JPS59110883A - Scroll fluid machine - Google Patents
Scroll fluid machineInfo
- Publication number
- JPS59110883A JPS59110883A JP22006482A JP22006482A JPS59110883A JP S59110883 A JPS59110883 A JP S59110883A JP 22006482 A JP22006482 A JP 22006482A JP 22006482 A JP22006482 A JP 22006482A JP S59110883 A JPS59110883 A JP S59110883A
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- oil
- fixed scroll
- rotary
- back pressure
- 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
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
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は背圧室の圧力を低圧より高くして旋回スクロー
ルを固定スクロールに押し付は密着させる構造にしたス
クロール流体機械に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a scroll fluid machine having a structure in which the pressure in a back pressure chamber is made higher than a low pressure so that an orbiting scroll is pressed against a fixed scroll in close contact with the same.
従来のスクロール流体機械の一例をスクロール圧縮機で
第１図によシ説明する。An example of a conventional scroll fluid machine will be explained using a scroll compressor with reference to FIG.
旋回スクロール１と固定スクロール２を対向して組み合
わせ、固定スクロール２とクレーム３で旋回スクロール
１をはさんで保持する。An orbiting scroll 1 and a fixed scroll 2 are combined facing each other, and the orbiting scroll 1 is held between the fixed scroll 2 and a claim 3.
吸入冷媒は吸入管４より吸入され固定スクロール２、旋
回スクロール１の外周よシ圧縮機に流入する。旋回スク
ロール１はオルダムキー５、オルダムリング６によって
自転を防止し、偏心したクランク軸７によシ旋回軸受８
を介してさい差運動し密閉空間９を順次中心方向へ移送
圧縮して、冷媒ガスを吐出口１０より吐出室）１へ吐出
する。The suction refrigerant is sucked through the suction pipe 4 and flows around the outer peripheries of the fixed scroll 2 and the orbiting scroll 1 into the compressor. The orbiting scroll 1 is prevented from rotating by an Oldham key 5 and an Oldham ring 6, and is rotated by an eccentric crankshaft 7 with an orbiting bearing 8.
The refrigerant gas is moved sequentially toward the center of the closed space 9 and is compressed, thereby discharging the refrigerant gas from the discharge port 10 into the discharge chamber 1.
クランク軸７はフレーム３に設けられた上皇軸受１２と
下止軸受１３で支持されモータ１４，１５の駆動力によ
り回転する。一方旋回スクロール１には密閉空間９と背
圧室１６を連通する導通孔１７が設けられて背圧室１６
内の圧力は吸入圧力と吐出圧力の中間圧力となっている
。The crankshaft 7 is supported by an upper bearing 12 and a bottom stop bearing 13 provided on the frame 3, and is rotated by the driving force of motors 14 and 15. On the other hand, the orbiting scroll 1 is provided with a through hole 17 that communicates the closed space 9 and the back pressure chamber 16.
The internal pressure is an intermediate pressure between suction pressure and discharge pressure.
クランク軸７内には油入１８，１９が設けられており、
１だクランク軸７の各軸受部軸表面には軸方向に溝２０
． ２１． ２２が設けられておシ、クランク軸７下端
は油溜２３内にあり、油入１９と溝２０．２１によって
背圧室１６と油溜２３は導通している。油溜２３部は吐
出圧力になっているので背圧室１６との圧力差によって
油は旋回軸受８と上皇軸受１２に供給された後背圧室１
６に溜まり、前記導通孔１７を介して密閉空間９へ導か
れる。一方クランク軸７上端２４は油入１９を介して油
が供給されており、旋回スクロール１に設けられた油入
２５によって、鏡板２６へ油が供給される。Oil fillers 18 and 19 are provided inside the crankshaft 7,
There is a groove 20 in the axial direction on the shaft surface of each bearing part of the crankshaft 7.
．． 21. 22 is provided, and the lower end of the crankshaft 7 is located within the oil sump 23, and the back pressure chamber 16 and the oil sump 23 are communicated with each other by the oil inlet 19 and the groove 20.21. Since the oil sump 23 is at the discharge pressure, oil is supplied to the swing bearing 8 and the Emperor bearing 12 due to the pressure difference with the back pressure chamber 16, and then the oil is supplied to the back pressure chamber 1.
6 and is guided to the closed space 9 via the conduction hole 17. On the other hand, oil is supplied to the upper end 24 of the crankshaft 7 via an oil well 19 , and oil is supplied to the end plate 26 by an oil well 25 provided in the orbiting scroll 1 .
旋回スクロール１は前記中間圧力によって固定スクロー
ル２に押し付けられているので固定スクロール２の鏡板
２６部には油溝２７が設けられ、前記油入２５と間欠的
につながシ鏡板２６へ給油される。従って油溝２７内の
圧力はほぼ吐出圧力に等しくなっているので、鏡板２６
の密着が悪いと、吸入室２８へ油溝２７内の油が流れる
ため、体積効率が低下する欠点を有した。また鏡板２６
の接触面積が大きいため接触抵抗が大きく駆動力が大き
くなる欠点を有した。また鏡板２６部へ油溝２７を設け
るためと旋回スクロール１の外径を大きくする必要があ
ｐ１固定スクロール２と、フレーム３にｔまさまれた旋
回スクロール１によって溜った油を攪拌して駆動力が大
きくなる欠点を有した。Since the orbiting scroll 1 is pressed against the fixed scroll 2 by the intermediate pressure, an oil groove 27 is provided in the end plate 26 of the fixed scroll 2 and is intermittently connected to the oil reservoir 25 to supply oil to the end plate 26. Therefore, since the pressure inside the oil groove 27 is approximately equal to the discharge pressure, the end plate 26
If the adhesion is poor, the oil in the oil groove 27 will flow into the suction chamber 28, resulting in a decrease in volumetric efficiency. Also, the mirror plate 26
Since the contact area is large, the contact resistance is large and the driving force is large. In addition, in order to provide the oil groove 27 in the end plate 26, it is necessary to increase the outer diameter of the orbiting scroll 1.The driving force is generated by stirring the oil accumulated by the fixed scroll 2 and the orbiting scroll 1 which is sandwiched between the frame 3. It had the disadvantage of becoming large.
また、鏡板２６ヘクランク軸７内の油入１９と旋回スク
ロール１の油入２５を介して給油すると停止時等旋回ス
クロール１が固定スクロール２よシ離脱した場合、クラ
ンク軸７下部の油が上記油入２５および油溝２６を介し
て吸入室２８へ移動３−
し、油溜２３内に油が無くなシ軸受焼損事故の原因とな
る欠点を有した。In addition, if oil is supplied to the end plate 26 through the oil filler 19 in the crankshaft 7 and the oil filler 25 of the orbiting scroll 1, when the orbiting scroll 1 is separated from the fixed scroll 2, such as when stopped, the oil at the bottom of the crankshaft 7 will be The problem is that the oil moves to the suction chamber 28 through the oil reservoir 25 and the oil groove 26, and there is no oil in the oil reservoir 23, which may cause a bearing burnout accident.
本発明の目的は上記の点に鑑みて、旋回スクロールと固
定スクロールの鏡板シート面を小さくして旋回スクロー
ルによる背圧室の油攪拌損失を小さくすると同時に、鏡
板シート面への給油を背圧室の油で行なうことを目的と
したものである。In view of the above points, an object of the present invention is to reduce the oil agitation loss in the back pressure chamber due to the orbiting scroll by reducing the size of the end plate seat surfaces of the orbiting scroll and the fixed scroll, and at the same time, to reduce the oil supply to the end plate seat surface in the back pressure chamber. It is intended to be used with oil.
本発明は上記の目的を達成するために、旋回スクロール
と固定スクロールから成る吸入室と背圧室とを密封する
鏡板面のシート幅を旋回半径以下にして、さい差運動−
回転中の手分は旋回スクロールの固定スクロールのシー
ト面との摺動面を背圧室へ出して油でぬらしてそれによ
ってシート面を給ン山することである。In order to achieve the above object, the present invention makes the sheet width of the mirror plate surface that seals the suction chamber and the back pressure chamber, which are composed of an orbiting scroll and a fixed scroll, equal to or less than the radius of revolution, thereby reducing the differential movement.
The task during rotation is to expose the sliding surface of the orbiting scroll to the seat surface of the fixed scroll to the back pressure chamber and wet it with oil, thereby feeding the seat surface.
以下、本発明の一実施例を第２図、第３図にもとづいて
説明する。Hereinafter, one embodiment of the present invention will be described based on FIGS. 2 and 3.
第２図、第３図で同一符号の部分は従来技術と４−
同一または均等の部分を示し、その構成、作用の説明は
省略する。第２図は本発明に基つく構造の一例を示す。Portions with the same reference numerals in FIGS. 2 and 3 indicate the same or equivalent portions as in the prior art, and explanations of their configurations and operations will be omitted. FIG. 2 shows an example of a structure based on the present invention.
第３図は本発明に基づく固定スクロールを示す固定スク
ロール２９と旋回スクロール３０はシート面３１で密着
し背圧室１６から最外室３２へ冷媒ガスあるいは油が流
れるのを防ぐ構造になっている。またシート面３１の外
側には凹状の溝３３が設けられている。またシート面３
１０幅３４は旋回半径よシ小さくしである。旋回スクロ
ール３０の鏡板３５の大きさはさい差運動をしだ時固定
スクロール２９のシート面３１を保つ大きさにしである
。旋回スクロール３０の鏡板３５上面のシート面３１の
外は従来技術で述べたように背圧室１６には油が満され
ているため、油でぬれている。FIG. 3 shows a fixed scroll according to the present invention. The fixed scroll 29 and the orbiting scroll 30 are in close contact with each other at the seat surface 31 to prevent refrigerant gas or oil from flowing from the back pressure chamber 16 to the outermost chamber 32. . Further, a concave groove 33 is provided on the outside of the seat surface 31. Also, seat surface 3
The width 34 is smaller than the turning radius. The end plate 35 of the orbiting scroll 30 is sized to maintain the seat surface 31 of the fixed scroll 29 during differential movement. The outside of the seat surface 31 on the upper surface of the end plate 35 of the orbiting scroll 30 is wet with oil because the back pressure chamber 16 is filled with oil as described in the prior art.
このためシート面３１には油でぬれた旋回スクロール３
０の鏡板３５が摺動するため、給油特性が良い。Therefore, the orbiting scroll 3 is wet with oil on the seat surface 31.
Since the end plate 35 of 0 slides, the oil supply characteristics are good.
また、シート面３１の内外差圧は、背圧室１６と最外室
３２との圧力差であるため、圧力差が小さく油が最外室
３２へ漏れる量は少ない。Further, since the differential pressure between the inside and outside of the seat surface 31 is the pressure difference between the back pressure chamber 16 and the outermost chamber 32, the pressure difference is small and the amount of oil leaking into the outermost chamber 32 is small.
また旋回スクロール３０の鏡板３５大きさは先に述べた
ように、シート面３１を保つ大きさで良いので小さくす
ることができる。Further, the size of the mirror plate 35 of the orbiting scroll 30 can be made small since it is sufficient to maintain the seat surface 31 as described above.
また、旋回スクロール３０内に特別な給油穴を設けなく
て済むので構造が簡単になる。Further, since there is no need to provide a special oil supply hole in the orbiting scroll 30, the structure is simplified.
また旋回スクロール３０の鏡板３５部で背圧室１６円に
ある部分は、回シに逃げがあるため、油を攪拌しても攪
拌損失は凹状の溝３３が無いときよシ少ない。Further, in the portion of the end plate 35 of the orbiting scroll 30 located at 16 yen of the back pressure chamber, there is a relief in the rotation, so even if the oil is stirred, the stirring loss is less than when the concave groove 33 is not provided.
本発明は上記の如く構成にしたので、油の攪拌がなくな
シ駆動損失が少なくなシ、鏡板シート面への給油を背圧
室油で行なうことが可能となったSince the present invention is configured as described above, there is no stirring of oil, there is little driving loss, and it is possible to supply oil to the head plate sheet surface using back pressure chamber oil.
第１図は従来のスクロール圧縮機の構造図を示す。第２
図は本発明の一実施例を示すスクロール圧縮機の構造図
を示す。第３図は本発明の一実施例のスクロール圧縮機
の固定スクロールの断面図および平面図を示す。FIG. 1 shows a structural diagram of a conventional scroll compressor. Second
The figure shows a structural diagram of a scroll compressor showing one embodiment of the present invention. FIG. 3 shows a sectional view and a plan view of a fixed scroll of a scroll compressor according to an embodiment of the present invention.
Claims (1)
スクロールおよびフレーム、駆動軸等から構成され、旋
回スクロールとフレーム、駆動軸から成る空間（以下背
圧室という）の圧力を、低圧より高くして旋回スクロー
ルを固定スクロールに押し付け、密着させる構造にした
スクロール流体機械において、旋回スクロールと固定ス
クロールから成る最外室と背圧室を密封するシート面の
幅を旋回半径以下にしたことを特徴とするスクロール流
体機械。 ２、上記シート面の幅を旋回半径以下にするように、固
定スクロールの該シート面の外側を凹状にしたことを特
徴とする特許請求範囲第１項記載のスクロール流体機械
。 ３、上記シート面の最少幅を旋回半径以下にするように
、旋回スクロールの中心から外側までの大きさを、これ
に対応する固定スクロールの中心から、最外室までの距
離と旋回半径の２倍を合計した距離よシ小さくしたこと
を特徴とする特許請求範囲第１項記載のスクロール流体
機械。[Claims] 1. Pressure in a space (hereinafter referred to as back pressure chamber) consisting of a fixed scroll, an orbiting scroll, a frame, a drive shaft, etc., which perform relative orbiting motion, and consisting of the orbiting scroll, frame, and drive shaft. In a scroll fluid machine that has a structure in which the orbiting scroll is pressed against the fixed scroll by making the pressure higher than the low pressure and is in close contact with the fixed scroll, the width of the seat surface that seals the outermost chamber and the back pressure chamber consisting of the orbiting scroll and the fixed scroll is equal to or less than the orbit radius. A scroll fluid machine characterized by: 2. The scroll fluid machine according to claim 1, wherein the outer side of the seat surface of the fixed scroll is concave so that the width of the seat surface is equal to or less than the turning radius. 3. In order to keep the minimum width of the seat surface below the turning radius, the size from the center to the outside of the orbiting scroll is determined by the distance from the corresponding fixed scroll center to the outermost chamber and the turning radius. Scroll fluid machine according to claim 1, characterized in that the distance is smaller than the sum of the times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22006482A JPS59110883A (en) | 1982-12-17 | 1982-12-17 | Scroll fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22006482A JPS59110883A (en) | 1982-12-17 | 1982-12-17 | Scroll fluid machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59110883A true JPS59110883A (en) | 1984-06-26 |
| JPH0134313B2 JPH0134313B2 (en) | 1989-07-18 |
Family
ID=16745367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22006482A Granted JPS59110883A (en) | 1982-12-17 | 1982-12-17 | Scroll fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59110883A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6162295U (en) * | 1984-09-28 | 1986-04-26 | ||
| JPS62142801A (en) * | 1985-12-18 | 1987-06-26 | Mitsubishi Heavy Ind Ltd | Scroll-type fluid machine |
| JPS62168986A (en) * | 1986-01-20 | 1987-07-25 | Matsushita Electric Ind Co Ltd | Scroll gaseous body compressor |
| JPS62261686A (en) * | 1986-05-09 | 1987-11-13 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| JPS63100287A (en) * | 1986-10-17 | 1988-05-02 | Matsushita Refrig Co | Scroll compressor |
| JPS63131879A (en) * | 1986-11-21 | 1988-06-03 | Matsushita Refrig Co | Scroll type compressor |
| JPH0222687U (en) * | 1988-07-29 | 1990-02-15 | ||
| US5000669A (en) * | 1987-09-08 | 1991-03-19 | Sanden Corporation | Hermetic scroll type compressor having two section chambers linked by inclined oil passage |
| US5082432A (en) * | 1989-06-02 | 1992-01-21 | Sanden Corporation | Axial sealing mechanism for a scroll type compressor |
| EP0865576A1 (en) * | 1996-10-17 | 1998-09-23 | Scroll Technologies | Scroll element having a relieved thrust surface |
| JP2006152930A (en) * | 2004-11-30 | 2006-06-15 | Hitachi Home & Life Solutions Inc | Scroll compressor |
| JP2009097357A (en) * | 2007-10-12 | 2009-05-07 | Mayekawa Mfg Co Ltd | Hermetically sealed scroll compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005038254A2 (en) * | 2003-10-17 | 2005-04-28 | Matsushita Electric Ind Co Ltd | Scroll compressor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960090A (en) * | 1982-09-29 | 1984-04-05 | Toshiba Corp | Scroll compressor |
-
1982
- 1982-12-17 JP JP22006482A patent/JPS59110883A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960090A (en) * | 1982-09-29 | 1984-04-05 | Toshiba Corp | Scroll compressor |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6162295U (en) * | 1984-09-28 | 1986-04-26 | ||
| JPS62142801A (en) * | 1985-12-18 | 1987-06-26 | Mitsubishi Heavy Ind Ltd | Scroll-type fluid machine |
| JPS62168986A (en) * | 1986-01-20 | 1987-07-25 | Matsushita Electric Ind Co Ltd | Scroll gaseous body compressor |
| JPS62261686A (en) * | 1986-05-09 | 1987-11-13 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| JPS63100287A (en) * | 1986-10-17 | 1988-05-02 | Matsushita Refrig Co | Scroll compressor |
| JPS63131879A (en) * | 1986-11-21 | 1988-06-03 | Matsushita Refrig Co | Scroll type compressor |
| US5000669A (en) * | 1987-09-08 | 1991-03-19 | Sanden Corporation | Hermetic scroll type compressor having two section chambers linked by inclined oil passage |
| JPH0222687U (en) * | 1988-07-29 | 1990-02-15 | ||
| US5082432A (en) * | 1989-06-02 | 1992-01-21 | Sanden Corporation | Axial sealing mechanism for a scroll type compressor |
| EP0865576A1 (en) * | 1996-10-17 | 1998-09-23 | Scroll Technologies | Scroll element having a relieved thrust surface |
| EP0865576A4 (en) * | 1996-10-17 | 2000-01-12 | Scroll Tech | Scroll element having a relieved thrust surface |
| JP2006152930A (en) * | 2004-11-30 | 2006-06-15 | Hitachi Home & Life Solutions Inc | Scroll compressor |
| JP4512479B2 (en) * | 2004-11-30 | 2010-07-28 | 日立アプライアンス株式会社 | Scroll compressor |
| JP2009097357A (en) * | 2007-10-12 | 2009-05-07 | Mayekawa Mfg Co Ltd | Hermetically sealed scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0134313B2 (en) | 1989-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3339055B2 (en) | Scroll machine | |
| JPS59110884A (en) | Scroll compressor | |
| JPS59110883A (en) | Scroll fluid machine | |
| TWI261089B (en) | Motor compressor lubrication | |
| JPH031516B2 (en) | ||
| JPH0535276B2 (en) | ||
| JPH02298601A (en) | Scroll type fluid machine | |
| JPS61106992A (en) | Rotary compressor | |
| JPH0642486A (en) | Fluid pump and rotary machine with it | |
| JP3468553B2 (en) | Horizontal rotary compressor | |
| JPS58195091A (en) | Rotary pump | |
| JP3511680B2 (en) | Rotary compressor | |
| JPS61234288A (en) | Oil feed construction of scroll type hydraulic machine | |
| JPH05240175A (en) | Scroll fluid machine | |
| JPH08232878A (en) | Rotary type sealed type compressor | |
| JPH02227583A (en) | Scroll compressor | |
| JPH11324944A (en) | Scroll compressor | |
| JPH01187388A (en) | Scroll compressor | |
| JPH09310689A (en) | Scroll type compressor | |
| JPS6215513Y2 (en) | ||
| JPS62139991A (en) | Scroll type compressor | |
| JPH07253089A (en) | Scroll type compressor | |
| JP6972391B2 (en) | Scroll compressor | |
| JP3036927B2 (en) | Scroll compressor | |
| JPH03217693A (en) | Scroll type compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |