JPS63297983A - Cryogenic cold reserving device - Google Patents
Cryogenic cold reserving deviceInfo
- Publication number
- JPS63297983A JPS63297983A JP62131223A JP13122387A JPS63297983A JP S63297983 A JPS63297983 A JP S63297983A JP 62131223 A JP62131223 A JP 62131223A JP 13122387 A JP13122387 A JP 13122387A JP S63297983 A JPS63297983 A JP S63297983A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquefied gas
- cold
- cold storage
- liquefied
- 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.)
- Pending
Links
- 238000003860 storage Methods 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 76
- 239000003507 refrigerant Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/17—Re-condensers
-
- 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
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は低温保冷装置に係り、特にコンピュータのＣＰ
Ｕやメモリ等を冷却するのに好適な低温保冷装置に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a low temperature cooling device, and particularly to a computer CPU.
The present invention relates to a low temperature cooling device suitable for cooling U, memory, etc.
従来の冷却装置、例えば、電子素子を実装したＣＰＵや
メモリを極低温に冷却して動作させる極低温コンピュー
タの冷却装置としては、アイ・イー・イー・イー、トラ
ンザクション オン エレクトロン ディバイシス、Ｅ
Ｄ−３４Ｎｏ、１ （１９８７年）第４頁から第７頁（
Ｉ、 Ｅ Ｅ Ｅ ＴＲＡＮＳＡ ＣＴｌ０ＮＳ Ｏ
Ｎ ＥＬＥＣＴＲＯＮ ［１ＥＶＩＣＥＳ、 ＶＯＬ、
Ｅ Ｄ −３４、Ｎｏ、Ｉ ＪＡＮＶＡＲＹ１９８
７．ＰＰ４−７）において論じられている。Conventional cooling devices, such as cooling devices for cryogenic computers that operate by cooling CPUs and memory mounted with electronic elements to extremely low temperatures, are available from IE, Transactions on Electron Devices, and E.
D-34 No. 1 (1987) pages 4 to 7 (
I, E E E TRANSA CTl0NS O
N ELECTRON [1EVICES, VOL,
ED-34, No, I JANVARY198
7. PP4-7).
また、この種の装置として関連するものには例えば米国
特許第４２２３５４０号明細書等が挙げられる。Further, related devices of this type include, for example, US Pat. No. 4,223,540.
上記従来技術は冷却媒体の供給の点について配慮されて
おらず、保冷槽内の冷却媒体である液化ガスを供給また
は補充するのに液体ガスを供給しており、そのため液化
ガスを貯蔵した液化ガスタンクが必要になり、設備費が
掛かるという問題があった。The above conventional technology does not take into consideration the supply of the cooling medium, and instead supplies liquid gas to supply or replenish the liquefied gas that is the cooling medium in the cold storage tank, so the liquefied gas tank storing the liquefied gas There was a problem in that this required equipment costs.
本発明の目的は、設備費が安価で、簡単に冷媒ガスを供
給することのできる低温保冷装置を提供することにある
。An object of the present invention is to provide a low-temperature cold storage device that has low equipment costs and can easily supply refrigerant gas.
上記目的は、液化ガスを貯蔵する保冷槽と、保冷槽の外
側に断熱空間を形成する外槽と、液化ガスのガスを供給
する供給手段とｊ液化ガスで冷却されガスを精製して供
給する吸着器と、保冷槽内のガスを凝縮する冷却手段と
から構成することにより、達成される。The above purpose is to provide a cold storage tank for storing liquefied gas, an outer tank for forming a heat insulating space on the outside of the cold storage tank, a supply means for supplying liquefied gas, and a purified gas cooled by the liquefied gas for supply. This is achieved by comprising an adsorber and a cooling means for condensing the gas in the cold storage tank.
保冷槽内の液化ガスによって冷却された吸着器を介して
、供給手段によって外部から保冷槽内にガスを供給し、
冷凍機によって該ガスを冷却して凝縮させる。これによ
り、液化ガスを供給することなく、ガスの供給だけです
み設備費が安価で、簡単に冷媒ガスを供給できる。Supplying gas from the outside into the cold storage tank by a supply means through an adsorption device cooled by the liquefied gas in the cold storage tank,
The gas is cooled and condensed by a refrigerator. As a result, the equipment cost is low and refrigerant gas can be easily supplied without supplying liquefied gas and requiring only gas supply.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
外槽３内に保冷槽１を設け、外槽３と保冷槽１との間に
断熱空間２、この場合は、真空断熱空間を形成し、上部
にフランジ５を取り付けて容器を形成する。A cold storage tank 1 is provided in an outer tank 3, a heat insulation space 2, in this case, a vacuum heat insulation space, is formed between the outer tank 3 and the cold storage tank 1, and a flange 5 is attached to the upper part to form a container.
フランジ５には、この場合、開口部が３ケ所設けてあり
、一つには冷凍機６を取り付け、冷凍機６のコールドス
テージ璽ン７を保冷槽ｌ内に収納し、他方の開口部には
蓋１４を取り付け、蓋１４にサポート１５を介して支持
した被冷却体、例えば、電子素子を実装したＣＰＵやメ
モリを取り付けた基板１６が保冷槽ｌ内に収納しである
。この場合、基板１６は保冷槽１内に貯蔵した液化ガス
４中に侵潰してあり、基板１６に接続されたリード線１
７はｉ１４を貫通して外部に引き出され、外部に設けた
インタフェイス１８に接続される。In this case, the flange 5 has three openings; the refrigerator 6 is attached to one, the cold stage seal 7 of the refrigerator 6 is housed in the cold storage tank l, and the other opening is provided with a refrigerator 6. A lid 14 is attached, and an object to be cooled supported by the lid 14 via a support 15, such as a board 16 with a CPU mounted with an electronic element or a memory mounted thereon, is housed in the cold storage tank l. In this case, the substrate 16 is crushed in the liquefied gas 4 stored in the cold storage tank 1, and the lead wire 1 connected to the substrate 16 is
7 passes through i14 and is drawn out to the outside, and is connected to an interface 18 provided outside.
さらに他方の開口部には筒状の導入管８を取り付け、常
温から液化ガス温度までの間に固化点を有するガスを吸
着する活性炭を充填した吸着器９を途中に設けた冷媒ガ
ス導管１０が導入管８内を通って保冷槽ｌ内に導いであ
る。吸着器９は導入管８部に挿入され、隙間はシールし
密封しである。Furthermore, a cylindrical introduction pipe 8 is attached to the other opening, and a refrigerant gas conduit 10 is provided with an adsorber 9 filled with activated carbon that adsorbs gases that have a solidification point between room temperature and liquefied gas temperature. It passes through the introduction pipe 8 and is led into the cold storage tank l. The adsorber 9 is inserted into the introduction pipe 8, and the gap is sealed.
導入管８は熱侵入を防ぐため薄肉の材料で形成され、液
化ガスの液面下まで導いてあり、吸着器９も液化ガス４
内に漬けである。The introduction pipe 8 is made of a thin-walled material to prevent heat from entering, and is led to below the surface of the liquefied gas.
It is pickled inside.
冷媒ガス導管１０の大気側には流量調整弁１１および加
圧機１２が順次取り付けられ、端部には空気取入口が設
けである。流量調整弁１１および加圧機１２はそれぞれ
制御装置２２に接続され、さらに制御装置２２には保冷
槽１内に設けた液面計２１と、保冷槽１内の圧力を測定
する圧力計１９と、コールドステーション７に設はコー
ルドステーション７の温度を測定する温度計を有した熱
負荷装置２０とが接続しである。A flow rate regulating valve 11 and a pressurizer 12 are sequentially attached to the atmospheric side of the refrigerant gas conduit 10, and an air intake port is provided at the end. The flow rate adjustment valve 11 and the pressurizer 12 are each connected to a control device 22, and the control device 22 further includes a liquid level gauge 21 provided inside the cold storage tank 1, a pressure gauge 19 that measures the pressure inside the cold storage tank 1, A heat load device 20 having a thermometer for measuring the temperature of the cold station 7 is connected to the cold station 7 .
上記構成の装置により、空気取入口１３から加圧機１２
に吸込まれた空気が加圧され、流量制御弁１１を介して
吸着器９に送られ、水分、炭酸ガス、炭化水素ガス等の
不純ガスが吸着除去されて精製された酸素および窒素の
混合ガス、または酸素も吸着除去した窒素ガスが保冷槽
１内に供給される。このとき、精製されたガスは冷媒ガ
ス導管１０を通過する際に液化ガスで冷やされ液化して
液化ガスとなる。With the device having the above configuration, the air intake port 13 can be connected to the pressurizer 12.
The air sucked into is pressurized and sent to the adsorber 9 via the flow rate control valve 11, where impurity gases such as moisture, carbon dioxide, and hydrocarbon gas are adsorbed and removed to produce a purified mixed gas of oxygen and nitrogen. , or nitrogen gas from which oxygen has also been adsorbed and removed is supplied into the cold storage tank 1 . At this time, when the purified gas passes through the refrigerant gas conduit 10, it is cooled by liquefied gas and liquefied to become liquefied gas.
また、保冷槽１内の液化ガス４が蒸発したガスは保冷槽
１内の液化ガス４液面上の空間に充満しており、冷凍４
５１６で冷却されたコールドステージ璽ンによって冷や
され凝縮して液化し、液化ガス４となる。In addition, the evaporated gas of the liquefied gas 4 in the cold storage tank 1 fills the space above the liquid level of the liquefied gas 4 in the cold storage tank 1, and
At step 516, the gas is cooled and condensed and liquefied by the cooled cold stage tube to become liquefied gas 4.
なお、これら精製ガスの供給および冷凍４Ｉ！６の運転
にあたっては、流血計２１および圧力計１９さらに熱負
荷装置２０に設けられた温度計からの情報を制御装置２
２に取り込んで、制御装置２２によって行なわれる。In addition, these purified gas supplies and refrigeration 4I! 6, information from the blood flow meter 21, pressure gauge 19, and thermometer provided in the heat load device 20 is transmitted to the control device 2.
2 and executed by the control device 22.
例えば、保冷槽１内の液化ガスは外部からのわずかな熱
侵入によって少しずつ蒸発し、保冷槽１上部に溜まる。For example, the liquefied gas in the cold storage tank 1 evaporates little by little due to slight heat intrusion from the outside and accumulates in the upper part of the cold storage tank 1.
この間、蒸発した低温ガスはコールドヘッド７で再凝縮
され液化ガスとなり、これを繰り返す、このとき、保冷
槽１内での液化ガス量が安定するように、すなわち、保
冷槽１内の低温ガス圧力が一定するように、低温ガス圧
力を圧力計１９によって測定し、コールドステージ璽ン
７で凝縮され液化ガスとなる量を熱負荷装置２０を制御
装置２２によって制御する。なお、この場合、熱負荷装
置２０に内股した温度計から制御装置２２に信号が送ら
れ、加温温度を制御するようになっている。During this time, the evaporated low-temperature gas is recondensed in the cold head 7 and becomes liquefied gas, and this process is repeated. The low-temperature gas pressure is measured by a pressure gauge 19 so that the pressure of the low-temperature gas is constant, and the amount that is condensed into liquefied gas in the cold stage tube 7 is controlled by the heat load device 20 and the control device 22. In this case, a signal is sent from a thermometer installed in the heat load device 20 to the control device 22 to control the heating temperature.
また、この制御において、コールドステーション７の温
度が大気圧での液化ガスの沸点温度よりもかなり低い場
合には保冷槽内の圧力は負圧となるので、この場合、圧
力計１８の信号を制御装置２２が受けて熱負荷装置２０
を作動させ、コールドステーション７を加温する。また
、熱負荷装置２０に設けた温度計の測定値が液化ガスの
沸点温度よりも充分低く、なおかつ、保冷槽１内の圧力
が増加する場合は、コールドステーション７の凝縮面で
液化ガスが固化しているので、熱負荷装置２０を作動さ
せてコールドステーション７を加温し固化ガスを溶かし
、凝縮面を再生する。In addition, in this control, if the temperature of the cold station 7 is considerably lower than the boiling point temperature of the liquefied gas at atmospheric pressure, the pressure in the cold storage tank becomes negative pressure, so in this case, the signal of the pressure gauge 18 is controlled. The heat load applied to the device 22 by the device 20
to warm the cold station 7. In addition, if the measured value of the thermometer installed in the heat load device 20 is sufficiently lower than the boiling point temperature of the liquefied gas and the pressure inside the cold storage tank 1 increases, the liquefied gas will solidify on the condensation surface of the cold station 7. Therefore, the heat load device 20 is activated to heat the cold station 7, melt the solidified gas, and regenerate the condensing surface.
また、保冷槽１は一応密閉しであるので、保冷槽１外へ
の低温ガスのリークはないと考えられ、この状態では液
化ガス４の液面は一定の高さに保持される。しかし、仮
に、低温ガスがリークしたとしたら、その分液化ガス４
が少なくなり液面が低下する。液化ガス４の液面が低下
し液面計２１の所定位置まで液面が低下すると、制御装
置２２に液面計２１からの信号が送られ、制御装置２２
は加圧器１２および流量調整弁１１を制御して、精製し
たガスを保冷槽ｌ内に少量づつ補給する。Furthermore, since the cold storage tank 1 is sealed, it is considered that there is no leakage of low temperature gas to the outside of the cold storage tank 1, and in this state, the liquid level of the liquefied gas 4 is maintained at a constant level. However, if low-temperature gas leaks, the liquefied gas 4
decreases and the liquid level drops. When the liquid level of the liquefied gas 4 decreases to a predetermined position of the liquid level gauge 21, a signal from the liquid level gauge 21 is sent to the control device 22,
controls the pressurizer 12 and the flow rate regulating valve 11 to replenish the purified gas into the cold storage tank l little by little.
補給されたガスは液化ガス４によって、凝縮され、液化
し液化ガスとなって保冷槽１内に溜まり、徐々に液面が
上昇する。液面が所定高さまで達すると、制御装置２２
は液面計２１からの信号を受けて、加圧機１２および流
量調整弁１１を制御してガスの供給を停止させ、補給を
終了する。The replenished gas is condensed by the liquefied gas 4, becomes liquefied gas, and accumulates in the cold storage tank 1, and the liquid level gradually rises. When the liquid level reaches a predetermined height, the control device 22
receives the signal from the liquid level gauge 21, controls the pressurizer 12 and the flow rate adjustment valve 11 to stop the gas supply, and ends the replenishment.
以上、木−実施例によれば、液化ガスが少なくなっても
液化ガスを供給することなく、空気を精製した酸素や窒
素を冷媒ガスとして供給できるので、いつでも冷媒ガス
を供給できるとともに、冷媒ガスを購込する必要もなく
、設備費が安価で、簡単に冷媒ガスを供給できるという
効果がある。As described above, according to the embodiment, oxygen or nitrogen purified from air can be supplied as refrigerant gas without supplying liquefied gas even when the liquefied gas is low, so refrigerant gas can be supplied at any time, and refrigerant gas can be supplied at any time. There is no need to purchase refrigerant gas, equipment costs are low, and refrigerant gas can be easily supplied.
また、ガスのみを供給するので、液化ガスに比べて管理
が簡単になるという効果がある。Furthermore, since only gas is supplied, it has the effect of being easier to manage than liquefied gas.
なお、本実施例ではガスを供給する際に、加圧機１２で
空気を加圧して送るようにしているが、精製ガスは液化
ガス４によって凝縮、液化され、冷媒ガス導管１０内の
圧力は低下し、大気圧との間に差圧が生じるので、差圧
によって空気を吸着器９内に吸い込み、精製したガスを
保冷槽内に供給するようにしても良い、これによれば、
ガス供給部の装置を簡単にできる。In this embodiment, when supplying gas, air is pressurized and sent by the pressurizer 12, but the purified gas is condensed and liquefied by the liquefied gas 4, and the pressure inside the refrigerant gas conduit 10 is reduced. However, since a pressure difference occurs between the atmospheric pressure and the atmospheric pressure, air may be sucked into the adsorber 9 by the pressure difference, and purified gas may be supplied into the cold storage tank. According to this,
Gas supply unit equipment can be simplified.
また、木−実施例では基板１６を液化ガス中に浸漬して
いるが、基板１６の必要冷却温度によっては、基板１６
を液化ガスに一部漬けたり、さらには液化ガス４の蒸発
した低温ガスで冷却するようにしても良い。In addition, although the substrate 16 is immersed in the liquefied gas in the wooden example, depending on the required cooling temperature of the substrate 16,
may be partially immersed in liquefied gas, or further may be cooled with evaporated low temperature gas of liquefied gas 4.
さらに、冷凍機６においても、往復動式の膨張機、ター
ビン式の膨張機、磁気冷凍機等いろいろ適用でき、限定
されるものではない。Furthermore, the refrigerator 6 can also be applied in various ways, such as a reciprocating expander, a turbine expander, a magnetic refrigerator, etc., and is not limited thereto.
本発明によれば、保冷槽内へは空気を精製したガスを供
給するだけで良く、設備費が安価になり、簡単に冷媒ガ
スを供給することができるという効果がある。According to the present invention, it is only necessary to supply gas purified from air into the cold storage tank, and the equipment cost is reduced and refrigerant gas can be easily supplied.
第１図は本発明の一実施例である低温保冷装置を示す断
面図である。FIG. 1 is a sectional view showing a low-temperature cooling device which is an embodiment of the present invention.
Claims (1)
熱空間を形成する外槽と、前記液化ガスのガスを供給す
る供給手段と、前記液化ガスで冷却され前記ガスを精製
して供給する吸着器と、前記保冷槽内のガスを凝縮する
冷却手段とから成ることを特徴とする低温保冷装置。 ２、前記保冷槽内に前記液化ガスまたは前記液化ガスが
蒸発した低温ガスで冷却される被冷却体を収納した特許
請求の範囲第１項記載の低温保冷装置。[Claims] 1. A cold storage tank for storing liquefied gas, an outer tank forming a heat insulating space outside the cold storage tank, a supply means for supplying the liquefied gas, and a cooling tank that is cooled by the liquefied gas. A low-temperature cold storage device comprising an adsorption device that purifies and supplies the gas, and a cooling means that condenses the gas in the cold storage tank. 2. The low-temperature cold storage device according to claim 1, wherein an object to be cooled to be cooled by the liquefied gas or a low-temperature gas obtained by evaporating the liquefied gas is housed in the cold storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131223A JPS63297983A (en) | 1987-05-29 | 1987-05-29 | Cryogenic cold reserving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131223A JPS63297983A (en) | 1987-05-29 | 1987-05-29 | Cryogenic cold reserving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63297983A true JPS63297983A (en) | 1988-12-05 |
Family
ID=15052910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62131223A Pending JPS63297983A (en) | 1987-05-29 | 1987-05-29 | Cryogenic cold reserving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63297983A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285959A (en) * | 2001-03-27 | 2002-10-03 | Sumitomo Heavy Ind Ltd | Vacuum-maintaining method for refrigerant recondenser |
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
| JP2020126936A (en) * | 2019-02-05 | 2020-08-20 | 富士通株式会社 | Immersion cooling device |
-
1987
- 1987-05-29 JP JP62131223A patent/JPS63297983A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285959A (en) * | 2001-03-27 | 2002-10-03 | Sumitomo Heavy Ind Ltd | Vacuum-maintaining method for refrigerant recondenser |
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
| JP2020126936A (en) * | 2019-02-05 | 2020-08-20 | 富士通株式会社 | Immersion cooling device |
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