BE509445A - - Google Patents

Info

Publication number
BE509445A
BE509445A BE509445DA BE509445A BE 509445 A BE509445 A BE 509445A BE 509445D A BE509445D A BE 509445DA BE 509445 A BE509445 A BE 509445A
Authority
BE
Belgium
Prior art keywords
core
recess
cushion
valve
cushions
Prior art date
Application number
Other languages
French (fr)
Publication of BE509445A publication Critical patent/BE509445A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08Details
    • F16K5/14Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/18Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
    • F16K5/188Sealing effected by the flowing medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0457Packings
    • F16K5/0478Packings on the plug

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)
  • Lift Valve (AREA)

Description

       

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  ROBINET PERFECTIONNE. 



   Dans le brevet Noo 506   471   il a été décrit un robinet à boisseau et carotte, dont la carotte est équipée d'éléments d'étanchéité en caout-   chouc synthétique ou matière plastique élastique équivalente ; carot-   te est munie de part et d'autre du passage central de blocs ou coussins en caoutchouc encastrés dans le métal et la face externe de ces coussins, bien usinée, forme joint étanche avec le boisseau, tant dans le sens axial de la carotte que dans le sens axial des passages du boisseau, le robinet étant ouvert ou fermé. 



   La présente invention consiste en un perfectionnement à ce ro- binet et consiste'notamment à créer sur la face interne des dits coussins, face rapprochée, de l'axe de la carotte, un évidement substantiel qui crée un espace occlus entre le coussin et le fond du logement usiné dans la   ca--   rotte, ledit évidement communiquant avec l'extérieur de la carotte par un forage   de,section   convenable, la disposition étant telle que le robinet étant fermé, le fluide sous pression pénétrant dans le boisseau remplit l'évidement du coussin respectif, de façon à provoquer une expansion du coussin et par conséquent un joint étanche aux faces de contact entre carot- te et boisseau. Cet évidement peut avoir une forme quelconque, mais une forme en section ou calotte de sphère est préférable. 



   La figure du dessin annexé montre en coupe le robinet perfection- né selon l'invention. 



   Les coussins 1 sont évidés en 2 au fond de leur logement d'en- castrement et un forage 3 dans le coussin débouchant dans l'évidement en sens axial, peut mettre ledit évidement en communication avec le passage d'un raccord de boisseau, quand le robinet est fermé. L'effet technique ainsi obtenu est évident par lui-même.



   <Desc / Clms Page number 1>
 



  PERFECTED TAP.



   In the patent Noo 506 471 it has been described a plug-and-sprue valve, the sprue of which is equipped with sealing elements made of synthetic rubber or equivalent elastic plastic material; core is provided on either side of the central passage with blocks or rubber cushions embedded in the metal and the external face of these cushions, well machined, form a tight seal with the plug, both in the axial direction of the core than in the axial direction of the valve passages, the valve being open or closed.



   The present invention consists of an improvement in this valve and consists in particular in creating on the internal face of said cushions, face close to the axis of the core, a substantial recess which creates an occluded space between the cushion and the core. bottom of the housing machined in the casing, said recess communicating with the outside of the core by a borehole of suitable section, the arrangement being such that the valve being closed, the pressurized fluid entering the valve fills the recess of the respective cushion, so as to cause expansion of the cushion and therefore a tight seal at the contact faces between core and plug. This recess can have any shape, but a sectional shape or sphere cap is preferable.



   The figure of the attached drawing shows in section the improved valve according to the invention.



   The cushions 1 are hollowed out at 2 at the bottom of their castration housing and a bore 3 in the cushion opening into the recess in the axial direction, can put said recess in communication with the passage of a plug connection, when the tap is closed. The technical effect thus obtained is obvious by itself.


    

Claims (1)

REVENDICATIONS. CLAIMS. 1. Robinet selon le brevet No. 506 471, dans lequel il est pré- vu sur le face interne des coussins d'étanchéité, face rapprochée de l'axe de la carotte, un évidement substantiel qui crée un espace occlus entre le coussin et le fond de son logement usiné dans la carotte, ledit évidement communiquant avec l'extérieur de la carotte par un forage de section con- venable,la disposition étant telle que, le robinet étant fermé, le fluide sous pression pénétrant dans le boisseau remplit l'évidement du coussin res- pectif, de façon à provoquer une expansion du coussin et par conséquent un joint plus étanche aux faces jointives entre carotte et boisseau. 1. Valve according to patent No. 506,471, in which there is provided on the internal face of the sealing cushions, face close to the axis of the core, a substantial recess which creates an occluded space between the cushion and the bottom of its housing machined in the core, said recess communicating with the outside of the core by a borehole of suitable cross section, the arrangement being such that, with the valve closed, the pressurized fluid entering the valve fills the 'recess of the respective cushion, so as to cause an expansion of the cushion and therefore a more tight seal at the contiguous faces between core and plug. 2. Robinet selon la revendication 1, dans lequel l'évidement des coussins,est en forme de section ou calotte de sphère. 2. Valve according to claim 1, wherein the recess of the cushions is in the form of a section or sphere cap.
BE509445D BE509445A (en)

Publications (1)

Publication Number Publication Date
BE509445A true BE509445A (en)

Family

ID=148867

Family Applications (1)

Application Number Title Priority Date Filing Date
BE509445D BE509445A (en)

Country Status (1)

Country Link
BE (1) BE509445A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155947B (en) * 1960-01-26 1963-10-17 Otto Meyer Sealing ring for shut-off devices, especially for high pressures
DE1235086B (en) * 1958-11-14 1967-02-23 Rockwell Mfg Co Shut-off device such as a cock or slide valve
FR2334029A1 (en) * 1975-12-02 1977-07-01 Rockwell International Corp CYLINDRICAL SWIVEL VALVE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235086B (en) * 1958-11-14 1967-02-23 Rockwell Mfg Co Shut-off device such as a cock or slide valve
DE1155947B (en) * 1960-01-26 1963-10-17 Otto Meyer Sealing ring for shut-off devices, especially for high pressures
DE1164782B (en) * 1960-01-26 1964-03-05 Otto Meyer Sealing ring for shut-off devices, in particular for high pressures, which is guided in a blind hole, preferably of the closure piece, to be displaceable in the direction of flow
FR2334029A1 (en) * 1975-12-02 1977-07-01 Rockwell International Corp CYLINDRICAL SWIVEL VALVE

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