GB1066540A - Improvements in and relating to diffusion pumps - Google Patents

Improvements in and relating to diffusion pumps

Info

Publication number
GB1066540A
GB1066540A GB8816/66A GB881666A GB1066540A GB 1066540 A GB1066540 A GB 1066540A GB 8816/66 A GB8816/66 A GB 8816/66A GB 881666 A GB881666 A GB 881666A GB 1066540 A GB1066540 A GB 1066540A
Authority
GB
United Kingdom
Prior art keywords
vapour
cap
skirt
skirt wall
march
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.)
Expired
Application number
GB8816/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balzers Patent und Beteiligungs AG
Original Assignee
Balzers Patent und Beteiligungs AG
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 Balzers Patent und Beteiligungs AG filed Critical Balzers Patent und Beteiligungs AG
Publication of GB1066540A publication Critical patent/GB1066540A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

1,066,540. Diffusion pumps. BALZERS PATENT-UND LIZENZ-ANSTALT. March 1, 1966 [March 15, 1965], No.8816/66. Heading F1E. In a diffusion pump having a discharge nozzle 38, Fig. 2 surrounded by and spaced from a cooled cap 46, flow paths 56 e. g. in foraminous material or slots, are formed in the skirt wall 42 whereby the interior wall of the skirt 44 is connected with space 55. The slow moving vapour passing through the skirt wall to be condensed on the cap prevents, by means of a boundary layer control effect, slower moving vapour near the skirt wall from being caused to back stream by faster moving vapour nearer the centre of the jet. The cold cap is joined to wires 54 to direct condensed vapour towards the casing walls. The boundary layer control can be applied to all of the pump nozzles.
GB8816/66A 1965-03-15 1966-03-01 Improvements in and relating to diffusion pumps Expired GB1066540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439622A US3355093A (en) 1965-03-15 1965-03-15 Diffusion pump

Publications (1)

Publication Number Publication Date
GB1066540A true GB1066540A (en) 1967-04-26

Family

ID=23745451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8816/66A Expired GB1066540A (en) 1965-03-15 1966-03-01 Improvements in and relating to diffusion pumps

Country Status (3)

Country Link
US (1) US3355093A (en)
CH (1) CH436552A (en)
GB (1) GB1066540A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428444A (en) * 1966-02-21 1969-02-18 Libbey Owens Ford Glass Co Apparatus for minimizing open bottom blisters on float glass
US3478954A (en) * 1967-11-30 1969-11-18 Bendix Corp Vacuum pump
US3572973A (en) * 1969-04-04 1971-03-30 Precision Scient Co Heater and vapor nozzle arrangement for a vacuum diffusion pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656096A (en) * 1946-01-04 1953-10-20 Rateau Soc Centrifugal pump and compressor
GB619722A (en) * 1946-12-20 1949-03-14 English Electric Co Ltd Improvements in and relating to boundary layer control in fluid conduits
US2501614A (en) * 1947-11-28 1950-03-21 Lockheed Aircraft Corp Compressor construction
US2934258A (en) * 1956-09-03 1960-04-26 Edwards High Vacuum Ltd Vapour vacuum pumps or other apparatus employing vapour nozzles
US3067982A (en) * 1958-08-25 1962-12-11 California Inst Res Found Porous wall turbine blades and method of manufacture
US3000401A (en) * 1960-01-29 1961-09-19 Friedrich O Ringleb Boundary layer flow control device
US3165255A (en) * 1962-06-11 1965-01-12 Nat Res Corp High vacuum device

Also Published As

Publication number Publication date
CH436552A (en) 1967-05-31
US3355093A (en) 1967-11-28

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