BE812288A - Perfectionnement aux pompes moleculaires a vide pousse a tambour cylindrique - Google Patents

Perfectionnement aux pompes moleculaires a vide pousse a tambour cylindrique

Info

Publication number
BE812288A
BE812288A BE141990A BE141990A BE812288A BE 812288 A BE812288 A BE 812288A BE 141990 A BE141990 A BE 141990A BE 141990 A BE141990 A BE 141990A BE 812288 A BE812288 A BE 812288A
Authority
BE
Belgium
Prior art keywords
improvement
cylindrical drum
vacuum pumps
molecular vacuum
drum push
Prior art date
Application number
BE141990A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE812288A publication Critical patent/BE812288A/xx

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
    • 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
    • F04D19/044—Holweck-type pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
BE141990A 1973-03-21 1974-03-14 Perfectionnement aux pompes moleculaires a vide pousse a tambour cylindrique BE812288A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310183A FR2222886A5 (xx) 1973-03-21 1973-03-21

Publications (1)

Publication Number Publication Date
BE812288A true BE812288A (fr) 1974-09-16

Family

ID=9116654

Family Applications (1)

Application Number Title Priority Date Filing Date
BE141990A BE812288A (fr) 1973-03-21 1974-03-14 Perfectionnement aux pompes moleculaires a vide pousse a tambour cylindrique

Country Status (10)

Country Link
US (1) US3912415A (xx)
JP (1) JPS49128306A (xx)
BE (1) BE812288A (xx)
CH (1) CH579219A5 (xx)
DE (1) DE2411247C2 (xx)
FR (1) FR2222886A5 (xx)
GB (1) GB1459933A (xx)
IT (1) IT1014568B (xx)
NL (1) NL7403784A (xx)
SU (1) SU667162A3 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105614A (nl) * 1981-12-14 1983-07-01 Ultra Centrifuge Nederland Nv Hoog-vacuum moleculair pomp.
DE3627642C3 (de) * 1985-08-14 1996-03-21 Rikagaku Kenkyusho Vakuumpumpe mit Gewindekanal
JPS6238899A (ja) * 1985-08-14 1987-02-19 Osaka Shinku Kiki Seisakusho:Kk ねじ溝式真空ポンプ
JPS6351195U (xx) * 1986-09-20 1988-04-06
JPH06205706A (ja) * 1992-12-09 1994-07-26 Ciba Geigy Ag コンタクトレンズケース
GB2585936A (en) 2019-07-25 2021-01-27 Edwards Ltd Drag pump
EP4194700A1 (de) * 2023-04-18 2023-06-14 Pfeiffer Vacuum Technology AG Vakuumpumpe mit einer holweck-pumpstufe mit veränderlicher holweck-geometrie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR536278A (fr) * 1921-06-01 1922-04-29 Pompe hélicoïdale pour vides élevés
US1492846A (en) * 1922-05-11 1924-05-06 Mullard Radio Valve Co Ltd Vacuum pump
FR1293546A (fr) * 1961-02-09 1962-05-18 Alsacienne Constr Meca Perfectionnements aux pompes moléculaires rotatives
US3697190A (en) * 1970-11-03 1972-10-10 Walter D Haentjens Truncated conical drag pump
DE2118738C3 (de) * 1971-04-17 1974-11-14 Dornier Dmbh, 7990 Friedrichshafen Molekularpumpe, bestehend aus einem mit Innengewinde versehenen zylindrischen Stator

Also Published As

Publication number Publication date
JPS49128306A (xx) 1974-12-09
DE2411247C2 (de) 1983-03-24
GB1459933A (en) 1976-12-31
US3912415A (en) 1975-10-14
DE2411247A1 (de) 1974-09-26
IT1014568B (it) 1977-04-30
FR2222886A5 (xx) 1974-10-18
CH579219A5 (xx) 1976-08-31
NL7403784A (xx) 1974-09-24
SU667162A3 (ru) 1979-06-05

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