NL142222B - ROTATING MOLECULAR PUMP. - Google Patents

ROTATING MOLECULAR PUMP.

Info

Publication number
NL142222B
NL142222B NL62278415A NL278415A NL142222B NL 142222 B NL142222 B NL 142222B NL 62278415 A NL62278415 A NL 62278415A NL 278415 A NL278415 A NL 278415A NL 142222 B NL142222 B NL 142222B
Authority
NL
Netherlands
Prior art keywords
molecular pump
rotating molecular
rotating
pump
molecular
Prior art date
Application number
NL62278415A
Other languages
Dutch (nl)
Original Assignee
Snecma
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 Snecma filed Critical Snecma
Publication of NL142222B publication Critical patent/NL142222B/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
    • 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
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
NL62278415A 1961-05-15 1962-05-14 ROTATING MOLECULAR PUMP. NL142222B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR861775A FR1297182A (en) 1961-05-15 1961-05-15 Turbomolecular vacuum pump

Publications (1)

Publication Number Publication Date
NL142222B true NL142222B (en) 1974-05-15

Family

ID=8755156

Family Applications (1)

Application Number Title Priority Date Filing Date
NL62278415A NL142222B (en) 1961-05-15 1962-05-14 ROTATING MOLECULAR PUMP.

Country Status (5)

Country Link
BE (1) BE615904A (en)
FR (1) FR1297182A (en)
GB (1) GB936175A (en)
LU (1) LU41495A1 (en)
NL (1) NL142222B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757354A (en) * 1969-10-27 1971-03-16 Sargent Welch Scientific Co TURBOMOLECULAR PUMP WITH ADVANCED STATORS AND ROTORS
FR2355177A1 (en) * 1975-06-17 1978-01-13 Bradbury Inventions Pty Ltd Multi-stage axial flow turbine - has stator blades at 45 degrees in opposition to blades on rotor
DE3507274A1 (en) * 1985-03-01 1986-09-04 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar DISC WITH SHOVELS HIGH STABILITY FOR TURBOMOLECULAR PUMPS
DE10046506A1 (en) * 2000-09-20 2002-03-28 Leybold Vakuum Gmbh Turbo-molecular vacuum pump has part of blades thickened in region of pressure side edge
GB2498816A (en) 2012-01-27 2013-07-31 Edwards Ltd Vacuum pump
GB2612781B (en) * 2021-11-10 2024-04-10 Edwards Ltd Turbomolecular pump bladed disc

Also Published As

Publication number Publication date
GB936175A (en) 1963-09-04
LU41495A1 (en) 1962-06-05
DE1428233B2 (en) 1972-07-27
DE1428233A1 (en) 1969-01-09
FR1297182A (en) 1962-06-29
BE615904A (en) 1962-10-02

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