EP0943807A1 - Pompe turbomoléculaire - Google Patents
Pompe turbomoléculaire Download PDFInfo
- Publication number
- EP0943807A1 EP0943807A1 EP99400484A EP99400484A EP0943807A1 EP 0943807 A1 EP0943807 A1 EP 0943807A1 EP 99400484 A EP99400484 A EP 99400484A EP 99400484 A EP99400484 A EP 99400484A EP 0943807 A1 EP0943807 A1 EP 0943807A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pump
- casing
- turbomolecular pump
- inlet
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/168—Pumps specially adapted to produce a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Definitions
- the present invention relates to a turbomolecular pump.
- turbomolecular pump any secondary vacuum pump mechanical type with rotating rotor, whether finned or drum-type, or mixed.
- the pumping group includes in particular a turbomolecular pump connected to the enclosure to be emptied via a valve.
- the present invention aims to reduce the size of such assembly, and reduce the number of seals.
- the subject of the invention is therefore a turbomolecular pump comprising a rotor housed inside a housing comprising an inlet for suction and a outlet for discharge, said pump being associated with its inlet to a valve comprising a valve mechanism inside an enclosure, characterized in that said valve cover is in one piece with said pump housing.
- FIG. 1 shows a turbomolecular pump according to the invention connected to an enclosure to empty.
- Figure 2 is an enlarged view of the valve.
- turbomolecular pump 1 comprising a rotor 2 housed inside a casing 3.
- the rotor 2 comprises a plurality of stages 4 of movable fins and the casing 3 supports a plurality of stages of stator fins 5.
- the casing 3 of the pump has a discharge outlet 8 comprising a connecting flange 9 for its assembly with a pump primary.
- the pump 1 is associated, at its suction inlet 10, with a valve 11 comprising a valve mechanism 12 located inside an envelope 13.
- the casing 13 of the valve 11 is in one piece with the casing 3 of the pump 1.
- the casing 13 and the casing 3 therefore constitute a one and the same piece without assembly.
- the assembly is connected to an enclosure to be emptied 14 by means of flanges 15A-15B with a seal 16 between the two flanges 15A and 15B.
- the arrangement according to the invention makes it possible to avoid assembly by flanges between the pump 1 and the valve 11, and therefore to reduce the space requirement and remove a seal between the pump and the valve. Deleting a joint is beneficial, because it reduces pollution of enclosure 14.
- the valve shown is a slide valve, the mechanism of which comprises two movable valves 17 and 18 subjected to a force of approach one towards the other by a return spring 19. Between the two valves, is located a carriage 20 linked to a control axis 21.
- the carriage comprises balls 22 which, in position valve open ( Figure 2), are partly housed in grooves 22 arranged in the valves, and allowing mutual reconciliation of the valves by the force of the return spring 19.
- valve In Figure 1, the valve is in the closed position, the valves are in abutment against the bottom of the casing 13 allowing, by pushing the axis 21, to bring out the balls of the grooves 12, and therefore of spreading the valves 17 and 18.
- This slide valve is an all-or-nothing valve.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Sliding Valves (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims (1)
- Pompe turbomoléculaire (1) comprenant un rotor (2) logé à l'intérieur d'un carter (3) comportant une entrée (10) pour l'aspiration, et une sortie (8) pour le refoulement, ladite pompe étant associée, à son entrée, à une vanne (11) comportant un mécanisme de vanne (12) à l'intérieur d'une enveloppe (13), caractérisée en ce que ladite enveloppe (13) de la vanne est monobloc avec ledit carter (3) de la pompe.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9803191 | 1998-03-16 | ||
FR9803191A FR2776029B1 (fr) | 1998-03-16 | 1998-03-16 | Pompe turbomoleculaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0943807A1 true EP0943807A1 (fr) | 1999-09-22 |
EP0943807B1 EP0943807B1 (fr) | 2003-08-20 |
Family
ID=9524085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99400484A Expired - Lifetime EP0943807B1 (fr) | 1998-03-16 | 1999-03-01 | Pompe turbomoléculaire |
Country Status (5)
Country | Link |
---|---|
US (1) | US6186749B1 (fr) |
EP (1) | EP0943807B1 (fr) |
JP (1) | JPH11303791A (fr) |
DE (1) | DE69910475T2 (fr) |
FR (1) | FR2776029B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746585A1 (fr) * | 2012-12-18 | 2014-06-25 | Pfeiffer Vacuum GmbH | Système à vide |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19951954A1 (de) * | 1999-10-28 | 2001-05-03 | Pfeiffer Vacuum Gmbh | Turbomolekularpumpe |
JP4672204B2 (ja) * | 2001-08-03 | 2011-04-20 | エドワーズ株式会社 | 真空ポンプの接続構造及び真空ポンプ |
DE102004047930A1 (de) * | 2004-10-01 | 2006-04-06 | Leybold Vacuum Gmbh | Reibungsvakuumpumpe |
DE102016114983A1 (de) * | 2016-08-12 | 2018-02-15 | Pfeiffer Vacuum Gmbh | Vakuumsystem |
US10704715B2 (en) * | 2017-05-29 | 2020-07-07 | Shimadzu Corporation | Vacuum pumping device, vacuum pump, and vacuum valve |
JP6951640B2 (ja) * | 2017-05-29 | 2021-10-20 | 株式会社島津製作所 | 真空排気装置、真空ポンプおよび真空バルブ |
GB2575450B (en) * | 2018-07-09 | 2022-01-26 | Edwards Ltd | A variable inlet conductance vacuum pump, vacuum pump arrangement and method |
GB2591814A (en) * | 2020-02-10 | 2021-08-11 | Edwards Vacuum Llc | Housing for a vacuum pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0332107A1 (fr) * | 1988-03-07 | 1989-09-13 | Kabushiki Kaisha Toshiba | Pompe turbomoléculaire et son procédé d'opération |
EP0397051A1 (fr) * | 1989-05-09 | 1990-11-14 | Kabushiki Kaisha Toshiba | Appareil et méthode de production de vide |
JPH0633874A (ja) * | 1992-07-16 | 1994-02-08 | Ulvac Kuraio Kk | ターボ分子ポンプ付クライオポンプ装置 |
-
1998
- 1998-03-16 FR FR9803191A patent/FR2776029B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-26 JP JP11051084A patent/JPH11303791A/ja active Pending
- 1999-03-01 EP EP99400484A patent/EP0943807B1/fr not_active Expired - Lifetime
- 1999-03-01 DE DE69910475T patent/DE69910475T2/de not_active Expired - Fee Related
- 1999-03-12 US US09/266,729 patent/US6186749B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0332107A1 (fr) * | 1988-03-07 | 1989-09-13 | Kabushiki Kaisha Toshiba | Pompe turbomoléculaire et son procédé d'opération |
EP0397051A1 (fr) * | 1989-05-09 | 1990-11-14 | Kabushiki Kaisha Toshiba | Appareil et méthode de production de vide |
JPH0633874A (ja) * | 1992-07-16 | 1994-02-08 | Ulvac Kuraio Kk | ターボ分子ポンプ付クライオポンプ装置 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 18, no. 249 (M - 1604) 12 May 1994 (1994-05-12) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746585A1 (fr) * | 2012-12-18 | 2014-06-25 | Pfeiffer Vacuum GmbH | Système à vide |
Also Published As
Publication number | Publication date |
---|---|
DE69910475T2 (de) | 2004-06-17 |
EP0943807B1 (fr) | 2003-08-20 |
FR2776029A1 (fr) | 1999-09-17 |
JPH11303791A (ja) | 1999-11-02 |
DE69910475D1 (de) | 2003-09-25 |
FR2776029B1 (fr) | 2000-06-23 |
US6186749B1 (en) | 2001-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0368122A1 (fr) | Pompe à vide du type roots multiétagé | |
EP0943807B1 (fr) | Pompe turbomoléculaire | |
BE1014910A5 (fr) | Dispositif de protection de moteur sur une volute non orbitale. | |
WO2012080612A2 (fr) | Compresseur frigorifique à spirales | |
WO2011151554A2 (fr) | Compresseur frigorifique à spirales | |
FR2614653A1 (fr) | Ensemble de soupape d'echappement pour compresseur et son application a un compresseur | |
WO2012080613A2 (fr) | Compresseur frigorifique à spirales | |
FR2745604A1 (fr) | Turbocompresseur a suralimentation | |
EP0464292B1 (fr) | Ensemble mécanique de pompage pour vide secondaire et installation de détection de fuite utilisant un tel ensemble | |
BE1014900A5 (fr) | Appareil pour minimiser les fuites d'huile lors d'un fonctionnement inverse d'un compresseur a volutes. | |
FR2675213A1 (fr) | Systeme formant barriere pour l'huile de lubrification des paliers d'un compresseur centrifuge muni de joints d'etancheite a labyrinthe installe dans un environnement confine. | |
EP0534824A1 (fr) | Détecteur de fuite à gaz traceur | |
FR2736399A1 (fr) | Compresseur a volutes, muni d'un clapet de retenue d'aspiration | |
EP0751297B1 (fr) | Pompe turbomoléculaire | |
EP1477684B1 (fr) | Pompe moléculaire, turbomoléculaire ou hybride à vanne integrée | |
FR2691382A1 (fr) | Installation de pompage pour pomper une enceinte contenant des gaz mélangés à des particules solides ou susceptibles de générer des particules ou condensats solides. | |
FR2767489A1 (fr) | Piege refroidi et procede de piegage de vapeur d'eau avec un tel piege | |
FR2499169A1 (fr) | Pompe centrifuge pour le transport de liquides contenant du gaz | |
FR2567208A1 (fr) | Pompe rotative a vide eleve | |
FR3101683A1 (fr) | Pompe à vide turbomoléculaire | |
WO2011151553A2 (fr) | Agencement de clapet pour compresseur frigorifique à spirales | |
FR2550829A1 (fr) | Pompe turbo-moleculaire verticale | |
FR2682164A1 (fr) | Installation de pompage de gaz avec regulation de la vitesse de pompage. | |
EP1380779A1 (fr) | Clapet de pression résiduelle | |
EP1473462B1 (fr) | Groupe compresseur à montage en cartouche |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE GB IT LI NL |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GUILBERT, JEAN-FRANCOIS Inventor name: BOUILLE, ANDRE |
|
17P | Request for examination filed |
Effective date: 20000322 |
|
AKX | Designation fees paid |
Free format text: CH DE GB IT LI NL |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): CH DE GB IT LI NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030820 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: CRONIN INTELLECTUAL PROPERTY |
|
REF | Corresponds to: |
Ref document number: 69910475 Country of ref document: DE Date of ref document: 20030925 Kind code of ref document: P |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040524 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20060314 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20060315 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060331 Year of fee payment: 8 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20070301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070331 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070301 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20060322 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070301 |