JPS58160580A - Scroll fluidic device - Google Patents

Scroll fluidic device

Info

Publication number
JPS58160580A
JPS58160580A JP4273382A JP4273382A JPS58160580A JP S58160580 A JPS58160580 A JP S58160580A JP 4273382 A JP4273382 A JP 4273382A JP 4273382 A JP4273382 A JP 4273382A JP S58160580 A JPS58160580 A JP S58160580A
Authority
JP
Japan
Prior art keywords
scroll
chamber
pressure
fixed
hole
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.)
Pending
Application number
JP4273382A
Other languages
Japanese (ja)
Inventor
Takahiro Tamura
田村　貴寛
Naoshi Uchikawa
内川　直志
Akira Murayama
朗 村山
Takao Mizuno
隆夫 水野
Hiroaki Kuno
久野　裕章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4273382A priority Critical patent/JPS58160580A/en
Publication of JPS58160580A publication Critical patent/JPS58160580A/en
Pending legal-status Critical Current

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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE:To improve performance of a device, by providing a conduction hole communicating a back pressure chamber, which applies pressing force of a turning scroll to a fixed scroll, to a high pressure delivery chamber and always fixing pressing force between the both turning and fixed scrolls in no relation to a level of pressure ratio. CONSTITUTION:A conduction hole 16 communicating a back pressure chamber 15 to a delivery chamber 10, that is, a high pressure part is provided to a frame 3 of a scroll compressor, and a part of high pressure gas in the chamber 10 flows into the chamber 15 through the hole 16. Then if the chamber 15 increases its pressure to at least a fixed level, high pressure gas flows into an enclosed space 8 from a communication hole 14 drilled to a turning scroll 1 to hold the chamber 15 to a fixed pressure. Accordingly, pressing force of the scroll 1 to a fixed scroll 2 is always fixed to improve compression performance. While a difference pressure controller consisting of a piston 17, spring 18, etc. is provided to the inside of the hole 16 to further surely hold the chamber 15 to a fixed pressure.

Description

【発明の詳細な説明】 本発明は圧ｍ機、膨張機あるいは流体ボンダ等に利用さ
れるスクロール流体装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scroll fluid device used in a pressure machine, an expander, a fluid bonder, or the like.

第１図は従来のスクロール圧縮機の断面図を示している
。図に２いて、旋回スクロール１と固定スクロール２と
は対向して組合わせらＡＸ旋回スクロール１は固定スク
ロール２とフレーム３とで挾持さルている。まｆｃ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
よって自転を阻止されつつ、偏心したクランク軸ｒＶｃ
よ０旋回軸企 受を介して−い差運動して、固定スクロール２との間の
密閉空間８を順次中心方向へ移送圧縮する。従って、吸
入−１１４を介して旋回スクロール１と固定スクロール
２との密閉空間８に流入した冷媒は、前記旋回スクロー
ル１のさい差運動により圧縮されて吐出口９よす吐出室
１０へ吐出される。FIG. 1 shows a cross-sectional view of a conventional scroll compressor. In FIG. 2, an orbiting scroll 1 and a fixed scroll 2 are assembled facing each other, and the AX orbiting scroll 1 is held between the fixed scroll 2 and a frame 3. The fc orbiting scroll 1 is prevented from rotating by the Oldham key 5 and the Oldham ring 6, and the eccentric crankshaft rVc
It makes a differential movement through the zero rotation axis, and sequentially transfers and compresses the closed space 8 between it and the fixed scroll 2 toward the center. Therefore, the refrigerant flowing into the closed space 8 between the orbiting scroll 1 and the fixed scroll 2 through the suction 114 is compressed by the differential movement of the orbiting scroll 1 and is discharged from the discharge port 9 to the discharge chamber 10. .

前記クランク軸？ｒＬｓ軸受Ｉｔ、１１を介してフレー
ム３に支持されると共にステータ１２及びロータ１３か
ら成るモータの駆動力により回転されるようになってい
る。一方、旋回スクロール１には、密閉空間８と、旋回
スクロールと７レーム３との間に形成さＡ７を背圧室１
５とを連通ずる連通孔１５が穿設されている。そして前
記背圧室１５は吸入圧力と吐出圧力との中間圧力になさ
れて、旋回スクロール１を固定スクロール２へ押し付け
てｉる。Said crankshaft? It is supported by the frame 3 via the rLs bearing It, 11, and is rotated by the driving force of a motor consisting of a stator 12 and a rotor 13. On the other hand, the orbiting scroll 1 has a closed space 8 and a back pressure chamber 1 A7 formed between the orbiting scroll and the seventh frame 3.
A communication hole 15 is bored to communicate with 5. The back pressure chamber 15 is set to an intermediate pressure between the suction pressure and the discharge pressure, thereby pressing the orbiting scroll 1 against the fixed scroll 2.

前記のスクロール圧縮機において、旋回スクロール１が
固定スクロール２に一定の力で押し付けられないと摩擦
力が増加して、両スクロール間で焼付を生ずる。まえ両
スクロール間の密閉室間８の総合力が、ＩＩｌ記押し付
は力よりも大暑くなると、旋回スクロール１は固定スク
ロール２から離れて圧縮性能の低下の原因となる。In the scroll compressor described above, if the orbiting scroll 1 is not pressed against the fixed scroll 2 with a constant force, the frictional force will increase and seizure will occur between both scrolls. If the total force between the closed chambers 8 between both scrolls becomes much hotter than the pressing force described in IIl, the orbiting scroll 1 will separate from the fixed scroll 2, causing a decrease in compression performance.

従うて、通常は前記連通孔１５を密閉空間８の圧力が一
定の圧力となる箇所に設けているが、しかし圧力比が大
暑い場合には連通孔１５が開口している″ａ閉空間８の
圧力が一定値に適せず、１１１回スクロール１が固定ス
クロール２から離れてしまい圧ａ性能を招く問題がある
。そして、この問題はスクロール圧−橋に限らず、ｊＩ
！！脹機、流体ポンプ等においても同様に生じていた。Therefore, normally the communication hole 15 is provided at a location where the pressure in the closed space 8 is constant; however, if the pressure ratio is very high, the communication hole 15 is opened and the closed space 8 is closed. There is a problem in that the pressure is not suitable for a constant value, and the scroll 1 separates from the fixed scroll 2 111 times, resulting in pressure a performance.This problem is not limited to the scroll pressure bridge, but
! ! The same problem occurred in inflators, fluid pumps, etc.

本発明の目的は、従来技術の１′１４雇点を解消し、圧
力比の大小に拘わらず、常に旋回スクロールを固定スク
ロールへ一定の力で押し付けるようＫして、性能の向上
を計れるスクロール流体装置を提供するＫある。An object of the present invention is to provide a scroll fluid that can improve performance by eliminating the 1'14 point problem of the prior art and always pressing the orbiting scroll against the fixed scroll with a constant force regardless of the pressure ratio. K provides equipment.

この目的を連成するために１本発明は、対向して組合わ
せられる固定スクロール及び旋回スクロールと、旋回ス
クロールを固定スクロールとで挾持するフレームと、旋
回スクロールと前記フレームとの関に形成されて、旋回
スクロールＫｌｌ定スクロールへの押付力を付与する背
圧室と、旋回スクロールに穿設され、固定スクロールと
旋回スクロールとの密閉空間と前記背圧室とを連通させ
る連通孔とを備え、前記背圧室の圧力を吸入圧力と吐出
圧力との中間圧力としたスクロール流体装置において、
前記７ノームに、前記背圧室と高圧部とを連通する導通
孔を設けたことを特徴とする。In order to achieve this object, the present invention provides a fixed scroll and an orbiting scroll that are combined to face each other, a frame that holds the orbiting scroll between the fixed scroll, and a frame that is formed between the orbiting scroll and the frame. , a back pressure chamber that applies a pressing force to the orbiting scroll Kll constant scroll, and a communication hole that is bored in the orbiting scroll and communicates the sealed space between the fixed scroll and the orbiting scroll with the back pressure chamber, In a scroll fluid device in which the pressure in the back pressure chamber is an intermediate pressure between suction pressure and discharge pressure,
The seventh norm is characterized in that a through hole is provided in the seven nodes to communicate the back pressure chamber and the high pressure section.

以下、本発明の一実施例を図面に従って具体的に説明す
る。１ｌＥ２図は本発＃４ＩＣよるスクロール圧縮機の
要部の断面図を示し、第１図と同じ符号のものは同じも
の、もしくは相当するものを表わしている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 11E2 shows a sectional view of the main parts of a scroll compressor according to #4 IC of the present invention, and the same reference numerals as in FIG. 1 represent the same or equivalent parts.

本発明のスクロール圧縮機では、フレーム３に８、背圧
８１５と高圧部である吐出室１０とを連通する導通孔１
６を設けている。In the scroll compressor of the present invention, the frame 3 has a through hole 1 which communicates the back pressure 815 with the discharge chamber 10 which is a high pressure section.
There are 6.

しかるに、背圧室１５には前記導通孔１６を介して吐出
１１１０内の高圧ガスの一部が流入する。However, a portion of the high pressure gas in the discharge 1110 flows into the back pressure chamber 15 through the conduction hole 16.

そして背圧室１５が一定圧力以上になると、旋回スクロ
ール１に穿った連通孔１４より密閉空間８へ高圧ガスは
流れて背圧！１１５は一定圧力に保持さ１条。When the pressure in the back pressure chamber 15 reaches a certain level or higher, high pressure gas flows into the sealed space 8 through the communication hole 14 bored in the orbiting scroll 1, and the back pressure is increased! 115 is one line held at a constant pressure.

従って、旋回スクロール１の固定スクロール２への押し
付は力が當に一定となり、圧縮性能が向上される。Therefore, the pressing force of the orbiting scroll 1 against the fixed scroll 2 is kept constant, and compression performance is improved.

まま、前記実施例において、第３図に示すように前記導
通孔１６内に１　　ピストン１１、ばね１８等から成る
差圧制御機構を設ければ、背圧室１５の一定圧力保持を
更に＠夷に行うことができる。In the above embodiment, if a differential pressure control mechanism consisting of a piston 11, a spring 18, etc. is provided in the through hole 16 as shown in FIG. 3, the pressure in the back pressure chamber 15 can be maintained at a constant level. can be done.

クロールへ一定の力で押し付ゆるようにしたから、性能
の向上を計れる効果がある。Since it is pressed against the crawl with a constant force, it has the effect of improving performance.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のスクロール圧縮機の断面図、第２図は本
発明によるスクロール圧縮機の４１１断面図、第３図は
第２図における導通孔に差圧制御機構を設けた断面図で
ある。 １・・・旋回スクロール　　２・・・一定スクロール３
・・・フレーム　　８・・・密閉空間　　１０・・・吐
出室（高圧部）　　１４・・・連通孔　　１５・・・背
圧室１６・・・導通孔　　１７．１８・・・差圧制御機
構のピストン及びばね 代理人　弁場士　薄　１）利　幸 第２１￥） 囁りｌFig. 1 is a sectional view of a conventional scroll compressor, Fig. 2 is a 411 sectional view of a scroll compressor according to the present invention, and Fig. 3 is a sectional view of the through hole in Fig. 2 provided with a differential pressure control mechanism. . 1...Orbital scroll 2...Constant scroll 3
Frame 8 Sealed space 10 Discharge chamber (high pressure part) 14 Communication hole 15 Back pressure chamber 16 Communication hole 17.18 Differential pressure control mechanism Piston and spring agent Susuki 1) Toshiyuki 21 yen) Whisper l

Claims (1)

【特許請求の範囲】 １、対向して組合わせられる固定スクロール及び旋回ス
クロールと、旋回スクロールを固定スクロールとで挾持
する７Ｖ−ふと、旋回スクロールと前記フレームとの閾
に形成されて、旋回スクロールに固定スクロールへの押
付力を付与する背圧室と、旋回スクロールに穿設され、
固定スクロールと旋回スクロールとの密閉空間と前記背
圧室とを連通させる連通孔とを備え、前記背圧室の圧力
を吸入圧力と吐出圧力との中間圧力としたスクロール流
体装置において、前記７し一ムに、前記背圧室と高圧部
とを連通する導通孔を設けたことをｔｆＩｖＩＬとする
スクロール流体装置。 ２、前記導通孔は、差圧制御４機構を具えていることを
特徴とする特許請求の範囲第１項記載のスクロール流体
装置。[Claims] 1. A fixed scroll and an orbiting scroll that are combined to face each other, and a 7V that sandwiches the orbiting scroll with the fixed scroll. A back pressure chamber that applies pressing force to the fixed scroll, and a back pressure chamber bored in the orbiting scroll,
In the scroll fluid device, the scroll fluid device includes a communication hole that communicates the sealed space between the fixed scroll and the orbiting scroll and the back pressure chamber, and sets the pressure in the back pressure chamber to an intermediate pressure between the suction pressure and the discharge pressure. A scroll fluid device characterized as tfIvIL, which is provided with a conduction hole that communicates the back pressure chamber and the high pressure section. 2. The scroll fluid device according to claim 1, wherein the through hole is provided with a differential pressure control mechanism.
JP4273382A 1982-03-19 1982-03-19 Scroll fluidic device Pending JPS58160580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4273382A JPS58160580A (en) 1982-03-19 1982-03-19 Scroll fluidic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4273382A JPS58160580A (en) 1982-03-19 1982-03-19 Scroll fluidic device

Publications (1)

Publication Number Publication Date
JPS58160580A true JPS58160580A (en) 1983-09-24

Family

ID=12644234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4273382A Pending JPS58160580A (en) 1982-03-19 1982-03-19 Scroll fluidic device

Country Status (1)

Country Link
JP (1) JPS58160580A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596520A (en) * 1983-12-14 1986-06-24 Hitachi, Ltd. Hermetic scroll compressor with pressure differential control means for a back-pressure chamber
US4669962A (en) * 1984-08-22 1987-06-02 Hitachi, Ltd. Scroll compressor with pressure differential maintained for supplying oil
JPH01227888A (en) * 1988-03-04 1989-09-12 Matsushita Refrig Co Ltd Scroll type compressor
JPH01253581A (en) * 1988-04-01 1989-10-09 Matsushita Refrig Co Ltd Scroll type compressor
JPH0227750U (en) * 1988-08-12 1990-02-22
US5263822A (en) * 1989-10-31 1993-11-23 Matsushita Electric Industrial Co., Ltd. Scroll compressor with lubrication passages to the main bearing, revolving bearing, back-pressure chamber and compression chambers
FR2787523A1 (en) * 1998-12-16 2000-06-23 Tecumseh Products Co Spiral compressor for fluid pressure regulation has valve linked to two fluid sources and actuated by pressure of first source to maintain winding parts of spiral in controlled sealed axial contact
US6086342A (en) * 1997-08-21 2000-07-11 Tecumseh Products Company Intermediate pressure regulating valve for a scroll machine
US6616431B2 (en) * 2001-02-28 2003-09-09 Sanden Corporation Scroll-type compressors
EP1199474A3 (en) * 2000-10-16 2003-11-12 Copeland Corporation Scroll compressor
US7326039B2 (en) * 2004-11-11 2008-02-05 Lg Electronics Inc. Apparatus for varying capacity of scroll compressor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596520A (en) * 1983-12-14 1986-06-24 Hitachi, Ltd. Hermetic scroll compressor with pressure differential control means for a back-pressure chamber
US4669962A (en) * 1984-08-22 1987-06-02 Hitachi, Ltd. Scroll compressor with pressure differential maintained for supplying oil
JPH01227888A (en) * 1988-03-04 1989-09-12 Matsushita Refrig Co Ltd Scroll type compressor
JPH01253581A (en) * 1988-04-01 1989-10-09 Matsushita Refrig Co Ltd Scroll type compressor
JPH0227750U (en) * 1988-08-12 1990-02-22
US5263822A (en) * 1989-10-31 1993-11-23 Matsushita Electric Industrial Co., Ltd. Scroll compressor with lubrication passages to the main bearing, revolving bearing, back-pressure chamber and compression chambers
US6086342A (en) * 1997-08-21 2000-07-11 Tecumseh Products Company Intermediate pressure regulating valve for a scroll machine
FR2787523A1 (en) * 1998-12-16 2000-06-23 Tecumseh Products Co Spiral compressor for fluid pressure regulation has valve linked to two fluid sources and actuated by pressure of first source to maintain winding parts of spiral in controlled sealed axial contact
US6168404B1 (en) 1998-12-16 2001-01-02 Tecumseh Products Company Scroll compressor having axial compliance valve
EP1199474A3 (en) * 2000-10-16 2003-11-12 Copeland Corporation Scroll compressor
AU776633B2 (en) * 2000-10-16 2004-09-16 Emerson Climate Technologies, Inc. Dual volume-ratio scroll machine
US6616431B2 (en) * 2001-02-28 2003-09-09 Sanden Corporation Scroll-type compressors
US7326039B2 (en) * 2004-11-11 2008-02-05 Lg Electronics Inc. Apparatus for varying capacity of scroll compressor
CN100455810C (en) * 2004-11-11 2009-01-28 Lg电子株式会社 Apparatus for varying capacity of scroll compressor

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