JP2558630B2 - Scroll type compressor - Google Patents
Scroll type compressorInfo
- Publication number
- JP2558630B2 JP2558630B2 JP61021466A JP2146686A JP2558630B2 JP 2558630 B2 JP2558630 B2 JP 2558630B2 JP 61021466 A JP61021466 A JP 61021466A JP 2146686 A JP2146686 A JP 2146686A JP 2558630 B2 JP2558630 B2 JP 2558630B2
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- suction
- wrap
- ball
- orbiting
- 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
Classifications
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/0246—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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2250/101—Geometry of the inlet or outlet of the inlet
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/70—Safety, emergency conditions or requirements
- F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation
-
- 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
- F05B2250/501—Inlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (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、冷凍サイクル等に使用するスクロール型圧
縮機に関し、特に吸入孔部の構造に係わる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll compressor used in a refrigeration cycle or the like, and more particularly to the structure of a suction hole.
従来の技術 従来の構成を第４図，第５図，第６図にて説明する。
尚、図中の矢印は吸入ガスの流れを示す。１は密閉ケー
シング、２は電動機部であり、その上部にはブロック3,
固定スクロール4,旋回スクロール5,自転防止機構６にて
構成される機械部本体７が固定されている。固定スクロ
ール４は、鏡板4a及び鏡板4aに直立するインボリュート
又はインボリュートに類似した曲線にて形成され、一様
な厚さと高さを有するラップ4bより構成され、鏡板4aに
てブロック３に固定されている。又、旋回スクロール５
は鏡板5a及び鏡板5aに直立し、固定スクロール４のラッ
プ4bと同じ曲線を有するラップ5bより構成され、オルダ
ム機構と呼称される自転防止機構６により拘束されてい
る。そして、固定スクロール４と旋回スクロール５は、
各ラップ4b,5bの巻き終り端4b′,5b′をある角度ずらし
た状態で合わされている。2. Description of the Related Art A conventional configuration will be described with reference to FIGS. 4, 5, and 6.
The arrows in the figure show the flow of the suction gas. 1 is a closed casing, 2 is an electric motor part, and a block 3,
A machine unit body 7 composed of a fixed scroll 4, an orbiting scroll 5, and a rotation preventing mechanism 6 is fixed. The fixed scroll 4 is formed by an end plate 4a and an involute standing upright on the end plate 4a or a curved line similar to the involute, and is composed of a wrap 4b having a uniform thickness and height, and is fixed to the block 3 by the end plate 4a. There is. Also, the orbiting scroll 5
Is composed of an end plate 5a and a wrap 5b which is upright on the end plate 5a and has the same curve as the wrap 4b of the fixed scroll 4, and is restrained by a rotation preventing mechanism 6 called an Oldham mechanism. And the fixed scroll 4 and the orbiting scroll 5 are
The winding end ends 4b 'and 5b' of the respective wraps 4b and 5b are fitted together with a certain angle offset.
８は吐出孔、９は吸入孔であり、吐出孔８は固定スク
ロール４のインボリュートの中心部に、又吸入孔９は固
定スクロール４のインボリュートの巻終り端部4cと交わ
り設けられることにより吸入孔９は吸入室9aと連通して
いる。10は、旋回スクロール５に、そのラップ5bと反対
側の面に設けられた突起部であり、ラップ5bのインボリ
ュートの中心と同心である。11はブロック３に支承され
たシャフトであり、機械部本体７側の端部に設けられシ
ャフト中心より偏心したボス部11aに旋回スクロール５
の突起10を収納することにより電動機部２と旋回スクロ
ール５を連結している。また11bは給油路であり、ボス
部11aと密閉ケーシング１の下部を連通している。12は
旋回スクロール５の背面に形成された空間であり、吸入
室9aとは鏡板4a,5a間のクリアランスＡを介して連通し
ている。13は圧縮室又14は旋回スクロール５の反ラップ
側の鏡板5aと接触するスラスト保持機構（例えばボール
ベアリング等）である。15は吸入孔９と連通する吸入
管、16は吐出管である。又、吸入孔９には、弁17aとバ
ネ17bにより形成される逆止弁機構17が収納されてい
る。Reference numeral 8 is a discharge hole, and 9 is a suction hole. The discharge hole 8 is provided at the center of the involute of the fixed scroll 4, and the suction hole 9 is provided so as to intersect with the winding end end 4c of the involute of the fixed scroll 4. 9 communicates with the suction chamber 9a. Reference numeral 10 denotes a protrusion provided on the surface of the orbiting scroll 5 opposite to the wrap 5b, which is concentric with the center of the involute of the wrap 5b. Reference numeral 11 denotes a shaft supported by the block 3, and the orbiting scroll 5 is provided at a boss portion 11a provided at an end portion on the machine unit main body 7 side and eccentric from the shaft center
The orbiting scroll 5 is connected to the electric motor portion 2 by accommodating the protrusion 10. Further, 11b is an oil supply passage, which communicates the boss portion 11a with the lower portion of the closed casing 1. Reference numeral 12 denotes a space formed on the back surface of the orbiting scroll 5 and communicates with the suction chamber 9a via a clearance A between the end plates 4a and 5a. Reference numeral 13 is a compression chamber, and 14 is a thrust holding mechanism (for example, a ball bearing) that comes into contact with the end plate 5a on the side opposite to the wrap of the orbiting scroll 5. Reference numeral 15 is a suction pipe communicating with the suction hole 9, and 16 is a discharge pipe. A check valve mechanism 17 formed by a valve 17a and a spring 17b is housed in the suction hole 9.
次にスクロール圧縮機の圧縮機構について説明する。 Next, the compression mechanism of the scroll compressor will be described.
電動機部２の回転に伴うシャフト11の回転運動は、ボ
ス部11a,突起部10を介して旋回スクロール５に伝達され
るが、自転防止機構６の作用により旋回スクロール５は
自転することなく固定スクロール４のインボリュートの
中心を旋回中心として旋回運動する。このとき、旋回ス
クロール５のラップ5bの巻き終り端5b′が固定スクロー
ル４のラップ4bに、固定スクロール４のラップ4bの巻き
終り端4b′が旋回スクロール５のラップ5bに各々接触し
ている状態が吸入完了であり、旋回スクロール５の公転
運動に伴いラップ4bとラップ5b同士の２つの接触点がイ
ンボリュートの中心に近づくに従い圧縮空間13の圧力が
上昇する。The rotational movement of the shaft 11 due to the rotation of the electric motor unit 2 is transmitted to the orbiting scroll 5 via the boss portion 11a and the protruding portion 10, but the orbiting scroll 5 does not rotate by the action of the rotation preventing mechanism 6 and does not rotate. A turning motion is performed with the center of the involute of 4 as the turning center. At this time, the winding end 5b 'of the wrap 5b of the orbiting scroll 5 is in contact with the wrap 4b of the fixed scroll 4, and the winding end 4b' of the wrap 4b of the fixed scroll 4 is in contact with the wrap 5b of the orbiting scroll 5. Is completed, and the pressure of the compression space 13 increases as the two contact points between the wraps 4b and 5b approach the center of the involute along with the revolution movement of the orbiting scroll 5.
このスクロール圧縮機の圧縮機構により、吸入室9a内
の圧力が吸入管15部の圧力より低くなり、弁17aを押し
上げているバネ17bのバネ力よりその差圧による力が大
きくなり、逆止弁機構17が開状態となり吸入管15より吸
入孔9,吸入室9aを介して冷媒が吸入される。吸入された
冷媒は圧縮され吐出孔８を介して一旦密開ケーシング１
内に吐出された後、吐出管16を介して冷却システム（図
示せず）に吐出される。又、圧縮機を停止すると、旋回
スクロール５は逆転し、密閉ケーシング１内の高圧ガス
が逆流するため、吸入室9a内が高圧となるが、逆止弁機
構17の弁17aが吸入室9aと吸入管15間の差圧による力及
びバネ17bのバネ力のために第９図に破線で示す様に押
上げられ吸入管15の端部に接触することによりシールさ
れ、逆流を阻止し、その結果吸入室9aと密閉ケーシング
１内が同圧となる為逆転が止まる（例えば特開昭59−11
0884号にて示される）。Due to the compression mechanism of this scroll compressor, the pressure in the suction chamber 9a becomes lower than the pressure in the suction pipe 15, and the force due to the differential pressure becomes larger than the spring force of the spring 17b that pushes up the valve 17a. The mechanism 17 is opened and the refrigerant is sucked from the suction pipe 15 through the suction hole 9 and the suction chamber 9a. The sucked refrigerant is compressed and once discharged through the discharge hole 8, the casing 1
After being discharged into the inside, it is discharged to a cooling system (not shown) through a discharge pipe 16. Further, when the compressor is stopped, the orbiting scroll 5 reversely rotates and the high pressure gas in the closed casing 1 flows backward, so that the pressure in the suction chamber 9a becomes high, but the valve 17a of the check valve mechanism 17 becomes the suction chamber 9a. Due to the force due to the differential pressure between the suction pipes 15 and the spring force of the springs 17b, they are pushed up as shown by the broken line in FIG. As a result, the suction chamber 9a and the closed casing 1 have the same pressure, so that the reverse rotation is stopped (for example, JP-A-59-11).
No. 0884).
発明が解決しようとする問題点 この様な従来の方法では、吸入孔と吸入室の交わり部
における有効断面積は、交わり長さＬ×開孔高さＭにて
表わされる。大きな出力の圧縮機や気筒容積は小さいが
高速回転する圧縮機を設計する際に吸入時の圧力損失を
できるだけ抑えるために有効断面積を増加しようとし
て、交わり長さＬを増加すると、吸入孔の径が巻終り部
の巾とほぼ等しい場合には、逆止弁機構の弁が交わり部
に引掛り，動作が不確実になる問題があり、又これを避
ける為に吸入孔の径を大きくしても巻終り部の溝巾以上
の巾を得ることができず、又吸入孔径の大径化により圧
縮機自体が大径化する問題があった。又、開孔高さＭを
増加するために、巻終り部に一段深い切込み（第９図の
18）を入れる方法もあるが、この場合逆止弁機構の弁リ
フトが大きくなり、その結果このリフトを確保する為に
固定スクロールの高さが不必要に高くなる問題があっ
た。又、吸入孔を半径方向に設ける場合逆止弁のリフト
を大きくとらなければならず、大径化する問題があっ
た。本発明は上記従来例の問題点を解消するもので、圧
縮機の大型化を伴わずに吸入孔部の圧力損失を低減する
と共に、逆止弁機構の作動性を確保するものである。Problems to be Solved by the Invention In such a conventional method, the effective cross-sectional area at the intersection of the suction hole and the suction chamber is represented by the intersection length L × the opening height M. When designing a high output compressor or a compressor that rotates at a high speed with a small cylinder volume, increasing the intersection length L in order to increase the effective cross-sectional area in order to suppress the pressure loss at the time of suction increases the suction hole. If the diameter is almost equal to the width at the end of winding, there is a problem that the valve of the check valve mechanism will be caught at the intersection and the operation will be uncertain.In order to avoid this, increase the diameter of the suction hole. However, there is a problem in that it is not possible to obtain a width larger than the groove width at the end of winding, and the compressor itself becomes large due to the large suction hole diameter. In addition, in order to increase the hole height M, a deeper cut is made at the end of winding (see FIG. 9).
There is also a method of inserting 18), but in this case, the valve lift of the check valve mechanism becomes large, and as a result, the height of the fixed scroll becomes unnecessarily high to secure this lift. Further, when the suction hole is provided in the radial direction, the lift of the check valve has to be large, which causes a problem of increasing the diameter. The present invention solves the above-mentioned problems of the conventional example, and reduces the pressure loss in the suction hole portion without increasing the size of the compressor and ensures the operability of the check valve mechanism.
問題点を解決するための手段 本発明は、固定スクロールのラップ巻終り端部近傍に
収納されたボールと、このボールの転動を略円周方向の
みに規制するガイド手段を備え、ボールは旋回スクロー
ルのラップの旋回運動範囲外にてガイド手段に沿って転
動可能であり、且つこのボールの転動を利用して吸入孔
を開閉するようにしたものである。Means for Solving the Problems The present invention is provided with a ball accommodated in the vicinity of a wrap winding end of a fixed scroll and a guide means for restricting rolling of the ball only in a substantially circumferential direction. The scroll is capable of rolling along the guide means outside the swinging motion range of the wrap, and the rolling of the ball is used to open and close the suction hole.
作用 本発明は上記した構成により、運転中はボールが吸入
冷媒の流入により主に円周方向に転がることにより吸入
孔を開孔し、又停止時は高圧冷媒が圧縮室より吸入室に
流入し、吸入孔へ流出していく冷媒の流れの為に逆方向
に転がり吸入孔を閉止することとなり、従来の逆止弁に
比べて逆止弁のリフトに相当するものを従来の高さ方向
でも半径方向でもない円周方向にとることができるため
に小型化が可能になり、又ボールが吸入孔を完全に開孔
しさえすればボールの転動距離とは関係なく吸入面積を
確保でき圧力損失も減少することができ、更にボールの
転がりを利用した逆止弁である為、作動性が向上する等
の効果を有する。Action The present invention has the above-described configuration, and during operation, the balls mainly roll in the circumferential direction due to the inflow of the suction refrigerant to open the suction holes, and when stopped, the high pressure refrigerant flows from the compression chamber into the suction chamber. , Due to the flow of the refrigerant flowing out to the suction hole, it rolls in the opposite direction and closes the suction hole.Therefore, in comparison with the conventional check valve, the one equivalent to the lift of the check valve is used even in the conventional height direction. Since it can be taken in the circumferential direction instead of the radial direction, it can be downsized, and if the ball completely opens the suction hole, the suction area can be secured regardless of the rolling distance of the ball. Loss can be reduced, and further, since the check valve uses rolling of the ball, the operability is improved.
実 施 例 以下本発明の一実施例を第１図，第２図，第３図にて
説明する。尚、従来例と同一部分は同一符号を付し説明
を省略する。19はボールであり、固定スクロール４の巻
終り端部4cと旋回スクロール５の鏡板5b間に収納され
る。また20は固定スクロール４の巻終り端部4cに設けら
れたガイド手段としての切欠きである。21は半径方向に
設けられた吸入管、22は吸入孔であり、吸入孔22は吸入
管21と吸入室9aを連通している。EXAMPLE An example of the present invention will be described below with reference to FIGS. 1, 2, and 3. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 19 denotes a ball, which is housed between the winding end end 4c of the fixed scroll 4 and the end plate 5b of the orbiting scroll 5. Further, 20 is a notch as a guide means provided at the end 4c of the winding end of the fixed scroll 4. 21 is a suction pipe provided in the radial direction, 22 is a suction hole, and the suction hole 22 communicates the suction pipe 21 with the suction chamber 9a.
上記構成において、圧縮機が運転すると、従来と同様
に吸入室9a内の圧力が吸入管21内の圧力より低くなり従
ってボール19は、旋回スクロール５のラップ5b側に転動
していくが、ボール19は切欠き20のにより旋回スクロー
ル５のラップ5bの旋回運動範囲内に入ることを阻止され
る（第２図に切欠き20の形状を破線にて示す。）。この
状態にて吸入冷媒は、ボール19と固定スクロール４のラ
ップ4b,鏡板4a及び旋回スクロール５の鏡板5a間の隙間
を介して吸入室9aに吸入される。また圧縮機を停止する
と、従来と同様に吸入室9a内の圧力が高圧となり、ボー
ル19は第２図にて破線で示す位置に至り、ボール19の表
面により吸入孔22の開孔部が閉止され、圧縮機の逆転が
止まる。In the above structure, when the compressor operates, the pressure in the suction chamber 9a becomes lower than the pressure in the suction pipe 21 as in the conventional case, so the ball 19 rolls to the wrap 5b side of the orbiting scroll 5, The ball 19 is prevented by the notch 20 from entering the orbiting range of the wrap 5b of the orbiting scroll 5 (the shape of the notch 20 is shown by a broken line in FIG. 2). In this state, the suction refrigerant is sucked into the suction chamber 9a through the gap between the ball 19, the wrap 4b of the fixed scroll 4, the end plate 4a, and the end plate 5a of the orbiting scroll 5. When the compressor is stopped, the pressure in the suction chamber 9a becomes high as in the conventional case, the ball 19 reaches the position shown by the broken line in FIG. 2, and the surface of the ball 19 closes the opening of the suction hole 22. Then, the reverse rotation of the compressor stops.
従って、従来の逆止弁では、吸入管を軸方向及び半径
方向に設けるどちらの場合でも、それぞれ高さ方向及び
半径方向に逆止弁のリフトをとる必要があったが、本発
明においては、ボール19は主として円周方向に転動する
ため、吸入管21を半径方向及び軸方向のどちらに設けて
も圧縮機の小型化を図ることができる。またボール19が
吸入孔を完全に開孔しさえすれば、ボールの転動距離と
は関係なく吸入面積を確保でき、従って圧力損失を少な
くすることができ、又ボールの転動を利用している為に
従来の逆止弁に比べると良好な作動性を有する逆止弁機
構を提供できる。尚、本発明においてはボールの転動範
囲を規制するガイド手段として切欠きを設けたが、切欠
き以外の例えば停止板のようなものでも良いことはいう
までもない。Therefore, in the conventional check valve, in both cases where the suction pipe is provided in the axial direction and the radial direction, it is necessary to lift the check valve in the height direction and the radial direction, respectively. Since the ball 19 mainly rolls in the circumferential direction, the compressor can be downsized regardless of whether the suction pipe 21 is provided in the radial direction or the axial direction. Moreover, if the ball 19 completely opens the suction hole, the suction area can be secured irrespective of the rolling distance of the ball, and therefore the pressure loss can be reduced, and the rolling of the ball can be utilized. Therefore, it is possible to provide a check valve mechanism having better operability than the conventional check valve. In the present invention, the notch is provided as the guide means for restricting the rolling range of the ball, but it goes without saying that something other than the notch, such as a stop plate, may be used.
発明の効果 以上の如く本発明は、鏡板に直立するラップを有する
２つの互いにかみ合う旋回スクロール及び固定スクロー
ルと、固定スクロールのラップの外周に形成される吸入
室と、固定スクロールに形成され一端を吸入管と連通し
他端を固定スクロールのラップ巻終り端部近傍の吸入室
に連通する吸入孔と、固定スクロールのラップ巻終り端
部近傍と旋回スクロールの鏡板間に収納されたボール
と、このボールの転動を略円周方向のみに規制するガイ
ド手段を備え、ボールは旋回スクロールのラップの旋回
運動範囲外に位置し且つボールがガイド手段に沿って転
動して吸入孔と吸入室間を開閉するように構成したもの
であるから、吸入時の圧力損失が少なく作動性の良好な
逆止弁機構とすることができ、又圧縮機の小型化を図れ
る等の効果を有する。EFFECTS OF THE INVENTION As described above, according to the present invention, two orbiting scrolls and fixed scrolls having wraps standing upright on the end plate, intermeshing chambers formed on the outer circumference of the wraps of the fixed scrolls, and one end formed on the fixed scrolls are sucked. A suction hole that communicates with the pipe and communicates the other end with a suction chamber near the end of the wrap winding of the fixed scroll, a ball stored between the end of the wrap winding of the fixed scroll and the end plate of the orbiting scroll, and this ball Is provided with a guide means for restricting the rolling of the roller in the substantially circumferential direction only, the ball is located outside the orbiting motion range of the wrap of the orbiting scroll, and the ball rolls along the guide means to move between the suction hole and the suction chamber. Since it is configured to open and close, a check valve mechanism with less pressure loss during suction and good operability can be obtained, and the compressor can be downsized. Have.
第１図は本発明の一実施例を示すスクロール型圧縮機の
縦断面図、第２図は第１図のII−II′線における横断面
図、第３図は第２図のIII−III′線における吸入孔部の
拡大図、第４図は従来のスクロール型圧縮機の縦断面
図、第５図は第４図のＶ−Ｖ′線における横断面図、第
６図は第５図のVI−VI′線における吸入孔部の拡大断面
図である。 ４……固定スクロール、4a……固定スクロールの鏡板、
4b……固定スクロールのラップ、4c……固定スクロール
のラップ巻終り端部、５……旋回スクロール、5a……旋
回スクロールの鏡板、5b……旋回スクロールのラップ、
19……ボール、21……吸入管、22……吸入孔。1 is a vertical sectional view of a scroll compressor showing an embodiment of the present invention, FIG. 2 is a horizontal sectional view taken along the line II-II 'of FIG. 1, and FIG. 3 is a III-III of FIG. 4 is an enlarged view of the suction hole along the line ', FIG. 4 is a vertical cross-sectional view of a conventional scroll compressor, FIG. 5 is a cross-sectional view taken along the line VV' of FIG. 4, and FIG. 6 is FIG. FIG. 6 is an enlarged cross-sectional view of the suction hole portion taken along line VI-VI ′ of FIG. 4 ... fixed scroll, 4a ... fixed scroll end plate,
4b: Fixed scroll wrap, 4c: Fixed scroll wrap Winding end, 5 ... Orbiting scroll, 5a ... Orbiting scroll end plate, 5b ... Orbiting scroll wrap,
19 …… Ball, 21 …… Suction pipe, 22 …… Suction hole.
Claims (1)
にかみ合う旋回スクロール及び固定スクロールと、前記
固定スクロールのラップの外周に形成される吸入室と、
前記固定スクロールに形成され一端を吸入管と連通し他
端を前記固定スクロールのラップ巻終り端部近傍の吸入
室に連通する吸入孔と、前記固定スクロールのラップ巻
終り端部近傍と前記旋回スクロールの鏡板間に収納され
たボールと、前記ボールの転動を略円周方向のみに規制
するガイド手段を備え、前記ボールは前記旋回スクロー
ルのラップの旋回運動範囲外に位置し前記旋回スクロー
ルの旋回による圧力変化により前記ボールが前記ガイド
手段に沿って転動して前記吸入孔と吸入室間を開閉する
ように構成したスクロール型圧縮機。1. An orbiting scroll and a fixed scroll which are engaged with each other and have a wrap standing upright on an end plate, and a suction chamber formed on the outer periphery of the wrap of the fixed scroll.
A suction hole formed in the fixed scroll and having one end communicating with a suction pipe and the other end communicating with a suction chamber near the end of the wrap winding end of the fixed scroll, the vicinity of the end of the wrap winding end of the fixed scroll, and the orbiting scroll. A ball housed between the end plates of the orbit and guide means for restricting the rolling of the ball substantially only in the circumferential direction, the ball being located outside the orbiting range of the orbiting scroll wrap, and the orbiting of the orbiting scroll. A scroll compressor configured such that the ball rolls along the guide means and opens and closes between the suction hole and the suction chamber due to a change in pressure caused by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61021466A JP2558630B2 (en) | 1986-02-03 | 1986-02-03 | Scroll type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61021466A JP2558630B2 (en) | 1986-02-03 | 1986-02-03 | Scroll type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62182485A JPS62182485A (en) | 1987-08-10 |
| JP2558630B2 true JP2558630B2 (en) | 1996-11-27 |
Family
ID=12055759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61021466A Expired - Lifetime JP2558630B2 (en) | 1986-02-03 | 1986-02-03 | Scroll type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2558630B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396679A (en) * | 1989-09-07 | 1991-04-22 | Daikin Ind Ltd | Scroll type fluid machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193091U (en) * | 1982-06-18 | 1983-12-22 | 三洋電機株式会社 | Rotary compressor suction device |
| JPS59110884A (en) * | 1982-12-17 | 1984-06-26 | Hitachi Ltd | Scroll compressor |
| JPS59141782A (en) * | 1983-02-02 | 1984-08-14 | Hitachi Ltd | Scroll fluid device |
| JPS60167185U (en) * | 1984-04-12 | 1985-11-06 | 三洋電機株式会社 | Rotary compressor reverse rotation prevention device |
-
1986
- 1986-02-03 JP JP61021466A patent/JP2558630B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62182485A (en) | 1987-08-10 |
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