FI893103A0 - TURBOMOLEKYLAER PUMP. - Google Patents

TURBOMOLEKYLAER PUMP.

Info

Publication number
FI893103A0
FI893103A0 FI893103A FI893103A FI893103A0 FI 893103 A0 FI893103 A0 FI 893103A0 FI 893103 A FI893103 A FI 893103A FI 893103 A FI893103 A FI 893103A FI 893103 A0 FI893103 A0 FI 893103A0
Authority
FI
Finland
Prior art keywords
rotor
piston
bore
stator
chambers
Prior art date
Application number
FI893103A
Other languages
Finnish (fi)
Other versions
FI893103A (en
Inventor
Jacques Long
Denis Perrillat-Amede
Original Assignee
Cit Alcatel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cit Alcatel filed Critical Cit Alcatel
Publication of FI893103A0 publication Critical patent/FI893103A0/en
Publication of FI893103A publication Critical patent/FI893103A/en

Links

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/06—Lubrication
    • F04D29/063—Lubrication specially adapted for elastic fluid 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
    • 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

Abstract

Turbomolecular pump comprising a rotor (40) and a stator (1, 42), the rotor being supported in the stator by bearings (3, 4), the stator (1, 42), in its part carrying the said bearings being pierced with a bore (6) equipped with a piston (13) delimiting with the said bore chambers (16, 17) forming grease reserves, at least one radial channel (9, 10) extending from each of these chambers, the said piston (13) possessing towards its outer end, means (14) for allowing it to penetrate into the said bore (6), characterised in that each channel (9, 10) terminates opposite a threaded cylindrical bearing surface (31, 32) integral with the rotor (40) and immediately adjacent to a supporting bearing (3, 4) of the rotor, bringing the grease axially to the said bearing along a circular ring, the said piston (13) being equipped with a gasket (25) located between the chambers (16, 17) and its outer end (26), the said means making it possible for the piston to penetrate into the bore comprising a drive means (20) activated periodically. <IMAGE>
FI893103A 1988-06-29 1989-06-26 TURBOMOLEKYLAER PUMP. FI893103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8808738A FR2633675B1 (en) 1988-06-29 1988-06-29 TURBOMOLECULAR PUMP

Publications (2)

Publication Number Publication Date
FI893103A0 true FI893103A0 (en) 1989-06-26
FI893103A FI893103A (en) 1989-12-30

Family

ID=9367850

Family Applications (1)

Application Number Title Priority Date Filing Date
FI893103A FI893103A (en) 1988-06-29 1989-06-26 TURBOMOLEKYLAER PUMP.

Country Status (6)

Country Link
EP (1) EP0348931B1 (en)
JP (1) JPH0278798A (en)
AT (1) ATE69088T1 (en)
DE (1) DE68900380D1 (en)
FI (1) FI893103A (en)
FR (1) FR2633675B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0508013D0 (en) * 2005-04-20 2005-05-25 Boc Group Plc Vacuum pump
JP6079052B2 (en) * 2012-08-24 2017-02-15 株式会社島津製作所 Vacuum pump
DE102012220040A1 (en) * 2012-11-02 2014-05-08 Pfeiffer Vacuum Gmbh vacuum pump
US10022531B2 (en) 2016-01-21 2018-07-17 Teva Medical Ltd. Luer lock adaptor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954845A (en) * 1957-06-11 1960-10-04 Salvador A Minera Temperature actuated lubricating device
GB1487268A (en) * 1976-02-25 1977-09-28 Telehoist Ltd Methods of lubricating
DE2853742A1 (en) * 1978-12-13 1980-10-02 Leybold Heraeus Gmbh & Co Kg Turbo-molecular vacuum pump with two=part rotor spindle - has solid lubricant ejected from spindle interior towards top and bottom bearings
NL8601666A (en) * 1986-06-25 1988-01-18 Skf Ind Trading & Dev LUBRICATION DEVICE.

Also Published As

Publication number Publication date
EP0348931A1 (en) 1990-01-03
FI893103A (en) 1989-12-30
FR2633675A1 (en) 1990-01-05
DE68900380D1 (en) 1991-12-05
JPH0278798A (en) 1990-03-19
FR2633675B1 (en) 1991-02-15
EP0348931B1 (en) 1991-10-30
ATE69088T1 (en) 1991-11-15

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: ALCATEL CIT