JPS63176691A - Multi cylinder rotary compressor - Google Patents
Multi cylinder rotary compressorInfo
- Publication number
- JPS63176691A JPS63176691A JP654087A JP654087A JPS63176691A JP S63176691 A JPS63176691 A JP S63176691A JP 654087 A JP654087 A JP 654087A JP 654087 A JP654087 A JP 654087A JP S63176691 A JPS63176691 A JP S63176691A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- bearing part
- rotary
- discharge
- compression element
- 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 abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 21
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
Landscapes
- 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
この発明は複数のシリンダ内で圧縮された冷媒を夫々別
の吐出ポートから吐出するようにした多気筒回転圧縮機
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an improvement in a multi-cylinder rotary compressor in which refrigerant compressed in a plurality of cylinders is discharged from separate discharge ports.
（ロ）従来の技術
従来の多気筒回転圧縮機は例えば特開昭５９−１０５９
９２号公報に示されているように構成されている。ここ
で、この公報を参考に従来例を説明する。５０は密閉容
器で、この容器内には上側に電動要素５１が、下側にこ
の電動要素の回転軸５２により駆動される２個の回転圧
縮要素５３゜５４が夫々収納されている。５５は回転圧
縮要素５３．５４を区画する中間仕切板である。回転圧
縮要素５３．５４はシリンダ５６．５７と、回転軸５２
の夫々１８０°回転角をずらした偏心部５８．５９によ
りシリンダ５６．５７内を回転するローラ６０，６１と
、シリンダ５６．５７の開口を封じる上軸受部６２と下
軸受部６３とにより構成されている。上軸受部６２と下
軸受部６３とには夫々シリンダ５６．５７内に連通した
吐出孔６４．６５が設けられている。この吐出孔は夫々
上軸受部６２と下軸受部６３とに取付けた吐出弁６６．
６７で開閉きれている。(b) Conventional technology A conventional multi-cylinder rotary compressor is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-1059.
The structure is as shown in Japanese Patent No. 92. Here, a conventional example will be explained with reference to this publication. Reference numeral 50 denotes a closed container, in which an electric element 51 is housed on the upper side, and two rotary compression elements 53 and 54 driven by a rotating shaft 52 of the electric element are housed on the lower side. 55 is an intermediate partition plate that partitions the rotary compression elements 53 and 54. The rotary compression element 53.54 has a cylinder 56.57 and a rotating shaft 52.
It is composed of rollers 60 and 61 which rotate inside the cylinder 56 and 57 by eccentric parts 58 and 59 whose rotation angles are shifted by 180 degrees, and an upper bearing part 62 and a lower bearing part 63 which close the opening of the cylinder 56 and 57. ing. The upper bearing part 62 and the lower bearing part 63 are each provided with a discharge hole 64.65 that communicates with the inside of the cylinder 56.57. These discharge holes are connected to discharge valves 66. which are attached to the upper bearing part 62 and the lower bearing part 63, respectively.
It can be opened and closed at 67.
この構造の多気筒回転圧縮機では夫々のシリンダ５６．
５７内で圧縮きれた冷媒で吐出弁６６．６７を開放し、
この冷媒を密閉容器５０内に吐出させて、冷凍運転が行
なわれるようにしている。In a multi-cylinder rotary compressor with this structure, each cylinder 56.
The discharge valves 66 and 67 are opened with the refrigerant completely compressed in the refrigerant 57,
This refrigerant is discharged into the closed container 50 to perform the freezing operation.
（ハ）発明が解決しようとする問題点
しかしながら、吐出弁６６．６７は吐出孔６４．６５を
閉じた状態で運転を開始するため、特に液冷媒やオイル
等の液分が溜りやすい下部のシリンダ５７内で液圧縮等
が行なわれバルブ破損や軸受部の損傷等を起こす問題が
あった。(c) Problems to be Solved by the Invention However, since the discharge valves 66 and 67 start operating with the discharge holes 64 and 65 closed, the lower part of the cylinder where liquids such as liquid refrigerant and oil tend to accumulate is particularly important. There was a problem that liquid compression etc. were performed within the valve 57, causing damage to the valve and the bearing.
この発明は上記の問題を解決するために、運転停止時に
吐出弁で開閉される下軸受部の吐出孔を開放し、下部の
シリンダ内に浸入した液分が圧縮されずにこの吐出孔か
ら排出されるようにして液圧縮が行なわれないようにす
ることを目的としたものである。In order to solve the above problem, this invention opens a discharge hole in the lower bearing part that is opened and closed by a discharge valve when the operation is stopped, and the liquid that has entered the lower cylinder is discharged from this discharge hole without being compressed. The purpose of this is to prevent liquid compression from occurring.
（ニ）問題点を解決するための手段
この発明は吐出弁で開閉される下軸受部の吐出孔を運転
開始時に開放しているものである。(d) Means for Solving the Problems According to the present invention, the discharge hole in the lower bearing portion, which is opened and closed by a discharge valve, is opened at the start of operation.
（ホ）作用
この発明は上記のように構成したことにより、停止時に
液冷媒やオイル等の液分が溜りやすい下部シリンダ内と
連通ずる吐出孔を吐出弁で室がないようにし、運転開始
時に液分をシリンダ内からローラの回転で排除し、液圧
縮が行なわれにくくしたものである。(E) Function By having the above-described structure, the discharge hole communicating with the inside of the lower cylinder where liquid refrigerant, oil, etc. tend to accumulate when stopped is made so that there is no chamber with a discharge valve, and when the operation is started, The liquid is removed from the cylinder by the rotation of rollers, making it difficult to compress the liquid.
（へ）実施例
以下この発明を第１図及び第２図に示す実施例に基いて
説明する。(f) Examples The present invention will be explained below based on the examples shown in FIGS. 1 and 2.
１は底部にオイルの貯溜きれたオイル溜２を有する密閉
容器で、この容器内には上側に電動要素３が、下側にこ
の電動要素の回転軸４により駆動される２個の回転圧縮
要素５，６が夫々収納されている。７は回転圧縮要素５
，６を区画する中間仕切板である。回転圧縮要素５，６
はシリンダ８．９と、回転軸４の夫々１８０°回転角を
ずらした偏心部１０．１１によりシリンダ８，９内を回
転するローラ１２，１３と、このローラに接してシリン
ダ８，９内を高圧室と低圧室とに区画するベーン１４，
１５と、シリンダ８，９の開口を封じる上軸受部１６と
下軸受部１７とにより構成されている。上軸受部１６と
下軸受部１７とには夫々シリンダ８，９内の高圧室に連
通した吐出孔１８．１９が設けられている。この吐出孔
は夫々上軸受部１６と下軸受部１７とに取付けた吐出弁
２０．２１で開閉されている。この吐出弁は上軸受部１
６と下軸受部１７とに取付けられたカップマフラ一体２
２．２３で覆われている。上部カップマフラ一体２２に
は密閉容器１内に連通する吐出口２４が設けられている
。また、下部カップマフラ一体２３内はシリンダ８，９
と中間仕切板７とに設けた連通孔２５を介して上部カッ
プマフラ一体２２内に連通している。Reference numeral 1 denotes a closed container having an oil reservoir 2 in which oil is stored at the bottom. Inside this container, an electric element 3 is placed on the upper side, and two rotary compression elements driven by a rotating shaft 4 of this electric element are placed on the lower side. 5 and 6 are stored respectively. 7 is a rotary compression element 5
, 6. Rotary compression elements 5, 6
is a cylinder 8.9, rollers 12 and 13 that rotate inside the cylinders 8 and 9 by eccentric portions 10.11 that are rotated by 180 degrees from each other on the rotating shaft 4, and rollers 12 and 13 that rotate inside the cylinders 8 and 9 in contact with these rollers. Vane 14 partitioned into a high pressure chamber and a low pressure chamber,
15, and an upper bearing portion 16 and a lower bearing portion 17 that close the openings of the cylinders 8 and 9. The upper bearing part 16 and the lower bearing part 17 are provided with discharge holes 18, 19 which communicate with the high pressure chambers in the cylinders 8, 9, respectively. These discharge holes are opened and closed by discharge valves 20 and 21 attached to the upper bearing part 16 and the lower bearing part 17, respectively. This discharge valve is the upper bearing part 1
6 and the cup muffler integrated 2 attached to the lower bearing part 17
2.23 is covered. The upper cup muffler unit 22 is provided with a discharge port 24 that communicates with the inside of the closed container 1. Also, inside the lower cup muffler integral 23 are cylinders 8 and 9.
It communicates with the upper cup muffler unit 22 through a communication hole 25 provided in the upper cup muffler and the intermediate partition plate 7.
下軸受部１７に取付けられた吐出弁２１は下方にわん曲
して吐出孔１９との間に隙間を形成している。The discharge valve 21 attached to the lower bearing part 17 is bent downward to form a gap with the discharge hole 19.
このように構成された多気筒回転圧縮機において、回転
圧縮要素５，６のシリンダ８，９内に流大した冷媒は１
８０°回転角をずらした偏心部１０．１１によって回転
するローラ１２，１３とベーン１４，１５との協働によ
り圧縮され、吐出弁２０．２１を開放して吐出孔１８．
１９からカップマフラ一体２２．２３内に吐出される。In the multi-cylinder rotary compressor configured in this way, the refrigerant flowing into the cylinders 8 and 9 of the rotary compression elements 5 and 6 is 1
The rollers 12, 13 and the vanes 14, 15 rotate by the eccentric part 10.11 with a rotation angle shifted by 80 degrees, and are compressed by cooperation between the rollers 12, 13 and the vanes 14, 15, and the discharge valve 20.21 is opened to open the discharge hole 18.
19 and is discharged into the cup muffler unit 22, 23.
そして、上部カップマフラ一体２２内に吐出された冷媒
は吐出口２４から密閉容器１内に吐出され、下部カップ
マフラ一体２３内に吐出された冷媒は連通孔２５を通り
上部カップマフラ一体２２の吐出口２４から密閉容器１
内に吐出される。この密閉容器内の冷媒は外部冷却回路
を循環して冷却作用を行なっている。The refrigerant discharged into the upper cup muffler integral 22 is discharged from the discharge port 24 into the closed container 1, and the refrigerant discharged into the lower cup muffler integral 23 passes through the communication hole 25 and is discharged from the upper cup muffler integral 22. Closed container 1 from outlet 24
discharged inside. The refrigerant in this sealed container is circulated through an external cooling circuit to perform a cooling effect.
下部の回転圧縮要素６は密閉容器１内のオイル渭２のオ
イル中に大部分が浸漬され、停止時にシリシダ９内にオ
イル溜２のオイルや液冷媒等の液分が浸入しやすくなっ
ていた。そのため、下部の回転圧縮要素６は下軸受部１
７に取付けた吐出弁２１を下劣にわん向きせて、この吐
出弁で開閉される吐出孔１９との間に隙間が形成される
ようにし、運転開始時にシリンダ９内に浸入している液
分がローラ１３の回転により圧縮されずに吐出孔１９か
らカップマフラ一体２３内に排出されるようにしている
。そして、わん曲した吐出弁２１は上部の回転圧縮要素
５で密閉容器１内の圧力が上昇したときに、ガス圧で吐
出孔１９を閉じるようにしており、下部の回転圧縮要素
６が通常の圧縮を行なうようにしている。Most of the lower rotary compression element 6 was immersed in the oil in the oil reservoir 2 in the sealed container 1, and liquid components such as oil and liquid refrigerant in the oil reservoir 2 easily entered into the cylinder 9 when the engine was stopped. . Therefore, the lower rotary compression element 6 is
The discharge valve 21 attached to the cylinder 7 is oriented so that a gap is formed between the discharge valve 21 and the discharge hole 19 that is opened and closed by this discharge valve, and the liquid that has entered the cylinder 9 at the start of operation is removed. is discharged from the discharge hole 19 into the cup muffler integral 23 without being compressed by the rotation of the roller 13. The curved discharge valve 21 closes the discharge hole 19 with gas pressure when the pressure inside the closed container 1 increases with the rotary compression element 5 at the upper part, and the rotary compression element 6 at the lower part closes the discharge hole 19 when the pressure inside the closed container 1 increases. I am trying to perform compression.
この発明は運転開始時に液圧縮が行なわれやすい下部の
回転圧縮要素６の吐出弁２１をわん曲させて吐出孔１９
を開放するようにしたことにより、起動時に起こりやす
い液圧縮を防止するとともに、運転時に圧縮が行なわれ
るようにしたものである。In this invention, the discharge valve 21 of the lower rotary compression element 6 where liquid compression is likely to be performed at the start of operation is bent, and the discharge hole 19 is bent.
By opening the valve, it is possible to prevent the liquid from being compressed, which tends to occur during startup, and to allow compression to occur during operation.
（ト）発明の効果
この発明の多気筒回転圧縮機は吐出弁で開放される下軸
受部の吐出孔を運転開始時に開放しているのであるから
、停止時に液冷媒やオイル等の液分が下部のシリンダ内
に浸入した状態で起動しても、このシリンダ内の液分が
ローラで圧縮されずに吐出孔から排出され、液圧縮を防
止できる。(G) Effects of the Invention In the multi-cylinder rotary compressor of the present invention, the discharge hole in the lower bearing part that is opened by the discharge valve is opened at the start of operation, so liquid components such as liquid refrigerant and oil are discharged when the machine is stopped. Even if the liquid in the lower cylinder is activated when it has entered the cylinder, the liquid in this cylinder is discharged from the discharge hole without being compressed by the rollers, thereby preventing liquid compression.
第１図及び第２図はこの発明を示し、第１図は多気筒回
転圧縮機の縦断面図、第２図は弁装置を示す要部拡大図
、第３図は従来例を示す多気筒回転圧縮機の縦断面図で
ある。
１・・・密閉容器、 ３・・・電動要素、４・・・回転
軸、５．６・・・回転圧縮要素、 ７・・・中間仕切
板、８．９・・・シリンダ、 １０．１１・・・偏心
部、 １２．１３・・・ローラ、 １４ 、１．５
・・・ベーン、 １６・・・上軸受部、 １７・・
・下軸受部、 １８．１９・・・吐出孔、 ２０．
２１・・・吐出弁。
田願人 三洋電機株式会社
代理人 弁理士 西野卓嗣 外１名
第１図
＝８−1 and 2 show the present invention, FIG. 1 is a longitudinal sectional view of a multi-cylinder rotary compressor, FIG. 2 is an enlarged view of the main part showing the valve device, and FIG. 3 is a multi-cylinder rotary compressor showing a conventional example. FIG. 2 is a longitudinal cross-sectional view of a rotary compressor. DESCRIPTION OF SYMBOLS 1... Sealed container, 3... Electric element, 4... Rotating shaft, 5.6... Rotating compression element, 7... Intermediate partition plate, 8.9... Cylinder, 10.11 ...Eccentric part, 12.13...Roller, 14, 1.5
...Vane, 16...Upper bearing part, 17...
・Lower bearing part, 18.19...Discharge hole, 20.
21...Discharge valve. Taganito Sanyo Electric Co., Ltd. Representative Patent Attorney Takuji Nishino and 1 other person Figure 1 = 8-
Claims (1)
素を夫々収納し、この回転圧縮要素を、回転軸の軸方向
に中間仕切板を介して複数のシリンダと、前記回転軸の
偏心部で駆動されて各シリンダの内周面に沿って回転す
るローラと、このローラの外周に接してシリンダ内を区
画するベーンと、このシリンダの端面に取付けられてこ
のシリンダ内を封じる軸受部とで構成し、この上下の軸
受部に夫々吐出孔を設け、この吐出孔を独立した吐出弁
で開閉するようにした多気筒回転圧縮機において、吐出
弁で開閉される下軸受部の吐出孔は運転開始時に開放さ
れていることを特徴とする多気筒回転圧縮機。1. An electric element is housed in the upper side of the closed container, and a rotary compression element is housed in the lower side, and the rotary compression element is connected to a plurality of cylinders via an intermediate partition plate in the axial direction of the rotary shaft, and a rotary compression element to the rotary shaft. A roller that is driven by an eccentric part and rotates along the inner peripheral surface of each cylinder, a vane that contacts the outer periphery of this roller and partitions the inside of the cylinder, and a bearing that is attached to the end surface of this cylinder and seals the inside of this cylinder. In a multi-cylinder rotary compressor, the upper and lower bearing parts each have a discharge hole, and each discharge hole is opened and closed by an independent discharge valve. is a multi-cylinder rotary compressor characterized by being opened at the start of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP654087A JPS63176691A (en) | 1987-01-14 | 1987-01-14 | Multi cylinder rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP654087A JPS63176691A (en) | 1987-01-14 | 1987-01-14 | Multi cylinder rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63176691A true JPS63176691A (en) | 1988-07-20 |
Family
ID=11641176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP654087A Pending JPS63176691A (en) | 1987-01-14 | 1987-01-14 | Multi cylinder rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63176691A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336799B1 (en) * | 1999-08-05 | 2002-01-08 | Sanyo Electric Co., Ltd. | Multi-cylinder rotary compressor |
| KR100577121B1 (en) | 2005-01-03 | 2006-05-10 | 삼성전자주식회사 | Variable capacity rotary compressor |
| KR100814019B1 (en) | 2005-08-23 | 2008-03-17 | 삼성전자주식회사 | Multi-Cylinder Type Rotary Compressor |
| WO2012043017A1 (en) * | 2010-09-27 | 2012-04-05 | 大豊工業株式会社 | Vane pump |
-
1987
- 1987-01-14 JP JP654087A patent/JPS63176691A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336799B1 (en) * | 1999-08-05 | 2002-01-08 | Sanyo Electric Co., Ltd. | Multi-cylinder rotary compressor |
| US6524086B2 (en) * | 1999-08-05 | 2003-02-25 | Sanyo Electric Co., Ltd. | Multi-cylinder rotary compressor |
| KR100577121B1 (en) | 2005-01-03 | 2006-05-10 | 삼성전자주식회사 | Variable capacity rotary compressor |
| KR100814019B1 (en) | 2005-08-23 | 2008-03-17 | 삼성전자주식회사 | Multi-Cylinder Type Rotary Compressor |
| WO2012043017A1 (en) * | 2010-09-27 | 2012-04-05 | 大豊工業株式会社 | Vane pump |
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