JPH05180182A - Refrigerating device - Google Patents
Refrigerating deviceInfo
- Publication number
- JPH05180182A JPH05180182A JP99092A JP99092A JPH05180182A JP H05180182 A JPH05180182 A JP H05180182A JP 99092 A JP99092 A JP 99092A JP 99092 A JP99092 A JP 99092A JP H05180182 A JPH05180182 A JP H05180182A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- refrigerant injection
- injection hole
- compression chamber
- capillary tube
- 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
Landscapes
- Rotary Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は液インジェクション機
能を有するスクロール圧縮機を使った冷凍装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration system using a scroll compressor having a liquid injection function.
【０００２】[0002]
【従来の技術】図８は例えば特開昭６０−１６６７７８
号公報に示された従来のスクロール圧縮機とそれを備え
た冷凍装置を示すものであり、図において、１は台板１
ａの下面に渦巻突起１ｂを有する固定スクロールで、中
心部に吐出口１ｃが設けられている。２は台板２ａの上
面に渦巻突起２ｂを有し、渦巻突起１ｂと組合されて圧
縮室３を形成する揺動スクロールで、中心部の下方に揺
動軸部２ｃが設けられている。５は固定スクロール１の
外周に設けられた吸入口、６は主軸で、上端に偏心穴６
ａが設けられ、揺動軸部２ｃと嵌合している。７は揺動
スクロール２及び主軸を支承する上部軸受支工、８は主
軸を支承し、密封容器９に固着された下部軸受支工、１
０は主軸６に固定されたロータ１０ａと下部軸受支工８
に固定されたステータ１０ｂからなるモータである。１
１は密閉容器９に固定され冷媒を容器内に取り入れる吸
入管１２は、密閉容器９に固定され、吐出口１ｃより冷
媒を容器外部へ吐き出す吐出管であり、冷媒配管を介し
冷凍サイクルを構成する凝縮器１３、膨張弁１４、蒸発
器１５と撃がっている。１６は、台板１ａに設けられた
冷媒噴射孔で一端は圧縮室３に開口し、他端はフランジ
部１７ａが固定スクロール１の上面に固定され密閉容器
９を気密に貫通する冷媒噴射用配管１７に連通し、さら
に毛細管１８、電磁弁１９を介して凝縮器１３と膨張弁
１４を結ぶ配管に撃がっている。2. Description of the Related Art FIG. 8 shows, for example, JP-A-60-166778.
1 shows a conventional scroll compressor shown in Japanese Patent Publication and a refrigerating apparatus including the same, in which 1 is a base plate 1
A fixed scroll having a spiral protrusion 1b on the lower surface of a, and a discharge port 1c provided at the center. Reference numeral 2 denotes an orbiting scroll which has a spiral protrusion 2b on the upper surface of a base plate 2a and which is combined with the spiral protrusion 1b to form a compression chamber 3. The swing scroll 2c is provided below the central portion. 5 is a suction port provided on the outer periphery of the fixed scroll 1, 6 is a main shaft, and an eccentric hole 6 is provided at the upper end.
a is provided and fitted with the swing shaft portion 2c. 7 is an upper bearing support for supporting the orbiting scroll 2 and the main shaft, 8 is a lower bearing support for supporting the main shaft and fixed to a hermetically sealed container 9, 1
0 is a rotor 10a fixed to the main shaft 6 and a lower bearing support 8
The motor includes a stator 10b fixed to the motor. 1
Reference numeral 1 denotes a suction pipe 12 fixed to the closed container 9 for taking the refrigerant into the container. The suction pipe 12 is a discharge pipe fixed to the closed container 9 for discharging the refrigerant from the discharge port 1c to the outside of the container, and constitutes a refrigeration cycle through the refrigerant pipe. It hits the condenser 13, expansion valve 14, and evaporator 15. Reference numeral 16 is a refrigerant injection hole provided in the base plate 1a, one end of which is opened to the compression chamber 3 and the other end of which a flange portion 17a is fixed to the upper surface of the fixed scroll 1 and which is a refrigerant injection pipe that hermetically penetrates the hermetic container 9. The pipe connecting to the condenser 17 and the expansion valve 14 is struck by a capillary 18 and a solenoid valve 19.
【０００３】次に動作について説明する。モータ１０が
通電されるとロータ１０ａと共に主軸６が回転し、揺動
スクロール２を駆動する。これにより吸入管１１より冷
媒が密閉容器９内へ取り込まれ実線矢印で示すように吸
入管１１→吸入口５→圧縮室３→吐出口１ｃ→吐出管１
２と流れ、密閉容器９外へ高圧となって吐出される。こ
の吐出された冷媒は凝縮器１３で冷却され液化し、さら
に、膨張弁１４で減圧され、蒸発器１５で受熱し、気化
した後、再び吸入管１１を通って密閉容器９内へ戻る。
この間、凝縮器１３で液化した高圧の冷媒液の一部は毛
細管１８→冷媒噴射用配管１７→冷媒噴射孔１６を通っ
て圧縮室３の高温の圧縮過程の冷媒ガス中に流入し、冷
媒ガスの温度低下に使われる。Next, the operation will be described. When the motor 10 is energized, the main shaft 6 rotates together with the rotor 10a and drives the orbiting scroll 2. As a result, the refrigerant is taken into the closed container 9 from the suction pipe 11, and as shown by a solid arrow, the suction pipe 11 → the suction port 5 → the compression chamber 3 → the discharge port 1c → the discharge pipe 1
2 and the high pressure is discharged to the outside of the closed container 9. The discharged refrigerant is cooled and liquefied by the condenser 13, further decompressed by the expansion valve 14, heat-received by the evaporator 15 and vaporized, and then returns to the inside of the closed container 9 through the suction pipe 11.
During this time, a part of the high-pressure refrigerant liquid liquefied in the condenser 13 flows into the refrigerant gas in the high-temperature compression process of the compression chamber 3 through the capillary tube 18 → refrigerant injection pipe 17 → refrigerant injection hole 16, Used to lower the temperature of.
【０００４】[0004]
【発明が解決しようとする課題】従来の冷凍装置は以上
のように構成されているので、冷媒噴射孔１ｂ、冷媒噴
射用配管等の圧縮室３と毛細管１８（絞り装置）との間
の容積が大きく、これが圧縮室の死容積となる為、圧縮
した冷媒ガスを低圧側へ漏らし、再膨張による損失が大
きくなり効率低下を招くなどの問題点があった。Since the conventional refrigeration system is configured as described above, the volume between the compression chamber 3 such as the refrigerant injection hole 1b and the refrigerant injection pipe and the capillary tube 18 (throttle device). Since this is the dead volume of the compression chamber, the compressed refrigerant gas leaks to the low pressure side, resulting in a large loss due to re-expansion, resulting in a decrease in efficiency.
【０００５】この発明は上記のような問題点を解消する
為になされたもので、冷媒噴射孔を備えたスクロール圧
縮機を用いた冷凍装置の効率向上を図ることを目的とす
る。The present invention has been made to solve the above problems, and an object thereof is to improve the efficiency of a refrigeration system using a scroll compressor having a refrigerant injection hole.
【０００６】[0006]
【課題を解決するための手段】この発明に係わる冷凍装
置はスクロール圧縮機の冷媒噴射孔に凝縮器下流から液
状冷媒を導入する為の毛細管を直接取り付けるか、ある
いはそれに準ずる接続管を取り付けたものである。A refrigeration system according to the present invention has a scroll compressor having a refrigerant injection hole directly attached with a capillary tube for introducing a liquid refrigerant from a downstream side of a condenser, or with a connection tube equivalent thereto. Is.
【０００７】更に、この発明に係わる冷凍装置はスクロ
ール圧縮機の冷媒噴射孔、あるいは冷媒噴射用配管との
接続部に圧縮室からの流れを規制する弁装置を設けたも
のである。Further, in the refrigerating apparatus according to the present invention, a valve device for restricting the flow from the compression chamber is provided at the refrigerant injection hole of the scroll compressor or at the connection portion with the refrigerant injection pipe.
【０００８】[0008]
【作用】この発明における冷凍装置は冷媒噴射用配管を
毛細管で代用することにより、その配管内容積が大幅に
減少するので再膨張損失が減り、簡単な構造で効率向上
を図れる。In the refrigerating apparatus of the present invention, the refrigerant injection pipe is replaced by a capillary pipe, so that the internal volume of the pipe is greatly reduced, the re-expansion loss is reduced, and the efficiency can be improved with a simple structure.
【０００９】また、この発明における冷凍装置は、スク
ロール圧縮機の弁装置を取り付けたことにより圧縮室か
ら冷媒噴射用配管内の空間への逆流がなくなり、それに
よる再膨張損失を排除出来るので効率向上が図れる。In the refrigeration system of the present invention, since the valve device of the scroll compressor is attached, there is no backflow from the compression chamber to the space in the pipe for injecting the refrigerant, and the re-expansion loss caused thereby can be eliminated, so that the efficiency is improved. Can be achieved.
【００１０】[0010]
実施例１．以下、この発明の一実施例を図について説明
する。図１において、１８は凝縮器１３と膨張弁１４と
の間の高圧の液状冷媒を減圧し導入する為に導かれた毛
細管であり凝縮器１３と膨張弁１４を結ぶ配管から分岐
して取り出され電磁弁を通った後、２つに分かれ密閉容
器９に設けられた穴２０を通って固定スクロール１の台
板１ａに設けられた２つの冷媒噴射孔１６にそれぞれ直
接挿入されている。この毛細管１８は穴２０の部分で密
閉容器９にロー付により固定されている。また、冷媒噴
射孔１６はその断面積が毛細管１８と同程度と従来に比
べ小さく、毛細管１８との接続部にはその内面に溝２１
が形成され、その中にＯリング２２が挿入されていて冷
媒噴射孔１６及び毛細管１８からなる液状冷媒の通路と
密閉容器９内の空間とを隔絶している。その他の構成に
ついては従来と同様であるので説明を省略する。Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 18 denotes a capillary tube which is introduced to decompress and introduce the high-pressure liquid refrigerant between the condenser 13 and the expansion valve 14, which is branched and taken out from a pipe connecting the condenser 13 and the expansion valve 14. After passing through the electromagnetic valve, they are directly inserted into the two refrigerant injection holes 16 provided in the base plate 1a of the fixed scroll 1 through the two holes 20 provided in the closed container 9. The capillary tube 18 is fixed to the closed container 9 at the hole 20 by brazing. The cross-sectional area of the refrigerant injection hole 16 is about the same as that of the capillary tube 18, which is smaller than the conventional one, and the groove 21 is formed on the inner surface of the connection portion with the capillary tube 18.
Is formed, and an O-ring 22 is inserted therein to separate the liquid refrigerant passage formed of the refrigerant injection hole 16 and the capillary tube 18 from the space inside the closed container 9. The other configurations are the same as the conventional ones, and thus the description thereof is omitted.
【００１１】次に動作について説明する。冷凍サイクル
上の動作については従来と同様であるので説明を省略す
る。図２はスクロール圧縮機の圧縮過程を９０°毎１回
転について示したものであり、図中、１６は固定スクロ
ール１の対象位置に設けられた冷媒噴射孔、３ａは外方
の第１室、３ｂは内方の第２室を示す。冷媒噴射孔１６
は（ｂ）の位相から（ｄ）の位相を若干過ぎるところま
で開口した後、渦巻突起（２ｂ）に遮ヘイされ、第２室
（３ｂ）から第１室（３ａ）へ移る。（（ａ）の状態） ここで、圧縮室３内の圧力変化を図３を用いて説明す
る。縦軸は圧力変化、横軸は図２と同位相を示す回転角
を表す。Ｐ1 は圧縮機の吐出圧力、Ｐ2 は吸入圧力であ
る。実線で示す圧力変化は冷媒噴射孔を遮ヘイした場合
のものである。次に冷媒噴射孔を備えた場合のものを図
４も加え説明する。図は縦軸に圧力をとり、図３の条件
下での凝縮器、圧縮室、従来の冷媒噴射用配管内空間の
圧力を示したもので、Ｐ3 は凝縮器圧力、Ｐ4 、Ｐ5 は
冷媒噴射孔連通時の圧縮室圧力変化値、Ｐ6 、Ｐ7 は冷
媒噴射用配管内圧力変化値を示す。冷媒噴射用配管内の
圧力Ｐ6 がＰ3 ＞Ｐ6 ＞Ｐ4 となるのは毛細管等の絞り
装置を通じ、高圧の液状冷媒を減圧し圧縮室３へ流入さ
せることによるものである。圧縮室の内圧は回転角が進
むにつれ上昇してゆき冷媒噴射孔連通直後の圧力Ｐ4 は
渦巻突起に遮ヘイされる直前でＰ5 まで昇圧し、冷媒噴
射用配管内の圧力Ｐ7 はその影響を受け昇圧し、圧縮室
内圧力Ｐ5 と殆ど同じになる。前述した様に図２の
（ｄ）→（ｂ）に移行する際、冷媒噴射孔は第２室（圧
力Ｐ5 ）から第１室（圧力Ｐ4 ）に開口する室が切り変
わるので、Ｐ7 》Ｐ4 となり、○ロで示す冷媒噴射用配
管内空間から第１室への再膨張が発生する。高圧ガスが
一気に低圧の圧縮室に流入する従来の再膨張損失は図３
の斜線部○ハで表される。本発明は冷媒噴射孔に直接毛
細管を接続しているので、従来の冷媒噴射用配管のよう
に圧縮室と高圧の液状冷媒を導入する絞り装置の間に大
きな容積が存在しないことから上述した再膨張損失は小
さく押さえることが出来る。（同図○ニで示す。）Next, the operation will be described. Since the operation on the refrigeration cycle is the same as the conventional one, the description is omitted. FIG. 2 shows the compression process of the scroll compressor for every 90 ° rotation. In the figure, 16 is a refrigerant injection hole provided at a target position of the fixed scroll 1, 3a is an outer first chamber, 3b shows the inner 2nd chamber. Refrigerant injection hole 16
After opening from the phase of (b) to a position slightly beyond the phase of (d), is blocked by the spiral protrusion (2b) and moves from the second chamber (3b) to the first chamber (3a). (State of (a)) Here, the pressure change in the compression chamber 3 will be described with reference to FIG. The vertical axis represents the pressure change, and the horizontal axis represents the rotation angle showing the same phase as in FIG. P 1 is the compressor discharge pressure, and P 2 is the suction pressure. The pressure change shown by the solid line is when the refrigerant injection hole is blocked. Next, the case where the refrigerant injection hole is provided will be described with reference to FIG. The figure shows the pressure in the vertical axis and shows the pressures in the condenser, the compression chamber, and the space inside the conventional refrigerant injection pipe under the conditions of FIG. 3, where P 3 is the condenser pressure, P 4 and P 5 Indicates a pressure change value of the compression chamber when communicating with the refrigerant injection holes, and P 6 and P 7 indicate pressure change values of the refrigerant injection pipe. The pressure P 6 in the refrigerant injection pipe becomes P 3 > P 6 > P 4 because the high-pressure liquid refrigerant is decompressed and flowed into the compression chamber 3 through the expansion device such as a capillary tube. The internal pressure of the compression chamber rises as the rotation angle advances, and the pressure P 4 immediately after the communication of the refrigerant injection hole increases to P 5 immediately before being blocked by the spiral projection, and the pressure P 7 in the refrigerant injection pipe becomes The pressure is increased due to the influence and becomes almost the same as the pressure P 5 in the compression chamber. As described above, when shifting from (d) to (b) in FIG. 2, the refrigerant injection hole is switched from the second chamber (pressure P 5 ) to the first chamber (pressure P 4 ). 7 "P 4, and the re-expansion from the pipe in the space for the refrigerant injection shown by ○ b into the first chamber occurs. The conventional re-expansion loss in which high-pressure gas suddenly flows into the low-pressure compression chamber is shown in Fig. 3.
It is represented by the shaded circles. Since the present invention directly connects the capillary tube to the refrigerant injection hole, there is no large volume between the compression chamber and the expansion device for introducing the high-pressure liquid refrigerant as in the conventional refrigerant injection pipe. Expansion loss can be kept small. (Indicated by ○ in the figure.)
【００１２】実施例２．図５に本発明における他の実施
例を示す。図において、２３は固定スクロール１にボル
トなどによって固定されたフランジで、軸方向に貫通
し、冷媒噴射孔１６と分岐配管２５を連通する連通孔２
４を有する。分岐配管２５は毛細管で形成されていて、
密閉容器９の外部では１本になって取り出されるが内部
では分岐し、複数の上記フランジに固定されている。密
閉容器外に取り出された１本の分岐配管２５は液状冷媒
を導入する外部の毛細管１８に接続される。その他の部
分については従来と同様であるので説明を省略する。動
作については実施例１と同じであるので省略するが、外
部配管の取り付けが簡単でコンパクトになる特有の効果
を有する。尚、ここでは分岐配管２５として毛細管を挙
げたが、穴径即ち空間的に減少出来れば良く、外観とし
ての自由度はある。Example 2. FIG. 5 shows another embodiment of the present invention. In the figure, reference numeral 23 denotes a flange fixed to the fixed scroll 1 by a bolt or the like, which is a communication hole 2 which axially penetrates and which connects the refrigerant injection hole 16 and the branch pipe 25.
Have four. The branch pipe 25 is formed of a capillary tube,
It is taken out as one outside the closed container 9, but is branched inside and is fixed to the plurality of flanges. One branch pipe 25 taken out of the closed container is connected to an external capillary tube 18 for introducing a liquid refrigerant. The other parts are the same as the conventional ones, and the description thereof will be omitted. The operation is omitted because it is the same as that of the first embodiment, but there is a unique effect that the external pipe is easily attached and compact. Although a capillary tube is used as the branch pipe 25 here, there is a degree of freedom in appearance as long as the hole diameter, that is, the space can be reduced.
【００１３】実施例３．上記実施例では圧縮室の昇圧に
伴ない圧縮室から冷媒噴射配管へ逆流する場合について
示したが、その逆流を阻止しても同様の効果を奏する。
図６は他の実施例を示すもので、図において２６は固定
スクロール台板１ａの渦巻とは反対面に設け、底面の端
側に冷媒噴射孔１６が開口する窪部、１７ａはこの窪部
２６に嵌入するボス部２７を有し、中央に冷媒噴射孔１
６と冷媒噴射用配管１７を連通する連通孔２４を有する
フランジである。ボス部２７の下面には連通孔２４を覆
うように弁２８が設けられている。この弁２８は下方へ
動く時、冷媒噴射孔１６を塞がないように位置決めさ
れ、固定ピンにてボス部に保持されている。その他につ
いては従来と同様であるので説明を省略する。Embodiment 3. In the above-described embodiment, the case where the backflow from the compression chamber to the refrigerant injection pipe due to the pressure rise of the compression chamber has been described, but the same effect can be obtained even if the backflow is blocked.
FIG. 6 shows another embodiment. In the figure, reference numeral 26 is a recessed portion provided on the surface of the fixed scroll base plate 1a opposite to the spiral, and the refrigerant injection hole 16 is opened at the end of the bottom surface, and 17a is this recessed portion. 26 has a boss portion 27 that fits into the cooling pipe 26, and has the coolant injection hole 1 in the center.
6 is a flange having a communication hole 24 that communicates 6 with the refrigerant injection pipe 17. A valve 28 is provided on the lower surface of the boss portion 27 so as to cover the communication hole 24. The valve 28 is positioned so as not to block the refrigerant injection hole 16 when it moves downward, and is held by the boss portion by the fixing pin. Others are the same as the conventional ones, and thus the description thereof is omitted.
【００１４】次に図６、図７を用い動作について説明す
る。図において、実線矢印は冷媒の流れを示す。図７は
冷媒噴射孔１６は低圧の圧縮室３に連通した直後の状態
で、冷媒噴射用配管１７内の圧力Ｐ6 の方が圧縮室３の
圧力Ｐ4 より高いので弁２８が下方に動き液状冷媒が圧
縮室に入り込む。図６は圧縮室３が昇圧し、冷媒噴射孔
１６と連通しなくなる直前の状態で、圧縮室３の圧力Ｐ
5 の方が冷媒噴射用配管１７内の圧力より高い為、弁２
８が上方へ押付けられ、連通路２４を塞ぎ、冷媒噴射用
配管への逆流を阻止する。冷媒噴射孔１６と窪部２６と
ボス部２７にはさまれた僅かな空間による再膨張損失は
残るものの従来に比べ再膨張損失大幅に低減する。Next, the operation will be described with reference to FIGS. 6 and 7. In the figure, solid arrows indicate the flow of the refrigerant. In FIG. 7, the refrigerant injection hole 16 is in a state immediately after communicating with the low pressure compression chamber 3, and since the pressure P 6 in the refrigerant injection pipe 17 is higher than the pressure P 4 in the compression chamber 3, the valve 28 moves downward. Liquid refrigerant enters the compression chamber. In FIG. 6, the pressure P in the compression chamber 3 is increased immediately before the pressure in the compression chamber 3 is increased and communication with the refrigerant injection hole 16 is lost.
Since 5 is higher than the pressure in the refrigerant injection pipe 17, the valve 2
8 is pressed upward to block the communication passage 24 and prevent backflow to the refrigerant injection pipe. Although a re-expansion loss due to a slight space sandwiched between the refrigerant injection hole 16, the recess 26 and the boss 27 remains, the re-expansion loss is significantly reduced as compared with the conventional case.
【００１５】[0015]
【発明の効果】以上のように、この発明によれば毛細管
を冷媒噴射孔に直接取付けたので、再膨張損失低減によ
り冷凍装置の効率向上を図ることが出来る。As described above, according to the present invention, since the capillaries are directly attached to the refrigerant injection holes, the efficiency of the refrigeration system can be improved by reducing the re-expansion loss.
【００１６】さらに別の発明によれば、弁装置を冷媒噴
射孔１６近傍に配置したので再膨張損失の大幅低減によ
り冷凍装置の効率向上を図ることが出来る。According to still another aspect of the invention, since the valve device is arranged in the vicinity of the refrigerant injection hole 16, the efficiency of the refrigeration system can be improved by greatly reducing the re-expansion loss.
【図１】この発明の一実施例を示す圧縮部近傍の断面図
である。FIG. 1 is a sectional view of the vicinity of a compression section showing an embodiment of the present invention.
【図２】スクロール圧縮機の動作原理図である。FIG. 2 is an operation principle diagram of a scroll compressor.
【図３】この発明の効果を示す圧縮室内圧力変化図であ
る。FIG. 3 is a compression chamber pressure change diagram showing the effect of the present invention.
【図４】この発明の圧力分布を示す図である。FIG. 4 is a diagram showing a pressure distribution of the present invention.
【図５】この発明の別の発明を示す圧縮部近傍の断面図
である。FIG. 5 is a cross-sectional view of the vicinity of a compression section showing another invention of the present invention.
【図６】この発明の別の発明を示す要部断面図である。FIG. 6 is a cross-sectional view of essential parts showing another invention of the present invention.
【図７】この発明の別の発明を示す要部断面図である。FIG. 7 is a cross-sectional view of essential parts showing another invention of the present invention.
【図８】従来のスクロール圧縮機の断面図及びそれを使
った冷凍装置を示す図である。FIG. 8 is a cross-sectional view of a conventional scroll compressor and a view showing a refrigerating apparatus using the same.
１ 固定スクロール ２ 揺動スクロール ３ 圧縮室 ９ 密閉容器 １３ 凝縮器 １４ 膨張弁 １５ 蒸発器 １６ 冷媒噴射孔 １７ 冷媒噴射用配管 １８ 毛細管 ２８ 弁 DESCRIPTION OF SYMBOLS 1 Fixed scroll 2 Oscillating scroll 3 Compression chamber 9 Airtight container 13 Condenser 14 Expansion valve 15 Evaporator 16 Refrigerant injection hole 17 Refrigerant injection pipe 18 Capillary 28 Valve
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 美保子 尼崎市塚口本町８丁目１番１号 三菱電機 株式会社中央研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mihoko Tanaka 8-1-1 Tsukaguchihonmachi, Amagasaki City Mitsubishi Electric Corporation Central Research Laboratory
Claims (2)
ロールと、台板の上方に渦巻突起を有する揺動スクロー
ルと、上記渦巻同志を組合せることにより形成される圧
縮室と、上記固定スクロールの台板部に設けられ上記圧
縮室に通じる冷媒噴射孔と、これらの圧縮要素を収容す
る密閉容器を有するスクロール圧縮機が、凝縮器、膨張
弁、蒸発器と連結し、上記凝縮器と膨張弁の間の高圧の
液状冷媒を上記冷媒噴射孔に導入する通路手段が形成さ
れている冷凍装置に於いて、上記通路手段として、上記
冷媒噴射孔に直接毛細管を接続したことを特徴とする冷
凍装置。1. A fixed scroll having a spiral protrusion below the base plate, an orbiting scroll having a spiral protrusion above the base plate, a compression chamber formed by combining the spirals, and the fixed scroll. A scroll compressor having a refrigerant injection hole provided in the base plate portion of the compressor and communicating with the compression chamber, and a hermetic container containing these compression elements is connected to a condenser, an expansion valve, and an evaporator, and expands with the condenser. In a refrigerating apparatus in which a passage means for introducing a high-pressure liquid refrigerant between the valves into the refrigerant injection hole is formed, a refrigeration characterized in that a capillary tube is directly connected to the refrigerant injection hole as the passage means. apparatus.
と上記高圧の液状冷媒を導入する通路との接続部あるい
は、その径路で圧縮室に近い部分に、上記圧縮室から上
記通路へ向かう冷媒の流れを規制する弁装置を備えたス
クロール圧縮機を有することを特徴とする冷凍装置。2. A connecting portion between the refrigerant injection hole provided in the base plate portion and a passage for introducing the high-pressure liquid refrigerant, or a portion of the path near the compression chamber from the compression chamber to the passage. A refrigeration system having a scroll compressor provided with a valve device that regulates a flow of an oncoming refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP99092A JPH05180182A (en) | 1992-01-07 | 1992-01-07 | Refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP99092A JPH05180182A (en) | 1992-01-07 | 1992-01-07 | Refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05180182A true JPH05180182A (en) | 1993-07-20 |
Family
ID=11489039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP99092A Pending JPH05180182A (en) | 1992-01-07 | 1992-01-07 | Refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05180182A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09100787A (en) * | 1995-06-07 | 1997-04-15 | Copeland Corp | Scroll type compressor with liquid injection mechanism |
| US7371057B2 (en) | 2003-07-26 | 2008-05-13 | Lg Electronics Inc. | Variable capacity scroll compressor |
| US7513753B2 (en) | 2003-07-26 | 2009-04-07 | Lg Electronics Inc. | Variable capacity scroll compressor |
| CN102011733A (en) * | 2009-09-08 | 2011-04-13 | 丹佛斯涡旋技术有限责任公司 | Injection tubes for injection of fluid into a scroll compressor |
| CN102317630A (en) * | 2008-12-19 | 2012-01-11 | 丹佛斯商业压缩机公司 | Scroll-type refrigerator compressor |
| JP2013113212A (en) * | 2011-11-29 | 2013-06-10 | Mitsubishi Electric Corp | Scroll compressor and freezing cycle device |
| KR101278337B1 (en) * | 2011-10-04 | 2013-06-25 | 엘지전자 주식회사 | A scroll compressor and an air conditioner including the same |
| JP2015014195A (en) * | 2013-07-03 | 2015-01-22 | 日立アプライアンス株式会社 | Refrigeration cycle |
| JP2015113817A (en) * | 2013-12-16 | 2015-06-22 | 三菱重工業株式会社 | Scroll type compressor |
| JP2016011620A (en) * | 2014-06-27 | 2016-01-21 | 三菱電機株式会社 | Scroll compressor |
| JP2017194064A (en) * | 2017-07-19 | 2017-10-26 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Refrigeration cycle |
| CN108603502A (en) * | 2016-02-16 | 2018-09-28 | 三菱电机株式会社 | Screw compressor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0343691A (en) * | 1989-07-07 | 1991-02-25 | Mitsubishi Electric Corp | Scroll compressor |
-
1992
- 1992-01-07 JP JP99092A patent/JPH05180182A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0343691A (en) * | 1989-07-07 | 1991-02-25 | Mitsubishi Electric Corp | Scroll compressor |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09100787A (en) * | 1995-06-07 | 1997-04-15 | Copeland Corp | Scroll type compressor with liquid injection mechanism |
| US7371057B2 (en) | 2003-07-26 | 2008-05-13 | Lg Electronics Inc. | Variable capacity scroll compressor |
| US7513753B2 (en) | 2003-07-26 | 2009-04-07 | Lg Electronics Inc. | Variable capacity scroll compressor |
| CN102317630A (en) * | 2008-12-19 | 2012-01-11 | 丹佛斯商业压缩机公司 | Scroll-type refrigerator compressor |
| CN102317630B (en) * | 2008-12-19 | 2015-05-20 | 丹佛斯商业压缩机公司 | Scroll-type refrigerator compressor |
| CN102011733A (en) * | 2009-09-08 | 2011-04-13 | 丹佛斯涡旋技术有限责任公司 | Injection tubes for injection of fluid into a scroll compressor |
| US8997518B2 (en) | 2011-10-04 | 2015-04-07 | Lg Electronics Inc. | Scroll compressor and air conditioner including the same |
| KR101278337B1 (en) * | 2011-10-04 | 2013-06-25 | 엘지전자 주식회사 | A scroll compressor and an air conditioner including the same |
| JP2013113212A (en) * | 2011-11-29 | 2013-06-10 | Mitsubishi Electric Corp | Scroll compressor and freezing cycle device |
| JP2015014195A (en) * | 2013-07-03 | 2015-01-22 | 日立アプライアンス株式会社 | Refrigeration cycle |
| JP2015113817A (en) * | 2013-12-16 | 2015-06-22 | 三菱重工業株式会社 | Scroll type compressor |
| JP2016011620A (en) * | 2014-06-27 | 2016-01-21 | 三菱電機株式会社 | Scroll compressor |
| CN105317676A (en) * | 2014-06-27 | 2016-02-10 | 三菱电机株式会社 | Vortex compressor |
| CN108603502A (en) * | 2016-02-16 | 2018-09-28 | 三菱电机株式会社 | Screw compressor |
| CN108603502B (en) * | 2016-02-16 | 2020-09-18 | 三菱电机株式会社 | Scroll compressor having a plurality of scroll members |
| JP2017194064A (en) * | 2017-07-19 | 2017-10-26 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Refrigeration cycle |
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