DE68904275D1 - Mehrstufige roots-vakuumpumpe mit rueckkuehlungsstroemung. - Google Patents
Mehrstufige roots-vakuumpumpe mit rueckkuehlungsstroemung.Info
- Publication number
- DE68904275D1 DE68904275D1 DE8989308590T DE68904275T DE68904275D1 DE 68904275 D1 DE68904275 D1 DE 68904275D1 DE 8989308590 T DE8989308590 T DE 8989308590T DE 68904275 T DE68904275 T DE 68904275T DE 68904275 D1 DE68904275 D1 DE 68904275D1
- Authority
- DE
- Germany
- Prior art keywords
- recooling
- flow
- vacuum pump
- roots vacuum
- stage roots
- 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.)
- Expired - Fee Related
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
- 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
- F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63220496A JP2691168B2 (ja) | 1988-09-05 | 1988-09-05 | 冷却水路を内蔵する逆流冷却式多段ロータリー形真空ポンプ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68904275D1 true DE68904275D1 (de) | 1993-02-18 |
DE68904275T2 DE68904275T2 (de) | 1993-05-06 |
Family
ID=16751964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8989308590T Expired - Lifetime DE68904275T2 (de) | 1988-09-05 | 1989-08-24 | Mehrstufige roots-vakuumpumpe mit rueckkuehlungsstroemung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4995796A (de) |
EP (1) | EP0359423B1 (de) |
JP (1) | JP2691168B2 (de) |
DE (1) | DE68904275T2 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0419385A (ja) * | 1990-05-14 | 1992-01-23 | Anlet Co Ltd | 圧縮ガス流配管内蔵型まゆ型2軸多段式真空ポンプの冷却装置 |
GB9604486D0 (en) * | 1996-03-01 | 1996-05-01 | Boc Group Plc | Improvements in vacuum pumps |
JP2922181B1 (ja) | 1998-01-26 | 1999-07-19 | 株式会社宇野澤組鐵工所 | 粉体捕集機能を有する真空ポンプ装置 |
US6312240B1 (en) * | 1999-05-28 | 2001-11-06 | John F. Weinbrecht | Reflux gas compressor |
JP3758550B2 (ja) | 2001-10-24 | 2006-03-22 | アイシン精機株式会社 | 多段真空ポンプ |
JP4085969B2 (ja) * | 2003-11-27 | 2008-05-14 | 株式会社豊田自動織機 | 電動ルーツ型圧縮機 |
CN100416103C (zh) * | 2004-06-30 | 2008-09-03 | 海巴(巴拿马)鼓风机公司 | 高压罗茨鼓风机 |
JP4732833B2 (ja) * | 2005-08-22 | 2011-07-27 | 樫山工業株式会社 | スクリューロータおよび真空ポンプ |
JP4767625B2 (ja) * | 2005-08-24 | 2011-09-07 | 樫山工業株式会社 | 多段ルーツ式ポンプ |
US20080181803A1 (en) * | 2007-01-26 | 2008-07-31 | Weinbrecht John F | Reflux gas compressor |
CN102472285A (zh) | 2009-08-14 | 2012-05-23 | 株式会社爱发科 | 干泵 |
US20120020824A1 (en) * | 2010-07-20 | 2012-01-26 | Paul Xiubao Huang | Roots supercharger with a shunt pulsation trap |
DE202010015439U1 (de) * | 2010-11-16 | 2012-02-17 | Hugo Vogelsang Maschinenbau Gmbh | Drehkolbenpumpe und Gehäuse-Halbschale für selbige |
KR101173168B1 (ko) * | 2010-11-17 | 2012-08-16 | 데이비드 김 | 다단형 건식 진공펌프 |
KR101286187B1 (ko) * | 2011-11-08 | 2013-07-15 | 데이비드 김 | 다단형 건식 진공펌프 |
CN103104496A (zh) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳科学仪器研制中心有限公司 | 一种真空泵水冷结构 |
US9074524B2 (en) * | 2011-12-09 | 2015-07-07 | Eaton Corporation | Air supply system with two-stage roots blower |
CN102852798B (zh) * | 2012-08-14 | 2015-05-20 | 杭州新安江工业泵有限公司 | 罗茨真空泵冷却系统 |
KR101385954B1 (ko) * | 2012-11-14 | 2014-04-16 | 데이비드 김 | 다단형 건식 진공펌프 |
CN103511282B (zh) * | 2013-10-08 | 2016-03-30 | 杭州新安江工业泵有限公司 | 带转子冷却结构的罗茨泵 |
USD816717S1 (en) | 2014-08-18 | 2018-05-01 | Eaton Corporation | Supercharger housing |
US9683521B2 (en) | 2013-10-31 | 2017-06-20 | Eaton Corporation | Thermal abatement systems |
CN104005954B (zh) * | 2014-06-20 | 2016-06-15 | 淄博景曜真空设备有限公司 | 一种立式罗茨干式真空泵 |
WO2017031807A1 (zh) * | 2015-08-27 | 2017-03-02 | 上海伊莱茨真空技术有限公司 | 一种多驱动腔非共轴真空泵 |
DE202017003212U1 (de) * | 2017-06-17 | 2018-09-18 | Leybold Gmbh | Mehrstufige Wälzkolbenpumpe |
CN107559196B (zh) * | 2017-09-22 | 2018-08-17 | 陕西厚亿节能环保新材料科技有限公司 | 一种高气密型水冷式罗茨风机设备 |
CN108799112B (zh) * | 2018-05-08 | 2019-08-13 | 王麒越 | 一种罗茨真空泵 |
CN110500275B (zh) | 2019-09-23 | 2021-03-16 | 兑通真空技术(上海)有限公司 | 一种三轴多级罗茨泵的泵壳体结构 |
CN110594156B (zh) | 2019-09-23 | 2021-05-25 | 兑通真空技术(上海)有限公司 | 一种三轴多级罗茨泵的驱动结构 |
CN210629269U (zh) | 2019-09-23 | 2020-05-26 | 兑通真空技术(上海)有限公司 | 一种罗茨泵的电机连接传动结构 |
CN110685912A (zh) | 2019-10-10 | 2020-01-14 | 兑通真空技术(上海)有限公司 | 一种多轴多级罗茨泵转子连接的结构 |
CN113309701B (zh) * | 2021-07-09 | 2023-12-26 | 广德玉龙泵业有限公司 | 一种罗茨真空泵 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1531607A (en) * | 1923-01-24 | 1925-03-31 | Thomas W Green | High-pressure rotary pump |
FR660528A (fr) * | 1928-09-17 | 1929-07-12 | Cfcmug | Compresseur roots multi-cellulaire pour hautes pressions |
US2489887A (en) * | 1946-07-11 | 1949-11-29 | Roots Connersville Blower Corp | Rotary pump |
US2648488A (en) * | 1946-09-04 | 1953-08-11 | Joy Mfg Co | Apparatus for providing variable quantities of compressed fluids |
GB684999A (en) * | 1949-08-23 | 1952-12-31 | Frankfurter Maschb Ag | Improvements in or relating to compressed air systems |
SE315444B (de) * | 1965-05-14 | 1969-09-29 | A Lysholm | |
US3667874A (en) * | 1970-07-24 | 1972-06-06 | Cornell Aeronautical Labor Inc | Two-stage compressor having interengaging rotary members |
US3922117A (en) * | 1972-11-10 | 1975-11-25 | Calspan Corp | Two-stage roots type compressor |
US4102615A (en) * | 1976-10-13 | 1978-07-25 | Irgens Finn T | Internally cooled rotary combustion engine |
JPS59115489A (ja) * | 1982-12-23 | 1984-07-03 | Unozawagumi Tekkosho:Kk | 逆流冷却式多段ル−ツ型真空ポンプ |
JPS6319092U (de) * | 1986-07-23 | 1988-02-08 | ||
JPH0733834B2 (ja) * | 1986-12-18 | 1995-04-12 | 株式会社宇野澤組鐵工所 | ロータ内蔵ハウジングの外周温度が安定化された内部分流逆流冷却多段式の三葉式真空ポンプ |
JPS62189388A (ja) * | 1987-01-30 | 1987-08-19 | Ebara Corp | 多段ル−ツ型真空ポンプ |
-
1988
- 1988-09-05 JP JP63220496A patent/JP2691168B2/ja not_active Expired - Lifetime
-
1989
- 1989-08-24 DE DE8989308590T patent/DE68904275T2/de not_active Expired - Lifetime
- 1989-08-24 EP EP89308590A patent/EP0359423B1/de not_active Expired - Lifetime
- 1989-08-31 US US07/400,993 patent/US4995796A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4995796A (en) | 1991-02-26 |
EP0359423A3 (en) | 1990-06-27 |
EP0359423A2 (de) | 1990-03-21 |
EP0359423B1 (de) | 1993-01-07 |
DE68904275T2 (de) | 1993-05-06 |
JP2691168B2 (ja) | 1997-12-17 |
JPH0270990A (ja) | 1990-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |