JPS62199988A - Rotary type compressor - Google Patents
Rotary type compressorInfo
- Publication number
- JPS62199988A JPS62199988A JP4295086A JP4295086A JPS62199988A JP S62199988 A JPS62199988 A JP S62199988A JP 4295086 A JP4295086 A JP 4295086A JP 4295086 A JP4295086 A JP 4295086A JP S62199988 A JPS62199988 A JP S62199988A
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary plate
- cylinder
- bearing
- discharge port
- rotary compressor
- 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
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 6
- 239000002699 waste material Substances 0.000 description 5
- 230000004323 axial length Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- 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)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、ロータリ形圧縮機に係り、特に。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to rotary compressors, and more particularly to rotary compressors.
構造の複雑化を招くことなく成績係数を向上させること
ができるようにしたロータリ形圧縮癲に関する。This invention relates to a rotary type compression screw that can improve the coefficient of performance without complicating the structure.
（従来の技術）
周知のように、空気調和機や冷蔵庫ではガス圧縮機を必
要とする。このような用途のガス圧縮機としては、＃＃
を選的に小形化が容易なａ−クリ形圧縮機が使用されて
いる。(Prior Art) As is well known, air conditioners and refrigerators require gas compressors. As a gas compressor for this kind of use, ##
An a-crystal type compressor is used because it is easy to selectively downsize the compressor.
ロータリ形圧縮曙は１通常、第２図から第４図に示すよ
うに構成されている。すなわち、圧力容器１と、この圧
力容器１内に収容され壁部に吸気口２を有したシリンダ
３と、このシリンダ３の両端開口部を閉塞するように装
着され上記シリンダ３とで圧縮室４を形成する主軸受５
および副軸受６と、上記主軸受５および副軸受６に回転
自在に支持されるとともにシリンダ３で囲まれた部分に
偏心軸部７を有した回転軸８と、上記偏心軸部７の外周
に装着されたロータ９と、シリンダ３の壁を貫通して先
端部がロータ９の外周面に摺接し。A rotary compression device is typically constructed as shown in FIGS. 2-4. That is, a compression chamber 4 is formed by a pressure vessel 1, a cylinder 3 housed in the pressure vessel 1 and having an intake port 2 on the wall, and the cylinder 3 installed so as to close both end openings of the cylinder 3. Main bearing 5 forming
and a sub-bearing 6, a rotating shaft 8 which is rotatably supported by the main bearing 5 and sub-bearing 6 and has an eccentric shaft portion 7 in a portion surrounded by the cylinder 3; It penetrates the mounted rotor 9 and the wall of the cylinder 3, and its tip portion slides into contact with the outer peripheral surface of the rotor 9.
ロータ９の動きに連動して摺動するブレード１０と、圧
縮されたガスを圧力容器１内へ吐出する吐出部１１とで
構成されている。そして、吸気口２は吸込み管１２を介
して外部に通じている。また。It is composed of a blade 10 that slides in conjunction with the movement of the rotor 9, and a discharge section 11 that discharges compressed gas into the pressure vessel 1. The intake port 2 communicates with the outside via a suction pipe 12. Also.
吐出部１１は、第４図に示すように、主軸受５の外面側
を削って薄くした薄肉部１３に吐出口１４と、これに連
接する弁座１５とを設け、上記弁座１５を常時閉塞する
ように弁板１６を設けている。As shown in FIG. 4, the discharge section 11 is provided with a discharge port 14 in a thin section 13 made thin by cutting the outer surface of the main bearing 5, and a valve seat 15 connected to the discharge port 14, so that the valve seat 15 is always kept in place. A valve plate 16 is provided to close the valve.
弁板１６は、′ＴＩ端部が弁座１５を閉塞し、基端部が
板ばね１７と一緒に薄肉部１３にリベット１８で止めら
れている。The valve plate 16 has a 'TI end that closes the valve seat 15, and a proximal end that is fixed to the thin wall portion 13 with a rivet 18 together with a leaf spring 17.
しかしながら、上記のように構成された従来のロータリ
形圧縮機にあっては次ぎのような問題があった。すなわ
ち、主軸受５や副軸受６は１通常。However, the conventional rotary compressor configured as described above has the following problems. That is, the number of main bearings 5 and sub bearings 6 is 1 normally.
製作の容易化を図るために焼結材で形成される。It is made of sintered material to facilitate manufacturing.
周知のように、焼結材の改械的強度はそれほど大きくは
ない。このため、薄肉部１３の厚みもそれほど薄くはで
きない。この結果、吐出口１４の軸方向長さを充分短く
することが困難で、吐出口１４部分の無駄容積を小さく
することができない。As is well known, the mechanical strength of sintered materials is not very high. Therefore, the thickness of the thin portion 13 cannot be made very thin. As a result, it is difficult to sufficiently shorten the axial length of the discharge port 14, and it is impossible to reduce the waste volume of the discharge port 14 portion.
このため、圧縮機としての体積効率および圧縮効率が低
く、成績係数を上げることができない問題があった。ま
た、焼結材で形成された主軸受５の薄肉部１３の肉厚を
薄くしていくと、第５図に示すようにある値以下から急
激に表面平坦度が低下する。この結果、ロータ９と摺接
する部分のシール性能が低下する問題もあった。Therefore, the volumetric efficiency and compression efficiency of the compressor were low, and there was a problem that the coefficient of performance could not be increased. Further, as the thickness of the thin wall portion 13 of the main bearing 5 made of sintered material is made thinner, the surface flatness rapidly decreases below a certain value, as shown in FIG. As a result, there was also the problem that the sealing performance of the portion that makes sliding contact with the rotor 9 deteriorates.
（発明が解決しようとする問題点）
何等かの手段で〇−夕との摺接部分の平坦度を充分高い
値に保持した状態で、吐出口部分の無駄容積を減少させ
ない限り成績係数の向上を期待することはできない。(Problem to be solved by the invention) The coefficient of performance cannot be improved unless the waste volume of the discharge port part is reduced while the flatness of the sliding contact part with 〇-〇 is maintained at a sufficiently high value by some means. cannot be expected.
したがって１本発明はＩＮ成の複雑化を招くことなく、
シかもロータとの摺接部分の平坦度を高い値に維持した
状態で成績係数を向上させることができるロータリ形圧
縮機を提供することを目的としている。Therefore, the present invention does not complicate the IN configuration, and
It is an object of the present invention to provide a rotary compressor that can improve the coefficient of performance while maintaining the flatness of the sliding contact portion with the rotor at a high value.
［発明の構成］
（問題点を解決するための手段）
本発明では、シリンダと一方の軸受との間に上記軸受を
構成している材料より高剛性の材料で形成された補助板
を介在させ、この補助板に吐出口および弁座を形成する
ようにしている。[Structure of the Invention] (Means for Solving the Problems) In the present invention, an auxiliary plate made of a material having higher rigidity than the material constituting the bearing is interposed between the cylinder and one of the bearings. A discharge port and a valve seat are formed on this auxiliary plate.
（作用）
補助板を、たとえばばね材等の高剛性材で形成すると、
充分な！ｌＩ減的減反強度性揮させることができるので
、補助板の厚みを充分薄くしても何等支障は生じない。(Function) If the auxiliary plate is made of a highly rigid material such as a spring material,
Enough! Since it is possible to exhibit the lI-decreasing strength, no problem will occur even if the thickness of the auxiliary plate is made sufficiently thin.
また、ロータとの摺接部の平坦度を高い値に保持するこ
とも容易である。したがって、ローラが摺動する部分の
平面度を充分確保した状態で吐出口部分の無駄容積を充
分小さくできる。Furthermore, it is easy to maintain the flatness of the sliding contact portion with the rotor at a high value. Therefore, the waste volume of the discharge port portion can be sufficiently reduced while ensuring sufficient flatness of the portion on which the roller slides.
（実施例） 以下２本発明の実施例を図面を参照しながら説明する。(Example) Two embodiments of the present invention will be described below with reference to the drawings.
第１図は１本発明の一実施例に係るロータリ形圧縮機の
要部だけを示すもので、第４図と同一部分は同一符号で
示しである。したがって重複する部分の詳しい説明は省
略する。FIG. 1 shows only the main parts of a rotary compressor according to an embodiment of the present invention, and the same parts as in FIG. 4 are designated by the same reference numerals. Therefore, detailed explanation of the overlapping parts will be omitted.
この実施例では、シリンダ３の一方の端面に厚さ１．５
〜２．０順のばね材で形成された補助板２１を介して焼
結材製の主軸受５ａを固定している。主軸受５ａの圧縮
ｖ４に対向する部分の一部には孔２２が形成されおり、
補助板２１の上記孔２２に対向する部分に吐出部１１ａ
が形成ξれている。この吐出部１１ａは、放電加工等に
よって補助板２１に、吐出口２３および上記吐出口２３
に連接する弁座２４を形成し、上記弁座２４を弁板１６
の遊端側で閉塞したものとなっている。なお、弁板１６
の基端側は板ばね１７と一緒にリベット１８で補助板２
１に固定されている。In this embodiment, one end surface of the cylinder 3 has a thickness of 1.5 mm.
A main bearing 5a made of sintered material is fixed via an auxiliary plate 21 formed of a spring material in the order of ~2.0. A hole 22 is formed in a part of the main bearing 5a facing the compression v4,
A discharge portion 11a is provided in a portion of the auxiliary plate 21 facing the hole 22.
is formed ξ. This discharge part 11a is formed on the auxiliary plate 21 by electrical discharge machining or the like.
A valve seat 24 is formed which is connected to the valve plate 16, and the valve seat 24 is connected to the valve plate 16.
It is closed on the free end side. In addition, the valve plate 16
The base end of the auxiliary plate 2 is attached with a rivet 18 together with the leaf spring 17.
It is fixed at 1.
このように、シリンダ３と主軸受５ａとの間に補助板２
１を介在させ、この補助板２１に吐出口２３と弁座２４
とを設ける構成であると、ばね材等のように焼結材に比
べてはるかに高剛性の材料で補助板２１を形成すること
ができ、薄肉の補助板２１の使用が可能となり、しかも
ロータ７との摺接部の平坦度を充分高い値に保持できる
。。この結果、主軸受を加工して吐出口や弁座を形成す
る場合に比べて吐出部１１ａにおける無駄容積を充分小
さくできるばかりかシール性能も向上させることができ
る。したがって、シール性能を損なわずに体積効率の向
上化と圧縮効率の向上化とを図れ、成績係数を向上させ
ることができる。In this way, the auxiliary plate 2 is placed between the cylinder 3 and the main bearing 5a.
1, and a discharge port 23 and a valve seat 24 are installed on this auxiliary plate 21.
With this configuration, the auxiliary plate 21 can be formed of a material such as a spring material that has much higher rigidity than sintered material, and it is possible to use a thin auxiliary plate 21. The flatness of the sliding contact portion with 7 can be maintained at a sufficiently high value. . As a result, compared to the case where the main bearing is processed to form the discharge port and the valve seat, not only the waste volume in the discharge portion 11a can be sufficiently reduced, but also the sealing performance can be improved. Therefore, the volumetric efficiency and compression efficiency can be improved without impairing the sealing performance, and the coefficient of performance can be improved.
なお１本発明は、上述した実施例に限定されるものでは
ない。たとえば、補助板を形成する材料としては、ばね
材に限らずセラミック材−を使用してもよい。Note that the present invention is not limited to the embodiments described above. For example, the material for forming the auxiliary plate is not limited to a spring material, but a ceramic material may also be used.
［発明の効果］
以上詳述したように２本発明によれば、シリンダと軸受
との間に補助板を介在させ、この補助板に吐出口および
弁座を設けるようにしているので。[Effects of the Invention] As described in detail above, according to the present invention, an auxiliary plate is interposed between the cylinder and the bearing, and the auxiliary plate is provided with the discharge port and the valve seat.
簡単な構成であるにも拘らず、吐出部における無駄容積
を充分小さくでき、成績係数を向上させることができる
ばかりかシール性能までも向上させることができるロー
タリ形圧縮機を提供できる。Although it has a simple configuration, it is possible to provide a rotary compressor that can sufficiently reduce the waste volume in the discharge section and improve not only the coefficient of performance but also the sealing performance.
第１図は本発明の一実施例に係るロータリ形圧縮機の要
部だけを示す断面図、第２図は従来のロータリ形圧縮機
の横断面図、第３図は同圧縮機の回転軸近傍の断面図、
第４図は同圧縮様の吐出部近傍の断面図、第５図は焼結
材の厚みと平坦度との関係を示す図である。
１・・・圧力容器、３・・・シリンダ、４・・・圧縮至
。
５ａ・・・主軸受、６・・・副軸受、９・・・ロータ、
１１ａ・・・吐出部、１６・・・弁板、２１・・・補助
板、２３・・・吐出０．２４・・・弁座。
出願人代理人 弁理士 鈴江武彦
第５図
第２図
第４図FIG. 1 is a cross-sectional view showing only the main parts of a rotary compressor according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a conventional rotary compressor, and FIG. 3 is a rotating shaft of the same compressor. A cross-sectional view of the vicinity,
FIG. 4 is a cross-sectional view of the vicinity of the discharge part in the same compression mode, and FIG. 5 is a diagram showing the relationship between the thickness and flatness of the sintered material. 1...Pressure vessel, 3...Cylinder, 4...Compression. 5a... Main bearing, 6... Sub bearing, 9... Rotor,
11a...Discharge part, 16...Valve plate, 21...Auxiliary plate, 23...Discharge 0.24...Valve seat. Applicant's agent Patent attorney Takehiko Suzue Figure 5 Figure 2 Figure 4
Claims (3)
の両端開口部に装着されて上記シリンダとで圧縮室を形
成するとともに一方側に吐出口と上記吐出口に連接する
弁座とを位置させた一対の軸受と、これら軸受に回転自
在に支持されるとともに前記シリンダで囲まれた部分に
偏心軸部を有した回転軸と、この回転軸の前記偏心軸部
の回転に連動して前記吸気口から吸込んだガスを圧縮し
て前記吐出口から吐出させる回転圧縮部とを備えたロー
タリ形圧縮機において、前記シリンダと前記軸受の一方
との間に上記軸受を構成している材料より高剛性の材料
で形成された補助板を介在させ、この補助板に前記吐出
口と前記弁座とを設けてなることを特徴とするロータリ
形圧縮機。(1) A cylinder having an intake port on the wall, a compression chamber formed by the cylinder being attached to both end openings of the cylinder, and a discharge port on one side and a valve seat connected to the discharge port. a pair of positioned bearings; a rotating shaft rotatably supported by these bearings and having an eccentric shaft portion in a portion surrounded by the cylinder; In a rotary compressor comprising a rotary compressor that compresses gas taken in from the intake port and discharges it from the discharge port, the material forming the bearing between the cylinder and one of the bearings is A rotary compressor characterized in that an auxiliary plate made of a highly rigid material is interposed, and the auxiliary plate is provided with the discharge port and the valve seat.
ばれた１種で形成されていることを特徴とする特許請求
の範囲第１項記載のロータリ形圧縮機。(2) The rotary compressor according to claim 1, wherein the auxiliary plate is made of one material selected from a spring material and a ceramic material.
とする特許請求の範囲第１項記載のロータリ形圧縮機。(3) The rotary compressor according to claim 1, wherein the bearing is made of a sintered material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295086A JPS62199988A (en) | 1986-02-28 | 1986-02-28 | Rotary type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295086A JPS62199988A (en) | 1986-02-28 | 1986-02-28 | Rotary type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62199988A true JPS62199988A (en) | 1987-09-03 |
Family
ID=12650297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4295086A Pending JPS62199988A (en) | 1986-02-28 | 1986-02-28 | Rotary type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62199988A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676535A (en) * | 1995-11-16 | 1997-10-14 | Carrier Corporation | Enhanced rotary compressor valve port entrance |
| ES2128241A1 (en) * | 1996-11-06 | 1999-05-01 | Carrier Corp | Improved valve port inlet for rotary compressor |
| KR100390784B1 (en) * | 2001-01-31 | 2003-07-10 | 주식회사 엘지이아이 | Hermetic rotary compressor |
| EP3330544A1 (en) * | 2016-11-30 | 2018-06-06 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Compressor |
-
1986
- 1986-02-28 JP JP4295086A patent/JPS62199988A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676535A (en) * | 1995-11-16 | 1997-10-14 | Carrier Corporation | Enhanced rotary compressor valve port entrance |
| CN1086448C (en) * | 1995-11-16 | 2002-06-19 | 运载器有限公司 | Enhanced rotary compressor valve port entrance |
| ES2128241A1 (en) * | 1996-11-06 | 1999-05-01 | Carrier Corp | Improved valve port inlet for rotary compressor |
| KR100390784B1 (en) * | 2001-01-31 | 2003-07-10 | 주식회사 엘지이아이 | Hermetic rotary compressor |
| EP3330544A1 (en) * | 2016-11-30 | 2018-06-06 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Compressor |
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