a single Stirling refrigerator which is applied to the explanation of conventional technology. [Explanation of component symbols] 1, 5 0 1 Stirling refrigerator 3 Double Stirling refrigerator 12 Motor housing 14 > 514 Motor 16 Rotor 19 Motor housing top 3 3, 5 3 3 Cold and heat generating section 33B 2nd Cold and heat generating part 35, 635 crank case 37, 537 crank shaft 41 connecting rod 4 1 b expansion connecting rod 44b, 544b expansion cross guide 50 window 6 4, 5 6 4 compression section 2 single Stirling refrigerator 11 driving device 13 Motor chamber 15 Stator 1 7, 5 1 7 Motor shaft 21 > 521 bearing 33A 1st cold and heat generating section 34, 534 power conversion section 36 > 53 6 crank space 38, 538 crank 41 a compression connecting rod 44a, 544a compression Cross guide 47, 547 guide bush 51 balancer 6 6, 5 6 6 compression space

313504.ptd Page 41 521121 Illustration of simple illustration 67 ^ 567 compression piston 68 > 568 compression cylinder 69 compression piston rod 70 compression piston ring 74a upper cylinder housing 74b lower cylinder housing 90 > 590 expansion portion 92 ^ 592 Expansion space 93 > 593 Expansion piston 97 > 597 Expansion cylinder 100 ^ 600 Expansion piston rod 101 Cross guide flange 102 Piston mounting bolt 103 Piston side flange 104 Expansion piston ring 105 Thermal storage material receiving groove 106 Thermal storage material upper end Pressing part 107 Pressing part for the lower end of the heat storage material 108 Piston joint screw groove 109 Communication hole 125 Pressure adjustment part 126 Buffer tank 127 Pressure adjustment diaphragm 128 Back pressure side communication pipe 129 Back pressure side buffer chamber 130 Crank side communication pipe 148 Oil seal 149 Oil seal capsule 150 Upper mounting ring 151 Lower mounting ring 153 Gasket 154, 654 Back pressure chamber 155 Back pressure chamber communication hole 158 > 159 Ring projection; 160 Upper ring-side gasket 161 Lower ring-side gasket 174 > 674 Thermal storage 175 > 675 Gas flow path 176 Thermal storage material 193 Radiator 194 Cooling water path 195 > 695 Radiator 196 ^ 6 9 6 Heat exchanger 197 Fan 199 Cooling water flows into π 200 Cooling water flows out 201 Cooling water cover

313504.ptd Page 42 521121 Simple illustration of the drawing 2 0 2 Cooling water path 2 1 9 Cooling head 2 2 0 Cooling fins 221 Case 2 4 0 Connecting case 243 Fixing plate 2 4 6 Piston rod hole 248 > 748 Oil 24 7 Fixing plate notch 1 313504.ptd Page 43

Claims (1)

521121 pieces; Case No. 91105531 6. Scope of patent application 1. A Stirling equipment is equipped with a crank, and the expansion chamber is compressed in a compressed, tighter than cold, hot and cold drive. 2. If the application inserts the space from transmission to sliding, the crank back pressure chamber seal is used; the adjustment part is useful for placing two sets of moving cylinders to compress and shrink the two cylinders to patent the aforementioned aforesaid front sliding slide. The rowing chamber uses a refrigerator to produce the cold plug of the pre-forest freezer that rotates the aforementioned rotary reciprocating power as a gas expansion piston to reciprocate the piston. The cold and heat production of the pre-forest freezer drives the above-mentioned expansion force with rotational force to expand the thermal expansion. There is a quantitative, two of its special equipment / 3, the modified motor is driven by a linear expansion cylinder to expand the piston, and the equipment in the compression chamber is reciprocated, and the phase is reciprocated: connection, cold and heat generation equipment The crank of the Stirling freezer of the range item 1 receives the aforementioned reciprocating power, and compresses the piston and the piston rod of the piston and the expansion piston, and the crank housing of the oil at the bottom part thereof; the piston rod, and the crank Divided into two sealed chambers, the aforementioned compression piston and the expansion piston prevent the oil from entering the forward device from the aforementioned crank chamber; The reciprocating motion of the reciprocating power is used to make the gas move by the reciprocating power, and the gas is moved by the expansion motion to generate and place a set to generate the cold. 1 It is equipped with: the reciprocating power rod; Use the space on the inner side of the handle housing as the side space as the oil in the back pressure chamber to adjust the pressure of the differential pressure between the back pressure chamber and the crank chamber. ! m 313504.ptc page 1 2002.11.14. 045 521121 _ case number 91105531 _? / year // month / factory day correction_ VI. The scope of the patent application makes the crank shaft and motor shaft of the two aforementioned cold and heat generating devices connected A linear and connected rotating shaft connecting mechanism; a crank chamber connecting mechanism for connecting the crank chambers of the two aforementioned cold and heat generating devices to each other; and a back pressure for connecting the back pressure chambers of the two aforementioned cold and heat generating devices to each other Room communication mechanism. 3. The Stirling freezer according to item 2 of the patent application scope, wherein the back pressure chamber communication mechanism communicates the back pressure chamber on the compression piston side with the back pressure chamber on the expansion piston side. 4. For the Stirling freezer according to item 2 of the scope of patent application, wherein the pressure adjusting part is provided with a buffer tank which communicates with the crank chamber and the back pressure chamber to reduce the pressure difference between the back pressure chamber and the crank chamber, respectively. 5. For the Stirling freezer according to item 2 or 4 of the scope of the patent application, wherein the pressure adjustment section is provided with a telescopic expansion and contraction by the differential pressure between the back pressure chamber and the crank chamber to reduce the difference between the back pressure chamber and the crank chamber. The pressure adjusts the capsule. 6. The Stirling freezer according to item 2 or 4 of the scope of patent application, wherein one end of the oil seal is hermetically fixed to the crank case, and the other end is hermetically fixed to the piston rod, which is a kind of The crank chamber is sealed from the aforementioned back pressure chamber in a sealed manner, and an oil-sealed diaphragm box which expands and contracts with the movement of the piston rod. 7. The Stirling freezer according to item 2 or 4 of the scope of patent application, wherein: a gas flow path connecting the expansion chamber and the compression chamber is provided; and 313504.pic Page 2 2002.11.14.046 521121 _ Case No. 91105531_1 / year // month / 5 ^ Amendment_ VI. The scope of the patent application connects the gas flow path with the aforementioned back pressure chamber to reduce the aforementioned expansion chamber and compression chamber and The differential pressure communication hole of the back pressure chamber. 8. The Stirling freezer according to any one of claims 1 to 4, wherein a cylinder housing that forms the aforementioned compression cylinder and forms a cooling water path by winding the compression cylinder is provided at The cooling water paths of the two cylinder housings of the aforementioned cold and heat generating devices are connected in parallel or in series. 9. The Stirling refrigerator according to any one of claims 1 to 4, wherein the cylinder surfaces of the expansion cylinder and the compression cylinder are formed with a thickness of Rz 3.0 micrometers or less. 10. The Stirling refrigerator according to item 9 of the scope of patent application, wherein the aforementioned expansion cylinder is press-fitted into a cylinder casing and installed. 1 1. The Stirling freezer according to item 8 of the patent application range, wherein the aforementioned cylinder housing is formed using FC material or FCD material, and it is more desirable to use FC 300. 1 2. The Sterling refrigerator according to any one of claims 8 to 11 in the scope of patent application, wherein the expansion cylinder installed by being pressed into the cylinder housing is formed of steel, and it is preferable to use SUS. Materials, especially SUS30 3 or SUS304. 13. The Stirling freezer according to item 10 of the patent application range, wherein the aforementioned cylinder housing is formed using FC material or FCD material, and FC 300 is more preferably formed. 14. The Stirling refrigerator according to item 10 of the scope of patent application, wherein the expansion cylinder installed by being press-fitted into the cylinder housing is made of steel. 313504.ptc Page 3 2002. 11. 14.047 521121 _ Case No. 91105531_f / year // month / 5s__ VI. The scope of patent application is completed. It is best to use SUS material, especially SUS303 or SUS304. 313504.ptc page 4 2002.11.14.048 521121 313504 Jia (month and day Figure 12 (Revised) 15/23