JPH0214559B2 - - Google Patents
Info
- Publication number
- JPH0214559B2 JPH0214559B2 JP58014509A JP1450983A JPH0214559B2 JP H0214559 B2 JPH0214559 B2 JP H0214559B2 JP 58014509 A JP58014509 A JP 58014509A JP 1450983 A JP1450983 A JP 1450983A JP H0214559 B2 JPH0214559 B2 JP H0214559B2
- Authority
- JP
- Japan
- Prior art keywords
- suction
- fixed scroll
- passage hole
- suction 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 238000003754 machining 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2250/00—Geometry
- F04C2250/10—Geometry of the inlet or outlet
- F04C2250/102—Geometry of the inlet or outlet of the outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/50—Inlet or outlet
- F05B2250/502—Outlet
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、本出願人の出願に係る先願発明（特
開昭59−110884号公報参照）の改良に関するもの
で、特にスクロール圧縮機の改良された吸入構造
に関する。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to an improvement of the earlier invention filed by the present applicant (see Japanese Patent Application Laid-Open No. 110884/1984), and particularly relates to an improvement of a scroll compressor. Regarding the inhalation structure.
［先行技術］
上記先願発明のスクロール圧縮機は、鏡板を貫
通して吸入室に連通する吸入通路孔を有する固定
スクロール及び旋回スクロールを備え、前記固定
スクロールのラツプ間溝内で前記旋回スクロール
を旋回運動させることによりそのラツプ巻き終り
部先端を揺動させて２つの圧縮室に交互にガスを
吸入させるようにし、該吸入ガスを圧縮固定スク
ロールの吐出口から吐出するスクロール圧縮機に
おいて、前記吸入通路孔で前記固定スクロールの
溝先端部の溝巾中心線上で前記ラツプ巻き終り部
先端近傍の位置において軸方向に延びる円筒孔に
形成するとともに、前記吸入通路孔と前記固定ス
クロールの溝先端部とを吸入通路孔直径より小さ
い寸法巾の開口を得るように交叉させた連通開口
部を形成し、前記開口部以外の吸入通路孔の内壁
面をガイド面として移動し、運動時は吸入ガス圧
力により吸入通路孔を開き、停止時はバネにより
付勢され吸入管の端面に当接して吸入通路孔で閉
じる弁を設けたことを特徴とするもので、この発
明によれば、停止時に旋回スクロールが逆転する
ことなく、かつ油溜部の油が吸入側へ逆流するの
を防ぐことができ、しかも吸入効率が良くて、構
造簡単にして、加工、組立生産性の良い、吸入通
路孔と組合せた弁構造を有するスクロール圧縮機
が提供される。[Prior Art] The scroll compressor of the prior invention includes a fixed scroll and an orbiting scroll having a suction passage hole that passes through an end plate and communicates with a suction chamber, and the orbiting scroll is arranged in a groove between laps of the fixed scroll. In a scroll compressor in which the tip of the end of the wrap is swung by a rotating motion so that gas is alternately sucked into two compression chambers, and the sucked gas is discharged from the discharge port of a compression fixed scroll, the suction The passage hole is formed as a cylindrical hole extending in the axial direction at a position near the end of the wrap winding end on the center line of the groove width of the groove tip of the fixed scroll, and the suction passage hole and the groove tip of the fixed scroll A communication opening is formed by intersecting the two to obtain an opening with a width smaller than the diameter of the suction passage hole, and the inner wall surface of the suction passage hole other than the opening is used as a guide surface to move, and during movement, the suction gas pressure The invention is characterized in that a valve is provided which opens the suction passage hole and is biased by a spring and comes into contact with the end face of the suction pipe and closes at the suction passage hole when stopped.According to this invention, the orbiting scroll is closed when stopped. It can prevent the oil in the oil sump from flowing back to the suction side without reversing, and has good suction efficiency, and is combined with a suction passage hole that has a simple structure and good machining and assembly productivity. A scroll compressor having a valve structure is provided.
上記のスクロール圧縮機を第１図、第２図によ
り説明する。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とフ
レーム３で旋回スクロール１をはさんで保持す
る。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の外周より圧縮機に流
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によつて自転を防止し、偏心した
クランク軸７により旋回軸受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より吐出室へ吐出する。一
方吸入管４は固定スクロール２の巻き終わり部１
２に駆動軸７方向に、０リング１３を介して固定
スクロール２と接続される。また吸入管４は蓋チ
ヤンバ１４に溶接されている。固定スクロール２
の巻き終り部１２はＲ形状に加工されている。吸
入配管４と固定スクロール２の巻き終り部１２と
は円筒孔１５によつて連通している。。吸入配管
４の端面１６は歯底面１７より奥に入つている。
また吸入円筒孔１５内にはバネ１８とピストン弁
９が設けられ、運転中はピストン弁１９の上下の
圧力差によつて下部に移動し、運転停止時には、
吸入管４の端面１６に密着する構造になつてい
る。 The above scroll compressor will be explained with reference to FIGS. 1 and 2. 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 frame 3. The suction refrigerant is sucked through the suction pipe 4 and flows into the compressor from the outer periphery of the fixed scroll 2 and the orbiting scroll 1. The orbiting scroll 1 is prevented from rotating by an Oldham key 5 and an Oldham ring 6, and is moved differentially by an eccentric crankshaft 7 via an orbiting bearing 8 to sequentially transfer and compress the closed space 9 toward the center.
Refrigerant gas is discharged from the discharge port 10 into the discharge chamber. On the other hand, the suction pipe 4 is connected to the end portion 1 of the fixed scroll 2.
2 is connected to the fixed scroll 2 via an O-ring 13 in the direction of the drive shaft 7. The suction pipe 4 is also welded to the lid chamber 14. Fixed scroll 2
The end portion 12 of the winding is processed into an R shape. The suction pipe 4 and the winding end portion 12 of the fixed scroll 2 communicate with each other through a cylindrical hole 15. . The end surface 16 of the suction pipe 4 is located deeper than the tooth bottom surface 17.
In addition, a spring 18 and a piston valve 9 are provided in the suction cylindrical hole 15, and during operation, the piston valve 19 moves downward due to the pressure difference between the upper and lower sides, and when the operation is stopped,
It has a structure that makes close contact with the end surface 16 of the suction pipe 4.
以上説明した先願発明は、前述した効果を有す
るが、その吸入構造に関し、なお次のような問題
点があつた。すなわち、ピストン弁１９と円筒孔
１５との間には隙まがあり上下移動をするが、上
部へ移動するとき、歯底面１７の角部にピストン
弁19の一部が引かかることがあるため、ピストン
弁１９が傾き、その移動を妨げる欠点がある。ま
た、固定スクロール２のラツプ２０の高さが低い
小容量の機械ではピストン弁１９のストロークは
取れるが、吸入円筒孔１５と巻き終わり部１２と
の開口面積が小さく、流路抵抗が大きくなり、し
たがつて性能低下の原因となる欠点があつた。 Although the prior invention described above has the above-mentioned effects, it still has the following problems regarding its inhalation structure. That is, there is a gap between the piston valve 19 and the cylindrical hole 15 and it moves up and down, but when moving upward, a part of the piston valve 19 may get caught on the corner of the tooth bottom surface 17. However, there is a drawback that the piston valve 19 is tilted and its movement is hindered. Furthermore, in a small-capacity machine in which the height of the wrap 20 of the fixed scroll 2 is low, the stroke of the piston valve 19 can be achieved, but the opening area between the suction cylindrical hole 15 and the winding end portion 12 is small, and the flow path resistance becomes large. Therefore, there was a drawback that caused a decrease in performance.
本発明は上記の点に鑑みてなされたもので、ピ
ストン弁の上下運動を円滑にすると同時に、吸入
圧力損失を減らすことを目的としたものである。
The present invention has been made in view of the above points, and aims at smoothing the vertical movement of a piston valve and at the same time reducing suction pressure loss.
本発明は上記の目的を達成するために、前述し
た先願発明の弁構造部における円筒孔には吸入管
をその端面が固定スクロールの歯底面に達しない
深さに嵌着させ、前記連通開口部に隣接した固定
スクロールの歯底面部位に前記連通開口部を前記
吸入管の端面より僅かに上部位置まで延ばすため
の座ぐり部を設け、前記開口部以外の吸入通路孔
の内壁面をガイド面として移動し、運転時は吸入
ガス圧力により吸入通路孔を開き、停止時はバネ
により付勢され吸入管の端面に当接して吸入通路
孔を閉じる弁を設けるものとした。
In order to achieve the above object, the present invention has a suction pipe fitted into the cylindrical hole in the valve structure of the prior invention to a depth such that its end surface does not reach the tooth bottom surface of the fixed scroll, and the communication opening A counterbore portion is provided in the bottom surface of the fixed scroll adjacent to the tooth portion for extending the communication opening portion to a position slightly above the end surface of the suction pipe, and the inner wall surface of the suction passage hole other than the opening portion is provided as a guide surface. A valve is provided that opens the suction passage hole by the suction gas pressure during operation, and closes the suction passage hole by being biased by a spring and abutting the end face of the suction pipe when stopped.
以下、本発明の一実施例を第４図、５図にもと
づいて説明する。
Hereinafter, one embodiment of the present invention will be described based on FIGS. 4 and 5.
第４図、第５図で第１図ないし第３図と同一符
号の部分は先願発明と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。 In FIGS. 4 and 5, parts having the same reference numerals as those in FIGS. 1 to 3 indicate parts that are the same or equivalent to those of the prior invention, and explanations of their structures and operations will be omitted.
第４図において固定スクロール２の巻き終わり
部１２は円弧状に歯底面１７より吸入管端面１６
より深く加工されている。この座ぐり２１によつ
てピストン弁１９は吸入管４端面１６まで円滑に
移動可能になる。また吸入円筒孔１５と巻き終わ
り部１２との開口面積が増加したため圧力損失を
生じることなく吸入可能になる。この効果はスク
ロール歯の高さｈが小さい小容量の機械において
特に効果が著るしい。 In FIG. 4, the winding end portion 12 of the fixed scroll 2 is arranged in an arc shape from the tooth bottom surface 17 to the suction pipe end surface 16.
It is processed more deeply. This counterbore 21 allows the piston valve 19 to move smoothly up to the end surface 16 of the suction pipe 4. Furthermore, since the opening area between the suction cylindrical hole 15 and the winding end portion 12 has been increased, suction can be performed without causing pressure loss. This effect is particularly remarkable in small-capacity machines where the height h of the scroll teeth is small.
本発明は上記の如く構成したので、先願発明の
効果を奏するのに加えてピストン弁の円滑な運動
が行なわれるとともに吸入通路抵抗の少ない、効
率の良い運動が可能であり、また構造が簡単であ
るので安価である等の効果を奏する。
Since the present invention is constructed as described above, in addition to producing the effects of the prior invention, the piston valve can move smoothly, have less suction passage resistance, and can move efficiently, and has a simple structure. Therefore, it has advantages such as being inexpensive.
第１図は先願発明のスクロール圧縮機の断面
図、第２はＡ−Ａ断面図、第３図は吸入管、バ
ネ、ピストンと固定スクロールの組合せた状態で
運転中における断面図である。第４図は本発明に
基づくザグリを設けた断面図、第５図は本発明に
基づく吸入管部の詳細断面図である。
１……旋回スクロール、２……固定スクロー
ル、３……フレーム、４……吸入管、１８……バ
ネ、１９……ピストン弁、２１……座ぐり部。
FIG. 1 is a cross-sectional view of the scroll compressor of the prior invention, the second is a cross-sectional view taken along the line A-A, and FIG. 3 is a cross-sectional view of the scroll compressor in operation with the suction pipe, spring, piston, and fixed scroll combined. FIG. 4 is a cross-sectional view with a counterbore according to the present invention, and FIG. 5 is a detailed cross-sectional view of the suction pipe section according to the present invention. DESCRIPTION OF SYMBOLS 1... Orbiting scroll, 2... Fixed scroll, 3... Frame, 4... Suction pipe, 18... Spring, 19... Piston valve, 21... Spot facing portion.
Claims (1)
を有する固定スクロール及び施回スクロールを備
え、前記固定スクロールのラツプ間溝内で前記旋
回スクロールを旋回運動させることによりそのラ
ツプ巻き終り部先端を揺動させて２つの圧縮室に
交互にガスを吸入させるようにし、該吸入ガスを
圧縮固定スクロールの吐出口から吐出するスクロ
ール圧縮機において、 前記吸入通路孔で前記固定スクロールの溝先端
部の溝巾中心線上で前記ラツプ巻き終り部先端近
傍の位置において軸方向に延びる円筒孔に形成す
るとともに、前記吸入通路孔と前記固定スクロー
ルの溝先端部とを吸入通路孔直径より小さい寸法
巾の開口を得るように交叉させた連通開口部を形
成し、前記円筒孔には吸入管をその端面が固定ス
クロールの歯底面に達しない深さに嵌着させ、前
記連通開口部に隣接した固定スクロールの歯底面
部位に前記連通開口部を前記吸入管の端面より僅
かに上部位置まで延ばすための座ぐり部を設け、
前記開口部以外の吸入通路孔の内壁面をガイド面
として移動し、運動時は吸入ガス圧力により吸入
通路孔を開き、停止時はバネにより付勢され吸入
管の端面に当接して吸入通路孔を閉じる弁を設け
ことを特徴とするスクロール圧縮機。[Scope of Claims] 1. A fixed scroll and an orbiting scroll having a suction passage hole that passes through an end plate and communicates with a suction chamber, and the orbiting scroll is rotated in a groove between the laps of the fixed scroll. A scroll compressor in which gas is alternately sucked into two compression chambers by swinging a tip end of a wrap winding end, and the sucked gas is discharged from a discharge port of a compressed fixed scroll, wherein the fixed scroll is connected to the suction passage hole. A cylindrical hole is formed that extends in the axial direction at a position near the end of the wrap winding end on the center line of the groove width of the groove tip, and the suction passage hole and the groove tip of the fixed scroll are separated from each other by a diameter of the suction passage hole. Intersecting communication openings are formed to obtain an opening with a small width, and a suction pipe is fitted into the cylindrical hole to a depth that its end surface does not reach the tooth bottom surface of the fixed scroll. providing a counterbore in the bottom surface of the adjacent fixed scroll for extending the communication opening to a position slightly above the end surface of the suction pipe;
It moves using the inner wall surface of the suction passage hole other than the opening as a guide surface, and during movement, the suction passage hole is opened by the suction gas pressure, and when stopped, it is biased by a spring and comes into contact with the end face of the suction pipe, opening the suction passage hole. A scroll compressor characterized by being provided with a valve for closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1450983A JPS59141782A (en) | 1983-02-02 | 1983-02-02 | Scroll fluid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1450983A JPS59141782A (en) | 1983-02-02 | 1983-02-02 | Scroll fluid device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59141782A JPS59141782A (en) | 1984-08-14 |
| JPH0214559B2 true JPH0214559B2 (en) | 1990-04-09 |
Family
ID=11863036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1450983A Granted JPS59141782A (en) | 1983-02-02 | 1983-02-02 | Scroll fluid device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59141782A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2558630B2 (en) * | 1986-02-03 | 1996-11-27 | 松下冷機株式会社 | Scroll type compressor |
| JPS62182486A (en) * | 1986-02-03 | 1987-08-10 | Matsushita Refrig Co | Scroll type compressor |
| JPH0749027Y2 (en) * | 1989-01-30 | 1995-11-13 | 岩田塗装機工業株式会社 | Scroll fluid machinery |
| US7985597B2 (en) | 2002-04-16 | 2011-07-26 | Universitat Bern | Process and apparatus for providing a gaseous substance for the analysis of chemical elements or compounds |
| JP5690639B2 (en) * | 2011-04-14 | 2015-03-25 | 日立アプライアンス株式会社 | Scroll compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51154708U (en) * | 1975-05-30 | 1976-12-09 |
-
1983
- 1983-02-02 JP JP1450983A patent/JPS59141782A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59141782A (en) | 1984-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |