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GB809379A - Improvements in or relating to vapour-operated vacuum pumps - Google Patents

Improvements in or relating to vapour-operated vacuum pumps

Info

Publication number
GB809379A
GB809379A GB2390356A GB2390356A GB809379A GB 809379 A GB809379 A GB 809379A GB 2390356 A GB2390356 A GB 2390356A GB 2390356 A GB2390356 A GB 2390356A GB 809379 A GB809379 A GB 809379A
Authority
GB
United Kingdom
Prior art keywords
casing
cooling
pool
level
vapour
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
GB2390356A
Inventor
Gordon Powell Gerow
Raymond Joseph Weeks
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.)
Consolidated Electrodynamics Corp
Original Assignee
Consolidated Electrodynamics Corp
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 Consolidated Electrodynamics Corp filed Critical Consolidated Electrodynamics Corp
Priority to GB2390356A priority Critical patent/GB809379A/en
Publication of GB809379A publication Critical patent/GB809379A/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)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

809,379. Injectors. CONSOLIDATED ELECTRODYNAMICS CORPORATION. Aug. 2, 1956, No. 23903/56. Class 71. Cooling of the pool of working liquid 15 at the bottom of the casing 2 of a high vacuum diffusion pump at the end of an operating period is effected by passing cooling liquid e.g. tap water through a conduit 52 located near the level 16 of the pool and having its inlet and outlet 54, 53 outside the casing. As shown the cooling conduit comprises a flat spiral just below the level 16 and in operation cooling water is passed therethrough after switching off heaters 50 located below the bottom plate 12 of the casing 2 at the end of the cooling period a valve 11 is opened to admit atmospheric pressure to the pujp casing in which are located high intermediate and low pressure annular nozzles 25, 40 and 35.
GB2390356A 1956-08-02 1956-08-02 Improvements in or relating to vapour-operated vacuum pumps Expired GB809379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2390356A GB809379A (en) 1956-08-02 1956-08-02 Improvements in or relating to vapour-operated vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2390356A GB809379A (en) 1956-08-02 1956-08-02 Improvements in or relating to vapour-operated vacuum pumps

Publications (1)

Publication Number Publication Date
GB809379A true GB809379A (en) 1959-02-25

Family

ID=10203176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2390356A Expired GB809379A (en) 1956-08-02 1956-08-02 Improvements in or relating to vapour-operated vacuum pumps

Country Status (1)

Country Link
GB (1) GB809379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414650A1 (en) * 1978-01-17 1979-08-10 Varian Associates DIFFUSION PUMP FOR LEAK DETECTORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414650A1 (en) * 1978-01-17 1979-08-10 Varian Associates DIFFUSION PUMP FOR LEAK DETECTORS

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