WO2009063820A1 - Dry pump - Google Patents
Dry pump Download PDFInfo
- Publication number
- WO2009063820A1 WO2009063820A1 PCT/JP2008/070393 JP2008070393W WO2009063820A1 WO 2009063820 A1 WO2009063820 A1 WO 2009063820A1 JP 2008070393 W JP2008070393 W JP 2008070393W WO 2009063820 A1 WO2009063820 A1 WO 2009063820A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dry pump
- rotor
- shaft
- heat transfer
- rotor shaft
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
Provided is a dry pump having a rotor stored in a cylinder; a rotor shaft, i.e., a shaft for rotating the rotor; and a heat transfer member which is arranged inside the rotor shaft and has a heat transfer performance higher than that of the rotor shaft.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007296013 | 2007-11-14 | ||
JP2007-296013 | 2007-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009063820A1 true WO2009063820A1 (en) | 2009-05-22 |
Family
ID=40638670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/070393 WO2009063820A1 (en) | 2007-11-14 | 2008-11-10 | Dry pump |
Country Status (2)
Country | Link |
---|---|
TW (1) | TW200938732A (en) |
WO (1) | WO2009063820A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109026709A (en) * | 2018-09-18 | 2018-12-18 | 世通海泰泵业(天津)股份有限公司 | Multiple compression vacuum pump |
CN111911386A (en) * | 2020-08-12 | 2020-11-10 | 安徽高坚机械科技有限公司 | Crank-connecting rod mechanism for refrigeration compressor and working method thereof |
FR3103862A1 (en) * | 2019-12-03 | 2021-06-04 | Pfeiffer Vacuum | Rotor and multistage dry vacuum pump |
WO2023223031A1 (en) * | 2022-05-18 | 2023-11-23 | Edwards Limited | Multi-stage vacuum pump |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56167894A (en) * | 1980-05-27 | 1981-12-23 | Matsushita Electric Ind Co Ltd | Compressor |
JPS62200191U (en) * | 1986-06-11 | 1987-12-19 | ||
JPS63126576U (en) * | 1987-02-12 | 1988-08-18 | ||
JPH11230060A (en) * | 1998-02-18 | 1999-08-24 | Ebara Corp | Rotor for rotary gas machine and its manufacture |
-
2008
- 2008-11-10 WO PCT/JP2008/070393 patent/WO2009063820A1/en active Application Filing
- 2008-11-12 TW TW97143729A patent/TW200938732A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56167894A (en) * | 1980-05-27 | 1981-12-23 | Matsushita Electric Ind Co Ltd | Compressor |
JPS62200191U (en) * | 1986-06-11 | 1987-12-19 | ||
JPS63126576U (en) * | 1987-02-12 | 1988-08-18 | ||
JPH11230060A (en) * | 1998-02-18 | 1999-08-24 | Ebara Corp | Rotor for rotary gas machine and its manufacture |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109026709A (en) * | 2018-09-18 | 2018-12-18 | 世通海泰泵业(天津)股份有限公司 | Multiple compression vacuum pump |
FR3103862A1 (en) * | 2019-12-03 | 2021-06-04 | Pfeiffer Vacuum | Rotor and multistage dry vacuum pump |
WO2021110447A1 (en) * | 2019-12-03 | 2021-06-10 | Pfeiffer Vacuum | Rotor and multistage dry vacuum pump |
CN114729642A (en) * | 2019-12-03 | 2022-07-08 | 普发真空公司 | Rotor and multistage dry vacuum pump |
CN111911386A (en) * | 2020-08-12 | 2020-11-10 | 安徽高坚机械科技有限公司 | Crank-connecting rod mechanism for refrigeration compressor and working method thereof |
WO2023223031A1 (en) * | 2022-05-18 | 2023-11-23 | Edwards Limited | Multi-stage vacuum pump |
Also Published As
Publication number | Publication date |
---|---|
TW200938732A (en) | 2009-09-16 |
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