JPH0233571A - Refrigerating device - Google Patents
Refrigerating deviceInfo
- Publication number
- JPH0233571A JPH0233571A JP18480788A JP18480788A JPH0233571A JP H0233571 A JPH0233571 A JP H0233571A JP 18480788 A JP18480788 A JP 18480788A JP 18480788 A JP18480788 A JP 18480788A JP H0233571 A JPH0233571 A JP H0233571A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- compressor
- precooler
- bypass pipe
- valve
- 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
- 239000003507 refrigerant Substances 0.000 claims abstract description 67
- 238000010257 thawing Methods 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000005057 refrigeration Methods 0.000 claims description 19
- 238000004904 shortening Methods 0.000 abstract description 2
- 239000006200 vaporizer Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 101100170542 Mus musculus Disp1 gene Proteins 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 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
- F25B2400/07—Details of compressors or related parts
- F25B2400/072—Intercoolers therefor
Landscapes
- Defrosting Systems (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、予冷器を有する圧縮機を備えた冷凍装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a refrigeration system equipped with a compressor having a precooler.
（ロ）従来の技術
予冷器（ディスパヒータ）を有する圧縮機を備えた冷凍
装置（空気調和機）としては実公昭５７−３７０１２号
公報があり、この圧縮機から凝縮器へ導びかれる冷媒の
温度は、予め予冷器で冷やされるため比較的低い温度に
設定されている。(b) Conventional technology Japanese Utility Model Publication No. 57-37012 discloses a refrigeration system (air conditioner) equipped with a compressor having a precooler (dispa heater), in which refrigerant is guided from the compressor to the condenser. The temperature is set to a relatively low temperature because it is cooled in advance with a precooler.
（ハ）発明が解決しようとする課題
このように、圧縮機から吐出される冷媒は低い温度に設
定されているため、冷凍装置の能力を負荷に応じて変え
ることはむずかしかった。又、この圧縮機を、冷却運転
並びに除霜運転が行なえる冷凍装置に組み込んだ場合、
圧縮機からの吐出冷媒の温度が低いために、除霜運転の
時間が長くなるおそれがあった。(c) Problems to be Solved by the Invention As described above, since the refrigerant discharged from the compressor is set at a low temperature, it is difficult to change the capacity of the refrigeration system according to the load. Also, when this compressor is incorporated into a refrigeration system that can perform cooling and defrosting operations,
Since the temperature of the refrigerant discharged from the compressor was low, there was a risk that the defrosting operation would take a long time.
本発明は、予冷器を備えた圧縮機を有する冷凍装置にお
いて、その能力を変えられるようにし、又、除霜運転の
時間を短かくすることを目的としたものである。併せて
、除霜運転時の圧縮機への液冷媒の戻りを防止すること
を目的としたものである。The present invention aims to make it possible to change the capacity of a refrigeration system having a compressor equipped with a precooler, and to shorten the time required for defrosting operation. In addition, the purpose is to prevent liquid refrigerant from returning to the compressor during defrosting operation.
（ニ）課題を解決するための手段
この目的を達成するために本発明は、予冷器のバイパス
管に開閉弁を設けるようにしたものである。更に、この
圧縮機を有する冷凍装置で冷却運転と除霜運転とが行な
えるようにし、除霜運転時にこの開閉弁を開放するよう
にしている。又、冷却運転時と除霜運転時に冷媒の流れ
を逆にするための四方弁を設けるようにしている。又、
熱源側熱交換器と予冷器とを熱交換関係に配置し、開閉
弁を除霜運転開始から一定時間経過後に閉じるようにし
ている。(d) Means for Solving the Problems In order to achieve this object, the present invention provides an on-off valve in the bypass pipe of the precooler. Furthermore, the refrigeration system having this compressor is capable of performing a cooling operation and a defrosting operation, and the opening/closing valve is opened during the defrosting operation. Further, a four-way valve is provided to reverse the flow of refrigerant during cooling operation and defrosting operation. or,
The heat source side heat exchanger and the precooler are arranged in a heat exchange relationship, and the on-off valve is closed after a certain period of time has elapsed from the start of the defrosting operation.
（ネ）作用
予冷器に開閉弁のあるバイパス管を設けたので、開閉弁
の開閉動作によって圧縮機から吐出される冷媒の温度が
制御される。又、除霜運転時に圧縮機から吐出される冷
媒の温度を、冷却運転時に圧縮機から吐出される冷媒の
温度よりも高くすることによって、除霜運転の時間を短
かくしている。更に四方弁によって冷却運転時の冷媒の
流れ方向と除霜運転時の冷媒の流れ方向とを逆にし、且
つ熱源側熱交換器と予冷器とを熱交換関係に配置して、
除霜運転開始から一定時間経過後は、予冷器の熱で熱源
側熱交換器内を流れる冷媒を加熱する。(f) Function Since the precooler is provided with a bypass pipe having an on-off valve, the temperature of the refrigerant discharged from the compressor is controlled by the opening/closing operation of the on-off valve. Furthermore, the time required for defrosting operation is shortened by making the temperature of the refrigerant discharged from the compressor during defrosting operation higher than the temperature of the refrigerant discharged from the compressor during cooling operation. Furthermore, the flow direction of the refrigerant during the cooling operation and the flow direction of the refrigerant during the defrosting operation are reversed by a four-way valve, and the heat source side heat exchanger and the precooler are arranged in a heat exchange relationship,
After a certain period of time has passed from the start of the defrosting operation, the refrigerant flowing in the heat source side heat exchanger is heated by the heat of the precooler.
（へ）実施例
第１図は本発明の冷凍装置の一実施例を示し、１は圧縮
機、２は凝縮器、３は膨張弁、４はこの膨張弁３と並列
につながれた除霜用配管で、除霜運転時のみ開放される
制御弁５が配置されている。６は蒸発器、７はアキュム
レータでこれら機器が順次つながれて冷凍サイクルを構
成している。８は予冷器で、圧縮機１につながれて、こ
の圧縮機１の内部を冷やすための冷媒が導びかれる。・
９は予冷器８の入口管１０に配置された開閉弁（以下三
方弁という）で、この三方弁９の一端１１はこの予冷器
８のバイパス管１２を介して出口管１３につながれてい
る。１４はこの出口管１３に配置された逆止弁で、出口
管１３内における冷媒の逆流を防止するものである。１
５は制御弁５並びに三方弁９の動作を制御する制御装置
で、この装置からの信号で制御弁５は冷却運転時に閉じ
られ除霜運転時に開放きれる。又、三方弁９は入口管１
０の冷媒が冷却運転時に予冷器８へ、除霜運転時にバイ
パス管１２へ夫々流れるよう制御される。(F) Embodiment Figure 1 shows an embodiment of the refrigeration system of the present invention, in which 1 is a compressor, 2 is a condenser, 3 is an expansion valve, and 4 is a defrosting device connected in parallel with the expansion valve 3. A control valve 5 that is opened only during defrosting operation is arranged in the piping. 6 is an evaporator, 7 is an accumulator, and these devices are connected in sequence to form a refrigeration cycle. A precooler 8 is connected to the compressor 1, and a refrigerant for cooling the inside of the compressor 1 is introduced thereinto.・
Reference numeral 9 denotes an on-off valve (hereinafter referred to as a three-way valve) disposed in an inlet pipe 10 of the precooler 8, and one end 11 of the three-way valve 9 is connected to an outlet pipe 13 via a bypass pipe 12 of the precooler 8. Reference numeral 14 denotes a check valve disposed in the outlet pipe 13, which prevents the refrigerant from flowing back inside the outlet pipe 13. 1
Reference numeral 5 denotes a control device that controls the operation of the control valve 5 and the three-way valve 9. In response to a signal from this device, the control valve 5 is closed during the cooling operation and completely opened during the defrosting operation. Also, the three-way valve 9 is connected to the inlet pipe 1
The refrigerant is controlled to flow to the precooler 8 during the cooling operation and to the bypass pipe 12 during the defrosting operation.
このような構成を有する冷凍装置において、冷却運転時
は冷媒が実線矢印のように流れる。すなわち、圧縮機１
内の冷媒はまず三方弁９を介して予冷器８に流入し、こ
こで冷却された後この圧縮機１に戻り、この圧縮機１の
内部（モーター等）を冷却し、その後、凝縮器２へ送り
込まれる。その後膨張弁３から蒸発器６を介して圧縮機
１に戻る。ここで、負荷が増加した場合は、−時的に冷
媒をバイパス管１２へ流す（予冷器８へは流さない）よ
うにすることにより、圧縮機１から吐出される冷媒の温
度を高めて冷凍能力を高めることができる。そして冷却
運転によって蒸発器６に霜が付着した場合は、除霜運転
を行なう。In the refrigeration system having such a configuration, during cooling operation, the refrigerant flows as indicated by the solid arrow. That is, compressor 1
The refrigerant inside first flows into the precooler 8 via the three-way valve 9, is cooled there, returns to the compressor 1, cools the inside of the compressor 1 (motor, etc.), and then flows into the condenser 2. sent to. Thereafter, it returns from the expansion valve 3 to the compressor 1 via the evaporator 6. Here, if the load increases, the temperature of the refrigerant discharged from the compressor 1 is raised by temporarily causing the refrigerant to flow into the bypass pipe 12 (not into the precooler 8). You can improve your abilities. If frost forms on the evaporator 6 during the cooling operation, a defrosting operation is performed.
この除霜運転時は制御弁５を開放すると共に、入口管１
０の冷媒がバイパス管１２へ流れるよう三方弁９を切り
換えて冷媒を破線矢印のように流す、すなわち、圧縮機
１内の冷媒は予冷器８に流入されずバイパス管１２を介
して圧縮機１に戻される。その後再び圧縮機１から吐出
されて凝縮器２、制御弁５、蒸発器６と流れこの蒸発器
６に付着していた霜を溶かす、ここで圧縮機１の吐出管
１６から吐出された冷媒の温度は予冷器８で冷却されて
いないため、冷却運転時に吐出管１６から吐出される冷
媒の温度よりも高くなり、これによって蒸発器６に付着
していた霜を溶かす時間（除霜時間）を短かくすること
ができる。尚、この除霜運転時は予冷器８に冷媒を流さ
ないようにしたため、冷媒で圧縮機１の内部を冷却する
ことはできないが、除霜時間が長くなるにつれてこの冷
凍装置内の冷媒の温度が低下し、且つこの除霜時間が短
かいため、圧縮機１の運転に支障をきたすおそれは少な
い。During this defrosting operation, the control valve 5 is opened and the inlet pipe 1 is opened.
The three-way valve 9 is switched so that the refrigerant at No. 0 flows into the bypass pipe 12, and the refrigerant flows in the direction of the dashed arrow. In other words, the refrigerant in the compressor 1 does not flow into the precooler 8, but flows into the compressor 1 through the bypass pipe 12. will be returned to. Thereafter, the refrigerant is discharged from the compressor 1 again and flows through the condenser 2, the control valve 5, and the evaporator 6 to melt the frost attached to the evaporator 6. Since the temperature is not cooled by the precooler 8, it becomes higher than the temperature of the refrigerant discharged from the discharge pipe 16 during cooling operation, and this reduces the time required to melt the frost attached to the evaporator 6 (defrosting time). Can be shortened. Note that during this defrosting operation, the refrigerant is not allowed to flow through the precooler 8, so the inside of the compressor 1 cannot be cooled by the refrigerant, but as the defrosting time becomes longer, the temperature of the refrigerant in this refrigeration system increases. Since the defrosting time is reduced and the defrosting time is short, there is little possibility that the operation of the compressor 1 will be disturbed.
第２図は他の実施例を示すもので、第１図に示した実施
例と基本的に異なる点は四方弁２０を配置して冷却運転
時の冷媒の流れ方向と除霜運転時の冷媒の流れ方向とを
逆にしたことである。尚、第１図と同一部品には同一符
号を付してその説明は省略した。２１は除霜用減圧回路
で、冷却運転時に開放され除霜運転時のみ閉じられる第
１逆止弁２２と、除霜運転時にのみ作用するキャピラリ
チューブ２３とが並列につながれている。２４は受液器
、２５は冷却用減圧回路で冷却運転時に閉じられ除霜運
転時に開放きれる第２逆止弁２６と冷却運転時のみ作用
する膨張弁２７とが並列につながれている。又、３０は
冷却運転時に凝縮器として、除霜運転時に蒸発器として
夫々作用する熱源側熱交換器で、この熱交換器には予冷
器８が熱交換関係に一体的に組み合せられている。そし
て制御装置２８によって四方弁２０並びに三方弁９が制
御される。この三方弁の操作によって冷却運転時は圧縮
機１からの冷媒を予冷器８へ導びく。FIG. 2 shows another embodiment, which basically differs from the embodiment shown in FIG. This is because the direction of flow is reversed. Components that are the same as those in FIG. 1 are given the same reference numerals and their explanations are omitted. Reference numeral 21 denotes a defrosting pressure reducing circuit, in which a first check valve 22 that is opened during cooling operation and closed only during defrosting operation, and a capillary tube 23 that operates only during defrosting operation are connected in parallel. 24 is a liquid receiver, and 25 is a cooling pressure reduction circuit, which is connected in parallel with a second check valve 26 that is closed during cooling operation and fully opened during defrosting operation, and an expansion valve 27 that operates only during cooling operation. A heat source side heat exchanger 30 functions as a condenser during cooling operation and as an evaporator during defrosting operation, and a precooler 8 is integrally combined with this heat exchanger in a heat exchange relationship. The four-way valve 20 and the three-way valve 9 are controlled by the control device 28. By operating this three-way valve, refrigerant from the compressor 1 is guided to the precooler 8 during cooling operation.
そして、除霜運転開始時は冷媒をバイパス管１２へ導び
き、除霜運転開始から一定時間（数分）経過後に冷媒を
再び予冷器８へ導びくようにしている。At the start of the defrosting operation, the refrigerant is guided to the bypass pipe 12, and after a certain period of time (several minutes) has elapsed since the start of the defrosting operation, the refrigerant is again guided to the precooler 8.
このような構成を有する冷凍装置において、冷却運転時
は四方弁２０を実線状態に設定して、冷媒を実線矢印の
ように流す、この時、圧縮機１から吐出された冷媒は一
旦予冷器８に導びかれ、その後圧縮機１に戻されてこの
圧縮機１の内部（モーター等）を冷却した後、四方弁２
０を介して凝縮器２へ送り込まれる。その後、冷媒は第
１逆止弁２２、受液器２４、膨張弁２７、蒸発器６、四
方弁２０と流れる。この冷却運転によって蒸発器６に霜
が付着した場合は除霜運転を行なう。In a refrigeration system having such a configuration, during cooling operation, the four-way valve 20 is set to the solid line state, and the refrigerant flows as shown by the solid line arrow.At this time, the refrigerant discharged from the compressor 1 is temporarily passed through the precooler 8 After that, it is returned to the compressor 1 to cool the inside of this compressor 1 (motor, etc.), and then the four-way valve 2
0 to the condenser 2. Thereafter, the refrigerant flows through the first check valve 22, the liquid receiver 24, the expansion valve 27, the evaporator 6, and the four-way valve 20. If frost forms on the evaporator 6 during this cooling operation, a defrosting operation is performed.
この除霜運転は四方弁２０を破線状態に設定すると共に
、入口管１０の冷媒がバイパス管１２へ流れるよう三方
弁９を切り換える。すなわち、圧縮機１内の冷媒は予冷
器８に流入されずバイパス管１２を介して圧縮機１に戻
される。その後再び圧縮機１から吐出きれて破線矢印の
ように冷媒が流れ、蒸発器６に付着していた霜を溶かす
、ここで圧縮機１の吐出管１６から吐出された冷媒の温
度は予冷器８によって冷却されていないため、冷却運転
時に吐出管１６から吐出される冷媒の温度よりも高くな
り、これによって蒸発器６に付着していた霜を溶かす時
間（除霜時間）を短かくすることができる。尚、このよ
うに予冷器８に冷媒を流さないようにして冷媒で圧縮機
１の内部が冷却きれない時は数分間であるので圧縮機１
の運転に支障をきたすおそれは少ない。すなわち、この
除霜運転開始から一定時間（数分間）経過後は、三方弁
９を冷却運転の状態に切り換え、圧縮機１内の冷媒をま
ず予冷器８へ流し、冷却された冷媒を圧縮機１へ戻して
この圧縮機１の内部を冷却する。ここで、予冷器８は熱
源側熱交換器３０に一体に組み合せられているため、予
冷器８による放熱で熱源側熱交換器３０内を流れている
冷媒を加熱するようにしたので、液冷媒が圧縮機１に戻
るおそれを少なくできる。すなわち、熱源側熱交換器３
０と一体に予冷器８を設け、除霜運転開始から一定時間
経過後はこの予冷器８へ冷媒を流して、圧縮機１に戻さ
れる冷媒を加熱し液冷媒が圧縮機１に戻りに＜＜シてい
る。In this defrosting operation, the four-way valve 20 is set to the broken line state, and the three-way valve 9 is switched so that the refrigerant in the inlet pipe 10 flows to the bypass pipe 12. That is, the refrigerant in the compressor 1 does not flow into the precooler 8 but is returned to the compressor 1 via the bypass pipe 12. After that, the refrigerant is completely discharged from the compressor 1 and flows as indicated by the broken line arrow, melting the frost that had adhered to the evaporator 6. Here, the temperature of the refrigerant discharged from the discharge pipe 16 of the compressor 1 reaches the precooler 8. Since the refrigerant is not cooled by the refrigerant, the temperature becomes higher than the temperature of the refrigerant discharged from the discharge pipe 16 during cooling operation, thereby shortening the time to melt the frost attached to the evaporator 6 (defrosting time). can. It should be noted that if the refrigerant is not allowed to flow through the precooler 8 in this way, the inside of the compressor 1 will not be completely cooled down by the refrigerant for several minutes.
There is little risk of interfering with driving. That is, after a certain period of time (several minutes) has passed from the start of this defrosting operation, the three-way valve 9 is switched to the cooling operation state, the refrigerant in the compressor 1 is first flowed to the precooler 8, and the cooled refrigerant is passed through the compressor. 1 to cool the inside of this compressor 1. Here, since the precooler 8 is integrally combined with the heat source side heat exchanger 30, the refrigerant flowing inside the heat source side heat exchanger 30 is heated by the heat radiation by the precooler 8, so the liquid refrigerant It is possible to reduce the possibility that the gas will return to the compressor 1. That is, the heat source side heat exchanger 3
A precooler 8 is provided integrally with the compressor 1, and after a certain period of time has elapsed from the start of defrosting operation, the refrigerant is allowed to flow through the precooler 8 to heat the refrigerant returned to the compressor 1, so that the liquid refrigerant returns to the compressor 1. <I'm here.
（ト）発明の効果
以上述べたように、本発明は圧縮機の予冷器に開閉弁の
あるバイパス管を設けたので、この開閉弁の制御によっ
て圧縮機の吐出冷媒の温度を変動させて冷凍能力を可変
−することができる。又、除霜運転時に予冷器をバイパ
スした冷媒を圧縮機から吐出きせて、この吐出冷媒の温
度を冷却運転時の吐出冷媒の温度よりも高くしたから除
霜時間を短かくすることができる。(G) Effects of the Invention As described above, the present invention provides a bypass pipe with an on-off valve in the precooler of the compressor, so the temperature of the refrigerant discharged from the compressor is varied by controlling the on-off valve, and the refrigerant is refrigerated. Capabilities can be changed. Furthermore, since the refrigerant that bypassed the precooler is discharged from the compressor during the defrosting operation, and the temperature of the discharged refrigerant is made higher than the temperature of the discharged refrigerant during the cooling operation, the defrosting time can be shortened.
又、四方弁によって冷却運転時の冷媒の流れ方向と除霜
運転時の冷媒の流れ方向とを逆にして、熱源側熱交換器
と予冷器とを熱交換関係に配置し、除霜運転開始から一
定時間経過後は予冷器に冷媒を流すようにしたので、こ
の除霜運転時に液冷媒が圧縮機へ戻りに＜＜シて、液圧
縮を防止できる。In addition, the flow direction of the refrigerant during cooling operation and the flow direction of refrigerant during defrosting operation are reversed using a four-way valve, and the heat source side heat exchanger and precooler are placed in a heat exchange relationship, and defrosting operation is started. Since the refrigerant is allowed to flow into the precooler after a certain period of time has elapsed, the liquid refrigerant returns to the compressor during this defrosting operation, thereby preventing liquid compression.
第１図は本発明の一実施例を示す冷凍装置の冷媒回路図
、第２図は本発明の他の実施例を示す冷凍装置の冷媒回
路図である。
１・・・圧縮機、 ８・・・予冷器、 ９・・・開閉弁
、１２・・・バイパス管、 ２０・・・四方弁、 ２８
・・・制御装置、 ３０・・・熱源側熱交換器。FIG. 1 is a refrigerant circuit diagram of a refrigeration system showing one embodiment of the present invention, and FIG. 2 is a refrigerant circuit diagram of a refrigeration system showing another embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Compressor, 8... Precooler, 9... On-off valve, 12... Bypass pipe, 20... Four-way valve, 28
...Control device, 30...Heat source side heat exchanger.
Claims (1)
この予冷器を側路するバイパス管を備え、このバイパス
管に開閉弁を設けたことを特徴とする冷凍装置。 ２）予冷器を有する圧縮機を備え、冷却運転と除霜運転
とが行なえる冷凍装置において、この予冷器を側路する
バイパス管と、このバイパス管に設けられ前記除霜運転
時に開放される開閉弁とを備えたことを特徴とする冷凍
装置。 ３）冷却運転時の冷媒の流れ方向と除霜運転時の冷媒の
流れ方向とを逆にするための四方弁を設けた請求項２記
載の冷凍装置。 ４）熱源側熱交換器と予冷器とを熱交換関係に配置する
と共に、開閉弁を除霜運転開始から一定時間経過後に閉
塞させる制御装置を備えた請求項２記載の冷凍装置。[Claims] 1) In a refrigeration system equipped with a compressor having a precooler,
A refrigeration system comprising a bypass pipe bypassing the precooler, and an on-off valve provided on the bypass pipe. 2) In a refrigeration system equipped with a compressor having a precooler and capable of performing a cooling operation and a defrosting operation, a bypass pipe bypassing the precooler and a bypass pipe provided in the bypass pipe are opened during the defrosting operation. A refrigeration device characterized by comprising an on-off valve. 3) The refrigeration system according to claim 2, further comprising a four-way valve for reversing the flow direction of the refrigerant during the cooling operation and the flow direction of the refrigerant during the defrosting operation. 4) The refrigeration system according to claim 2, further comprising a control device that arranges the heat source side heat exchanger and the precooler in a heat exchange relationship and closes the on-off valve after a certain period of time has elapsed from the start of the defrosting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18480788A JPH0233571A (en) | 1988-07-25 | 1988-07-25 | Refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18480788A JPH0233571A (en) | 1988-07-25 | 1988-07-25 | Refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233571A true JPH0233571A (en) | 1990-02-02 |
Family
ID=16159637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18480788A Pending JPH0233571A (en) | 1988-07-25 | 1988-07-25 | Refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233571A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579709A (en) * | 1991-09-24 | 1993-03-30 | Sanyo Electric Co Ltd | Refrigerator |
| EP2087296A1 (en) * | 2006-11-08 | 2009-08-12 | Carrier Corporation | Heat pump with intercooler |
| WO2009131083A1 (en) * | 2008-04-22 | 2009-10-29 | ダイキン工業株式会社 | Refrigeration device |
| US8327662B2 (en) | 2007-11-30 | 2012-12-11 | Daikin Industries, Ltd. | Refrigeration apparatus |
| CN105674647A (en) * | 2016-03-21 | 2016-06-15 | 珠海格力电器股份有限公司 | Defrosting control method for variable-capacity compressor system |
-
1988
- 1988-07-25 JP JP18480788A patent/JPH0233571A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579709A (en) * | 1991-09-24 | 1993-03-30 | Sanyo Electric Co Ltd | Refrigerator |
| EP2087296A1 (en) * | 2006-11-08 | 2009-08-12 | Carrier Corporation | Heat pump with intercooler |
| EP2087296A4 (en) * | 2006-11-08 | 2012-04-25 | Carrier Corp | Heat pump with intercooler |
| US8327662B2 (en) | 2007-11-30 | 2012-12-11 | Daikin Industries, Ltd. | Refrigeration apparatus |
| WO2009131083A1 (en) * | 2008-04-22 | 2009-10-29 | ダイキン工業株式会社 | Refrigeration device |
| JP2009264605A (en) * | 2008-04-22 | 2009-11-12 | Daikin Ind Ltd | Refrigerating device |
| CN102016456A (en) * | 2008-04-22 | 2011-04-13 | 大金工业株式会社 | Refrigeration device |
| AU2009239038B2 (en) * | 2008-04-22 | 2012-05-17 | Daikin Industries, Ltd. | Refrigeration apparatus |
| CN105674647A (en) * | 2016-03-21 | 2016-06-15 | 珠海格力电器股份有限公司 | Defrosting control method for variable-capacity compressor system |
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