JPH0612114B2 - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JPH0612114B2 JPH0612114B2 JP59277598A JP27759884A JPH0612114B2 JP H0612114 B2 JPH0612114 B2 JP H0612114B2 JP 59277598 A JP59277598 A JP 59277598A JP 27759884 A JP27759884 A JP 27759884A JP H0612114 B2 JPH0612114 B2 JP H0612114B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- low pressure
- cylinder
- motor
- closed container
- 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.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はロータリー圧縮機に関し、特にその給油機構に
係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary compressor, and more particularly to an oil supply mechanism thereof.
従来例の構成とその問題点 一般にロータリー圧縮機においては、その取付性の面か
ら横置き型が有利であるが、各摺動部が油面から離れて
いるため、給油ポンプには工夫が要である。以下、従来
例の構成とその問題点を第５図、第６図に従い説明す
る。第５図，第６図の中で密閉容器ａ内には固定子ｂ及
び回転子ｃを有するモータと、このモータによって駆動
される圧縮装置が収納されている。圧縮装置はシャフト
ｄの偏心部ｅに嵌装されたローラｆが、シャフトｄが回
転することによってシリンダｇ内で回動し、ローラｆに
圧接されるベーンｈによってシリンダ内に区切られるこ
とにより、吸入管ｉより吸入されたガスは連続して圧縮
されるものである。圧縮されたガスは密閉容器ａ内に開
放された後、吐出管ｊより吐出される。前記ベーンｈの
低圧室側側面ｋには、密閉容器内に溜った油ｍの液面下
及びシリンダｇ内の低圧室内にそれぞれ両開口部を持つ
油溝ｌが設けてある。従って吸入室と密閉容器内との圧
力差によって油は吸入行程中に低圧室内に導かれ、摺動
部の潤滑を果す。かかる構成において、低圧室に供給さ
れる給油量は溝の通過断面積を変えるか、低圧室と油中
との連通時間を短かくすることによって変るが、極めて
大きな圧力差によって給油されるため、給油過剰となっ
てしまう。その結果、圧縮機は多量の油を圧縮すること
となり、大巾な消費電力の増加をきたすとともに、吐出
ガスからは多量の油が送り出されるため、密閉容器内の
油量不足が生じる等の欠点を有していた。Conventional structure and its problems Generally, in a rotary compressor, the horizontal type is advantageous from the viewpoint of its mountability, but since each sliding part is separated from the oil surface, it is necessary to devise an oil pump. Is. The structure of the conventional example and its problems will be described below with reference to FIGS. In FIG. 5 and FIG. 6, a motor having a stator b and a rotor c, and a compressor driven by this motor are housed in a closed container a. In the compression device, the roller f fitted to the eccentric portion e of the shaft d rotates in the cylinder g due to the rotation of the shaft d, and is partitioned in the cylinder by the vane h pressed against the roller f. The gas sucked through the suction pipe i is continuously compressed. The compressed gas is discharged into the closed container a and then discharged from the discharge pipe j. An oil groove 1 having both openings is provided on the side surface k of the vane h on the low pressure chamber side, below the liquid level of the oil m accumulated in the closed container and in the low pressure chamber in the cylinder g. Therefore, due to the pressure difference between the suction chamber and the closed container, the oil is guided into the low pressure chamber during the suction stroke and lubricates the sliding portion. In such a configuration, the amount of oil supplied to the low pressure chamber is changed by changing the passage cross-sectional area of the groove or by shortening the communication time between the low pressure chamber and the oil, but since the oil is supplied by an extremely large pressure difference, Excessive refueling. As a result, the compressor compresses a large amount of oil, resulting in a large increase in power consumption, and a large amount of oil is sent out from the discharge gas, which causes a shortage of oil in the closed container. Had.
発明の目的 そこで本発明は密閉容器内と低圧室の差圧によって低圧
室に供給される油の、供給量をコントロールする機構の
実現を目的とする。Therefore, an object of the present invention is to realize a mechanism for controlling the supply amount of oil supplied to the low pressure chamber by the pressure difference between the inside of the closed container and the low pressure chamber.
発明の構成 この目的を達成するために本発明はベーンに、上死点近
傍でシリンダの低圧室内と連通し、下死点近傍で密閉容
器内にたまった油の液面下に連通し、どの行程において
もシリンダの低圧室内と密閉容器内にたまった油の液面
下の両方に同時に連通しない油だめを設けることによ
り、密閉容器内にたまった油の液面下の圧力と油だめ内
の圧力の圧力差で密閉容器内にたまった液状の油を油だ
めに取り入れ、油だめ内の圧力とシリンダの低圧室内の
圧力の圧力差で油だめ内の油をシリンダの低圧室へ供給
するようにしたものであり、密閉容器内にたまった油の
液面下とシリンダの低圧室内とが連通しないように油だ
めを構成して給油過剰とならないようにしたものであ
る。To achieve this object, the present invention relates to a vane, which communicates with the low pressure chamber of the cylinder near the top dead center and communicates with the bottom of the oil in the closed container near the bottom dead center. Even in the stroke, by providing an oil sump that does not communicate with both the low pressure chamber of the cylinder and the liquid level of the oil accumulated in the closed container at the same time, the pressure below the liquid level of the oil accumulated in the closed container and the Due to the pressure difference of the pressure, the liquid oil accumulated in the closed container is taken into the oil sump, and the oil in the oil sump is supplied to the low pressure chamber of the cylinder by the pressure difference between the pressure in the oil sump and the pressure in the low pressure chamber of the cylinder. The oil sump is configured so that the subsurface of the oil accumulated in the closed container and the low pressure chamber of the cylinder do not communicate with each other to prevent an excessive refueling.
実施例の説明 以下、本発明の一実施例を添付図面に従って説明する。
第１図、第２図において、１−１，１−２，１−３は密
閉容器で、固定子２及び回転子３からなるモータ及び、
このモータによって駆動される圧縮装置が収納されてい
る。４は油で密閉容器１−１，１−２，１−３内にたま
っている。５はシリンダ、６，７はそれぞれモータ側プ
レート、反モータ側プレートでシリンダ５の両側に密着
され、圧縮室８を形成する。９はシャフトで偏心部１０
を有する。１３はローラで圧縮室８に内接している。１
４はベーンでローラ１３に圧接されることにより、圧縮
室８を高，低圧側に仕切る。このベーン１４には低圧室
側側面２０に、上死点近傍で低圧室内部２２と、下死点
近傍で密閉容器内の油４の液面下とに連通する油だめ２
１が設けてある。なお油だめ２１はどの行程においても
シリンダ５の低圧室内部２２と密閉容器内の油４の液面
下の両方に同時に連通しないように構成している。１５
は吸入管で一端が反モータ側プレート７に嵌挿され、他
端は密閉容器１−２の外に開放されている。１６は吐出
管で密閉容器１−２に溶着されている。１７は反モータ
側プレート７に設けられた吐出弁、１８は吐出マフラー
室１９を形成するカバーである。Description of Embodiments An embodiment of the present invention will be described below with reference to the accompanying drawings.
In FIG. 1 and FIG. 2, 1-1, 1-2, 1-3 are hermetically sealed containers, which are motors including a stator 2 and a rotor 3, and
A compressor driven by this motor is housed. Reference numeral 4 denotes oil, which is accumulated in the closed containers 1-1, 1-2 and 1-3. Reference numeral 5 is a cylinder, 6 and 7 are motor side plates and counter motor side plates, respectively, which are in close contact with both sides of the cylinder 5 and form a compression chamber 8. 9 is a shaft and an eccentric portion 10
Have. A roller 13 is inscribed in the compression chamber 8. 1
A vane 4 is pressed against the roller 13 to partition the compression chamber 8 into a high pressure side and a low pressure side. The vane 14 has a side surface 20 on the low pressure chamber side, an oil sump 2 that communicates with the low pressure chamber interior 22 near the top dead center and below the liquid level of the oil 4 in the closed container near the bottom dead center.
1 is provided. It should be noted that the oil sump 21 is configured so as not to communicate with both the low pressure chamber interior 22 of the cylinder 5 and the liquid level of the oil 4 in the closed container at the same time in any stroke. 15
Is a suction pipe, one end of which is fitted and inserted into the non-motor side plate 7, and the other end is opened to the outside of the closed container 1-2. A discharge pipe 16 is welded to the closed container 1-2. Reference numeral 17 is a discharge valve provided on the non-motor side plate 7, and 18 is a cover forming a discharge muffler chamber 19.
上記構成においてロータ３の回転はシャフト９に伝わ
り、偏心部１０に嵌装されたローラ１３が圧縮室８の中
で偏心回動し、ローラ１３に圧接されるベーン１４によ
っ圧縮室８内が高圧側、低圧側に仕切られることによ
り、吸入管１５より吸入されたガスは連続して圧縮され
る。圧縮されたガスは吐出弁１７より吐出され、吐出マ
フラー室１９内に開放された後、密閉容書１−１，１−
２，１−３内に開放され、吐出管１６より吐出される。In the above configuration, the rotation of the rotor 3 is transmitted to the shaft 9, the roller 13 fitted in the eccentric portion 10 is eccentrically rotated in the compression chamber 8, and the inside of the compression chamber 8 is moved by the vane 14 pressed against the roller 13. By being partitioned into a high pressure side and a low pressure side, the gas sucked through the suction pipe 15 is continuously compressed. The compressed gas is discharged from the discharge valve 17 and is opened into the discharge muffler chamber 19, and then the sealed packing document 1-1, 1-
2 and 1-3 are opened and discharged from the discharge pipe 16.
第３図は本考案の圧縮機のシリンダ５内を反モータ側か
ら見たもので、２２は低圧室である。圧縮機の運転中
は、密閉容器１−１，１−２，１−３内は高圧となるた
め、油４中には大量の高圧のガスが溶け込んでいる。第
３図の(a)において、ベーン１４が上死点近傍で油だめ
２１が低圧室２２と連通すると、油だめ２１の中の油の
中に溶け込んだガスが膨張し、みかけ上の油の体積が増
加するため、この増加分の油４′が低圧室２２内に供給
される。次に第３図，第４図の(b)において、ベーン１
４が下死点にきて油だめ２１が油４中と連通すると、圧
力によって油だめ内の油はみかけ上の体積が減少し、油
４中からの油が矢印の如く油だめ２１内に入り込む。こ
のくり返しによって密閉容器１−１，１−２，１−３内
に溜った油は連続して低圧室２２内に供給されるのであ
る。FIG. 3 is a view of the inside of the cylinder 5 of the compressor of the present invention viewed from the side opposite to the motor side, and 22 is a low pressure chamber. During the operation of the compressor, the pressure in the closed containers 1-1, 1-2, 1-3 is high, so that a large amount of high-pressure gas is dissolved in the oil 4. In FIG. 3 (a), when the vane 14 communicates with the low pressure chamber 22 near the top dead center, the gas dissolved in the oil in the oil sump 21 expands, and the apparent oil Since the volume increases, the increased oil 4 ′ is supplied into the low pressure chamber 22. Next, in FIG. 3 and FIG. 4 (b), the vane 1
When 4 reaches the bottom dead center and the oil sump 21 communicates with the oil 4 inside, the apparent volume of the oil in the oil sump decreases due to the pressure, and the oil from the oil 4 enters the oil sump 21 as shown by the arrow. Get in. The oil accumulated in the closed containers 1-1, 1-2, and 1-3 by this repetition is continuously supplied into the low-pressure chamber 22.
この際、供給される油４′の量は油だめ２１が低圧室２
２と通した時生じるみかけ上の油の膨張分だけであり、
その供給量は油だめ２１の容積によって細かく調節する
ことができ、最適量の選択が可能である。At this time, the amount of oil 4'supplied by the oil sump 21 is low.
It is only the apparent oil expansion that occurs when passing through 2.
The supply amount can be finely adjusted by the volume of the oil sump 21, and the optimum amount can be selected.
発明の効果 以上の説明からも明らかなように、本発明はベーンに、
上死点近傍でシリンダの低圧室内と連通し、下死点近傍
で密閉容器内にたまった油の液面下に連通し、どの行程
においてもシリンダの低圧室内と密閉容器内にたまった
油の液面下の両方に同時に連通しない油だめを設けるこ
とにより、シリンダの低圧室内への給油過剰を防止で
き、油だめの容積を変えることによって簡単に細かく給
油量のコントロールが可能となり、その実用的効果は極
めて大きい。EFFECTS OF THE INVENTION As is clear from the above description, the present invention is a vane,
It communicates with the low pressure chamber of the cylinder near the top dead center, and communicates with the liquid level of the oil accumulated in the closed container near the bottom dead center, and the oil accumulated in the low pressure chamber of the cylinder and the closed container at any stroke. By providing an oil sump that does not communicate with both below the liquid level at the same time, it is possible to prevent excessive oil supply into the low pressure chamber of the cylinder, and it is possible to easily and finely control the oil supply amount by changing the oil sump volume. The effect is extremely large.
第１図は本発明のロータリー圧縮機の一実施例の縦断面
図、第２図は上記圧縮機におけるベーンの斜視図、第３
図(a)は同圧縮機のシリンダを反モータ側から見た側面
図、第３図(b)は他の動作状態における同様側面図、第
４図(a)，(b)は第３図(a)，(b)の要部拡大図、第５図は
従来のロータリー圧縮機の一実施例の主要部縦断面図、
第６図はそのベーンの斜視図である。 ４……油、５……シリンダ、６……モータ側プレート、
７……反モータ側プレート、８……圧縮室、１３……ロ
ーラ、１４……ベーン、２１……油だめ。FIG. 1 is a vertical sectional view of an embodiment of a rotary compressor of the present invention, FIG. 2 is a perspective view of a vane in the compressor, and FIG.
Figure (a) is a side view of the cylinder of the compressor as seen from the side opposite to the motor, Figure 3 (b) is the same side view in other operating conditions, and Figures 4 (a) and (b) are Figure 3 (a), (b) main part enlarged view, FIG. 5 is a longitudinal sectional view of a main part of an embodiment of a conventional rotary compressor,
FIG. 6 is a perspective view of the vane. 4 ... Oil, 5 ... Cylinder, 6 ... Motor side plate,
7: anti-motor side plate, 8: compression chamber, 13: roller, 14: vane, 21: oil sump.
Claims (1)
モータと、このモータにより回転するシャフトと、圧縮
室を形成するシリンダと、このシリンダの両面に密着さ
れるモータ側プレート及び反モータ側プレートと、前記
圧縮室に内接し、偏心回転するローラピストンと、先端
部がローラピストンに圧接して前記圧縮室を高低圧側に
仕切るベーンと、前記ベーンに、上死点近傍でシリンダ
の低圧室内と連通し、下死点近傍で密閉容器内にたまっ
た油の液面下に連通し、どの圧縮行程においてもシリン
ダの低圧室内と密閉容器内にたまった油の液面下の両方
に同時に連通しない油だめとを備えたことを特徴とする
ロータリー圧縮機。1. A motor having a stator and a rotor in an airtight container, a shaft rotating by the motor, a cylinder forming a compression chamber, a motor side plate and a counter motor which are in close contact with both surfaces of the cylinder. A side plate, a roller piston that is inscribed in the compression chamber and rotates eccentrically, a vane that presses the tip of the roller piston to partition the compression chamber into high and low pressure sides, and a low pressure of the cylinder near the top dead center in the vane. It communicates with the room and communicates with the liquid level of the oil that has accumulated in the closed container near the bottom dead center, and at the same time in both the low pressure chamber of the cylinder and the liquid level of the oil that has accumulated in the closed container at any compression stroke. A rotary compressor characterized by having a sump that does not communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59277598A JPH0612114B2 (en) | 1984-12-27 | 1984-12-27 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59277598A JPH0612114B2 (en) | 1984-12-27 | 1984-12-27 | Rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61155681A JPS61155681A (en) | 1986-07-15 |
| JPH0612114B2 true JPH0612114B2 (en) | 1994-02-16 |
Family
ID=17585671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59277598A Expired - Lifetime JPH0612114B2 (en) | 1984-12-27 | 1984-12-27 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612114B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290472B2 (en) * | 1998-06-10 | 2001-09-18 | Tecumseh Products Company | Rotary compressor with vane body immersed in lubricating fluid |
| JP2010025103A (en) | 2008-06-16 | 2010-02-04 | Daikin Ind Ltd | Rotary compressor |
| JP6567352B2 (en) * | 2015-07-28 | 2019-08-28 | 東芝キヤリア株式会社 | Rotary compressor and refrigeration cycle apparatus |
| CN106481562B (en) * | 2015-08-27 | 2018-07-27 | 上海海立电器有限公司 | A kind of blade and the rotor-type compressor with the blade |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5346612U (en) * | 1976-09-27 | 1978-04-20 |
-
1984
- 1984-12-27 JP JP59277598A patent/JPH0612114B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61155681A (en) | 1986-07-15 |
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