JP2543036B2 - Scroll type compressor - Google Patents
Scroll type compressorInfo
- Publication number
- JP2543036B2 JP2543036B2 JP61090641A JP9064186A JP2543036B2 JP 2543036 B2 JP2543036 B2 JP 2543036B2 JP 61090641 A JP61090641 A JP 61090641A JP 9064186 A JP9064186 A JP 9064186A JP 2543036 B2 JP2543036 B2 JP 2543036B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- fixed scroll
- scroll
- lubricating oil
- partition plate
- 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.)
- Expired - Lifetime
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- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、冷凍空調用，冷蔵庫用等の冷媒圧縮機とし
て用いられるスクロール型圧縮機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll compressor used as a refrigerant compressor for refrigeration and air conditioning, refrigerators and the like.
従来の技術 第６図から第９図を参照して、その基本的構成及び潤
滑法について説明する。なお、説明を容易にするため、
作動ガスの流れ方法を示す実線矢印と、潤滑油の流れ方
向を示す破線矢印を挿入した。第６図は従来の空調機用
密閉形スクロール圧縮機の全体構成図を示す。該圧縮機
は圧縮要素部である固定スクロール１と旋回スクロール
２の両スクロールと、旋回スクロール２の自転を防止す
る自転防止部材３及び主軸、これを支える三個の軸受
部、即ち、旋回軸受５と主軸受６及び補助軸受７と、電
動機8,固定スクロール１を固定する静止部材のブロック
９などから構成され、これらの機械部品は密閉容器10の
内部に収納される。2. Description of the Related Art The basic structure and lubrication method will be described with reference to FIGS. 6 to 9. In addition, in order to facilitate the explanation,
A solid arrow indicating the flow of the working gas and a broken arrow indicating the flow direction of the lubricating oil are inserted. FIG. 6 shows an overall configuration diagram of a conventional hermetic scroll compressor for an air conditioner. The compressor includes both fixed scroll 1 and orbiting scroll 2 which are compression element parts, a rotation preventing member 3 for preventing rotation of the orbiting scroll 2 and a main shaft, and three bearing parts for supporting the main shaft, that is, an orbiting bearing 5. And a main bearing 6 and an auxiliary bearing 7, a block 8 of a stationary member for fixing the electric motor 8 and the fixed scroll 1, and the like. These mechanical parts are housed in a closed container 10.
冷媒ガスの流れ及び潤滑油の流れに従って上記圧縮機
の作用を説明する。The operation of the compressor will be described according to the flow of the refrigerant gas and the flow of the lubricating oil.
低温低圧の冷媒ガスは、吸入管11から導かれ固定スク
ロール１内の吸入室12に至る。圧縮要素部に至った冷媒
ガスは第６図に示すように旋回スクロール２の自転を防
止された公転運動により、両スクロールで形成される密
閉空間13a,13bが漸次縮小し、スクロール中央部に移動
するとともに、該冷媒ガスは圧力を高め、中央の吐出穴
14より吐出される。吐出された高温，高圧の冷媒ガス
は、密閉容器10内の上部の空間である吐出室15、及び連
通路16,17を介し電動機まわりの空間18を満たし、吐出
管19を介して外部へ導かれる。The low-temperature low-pressure refrigerant gas is guided from the suction pipe 11 and reaches the suction chamber 12 in the fixed scroll 1. As shown in FIG. 6, the refrigerant gas reaching the compression element portion revolves around the orbiting scroll 2 while being prevented from rotating, so that the hermetically sealed spaces 13a and 13b formed by both scrolls gradually shrink and move to the central portion of the scroll. At the same time, the refrigerant gas increases the pressure and
It is discharged from 14. The discharged high-temperature, high-pressure refrigerant gas fills the space 18 around the electric motor through the discharge chamber 15, which is the upper space in the closed container 10, and the communication passages 16 and 17, and guides it to the outside through the discharge pipe 19. Get burned.
他方、旋回スクロール２の背面とブロック９で囲まれ
た空間の背圧室20には、固定，旋回の両スクロールで形
成される複数個の密閉空間内のガス圧によるスラスト方
向のガス力に対抗するため吸入圧力と吐出圧力の中間の
圧力が作用する。中間圧力の設定は、旋回スクロール２
の鏡板部2aに細孔2b,2cを設け、この細孔2b,2cを介して
圧縮途中のスクロール内部のガスを背圧室に導き、旋回
スクロール２の背面にガス力を作用させて行う。On the other hand, in the back pressure chamber 20 in the space surrounded by the back of the orbiting scroll 2 and the block 9, the thrust-direction gas force due to the gas pressure in the plurality of closed spaces formed by both fixed and orbiting scrolls is opposed. Therefore, an intermediate pressure between the suction pressure and the discharge pressure acts. Orbital scroll 2 is used to set the intermediate pressure.
Micropores 2b and 2c are provided in the end plate portion 2a, and gas inside the scroll which is being compressed is guided to the back pressure chamber through the micropores 2b and 2c, and a gas force is applied to the back surface of the orbiting scroll 2.
次に潤滑油の流れについて説明する。 Next, the flow of lubricating oil will be described.
潤滑油21は密閉容器10の下部に溜められる。主軸４の
下端は容器底部の油中に浸漬し、主軸４の上部には偏心
軸部4aを備え、該偏心軸部4aが旋回軸受５を介して圧縮
要素部である旋回スクロール２と係合している。主軸４
には、各軸受部への給油を行うための偏心縦孔4bが主軸
下端から主軸の上端面まで形成される。潤滑油21内に浸
漬された主軸４下端は高圧の吐出圧力（Pd）の雰囲気に
あり、他方、下流となる旋回軸受５のまわりは、中間圧
力（Pm）の雰囲気にあるため、（Pd−Pm）の圧力差によ
って密閉容器底部の潤滑油21は偏心縦孔4b内を上昇す
る。偏心縦孔4bを上昇した潤滑油は、補助軸受7,主軸受
６へ給油され、おのおのの軸受隙間を通って背圧室20へ
排油される。背圧室20に至った潤滑油は、前記細孔2b,2
cを介して固定スクロール１と旋回スクロール２とで形
成される作動室に注入され、スクロールラップ1b,2dの
内部で前記冷媒ガスと混合される。次に冷媒ガスと共に
潤滑油は昇圧作用を受け、吐出穴14,吐出室15,さらに連
通路16,17を経て電動機室18へと移動する。電動機室18
に至った潤滑油は自重のため密閉容器10底部へ落下す
る。落下した潤滑油は再び密閉容器10底部に溜められ、
各部の潤滑に供給される。The lubricating oil 21 is stored in the lower part of the closed container 10. The lower end of the main shaft 4 is immersed in oil at the bottom of the container, and the upper part of the main shaft 4 is provided with an eccentric shaft part 4a, which engages with the orbiting scroll 2 which is a compression element part via a orbiting bearing 5. are doing. Spindle 4
An eccentric vertical hole 4b for supplying oil to each bearing is formed from the lower end of the main shaft to the upper end face of the main shaft. The lower end of the main shaft 4 immersed in the lubricating oil 21 is in an atmosphere of high discharge pressure (Pd), while the surroundings of the slewing bearing 5, which is downstream, is in an atmosphere of intermediate pressure (Pm). Due to the pressure difference of (Pm), the lubricating oil 21 at the bottom of the closed container rises in the eccentric vertical hole 4b. The lubricating oil that has risen in the eccentric vertical hole 4b is supplied to the auxiliary bearing 7 and the main bearing 6, and is discharged to the back pressure chamber 20 through the respective bearing gaps. The lubricating oil that has reached the back pressure chamber 20 is
It is injected into the working chamber formed by the fixed scroll 1 and the orbiting scroll 2 via c, and is mixed with the refrigerant gas inside the scroll wraps 1b and 2d. Next, the lubricating oil is subjected to a pressure increasing action together with the refrigerant gas, and moves to the electric motor chamber 18 through the discharge hole 14, the discharge chamber 15, and the communication passages 16 and 17. Motor room 18
Due to its own weight, the lubricating oil that has reached the point will drop to the bottom of the closed container 10. Lubricating oil that dropped is stored again in the bottom of the closed container 10,
Supply for lubrication of each part.
以上のように構成されたスクロール型圧縮機におい
て、固定スクロール１の吐出穴14から吐出された冷媒ガ
スと潤滑油は密閉容器10の上シェル22に衝突し、潤滑油
は上シェル22の内壁に沿って落下し、固定スクロール１
の油溜め部23に溜められて給油孔1aを介して旋回スクロ
ール２の鏡板部2aを潤滑する。冷媒ガスは連通路16,17
へ向うためガスの流れが方向変換する。このように、吐
出室15にて、これらの衝突効果と方向変換の効果にて冷
媒ガスと潤滑油は分離される。In the scroll compressor configured as described above, the refrigerant gas and the lubricating oil discharged from the discharge hole 14 of the fixed scroll 1 collide with the upper shell 22 of the closed container 10, and the lubricating oil is applied to the inner wall of the upper shell 22. Fixed scroll 1 that falls along
The oil is accumulated in the oil sump 23 and lubricates the end plate 2a of the orbiting scroll 2 through the oil supply hole 1a. Refrigerant gas passes through communication channels
The flow of gas changes direction to go to. In this way, in the discharge chamber 15, the refrigerant gas and the lubricating oil are separated by the effect of the collision and the effect of the direction change.
発明が解決しようとする問題点 しかしながら上記のような構成では、固定スクロール
１の吐出穴14から吐出された冷媒ガスと潤滑油は上シェ
ル22に衝突しても、潤滑油は上シェル22の内壁に沿って
落下するため、固定スクロール１と上シェル22との間の
空間を潤滑油で満した後、油溜め部23に潤滑油が流れ込
むことになる。又、固定スクロール１の上部の潤滑油の
一部、更に、連通路16,17の上部の上シェル22の内壁に
沿って落下してきた潤滑油は冷媒ガスと共に連通路16,1
7を経て電動機室18へと落下する。落下してきた潤滑油
の一部は冷媒ガスに混じって吐出管19から排出されてシ
ステムを循環する。従って、油戻りの悪いシステムにお
いては特に密閉容器10内の潤滑油21は減少してくる。更
に、吐出室15に吐出された潤滑油も上記理由により、連
通路16,17へ流れ込みやすいため、固定スクロール１の
上部の油溜め部23での油量確保が不十分となり、機械損
失が増加し、EER（エネルギー消費効率）の低下だけで
なく、摺動部の焼付きの原因にもなっている。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned configuration, even if the refrigerant gas discharged from the discharge hole 14 of the fixed scroll 1 and the lubricating oil collide with the upper shell 22, the lubricating oil remains on the inner wall of the upper shell 22. Since it falls along with, the space between the fixed scroll 1 and the upper shell 22 is filled with lubricating oil, and then the lubricating oil flows into the oil sump 23. Further, a part of the lubricating oil in the upper portion of the fixed scroll 1 and the lubricating oil that has fallen along the inner wall of the upper shell 22 in the upper portion of the communication passages 16,17 together with the refrigerant gas are in the communication passages 16,1.
It drops through 7 into the motor room 18. A part of the lubricating oil that has fallen is mixed with the refrigerant gas, discharged from the discharge pipe 19, and circulates in the system. Therefore, especially in a system in which oil returns poorly, the amount of lubricating oil 21 in the closed container 10 decreases. Further, because the lubricating oil discharged into the discharge chamber 15 easily flows into the communication passages 16 and 17 for the above reason, it becomes insufficient to secure the amount of oil in the oil sump portion 23 at the upper part of the fixed scroll 1 and the mechanical loss increases. However, it not only lowers the EER (energy consumption efficiency) but also causes seizure on the sliding parts.
本発明は、上記従来の問題点を解消するもので、簡単
な構成で吐出穴から吐出された潤滑油を、たとえ圧縮機
が傾いても、固定スクロール上部の油溜め部全域に分離
落下させ、さらに潤滑油を各給油孔へ導き、給油孔を介
して旋回スクロールの鏡板部を均一に潤滑し、連通路へ
容易に流れ込まないようにしたスクロール型圧縮機を提
供するものである。The present invention is to solve the above-mentioned conventional problems, the lubricating oil discharged from the discharge hole with a simple configuration, even if the compressor is tilted, separated and dropped into the entire oil sump portion of the fixed scroll, Further, the present invention provides a scroll compressor in which lubricating oil is introduced to each oil supply hole, the end plate portion of the orbiting scroll is evenly lubricated through the oil supply hole, and is prevented from easily flowing into the communication passage.
問題点を解決するための手段 上記問題点を解決するために本発明は、旋回スクロー
ル鏡板に連通する給油孔が凹部となる放射状の凹凸面を
底面とする容器状の油溜め部を固定スクロール上部に形
成すると共に、吐出穴より吐出された潤滑油を該油溜め
部全域へ均一に分散落下するための複数個の独立した油
分離室からなる仕切板を吐出穴上部となる密閉容器内に
装着し、該仕切板の端部を該油溜め部の上部内に位置す
るようにしたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a container-like oil sump portion having a bottom surface which is a radial uneven surface in which an oil supply hole communicating with the orbiting scroll end plate is a concave portion. A partition plate consisting of a plurality of independent oil separation chambers is formed in the closed container above the discharge hole in order to uniformly disperse and drop the lubricating oil discharged from the discharge hole over the entire oil reservoir. The end of the partition plate is located in the upper part of the oil sump.
作用 本発明は上記した構成により、吐出室に吐出された潤
滑油を連通路へ容易に流れ込ませず圧縮機が傾いた際に
も固定スクロール上部の油溜め部の油量を確保し、旋回
スクロールの鏡板部を均一に潤滑できるので、EERの低
下や摺動部の焼付きを防止し、信頼性の向上を図るもの
である。Effect of the Invention With the above-described configuration, the present invention secures the amount of oil in the oil sump portion of the fixed scroll even when the compressor is tilted without allowing the lubricating oil discharged into the discharge chamber to easily flow into the communication passage, and thus the orbiting scroll Since it is possible to evenly lubricate the end plate portion of the, it is intended to prevent lowering of EER and seizure of the sliding portion to improve reliability.
実 施 例 以下本発明の一実施例を第１図乃至第５図を参照して
説明する。尚、従来例と同一部分は同一符号を付し説明
を省略する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.
第１図において、24は吐出穴14の上部となる密閉容器
10の上シェル22に装着された仕切板である。仕切板24
は、第２図に示すように複数個の独立した油分離室26か
らなっており、該仕切板24の端部25は固定スクロール１
の上部の油溜め部23の上部内に位置するように装着す
る。In FIG. 1, 24 is a closed container which is the upper part of the discharge hole 14.
A partition plate attached to the upper shell 22 of the 10. Partition plate 24
2 comprises a plurality of independent oil separation chambers 26 as shown in FIG. 2, and the end portion 25 of the partition plate 24 is fixed scroll 1
It is installed so that it is located in the upper part of the oil sump 23 of the upper part of the.
また、第３図に示すように、圧縮機がθ〔deg〕傾い
た場合でも固定スクロール１の上部の油溜め部23全域に
わたって油が溜まるように油溜め部23の深さｈを決定す
る。すなわち油溜め部23の直径（もしくは最大寸法）を
ｍとすると、 ｈ＝ｍ・tanθ とする。さらに第４至第５図に示すように、固定スクロ
ール１の油溜め部は、旋回スクロール２の鏡板部2aへの
複数個の給油孔1aが凹部となるような放射状の凹凸面と
なっている。Further, as shown in FIG. 3, the depth h of the oil sump portion 23 is determined so that the oil is accumulated over the entire oil sump portion 23 in the upper portion of the fixed scroll 1 even when the compressor is inclined by θ [deg]. That is, if the diameter (or maximum dimension) of the oil sump 23 is m, then h = m · tan θ. Further, as shown in FIGS. 4 to 5, the oil sump portion of the fixed scroll 1 has a radial uneven surface such that the plurality of oil supply holes 1a to the end plate portion 2a of the orbiting scroll 2 are concave portions. .
上記構成において、固定スクロール１の吐出穴14から
吐出された冷媒ガスと潤滑油は仕切板24の油分離室26お
のおのから、固定スクロール１の上部に設けられた油溜
め部23に均一に分散落下する。さらに、圧縮機が傾いて
も油溜め部23全域にわたって油量が確保でき、複数個の
給油孔1aへ均一に潤滑油を導くことができ、旋回スクロ
ール２の鏡板部2aを均一に潤滑できるのでEERの低下や
摺動部の焼付きを防止できる。また、従来連通路16,17
へ上シェル22に沿って流れ込んでいた潤滑油も、仕切板
24があるため直接流れ込むことがなくなった。In the above structure, the refrigerant gas and the lubricating oil discharged from the discharge hole 14 of the fixed scroll 1 are uniformly dispersed and dropped from the oil separation chamber 26 of the partition plate 24 to the oil sump 23 provided at the upper portion of the fixed scroll 1. To do. Further, even if the compressor is tilted, the amount of oil can be secured over the entire oil sump 23, the lubricating oil can be uniformly introduced to the plurality of oil supply holes 1a, and the end plate portion 2a of the orbiting scroll 2 can be evenly lubricated. It is possible to prevent lowering of EER and seizure of sliding parts. In addition, conventional communication passages 16,17
The lubricating oil that had flowed along the upper shell 22
Because there is 24, it does not flow directly.
発明の効果 以上の説明から明らかな様に、密閉容器内をブロック
にて固定スクロールの上部である吐出室と電動機まわり
の空間の電動機室とに二分し、ブロックと固定スクロー
ルの外周部に設けた両室を連絡させる連通路を備え、固
定スクロール上部に設けられ、旋回スクロール鏡板に連
通する給油孔が凹部となる放射状の凹凸面を底面とする
容器状の固定スクロール上部油溜め部と、吐出された潤
滑油を該油溜め部全域に均一に分散落下させることので
きる仕切板と、固定スクロール上部油溜め部の上部内に
位置する該仕切板の端部とを有するものであるから、吐
出室に吐出された潤滑油を連通路へ容易に流れ込ませ
ず、圧縮機が傾いた際にも、吐出された潤滑油を固定ス
クロール上部油溜め部全域に均一に分散落下させ、貯留
することができる。さらに、油溜め部底面は、旋回スク
ロール鏡板に連通する給油孔が凹部となる放射状の凹凸
面であるから、圧縮機が傾いても全ての給油孔に仕切板
から落下する潤滑油を貯留、供給することができ、旋回
スクロールの鏡板部を均一に潤滑できるので、EERの低
下や摺動部の焼付きを防止することができ、その実用的
効果は大なるものがある。EFFECTS OF THE INVENTION As is clear from the above description, the inside of the closed container is divided into the discharge chamber, which is the upper part of the fixed scroll, and the electric motor chamber in the space around the electric motor by the block, and the block and the fixed scroll are provided on the outer peripheral portion. A container-shaped fixed scroll upper oil sump portion having a communication path that connects both chambers, is provided in the upper part of the fixed scroll, and has a radial uneven surface that serves as a recess for the oil supply hole that communicates with the orbiting scroll end plate as the bottom surface, and is discharged. The discharge chamber has a partition plate capable of uniformly dispersing and dropping the lubricating oil over the entire oil sump portion and an end portion of the partition plate located in an upper portion of the fixed scroll upper oil sump portion. Even if the compressor is tilted, the lubricating oil discharged to the fixed passage does not easily flow into the communication passage, and the discharged lubricating oil can be evenly dispersed and dropped all over the fixed scroll upper oil sump to store it. it can. Further, the bottom surface of the oil sump is a radial uneven surface in which the oil supply hole communicating with the orbiting scroll end plate is a recess, so even if the compressor is tilted, all the oil supply holes store and supply the lubricating oil that falls from the partition plate. Since the end plate portion of the orbiting scroll can be evenly lubricated, it is possible to prevent a decrease in EER and seizure of the sliding portion, and its practical effect is great.
第１図は本発明の一実施例を示すスクロール型圧縮機の
縦断面図、第２図は同第１図の仕切板の平面図、第３図
は同第１図における圧縮機の傾いた状態を示す縦断面
図、第４図は固定スクロール上面油溜め部の平面図、第
５図は同第４図のＡ−Ａ′線における矢視図、第６図は
従来のスクロール型圧縮機の縦断面図、第７図はスクロ
ールのかみ合い状態を示す横断面図、第８図は従来の上
シェル及び固定スクロールを中心にした縦断面図、第９
図は固定スクロールの平面図である。 １……固定スクロール、1a……給油孔、2a……旋回スク
ロール鏡板部、９……ブロック、10……密閉容器、15…
…吐出室、16,17……連通路、18……電動機室、22……
上シェル、23……油溜め部、24……仕切板、25……仕切
板端部、26……油分離室。FIG. 1 is a vertical cross-sectional view of a scroll type compressor showing an embodiment of the present invention, FIG. 2 is a plan view of a partition plate of FIG. 1, and FIG. 3 is a tilt of the compressor in FIG. FIG. 4 is a vertical cross-sectional view showing a state, FIG. 4 is a plan view of a fixed scroll upper surface oil reservoir, FIG. 5 is a view taken along the line AA ′ in FIG. 4, and FIG. 6 is a conventional scroll compressor. FIG. 7 is a horizontal cross-sectional view showing the meshing state of the scroll, FIG. 8 is a vertical cross-sectional view centering on the conventional upper shell and fixed scroll, and FIG.
The figure is a plan view of the fixed scroll. 1 ... Fixed scroll, 1a ... Oil supply hole, 2a ... Orbiting scroll end plate, 9 ... Block, 10 ... Closed container, 15 ...
… Discharge chamber, 16,17 …… Communication passage, 18 …… Motor room, 22 ……
Upper shell, 23 ... Oil sump, 24 ... Partition plate, 25 ... Partition plate end, 26 ... Oil separation chamber.
Claims (1)
の上部である吐出室と電動機まわりの空間の電動機室と
に二分し、ブロックと固定スクロールの外周部に設けた
両室を連結させる連通路と、固定スクロール上部に設け
られ、旋回スクロール鏡板に連通する給油孔が凹部とな
る放射状の凹凸面を底面とする容器状の固定スクロール
上部油溜め部と、吐出された潤滑油を該油溜め部全域に
均一に分散落下させるための複数個の独立した油分離室
からなる仕切板と、固定スクロール上部油溜め部の上部
内に位置する該仕切板の端部とを有するスクロール型圧
縮機。1. A communication passage that divides the inside of a closed container into a discharge chamber, which is the upper part of a fixed scroll, and an electric motor chamber in the space around the electric motor by a block, and connects the block and both chambers provided on the outer peripheral portion of the fixed scroll. And a container-shaped fixed scroll upper oil sump portion having a bottom surface of a radial uneven surface in which an oil supply hole communicating with the orbiting scroll end plate is a recess, which is provided in the upper portion of the fixed scroll, and the discharged lubricating oil. A scroll-type compressor having a partition plate composed of a plurality of independent oil separation chambers for uniformly dispersing and dropping the whole area, and an end portion of the partition plate located in an upper portion of a fixed scroll upper oil sump portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61090641A JP2543036B2 (en) | 1986-04-18 | 1986-04-18 | Scroll type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61090641A JP2543036B2 (en) | 1986-04-18 | 1986-04-18 | Scroll type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62247197A JPS62247197A (en) | 1987-10-28 |
| JP2543036B2 true JP2543036B2 (en) | 1996-10-16 |
Family
ID=14004128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61090641A Expired - Lifetime JP2543036B2 (en) | 1986-04-18 | 1986-04-18 | Scroll type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543036B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018201829A1 (en) * | 2018-02-06 | 2019-08-08 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electromotive refrigerant compressor |
| CN109139460A (en) * | 2018-07-25 | 2019-01-04 | 南京奥特佳新能源科技有限公司 | A kind of screw compressor with gas oil separation structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56165788A (en) * | 1980-05-23 | 1981-12-19 | Hitachi Ltd | Enclosed scroll compressor |
-
1986
- 1986-04-18 JP JP61090641A patent/JP2543036B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62247197A (en) | 1987-10-28 |
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