JPS5848792A - Screw compressor - Google Patents
Screw compressorInfo
- Publication number
- JPS5848792A JPS5848792A JP15662082A JP15662082A JPS5848792A JP S5848792 A JPS5848792 A JP S5848792A JP 15662082 A JP15662082 A JP 15662082A JP 15662082 A JP15662082 A JP 15662082A JP S5848792 A JPS5848792 A JP S5848792A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- face
- film layer
- screw compressor
- casing
- 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
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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary-Type Compressors (AREA)
Abstract
Description
【発明の詳細な説明】 本発明はスクリエー圧縮機の改良に関するものである。[Detailed description of the invention] The present invention relates to improvements in screier compressors.
従来のスクリュー圧縮機は第1図に示すように、吸入口
6と吐出ロアを有するケーシング1内に互にかみ合う雌
ロータ2aと雄ロータ2bを収納すると共に、前記吐出
ロア偶にロータ2 ’ * 2 bに接金するスライド
弁3を収納し、このスライド弁3を・、ピストンロッド
4を介してピストン5に接続した構造からなる。As shown in FIG. 1, a conventional screw compressor houses a female rotor 2a and a male rotor 2b that engage with each other in a casing 1 having an inlet 6 and a discharge lower, and a rotor 2'* attached to the discharge lower. 2b is housed in a slide valve 3, which is connected to a piston 5 via a piston rod 4.
このような構造では、ロータ2a l 21)は常に吐
出ロア側から吸入6側へ押圧され、かつレシプ覧圧一様
のようにピストンリングによりガスシールする代りに、
すべての個所を薄い油膜によシシールしている。したが
って各部のすき間をできるだけ小さくする必要がある。In such a structure, the rotor 2a l 21) is always pressed from the discharge lower side to the suction 6 side, and instead of gas sealing with a piston ring as in the case of uniform recipe pressure,
All parts are sealed with a thin oil film. Therefore, it is necessary to make the gaps between each part as small as possible.
しかしその各種すき間のうち、ロータの軸方向端面のす
き間は組立の際に調整できるので、組立作業のばらつき
が性能に大きく影響することになる。このため従来のス
クリエー圧縮機では性能の向上をはかるため、組立の際
にロータ端面のすき間を一般的に小さくしていた。However, among the various gaps, the gap between the axial end faces of the rotor can be adjusted during assembly, so variations in assembly work greatly affect performance. For this reason, in order to improve the performance of conventional screier compressors, the gap between the rotor end faces was generally reduced during assembly.
とζろがこのように構成すれば、圧縮機の性能向上に効
果けあるが、すき間が小さいから異物をかみ込むばかり
でなく、熱膨張のアンバランスなどによりロータ端面に
かじり損傷を先する恐れがある。If the rotor and rotor are configured in this way, it will be effective in improving the performance of the compressor, but since the gap is small, not only will foreign matter get caught, but there is also the risk of galling damage to the rotor end face due to thermal expansion imbalance. There is.
本発明は上記欠点を解消するため罠なされたもので、ロ
ータを内蔵するスクリュー圧縮機において、前記ロータ
の軸方向端面に初期なじみ性の高い皮膜層を形成したこ
とを特徴とするものである以下本発明の実施例を図面を
参照して説明する第2図において、1はケーシング、2
&12t’はケーシング1内に互にかみ合い、かつ回転
自在に収納さ、れた雌ロータおよび雄ロータで、このロ
ータ2aw2bの軸方向端面8の表面には初期なじみ性
の高い皮膜層9が形成されている。この皮膜層9は例え
ばバビットメタルなどの軟質金属あるいはカーボングラ
ファイトのような油滑性の良好な物質、あるいは4ふっ
化エチレンのような摩擦係数の小さい物質により形成さ
れている0その他の構造は第1図に示す従来例と同一で
あるから図面および説明を省略した。The present invention has been made to solve the above-mentioned drawbacks, and is a screw compressor having a built-in rotor, characterized in that a film layer with high initial conformability is formed on the axial end face of the rotor. In FIG. 2, which describes an embodiment of the present invention with reference to the drawings, 1 is a casing;
&12t' are a female rotor and a male rotor that are interlocked with each other and rotatably housed in the casing 1, and a film layer 9 with high initial conformability is formed on the surface of the axial end face 8 of the rotor 2aw2b. ing. This film layer 9 is formed of a soft metal such as Babbitt metal, a material with good oil lubricity such as carbon graphite, or a material with a small coefficient of friction such as tetrafluoroethylene. Since it is the same as the conventional example shown in the figure, the drawing and explanation are omitted.
上記のようにロータの軸方向端面8に初期なじみ性の高
い皮膜層9を形成すれば、万一、ロータ端面8がケーシ
ング1の内面に接触しても、ロータ端面8にかじり損傷
を生ずる恐れがないばかシでなく、ロータ端面とケーシ
ングとの閘のすき間を最小限に組立てることが可能であ
る。If the film layer 9 with high initial conformability is formed on the axial end face 8 of the rotor as described above, even if the rotor end face 8 comes into contact with the inner surface of the casing 1, there is a risk of galling damage to the rotor end face 8. It is possible to assemble the lock with the minimum gap between the rotor end face and the casing without having to worry about any problems.
以上説明したように本発明によれば、ロータ端面のかじ
シ損傷を防止して信頼性を向上させることができる0As explained above, according to the present invention, it is possible to prevent damage to the rotor end surface and improve reliability.
第1図は従来のスクリュー圧縮機の断面図、第2図は本
発明のスクリュー圧縮機の一実施例を示す要部断面図で
ある。
2&e2b・・・ロータ 8・・・軸方向端[9・・・
皮膜層FIG. 1 is a sectional view of a conventional screw compressor, and FIG. 2 is a sectional view of essential parts showing an embodiment of the screw compressor of the present invention. 2 & e2b... Rotor 8... Axial end [9...
film layer
Claims (1)
前記ロータの軸方向端面に初期なじみ性の高い皮膜層を
形成したことを特徴とするスクリュー圧縮機。 26 なじみの高い皮膜層が、バビットメタルである
特許請求の範囲第1項記載のスクリュー圧縮機。 3、なじみ性の高い皮膜層が、カーボングラファイトで
ある特許請求の範囲第1項記載のスクリュー圧縮機。 4、なじみ性の高い皮膜層が、4ふ9化エチレンである
特許請求の範囲第1項記載のスクリュー圧縮機。[Claims] 1. In a screw compressor with a built-in rotor,
A screw compressor characterized in that a film layer having high initial conformability is formed on an axial end face of the rotor. 26. The screw compressor according to claim 1, wherein the highly compatible coating layer is Babbitt metal. 3. The screw compressor according to claim 1, wherein the coating layer with high conformability is carbon graphite. 4. The screw compressor according to claim 1, wherein the film layer having high conformability is made of 4-fluorinated ethylene.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15662082A JPS5848792A (en) | 1982-09-10 | 1982-09-10 | Screw compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15662082A JPS5848792A (en) | 1982-09-10 | 1982-09-10 | Screw compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5848792A true JPS5848792A (en) | 1983-03-22 |
Family
ID=15631691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15662082A Pending JPS5848792A (en) | 1982-09-10 | 1982-09-10 | Screw compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848792A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59196989A (en) * | 1983-04-23 | 1984-11-08 | Anretsuto:Kk | Roots blower |
JPS639694A (en) * | 1986-07-01 | 1988-01-16 | Hitachi Ltd | Screw compressor |
US6739851B1 (en) * | 2002-12-30 | 2004-05-25 | Carrier Corporation | Coated end wall and method of manufacture |
US7153111B2 (en) * | 1999-11-17 | 2006-12-26 | Carrier Corporation | Screw machine |
US8079144B2 (en) | 2002-12-30 | 2011-12-20 | Carrier Corporation | Method of manufacture, remanufacture, or repair of a compressor |
-
1982
- 1982-09-10 JP JP15662082A patent/JPS5848792A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59196989A (en) * | 1983-04-23 | 1984-11-08 | Anretsuto:Kk | Roots blower |
JPS639694A (en) * | 1986-07-01 | 1988-01-16 | Hitachi Ltd | Screw compressor |
JPH0762477B2 (en) * | 1986-07-01 | 1995-07-05 | 株式会社日立製作所 | Screen compressor |
US7153111B2 (en) * | 1999-11-17 | 2006-12-26 | Carrier Corporation | Screw machine |
EP1873398A2 (en) * | 2000-06-30 | 2008-01-02 | Carrier Corporation | Screw machine |
EP1873398A3 (en) * | 2000-06-30 | 2010-09-15 | Carrier Corporation | Screw machine |
EP1887185A3 (en) * | 2000-06-30 | 2011-02-23 | Carrier Corporation | Screw machine |
EP1878870A3 (en) * | 2000-06-30 | 2011-04-27 | Carrier Corporation | Screw machine |
US6739851B1 (en) * | 2002-12-30 | 2004-05-25 | Carrier Corporation | Coated end wall and method of manufacture |
US8079144B2 (en) | 2002-12-30 | 2011-12-20 | Carrier Corporation | Method of manufacture, remanufacture, or repair of a compressor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1205438A (en) | Oil-free rotary displacement compressor | |
US6142755A (en) | Scroll compressor and method of manufacturing same | |
US6428014B2 (en) | Piston sealing ring assembly | |
US5478219A (en) | Lightweight scroll element and method of making | |
CA2094591A1 (en) | Sear rotor | |
JPS5848792A (en) | Screw compressor | |
US4526387A (en) | Rotatable shaft seals | |
JPS6027834Y2 (en) | hermetic compressor | |
US4388040A (en) | Rotary fluid pump | |
JPS61152990A (en) | Screw vacuum pump | |
US6595763B2 (en) | Screw compressor with reduced leak path | |
US6079963A (en) | Displacement type compressor and method of forming coating film | |
JPS6211355Y2 (en) | ||
GB2113308A (en) | Rotary positive-displacement fluid-machine | |
JPH051685A (en) | Screw compressor | |
JPS5857564A (en) | Shaft sealing device for supercharger | |
JPH02301694A (en) | Dry vacuum pump | |
JP3889580B2 (en) | Piston seal structure of oilless reciprocating compressor | |
JPH0222530Y2 (en) | ||
JPH0821388A (en) | Oilless type rotary pump | |
JP2550917Y2 (en) | Wear ring with organic material lining for centrifugal pump | |
JPH04203565A (en) | Labyrinth seal device for rotary machine | |
JPS6345588Y2 (en) | ||
JP3415266B2 (en) | Rotary shaft seal | |
JP2009133231A (en) | Oil-free type vacuum pump |