JPH0249989A - Horizontal scroll compressor - Google Patents
Horizontal scroll compressorInfo
- Publication number
- JPH0249989A JPH0249989A JP20056388A JP20056388A JPH0249989A JP H0249989 A JPH0249989 A JP H0249989A JP 20056388 A JP20056388 A JP 20056388A JP 20056388 A JP20056388 A JP 20056388A JP H0249989 A JPH0249989 A JP H0249989A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- suction
- scroll
- rotating shaft
- movable scroll
- 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
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000005461 lubrication Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 28
- 230000007423 decrease Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、密閉容器の貯溜オイルを吸上げバイブを介し
て回転軸の軸受は用ボス部に供給してなる横型スクロー
ル圧縮機に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a horizontal scroll compressor in which oil stored in a closed container is sucked up and supplied to a bearing of a rotating shaft via a vibrator to a boss portion.
（ロ）従来の技術
本出願人が実願昭６２−１１９４３７９で出願した従来
の横型スクロール圧縮機では、回転軸が横力向に配置さ
れているため、この回転軸に設けられたオイルポンプの
吸込口も横方向で開口し直接、密閉容器の貯溜オイルに
挿入できず、この吸込口と貯溜オイルとの間に吸上げパ
イプを介在させている。(b) Conventional technology In the conventional horizontal scroll compressor filed by the present applicant in Utility Application No. 1194379/1980, the rotating shaft is arranged in the direction of lateral force, so the oil pump installed on this rotating shaft is The suction port also opens laterally and cannot be inserted directly into the oil stored in the closed container, and a suction pipe is interposed between the suction port and the stored oil.
しかしながら、この種横型スクロール圧縮機では、前記
貯溜オイルのオイルｔ・ベルが低下した場合等、前記吸
上げバイブの吸上げ高さが高まり、回転軸の軸受は用ボ
ス部へのオイル供給が困難となりこの軸受は用ボス部が
摩耗、焼付き等を生しる欠点がある。However, in this type of horizontal scroll compressor, when the oil t-bell of the stored oil decreases, the suction height of the suction vibrator increases, and the bearing of the rotating shaft makes it difficult to supply oil to the boss. However, this bearing has the disadvantage that the boss portion is subject to wear, seizure, etc.
（ハ） 発明が解決しようとする課題
本発明は前述の欠点を解消し、圧縮機の負荷人力を増大
させることなしに前記軸受用ボス部に確実にオイル供給
できる横型スクロール圧縮機を提供するものである。(c) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks and provides a horizontal scroll compressor that can reliably supply oil to the bearing boss without increasing the load on the compressor. It is.
（ニ）課題を解決するための手段
本発明は、密閉容器の内部に電動要素とスクロール圧縮
要素を配設し、前記電動要素の駆動力を水平方向に配置
した回転軸を介して前記スクロール圧縮要素に伝達する
と共に、該スクロール圧縮要素の可動スクロールのピン
部を前記回転軸のボス部で軸支し、該ボス部に、前記密
閉容器の貯溜オイルの吸りげバイブ及び前記回転軸のオ
イルポンプを介してオイルを供給してなるものであって
、
前記可動スクロールの端板の内部に吸入圧伝達通路を設
け、該吸入圧伝達通路を介して前記ボス部を前記スクロ
ール圧縮要素の吸入室又はその近傍空間に連通きせたも
のである。(D) Means for Solving the Problems The present invention provides an electric element and a scroll compression element disposed inside a closed container, and the driving force of the electric element is applied to the scroll compression via a rotating shaft arranged in a horizontal direction. At the same time, the pin portion of the movable scroll of the scroll compression element is pivotally supported by the boss portion of the rotating shaft, and the boss portion is provided with a vibrator for sucking up the oil stored in the sealed container and the oil of the rotating shaft. A suction pressure transmission passage is provided inside the end plate of the movable scroll, and the boss portion is connected to the suction chamber of the scroll compression element via the suction pressure transmission passage. Or it communicates with the surrounding space.
（ホ）作用
本発明によれば、回転軸の軸受は用ボス部は、吸入圧伝
達通路を介してスクロール圧縮要素め吸入室又はその近
傍空間に連通ずることで負圧に維持され、その負圧分だ
け回転軸のオイルポンプのオイル吸込力がアップし、よ
って密閉容器内のオイルレベルが低下した場合にも前記
軸受は用ボス部にその吸込力で確実にオイルを吸入でき
る。また、ｍｊ記記入入圧伝達通路、可動スクロールの
端板の内部に設けられるため、吸入圧伝達ノくイブ等の
専用部材を不要として、簡単に構成されるようになる。(E) Function According to the present invention, the bearing boss of the rotating shaft is maintained at negative pressure by communicating with the suction chamber for the scroll compression element or the space in its vicinity via the suction pressure transmission passage, and the The oil suction force of the oil pump on the rotating shaft is increased by the pressure, so that even if the oil level in the sealed container decreases, the bearing can reliably suck oil into the boss portion with its suction force. Furthermore, since the input pressure transmission passage (mj) is provided inside the end plate of the movable scroll, a dedicated member such as a suction pressure transmission nozzle is not required, and the structure can be simplified.
〈へ）実施例 次に本発明の一実施例について説明する。(to) Example Next, one embodiment of the present invention will be described.
第１図において、（１）は底部に潤滑オイル（２）の貯
溜された密閉容器、〈３）は密閉容器（１）に内股され
た電動要素、（４）は電動要素〈３）にて駆動されるス
クロール圧縮要素で、水平方向に配置した回転軸（５）
を介して駆動力が伝達される。電動要素（３）は、固定
子（６）とこの固定子（６）の内イπ１に配置きれた回
転子〈７）とで構成されている。回転軸（５）は、その
一端部で軸受け（８）を介して密閉容器（１）に固定さ
れている。（９）は軸受け（８）に取付けられた保持カ
ップ、（１０）は保持力ンブ（９）にて保持された吸上
げバイブで、その吸入口（１０ａ）を密閉容器（１）の
内底部に近接した箇所に配置することでオイル溜に挿入
すると共に、その送出口（１０ｂ）を回転軸（５）の中
央部に設けたオイルポンプ（１１〉に連通している。オ
イルポンプ（１１）では、後述するようにその回転によ
る遠心力等にて吸上げバイブ（１０）から潤滑オイルく
２）を吸入して径方向通路（ｌｌａ）等から軸受は部（
１２）及び軸受は用ボス部（１３）等に供給している。In Figure 1, (1) is an airtight container with lubricating oil (2) stored at the bottom, (3) is an electric element placed inside the airtight container (1), and (4) is an electric element (3). Driven scroll compression element with horizontally arranged rotation axis (5)
The driving force is transmitted through the The electric element (3) is composed of a stator (6) and a rotor (7) disposed at π1 within the stator (6). The rotating shaft (5) is fixed to the closed container (1) via a bearing (8) at one end thereof. (9) is a holding cup attached to a bearing (8), (10) is a suction vibrator held by a holding force member (9), and its suction port (10a) is connected to the inner bottom of the closed container (1). By arranging it near the oil reservoir, it is inserted into the oil reservoir, and its outlet (10b) is communicated with the oil pump (11) provided in the center of the rotating shaft (5).Oil pump (11) Then, as will be described later, lubricating oil (2) is sucked in from the suction vibrator (10) by the centrifugal force caused by the rotation, and the bearing is removed from the radial passage (lla).
12) and the bearing are supplied to the boss part (13), etc.
（１４）は前記スクロール圧縮要素（４）の一部を構成
する固定スクロールで、密閉容器（１）内を高圧室（１
５）と低圧室（１６）に区画する円板状の端板（１７）
と、該端板（１７）の周縁に突設した環状壁（１８〉と
、該環状壁（１８）の内側で前記端板り１７）に突設し
たインボリュート曲線態様の第１のうず巻体（１９）と
から構成きれている。高圧室（１５）及び低圧室（１６
）には、それぞれ吐出管（１５Ｐ）及び吸入管（１６Ｐ
）が連通している。（２０）は固定スクロール（１４〉
に対向して配設した可動スクロールで、前記第１のうず
巻体（１９）に対向してかみ合う第２のうず巻体（２１
）と、該うず巻体（２１）の突設された端板（２２）と
、該端板（２２）の中央に突設したピン部（２３）とか
ら構成きれている。第２のうず巻体（２１）は前記第１
のうず巻体（１９）と同様にインボリュート曲線態様に
形成されている。可動スクロール＜２０）は、そのピン
部（２３）で前記回転軸（５）に対して偏心した状態で
前記ボス部（１３）にて軸支跡れることで円軌道上で公
転運動して周囲空間り２４）のガス状冷媒を取り込んで
前記両うｒ巻体（１９）（２１）間に形成される吸入室
（２５ａ）（２５ｂ）更には圧縮室（２６）とともに夕
）側から中心に向かって移動させながら容積を縮小し工
圧縮妨せるように機能する。（２７）は固定スクロール
（１４）の端板（１７〉の中心部に形成した吐出孔で、
逆止弁（２８）に抗して圧縮冷媒を前記高圧室＜１５〉
に吐出させる。（２９）は前記密閉容器（１）に嵌合し
たフレームで、前記固定スクロール（１４）の環状壁（
１８）にポルｈ（３０）で固定きれた第１の脚部（２９
ａ）と、前記低圧室（１６）側へ延設された第２の脚部
（２９ｂ）と、回転軸（５）を軸支する前記軸受部＜１
２）とから構成きれている。（３１）はフレーム（２９
）に形成した吸込通路で、低圧室（１６）のガス状冷媒
を前記周囲空間り２４）に案内する。（３２）はボス部
（１３）の周囲で回転軸（５ンに設けたバランスウェイ
ト部で、７１−−ム（２９）の内側の空間で回転してい
る。 （３３）はフＬ−−ム（２９）に固定したオルダ
ムリングで、可動スクロール（２０）の固定スクロール
（１４）に対する相対的な自転を阻止する。(14) is a fixed scroll constituting a part of the scroll compression element (4), and the inside of the closed container (1) is a high pressure chamber (1).
5) and a disc-shaped end plate (17) that partitions into a low pressure chamber (16).
an annular wall (18) protruding from the periphery of the end plate (17); and a first spiral body in an involute curve form protruding from the end plate 17) inside the annular wall (18). It is composed of (19). High pressure chamber (15) and low pressure chamber (16)
) have a discharge pipe (15P) and a suction pipe (16P), respectively.
) are connected. (20) is a fixed scroll (14)
A movable scroll disposed opposite to the second spiral body (21) that faces and meshes with the first spiral body (19).
), a protruding end plate (22) of the spiral body (21), and a pin portion (23) protruding from the center of the end plate (22). The second spiral body (21)
Like the spiral wound body (19), it is formed in an involute curve shape. The movable scroll <20) is eccentric with respect to the rotating shaft (5) at its pin portion (23) and supported by the boss portion (13), thereby revolving around the surrounding space on a circular orbit. The suction chambers (25a) (25b) formed between the two winding bodies (19) and (21) and the compression chamber (26) are taken in from the side toward the center. It functions to reduce the volume while moving and prevent compression. (27) is a discharge hole formed in the center of the end plate (17>) of the fixed scroll (14);
The compressed refrigerant is supplied to the high pressure chamber <15> against the check valve (28).
Let it be discharged. (29) is a frame fitted into the closed container (1), and the annular wall (29) of the fixed scroll (14)
The first leg part (29) that has been fixed to the pole h (30) on the
a), the second leg portion (29b) extending toward the low pressure chamber (16), and the bearing portion <1 that pivotally supports the rotating shaft (5).
It is composed of 2). (31) is the frame (29
A suction passage formed in ) leads the gaseous refrigerant from the low pressure chamber (16) into the surrounding space 24). (32) is a balance weight part provided around the boss part (13) on the rotating shaft (5th one), and rotates in the space inside the frame 71 (29). An Oldham ring fixed to the scroll (29) prevents the movable scroll (20) from rotating relative to the fixed scroll (14).
而して前記可動スクロール〈２０〉は、端板り２２〉の
内部に吸入圧伝達通路（３４）を設け、該吸入圧伝達通
路（３４）を介して前記ボス部（１３）を前記吸入室（
２５ａ）（２５ｂ）に連通きせである。吸入圧伝達通路
（３４）は、第２図及び第３図に示すように、前記ピン
部（２３）のボス穴り３５）に連通ずる軸方向通路部（
３４ａ）と、該軸方向通路部（３４ａ）から直径方向に
近設された径方向通路部（３４ｂ）（３４ｃ）と、該径
方向通路部（３４ｂ）（３４Ｃ）から延設され前記吸入
室（２５ａ）（２５ｂ）に連通する小径通路部（３４ｄ
）（３４ｅ）とで構成きれている。前記径方向通路部（
３４ｂ）（３４Ｃ）は、端板（２２）に直径方向で貫通
して形成きれた後に、端部を圧入ピン及び挿入螺子等の
封人材（３５）（３５）で密封しである。前記小径通路
部（３４ｄＨ３４ｅ）については、吸入室（２５ａ）（
２５ｂ）に直接連通するものの他に間接的に近傍空間で
連通するものも実施される。The movable scroll <20> is provided with a suction pressure transmission passage (34) inside the end plate 22>, and connects the boss portion (13) to the suction chamber via the suction pressure transmission passage (34). (
25a) and (25b) are connected. As shown in FIGS. 2 and 3, the suction pressure transmission passage (34) is an axial passage (34) that communicates with the boss hole (35) of the pin part (23).
34a), radial passage portions (34b) (34c) provided diametrically close to the axial passage portion (34a), and extending from the radial passage portions (34b) (34C) to the suction chamber. (25a) A small diameter passage (34d) communicating with (25b)
)(34e). The radial passage portion (
34b) (34C) are formed by penetrating the end plate (22) in the diametrical direction and then sealing the ends with sealing members (35) (35) such as press-fit pins and insertion screws. Regarding the small diameter passage section (34dH34e), the suction chamber (25a) (
In addition to directly communicating with 25b), it is also possible to indirectly communicate with adjacent space.
前記横型スクロール圧縮機では、正常の圧縮運転時にお
いては、吸入管（１６Ｆ）から低圧室〈１６〉に流入し
たガス状冷媒を吸込通路（３１〉にて周囲空間＜２４）
に案内して円軌道上で公転運動する可動スクロール（２
０）と固定スクロール（１４）の間に取り込んで両スク
ロール（？０）（１４）のうず巻体（２１）（１９）間
の吸入室（２５ａＨ２５ｂ）に吸入し更にこの吸入室（
２５ａ）（２５ｂ）を圧縮室（２６）に転化してこの圧
縮室（２６）を除々に縮小させて中心に移励させること
で圧縮しその後に圧縮室（２６）の中央部の吐出孔（２
７）がら吐出し更に高圧室（１５）を経て吐出管（１５
Ｐ）から密閉容器（１）外へ吐出する。また回転軸く５
）の軸受は用ボス部（１３〉は、吸入圧伝達通路〈３４
〉を介してスクロ−１し圧縮要素（４〉の吸入室（２５
ａ）（２５ｂ）に連通することで負圧に維持され、その
負圧分だけ回転＠（５）のオイルポンプ（１１）のオイ
ル吸込力がアップし、従って密閉容器（１）内のオイル
レベルが低下した場合にも軸受は用ボス部（１３）にそ
の吸込力で吸上げバイブ（１０）から確実にオイル（２
）は吸入される。In the horizontal scroll compressor, during normal compression operation, the gaseous refrigerant flowing into the low pressure chamber <16> from the suction pipe (16F) is transferred to the surrounding space <24> through the suction passage (31>).
A movable scroll (2
0) and the fixed scroll (14), and sucks it into the suction chamber (25aH25b) between the spiral bodies (21) and (19) of both scrolls (?0) and (14).
25a) (25b) is converted into a compression chamber (26), this compression chamber (26) is gradually reduced in size and compressed by moving it to the center, and then the discharge hole ( 2
7) The gas is discharged and then passed through the high pressure chamber (15) to the discharge pipe (15).
P) to the outside of the closed container (1). Also, the rotation axis 5
) is the boss part (13) for the suction pressure transmission passage (34)
> through the suction chamber (25) of the compression element (4)
a) Negative pressure is maintained by communicating with (25b), and the oil suction force of the rotating oil pump (11) of (5) increases by the amount of negative pressure, thus reducing the oil level in the sealed container (1). Even if the oil (2) decreases, the bearing uses its suction force to reliably draw oil (2
) is inhaled.
（ト）発明の効果
本発明は以上のように構成したから、回転軸の軸受は用
ボス部は、吸入圧伝達通路を介してスクロール圧縮要素
の吸入室スはその近傍空間に連通ずることで負圧に維持
きれ、その負圧分だけ回転軸のオイルポンプの引イル吸
込力がア／ブし、よって密閉容器内のオイルレベルが低
下した場合にも前記軸受は用ボス部にその吸込力で確実
にオイルを吸入でき、従って、プランジャーの往復動作
等による強制給油方式のものとは異なり圧縮機の負圧入
力を増大させることなく確実に軸受部にオイル供給でき
る。また前記吸入圧伝達通路を、可動スクロールの端板
内部に設けることで吸入圧伝達パイプ等の専用部材を不
要として簡単に構成できる。(G) Effects of the Invention Since the present invention is constructed as described above, the bearing of the rotating shaft is connected to the boss portion, and the suction chamber of the scroll compression element is communicated with the space in the vicinity thereof through the suction pressure transmission passage. Even if the negative pressure is maintained and the suction force of the oil pump on the rotating shaft is abated by the negative pressure, and the oil level in the sealed container decreases, the bearing will still be able to maintain the suction force at the boss. Therefore, oil can be reliably supplied to the bearing portion without increasing the negative pressure input to the compressor, unlike a forced oil supply system using a reciprocating motion of a plunger. Further, by providing the suction pressure transmission passage inside the end plate of the movable scroll, a dedicated member such as a suction pressure transmission pipe is not required, and the structure can be easily constructed.
第１図は本発明の一実施例の縦断面図、第２図は同実施
例に備えた一部材の縦断面図、第３図は同部材の正面図
である。
（１）・・・密閉容器、（２）・・・潤滑オイル、（３
）・・・電動要素、（４）・・・スクロール圧縮要素、
（５）・・・回転軸、（１０）・・・吸上げパイプ、（
１１）・・・オイルポンプ、（１３）・・・ホス部、（
２０）・・・可動スクロール、（２２）・・・端板、（
２３）＝−・ピン部、＜２５ａ）（２５ｂＬ＝吸入室、
（３４）・・・吸入圧伝達通路。FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of a member included in the embodiment, and FIG. 3 is a front view of the same member. (1)... airtight container, (2)... lubricating oil, (3
)...Electric element, (4)...Scroll compression element,
(5)... Rotating shaft, (10)... Suction pipe, (
11)...Oil pump, (13)...Hoss part, (
20)...Movable scroll, (22)...End plate, (
23)=-・Pin part, <25a) (25bL=suction chamber,
(34)...Suction pressure transmission passage.
Claims (1)
配設し、前記電動要素の駆動力を水平方向に配置した回
転軸を介して前記スクロール圧縮要素に伝達すると共に
、該スクロール圧縮要素の可動スクロールのピン部を前
記回転軸のボス部で軸支し、該ボス部に、前記密閉容器
の貯溜オイルの吸上げパイプ及び前記回転軸のオイルポ
ンプを介してオイルを供給してなるものであって、 前記可動スクロールの端板の内部に吸入圧伝達通路を
設け、該吸入圧伝達通路を介して前記ボス部を前記スク
ロール圧縮要素の吸入室又はその近傍空間に連通させた
ことを特徴とする横型スクロール圧縮機。[Claims] 1) An electric element and a scroll compression element are disposed inside a closed container, and the driving force of the electric element is transmitted to the scroll compression element via a horizontally arranged rotating shaft, A pin portion of a movable scroll of the scroll compression element is pivotally supported by a boss portion of the rotating shaft, and oil is supplied to the boss portion via a suction pipe for the oil stored in the sealed container and an oil pump of the rotating shaft. A suction pressure transmission passage is provided inside the end plate of the movable scroll, and the boss portion is communicated with the suction chamber of the scroll compression element or a space in its vicinity via the suction pressure transmission passage. A horizontal scroll compressor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20056388A JPH0249989A (en) | 1988-08-10 | 1988-08-10 | Horizontal scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20056388A JPH0249989A (en) | 1988-08-10 | 1988-08-10 | Horizontal scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0249989A true JPH0249989A (en) | 1990-02-20 |
Family
ID=16426399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20056388A Pending JPH0249989A (en) | 1988-08-10 | 1988-08-10 | Horizontal scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249989A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5212964A (en) * | 1992-10-07 | 1993-05-25 | American Standard Inc. | Scroll apparatus with enhanced lubricant flow |
| US5215451A (en) * | 1990-10-04 | 1993-06-01 | Mitsubishi Denki Kabushiki Kaisha | Scroll type compressor having stepped assembling portions on the center shell |
| US5370513A (en) * | 1993-11-03 | 1994-12-06 | Copeland Corporation | Scroll compressor oil circulation system |
| US5395224A (en) * | 1990-07-31 | 1995-03-07 | Copeland Corporation | Scroll machine lubrication system including the orbiting scroll member |
| KR970027838A (en) * | 1995-11-30 | 1997-06-24 | 다카노 야스아키 | Scroll compressor |
| US6210137B1 (en) * | 1998-12-28 | 2001-04-03 | Tokico Ltd. | Scroll fluid machine |
| US6322339B1 (en) * | 1997-09-17 | 2001-11-27 | Sanyo Electric Co., Ltd. | Scroll compressor |
| US6953330B1 (en) * | 2004-08-02 | 2005-10-11 | Anest Iwata Corporation | Scroll vacuum pump |
| US10161401B2 (en) | 2014-10-30 | 2018-12-25 | Lg Electronics Inc. | Compressor and method of autonomously inspecting oil |
| JP2020060144A (en) * | 2018-10-11 | 2020-04-16 | 三菱重工サーマルシステムズ株式会社 | Scroll compressor |
| CN113494459A (en) * | 2021-08-27 | 2021-10-12 | 广东美的环境科技有限公司 | Compression assembly and scroll compressor |
-
1988
- 1988-08-10 JP JP20056388A patent/JPH0249989A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395224A (en) * | 1990-07-31 | 1995-03-07 | Copeland Corporation | Scroll machine lubrication system including the orbiting scroll member |
| US5215451A (en) * | 1990-10-04 | 1993-06-01 | Mitsubishi Denki Kabushiki Kaisha | Scroll type compressor having stepped assembling portions on the center shell |
| US5212964A (en) * | 1992-10-07 | 1993-05-25 | American Standard Inc. | Scroll apparatus with enhanced lubricant flow |
| US5370513A (en) * | 1993-11-03 | 1994-12-06 | Copeland Corporation | Scroll compressor oil circulation system |
| KR970027838A (en) * | 1995-11-30 | 1997-06-24 | 다카노 야스아키 | Scroll compressor |
| US5810573A (en) * | 1995-11-30 | 1998-09-22 | Sanyo Electric Co., Ltd. | Scroll compressor having a baffle plate and oil passages in the orbiting scroll member |
| US6322339B1 (en) * | 1997-09-17 | 2001-11-27 | Sanyo Electric Co., Ltd. | Scroll compressor |
| US6210137B1 (en) * | 1998-12-28 | 2001-04-03 | Tokico Ltd. | Scroll fluid machine |
| US6953330B1 (en) * | 2004-08-02 | 2005-10-11 | Anest Iwata Corporation | Scroll vacuum pump |
| US10161401B2 (en) | 2014-10-30 | 2018-12-25 | Lg Electronics Inc. | Compressor and method of autonomously inspecting oil |
| JP2020060144A (en) * | 2018-10-11 | 2020-04-16 | 三菱重工サーマルシステムズ株式会社 | Scroll compressor |
| CN113494459A (en) * | 2021-08-27 | 2021-10-12 | 广东美的环境科技有限公司 | Compression assembly and scroll compressor |
| CN113494459B (en) * | 2021-08-27 | 2023-02-17 | 广东美的环境科技有限公司 | Compression assembly and scroll compressor |
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