JPH01305187A - Low pressure type rotary compressor - Google Patents

Low pressure type rotary compressor

Info

Publication number
JPH01305187A
JPH01305187A JP13375588A JP13375588A JPH01305187A JP H01305187 A JPH01305187 A JP H01305187A JP 13375588 A JP13375588 A JP 13375588A JP 13375588 A JP13375588 A JP 13375588A JP H01305187 A JPH01305187 A JP H01305187A
Authority
JP
Japan
Prior art keywords
bearing
roller
sub
rotary compressor
main bearing
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
JP13375588A
Other languages
Japanese (ja)
Inventor
Isao Kawabe
功 川邉
Katsutoshi Kamishiro
神代 勝利
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP13375588A priority Critical patent/JPH01305187A/en
Publication of JPH01305187A publication Critical patent/JPH01305187A/en
Pending legal-status Critical Current

Links

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To ensure the sealing to the end surface of a roller and the oiling to a crank chamber, main bearing and sub-bearing by intercommunicating passages for high pressure gas in ring shaped grooves of the roller at 180 deg. apart to each other in the circumferential direction thereof and then mounting chip seals in the ring shaped grooves. CONSTITUTION:As a low pressure type rotary compressor is operated, the compression in the compression part thereof is started and, since two openings 35, 36 provided on a roller 30 are located at 180 deg. intervals in the circumferential direction, one of the openings 35, 36 is intercommunicated to the compression side and compressed gas is supplied in one of two concentric ring shaped grooves 31, 32 through passages 37, 38. Thus, a chip seal 33 provided in the ring shaped groove 31 or the chip seal 34 provided in the ring shaped groove 32 are forcedly touched on the end surface of a main bearing or sub-bearing so as to ensure the sealing of the roller end surface to the sliding surface of the main bearing/sub-bearing so as to ensure the oiling to a crank chamber, the main bearing and the sub-bearing.

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明はローラ端面のシール性の向上を図るようにした
低圧形ロータリコンプレッサに関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a low-pressure rotary compressor designed to improve the sealing performance of the end face of a roller.

(従来の技術) この種の低圧形ロータリコンプレッサは、密閉ケーシン
グ内に電動部および圧縮部を設け、密閉ケーシング内を
低圧としたものであり、密閉ケーシング1内に設けられ
た圧縮部2は、第8図および第9図に示すように図示し
ない電動機から延びる軸3の偏心大径部4の上下を支持
する主軸受5および副軸受6と、これら主軸受5および
副軸受6の間に位置するシリンダ7と、上記偏心大径部
4に外装されたローラ8とから構成され、上記ローラ8
に弾接するブレード9の協働作用でシリンダ7内に圧縮
室を形成している。
(Prior Art) This type of low-pressure rotary compressor has an electric part and a compression part in a hermetic casing to maintain a low pressure inside the hermetic casing. As shown in FIGS. 8 and 9, a main bearing 5 and a sub-bearing 6 are located between the main bearing 5 and sub-bearing 6 that support the upper and lower eccentric large-diameter portions 4 of the shaft 3 extending from an electric motor (not shown). It is composed of a cylinder 7 that rotates, and a roller 8 that is externally mounted on the eccentric large diameter portion 4.
A compression chamber is formed within the cylinder 7 by the cooperative action of the blade 9 that comes into elastic contact with the cylinder 7.

一方上記主軸受5および副軸受6の適当位置には吐出弁
部10が配設され、また上記主軸受5および副軸受6の
吐出弁部10を含む区域を覆うようにバルブカバー11
.12が装着されている。
On the other hand, a discharge valve part 10 is disposed at an appropriate position of the main bearing 5 and the sub-bearing 6, and a valve cover 11 is provided to cover the area of the main bearing 5 and the sub-bearing 6 including the discharge valve part 10.
.. 12 is installed.

さらに上記シリンダ7には密閉ケーシング1を通して延
びる吐出管13が接続されている。
Furthermore, a discharge pipe 13 extending through the sealed casing 1 is connected to the cylinder 7 .

すなわちシリンダ7には上下方向に延びる通路14とこ
の通路14の中間位置から横方向に延びる通路15とを
備え、上下方向に延びる通路14は主軸受5に設けた開
口16および副軸受6に設けた開口17に連通している
That is, the cylinder 7 includes a passage 14 extending in the vertical direction and a passage 15 extending laterally from an intermediate position of the passage 14. It communicates with the opening 17.

また吐出弁部10は、第10図に示すように吐出孔18
と吐出弁19とからなり、主軸受5に設けた吐出孔18
と副軸受6に設けた吐出孔18とは口径が異なっており
、シリンダ7に形成する切欠部20.21の角度を同じ
にすると小径の吐出孔18側の切欠部20が小さくなり
すぎて、小径の吐出孔18の断面積を有効に使えないか
、大径の吐出孔18側の切欠部20が大きくなりすぎて
、トップクリアランスボリュームが大となって再膨張に
よるロスが増大してしまう。
Further, the discharge valve section 10 has a discharge hole 18 as shown in FIG.
and a discharge valve 19, and a discharge hole 18 provided in the main bearing 5.
and the discharge hole 18 provided in the secondary bearing 6 have different diameters, and if the angles of the notches 20 and 21 formed in the cylinder 7 are the same, the notch 20 on the small diameter discharge hole 18 side will be too small. Either the cross-sectional area of the small-diameter discharge hole 18 cannot be used effectively, or the notch 20 on the large-diameter discharge hole 18 side becomes too large, resulting in an increase in top clearance volume and increased loss due to re-expansion.

(発明が解決しようとする課題) 上記形式の低圧形ロークリコンプレッサでは、シリンダ
7内に形成される圧縮室の圧力と密閉ケーシング1内の
圧力との差が大きいため、圧縮室内の圧縮ガスがローラ
端面と軸受面との間からクランク室を通り密閉ケーシン
グ1内の吸込み側にリークし、copが低下することに
なる。
(Problems to be Solved by the Invention) In the above-mentioned type of low-pressure type rotary compressor, since there is a large difference between the pressure in the compression chamber formed in the cylinder 7 and the pressure in the sealed casing 1, the compressed gas in the compression chamber is It leaks from between the roller end face and the bearing surface through the crank chamber to the suction side in the sealed casing 1, resulting in a decrease in cop.

そこでシリンダ7内に強制的に油を供給して、ローラ端
面と軸受面との間をオイルでシールすることで、圧縮ガ
スがローラ端面と軸受面との間から密閉ケーシング1内
の吸込み側にリークするのを防ぐようにした技術手段が
提案されたが、この場合には吐油量が増大するので実用
的ではない。
Therefore, by forcibly supplying oil into the cylinder 7 and sealing between the roller end surface and the bearing surface, the compressed gas flows from between the roller end surface and the bearing surface to the suction side in the sealed casing 1. Technical means to prevent leakage have been proposed, but in this case the amount of oil discharged increases and is not practical.

またローラ端面のシールが不十分であると、クランク室
、主軸受5および副軸受6への給油不良となり、運転時
の信頼性を損なうことになる。
Moreover, if the sealing of the roller end face is insufficient, the crank chamber, the main bearing 5, and the sub-bearing 6 will be lubricated inadequately, which will impair the reliability during operation.

本発明は上記した点に鑑みてなされたもので、ローラ端
面のシールおよびクランク室、主軸受および副軸受への
給油を確実に行い?Gるようにした低圧形ロークリコン
プレッサを提供することを目的とする。
The present invention has been made in view of the above-mentioned points, and is designed to ensure sealing of the roller end face and oil supply to the crank chamber, main bearing, and sub-bearing. An object of the present invention is to provide a low-pressure type rotary compressor that is designed to provide high pressure.

〔発明の構成〕[Structure of the invention]

(課題を解決するための手段) 本発明の低圧形ロータリコンプレッサは、密閉ケーシン
グ内に電動部および圧縮部を設け、密閉ケーシング内を
低圧とするとともに、圧縮部のシリング内に配置された
ローラの軸受に接する少なくとも一方の端面に2つの同
心のリング状溝を設け、これらリング状溝に高圧ガスを
導くための通路を周方向に180度の間隔を置いて連通
させ、かつこれらリング状溝内にチップシールを装着し
°C構成される。
(Means for Solving the Problems) The low-pressure rotary compressor of the present invention includes an electric part and a compression part in a sealed casing to maintain a low pressure in the sealed casing, and a roller disposed in a sill of the compression part. Two concentric ring-shaped grooves are provided on at least one end surface in contact with the bearing, and passages for introducing high-pressure gas to these ring-shaped grooves are communicated with each other at intervals of 180 degrees in the circumferential direction. A chip seal is attached to the unit and the temperature is set to °C.

(作 用) 本発明の低圧形ロークリコンプレッサにおいては、ロー
ラの端面に設けたリング状溝内に配置したチップシール
が、このリング状溝内に供給される高圧ガスにより軸受
の面に圧接するので、ローラ端面と軸受面との間のシー
ルが確実となり、ローラ端面と軸受面との間から圧縮ガ
スが密閉ケーシング1内の吸込み側にリークすることが
なく、ローラ端面のシールおよびクランク室、主軸受5
および副軸受6への給油が安定し、運転時の信頼性も向
上する。
(Function) In the low-pressure type rotary compressor of the present invention, the chip seal placed in the ring-shaped groove provided on the end face of the roller is pressed against the surface of the bearing by the high-pressure gas supplied into the ring-shaped groove. Therefore, the seal between the roller end surface and the bearing surface is ensured, and compressed gas does not leak from between the roller end surface and the bearing surface to the suction side in the sealed casing 1, and the sealing of the roller end surface and the crank chamber, Main bearing 5
Also, the oil supply to the secondary bearing 6 is stabilized, and reliability during operation is also improved.

(実施例) 以下本発明の一実施例を図面につき説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.

なお第1図ないし第3図において第8図および第9図と
同一部材については同一符号を付す。
In FIGS. 1 to 3, the same members as in FIGS. 8 and 9 are designated by the same reference numerals.

第1図において符号30は電動機から延びる幀3の偏心
大径部4に外装されたローラであって、このローラ30
の主軸受5および副軸受6に接する端面には2つの同心
のリング状溝31.32が設けられており、外側に位置
するリング状溝31には、チップシール33が、また内
側に位置するリング状溝32には、チップシール34が
それぞれ公告されている。上記チップシール33とチッ
プシール34とは異なる幅を有するように設定されてい
る。
In FIG. 1, reference numeral 30 denotes a roller mounted on the eccentric large diameter portion 4 of the fence 3 extending from the electric motor.
Two concentric ring-shaped grooves 31 and 32 are provided on the end surface in contact with the main bearing 5 and the sub-bearing 6, and a chip seal 33 is provided in the ring-shaped groove 31 located on the outside, and a chip seal 33 is also located on the inside. A tip seal 34 is provided in each of the ring-shaped grooves 32 . The tip seal 33 and the tip seal 34 are set to have different widths.

一方上記ローラ30の外周面には周方向に180度の間
隔をおいて2つの開口35.36が形成されている。そ
して一方の開口35は通路37を介して上記リング状溝
31に連通し、他方の開口36は通路38を介して上記
リング状溝32に連通している。また上記2つの開口3
5゜36は図示しない高圧ガスを導くための通路に連通
されている。
On the other hand, two openings 35 and 36 are formed on the outer peripheral surface of the roller 30 at an interval of 180 degrees in the circumferential direction. One opening 35 communicates with the ring-shaped groove 31 via a passage 37, and the other opening 36 communicates with the ring-shaped groove 32 via a passage 38. Also, the above two openings 3
5° 36 communicates with a passage (not shown) for introducing high pressure gas.

しかして低圧形ロータリコンプレッサを運転すると、圧
縮部2の圧縮が開始されるか、ローラに設けたた2つの
開口35.36は周方向に180度の間隔をおいて位置
するので、2つの開口の一方は圧縮側に連通し2つの開
口35.36より通路37または通路38を通って2つ
の同心のリング状溝31.32の一方に圧縮ガスが供給
され、リング状溝31に設けたチップシール33または
リング状溝32に設けたチップシール34が主軸受5ま
たは副軸受6の端面に密着し、ローラ端面と軸受のff
l動面とのシールを確実にする。
When the low-pressure rotary compressor is operated, compression in the compression section 2 is started, or since the only two openings 35 and 36 provided in the roller are located at an interval of 180 degrees in the circumferential direction, the two openings One of the two openings 35.36 communicates with the compression side, and compressed gas is supplied to one of the two concentric ring-shaped grooves 31.32 through the passage 37 or 38, and the tip provided in the ring-shaped groove 31 The seal 33 or the chip seal 34 provided in the ring-shaped groove 32 is in close contact with the end face of the main bearing 5 or the sub-bearing 6, and the ff between the roller end face and the bearing is
l Ensure a secure seal with the moving surface.

第4図ないし第7図は本発明による低圧形ロータリコン
プレッサの変形例を示し、第4図および第5図に示す変
形例においては、シリンダ7のブレード通路部9aと異
なる位置にシリンダ内部に連通する吐出ボート40およ
びこの吐出ボート40を開閉する吐出弁41、たとえば
U形弁を設けた密閉空間部42を形成し、この密閉空間
部42とブレード通路部9aの背後室43とを連通孔4
4で接続している。また上記密閉空間部42の上端部お
よび下端部は主軸受5または副軸受6によりシールされ
ている。そのためシリンダ7内の圧縮ガスは吐出ボート
40および吐出弁41を介して密閉空間部42から吐出
管13を通り外部に導かれ、バルブカバーが不要になり
、バルブカバーの容積分だけ内部空間が広くなり、入油
量をアップでき、しかもバルブカバーと軸受部との間の
シールが必要となくなる。
4 to 7 show modified examples of the low-pressure rotary compressor according to the present invention. In the modified examples shown in FIGS. 4 and 5, the blade passage portion 9a of the cylinder 7 is connected to the inside of the cylinder at a different position. A closed space 42 is formed in which a discharge boat 40 is provided, and a discharge valve 41 for opening and closing the discharge boat 40, such as a U-shaped valve, is provided, and this closed space 42 and a back chamber 43 of the blade passage section 9a are connected through a communication hole 4.
Connected with 4. Further, the upper and lower ends of the sealed space 42 are sealed by the main bearing 5 or the sub-bearing 6. Therefore, the compressed gas in the cylinder 7 is guided from the closed space 42 to the outside through the discharge pipe 13 via the discharge boat 40 and the discharge valve 41, eliminating the need for a valve cover and increasing the internal space by the volume of the valve cover. Therefore, the amount of oil input can be increased, and there is no need for a seal between the valve cover and the bearing.

第6図に示す変形例においては、吐出弁部50゜50a
は吐出孔51.51aと吐出弁52゜52aととからな
り、主軸受5に設けた吐出孔51と副軸受6に設けた吐
出孔51aとは口径が異なっており、またシリンダ7の
主軸受5側に形成した切欠部53は、シリンダ7の副生
軸受5側に形成した切欠部54と異なる角度に設定され
ている。
In the modification shown in FIG. 6, the discharge valve portion 50° 50a
consists of a discharge hole 51.51a and a discharge valve 52.52a, and the discharge hole 51 provided in the main bearing 5 and the discharge hole 51a provided in the sub-bearing 6 have different diameters. The notch 53 formed on the 5 side is set at a different angle from the notch 54 formed on the by-product bearing 5 side of the cylinder 7.

すなわち主軸受5に設けた吐出孔51は口径d1で、副
生軸受5に設けた吐出孔51aは口径d2で、dlくd
2であり、主軸受5側に形成した切欠部53の傾斜角度
はθ1、副生軸受5側に形成した切欠部54の傾斜角度
はθ2になっている。
That is, the discharge hole 51 provided in the main bearing 5 has a diameter d1, and the discharge hole 51a provided in the by-product bearing 5 has a diameter d2.
2, the inclination angle of the notch 53 formed on the main bearing 5 side is θ1, and the inclination angle of the notch 54 formed on the by-product bearing 5 side is θ2.

しかしてシリンダ7の高さをHc、切欠部53の高さを
Hl、切欠部54の高さをH2とすれば、シリンダ7の
体積Vは、次の式により求められる。
Therefore, if the height of the cylinder 7 is Hc, the height of the notch 53 is Hl, and the height of the notch 54 is H2, the volume V of the cylinder 7 can be determined by the following equation.

一方ガスの流路抵抗という面からは、第7図に示されて
いるように(H]−+ H2) / Hcであることが
有利である。
On the other hand, from the viewpoint of gas flow path resistance, it is advantageous to be (H]-+H2)/Hc as shown in FIG.

上式によれば「が大きい場合には、H1+H2を大とす
るためにはθを大きくとるど、トップクリアランスボリ
ュームVが非常に大きくなるが、rが小さい場合には、
θを大きくとっても、トップクリアランスボリュームV
が大きくならない。
According to the above formula, if r is large, the top clearance volume V will become very large by increasing θ in order to increase H1+H2, but if r is small,
Even if θ is set large, the top clearance volume V
does not become large.

小径のポートdlに対してのθ1をθ2より大とするこ
とにより、トップクリアランスボリューム■を小さ(し
、かつ(H1十H2)/Hcの値を大きくして通路抵抗
を減することが可能となる。
By setting θ1 larger than θ2 for the small-diameter port dl, it is possible to reduce the top clearance volume (■) and increase the value of (H1 + H2)/Hc to reduce the passage resistance. Become.

よって高効率のロークリコンブ1ノツサを得ることがで
きる。
Therefore, a highly efficient low recombination unit can be obtained.

さらにθを大とすると騒音が増加することも知られてい
るが、これに対しても、θを大とするのは小径側のボー
トであるため、騒音の増加を最小限におさえることがで
きる。
Furthermore, it is known that increasing θ increases noise, but since θ is increased for boats with smaller diameters, the increase in noise can be kept to a minimum. .

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、ローラの端面を介し
て圧縮ガスがクランク室(低圧側)へリークしないので
、大幅な体積効率が図られ、高COPの低圧形ロータリ
コンプレッサとなり、またローラの端面のシールが完全
になり、クランク室、主軸受および副軸受への給油も安
定しコンプレッサの信頓性も向上するという効果を奏す
る。
As described above, according to the present invention, compressed gas does not leak into the crank chamber (low-pressure side) through the end face of the roller, so significant volumetric efficiency is achieved, resulting in a low-pressure rotary compressor with a high COP. The end face of the compressor is completely sealed, the oil supply to the crank chamber, main bearing, and sub-bearing is stabilized, and the reliability of the compressor is improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による低圧形ロークリコンプレッサの圧
縮部の断面図、第2図はローラ部分の断面図、第3図は
要部説明図、第4図ないし第7図は本発明の変形例を示
す図、第8図ないし第10図は従来の低圧形ロークリコ
ンプレッサを示す図である。 3・・・軸、4・・・偏心大径部、5・・・主軸受、6
・・・副軸受6.7・・・シリンダ7.30・・・ロー
ラ、31・・・リング状溝、32・・・リング状溝、3
3・・・チ・ノブシール、34・・・チップシール。 出願人代理人  佐  藤  −雄 り 第1図 へ 第2図    第3図 第4図 第8図 q 1ソ 第9図      第10図
Fig. 1 is a sectional view of the compression part of the low pressure type rotary compressor according to the present invention, Fig. 2 is a sectional view of the roller part, Fig. 3 is an explanatory view of the main part, and Figs. 4 to 7 are modifications of the present invention. Examples of the drawings, FIGS. 8 to 10, show conventional low-pressure rotary compressors. 3... Shaft, 4... Eccentric large diameter part, 5... Main bearing, 6
... Secondary bearing 6.7 ... Cylinder 7.30 ... Roller, 31 ... Ring-shaped groove, 32 ... Ring-shaped groove, 3
3... Chi knob seal, 34... Chip seal. Applicant's Representative Sato - Tori Figure 1 Figure 2 Figure 3 Figure 4 Figure 8 q 1 So Figure 9 Figure 10

Claims (1)

【特許請求の範囲】[Claims] 密閉ケーシング内に電動部および圧縮部を設け、密閉ケ
ーシング内を低圧とした低圧形ロータリコンプレッサに
おいて、上記圧縮部のシリンダ内に配置されたローラの
軸受に接する少なくとも一方の端面に2つの同心のリン
グ状溝を設け、これらリング状溝に高圧ガスを導くため
の通路を周方向に180度の間隔を置いて連通させ、か
つこれらリング状溝内にチップシールを装着したことを
特徴とする低圧形ロータリコンプレッサ。
In a low-pressure rotary compressor that includes an electric part and a compression part in a hermetically sealed casing and has a low pressure inside the hermetically sealed casing, two concentric rings are provided on at least one end surface in contact with a bearing of a roller disposed in a cylinder of the compression part. A low-pressure type characterized in that a ring-shaped groove is provided, passages for guiding high-pressure gas are communicated with each other at intervals of 180 degrees in the circumferential direction, and a tip seal is installed in these ring-shaped grooves. rotary compressor.
JP13375588A 1988-05-31 1988-05-31 Low pressure type rotary compressor Pending JPH01305187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13375588A JPH01305187A (en) 1988-05-31 1988-05-31 Low pressure type rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13375588A JPH01305187A (en) 1988-05-31 1988-05-31 Low pressure type rotary compressor

Publications (1)

Publication Number Publication Date
JPH01305187A true JPH01305187A (en) 1989-12-08

Family

ID=15112186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13375588A Pending JPH01305187A (en) 1988-05-31 1988-05-31 Low pressure type rotary compressor

Country Status (1)

Country Link
JP (1) JPH01305187A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498377B1 (en) * 2002-11-19 2005-07-01 엘지전자 주식회사 Apparatus for compressed a refrigerant of rotary compressor
JP2013525085A (en) * 2010-03-10 2013-06-20 クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング Air dryer cartridge and method of operating an air dryer cartridge
WO2023060816A1 (en) * 2021-10-15 2023-04-20 广州市德善数控科技有限公司 Low-pressure chamber rotary compressor and air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498377B1 (en) * 2002-11-19 2005-07-01 엘지전자 주식회사 Apparatus for compressed a refrigerant of rotary compressor
JP2013525085A (en) * 2010-03-10 2013-06-20 クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング Air dryer cartridge and method of operating an air dryer cartridge
WO2023060816A1 (en) * 2021-10-15 2023-04-20 广州市德善数控科技有限公司 Low-pressure chamber rotary compressor and air conditioner

Similar Documents

Publication Publication Date Title
GB2353333A (en) Check valve arrangements for scroll compressors
KR100343688B1 (en) Gas-pressure bypass structure for scroll compressor
JPH01305187A (en) Low pressure type rotary compressor
JPH11324959A (en) Sealed rotary compressor
KR0137413B1 (en) Horizontal rotary compressor
KR100360236B1 (en) Structure for reducing gas-leakage of scrollcompressor
JPH03185291A (en) Rotary compressor
JPS60224987A (en) Scroll type compressor
JPH01190984A (en) Rotary compressor
JPH0579481A (en) Rotary compressor
JPS6023517Y2 (en) hermetic compressor
JPH0823351B2 (en) Lubrication structure of shaft seal mechanism in vane compressor
KR20070072094A (en) Oil supply structure of high-pressure type scroll compressor
KR100259811B1 (en) Device for preventing axial flow leak of scroll compressor
KR100308268B1 (en) Backward flow preventing device of compression remaining gas for hermetic type rotary compressor
JPH0726633B2 (en) Silencer for rotary compressor
JP2005105990A (en) Scroll compressor
KR100367993B1 (en) device for sealing back pressure chamber in scroll-type fluid machine
KR100214632B1 (en) A protecting structure of inhale gas overheating for a scroll compressor
KR100273428B1 (en) Structure for reducing noise in rotary compressor
KR20240035305A (en) Scroll compressor
KR100273423B1 (en) Structure for preventing overpressure in hermetic type rotary compressor
KR100565258B1 (en) Apparatus for reducing oil discharge of high pressure scroll compressor
KR20010057494A (en) Refrigerant gas suction structure for scroll compressor
KR100304556B1 (en) Structure for reducing noise of rotary compressor