JPH04143489A - Scroll type fluid machine - Google Patents
Scroll type fluid machineInfo
- Publication number
- JPH04143489A JPH04143489A JP26819690A JP26819690A JPH04143489A JP H04143489 A JPH04143489 A JP H04143489A JP 26819690 A JP26819690 A JP 26819690A JP 26819690 A JP26819690 A JP 26819690A JP H04143489 A JPH04143489 A JP H04143489A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pool
- motor
- passage
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 14
- 238000013019 agitation Methods 0.000 abstract description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003305 oil spill Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009736 wetting 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】
（産業上の利用分野）
本発明は、冷凍装置における冷媒圧縮機等に利用される
スクロール形流体機械に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a scroll-type fluid machine used as a refrigerant compressor in a refrigeration system.
（従来の技術）
従来、特開平２−９１４８８号公報に開示され且つ第４
図に示すように、ケーシング（Ｃ）の内部上方に、ハウ
ジング（Ｈ）を介して固定側の第１スクロール（Ｆ）と
可動側の第２スクロール（０）とを配設すると共に、そ
の下方に、モータ（Ｍ）を配設して、駆動軸（Ｄ）の上
部軸端に設けるピン部（Ｐ）を前記可動スクロール（０
）のボス筒（Ｔ）に嵌合し、前記駆動軸（Ｄ）の回転に
より前記第１スクロール（０）を第２スクロール（Ｆ）
に対し回動させ、吸入管（Ｘ）から吸入する作動流体を
作動室（Ｅ）内で圧縮し、吐出管（Ｙ）から外部に取り
出すようにしている。(Prior art) Conventionally, it was disclosed in Japanese Unexamined Patent Publication No. 2-91488 and
As shown in the figure, the first scroll (F) on the fixed side and the second scroll (0) on the movable side are disposed above the inside of the casing (C) via the housing (H), and the lower part thereof , a motor (M) is disposed, and a pin portion (P) provided at the upper shaft end of the drive shaft (D) is connected to the movable scroll (0
), and the first scroll (0) is fitted into the boss cylinder (T) of the second scroll (F) by rotation of the drive shaft (D).
The working fluid sucked from the suction pipe (X) is compressed within the working chamber (E) and taken out from the discharge pipe (Y).
そして、各摺動部で円滑な摺動動作を行わせるため、一
般に、前記駆動軸（Ｄ）の内部に底部油溜から延びる給
油通路（Ｒ）を設けて、該給油通路（Ｒ）の上部を前記
ピン部（Ｐ）の端面と前記ボス筒（Ｔ）の底面との間の
嵌合隙間（Ｇ）に開口すると共に、前記ピン部（Ｐ）の
外周部に、前記嵌合隙間（Ｇ）をケーシング（Ｃ）の内
部に連通させる圧抜き兼油流出溝（Ｓ）を切欠き形成し
、前記給油通路（Ｒ）に汲上げる油の循環路を形成して
、軸受メタル（Ｎ）や前記ピン部（Ｐ）とボス筒（Ｔ）
との間の嵌合部等に給油し、給油後の油を、ピン部（Ｐ
）の収容室（Ｑ）及び排油穴（Ｌ）から前記モータ（Ｍ
）の上部空間（Ｕ）を経て底部油溜に戻すようにしてい
る。In order to perform smooth sliding motion at each sliding part, generally, an oil supply passage (R) extending from a bottom oil reservoir is provided inside the drive shaft (D), and an upper part of the oil supply passage (R) is provided inside the drive shaft (D). is opened in the fitting gap (G) between the end face of the pin part (P) and the bottom face of the boss cylinder (T), and the fitting gap (G) is opened in the outer peripheral part of the pin part (P). ) is cut out to communicate with the inside of the casing (C), and a pressure relief and oil outflow groove (S) is formed to form a circulation path for the oil to be pumped up into the oil supply passage (R). The pin part (P) and the boss tube (T)
Apply oil to the fitting part etc. between the pin part (P
) from the accommodation chamber (Q) and oil drain hole (L) of the motor (M
) is returned to the bottom oil sump via the upper space (U).
（発明が解決しようとする課題）
しかし、以上の従来構造では、収容室（Ｑ）から排油穴
（Ｌ）を経て上部空間（Ｕ）に排出される油は、ピン部
（Ｐ）とボス筒（Ｔ）との嵌合部や軸受メタル（Ｎ）等
の摺動面を濡らした後に滲み出てくる少量の油だけでな
く、油循環路の確保のために設けた前記油流出溝（Ｓ）
を介して給油通路（Ｒ）の上端から隘れ出てくる多量の
油を含み、このような多量の油が、モータ（Ｍ）の上部
空間（Ｕ）に排出されるため、モータ（Ｍ）の回転に伴
う撹拌作用により多量の油ミストが発生して、作動流体
に多量の油が混入し、作動室（Ｅ）を経て吐出管（Ｙ）
から外部に流出する油量が過剰に増え、底部油溜の油が
減少して給油不良を招くという所謂油上がりの問題が起
こる。又、前記収容室（Ｑ）内では、ピン部（Ｐ）が多
量の流出油を押し退けて回動する必要が生じるため、動
力損失を招く問題も起こる。(Problem to be Solved by the Invention) However, in the above conventional structure, the oil discharged from the storage chamber (Q) through the oil drain hole (L) to the upper space (U) is caused by the pin part (P) and the boss. Not only the small amount of oil that oozes out after wetting the fitting part with the tube (T) or the sliding surface of the bearing metal (N), but also the oil spill groove ( S)
The motor (M) A large amount of oil mist is generated due to the stirring action accompanying the rotation of the , and a large amount of oil mixes into the working fluid, which flows through the working chamber (E) and into the discharge pipe (Y).
The amount of oil leaking out from the tank increases excessively, and the oil in the bottom oil sump decreases, resulting in a so-called oil leakage problem. Furthermore, within the storage chamber (Q), the pin portion (P) needs to rotate while displacing a large amount of spilled oil, which also causes a problem of power loss.
以上の問題は、インバータ等により前記駆動軸（Ｄ）の
回転数が高速になり、給油通路（Ｒ）に汲上げる油量が
増大するほど顕著に現れる。The above problems become more noticeable as the rotational speed of the drive shaft (D) increases due to an inverter or the like, and as the amount of oil pumped into the oil supply passage (R) increases.
本発明の目的は、給油系統における排油経路の構成を工
夫することにより、油上がりや動力損失を招くことなく
良好な給油及び排油が行えるスクロール形流体機械を提
供することにある。An object of the present invention is to provide a scroll-type fluid machine that can perform good oil supply and oil drainage without causing oil drainage or power loss by devising the configuration of the oil drainage path in the oil supply system.
（課題を解決するための手段）
そこで、本発明では、上記目的を達成するため、ケーシ
ング（３）の内部上方に第１及び第２スクロール（１）
（２）を、下方にモータ（４）を各々配設し、駆動軸（
５）の上部軸端に設けるピン部（６）を前記第２スクロ
ール（２）のボス筒（７）に嵌合すると共に、前記駆動
軸（５）の内部に底部油溜（８）から延びる給油通路（
９）を設けたスクロール形流体機械において、前記ピン
部（６）とボス筒（７）との間の嵌合部に、油プール（
１０）を設けて、該油プール（１０）に前記給油通路（
９）を連通させると共に、前記駆動軸（５）の内部に排
油通路（１１）を設けて、該排油通路（１１）に前記油
プール（１０）の油流出側を連通させる一方、前記排油
通路（１１）の出口部を前記モータ（４）の下部空間（
１２）に開口した。(Means for Solving the Problems) Therefore, in the present invention, in order to achieve the above object, first and second scrolls (1) are provided inside and above the casing (3).
(2), a motor (4) is arranged below each, and a drive shaft (
5) is fitted into the boss cylinder (7) of the second scroll (2) and extends from the bottom oil reservoir (8) into the inside of the drive shaft (5). Refueling passage (
9), an oil pool (
10), and the oil supply passage (10) is provided in the oil pool (10).
9), and an oil drain passage (11) is provided inside the drive shaft (5), and the oil outflow side of the oil pool (10) is communicated with the oil drain passage (11). The outlet part of the oil drain passage (11) is connected to the lower space of the motor (4) (
12).
又、第２に上記構成で、前記給油通路（９）を、ピン部
（６）の外周側に向けて開口する油開放口（１３）を介
して油プール（１０）に連通させると共に、この油プー
ル（１０）の油流出側を前記ピン部（６）の端面とボス
筒（７）の底面との間に形成される嵌合隙間（１４）に
開放し、かつ、排油通路（１１）を前記嵌合隙間（１４
）に開口した。Secondly, with the above configuration, the oil supply passageway (9) is communicated with the oil pool (10) via the oil release port (13) that opens toward the outer circumferential side of the pin portion (6), and this The oil outflow side of the oil pool (10) is opened to the fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss cylinder (7), and the oil drain passage (11 ) to the fitting gap (14
) opened.
（作用）
給油通路（９）の油は、ピン部（６）とボス筒（７）と
の間に設けた油プール（１０）に流入し、この油プール
（１０）から排油通路（１１）を経てモータ（４）の下
部空間（１２）に排出される。これにより、油の循環経
路を確保できて、良好な給油及び排油が行えると共に、
前記給油通路（９）から多量に溢れ出る油は、モータ（
４）の上部空間では無く前記下部空間（１２）に排出さ
れるため、モータ（４）の回転部分による攪拌の悪影響
を低減でき、作動流体に過剰に油が混入する事態を防止
できて、油上がりを回避でき、しかも、ピン部（６）が
多量の油を押し退けて回動する事態も回避でき、動力損
失も低減できる。(Function) The oil in the oil supply passage (9) flows into the oil pool (10) provided between the pin part (6) and the boss cylinder (7), and from this oil pool (10) it flows into the oil drain passage (11). ) and is discharged into the space (12) below the motor (4). This makes it possible to secure an oil circulation path and ensure good oil supply and drainage, as well as
A large amount of oil overflowing from the oil supply passageway (9) is caused by the motor (
Since the oil is discharged into the lower space (12) instead of the upper space of the motor (4), it is possible to reduce the adverse effects of agitation caused by the rotating part of the motor (4), and prevent excessive oil from being mixed into the working fluid. It is possible to avoid the situation where the pin part (6) displaces a large amount of oil and rotates, and power loss can also be reduced.
第２の構成によれば、油プール（１ｏ）から流出する油
は、ピン部（６）の端面に開口する嵌合隙間（１４）を
介して排油通路（１１）に流れ込むため、遠心力に起因
した排油に与える抵抗の影響を低減でき、排油通路（１
１）への油の流入をスムーズに行える。According to the second configuration, the oil flowing out from the oil pool (1o) flows into the oil drain passage (11) through the fitting gap (14) opened at the end surface of the pin part (6), so that the centrifugal force It is possible to reduce the influence of resistance on drain oil caused by oil drain passage (1
1) Allows oil to flow smoothly.
（実施例）
第１図に示すものは、冷凍装置の圧縮機として用いたス
クロール形流体機械であり、密閉形のケーシング（３）
の内部上方に、上部ハウジング（３０）を介して、鏡板
（Ａ）に渦巻体（ａ）を突設した固定側の第１スクロー
ル（１）と、鏡板（Ｂ）に渦巻体（ｂ）を突設した可動
側の第２スクロール（２）とを配設すると共に、下方に
、ステータ（４１）とロータ（４２）とをもっモータ（
４）を配設し、駆動軸（５）の上部軸端に設ける偏心杖
のピン部（６）を第２スクロール（２）のボス筒（７）
に嵌合して、駆動軸（５）の回転により、吸入管（３１
）からモータ（４）の上部空間（３２）に取り込む吸入
ガスを各渦巻体間に画成する作動室（３３）内で圧縮し
、圧縮後の吐出ガスを、渦巻中心部の吐出穴（３４）か
ら隔壁（３５）で画成する吐出室（３６）に開放し、油
分離器（３７）を通過させた後に吐出管（３８）から外
部に取出すようにしている。吐出ガスから分離した油は
油戻し管（３９）を通じて底部油溜（８）に戻すように
している。(Example) The one shown in Fig. 1 is a scroll-type fluid machine used as a compressor for a refrigeration system, and has a closed casing (3).
A fixed-side first scroll (1) with a spiral body (a) protruding from an end plate (A) and a spiral body (b) on an end plate (B) are disposed above the interior of the frame through an upper housing (30). A movable second scroll (2) protruding from the movable side is provided, and a motor (41) and a rotor (42) are provided below.
4), and the pin part (6) of the eccentric rod provided at the upper shaft end of the drive shaft (5) is connected to the boss cylinder (7) of the second scroll (2).
is fitted into the suction pipe (31), and the suction pipe (31
) into the upper space (32) of the motor (4) is compressed in the working chamber (33) defined between each spiral body, and the compressed discharge gas is passed through the discharge hole (34) in the center of the spiral. ) is opened to a discharge chamber (36) defined by a partition wall (35), and after passing through an oil separator (37), is taken out from a discharge pipe (38). The oil separated from the discharged gas is returned to the bottom oil sump (8) through an oil return pipe (39).
前記駆動軸（５）の内部には、軸穴（９１）とこれに連
続する偏心穴（９２）とから成り、容積型の油ポンプ（
８０）を介して前記油溜（８）に連通ずる給油通路（９
）を貫通形成しており、横穴（９３）を介して上部軸受
メタル（５０）に給油すると共に連通路（９４）を介し
て第２スクロール（２）のスラスト支持面（２０）側に
給油するようにしている。又、該駆動軸（５）の下部は
、下部ハウジング（８１）に設ける下部軸受メタル（８
２）及びスラストプレート（８３）に支持しており、上
部軸受メタル（５ｏ）に当接する径大な軸受部（５１）
の下部には、バランスウェイト（５２）を一体形成して
いる。The inside of the drive shaft (5) consists of a shaft hole (91) and an eccentric hole (92) continuous thereto, and a positive displacement oil pump (
An oil supply passage (9) communicating with the oil sump (8) via an oil tank (80).
) is formed through the upper bearing metal (50) through the horizontal hole (93), and also supplies oil to the thrust support surface (20) side of the second scroll (2) through the communication passage (94). That's what I do. Further, the lower part of the drive shaft (5) is connected to a lower bearing metal (8) provided in the lower housing (81).
2) and a large-diameter bearing portion (51) that is supported by the thrust plate (83) and comes into contact with the upper bearing metal (5o).
A balance weight (52) is integrally formed at the lower part of the body.
以上の構成で、第２図に明示するように、ピン部軸受メ
タル（７０）を介してボス筒（７）に嵌合される前記ピ
ン部（６）の外周面に、前記軸受メタル（７０）の内面
に臨む油プール（１ｏ）を切欠き杖に形成する。該油プ
ール（１ｏ）は、上部を前記ピン部（６）の端面とボス
筒（７）の底面との間に形成される嵌合隙間（１４）に
開口しており、又、下部を前記軸受メタル（７ｏ）の下
部周縁部に対して上方側に位置させて、前記油プール（
１０）をピン部（６）を収容する収容室（６０）ひいて
はケーシング（３）の内部空間に対して閉鎖するように
している。そして、この油プール（１０）に前記嵌合隙
間（１４）を介して給油通路（９）を連通させている。With the above configuration, as clearly shown in FIG. 2, the bearing metal (70 ) An oil pool (1o) facing the inner surface of the notched cane is formed. The oil pool (1o) has an upper part opening into a fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss tube (7), and a lower part opening into the fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss tube (7). The oil pool (7o) is located above the lower peripheral edge of the bearing metal (7o)
10) is closed to the accommodation chamber (60) that accommodates the pin part (6) and, in turn, to the internal space of the casing (3). The oil supply passage (9) is communicated with this oil pool (10) through the fitting gap (14).
又、前記駆動軸（５）の内部に、中心軸上に延びる排油
通路（１１）を設けて、この排油通路（１１）の上端部
に埋栓（１５）を嵌合して上部を閉鎖すると共に、該排
油通路（１１）に、前記油プール（１０）の下部に位置
する油流出側に油導入口（１６）を開口させる排油連通
路（１７）を接続して、前記排油通路（１１）に前記油
プール（１０）を連通させる。Further, an oil drain passage (11) extending on the central axis is provided inside the drive shaft (5), and a plug (15) is fitted to the upper end of the oil drain passage (11) to open the upper part. At the same time, an oil drain communication passage (17) is connected to the oil drain passage (11), which opens an oil inlet (16) on the oil outflow side located at the lower part of the oil pool (10). The oil pool (10) is communicated with the oil drain passage (11).
更に、前記排油通路（１１）の下部の出口部を、第１図
に示すように、径方向に開口する油排出穴（１８）を介
して、前記モータ（４）の下部空間（１２）に開口させ
る。Furthermore, as shown in FIG. 1, the lower outlet portion of the oil drain passage (11) is connected to the lower space (12) of the motor (4) through an oil drain hole (18) that opens in the radial direction. to open.
以上の構成により、前記給油通路（９）に汲上げられた
油は、第２図中矢印で示すように上端部の嵌合隙間（１
４）を介して油プール（１０）に流入し、この油プール
（１０）から排油連通路（１７）を通過して排油通路（
１１）に流出し、更に第１図に示すように、その出口部
の油排出穴（１８）からモータ（４）の下部空間（１２
）に排出される。これ゛により、油の循環経路が構成で
き、上部軸受メタル（５０）やピン部（６）とボス筒（
７）との間の嵌合部に給油できると共に、前記給油通路
（９）の上端から多量に隘れ出てくる油を、前記モータ
（４）の上部空間（３２）では無く、下部空間（１２）
に排出するため、モータ（４）のロータ（４２）や、バ
ランスウェイト（５２）の回転による攪拌の悪影響を低
減でき、吸入ガスに過剰に油が混入するのを防止でき、
油が油戻し管（３９）による油戻し能力を越えて吐出室
（３６）に多量に流出するのを防止できて、油上がりを
回避することができ、しかも、収容室（６０）内でピン
部（６）が多量の油を押し退けて回動する事態も回避で
きて、動力損失も低減でき、良好な給油及び排油が行え
るのである。With the above configuration, the oil pumped into the oil supply passage (9) is transferred to the fitting gap (1) at the upper end as shown by the arrow in FIG.
4) into the oil pool (10), and from this oil pool (10) passes through the oil drain communication passage (17) and flows into the oil drain passage (
11), and as shown in Fig. 1, the oil drains into the lower space (12) of the motor (4) from the oil discharge hole (18) at its outlet.
) is discharged. With this, an oil circulation path can be configured, and the upper bearing metal (50), pin part (6) and boss tube (
7), and a large amount of oil leaking out from the upper end of the oil supply passageway (9) can be removed from the lower space (32) of the motor (4) instead of the upper space (32). 12)
Since the oil is discharged to
It is possible to prevent a large amount of oil from flowing into the discharge chamber (36) beyond the oil return capacity of the oil return pipe (39), and to avoid oil leakage. It is also possible to avoid a situation where the part (6) displaces a large amount of oil and rotates, reducing power loss and allowing for good oil supply and oil drainage.
ところで、以上の実施例は、給油通路（９）を上部に貫
通させ、該給油通路（９）を嵌合隙間（１４）を介して
油プール（１０）に連通させると共に、この油プール（
１０）の油流出側を横方向に延びる排油連通路（１７）
を介して排油通路（１１）に連通させたが、第３図に示
すように、給油通路（９）の上部に埋栓（９５）を嵌合
して上部を閉鎖し、該給油通路（９）をピン部（６）の
外周側に向けて開口する油開放口（１３）をもつ給油連
通路（１９）を介して油プール（１０）に連通させると
共に、この油プール（１０）の上部側の油流出側を嵌合
隙間（１４）に開放し、かつ、排油通路（１１）の上部
に埋栓をすること無くその上部を前記嵌合隙間（１４）
に開口し、第３図中矢印で示すように、油を循環させる
ようにしてもよい。By the way, in the above embodiment, the oil supply passage (9) is passed through the upper part, the oil supply passage (9) is communicated with the oil pool (10) via the fitting gap (14), and this oil pool (
10) Oil drain passage (17) extending laterally on the oil outflow side
As shown in FIG. 3, a plug (95) is fitted to the upper part of the oil supply passage (9) to close the upper part, and the oil supply passage (9) is connected to the oil drain passage (11) through the 9) is communicated with the oil pool (10) via an oil supply passageway (19) having an oil release port (13) that opens toward the outer circumferential side of the pin portion (6), and the oil pool (10) is The upper oil outflow side is opened to the fitting gap (14), and the upper part of the oil drain passage (11) is opened to the fitting gap (14) without plugging the upper part of the oil drain passage (11).
It may be opened to allow oil to circulate as shown by the arrow in FIG.
この第３図のものでは、第２図のものに比べて、油プー
ル（１０）からピン部（６）の上端面に大きく開口する
嵌合隙間（１４）を介して排油通路（１工）に油が流れ
込むため、遠心力に起因して排油の際に生じる抵抗の影
響を低減でき、前記排油通路（１１）への油の流入がス
ムーズとなり、−層良好な油の排出が行えるのである。In the one shown in Fig. 3, compared to the one shown in Fig. 2, the oil drain passage (one hole ), it is possible to reduce the influence of resistance that occurs during oil draining due to centrifugal force, and the oil flows smoothly into the oil drain passage (11), resulting in smooth oil draining. It can be done.
（発明の効果）
以上、本発明によれば、ピン部（６）とボス筒（７）と
の間の嵌合部に、油プール（１０）を設けて、該油プー
ル（１０）に給油通路（９）を連通させると共に、駆動
軸（５）の内部に排油通路（１１）を設けて、該排油通
路（１１）に前記油プール（１０）の油流出側を連通さ
せる一方、前記排油通路（１１）の出口部をモータ（４
）の下部空間（１２）に開口したから、作動流体に多量
の油が混入する事態や前記ピン部（６）が多量の油を押
し退けて回動する事態を回避でき、油上がりや動力損失
を招くことなく、良好な給油及び排油が行えるのである
。(Effects of the Invention) As described above, according to the present invention, an oil pool (10) is provided in the fitting part between the pin part (6) and the boss tube (7), and oil is supplied to the oil pool (10). While communicating the passage (9), providing an oil drain passage (11) inside the drive shaft (5) and communicating the oil spill side of the oil pool (10) with the oil drain passage (11), The exit part of the oil drain passage (11) is connected to the motor (4).
), it is possible to avoid a situation where a large amount of oil gets mixed into the working fluid or a situation where the pin part (6) pushes away a large amount of oil and rotates, thereby reducing oil leakage and power loss. Good oil supply and oil drainage can be carried out without causing any problems.
又、給油通路（９）を、ピン部（６）の外周側に向けて
開口する油開放口（１３）を介して油プール（１０）に
連通させると共に、この油プール（１０）の油流出側を
、前記ピン部（６）の端面とボス筒（７）の底面との間
に形成される嵌合隙間（１４）に開放し、かつ、排油通
路（１１）を前記嵌合隙間（１４）に開口したがら、前
記油プール（１０）から排油通路（１１）への油の流入
をスムーズに行え、−層良好な油の排出が行えるのであ
る。Also, the oil supply passage (9) is communicated with the oil pool (10) through the oil release port (13) that opens toward the outer circumferential side of the pin portion (6), and the oil in the oil pool (10) is prevented from flowing out. The side is open to the fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss cylinder (7), and the oil drain passage (11) is opened to the fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss tube (7). 14), the oil can smoothly flow from the oil pool (10) into the oil drain passage (11), and the oil can be drained with good quality.
第１図は本発明にかかるスクロール形流体機械の断面図
、第２図はその要部斜視図、第３図は他の実施例を示す
要部斜視図、第４図は従来例の断面図である。
（１）・・・・第１スクロール
（２）・・・・第２スクロール
（３）・・・・ケーシング
（４）・・・・モータ
（５）・・・・駆動軸
（６）・・・・ピン部
（７）・・・・ボス筒
（８）・・・・底部油溜
（９）・・・・給油通路
（１０）・・・・油プール
（１１）・・・・排油通路
（１２）・・・・下部空間
（１３）・・・・油開放口
（１４）・・・・嵌合隙間
ｒ−当−Ｙ
ＤFIG. 1 is a sectional view of a scroll-type fluid machine according to the present invention, FIG. 2 is a perspective view of the main part thereof, FIG. 3 is a perspective view of the main part showing another embodiment, and FIG. 4 is a sectional view of a conventional example. It is. (1)...First scroll (2)...Second scroll (3)...Casing (4)...Motor (5)...Drive shaft (6)... ...Pin part (7) ...Boss cylinder (8) ...Bottom oil sump (9) ...Oil supply passage (10) ...Oil pool (11) ...Drainage oil Passage (12)...Lower space (13)...Oil release port (14)...Fitting gap r-Abut-Y D
Claims (2)
ロール（１）（２）を、下方にモータ（４）を各々配設
し、駆動軸（５）の上部軸端に設けるピン部（６）を前
記第２スクロール（２）のボス筒（７）に嵌合すると共
に、前記駆動軸（５）の内部に底部油溜（８）から延び
る給油通路（９）を設けたスクロール形流体機械におい
て、前記ピン部（６）とボス筒（７）との間の嵌合部に
、油プール（１０）を設けて、該油プール（１０）に前
記給油通路（９）を連通させると共に、前記駆動軸（５
）の内部に排油通路（１１）を設けて、該排油通路（１
１）に前記油プール（１０）の油流出側を連通させる一
方、前記排油通路（１１）の出口部を前記モータ（４）
の下部空間（１２）に開口したことを特徴とするスクロ
ール形流体機械。(1) The first and second scrolls (1) and (2) are disposed above and below inside the casing (3), and the motor (4) is disposed below, and a pin section is provided at the upper shaft end of the drive shaft (5). (6) is fitted into the boss tube (7) of the second scroll (2), and an oil supply passage (9) extending from the bottom oil reservoir (8) is provided inside the drive shaft (5). In the fluid machine, an oil pool (10) is provided at the fitting part between the pin part (6) and the boss tube (7), and the oil supply passage (9) is communicated with the oil pool (10). together with the drive shaft (5
) is provided with an oil drain passage (11) inside the oil drain passage (1
1), the oil outflow side of the oil pool (10) is communicated with the motor (4), and the outlet of the oil drain passage (11) is communicated with the motor (4).
A scroll-type fluid machine characterized by opening into a lower space (12) of the scroll type fluid machine.
向けて開口する油開放口（１３）を介して油プール（１
０）に連通させると共に、この油プール（１０）の油流
出側を、前記ピン部（６）の端面とボス筒（７）の底面
との間に形成される嵌合隙間（１４）に開放し、かつ、
排油通路（１１）を前記嵌合隙間（１４）に開口してい
る請求項１記載のスクロール形流体機械。(2) The oil supply passageway (9) is connected to the oil pool (1
0), and the oil outflow side of this oil pool (10) is opened to the fitting gap (14) formed between the end face of the pin part (6) and the bottom face of the boss tube (7). And,
The scroll-type fluid machine according to claim 1, wherein the oil drain passageway (11) is opened into the fitting gap (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2268196A JP2522459B2 (en) | 1990-10-04 | 1990-10-04 | Scroll type fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2268196A JP2522459B2 (en) | 1990-10-04 | 1990-10-04 | Scroll type fluid machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04143489A true JPH04143489A (en) | 1992-05-18 |
| JP2522459B2 JP2522459B2 (en) | 1996-08-07 |
Family
ID=17455259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2268196A Expired - Fee Related JP2522459B2 (en) | 1990-10-04 | 1990-10-04 | Scroll type fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522459B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287099B1 (en) * | 1999-01-19 | 2001-09-11 | Lg Electronics, Inc. | Scroll compressor |
| US6494696B2 (en) | 1998-12-14 | 2002-12-17 | Hitachi, Ltd. | Scroll compressor |
| WO2005088078A1 (en) * | 2004-03-17 | 2005-09-22 | Daikin Industries, Ltd. | Fluid machine |
| US8075291B2 (en) * | 2006-06-15 | 2011-12-13 | Doowon Technical College | Scroll compressor improved in function of oil circulation and back pressure control |
| CN102628442A (en) * | 2011-02-07 | 2012-08-08 | 松下电器产业株式会社 | Compressor |
| WO2013118514A1 (en) * | 2012-02-09 | 2013-08-15 | ダイキン工業株式会社 | Compressor |
| JP2016114060A (en) * | 2014-12-12 | 2016-06-23 | ダイキン工業株式会社 | Compressor |
| WO2021005895A1 (en) * | 2019-07-10 | 2021-01-14 | ダイキン工業株式会社 | Scroll compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63201387A (en) * | 1987-02-17 | 1988-08-19 | Matsushita Electric Ind Co Ltd | Compressor |
| JPH01219384A (en) * | 1988-02-26 | 1989-09-01 | Matsushita Refrig Co Ltd | Compressor |
-
1990
- 1990-10-04 JP JP2268196A patent/JP2522459B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63201387A (en) * | 1987-02-17 | 1988-08-19 | Matsushita Electric Ind Co Ltd | Compressor |
| JPH01219384A (en) * | 1988-02-26 | 1989-09-01 | Matsushita Refrig Co Ltd | Compressor |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6494696B2 (en) | 1998-12-14 | 2002-12-17 | Hitachi, Ltd. | Scroll compressor |
| US6287099B1 (en) * | 1999-01-19 | 2001-09-11 | Lg Electronics, Inc. | Scroll compressor |
| WO2005088078A1 (en) * | 2004-03-17 | 2005-09-22 | Daikin Industries, Ltd. | Fluid machine |
| US7628592B2 (en) | 2004-03-17 | 2009-12-08 | Daikin Industries, Ltd. | Fluid machine having reduced heat input to fluid |
| US8075291B2 (en) * | 2006-06-15 | 2011-12-13 | Doowon Technical College | Scroll compressor improved in function of oil circulation and back pressure control |
| CN102628442A (en) * | 2011-02-07 | 2012-08-08 | 松下电器产业株式会社 | Compressor |
| WO2013118514A1 (en) * | 2012-02-09 | 2013-08-15 | ダイキン工業株式会社 | Compressor |
| JP2013177877A (en) * | 2012-02-09 | 2013-09-09 | Daikin Industries Ltd | Compressor |
| CN104105878A (en) * | 2012-02-09 | 2014-10-15 | 大金工业株式会社 | Compressor |
| JP2016114060A (en) * | 2014-12-12 | 2016-06-23 | ダイキン工業株式会社 | Compressor |
| WO2021005895A1 (en) * | 2019-07-10 | 2021-01-14 | ダイキン工業株式会社 | Scroll compressor |
| JP2021014801A (en) * | 2019-07-10 | 2021-02-12 | ダイキン工業株式会社 | Scroll compressor |
| CN113950581A (en) * | 2019-07-10 | 2022-01-18 | 大金工业株式会社 | Scroll compressor having a discharge port |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522459B2 (en) | 1996-08-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |