JP2003336920A - Pulse tube refrigerator, energizing system using the pulse tube refrigerator, and method of using the pulse tube refrigerator - Google Patents
Pulse tube refrigerator, energizing system using the pulse tube refrigerator, and method of using the pulse tube refrigeratorInfo
- Publication number
- JP2003336920A JP2003336920A JP2002143303A JP2002143303A JP2003336920A JP 2003336920 A JP2003336920 A JP 2003336920A JP 2002143303 A JP2002143303 A JP 2002143303A JP 2002143303 A JP2002143303 A JP 2002143303A JP 2003336920 A JP2003336920 A JP 2003336920A
- Authority
- JP
- Japan
- Prior art keywords
- pulse tube
- tube refrigerator
- refrigerator
- energy storage
- receiving member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000004146 energy storage Methods 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1421—Pulse-tube cycles characterised by details not otherwise provided for
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1425—Pulse tubes with basic schematic including several pulse tubes
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/006—Thermal coupling structure or interface
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Superconductive Dynamoelectric Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、パルス管冷凍機、
パルス管冷凍機を用いた通電システム、およびパルス管
冷凍機の使用方法に関する。TECHNICAL FIELD The present invention relates to a pulse tube refrigerator,
The present invention relates to an energization system using a pulse tube refrigerator and a method of using the pulse tube refrigerator.
【０００２】[0002]
【背景技術】近年、電力需要の増大に対する対策が種々
検討されている。その中の一つに、電力消費の少ない夜
間時の電力を電力貯蔵設備に貯蔵しておき、電力消費が
著しく、供給がおぼつかなくなる日中に、その貯蔵した
電力を使用するという技術が知られている。電力貯蔵設
備は、超電導からなるエネルギ蓄積体の両端に銅製の電
流リードを接続し、一方の電流リードから他方の電流リ
ードに向けて大電流を通電させ、両電流リード間に接続
されたエネルギ蓄積体に電気エネルギを蓄積する構造で
ある。この際、エネルギ蓄積体は超電導であるために、
真空のチャンバー内で低温状態に冷却されているが、電
力貯蔵設備の外部まで引き出された電流リードは、ビル
等の建物内に配線されるために室温とされている。ま
た、エネルギ蓄積体における電流リードとの接続部分
は、室温とされた電流リードを介して熱影響を受けやす
いため、冷凍機によって積極的に冷却されており、接続
部分での熱影響を抑えてエネルギ蓄積体の蓄積効率を向
上させている。BACKGROUND ART In recent years, various measures for increasing the power demand have been studied. One of them is known as a technology that stores electric power at night with low power consumption in an electric power storage facility and uses the stored electric power during the day when the electric power consumption is remarkable and the supply becomes unclear. ing. Power storage equipment has copper current leads connected to both ends of an energy storage body made of superconductivity, and allows a large current to flow from one current lead to the other, leading to energy storage connected between both current leads. It is a structure that stores electrical energy in the body. At this time, since the energy storage body is superconducting,
Although it is cooled to a low temperature in a vacuum chamber, the current lead drawn to the outside of the electric power storage equipment is kept at room temperature because it is wired inside a building such as a building. Further, since the connection portion of the energy storage body with the current lead is easily affected by heat via the current lead at room temperature, it is actively cooled by the refrigerator, and the heat influence at the connection portion is suppressed. The energy storage efficiency is improved.
【０００３】[0003]
【発明が解決しようとする課題】ところで、電流リード
とエネルギ蓄積体との接続部分は大電流が通電されてい
るため、この接続部分と冷凍機とを確実に電気絶縁する
必要がある。しかしながら、冷凍機としてＧＭ（ギフォ
ード・マクマホン）サイクル冷凍機、あるいはスターリ
ングサイクル冷凍機を使用していた従来では、これらの
冷凍機に設けられた機械的可動機構や電気的制御機構ま
でも確実に絶縁する必要があり、絶縁構造が複雑になっ
て電力貯蔵設備が大型化するという問題があった。By the way, since a large current is applied to the connecting portion between the current lead and the energy storage body, it is necessary to ensure electrical insulation between this connecting portion and the refrigerator. However, in the conventional case where a GM (Gifford-McMahon) cycle refrigerator or a Stirling cycle refrigerator is used as a refrigerator, it is possible to reliably insulate even a mechanical moving mechanism and an electric control mechanism provided in these refrigerators. However, there is a problem in that the insulation structure becomes complicated and the power storage facility becomes large.
【０００４】また、電気絶縁に使用される絶縁部材は、
単に電気的に絶縁できればよいというのではなく、冷凍
機との熱交換を効率的に行うために、熱伝導性にも優れ
ている必要がある。しかし、絶縁部材を形成する材料は
一般的に、断熱部材として用いられるものが多く、冷凍
機との間を絶縁するのに適切ではない。従って、このこ
とが絶縁部材での熱損失となって接続部分を確実に冷却
できず、ひいては接続部分の熱影響を十分に抑えきれな
いという問題がある。The insulating member used for electrical insulation is
It is not only necessary to be electrically insulated, but it is also necessary to have excellent thermal conductivity in order to efficiently exchange heat with the refrigerator. However, many materials that form the insulating member are generally used as a heat insulating member, and are not suitable for insulating the refrigerator. Therefore, this causes a heat loss in the insulating member, so that the connecting portion cannot be cooled reliably, and further, there is a problem that the thermal influence of the connecting portion cannot be sufficiently suppressed.
【０００５】本発明の目的は、設備の小型化を促進で
き、かつ受熱部材との接続部分に良好に伝熱できるパル
ス管冷凍機、パルス管冷凍機を用いた通電システム、お
よびパルス管冷凍機の使用方法を提供することにある。An object of the present invention is to promote miniaturization of equipment and to transfer heat well to a connecting portion with a heat receiving member, a pulse tube refrigerator, an energization system using the pulse tube refrigerator, and a pulse tube refrigerator. It is to provide the usage method of.
【０００６】[0006]
【課題を解決するための手段】本発明の請求項１に係る
パルス管冷凍機は、両端で温度差のある一端側に受熱部
材が接続されるパルス管冷凍機であって、前記受熱部材
との間で通電可能に設けられていることを特徴とする。
ここで、パルス管冷凍機とは、受熱部材に低熱を伝達さ
せて冷却するものの他、高熱を伝達させて昇温（加熱）
するものも含む。A pulse tube refrigerator according to claim 1 of the present invention is a pulse tube refrigerator in which a heat receiving member is connected to one end side where there is a temperature difference at both ends, and the heat receiving member It is characterized in that it can be energized between the two.
Here, the pulse tube refrigerator has a function of transmitting low heat to the heat receiving member to cool it, and also transmitting high heat to raise the temperature (heating).
Including those that do.
【０００７】このようなパルス管冷凍機によれば、パル
ス管冷凍機自身に通電させるのであるが、このパルス管
冷凍機は、従来用いられていたＧＭサイクル冷凍機やス
ターリングサイクル冷凍機とは異なって機械的可動機構
および電気的制御機構を有しないうえ、パルス管冷凍機
そのものを電流リードとして機能させるので、パルス管
冷凍機と受熱部材とを何ら絶縁する必要がなく、絶縁構
造が大幅に簡素化され、小型化が促進される。また、パ
ルス管冷凍機と受熱部材とが直に接続されて通電可能に
設けられているから、従来の絶縁部材が不要になって熱
損失が殆ど生じない。このため、受熱部材とパルス管冷
凍機との接続部分が良好に冷却されたり、昇温される。
以上により、本発明の目的が達成される。According to such a pulse tube refrigerator, the pulse tube refrigerator itself is energized, but this pulse tube refrigerator is different from the GM cycle refrigerator and the Stirling cycle refrigerator which have been used conventionally. Since there is no mechanical moving mechanism and electrical control mechanism and the pulse tube refrigerator itself functions as a current lead, there is no need to insulate the pulse tube refrigerator from the heat receiving member, and the insulation structure is greatly simplified. And miniaturization is promoted. Further, since the pulse tube refrigerator and the heat receiving member are directly connected to each other so that they can be energized, the conventional insulating member is not necessary and heat loss hardly occurs. Therefore, the connecting portion between the heat receiving member and the pulse tube refrigerator is satisfactorily cooled or the temperature is raised.
From the above, the object of the present invention is achieved.
【０００８】本発明の請求項２に係るパルス管冷凍機
は、請求項１に記載のパルス管冷凍機であって、冷凍機
本体と、この冷凍機本体の前記両端を貫通するリード部
材とを含んで構成され、このリード部材の前記一端側か
ら突出した部分に前記被冷却部材が接続されていること
を特徴とする。このようなパルス管冷凍機においては、
リード部材を導電性に優れた材料で形成することによ
り、冷凍機本体側を導電性よりもむしろ、冷凍機として
の耐久性などを優先させた材料で形成可能であり、パル
ス管冷凍機全体としては、良好な通電性能を確保しつ
つ、冷凍機としての信頼性も確実に得られる。A pulse tube refrigerator according to a second aspect of the present invention is the pulse tube refrigerator according to the first aspect, which comprises a refrigerator body and lead members penetrating both ends of the refrigerator body. The member to be cooled is connected to a portion of the lead member protruding from the one end side. In such a pulse tube refrigerator,
By forming the lead member with a material with excellent conductivity, it is possible to form the refrigerator body side with a material that prioritizes durability as a refrigerator rather than conductivity, and as a whole pulse tube refrigerator Can reliably obtain the reliability as a refrigerator while ensuring good energizing performance.
【０００９】本発明の請求項３に係る通電システムは、
請求項１または請求項２に記載のパルス管冷凍機を備え
ていることを特徴とする。このような通電システムで
は、前述した請求項１のパルス管冷凍機を備えているこ
とにより、本発明の目的を達成できる。また、請求項２
のパルス管冷凍機を備えていることで、前記目的を達成
できるのに加え、請求項２で説明した作用効果を同様に
得ることができる。The power supply system according to claim 3 of the present invention is
The pulse tube refrigerator according to claim 1 or 2 is provided. Such an energization system can achieve the object of the present invention by including the pulse tube refrigerator of the first aspect described above. In addition, claim 2
By including the pulse tube refrigerator, the above-described object can be achieved, and in addition, the function and effect described in claim 2 can be obtained.
【００１０】本発明の請求項４に係る通電システムは、
請求項３に記載の通電システムにおいて、前記受熱部材
は、少なくとも一対のパルス管冷凍機間に接続され、一
方のパルス管冷凍機から前記受熱部材を通して他方のパ
ルス管冷凍機にかけて通電可能に設けられていることを
特徴とする。このような通電システムによれば、受熱部
材は、例えばその両側のパルス管冷凍機から受熱するた
め、冷却効率または昇温効率がより向上する。The power supply system according to claim 4 of the present invention is
4. The energization system according to claim 3, wherein the heat receiving member is connected between at least a pair of pulse tube refrigerators, and is provided so as to be able to conduct electricity from one pulse tube refrigerator to the other pulse tube refrigerator through the heat receiving member. It is characterized by According to such an energization system, the heat receiving member receives heat from, for example, the pulse tube refrigerators on both sides thereof, so that the cooling efficiency or the temperature raising efficiency is further improved.
【００１１】本発明の請求項５に係る通電システムは、
請求項３または請求項４のいずれかに記載の通電システ
ムにおいて、前記受熱部材が電気エネルギ蓄積体とされ
た電力貯蔵設備であることを特徴とする。このような通
電システムによれば、電力貯蔵設備の小型化が図れる。
また、電気エネルギ蓄積体への熱伝達が効率よく行える
から、例えば超電導からなる電気エネルギ蓄積体が良好
に冷却され、蓄積効率が格段に向上する。The power supply system according to claim 5 of the present invention is
The power supply system according to claim 3 or 4, wherein the heat receiving member is an electric power storage facility serving as an electric energy storage body. According to such an energization system, the power storage facility can be downsized.
Further, since heat can be efficiently transferred to the electric energy storage body, the electric energy storage body made of, for example, superconductivity is cooled well, and the storage efficiency is remarkably improved.
【００１２】本発明の請求項６に係るパルス管冷凍機の
使用方法は、パルス管冷凍機自身を通電可能な電流リー
ドとして用いることを特徴とする。このような使用方法
では、パルス管冷凍機に受熱部材を直接的に接続するこ
とで、本発明の目的が達成される。The method of using the pulse tube refrigerator according to claim 6 of the present invention is characterized in that the pulse tube refrigerator itself is used as a current lead capable of conducting electricity. In such a usage method, the object of the present invention is achieved by directly connecting the heat receiving member to the pulse tube refrigerator.
【００１３】[0013]
【発明の実施の形態】以下、本発明の一実施形態を図面
に基づいて説明する。図１は、本実施形態に係る電力貯
蔵設備（通電システム）１を示す全体図である。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view showing a power storage facility (energization system) 1 according to this embodiment.
【００１４】電力貯蔵設備１は、数ｋＡ〜十数ｋＡの直
流電流を通電可能に設けられた一対のパルス管冷凍機１
０（１０Ａ，１０Ｂ）と、これらのパルス管冷凍機１０
の低温側（図中の下側であって、本発明に係る一端側）
間に接続された超電導からなる電気エネルギ蓄積体（受
熱部材）２０と、パルス管冷凍機１０の高温側（図中の
上側）を除く略全体および電気エネルギ蓄積体２０を収
容するチャンバー３０とを備えている。チャンバー３０
内は真空とされているとともに、通常はコイル状とされ
た電気エネルギ蓄積体２０とパルス管冷凍機１０との接
続部２８、ひいては電気エネルギ蓄積体２０全体が当該
パルス管冷凍機１０によって冷却されている。The power storage facility 1 is a pair of pulse tube refrigerators 1 provided so that a direct current of several kA to several tens of kA can be passed.
0 (10A, 10B) and these pulse tube refrigerators 10
Low temperature side (lower side in the figure, one end side according to the present invention)
An electric energy accumulator (heat receiving member) 20 made of superconducting material connected between them, and a chamber 30 accommodating the electric energy accumulator 20 and the whole of the pulse tube refrigerator 10 except for the high temperature side (upper side in the figure) I have it. Chamber 30
The inside is evacuated, and the connection portion 28 between the electric energy storage body 20 and the pulse tube refrigerator 10 which are normally coiled, and thus the entire electric energy storage body 20, is cooled by the pulse tube refrigerator 10. ing.
【００１５】このような電力貯蔵設備１のうち、最も構
成部品の多いパルス管冷凍機１０について、以下に説明
する。それぞれのパルス管冷凍機１０は、それ自身が電
流リードとして使用されるものであって、冷凍機本体１
１と、冷凍機本体１１の高温側および低温側を貫通する
リード部材１２とを含んで構成されている。Among the electric power storage facilities 1 as described above, the pulse tube refrigerator 10 having the most components will be described below. Each pulse tube refrigerator 10 is used as a current lead by itself, and the refrigerator body 1
1 and a lead member 12 penetrating the high temperature side and the low temperature side of the refrigerator main body 11.
【００１６】冷凍機本体１１は、パルス管１３の外側に
外管１４を有した同軸二重管構造であり、各管１３，１
４間の隙間を通してヘリウム等の作動ガスが出入りす
る。具体的には、外管１４の上部には、作動ガスの流入
出口１５Ａを有したガス流入出フランジ１５が設けら
れ、この流入出口１５Ａを通して、図２に示す圧力振動
発生手段４０と各管１３，１４間の隙間との間で作動ガ
スが流入出を繰り返す。The refrigerator main body 11 has a coaxial double-tube structure having an outer tube 14 outside the pulse tube 13, and each tube 13, 1
Working gas such as helium flows in and out through the gap between the four. Specifically, a gas inflow / outflow flange 15 having a working gas inflow / outflow port 15A is provided on the upper portion of the outer pipe 14, and the pressure vibration generating means 40 and each pipe 13 shown in FIG. The working gas repeatedly flows in and out of the gap between the two.
【００１７】パルス管１３と外管１４との間の隙間に
は、上方から順に外上部フローストレーナ１６、メッシ
ュカバーパイプ１７、外下部フローストレーナ１８が配
置され、隙間の下端側が下部フランジ１９で塞がれ、下
部フランジ１９でのリード部材１２の貫通部分がシール
キャップ２１で塞がれている。An outer upper flow strainer 16, a mesh cover pipe 17, and an outer lower flow strainer 18 are arranged in this order from above in the gap between the pulse tube 13 and the outer tube 14, and the lower end side of the gap is closed by a lower flange 19. The lead cap 12 penetrates the lower flange 19 with a seal cap 21.
【００１８】外下部フローストレーナ１８の内側であっ
て、パルス管１３の低温側である下端側には、蓄冷器と
して機能する熱交換器２２が配置され、この上端側には
内下部フローストレーナ２３が配置され、各管１３，１
４間の作動ガスは、外下部フローストレーナ１８から熱
交換器２２および内下部フローストレーナ２３を通して
パルス管１３内との流入出を繰り返す。Inside the outer lower flow strainer 18 and on the lower end side which is the low temperature side of the pulse tube 13, a heat exchanger 22 functioning as a regenerator is arranged, and on the upper end side thereof, an inner lower flow strainer 23. Are placed in each tube 13,1
The working gas between 4 repeatedly flows into and out of the pulse tube 13 from the outer lower flow strainer 18 through the heat exchanger 22 and the inner lower flow strainer 23.
【００１９】一方、パルス管１３の高温側である上端側
には、内上部フローストレーナ２４が配置され、また、
内上部フローストレーナ２４を覆うように上部フランジ
２５が設けられている。この上部フランジ２５には連通
孔２５Ａが設けられており、パルス管１３の高温側と外
部の図示しないバッファタンクとを内上部フローストレ
ーナ２４を通して連通させている。On the other hand, an inner upper flow strainer 24 is arranged on the upper end side which is the high temperature side of the pulse tube 13, and
An upper flange 25 is provided so as to cover the inner upper flow strainer 24. A communication hole 25A is provided in the upper flange 25 to connect the high temperature side of the pulse tube 13 and an external buffer tank (not shown) through the inner upper flow strainer 24.
【００２０】なお、パルス管１３の高温側とバッファタ
ンクと連通させるのではなく、それぞれのパルス管冷凍
機１０の連通孔２５Ａ同士を管路等で連結し、各パルス
管１３の高温側同士を連通させてもよい。The high temperature side of the pulse tube 13 is not connected to the buffer tank, but the communication holes 25A of the pulse tube refrigerators 10 are connected to each other by a pipe line or the like, and the high temperature side of each pulse tube 13 is connected to each other. You may communicate.
【００２１】また、上部フランジ２５には放熱フィン２
６が取り付けられており、パルス管１３の高温側をも貫
通するリード部材１２の熱を内上部フローストレーナ２
４から上部フランジ２５に伝達させ、放熱フィン２６で
放熱している。従って、内上部フローストレーナ２４
は、本来の整流機能の他、リード部材１２から熱を奪う
熱交換器としても機能する。さらに、リード部材１２の
高温側を貫通する部分も、シールキャップ２７で塞がれ
ている。Further, the upper flange 25 has a radiation fin 2
6 is attached, and heat of the lead member 12 penetrating the high temperature side of the pulse tube 13 is applied to the inner upper flow strainer 2
4 is transmitted to the upper flange 25 and radiated by the radiation fins 26. Therefore, the inner upper flow strainer 24
In addition to the original rectifying function, also functions as a heat exchanger that removes heat from the lead member 12. Further, the portion penetrating the high temperature side of the lead member 12 is also closed by the seal cap 27.
【００２２】以上の冷凍機本体１１を構成する各部材
は、上部フランジ２５および放熱フィン２６は真鍮製で
あるが、他の部材は耐食性等を考慮してステンレス製と
されている。The upper flange 25 and the radiating fins 26 of each member constituting the refrigerator body 11 are made of brass, while the other members are made of stainless steel in consideration of corrosion resistance and the like.
【００２３】これに対してリード部材１２は、導電性を
考慮して銅製とされ、パルス管冷凍機１０に通電された
電流は、その殆どが冷凍機本体１１ではなく、リード部
材１２を通して流れるようになっている。On the other hand, the lead member 12 is made of copper in consideration of conductivity, and most of the current supplied to the pulse tube refrigerator 10 flows through the lead member 12, not the refrigerator body 11. It has become.
【００２４】そして、リード部材１２の図中の下端側
は、熱交換器２２に接しながら貫通していることで、低
温に冷却され、冷凍機本体１１から下方に突出した部
分、すなわち、電気エネルギ蓄積体２０との接続部２８
も直接的に冷却され、ひいては電気エネルギ蓄積体２０
全体も冷却される。The lower end side of the lead member 12 in the drawing penetrates the heat exchanger 22 while being in contact therewith, so that the lead member 12 is cooled to a low temperature and protrudes downward from the refrigerator main body 11, that is, electric energy. Connection part 28 with the accumulator 20
Is also directly cooled, and thus the electrical energy store 20
The whole is also cooled.
【００２５】反対に、冷凍機本体１１の高温側から突出
した部分には、ターミナル２９（２９Ａ，２９Ｂ）が取
り付けられ、一方のターミナル２９Ａに入力した電流
は、パルス管冷凍機１０Ａの高温側から低温側へ、そし
て、電気エネルギ蓄積体２０を通ってパルス管冷凍機１
０Ｂの低温側から高温側へ流れ、他方のターミナル２９
Ｂ側に通電される。On the contrary, the terminal 29 (29A, 29B) is attached to the portion protruding from the high temperature side of the refrigerator main body 11, and the current input to one terminal 29A is from the high temperature side of the pulse tube refrigerator 10A. To the low temperature side and through the electric energy storage body 20, the pulse tube refrigerator 1
OB flows from the low temperature side to the high temperature side, and the other terminal 29
The B side is energized.
【００２６】このようなパルス管冷凍機１０は、外管１
４の外管フランジ１４Ａに挿通されるボルト３１によ
り、ステンレス製のチャンバー３０のチャンバーフラン
ジ３２に固定される。この際、外管フランジ１４Ａとチ
ャンバーフランジ３２との間には、フッ素樹脂等からな
る絶縁リング３３が介装され、また、外管フランジ１４
Ａとボルト３１との間には同様な絶縁ブッシュ３４が介
装されている。これにより、大電流を通電させるパルス
管冷凍機１０とチャンバー３０とが電気的に絶縁されて
いる。Such a pulse tube refrigerator 10 has an outer tube 1
It is fixed to the chamber flange 32 of the chamber 30 made of stainless steel by a bolt 31 which is inserted into the outer tube flange 14A of No. 4. At this time, an insulating ring 33 made of fluororesin or the like is interposed between the outer pipe flange 14A and the chamber flange 32.
A similar insulating bush 34 is interposed between A and the bolt 31. As a result, the pulse tube refrigerator 10 for supplying a large current and the chamber 30 are electrically insulated.
【００２７】図２に示す圧力振動発生手段４０は、図中
上側が低圧側とされ、かつ下側が高圧側とされたコンプ
レッサ４１と、このコンプレッサ４１の高圧側と各パル
ス管冷凍機１０Ａ，１０Ｂとの間に設けられた高圧バル
ブ４２，４４と、各パルス管冷凍機１０Ａ，１０Ｂとコ
ンプレッサ４１の低圧側との間に設けられた低圧バルブ
４３，４５とを備えている。そして、各バルブ４２〜４
５を所定のタイミングで開閉させることにより、パルス
管冷凍機１０Ａ，１０Ｂの各パルス管１３内に交互に作
動ガスを流入出させて、各パルス管１３内に各々１８０
度の位相差で圧力振動を生じさせ、熱交換器２２に蓄冷
するようになっている。The pressure vibration generating means 40 shown in FIG. 2 has a compressor 41 whose upper side is a low pressure side and whose lower side is a high pressure side in the figure, a high pressure side of this compressor 41 and each pulse tube refrigerator 10A, 10B. And high pressure valves 42 and 44 provided between the pulse tube refrigerators 10A and 10B and the low pressure side of the compressor 41. And each valve 42-4
By opening and closing 5 at a predetermined timing, the working gas is alternately flowed into and out of each pulse tube 13 of the pulse tube refrigerators 10A and 10B, and each of the pulse tubes 13 is supplied with 180 gas.
The pressure vibration is generated by the phase difference of the degree, and the heat is stored in the heat exchanger 22.
【００２８】このような本実施形態によれば、以下のよ
うな効果がある。
(１) 電力貯蔵設備１では、各パルス管冷凍機１０（１
０Ａ，１０Ｂ）自身に通電させ、この際の電気エネルギ
を電気エネルギ蓄積体２０に蓄積する構成なので、パル
ス管冷凍機１０そのものを電流リードとして機能させ
て、パルス管冷凍機１０と電気エネルギ蓄積体２０とを
直接接続できる。従って、これらパルス管冷凍機１０と
電気エネルギ蓄積体２０とを電気的に何ら絶縁する必要
がなく、パルス管冷凍機１０とチャンバー３０とを電気
絶縁するだけでよいから、絶縁構造を大幅に簡素化で
き、小型化を促進できる。According to this embodiment, the following effects are obtained. (1) In the power storage facility 1, each pulse tube refrigerator 10 (1
0A, 10B) is energized and the electric energy at this time is stored in the electric energy storage body 20, so that the pulse tube refrigerator 10 itself is made to function as a current lead, and the pulse tube refrigerator 10 and the electric energy storage body are made to function. 20 can be directly connected. Therefore, it is not necessary to electrically insulate the pulse tube refrigerator 10 and the electric energy storage body 20 from each other, and it is only necessary to electrically insulate the pulse tube refrigerator 10 and the chamber 30, so that the insulating structure is greatly simplified. It is possible to reduce the size and promote miniaturization.
【００２９】(２) リード部材１２の上端側は、パルス
管１３の高温側を貫通しているうえ、室内に突出してい
ることで、熱影響を受けやすい。しかも、リード部材１
２は下端側まで連続した一本ものであるから、上端側で
の熱が下端側の低温部分に影響する可能性がある。しか
し、本実施形態では、パルス管冷凍機１０と電気エネル
ギ蓄積体２０とが直に接続され、接続部２８が直接的に
冷却されるから、接続部２８での従来の絶縁部材を不要
にできて熱損失を殆ど生じなようにできる。このため、
その接続部２８を、リード部材１２の上端側から下端側
への熱影響に抗して良好に冷却でき、電気エネルギ蓄積
体２０を確実に冷却して、エネルギの蓄積効率を格段に
向上させることができる。(2) Since the upper end side of the lead member 12 penetrates the high temperature side of the pulse tube 13 and projects into the room, it is easily affected by heat. Moreover, the lead member 1
Since 2 is a single piece continuous to the lower end side, heat on the upper end side may affect the low temperature part on the lower end side. However, in the present embodiment, since the pulse tube refrigerator 10 and the electric energy storage body 20 are directly connected and the connection portion 28 is directly cooled, the conventional insulating member in the connection portion 28 can be eliminated. Heat loss can be almost eliminated. For this reason,
The connection part 28 can be satisfactorily cooled against the heat effect from the upper end side to the lower end side of the lead member 12, the electric energy storage body 20 can be surely cooled, and the energy storage efficiency can be significantly improved. You can
【００３０】(３) 加えて、パルス管１３の高温側の内
上部フローストレーナ２４は、熱交換器としても機能す
るので、リード部材１２の上端側の熱を確実に除去して
下端側への熱影響をより一層抑制でき、下端側での冷却
効率を良好に維持できる。(3) In addition, since the inner-upper flow strainer 24 on the high temperature side of the pulse tube 13 also functions as a heat exchanger, the heat on the upper end side of the lead member 12 is surely removed and the upper end flow strainer 24 moves to the lower end side. The heat effect can be further suppressed, and the cooling efficiency on the lower end side can be favorably maintained.
【００３１】(４) パルス管冷凍機１０においては、リ
ード部材１２が冷凍機本体１１を貫通し、銅製とされた
このリード部材１２を通して電流が流れるため、冷凍機
本体１１側の導電性を殆ど気にする必要がなく、冷凍機
本体１１を形成する部材も、冷凍機としての耐久性など
を優先させたステンレス製にでき、パルス管冷凍機全体
としては、良好な通電性能を確保しつつ、冷凍機として
の信頼性も確実に得ることができる。(4) In the pulse tube refrigerator 10, since the lead member 12 penetrates the refrigerator body 11 and a current flows through the lead member 12 made of copper, the conductivity of the refrigerator body 11 side is almost eliminated. There is no need to worry, the members forming the refrigerator main body 11 can also be made of stainless steel giving priority to the durability as a refrigerator, and as a whole the pulse tube refrigerator, while ensuring good energization performance, The reliability as a refrigerator can be surely obtained.
【００３２】(５) 従来のＧＭサイクル冷凍機やスター
リングサイクル冷凍機を用いた場合では、熱交換器２２
に相当する部分がまさしく熱交換機能を果たしていた
が、本実施形態での熱交換器２２は専ら、蓄冷器として
機能するので、熱交換器２２内では温度差に基づく熱損
失を大きく低減でき、この点でも熱損失を抑えて冷却効
率を向上させることができる。(5) When a conventional GM cycle refrigerator or Stirling cycle refrigerator is used, the heat exchanger 22
Although the portion corresponding to the above has exactly performed the heat exchange function, since the heat exchanger 22 in the present embodiment exclusively functions as a regenerator, the heat loss based on the temperature difference in the heat exchanger 22 can be greatly reduced, Also in this respect, it is possible to suppress heat loss and improve cooling efficiency.
【００３３】(６) 電気エネルギ蓄積体２０は、その両
端から個別のパルス管冷凍機１０Ａ，１０Ｂで冷却され
ているため、電流の入力側および出力側の両方の接続部
２８を有効に冷却でき、また、電気エネルギ蓄積体２０
全体の冷却効率もさらに向上させることができる。(6) Since the electric energy storage body 20 is cooled by the individual pulse tube refrigerators 10A and 10B from both ends thereof, it is possible to effectively cool the connection portion 28 on both the current input side and the output side. , The electric energy storage body 20
The overall cooling efficiency can be further improved.
【００３４】なお、本発明は、前記実施形態に限定され
るものではなく、本発明の目的を達成できる他の構成等
を含み、以下に示すような変形等も本発明に含まれる。
例えば、前記実施形態では、リード部材１２が冷凍機本
体１１の低温側と高温側とを貫通する一本構造であった
が、低温側と高温側とに分割した構造、すなわち電気エ
ネルギ蓄積体２０との接続部２８有する低温側の部材
と、ターミナル２９が取り付けられる高温側の部材とで
構成し、パルス管１３内にリード部材が存在しない構造
であってもよい。このような構造では、リード部材とし
て低温側と高温側とで熱的に断熱されるため、リード部
材を通しての高温側から低温側への熱影響をさほど考慮
する必要がない。従って、内上部フローストレーナ２４
などは専ら整流機能だけを果たせばよく、熱交換器とし
ての機能を兼用させる必要がないので、その構造を簡素
化できる。ただし、リード部材を分割させた構造では、
電流が冷凍機本体１１を通電するようになるため、冷凍
機本体１１の構成部材を導電性に優れた材料で製造する
必要がある。The present invention is not limited to the above-described embodiment, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention.
For example, in the above-described embodiment, the lead member 12 has a single structure that penetrates the low temperature side and the high temperature side of the refrigerator main body 11, but the structure in which the lead member 12 is divided into the low temperature side and the high temperature side, that is, the electric energy storage body 20. The structure may be such that the low temperature side member having the connection portion 28 with and the high temperature side member to which the terminal 29 is attached are formed, and the lead member does not exist in the pulse tube 13. In such a structure, since the low temperature side and the high temperature side of the lead member are thermally insulated, it is not necessary to consider heat influence from the high temperature side to the low temperature side through the lead member. Therefore, the inner upper flow strainer 24
Since it is only necessary to perform the rectifying function, it is not necessary to combine the functions as a heat exchanger, so that the structure can be simplified. However, in the structure where the lead member is divided,
Since a current flows through the refrigerator main body 11, it is necessary to manufacture the constituent members of the refrigerator main body 11 with a material having excellent conductivity.
【００３５】前記実施形態では、冷凍機本体１１が同軸
二重管構造であったが、パルス管１３と外管１４とを構
造的に直列に連結した冷凍機本体を用いてもよい。Although the refrigerator main body 11 has the coaxial double tube structure in the above-mentioned embodiment, a refrigerator main body in which the pulse tube 13 and the outer tube 14 are structurally connected in series may be used.
【００３６】前記実施形態では、パルス管冷凍機１０の
上下間、すなわちパルス管冷凍機１０の長手方向の全体
を通して通電させていたが、例えば、長手方向の途中か
ら上方側（高温側）を下方側（低温側）に対して電気的
に絶縁し、下方側のみを用いて通電させてもよく、パル
ス管冷凍機の全体を使用して通電させるか、一部を使用
して通電させるかは、その実施にあたって任意に決めら
れてよい。In the above embodiment, the pulse tube refrigerator 10 is energized between the upper and lower sides of the pulse tube refrigerator 10, that is, the entire length of the pulse tube refrigerator 10 in the longitudinal direction. Side (low temperature side) may be electrically insulated and only the lower side may be energized. Whether the entire pulse tube refrigerator is energized or a part is energized However, the implementation may be arbitrarily determined.
【００３７】前記実施形態では、電気エネルギ蓄積体２
０の両端にパルス管冷凍機１０が接続されていたが、一
端のみにパルス管冷凍機１０を接続した場合でも、パル
ス管冷凍機１０の性能によっては、前記目的を十分に達
成でき、本発明に含まれる。In the above embodiment, the electric energy storage 2
Although the pulse tube refrigerator 10 is connected to both ends of 0, even when the pulse tube refrigerator 10 is connected to only one end, the above object can be sufficiently achieved depending on the performance of the pulse tube refrigerator 10. include.
【００３８】また、電気エネルギ蓄積体２０の一端側に
複数のパルス管冷凍機１０を接続して、複数のターミナ
ル２９Ａから電流を入力させたり、あるいは複数のター
ミナル２９Ｂから出力させてもよい。Further, a plurality of pulse tube refrigerators 10 may be connected to one end side of the electric energy storage body 20, and current may be input from a plurality of terminals 29A or output from a plurality of terminals 29B.
【００３９】さらに、電気エネルギ蓄積体２０として
は、その端部がパルス管冷凍機１０に接続されている必
要はなく、電気エネルギ蓄積体２０の長手方向の途中に
パルス管冷凍機１０を接続してもよい。例えば、このよ
うな構成では、電気エネルギ蓄積体２０の両端側および
中央側の３箇所にパルス管冷凍機１０を接続し、その３
箇所から冷却することも可能であり、物理的な長さの長
い電気エネルギ蓄積体２０を用いた場合でも、その全体
をむらなく効率的に冷却できる。Further, the electric energy storage body 20 does not need to have its end connected to the pulse tube refrigerator 10, but the pulse tube refrigerator 10 may be connected in the middle of the electric energy storage body 20 in the longitudinal direction. May be. For example, in such a configuration, the pulse tube refrigerator 10 is connected to three positions on both ends and the center of the electrical energy storage body 20, and
It is also possible to cool from a location, and even if the electric energy storage body 20 having a long physical length is used, the entire body can be efficiently cooled without unevenness.
【００４０】前記実施形態では、本発明に係る受熱部材
が電気エネルギ蓄積体２０とされていたが、受熱部材と
してはこれに限定されない。例えば、パス管冷凍機は、
圧力振動の位相を調整することで熱交換器に高熱を蓄熱
し、受熱部材を昇温させることも可能であるため、本発
明に係る受熱部材としては、通電と昇温との両方が要求
される部材であってもよい。In the above embodiment, the heat receiving member according to the present invention is the electric energy storage body 20, but the heat receiving member is not limited to this. For example, the pass tube refrigerator
It is also possible to store high heat in the heat exchanger and raise the temperature of the heat receiving member by adjusting the phase of the pressure oscillation, and therefore, as the heat receiving member according to the present invention, both energization and temperature increase are required. It may be a member.
【００４１】このことから、本発明の通電システムとし
ては、前記実施形態のような電力貯蔵設備１に限定され
ず、通電と昇温とを伴う受熱部材を備えた任意の通電シ
ステムであってよい。勿論、通電と冷却とを伴う受熱部
材を備えた場合でも、その受熱部材としては電気エネル
ギ蓄積体２０である必要はなく、また、通電システムと
しても電力貯蔵設備１以外であってもよい。From this, the energization system of the present invention is not limited to the electric power storage facility 1 as in the above embodiment, and may be any energization system provided with a heat receiving member that energizes and heats up. . Of course, even when the heat receiving member that energizes and cools is provided, the heat receiving member does not have to be the electrical energy storage body 20, and the energization system may be other than the power storage facility 1.
【００４２】また、パルス管冷凍機と受熱部材とを熱伝
達可能に接続するが、電気的には互いに絶縁し、よって
パルス管冷凍機のみに電流を通電させた場合でも、パル
ス管冷凍機自身を電流リードとして使用することになる
ので、本発明の請求項６に含まれる。Further, although the pulse tube refrigerator and the heat receiving member are connected so as to be capable of heat transfer, they are electrically insulated from each other, so that even when a current is passed through only the pulse tube refrigerator, the pulse tube refrigerator itself Is used as a current lead, and is included in claim 6 of the present invention.
【００４３】さらに、入力（印加）する電流としては、
直流電流、および交流電流（含む二相、三相）のいずれ
でもよく、いずれを通電させるかは、通電システムの機
能等を勘案して適宜に決められてよい。Further, as the current to be input (applied),
Either a direct current or an alternating current (including two-phase and three-phase) may be used, and which one is to be energized may be appropriately determined in consideration of the function of the energization system and the like.
【００４４】[0044]
【発明の効果】以上に述べたように、本発明によれば、
設備の小型化を促進でき、かつパルス管冷凍機と受熱部
材との接続部分に良好に伝熱できるという効果がある。As described above, according to the present invention,
This has the effects of facilitating downsizing of the equipment and good heat transfer to the connecting portion between the pulse tube refrigerator and the heat receiving member.
【図１】本発明の一実施形態に係るパルス管冷凍機を備
えた通電システムを示す全体図である。FIG. 1 is an overall view showing an energization system including a pulse tube refrigerator according to an embodiment of the present invention.
【図２】前記通電システムに用いられる圧力振動発生手
段を示す模式図である。FIG. 2 is a schematic diagram showing a pressure vibration generating means used in the energization system.
１…通電システムである電力貯蔵設備、１０，１０Ａ，
１０Ｂ…パルス管冷凍機、１１…冷凍機本体、１２…リ
ード部材、２０…受熱部材である電気エネルギ蓄積体、
３０…チャンバー。1 ... Electric power storage system that is an energization system, 10, 10A,
10B ... Pulse tube refrigerator, 11 ... Refrigerator main body, 12 ... Lead member, 20 ... Electric energy accumulator which is a heat receiving member,
30 ... Chamber.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 秋田 調 東京都狛江市戸北２−11−１ 財団法人電 力中央研究所 狛江研究所内 (72)発明者 笠原 奉文 東京都狛江市戸北２−11−１ 財団法人電 力中央研究所 狛江研究所内 (72)発明者 鳥居 慎治 東京都狛江市戸北２−11−１ 財団法人電 力中央研究所 狛江研究所内 Ｆターム(参考） 5H655 BB01 CC22 DD03 DD12 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Akita 2-11-1, Tohoku, Komae-shi, Tokyo Denden Foundation Riki Chuo Research Center Komae Research Center (72) Inventor Fumifumi Kasahara 2-11-1, Tohoku, Komae-shi, Tokyo Denden Foundation Riki Chuo Research Center Komae Research Center (72) Inventor Shinji Torii 2-11-1, Tohoku, Komae-shi, Tokyo Denden Foundation Riki Chuo Research Center Komae Research Center F-term (reference) 5H655 BB01 CC22 DD03 DD12
Claims (6)
接続されるパルス管冷凍機であって、前記受熱部材との
間で通電可能に設けられていることを特徴とするパルス
管冷凍機。1. A pulse tube refrigerator in which a heat receiving member is connected to one end side where there is a temperature difference at both ends, the pulse tube refrigerating device being provided so as to be able to conduct electricity with the heat receiving member. Machine.
て、冷凍機本体と、この冷凍機本体の前記両端を貫通す
るリード部材とを含んで構成され、このリード部材の前
記一端側から突出した部分に前記被冷却部材が接続され
ていることを特徴とするパルス管冷凍機。2. The pulse tube refrigerator according to claim 1, wherein the pulse tube refrigerator includes a refrigerator main body and lead members penetrating both ends of the refrigerator main body, and the one end side of the lead member. A pulse tube refrigerator in which the member to be cooled is connected to a portion protruding from the pulse tube refrigerator.
管冷凍機を備えていることを特徴とするパルス管冷凍機
を用いた通電システム。3. A power supply system using a pulse tube refrigerator, comprising the pulse tube refrigerator according to claim 1. Description:
た通電システムにおいて、前記受熱部材は、少なくとも
一対のパルス管冷凍機間に接続され、一方のパルス管冷
凍機から前記受熱部材を通して他方のパルス管冷凍機に
かけて通電可能に設けられていることを特徴とするパル
ス管冷凍機を用いた通電システム。4. The energization system using the pulse tube refrigerator according to claim 3, wherein the heat receiving member is connected between at least a pair of pulse tube refrigerators, and one of the pulse tube refrigerators passes through the heat receiving member. An energization system using a pulse tube refrigerator, which is provided so as to be energized to the other pulse tube refrigerator.
載のパルス管冷凍機を用いた通電システムにおいて、前
記受熱部材が電気エネルギ蓄積体とされた電力貯蔵設備
であることを特徴とするパルス管冷凍機を用いた通電シ
ステム。5. The energization system using the pulse tube refrigerator according to claim 3 or 4, wherein the heat receiving member is an electric power storage facility that is an electric energy storage body. An energization system using a pulse tube refrigerator.
ードとして用いることを特徴とするパルス管冷凍機の使
用方法。6. A method of using a pulse tube refrigerator, wherein the pulse tube refrigerator itself is used as a current lead that can be energized.
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|---|---|---|---|
| JP2002143303A JP4000364B2 (en) | 2002-05-17 | 2002-05-17 | Energization system using pulse tube refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002143303A JP4000364B2 (en) | 2002-05-17 | 2002-05-17 | Energization system using pulse tube refrigerator |
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|---|---|
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| JP4000364B2 JP4000364B2 (en) | 2007-10-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007093120A (en) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | Pulse tube refrigerating machine |
| JP2015031424A (en) * | 2013-08-01 | 2015-02-16 | 住友重機械工業株式会社 | Refrigerating machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5243154B2 (en) * | 2008-09-05 | 2013-07-24 | 九州電力株式会社 | Current leads for superconducting equipment |
-
2002
- 2002-05-17 JP JP2002143303A patent/JP4000364B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007093120A (en) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | Pulse tube refrigerating machine |
| JP4718957B2 (en) * | 2005-09-29 | 2011-07-06 | 株式会社東芝 | Pulse tube refrigerator |
| JP2015031424A (en) * | 2013-08-01 | 2015-02-16 | 住友重機械工業株式会社 | Refrigerating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4000364B2 (en) | 2007-10-31 |
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