JPH05202875A - Rotary compressor - Google Patents

Rotary compressor

Info

Publication number
JPH05202875A
JPH05202875A JP1372092A JP1372092A JPH05202875A JP H05202875 A JPH05202875 A JP H05202875A JP 1372092 A JP1372092 A JP 1372092A JP 1372092 A JP1372092 A JP 1372092A JP H05202875 A JPH05202875 A JP H05202875A
Authority
JP
Japan
Prior art keywords
cylinder
inner diameter
suction port
suction
top dead
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
Application number
JP1372092A
Other languages
Japanese (ja)
Inventor
Takemi Tada
武美 多田
Katsumi Endo
勝美 遠藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1372092A priority Critical patent/JPH05202875A/en
Publication of JPH05202875A publication Critical patent/JPH05202875A/en
Pending legal-status Critical Current

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  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To improve volumetric efficiency by forming the outer diameter side of a cylinder at a round-shaped suction port and the inner diameter side at an elliptical suction port in a suction passage respectively, to shorten a distance between a top dead end point, to a compression start, position and to ensure a passage area. CONSTITUTION:When a roller 10 which is fitted to a crank eccentrically-rotates along the inner diameter of a cylinder 18, refrigerant flows through a cylinder chamber 18a from a suction pipe through a suction passage 19. At this time, because a part of refrigerant which is sucked into the cylinder chamber 18a at a top dead point 21 flow reversely to the suction passage 19 while the roller 10 rotates from the top dead point 21 to a compression start position 22, the capacity from the top dead point 21 to the compression start position 22 is not compressed. Because the suction port of a cylinder inner diameter surface is formed in an ellipse and the distance from the top dead point 21 to the compression start position 22 is shortened, however, the volumetric efficiency is improved. Moreover, because the longer diameter of the elliptical suction port is preset at a prescribed size, it is possible to reduce passage resistance when the refrigerant is sucked into the cylinder chamber 18a.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、冷蔵庫、ルームエアコ
ン等に搭載するロータリ圧縮機に係り、特に圧縮機の効
率向上に有効な発明に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary compressor mounted in a refrigerator, a room air conditioner or the like, and more particularly to an invention effective for improving the efficiency of the compressor.

【0002】[0002]

【従来の技術】従来の圧縮機を図5、図6、図7により
説明する。図5は従来のロータリ圧縮機の縦断面図であ
る。図6、図7はそれぞれ同圧縮機の要部横断面図と要
部を示す斜視図である。
2. Description of the Related Art A conventional compressor will be described with reference to FIGS. FIG. 5 is a vertical sectional view of a conventional rotary compressor. FIG. 6 and FIG. 7 are a cross-sectional view of a main part and a perspective view showing the main part of the compressor, respectively.

【0003】同図において、1はケースである。このケ
ース1内に電動要素2と圧縮機要素3とが収納されてい
る。上記電動要素2はステータ4とロータ5とからな
り、ロータ5はクランク6aを有したシャフト6が嵌入
されている。圧縮機要素3はシリンダ7と上軸受8と下
軸受9とローラ10とベーン11とスプリング12とか
ら構成されている。ローラ10はクランク6aに嵌めら
れており、シリンダ7の内径に沿って偏心回転する機能
を有している。上軸受8及び下軸受9はシャフト6に嵌
められ、シリンダ7の両側にそれぞれボルト13により
固定されている。シリンダ7の本体は鋳物材を素材と
し、シリンダ室7a、ベーン溝7b、吸込通路7cが機
械加工により形成されている。14は吸込管、15は吐
出管でそれぞれ上記ケース1に溶接されている。ベーン
11はー端がローラ10に当接し、他端がバネ12に押
されながらベーン溝7b内に嵌められている。
In the figure, 1 is a case. The electric element 2 and the compressor element 3 are housed in the case 1. The electric element 2 is composed of a stator 4 and a rotor 5, and a shaft 6 having a crank 6a is fitted into the rotor 5. The compressor element 3 is composed of a cylinder 7, an upper bearing 8, a lower bearing 9, a roller 10, a vane 11 and a spring 12. The roller 10 is fitted in the crank 6 a and has a function of eccentrically rotating along the inner diameter of the cylinder 7. The upper bearing 8 and the lower bearing 9 are fitted on the shaft 6 and fixed to both sides of the cylinder 7 by bolts 13. The body of the cylinder 7 is made of a casting material, and the cylinder chamber 7a, the vane groove 7b, and the suction passage 7c are formed by machining. A suction pipe 14 and a discharge pipe 15 are welded to the case 1 respectively. One end of the vane 11 is in contact with the roller 10 and the other end of the vane 11 is fitted into the vane groove 7b while being pressed by the spring 12.

【0004】上記の如く構成したロータリ圧縮機は、電
動要素2に通電されるとロータ5が回転し、このロータ
5に直結されたシャフト6により圧縮要素3に回転運動
が伝達される。この伝達された回転運動によりクランク
6aに嵌められたローラ10がシリンダ7の内径に沿っ
て偏心回転運動する。このローラ10の回転により冷媒
は吸込通路7cから吸込室7dに吸入され、圧縮室7e
で圧縮されてケース1内に吐出し、さらに吐出管15か
ら冷凍サイクル〔図示せず〕へと吐出する構造である。
In the rotary compressor constructed as described above, when the electric element 2 is energized, the rotor 5 rotates, and the rotary motion is transmitted to the compression element 3 by the shaft 6 directly connected to the rotor 5. Due to the transmitted rotational movement, the roller 10 fitted in the crank 6a makes an eccentric rotational movement along the inner diameter of the cylinder 7. Due to the rotation of the roller 10, the refrigerant is sucked into the suction chamber 7d through the suction passage 7c and the compression chamber 7e.
It is compressed by and discharged into the case 1, and further discharged from the discharge pipe 15 to a refrigeration cycle [not shown].

【0005】ところが、上記従来圧縮機の構造は以下に
述べる欠点を有していた。すなわち、図6に示すように
ローラ10が上死点16から圧縮開始位置17まで回転
する間、シリンダ室7a内に吸入された冷媒が吸込通路
7cに逆流するため圧縮されず、上死点16から圧縮開
始位置17までの容積が圧縮されない容積となるため、
体積効率が低下する原因となっていた。また、上死点1
6から圧縮開始位置17までの距離を小さくするため吸
込通路7cの内径を小さくすると、冷媒の通路抵抗が大
きくなり結果的に体積効率が低下する問題があった。
However, the structure of the conventional compressor has the following drawbacks. That is, as shown in FIG. 6, while the roller 10 rotates from the top dead center 16 to the compression start position 17, the refrigerant sucked into the cylinder chamber 7a flows backward into the suction passage 7c and is not compressed, so that the top dead center 16 Since the volume from to the compression start position 17 is the volume that is not compressed,
This was the cause of the decrease in volumetric efficiency. Also, top dead center 1
If the inner diameter of the suction passage 7c is reduced in order to reduce the distance from 6 to the compression start position 17, the passage resistance of the refrigerant increases, resulting in a problem that the volume efficiency decreases.

【0006】また、図8、及び図9に示す他の従来例は
吸込通路23がベーン24とベーン溝25の一壁面に設
けたシリンダに開口する溝26を設けて上死点27から
圧縮開始位置28までの距離を小さくする構造である
が、ベーン24で仕切られた吸込室29と圧縮室30と
の差圧により、ベーン24は横荷重Fを受けながらベー
ン溝25内を摺動し、溝26があるため摺動面の受圧面
積が小さくなり、ベーン溝25の壁面とベーン24との
面圧が増大し、油膜切れ、かじりを招き信頼性に問題が
あった。
Further, in another conventional example shown in FIGS. 8 and 9, the suction passage 23 is provided with a groove 26 opening to a cylinder provided on one wall surface of the vane 24 and the vane groove 25, and the compression is started from the top dead center 27. Although the structure to reduce the distance to the position 28, the vane 24 slides in the vane groove 25 while receiving the lateral load F due to the differential pressure between the suction chamber 29 and the compression chamber 30 partitioned by the vane 24. Due to the presence of the groove 26, the pressure receiving area of the sliding surface is reduced, the surface pressure between the wall surface of the vane groove 25 and the vane 24 is increased, and the oil film is broken and galling is caused, which is a problem in reliability.

【0007】尚、この種の圧縮機に関連するものとし
て、例えば特開昭61−25982号公報があげられ
る。
Incidentally, one related to this type of compressor is, for example, JP-A-61-25982.

【0008】[0008]

【発明が解決しようとする課題】本発明は、上記従来の
問題点を解決するもので、圧縮開始位置角度を小さく
し、且つ吸込通路面積を大きくして体積効率を向上させ
能力を向上させることを目的とするものである。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art by reducing the compression start position angle and increasing the suction passage area to improve the volumetric efficiency and improve the capacity. The purpose is.

【0009】[0009]

【課題を解決するための手段】上記目的は、以下に述べ
る手段により達成される。すなわち、シリンダ内径側の
吸込通路の穴形状を円形から、シリンダ高さ方向に長径
を有する楕円の形状にすることにより達成される。
The above object can be achieved by the means described below. That is, this is achieved by changing the hole shape of the suction passage on the cylinder inner diameter side from a circular shape to an elliptical shape having a major axis in the cylinder height direction.

【0010】[0010]

【作用】上記の如くシリンダ内径側の吸込通路の穴形状
を楕円形状にすることにより、所要の吸込通路面積を確
保して上死点から圧縮開始位置までの距離を小さくでき
るので体積効率を向上させ能力を向上させることができ
るものである。
As described above, by making the shape of the hole of the suction passage on the cylinder inner diameter side oval, the required suction passage area can be secured and the distance from the top dead center to the compression start position can be reduced, so that the volume efficiency is improved. It is possible to improve the ability.

【0011】[0011]

【実施例】以下、本発明の一実施例について図1〜図4
を参考に説明する。図1は本発明のロータリ圧縮機の縦
断面図である。図2、図3はそれぞれ同ロータリ圧縮機
の要部横断面図と要部を示す斜視図、図4はロータリ圧
縮機の要部の加工状態を示す断面図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
Will be explained with reference to. FIG. 1 is a vertical sectional view of a rotary compressor of the present invention. 2 and 3 are a horizontal cross-sectional view and a perspective view showing a main part of the rotary compressor, respectively, and FIG. 4 is a cross-sectional view showing a processed state of the main part of the rotary compressor.

【0012】同図おいて、油溜めを兼ねたケース1内に
ステータ4とロータ5とからなる電動要素2と、シャフ
ト6とシリンダ18と上軸受8と下軸受9とローラ10
とベーン11とスプリング12とからなる圧縮要素2と
が収納されている。シャフト6はクランク6aをもって
おり、一端がロータ5に固着されており他端が上軸受8
及び下軸受9にはめられている。上軸受8及び下軸受9
はシリンダ18の側板を兼ねており、それぞれシリンダ
18の両側に配設してシリンダ室18aを形成してい
る。ローラ10はクランク6aに嵌められシリンダ室1
8a内に納められている。シリンダ18には、図2に示
すように溝18bが設けられており、この溝18b内に
ベーン11が嵌められている。ベーン11は一端がロー
ラ10に当接し他端がスプリング12に押されながら溝
18b内を往復摺動する機能をもっている。19はシリ
ンダ18に設けられた吸込通路である。14は吸入管、
15は吐出管であり、これらは上記ケース1に溶接固定
されている。
In the figure, an electric element 2 including a stator 4 and a rotor 5, a shaft 6, a cylinder 18, an upper bearing 8, a lower bearing 9, and a roller 10 are provided in a case 1 which also serves as an oil sump.
And a compression element 2 consisting of a vane 11 and a spring 12. The shaft 6 has a crank 6a, one end of which is fixed to the rotor 5 and the other end of which is an upper bearing 8a.
And the lower bearing 9. Upper bearing 8 and lower bearing 9
Also serve as side plates of the cylinder 18, and are arranged on both sides of the cylinder 18 to form a cylinder chamber 18a. The roller 10 is fitted to the crank 6a and is attached to the cylinder chamber 1
It is stored in 8a. As shown in FIG. 2, the cylinder 18 is provided with a groove 18b, and the vane 11 is fitted in the groove 18b. The vane 11 has a function of reciprocatingly sliding in the groove 18b while one end of the vane 11 is in contact with the roller 10 and the other end is pressed by the spring 12. Reference numeral 19 is a suction passage provided in the cylinder 18. 14 is a suction pipe,
Reference numeral 15 is a discharge pipe, which are fixed to the case 1 by welding.

【0013】次に図2、図3、図4により上記吸込通路
19の構成について説明摺る。
Next, the structure of the suction passage 19 will be described with reference to FIGS. 2, 3, and 4.

【0014】同図において、20は吸込通路19に直交
する様にシリンダ内径近傍に穴明けされた貫通穴であ
る。この貫通穴20の両端は、上記上軸受8と下軸受9
によって密閉される構造である。吸込通路19は上記吸
入管14を圧入する穴がシリンダ18の外径よりドリル
加工により穴明けされており、この穴は上記貫通穴20
に連通する深さまで穴明けされている。一方、シリンダ
内径側は図4に示すようにシリンダ内径の斜め方向より
ドリル加工し、貫通穴20に連通するように加工して形
成している。したがってシリンダ18の内径側の吸込通
路19の形状は図4に示すように楕円形状19aを成し
ている。
In the figure, reference numeral 20 designates a through hole formed near the inner diameter of the cylinder so as to be orthogonal to the suction passage 19. Both ends of the through hole 20 have the upper bearing 8 and the lower bearing 9 described above.
The structure is sealed by. A hole for press-fitting the suction pipe 14 is formed in the suction passage 19 from the outer diameter of the cylinder 18 by drilling. This hole is the through hole 20.
Has been drilled to the depth that communicates with. On the other hand, as shown in FIG. 4, the cylinder inner diameter side is formed by drilling from an oblique direction of the cylinder inner diameter so as to communicate with the through hole 20. Therefore, the suction passage 19 on the inner diameter side of the cylinder 18 has an elliptical shape 19a as shown in FIG.

【0015】このように構成したロータリ圧縮機は、電
動要素2に通電されるとロータ5が回転し、このロータ
5に直結されたシャフト6により圧縮要素3に回転運動
が伝達される。この伝達された回転運動によりクランク
6aに嵌められたローラ10がシリンダ18の内径に沿
って偏心回転運動し、冷媒は吸入管15から吸込通路1
9を通りシリンダ室18a内に流れ込む。上死点21で
シリンダ室18a内一杯に吸込まれた冷媒の一部は上死
点21から圧縮開始位置22までローラ10が回転する
間、吸込通路19内に逆流するため、上死点21から圧
縮開始位置22までの容積が圧縮されないが、シリンダ
内径面の吸込口が楕円形状にして上死点21から圧縮開
始位置22までの距離を小さく構成しているので体積効
率が向上し、能力が向上する。また、楕円形上吸込口の
長径はシリンダ高さの60%〜80%の大きさに構成し
ているため上死点21から圧縮開始位置22までの距離
を小さくしても吸込通路面積を大きくすることができ、
冷媒がシリンダ室に吸入されるときの通路抵抗が小さく
出来るので体積効率が向上し、能力の向上が図れる。
In the rotary compressor thus constructed, when the electric element 2 is energized, the rotor 5 rotates, and the rotary motion is transmitted to the compression element 3 by the shaft 6 directly connected to the rotor 5. Due to the transmitted rotational movement, the roller 10 fitted in the crank 6a makes an eccentric rotational movement along the inner diameter of the cylinder 18, and the refrigerant is drawn from the suction pipe 15 into the suction passage 1
9 and flows into the cylinder chamber 18a. At the top dead center 21, a part of the refrigerant sucked in the cylinder chamber 18a backflows into the suction passage 19 while the roller 10 rotates from the top dead center 21 to the compression start position 22. Although the volume up to the compression start position 22 is not compressed, the suction port on the inner diameter surface of the cylinder has an elliptical shape so that the distance from the top dead center 21 to the compression start position 22 is small, so that the volume efficiency is improved and the capacity is improved. improves. Further, since the major axis of the elliptical upper suction port is configured to be 60% to 80% of the cylinder height, the suction passage area is increased even if the distance from the top dead center 21 to the compression start position 22 is reduced. You can
Since the passage resistance when the refrigerant is sucked into the cylinder chamber can be reduced, the volume efficiency is improved and the capacity is improved.

【0016】[0016]

【発明の効果】以上のように本発明はシリンダ内壁の吸
込口を穴幅をせまくし、シリンダ高さ方向に長い細長い
穴に形成して、上死点から圧縮開始位置までの距離を小
さくし、且つ細長い穴にして所要の通路面積を確保して
冷媒の吸込通路抵抗を増大しないように構成しいている
ため、圧縮機の体積効率が向上し能力の向上が図れる効
果がある。
As described above, the present invention reduces the distance from the top dead center to the compression start position by forming the suction port of the inner wall of the cylinder with a narrow hole width and forming the elongated hole elongated in the cylinder height direction. In addition, since it is configured so as to have a long and narrow hole to secure a required passage area so as not to increase the suction passage resistance of the refrigerant, there is an effect that the volumetric efficiency of the compressor is improved and the capacity is improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のロータリ圧縮機の縦断面図である。FIG. 1 is a vertical sectional view of a rotary compressor of the present invention.

【図2】図1の要部横断面図である。FIG. 2 is a transverse cross-sectional view of the main parts of FIG.

【図3】図1の要部を示す斜視図である。FIG. 3 is a perspective view showing a main part of FIG.

【図4】図1の要部の加工状態を示す断面図である。FIG. 4 is a cross-sectional view showing a processed state of a main part of FIG.

【図5】従来のロータリ圧縮機の縦断面図である。FIG. 5 is a vertical cross-sectional view of a conventional rotary compressor.

【図6】図5の要部横断面図である。6 is a cross-sectional view of the main parts of FIG.

【図7】図5の要部を示す斜視図である。FIG. 7 is a perspective view showing a main part of FIG.

【図8】従来の他の実施例のロータリ圧縮機の要部横断
面図である。
FIG. 8 is a lateral cross-sectional view of a main part of a conventional rotary compressor of another embodiment.

【図9】図8の要部を示す斜視図である。9 is a perspective view showing a main part of FIG.

【符号の説明】[Explanation of symbols]

1…ケース、 4…ステータ、 5…ロータ、 6…シャフト、 7,18…シリンダ、 8…上軸受、 9…下軸受、 10…ローラ、 11…ベーン、 12…スプリング、 13…ボルト、 14…吸込管、 15…吐出管、 16,21…上死点、 17,22…圧縮開始位置、 7c,19…吸込通路、 20…貫通穴。 DESCRIPTION OF SYMBOLS 1 ... Case, 4 ... Stator, 5 ... Rotor, 6 ... Shaft, 7, 18 ... Cylinder, 8 ... Upper bearing, 9 ... Lower bearing, 10 ... Roller, 11 ... Vane, 12 ... Spring, 13 ... Bolt, 14 ... Suction pipe, 15 ... Discharge pipe, 16, 21 ... Top dead center, 17, 22 ... Compression start position, 7c, 19 ... Suction passage, 20 ... Through hole.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】シリンダと上記シリンダの両側にシリンダ
の側板を兼ねた上軸受と下軸受をそれぞれ配設してシリ
ンダ室を形成し、上記シリンダ高さの中央部に直線的に
シリンダの外径から内径に穴明けされて吸込通路を形成
したロータリ圧縮機において、上記吸込通路が、シリン
ダの外径側が円形の吸込口、内径側が長円の吸込口に形
成したことを特徴とするロータリ圧縮機。
1. A cylinder and an upper bearing and a lower bearing, which also serve as side plates of the cylinder, are arranged on both sides of the cylinder to form a cylinder chamber, and the outer diameter of the cylinder is linearly formed at the center of the cylinder height. A rotary compressor having a suction passage formed by drilling from the inner diameter to the suction passage, wherein the suction passage has a circular suction port on the outer diameter side of the cylinder and an oval suction port on the inner diameter side. ..
【請求項2】請求項1において、上記長円の吸込口の長
径が、上記円形の吸込口の直径より1.2〜2倍の大き
さとし、且つシリンダ高さの0.5〜0.8倍にしたこ
とを特徴とするロータリ圧縮機。
2. The long diameter of the oblong suction port is 1.2 to 2 times larger than the diameter of the circular suction port, and the cylinder height is 0.5 to 0.8. A rotary compressor characterized by doubling.
【請求項3】請求項1または2において、上記長円の吸
込口の成形を上記吸込通路に直交するようにシリンダ端
面に貫通した穴を穴明けしておき、且つ上記貫通した穴
がシリンダ内径の近傍で内径に接しない位置に設けら
れ、さらに上記貫通した穴に交差するようにシリンダ内
径側斜め方向よりドリルを入れてシリンダ内径面に長円
の吸込口を形成したことを特徴とするロータリ圧縮機。
3. The cylinder according to claim 1 or 2, wherein the oblong suction port is formed by forming a hole through the cylinder end face so as to be orthogonal to the suction passage, and the through hole is the cylinder inner diameter. Is provided in a position not in contact with the inner diameter in the vicinity of the cylinder, and further, a drill is inserted obliquely from the cylinder inner diameter side so as to intersect with the through hole, and an elliptic suction port is formed on the cylinder inner diameter surface. Compressor.
【請求項4】請求項3において、上記シリンダ端面の貫
通した穴が、上記上軸受と下軸受で密閉される位置に穴
明けしたことを特徴とするロータリ圧縮機。
4. The rotary compressor according to claim 3, wherein the through hole of the cylinder end face is formed at a position where it is sealed by the upper bearing and the lower bearing.
JP1372092A 1992-01-29 1992-01-29 Rotary compressor Pending JPH05202875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1372092A JPH05202875A (en) 1992-01-29 1992-01-29 Rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1372092A JPH05202875A (en) 1992-01-29 1992-01-29 Rotary compressor

Publications (1)

Publication Number Publication Date
JPH05202875A true JPH05202875A (en) 1993-08-10

Family

ID=11841085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1372092A Pending JPH05202875A (en) 1992-01-29 1992-01-29 Rotary compressor

Country Status (1)

Country Link
JP (1) JPH05202875A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829960A (en) * 1996-04-30 1998-11-03 Tecumseh Products Company Suction inlet for rotary compressor
KR20040000584A (en) * 2002-06-21 2004-01-07 엘지전자 주식회사 Structure for reducing suctionloss of enclosed compressor
KR20040038330A (en) * 2002-10-31 2004-05-08 엘지전자 주식회사 Structure for reducing suction leakage of enclossed compressor
JP2011074772A (en) * 2009-09-29 2011-04-14 Sanyo Electric Co Ltd Rotary compressor and manufacturing method of the same
WO2011105085A1 (en) * 2010-02-24 2011-09-01 パナソニック株式会社 Rotary compressor
WO2023084722A1 (en) * 2021-11-12 2023-05-19 三菱電機株式会社 Compressor and refrigeration cycle device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829960A (en) * 1996-04-30 1998-11-03 Tecumseh Products Company Suction inlet for rotary compressor
KR20040000584A (en) * 2002-06-21 2004-01-07 엘지전자 주식회사 Structure for reducing suctionloss of enclosed compressor
KR20040038330A (en) * 2002-10-31 2004-05-08 엘지전자 주식회사 Structure for reducing suction leakage of enclossed compressor
JP2011074772A (en) * 2009-09-29 2011-04-14 Sanyo Electric Co Ltd Rotary compressor and manufacturing method of the same
WO2011105085A1 (en) * 2010-02-24 2011-09-01 パナソニック株式会社 Rotary compressor
CN102333957A (en) * 2010-02-24 2012-01-25 松下电器产业株式会社 Rotary compressor
JPWO2011105085A1 (en) * 2010-02-24 2013-06-20 パナソニック株式会社 Rotary compressor
WO2023084722A1 (en) * 2021-11-12 2023-05-19 三菱電機株式会社 Compressor and refrigeration cycle device

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