JP2010275931A - オイルフリースクリュー圧縮機 - Google Patents
オイルフリースクリュー圧縮機 Download PDFInfo
- Publication number
- JP2010275931A JP2010275931A JP2009129389A JP2009129389A JP2010275931A JP 2010275931 A JP2010275931 A JP 2010275931A JP 2009129389 A JP2009129389 A JP 2009129389A JP 2009129389 A JP2009129389 A JP 2009129389A JP 2010275931 A JP2010275931 A JP 2010275931A
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- Prior art keywords
- rotors
- rotor
- oil
- casing
- screw compressor
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- 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.)
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- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/086—Carter
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- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement
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- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
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- 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
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
-
- 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
- F04C29/06—Silencing
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
-
- 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
- F04C2250/102—Geometry of the inlet or outlet of the outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
【解決手段】オイルフリースクリュー圧縮機は、複数のねじれた歯が形成された1対の雄スクリューロータ1および雌スクリューロータ2と、これら両ロータを収容し吸入ポートと吐出ポート4とが形成されたケーシング3と、両ロータの両軸端部を回転可能に支持しケーシングに保持された軸受11〜14を備える。両ロータの回転に伴い両ロータとケーシングとにより形成される圧縮作動空間の容量が略ゼロとなるタイミングにおいて吐出ポートと繋がる溝6を、ケーシングの吐出ポートに隣接して設ける。
【選択図】図1
Description
Claims (4)
- 複数のねじれた歯が形成された1対の雄スクリューロータおよび雌スクリューロータと、これら両ロータを収容し吸入ポートと吐出ポートとが形成されたケーシングと、前記両ロータの両軸端部を回転可能に支持しケーシングに保持された軸受と、前記両ロータの一方の軸端部に取付けられ両ロータを非接触で同期回転させるタイミングギヤと、前記各軸受と前記ロータの歯との間に配置され、ロータの噛み合い部に油が侵入するのを防止する軸封装置とを備えるオイルフリースクリュー圧縮機において、
前記両ロータの回転に伴い両ロータとケーシングとにより形成される圧縮作動空間の容量がほぼゼロとなるタイミングにおいて吐出ポートと繋がる溝を、前記ケーシングの吐出ポートに隣接して設けたことを特徴とするオイルフリースクリュー圧縮機。 - 前記溝は、前記雌ロータの歯底円と雄ロータの歯先円との交じわる位置近傍から、両ロータの中心を結ぶ線まで延びていることを特徴とする請求項1に記載のオイルフリースクリュー圧縮機。
- 前記溝は、前記雄ロータの歯先部から外方に延びており、その幅が軸方向深さよりも大きいことを特徴とする請求項1または2に記載のオイルフリースクリュー圧縮機。
- 前記溝を切削加工で形成して、吐出側から吸込み側への漏れを防止したことを特徴とする請求項1ないし3のいずれか1項に記載のオイルフリースクリュー圧縮機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009129389A JP5422260B2 (ja) | 2009-05-28 | 2009-05-28 | オイルフリースクリュー圧縮機 |
CN2010101855418A CN101900119B (zh) | 2009-05-28 | 2010-05-19 | 无油螺杆压缩机 |
EP10164131.4A EP2264319B1 (en) | 2009-05-28 | 2010-05-27 | Oil free screw compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009129389A JP5422260B2 (ja) | 2009-05-28 | 2009-05-28 | オイルフリースクリュー圧縮機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010275931A true JP2010275931A (ja) | 2010-12-09 |
JP5422260B2 JP5422260B2 (ja) | 2014-02-19 |
Family
ID=42315405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009129389A Active JP5422260B2 (ja) | 2009-05-28 | 2009-05-28 | オイルフリースクリュー圧縮機 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2264319B1 (ja) |
JP (1) | JP5422260B2 (ja) |
CN (1) | CN101900119B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107208640A (zh) * | 2015-01-15 | 2017-09-26 | 阿特拉斯·科普柯空气动力股份有限公司 | 喷油真空泵元件 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102352843A (zh) * | 2011-09-26 | 2012-02-15 | 江西隆恒科技有限公司 | 一种无油双螺杆压缩机 |
DE102012009103A1 (de) * | 2012-05-08 | 2013-11-14 | Ralf Steffens | Spindelverdichter |
JP6184837B2 (ja) * | 2013-10-30 | 2017-08-23 | 株式会社日立産機システム | スクリュー圧縮機 |
CN112780551A (zh) * | 2021-02-26 | 2021-05-11 | 珠海格力电器股份有限公司 | 转子组件、压缩机和空调 |
CN116255335A (zh) * | 2023-03-27 | 2023-06-13 | 英格索兰技术研发(上海)有限公司 | 真空泵 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58131388A (ja) * | 1982-01-29 | 1983-08-05 | Hitachi Ltd | スクリユ−圧縮機 |
JPS6165087A (ja) * | 1984-09-05 | 1986-04-03 | Hitachi Ltd | オイルフリ−スクリユ−真空ポンプ |
JPS6336083A (ja) * | 1986-07-29 | 1988-02-16 | Mayekawa Mfg Co Ltd | スクリユ−式圧縮機の吐出ポ−ト部の圧力緩和装置 |
JPH0447189U (ja) * | 1990-08-28 | 1992-04-22 | ||
JPH05312174A (ja) * | 1992-05-11 | 1993-11-22 | Hitachi Ltd | スクリュー真空ポンプ |
JPH07247990A (ja) * | 1994-03-09 | 1995-09-26 | Ebara Corp | 分流ポート付スクリュー流体機械 |
JPH09291891A (ja) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | スクリュー圧縮機 |
JPH10213085A (ja) * | 1997-01-28 | 1998-08-11 | Kobe Steel Ltd | スクリュ圧縮機およびそのケーシングの鋳造方法 |
JP2002013494A (ja) * | 2000-06-29 | 2002-01-18 | Tochigi Fuji Ind Co Ltd | 流体機械 |
JP2008082273A (ja) * | 2006-09-28 | 2008-04-10 | Hitachi Industrial Equipment Systems Co Ltd | スクリュー圧縮機 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB282752A (en) | 1926-12-30 | 1928-05-31 | Josef Kozousek | Improvements in rotary machines for compressing and conveying liquids |
US2578196A (en) * | 1946-11-30 | 1951-12-11 | Imo Industri Ab | Screw compressor |
US3622256A (en) | 1969-10-14 | 1971-11-23 | Alexandr Ivanovich Borisoglebs | Screw-rotor machine |
US4560333A (en) * | 1984-02-07 | 1985-12-24 | Hitachi, Ltd. | Screw compressor |
JPS6345488A (ja) | 1986-08-11 | 1988-02-26 | Kobe Steel Ltd | オイルフリ−スクリユ圧縮機 |
JPH04252887A (ja) * | 1991-01-24 | 1992-09-08 | Hitachi Ltd | オイルフリースクリュー圧縮機装置 |
JPH05302582A (ja) * | 1992-04-24 | 1993-11-16 | Hitachi Ltd | 給油式スクリュー圧縮機 |
JP2008297944A (ja) * | 2007-05-30 | 2008-12-11 | Hitachi Industrial Equipment Systems Co Ltd | スクリュー圧縮機 |
-
2009
- 2009-05-28 JP JP2009129389A patent/JP5422260B2/ja active Active
-
2010
- 2010-05-19 CN CN2010101855418A patent/CN101900119B/zh active Active
- 2010-05-27 EP EP10164131.4A patent/EP2264319B1/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58131388A (ja) * | 1982-01-29 | 1983-08-05 | Hitachi Ltd | スクリユ−圧縮機 |
JPS6165087A (ja) * | 1984-09-05 | 1986-04-03 | Hitachi Ltd | オイルフリ−スクリユ−真空ポンプ |
JPS6336083A (ja) * | 1986-07-29 | 1988-02-16 | Mayekawa Mfg Co Ltd | スクリユ−式圧縮機の吐出ポ−ト部の圧力緩和装置 |
JPH0447189U (ja) * | 1990-08-28 | 1992-04-22 | ||
JPH05312174A (ja) * | 1992-05-11 | 1993-11-22 | Hitachi Ltd | スクリュー真空ポンプ |
JPH07247990A (ja) * | 1994-03-09 | 1995-09-26 | Ebara Corp | 分流ポート付スクリュー流体機械 |
JPH09291891A (ja) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | スクリュー圧縮機 |
JPH10213085A (ja) * | 1997-01-28 | 1998-08-11 | Kobe Steel Ltd | スクリュ圧縮機およびそのケーシングの鋳造方法 |
JP2002013494A (ja) * | 2000-06-29 | 2002-01-18 | Tochigi Fuji Ind Co Ltd | 流体機械 |
JP2008082273A (ja) * | 2006-09-28 | 2008-04-10 | Hitachi Industrial Equipment Systems Co Ltd | スクリュー圧縮機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107208640A (zh) * | 2015-01-15 | 2017-09-26 | 阿特拉斯·科普柯空气动力股份有限公司 | 喷油真空泵元件 |
Also Published As
Publication number | Publication date |
---|---|
CN101900119A (zh) | 2010-12-01 |
EP2264319A2 (en) | 2010-12-22 |
JP5422260B2 (ja) | 2014-02-19 |
EP2264319A3 (en) | 2014-05-21 |
EP2264319B1 (en) | 2017-01-11 |
CN101900119B (zh) | 2013-10-30 |
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