EP1249614A1 - Gasreibungspumpe mit zusätzlichem Gaseinlass - Google Patents
Gasreibungspumpe mit zusätzlichem Gaseinlass Download PDFInfo
- Publication number
- EP1249614A1 EP1249614A1 EP02002738A EP02002738A EP1249614A1 EP 1249614 A1 EP1249614 A1 EP 1249614A1 EP 02002738 A EP02002738 A EP 02002738A EP 02002738 A EP02002738 A EP 02002738A EP 1249614 A1 EP1249614 A1 EP 1249614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- pump
- gas inlet
- housing
- friction pump
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/042—Turbomolecular vacuum pumps
Definitions
- the invention relates to a gas friction pump with an additional gas inlet according to the preamble of the first claim.
- the invention has for its object a gas inlet on a Imagine gas friction pump at the height of the rotor disks, which opposite the prior art has a higher effectiveness and a faster Enables the desired effects to occur.
- the flow conditions of the additional gas inlet arrangement significantly improved.
- the flow resistance is thereby reduced since there is no longer a tightly bundled one through the inlet bore Gas jet hits the rotor disks and has to be redirected there.
- the figure is intended to illustrate the invention using the example of a turbomolecular pump are explained. It shows a turbomolecular pump with the housing 1, which has a suction opening 2 and a gas outlet opening 3.
- the rotor 4 and the Stator disks 6 have pump-active structures, which in the present case are one Turbomolecular pump made of blade rings with an angle to the disc plane employed blades 8 exist.
- An additional gas inlet 10 in The shape of an elongated hole is attached to the circumference of the housing. This Gas inlet extends in its longitudinal direction over part of the outer one Edge of a rotor disk 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Wird zum Beispiel eine Turbomolekularpumpe außer Betrieb gesetzt, so ist es sinnvoll, die Pumpe mit trockenem Gas zu fluten, um Verunreinigungen, insbesondere durch Kohlenwasserstoffe und Wasser, zu verhindern und die Pumpzeit beim Wiedereinschalten zu verkürzen. Dies geschieht vorzugsweise über ein Ventil, welches am Umfang der Pumpe angebracht ist und den Gasstrom zwischen zwei Rotorscheiben führt (DE-A 18 09 902, DE-A 44 27 153).
- Während des Betriebes einer Turbomolekularpumpe kann es für den Pumpeffekt von Vorteil sein, ein Spülgas einzulassen (DE-A 18 09 902, DE-A 44 27 153).
- Ausgewählte Gase können wirkungsvoll zum Kühlen der Pumpe während des Betriebes eingelassen werden (DE-A 195 08 566).
- Durch Zuführung eines Teils des Gasstromes aus einem Gebiet höheren Druckes auf die Hochvakuumseite in der Höhe der letzten Scheiben kann das Saugvermögen einer Turbomolekularpumpe beeinflusst werden (DE-A 197 04 234)
- Turbomolekularpumpen, welche an Lecksuchanlagen oder Analysensystemen eingesetzt werden, sind in der Regel an mehreren Stellen mit Gaseinlässen versehen, welche das zu zuführende Gas zwischen die Rotorscheiben leiten (DE-A 16 48 648, DE-A 43 31 589).
Claims (1)
- Gasreibungspumpe mit in einem Gehäuse (1) untergebrachten rotierenden (4) und feststehenden Bauteilen (6), die mit pumpaktiven Strukturen zur Förderung von Gasen und zur Aufrechterhaltung eines Druckverhältnis versehen sind, wobei das Gehäuse eine Ansaugöffnung (2) und eine Gasaustrittsöffnung (3) sowie einen zusätzlichen Gaseinlass (10) aufweist, dadurch gekennzeichnet, dass der zusätzliche Gaseinlass (10) in der Form eines Langloches ausgebildet ist, welches in Umfangsrichtung am Gehäuse (1) angebracht ist und sich in seiner Längsausdehnung über einen Teil des äußeren Randes eines rotierenden Bauteiles erstreckt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10111603 | 2001-03-10 | ||
DE10111603A DE10111603A1 (de) | 2001-03-10 | 2001-03-10 | Gasreibungspumpe mit zusätzlichem Gaseinlass |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1249614A1 true EP1249614A1 (de) | 2002-10-16 |
EP1249614B1 EP1249614B1 (de) | 2009-11-04 |
Family
ID=7677017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02002738A Expired - Lifetime EP1249614B1 (de) | 2001-03-10 | 2002-02-07 | Gasreibungspumpe mit zusätzlichem Gaseinlass |
Country Status (4)
Country | Link |
---|---|
US (1) | US6644912B2 (de) |
EP (1) | EP1249614B1 (de) |
JP (1) | JP4512305B2 (de) |
DE (2) | DE10111603A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008013142A1 (de) * | 2008-03-07 | 2009-09-10 | Oerlikon Leybold Vacuum Gmbh | Turbomolekularpumpe |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010011790U1 (de) * | 2010-08-25 | 2011-12-05 | Oerlikon Leybold Vacuum Gmbh | Turbomolekularpumpen |
TWI424121B (zh) * | 2010-12-10 | 2014-01-21 | Prosol Corp | 渦輪分子泵浦之葉片結構改良 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1809902A1 (de) * | 1968-11-20 | 1970-06-04 | Pfeiffer Vakuumtechnik | Turbo-Molekularpumpe mit Fluteinrichtung |
DE1648648A1 (de) * | 1967-04-12 | 1972-02-10 | Pfeiffer Vakuumtechnik | Anordnung zur Lecksuche nach dem Massenspektrometer-Prinzip |
DE2442614A1 (de) * | 1974-09-04 | 1976-03-18 | Siemens Ag | Turbomolekularpumpe |
GB2132364A (en) * | 1981-08-03 | 1984-07-04 | Balzers Hochvakuum | Low pressure leak detector |
US4550593A (en) * | 1981-08-26 | 1985-11-05 | Leybold-Heraeus Gmbh | Turbomolecular pump suitable for performing counterflow leakage tests |
US6030189A (en) | 1995-10-20 | 2000-02-29 | Leybold Vakuum Gmbh | Friction vacuum pump with intermediate inlet |
US6193461B1 (en) * | 1999-02-02 | 2001-02-27 | Varian Inc. | Dual inlet vacuum pumps |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4331589C2 (de) * | 1992-12-24 | 2003-06-26 | Pfeiffer Vacuum Gmbh | Vakuumpumpsystem |
DE19508566A1 (de) * | 1995-03-10 | 1996-09-12 | Balzers Pfeiffer Gmbh | Molekularvakuumpumpe mit Kühlgaseinrichtung und Verfahren zu deren Betrieb |
-
2001
- 2001-03-10 DE DE10111603A patent/DE10111603A1/de not_active Ceased
-
2002
- 2002-02-06 JP JP2002029152A patent/JP4512305B2/ja not_active Expired - Lifetime
- 2002-02-07 DE DE50213975T patent/DE50213975D1/de not_active Expired - Lifetime
- 2002-02-07 EP EP02002738A patent/EP1249614B1/de not_active Expired - Lifetime
- 2002-03-01 US US10/086,679 patent/US6644912B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1648648A1 (de) * | 1967-04-12 | 1972-02-10 | Pfeiffer Vakuumtechnik | Anordnung zur Lecksuche nach dem Massenspektrometer-Prinzip |
DE1809902A1 (de) * | 1968-11-20 | 1970-06-04 | Pfeiffer Vakuumtechnik | Turbo-Molekularpumpe mit Fluteinrichtung |
DE2442614A1 (de) * | 1974-09-04 | 1976-03-18 | Siemens Ag | Turbomolekularpumpe |
GB2132364A (en) * | 1981-08-03 | 1984-07-04 | Balzers Hochvakuum | Low pressure leak detector |
US4550593A (en) * | 1981-08-26 | 1985-11-05 | Leybold-Heraeus Gmbh | Turbomolecular pump suitable for performing counterflow leakage tests |
US6030189A (en) | 1995-10-20 | 2000-02-29 | Leybold Vakuum Gmbh | Friction vacuum pump with intermediate inlet |
US6193461B1 (en) * | 1999-02-02 | 2001-02-27 | Varian Inc. | Dual inlet vacuum pumps |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008013142A1 (de) * | 2008-03-07 | 2009-09-10 | Oerlikon Leybold Vacuum Gmbh | Turbomolekularpumpe |
Also Published As
Publication number | Publication date |
---|---|
JP2002295397A (ja) | 2002-10-09 |
DE10111603A1 (de) | 2002-09-12 |
DE50213975D1 (de) | 2009-12-17 |
US20020127094A1 (en) | 2002-09-12 |
US6644912B2 (en) | 2003-11-11 |
EP1249614B1 (de) | 2009-11-04 |
JP4512305B2 (ja) | 2010-07-28 |
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