EP1201927A3 - Vacuum pump - Google Patents
Vacuum pump Download PDFInfo
- Publication number
- EP1201927A3 EP1201927A3 EP01124365A EP01124365A EP1201927A3 EP 1201927 A3 EP1201927 A3 EP 1201927A3 EP 01124365 A EP01124365 A EP 01124365A EP 01124365 A EP01124365 A EP 01124365A EP 1201927 A3 EP1201927 A3 EP 1201927A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- bellows
- pipe
- vacuum pump
- incorporates
- constitute
- 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.)
- Granted
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
- F04C29/12—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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000322577 | 2000-10-23 | ||
JP2000322577A JP2002130170A (en) | 2000-10-23 | 2000-10-23 | Channel structure in vacuum pump |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1201927A2 EP1201927A2 (en) | 2002-05-02 |
EP1201927A3 true EP1201927A3 (en) | 2003-01-22 |
EP1201927B1 EP1201927B1 (en) | 2004-09-01 |
Family
ID=18800431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010124365 Expired - Lifetime EP1201927B1 (en) | 2000-10-23 | 2001-10-23 | Vacuum pump |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1201927B1 (en) |
JP (1) | JP2002130170A (en) |
DE (1) | DE60105249T2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3922140B2 (en) | 2002-09-06 | 2007-05-30 | 株式会社豊田自動織機 | Fluid pump device |
JP4007130B2 (en) * | 2002-09-10 | 2007-11-14 | 株式会社豊田自動織機 | Vacuum pump |
JP3896930B2 (en) | 2002-09-10 | 2007-03-22 | 株式会社豊田自動織機 | Fluid pump device |
JP3991918B2 (en) | 2003-05-19 | 2007-10-17 | 株式会社豊田自動織機 | Roots pump |
JP4702236B2 (en) * | 2006-09-12 | 2011-06-15 | 株式会社豊田自動織機 | Vacuum pump shutdown control method and shutdown control apparatus |
CN102297135B (en) * | 2010-06-25 | 2013-09-04 | 宝山钢铁股份有限公司 | Nonlinear sound elimination method and sound eliminator for high-power double-blade countercurrent cooling type Roots vacuum pump |
CN104131962B (en) * | 2013-11-25 | 2017-05-24 | 东莞四唯微型水泵有限公司 | Vacuum air pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422766A (en) * | 1965-03-31 | 1969-01-21 | English Electric Co Ltd | Pump assemblies |
JPS5638598A (en) * | 1979-09-05 | 1981-04-13 | Hitachi Ltd | Exhausting device of turbo-molecular pump |
JPS618479A (en) * | 1984-06-25 | 1986-01-16 | Fujitsu Ltd | Vacuum unit |
JPH0431675A (en) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | Connecting member for vacuum |
US5411376A (en) * | 1993-12-15 | 1995-05-02 | Walbro Corporation | Fuel pump with noise suppression |
-
2000
- 2000-10-23 JP JP2000322577A patent/JP2002130170A/en active Pending
-
2001
- 2001-10-23 EP EP20010124365 patent/EP1201927B1/en not_active Expired - Lifetime
- 2001-10-23 DE DE2001605249 patent/DE60105249T2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422766A (en) * | 1965-03-31 | 1969-01-21 | English Electric Co Ltd | Pump assemblies |
JPS5638598A (en) * | 1979-09-05 | 1981-04-13 | Hitachi Ltd | Exhausting device of turbo-molecular pump |
JPS618479A (en) * | 1984-06-25 | 1986-01-16 | Fujitsu Ltd | Vacuum unit |
JPH0431675A (en) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | Connecting member for vacuum |
US5411376A (en) * | 1993-12-15 | 1995-05-02 | Walbro Corporation | Fuel pump with noise suppression |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 005, no. 093 (M - 074) 17 June 1981 (1981-06-17) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 153 (M - 484) 3 June 1986 (1986-06-03) * |
PATENT ABSTRACTS OF JAPAN vol. 016, no. 206 (M - 1248) 15 May 1992 (1992-05-15) * |
Also Published As
Publication number | Publication date |
---|---|
DE60105249D1 (en) | 2004-10-07 |
EP1201927A2 (en) | 2002-05-02 |
EP1201927B1 (en) | 2004-09-01 |
JP2002130170A (en) | 2002-05-09 |
DE60105249T2 (en) | 2005-09-01 |
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