TW200513594A - Reducing exhaust pulsation in dry pumps - Google Patents
Reducing exhaust pulsation in dry pumpsInfo
- Publication number
- TW200513594A TW200513594A TW093124573A TW93124573A TW200513594A TW 200513594 A TW200513594 A TW 200513594A TW 093124573 A TW093124573 A TW 093124573A TW 93124573 A TW93124573 A TW 93124573A TW 200513594 A TW200513594 A TW 200513594A
- Authority
- TW
- Taiwan
- Prior art keywords
- rotor elements
- rotation
- pump
- shaft
- reducing exhaust
- 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
- 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
-
- 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
- F04C18/123—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 or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0319344A GB0319344D0 (en) | 2003-08-18 | 2003-08-18 | Reducing exhaust pulsation in dry pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200513594A true TW200513594A (en) | 2005-04-16 |
Family
ID=28052677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW093124573A TW200513594A (en) | 2003-08-18 | 2004-08-16 | Reducing exhaust pulsation in dry pumps |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1656504A1 (zh) |
JP (1) | JP2007502932A (zh) |
GB (1) | GB0319344D0 (zh) |
TW (1) | TW200513594A (zh) |
WO (1) | WO2005019652A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0524649D0 (en) * | 2005-12-02 | 2006-01-11 | Boc Group Plc | Multi-stage roots vacuum pump |
EP2012014A1 (en) * | 2007-07-06 | 2009-01-07 | Yamada Manufacturing Co., Ltd. | Internal gear pump with non-equal teeth pitch spacings |
JP4404115B2 (ja) * | 2007-08-13 | 2010-01-27 | ダイキン工業株式会社 | スクリュー圧縮機 |
WO2011039812A1 (ja) * | 2009-09-30 | 2011-04-07 | 樫山工業株式会社 | 容積移送型ドライ真空ポンプ |
US8888474B2 (en) * | 2011-09-08 | 2014-11-18 | Baker Hughes Incorporated | Downhole motors and pumps with asymmetric lobes |
JP6179537B2 (ja) | 2015-02-24 | 2017-08-16 | トヨタ自動車株式会社 | 車両用バンパー補強構造 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191223348A (en) * | 1912-01-26 | 1913-03-13 | Aleksander Jedrusik | Improvements in and relating to Root's Blowers and the like. |
GB953799A (en) * | 1959-08-11 | 1964-04-02 | Heraeus Gmbh W C | Improvements in or relating to mechanical high vacuum pumps of the roots blower type |
JPS6477782A (en) * | 1987-09-19 | 1989-03-23 | Ebara Corp | Rotary machine of roots type |
GB9021780D0 (en) * | 1990-10-06 | 1990-11-21 | Boc Group Plc | Improvements in mechanical pumps |
US5454701A (en) * | 1994-06-02 | 1995-10-03 | Chen; Chia-Hsing | Screw compressor with rotors having hyper profile |
-
2003
- 2003-08-18 GB GB0319344A patent/GB0319344D0/en not_active Ceased
-
2004
- 2004-08-02 EP EP04767951A patent/EP1656504A1/en not_active Withdrawn
- 2004-08-02 WO PCT/GB2004/003316 patent/WO2005019652A1/en active Application Filing
- 2004-08-02 JP JP2006523664A patent/JP2007502932A/ja not_active Ceased
- 2004-08-16 TW TW093124573A patent/TW200513594A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
GB0319344D0 (en) | 2003-09-17 |
WO2005019652A1 (en) | 2005-03-03 |
EP1656504A1 (en) | 2006-05-17 |
JP2007502932A (ja) | 2007-02-15 |
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