GB902646A - Improvements in or relating to vapour jet vacuum pumps - Google Patents

Improvements in or relating to vapour jet vacuum pumps

Info

Publication number
GB902646A
GB902646A GB3735357A GB3735357A GB902646A GB 902646 A GB902646 A GB 902646A GB 3735357 A GB3735357 A GB 3735357A GB 3735357 A GB3735357 A GB 3735357A GB 902646 A GB902646 A GB 902646A
Authority
GB
United Kingdom
Prior art keywords
liquid
boiler
cylinder
vapours
nov
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
GB3735357A
Inventor
Henryk Wycliffe
Basil Dixon Power
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.)
Edwards High Vacuum Ltd
Original Assignee
Edwards High Vacuum Ltd
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 Edwards High Vacuum Ltd filed Critical Edwards High Vacuum Ltd
Priority to GB3735357A priority Critical patent/GB902646A/en
Publication of GB902646A publication Critical patent/GB902646A/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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

902,646. Diffusion pumps. EDWARDS HIGH VACUUM Ltd. Nov. 7, 1958 [Nov. 29, 1957], No. 37353/57. Class 71. The working vapour of a diffusion pump is supplied by a boiler comprising a vertical or inclined heated surface down which liquid is caused to flow and is vaporized, the liquid being evenly distributed to the top of the surface. In the boiler shown in Fig. 2 the wall is formed from a cylinder 7 provided with grooves 8 along which the film of liquid flows. A heating element 9 is housed in the cylinder 7 and heats the surface causing the liquid to vaporize and pass through pipe 10 to the nozzle of the diffusion pump. The liquid is supplied by a pipe 5 to a channel 6 and this overflows to pass down the cylinder, unvaporized liquid is returned to a supply tank through an outlet 13. A second heater 21 may be provided to heat the bottom 20 of the boiler. The vapours may be divided and be fed to separate nozzles as in Fig. 4 (not shown). In the embodiment shown in Fig. 5 the inclined heated surface 28 delivers vapours to two outlets 29, 31. The boiler may comprise two heated surfaces in which the less volatile vapours are allowed to condense and are delivered for revaporation on the second surface as in Fig. 6 (not shown). Several pumps each having suitable boilers may be arranged in series. Specification 734,757 is referred to
GB3735357A 1957-11-29 1957-11-29 Improvements in or relating to vapour jet vacuum pumps Expired GB902646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3735357A GB902646A (en) 1957-11-29 1957-11-29 Improvements in or relating to vapour jet vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3735357A GB902646A (en) 1957-11-29 1957-11-29 Improvements in or relating to vapour jet vacuum pumps

Publications (1)

Publication Number Publication Date
GB902646A true GB902646A (en) 1962-08-09

Family

ID=10395813

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3735357A Expired GB902646A (en) 1957-11-29 1957-11-29 Improvements in or relating to vapour jet vacuum pumps

Country Status (1)

Country Link
GB (1) GB902646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110393435A (en) * 2019-08-13 2019-11-01 陕西科弘实业发展有限公司 Quick steaming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110393435A (en) * 2019-08-13 2019-11-01 陕西科弘实业发展有限公司 Quick steaming device

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