JPH0396679A - Scroll type fluid machine - Google Patents
Scroll type fluid machineInfo
- Publication number
- JPH0396679A JPH0396679A JP1232478A JP23247889A JPH0396679A JP H0396679 A JPH0396679 A JP H0396679A JP 1232478 A JP1232478 A JP 1232478A JP 23247889 A JP23247889 A JP 23247889A JP H0396679 A JPH0396679 A JP H0396679A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- scroll
- fluid
- scrolls
- compression chamber
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 37
- 238000007906 compression Methods 0.000 claims abstract description 37
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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
- 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
- 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
- F04C18/0215—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 where only one member is moving
-
- 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
- F04C18/0269—Details concerning the involute wraps
-
- 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
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、王に冷凍装置の圧縮機として使用するスクロ
ール形流体機械に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a scroll-type fluid machine used as a compressor for a refrigeration system.
（従来の技術）
従来、この種スクロール形流体機械は、特開昭６２−１
１８０８２号公報に記載され、かつ、第６図に示したご
とく、密閉ケーシング（Ｃ）の内方上部に、鏡板（Ａ）
の一側平面に渦巻体（Ｂ）を突設して成る第１及び第２
スクロール（Ｓ１）（Ｓ２）をハウジング（Ｈ）を介し
て上下対向状に配設すると共に、前記ケーシング（Ｃ）
の下部側にモータを配設して、該モータから延びる駆動
軸（Ｋ）の上端部に前記第２スクロール（Ｓ２）を公転
駆動可能に連動させている。(Prior art) Conventionally, this type of scroll type fluid machine was disclosed in Japanese Patent Application Laid-Open No. 62-1
As described in Japanese Patent No. 18082 and as shown in FIG.
The first and second spiral bodies (B) are provided protrudingly from one side plane of the
The scrolls (S1) and (S2) are disposed vertically opposite to each other via the housing (H), and the casing (C)
A motor is disposed on the lower side of the scroll, and the second scroll (S2) is linked to the upper end of a drive shaft (K) extending from the motor so as to be able to revolve.
また、以上のスクロール形流体機械では、後述する第４
図で明らかなごとく、前記第１スクロール（Ｓ１）に対
する第２スクロール（Ｓ２）の公転駆動により、これら
両スクロール（Ｓ１）（Ｓ２）の各渦巻体（Ｂ）間に形
成される圧縮室において、吸入、圧縮及び吐出行程が行
われ、前記吸入行程時で流体の吸入開始から駆動軸（Ｋ
）が所定角度回転されたとき、例えば２４０度程度回転
されたとき、前記各渦巻体（Ｂ）の巻終わり側に形成さ
れる吸入路が最大に開口されてその容積が最大となり、
該吸入路に流体が過吸入され、この状態から駆動軸（Ｋ
）が更に回転され、吸入開始から例えば３６０度程度に
まで回転するとき、吸入容積が減少し、一旦最大容積と
なった前記吸入路が閉鎖されるときに、前記過吸入され
た流体の一部が前記吸入路から外部に排出されてしまい
、前記圧縮室に残る流体が圧縮されるようになっている
のである。In addition, in the above scroll type fluid machine, the fourth
As is clear from the figure, in the compression chamber formed between each spiral body (B) of these scrolls (S1) (S2) by the revolution drive of the second scroll (S2) with respect to the first scroll (S1), Suction, compression, and discharge strokes are performed, and during the suction stroke, the drive shaft (K
) is rotated by a predetermined angle, for example, about 240 degrees, the suction passage formed at the winding end side of each spiral body (B) is opened to the maximum and its volume becomes maximum,
Fluid is excessively sucked into the suction passage, and from this state the drive shaft (K
) is further rotated, for example, to about 360 degrees from the start of suction, the suction volume decreases, and when the suction passage, which once reached the maximum volume, is closed, a part of the over-inhaled fluid is removed. is discharged to the outside from the suction passage, and the fluid remaining in the compression chamber is compressed.
（発明が解決しようとする課題）
所で、以上のスクロール形流体機械では、吸入行程で前
記圧縮室内に一旦吸入された流体が、前記吸入路の閉鎖
時に該吸入路から外部に排出されるために、圧縮効率が
悪く、能力を向上できない問題があった。(Problem to be Solved by the Invention) However, in the above scroll type fluid machine, the fluid once sucked into the compression chamber during the suction stroke is discharged to the outside from the suction passage when the suction passage is closed. However, there was a problem that the compression efficiency was poor and the performance could not be improved.
本発明は以上のような問題に鑑みてなしたもので、その
目的は、圧縮室内に過吸入された流体を外部に排出する
ことなく、過吸入状態で流体を圧縮できて、圧縮効率を
高め、かつ、能力を向上させることができるスクロール
形流体機械を提供することにある。The present invention was made in view of the above-mentioned problems, and its purpose is to compress fluid in an over-inhaled state without discharging the over-inhaled fluid into the compression chamber to the outside, thereby increasing compression efficiency. The object of the present invention is to provide a scroll-type fluid machine that can improve performance.
（課題を解決するための手段）
上記目的を達成するために、本発明では、鏡板（２ａ）
（２ｂ）の一側平面に渦巻体（３ａ）（３ｂ）を突設し
た第１及び第２スクロール（４）（５）を備え、第１及
び第２スクロール（４）（５）の少なくとも一方を駆動
軸（７１）に連動させたスクロール形流体機械において
、前記第１及び第２スクロール（４）（５）の各渦巻体
（３ａ）（３ｂ）における巻終わり側の吸入路に、前記
各渦巻体（３ ａ） （３ ｂ）間に形成する圧縮室
（Ｘ）への流体流れを許容し、前記圧縮室（Ｘ）から吸
入側外部への流れを阻止する吸入弁（９）を設けたこと
を特徴とするものである。(Means for Solving the Problem) In order to achieve the above object, in the present invention, the end plate (2a)
(2b) comprises first and second scrolls (4) and (5) with spiral bodies (3a) and (3b) protruding from one side plane; at least one of the first and second scrolls (4) and (5); In the scroll-type fluid machine in which the scroll bodies (3a) and (3b) of the first and second scrolls (4) and (5) are connected to the drive shaft (71), each of the above-mentioned A suction valve (9) is provided that allows fluid to flow into the compression chamber (X) formed between the spiral bodies (3 a) and (3 b) and blocks the flow from the compression chamber (X) to the outside on the suction side. It is characterized by:
（作用）
吸入行程時に、前記圧縮室（Ｘ）内に過吸入された流体
は、前記吸入弁（９）の存在で外部に排出されることが
なく、従って、前記圧縮室（Ｘ）内の吸入流体容積が実
質的に増大されることとなって、圧縮効率が高められ、
かつ、能力が向上される。(Function) During the suction stroke, the fluid over-inhaled into the compression chamber (X) is not discharged to the outside due to the presence of the suction valve (9), and therefore, the fluid in the compression chamber (X) is not discharged to the outside. suction fluid volume is substantially increased, compression efficiency is increased;
In addition, the ability will be improved.
（実施例）
第５図は高圧ドームタイプのスクロール形流体機械を示
しており、密閉ケーシング（１）内の上部に、鏡板（２
ａ）（２ｂ）の一側平面に渦巻体（３ａ）（３ｂ）を突
設して成る第１及び第２スクロール（４）（５）を、そ
れぞれ前記各渦巻体（３ａ）（３ｂ）が互いに噛合する
ように、ハウジング（６）を介して上下対向状に配設す
ると共に、前記ケーシング（１）内の下部側に、駆動軸
（７１）をもつモータ（７）を設ける一方、前記駆動軸
（７１）の上端に設けた偏心軸部（７１ａ）を、前記第
２スクロール（５）の下部中央に突設した筒状ボス部（
５１）に挿嵌させて、前記駆動軸（７１）の回転に伴い
前記第２スクロール（５）を第１スクロール（４）に対
し公転駆動させることにより、これら両スクロール（４
）（５）の各渦巻体（３ａ）（３ｂ））間に形成される
圧縮室（Ｘ）において、流体の吸入、圧縮及び吐出行程
を行うようにしている。(Example) Fig. 5 shows a high-pressure dome type scroll-type fluid machine, in which an end plate (2
a) The first and second scrolls (4) (5) each having a spiral body (3a) (3b) protruding from one side plane of (2b), each said spiral body (3a) (3b) A motor (7) having a drive shaft (71) is provided on the lower side of the casing (1), and is disposed vertically opposite to each other through a housing (6) so as to mesh with each other. An eccentric shaft part (71a) provided at the upper end of the shaft (71) is connected to a cylindrical boss part (71a) protruding from the center of the lower part of the second scroll (5).
51) and rotates the second scroll (5) with respect to the first scroll (4) as the drive shaft (71) rotates.
) (5) In the compression chamber (X) formed between each spiral body (3a) (3b)), suction, compression, and discharge strokes of fluid are performed.
しかして、以上のスクロール形流体機械において、ｆｌ
’ｌ 記両スクロール（４）（５）における各渦巻体（
３ ａ） （３ ｂ）の巻終わり側に形成される吸入
路（８）に、前記圧縮室（Ｘ）への流体流れのみを許容
し、該圧縮室（Ｘ）から吸入側外方への流体流れを阻止
する吸入弁（９）を配設したのである。However, in the above scroll type fluid machine, fl
'l Each spiral in both scrolls (4) and (5) (
3 a) The suction passage (8) formed at the winding end side of (3 b) allows fluid flow only to the compression chamber (X), and from the compression chamber (X) to the outside on the suction side. A suction valve (9) was provided to prevent fluid flow.
具体的には、第１図で詳しく示したごとく、前記第２ス
クロール（５）に設けた渦巻体（３ｂ）の巻終わり端而
に固定される取付部（９１）と、該取付部（９１）から
前記第１スクロール（５）側に設けた渦巻体（３ａ）の
外周壁面に向けて直線状又は湾曲状に延びる弁本体（９
２）とを一体状に備えた吸入弁（９）を形成して、この
吸入弁（９）の取付部（９１）を、前記弁本体（９２）
の先端部が前記第１スクロール（４）の渦巻体（３ａ）
における外周壁面に弾接されるように、第２スクロール
（５）における渦巻体（３ｂ）のを終り端面に固定ピン
（９３）を介して取付け、前記弁本体（９２）で前記吸
入路（８）を開閉させて、前記圧縮室（Ｘ）への流体流
れのみを許容し、該圧縮室（Ｘ）から吸入側外方への流
体の逆流は阻止するようになすのである。Specifically, as shown in detail in FIG. ) extends linearly or curvedly toward the outer peripheral wall surface of the spiral body (3a) provided on the first scroll (5) side.
2), and the mounting portion (91) of this suction valve (9) is attached to the valve body (92).
The tip of the spiral body (3a) of the first scroll (4)
The spiral body (3b) of the second scroll (5) is attached to the terminal end surface via a fixing pin (93) so as to be in elastic contact with the outer peripheral wall surface of the valve body (92). ) is opened and closed to allow fluid flow only to the compression chamber (X) and to prevent back flow of fluid from the compression chamber (X) to the outside on the suction side.
また、前記第１スクロール（４）に対する第２スクロー
ル（５）の公転駆動に伴い吸入行程が終了して、前記吸
入路（８）が閉鎖されるとき、前記吸入弁（９）の弁本
体（９２）が前記各渦巻体（３）間に噛込んｉ．′リす
るのを防止するために、前記７Ｊ，ｌスクロール（４）
における渦巻体（３ａ）の外周壁面に前記弁本体（９２
）を収容する盗み部（９４）を形成する。Further, when the suction stroke is completed and the suction passage (8) is closed due to the revolution drive of the second scroll (5) with respect to the first scroll (4), the valve body of the suction valve (9) ( 92) is caught between each of the spiral bodies (3) i. ' To prevent the above 7J, l scroll (4)
The valve body (92) is attached to the outer peripheral wall of the spiral body (3a) in
) is formed.
更に、前記吸入弁（９）は、第２図′及び第３図で明ら
かにしたごとく、前記両スクロール（４）（５）におけ
る各渦巻体（３ ａ） （３ ｂ）の巻終わり側に形
成される各吸入路（８）（８）にそれぞれ各別に配設す
るのである。Furthermore, as shown in FIG. 2' and FIG. They are arranged separately in each of the suction passages (8) (8) formed.
尚、前記第１スクロール（１４）における渦巻体（３ａ
）の巻終り端部と第２スクロール（５）における渦巻体
（３ｂ）の巻終り中間部との間に形成する吸入路（８）
に設ける吸入弁（９）は、前記第１スクロール（４）に
おける渦巻体（３ａ）の巻終り端而に固定し、前記第２
スクロール（５）における渦巻体（３ｂ）の外周壁面に
盗み部（９４）を形成している。Note that the spiral body (3a) in the first scroll (14)
) and the middle part of the winding end of the spiral body (3b) in the second scroll (5).
The suction valve (9) provided in the first scroll (4) is fixed to the winding end of the spiral body (3a) in the first scroll (4), and
A tapped portion (94) is formed on the outer peripheral wall surface of the spiral body (3b) in the scroll (5).
斯くして、前記各渦巻゛゛″（３）間に形成される各圧
縮室（Ｘ）への吸入開始から前記第２スクロール（５）
を駆動する駆動軸（７１）が所定角度回転されるまでは
、例えば２４０度程度回耘されるまでは、前記各吸入弁
（９）が開動作しており、この開動作で過吸入させるの
である。そして、前記駆動軸（７１）が、吸入開始から
例えば２４０度程度回転されたとき、つまり、第２図の
ように、吸入容積が最大となる状態となったとき、前記
各吸入弁（９）で各吸入路（８）を閉鎖して、前記各圧
縮室（Ｘ）内に過吸入された流体の吸入側外方への逆流
を阻止するようになすのである。また、前記駆動軸（７
１）が更に回転し、吸入開始から例えば３ＥｉＯ度程度
回転し、第３図の状態となったとき、前記各吸入弁（９
）の弁本体（９２）は各盗みｍ（９４）内に収容されて
吸入容積が閉じ切られ、吸入行程が終了するのであって
、過吸入した流体を排出することなく、圧縮行程に移行
するのである。In this way, from the start of suction into each compression chamber (X) formed between each of the spirals (3), the second scroll (5)
Until the drive shaft (71) that drives the intake valve (71) is rotated by a predetermined angle, for example, until it is rotated by about 240 degrees, each of the intake valves (9) is open, and this opening operation causes over-inhalation. be. When the drive shaft (71) is rotated, for example, about 240 degrees from the start of suction, that is, when the suction volume reaches its maximum as shown in FIG. Then, each suction passage (8) is closed to prevent the fluid excessively suctioned into each compression chamber (X) from flowing back to the outside on the suction side. In addition, the drive shaft (7
1) further rotates, for example, by 3 EiO degrees from the start of suction, and when the state shown in Fig. 3 is reached, each of the suction valves (9
The valve body (92) of ) is accommodated in each valve m (94), the suction volume is completely closed, and the suction stroke is completed, and the compression stroke is started without discharging the over-suctioned fluid. It is.
第４図は、縦軸に容積を、横軸に駆動軸（７１）の回転
角度をとったスクロール形流体機械の回転角度に対する
容積変化グラフを示しており、この図から明らかなごと
く、回転角度の変化に伴い前記圧縮室（Ｘ）内において
、吸入、圧縮及び吐出行程がそれぞれ行われるのである
が、斯かる吸入行程時で流体の吸入開始から駆動軸（７
１）が所定角度回転されたとき、例えば２４０度程度回
転されたとき、同図の容積変化を示すグラフがピークに
達して、前記吸入路（８）から流体が前記圧縮室（Ｘ）
内に圧縮容積以上に過吸入され、この状態から更に例え
ば３６０度程度にまで回転されて、前記吸入路（８）が
閉鎖されるとき、従来では、前述したように、前記過吸
入された流体の一部が前記吸入路（８）から外部に排出
されて、過吸入流体より少ない容積が実際の吸入容積と
なるのに対し、本発明では、前記吸入路（８）に吸入弁
（９）が設けられて、この吸入弁（９）で前記過吸入流
体の外部への逆流が阻止されるため、同グラフのピーク
で示した最大吸入容積が吸入容積となり、この過吸入さ
れた流体が前記圧縮室（Ｘ）で圧縮されることとなるた
め、圧縮機の効率を向上できると共に能力が高められる
。FIG. 4 shows a volume change graph with respect to the rotation angle of a scroll-type fluid machine, with the vertical axis representing the volume and the horizontal axis representing the rotation angle of the drive shaft (71).As is clear from this figure, the rotation angle Suction, compression, and discharge strokes are performed in the compression chamber (X) as the
1) is rotated by a predetermined angle, for example, by about 240 degrees, the graph showing the volume change in the figure reaches a peak, and fluid flows from the suction path (8) into the compression chamber (X).
Conventionally, when the suction passage (8) is over-inhaled to a level exceeding the compressed volume and further rotated from this state to, for example, about 360 degrees to close the suction passage (8), as described above, conventionally, the over-inhaled fluid is A part of the fluid is discharged to the outside from the suction passage (8), and a volume smaller than the over-inhaled fluid becomes the actual suction volume.However, in the present invention, a suction valve (9) is provided in the suction passage (8). is provided, and this suction valve (9) prevents the over-inhaled fluid from flowing back to the outside. Therefore, the maximum suction volume indicated by the peak in the graph becomes the suction volume, and this over-inhaled fluid is Since it is compressed in the compression chamber (X), the efficiency of the compressor can be improved and the capacity can be increased.
以上の実施例においては、前記吸入弁（９）の弁本体（
９２）を収容するための盗み部（９４）を第１及び第２
スクロール（４）（５）に設けた渦巻体（３ａ）（３ｂ
）の外周壁面に形成したが、この盗み部（９４）は前記
弁本体（９２）を固定する第２及び第１スクロール（５
）（４）の渦巻体（３ ｂ） （３ ａ）の巻終り側
内周壁面に形成してもよく、また、内周壁面と外周壁面
との両者に形成することも可能である。In the above embodiment, the valve body (
92) for accommodating the first and second parts (94).
Spiral body (3a) (3b) provided on scroll (4) (5)
) is formed on the outer circumferential wall surface of the valve body (92), but this tapped portion (94) is formed on the outer peripheral wall surface of the second and first scrolls (5) that fix the valve body (92).
) (4) The spiral body (3 b) may be formed on the inner circumferential wall surface on the winding end side of (3 a), or may be formed on both the inner circumferential wall surface and the outer circumferential wall surface.
第５図のスクロール形流体機械は、前記第１スクロール
（４）に、前記吸入路（８）に開口する吸入管（１０）
を接続すると共に、前記ケーシング（１）における第１
スクロール（４）の上部側空間から前記モータ（７）の
下部側空間へと延びる第１吐出管（１１）を接続する一
方、前記ケーシング（１）におけるハウジング（６）と
モータ（７）との間に第２吐出管（１２）を接続して、
前記第１スクロール（４）の上部中央に設けた吐出孔（
１３）から吐出される圧縮ガスを、前記第１吐出管（１
１）を介して前記モータ（７）の下部側空間へと導き、
このモータ（７）の冷却を行いながら、前記第２吐出管
（１２）から外部に吐出するようにしている。また、第
５図の実施例では、前記駆動軸（７１）の上部側に設け
た偏心軸部（７ １ ａ）を前記第２スクロール（５）
に連動連結するようにしたが、前記駆動軸（７１）に前
記両スクロール（４）（５）を連動させて、これら各ス
クロール（４）（５）を回動させるようにしてもよい。The scroll type fluid machine shown in FIG. 5 includes a suction pipe (10) that opens to the suction passage (8) in the first scroll (4).
and the first in the casing (1).
While connecting the first discharge pipe (11) extending from the upper space of the scroll (4) to the lower space of the motor (7), the connection between the housing (6) and the motor (7) in the casing (1) is connected. A second discharge pipe (12) is connected in between,
A discharge hole (
The compressed gas discharged from the first discharge pipe (13) is
1) to the lower side space of the motor (7),
While cooling the motor (7), the motor (7) is discharged to the outside from the second discharge pipe (12). Further, in the embodiment shown in FIG. 5, the eccentric shaft portion (7 1 a) provided on the upper side of the drive shaft (71) is connected to the second scroll (5).
Although the scrolls (4) and (5) are linked to the drive shaft (71), the scrolls (4) and (5) may be rotated.
（発明の効果）
以上説明したように、本発明のスクロール形流体機械で
は、第１、第２スクロール（４）（５）における各渦巻
体（３ ａ） （３ ｂ）の巻終わり側に設ける吸入
路（８）に、前記各渦巻体（３ａ）（３ｂ）間に形成さ
れる圧縮室（Ｘ）への流体流れを許容し、該圧縮室（Ｘ
）から吸入側外部への流体流れを阻止する吸入弁（９）
を設けたから、前記圧縮室（Ｘ）内に過吸入された流体
が逆流して外部に排出されることがないから、圧縮機の
効率を向上できると共に吸入容積を実質的に増大できる
から、それだけ能力を向上させ得るに至ったのである。(Effects of the Invention) As explained above, in the scroll-type fluid machine of the present invention, the coils are provided at the winding end side of each spiral body (3a) (3b) in the first and second scrolls (4) and (5). The suction path (8) allows fluid flow to the compression chamber (X) formed between the spiral bodies (3a) and (3b), and the compression chamber (X)
) to the outside of the suction side (9)
Because of this provision, the fluid excessively sucked into the compression chamber (X) will not flow back and be discharged to the outside, so the efficiency of the compressor can be improved and the suction volume can be substantially increased. I was able to improve my abilities.
【図面の簡単な説明】
第１図は本発明にかかるスクロール形流体機械の要部を
示す平面図、第２図及び第３図は吸入弁の作用状態を示
す平面図、第４図は同流体機機械の容積変化を示すグラ
フ、第５図は同流体機械の全体構造を示す縦断面図、第
６図は従来例を示す断面図である。
（２ａ）（２ｂ）●●●●●鏡板
（３ ａ） （３ ｂ）●●●●●渦巻体（４）●●
●●●第１スクロール
（５）●●●●●第２スクロール
（７１）●●●●駆動軸
（８）●●●●●吸入路
（９）●●●●●吸入弁
（Ｘ）●●●●●圧縮室[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a plan view showing the main parts of a scroll-type fluid machine according to the present invention, Figs. 2 and 3 are plan views showing the operating state of the suction valve, and Fig. 4 is the same. FIG. 5 is a longitudinal sectional view showing the overall structure of the fluid machine; FIG. 6 is a sectional view showing a conventional example. (2a) (2b)●●●●● End plate (3 a) (3 b)●●●●● Spiral body (4)●●
●●●First scroll (5)●●●●●Second scroll (71)●●●●Drive shaft (8)●●●●●Suction path (9)●●●●●Suction valve (X)● ●●●●Compression chamber
Claims (1)
（３ｂ）を突設した第１及び第２スクロール（４）（５
）を備え、第１及び第２スクロール（４）（５）の少な
くとも一方を駆動軸（７１）に連動させたスクロール形
流体機械であって、前記第１及び第２スクロール（４）
（５）の各渦巻体（３ａ）（３ｂ）における巻終わり側
の吸入路に、前記各渦巻体（３ａ）（３ｂ）間に形成す
る圧縮室（Ｘ）への流体流れを許容し、前記圧縮室（Ｘ
）から吸入側外部への流れを阻止する吸入弁（９）を設
けたことを特徴とするスクロール形流体機械。1) Spiral body (3a) on one side plane of end plate (2a) (2b)
(3b) protruding from the first and second scrolls (4) (5)
), in which at least one of the first and second scrolls (4) and (5) is linked to a drive shaft (71), the first and second scrolls (4)
(5) Allow fluid flow to the compression chamber (X) formed between each of the spiral bodies (3a) and (3b) in the suction passage on the winding end side of each of the spiral bodies (3a and 3b), and Compression chamber (X
) A scroll-type fluid machine characterized by being provided with a suction valve (9) that prevents flow from the suction side to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232478A JPH0396679A (en) | 1989-09-07 | 1989-09-07 | Scroll type fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232478A JPH0396679A (en) | 1989-09-07 | 1989-09-07 | Scroll type fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0396679A true JPH0396679A (en) | 1991-04-22 |
Family
ID=16939934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1232478A Pending JPH0396679A (en) | 1989-09-07 | 1989-09-07 | Scroll type fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0396679A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0583386U (en) * | 1992-04-20 | 1993-11-12 | トキコ株式会社 | Scroll type fluid machinery |
| US5496160A (en) * | 1995-07-03 | 1996-03-05 | Tecumseh Products Company | Scroll compressor having a suction check valve |
| GB2350157A (en) * | 1999-05-10 | 2000-11-22 | Scroll Tech | Minimising oil leakage during reverse running of a scroll compressor |
| US20170241420A1 (en) * | 2014-10-27 | 2017-08-24 | Danfoss Commercial Compressors S.A. | A scroll compressor provided with an orbiting guiding portion for improving the filing of the compression chambers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110884A (en) * | 1982-12-17 | 1984-06-26 | Hitachi Ltd | Scroll compressor |
| JPS62182485A (en) * | 1986-02-03 | 1987-08-10 | Matsushita Refrig Co | Scroll type compressor |
-
1989
- 1989-09-07 JP JP1232478A patent/JPH0396679A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110884A (en) * | 1982-12-17 | 1984-06-26 | Hitachi Ltd | Scroll compressor |
| JPS62182485A (en) * | 1986-02-03 | 1987-08-10 | Matsushita Refrig Co | Scroll type compressor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0583386U (en) * | 1992-04-20 | 1993-11-12 | トキコ株式会社 | Scroll type fluid machinery |
| US5496160A (en) * | 1995-07-03 | 1996-03-05 | Tecumseh Products Company | Scroll compressor having a suction check valve |
| GB2350157A (en) * | 1999-05-10 | 2000-11-22 | Scroll Tech | Minimising oil leakage during reverse running of a scroll compressor |
| US6186753B1 (en) | 1999-05-10 | 2001-02-13 | Scroll Technologies | Apparatus for minimizing oil leakage during reverse running of a scroll compressor |
| GB2350157B (en) * | 1999-05-10 | 2003-08-27 | Scroll Tech | Apparatus for minimizing oil leakage during reverse running of a scroll compressor |
| US20170241420A1 (en) * | 2014-10-27 | 2017-08-24 | Danfoss Commercial Compressors S.A. | A scroll compressor provided with an orbiting guiding portion for improving the filing of the compression chambers |
| US10605244B2 (en) * | 2014-10-27 | 2020-03-31 | Danfoss Commercial Compressors S.A. | Scroll compressor provided with an orbiting guiding portion for improving the filling of the compression chambers |
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