GB294538A - - Google Patents

Info

Publication number
GB294538A
GB294538A GB20994/28A GB2099428A GB294538A GB 294538 A GB294538 A GB 294538A GB 20994/28 A GB20994/28 A GB 20994/28A GB 2099428 A GB2099428 A GB 2099428A GB 294538 A GB294538 A GB 294538A
Authority
GB
United Kingdom
Prior art keywords
pressure
groove
above atmospheric
rest
prevent leakage
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
GB20994/28A
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
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 Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Publication of GB294538A publication Critical patent/GB294538A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/04—Sealings between relatively-stationary surfaces without packing between the surfaces, e.g. with ground surfaces, with cutting edge

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

294,538. Akt.-Ges. Brown, Boveri, et Cie. July 25, 1927, [Convention date]. Joint-making packing.-In order to prevent leakage at the flange joints of refrigerating or other vacuum apparatus, two grooves are provided at the abutting surfaces, the inner groove e being supplied with the working gas and the outer groove f being maintained at a pressure slightly below atmospheric. The groove e is connected to a point in the apparatus at a pressure above atmospheric, or, if there is no pressure above atmospheric, to the point of highest pressure. In the latter case the pressure of the supply to the groove e is preferably raised by means of a compressor wheel or jet apparatus. In order to prevent leakage of air into the interior when the apparatus is at rest the volumes of the spaces in the plant are preferably so chosen that the gas pressure when the apparatus is at rest is above atmospheric.
GB20994/28A 1927-07-25 1928-07-19 Expired GB294538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE294538T 1927-07-25

Publications (1)

Publication Number Publication Date
GB294538A true GB294538A (en) 1929-07-11

Family

ID=31894082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20994/28A Expired GB294538A (en) 1927-07-25 1928-07-19

Country Status (1)

Country Link
GB (1) GB294538A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133561A (en) * 1990-02-26 1992-07-28 Tokyo Electron Limited Sealing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133561A (en) * 1990-02-26 1992-07-28 Tokyo Electron Limited Sealing device

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