BE366431A - - Google Patents
Info
- Publication number
- BE366431A BE366431A BE366431DA BE366431A BE 366431 A BE366431 A BE 366431A BE 366431D A BE366431D A BE 366431DA BE 366431 A BE366431 A BE 366431A
- Authority
- BE
- Belgium
- Prior art keywords
- dust
- grooves
- contact surfaces
- contact
- desc
- Prior art date
Links
- 239000000428 dust Substances 0.000 claims description 7
- 210000000614 Ribs Anatomy 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Description
<Desc/Clms Page number 1>
"Dispositif pour surfaces de contact d'organes obturateurs et guides d'organes mobiles".
Dans la marche de moteurs et d'appareils dans les- quels on utilise des substances pulvérulentes ou contenant des poussières, il risque de se fixer de la poussière entre les surfaces de contact des organes obturateurs ou entre les par- ties mobiles et leurs guides, etc. ce qui provoque des dé- fauts d'étanchéité des soupapes ou organes de fermeture, ou des coincements, des échauffements et des blocages des par- ties mobiles dans leurs guides.
On a cherché à éliminer ces inconvénients en don- nant une forme tranchante aux surfaces de contact des sou- @
<Desc/Clms Page number 2>
papes et en employant des procédés de nettoyage ou de balayage spéciaux des surfaces de contact et de guidage.
Or on a trouvé que les perturbations mentionnées ci-dessus qui se produisent aux surfaces de contact et de guidage, etc., peuvent être évitées de façon simple lors- qu'on subdivise ces surfaces par des rainures dans lesquelles la poussière qui pourrait pénétrer peut se fixer, sans entra- ver le fonctionnement des organes en question. Cela suppose une disposition rigide des côtes entre chacune des rainures.
La figure 1 représente schématiquement à sa partie inférieure un mode d'exécution du présent procédé appliqué à une soupape tronconique 1, dont le siège 2 présente les rainures 3 dans lesquelles la poussière qui pourrait se trouver entre les surfaces de contact peut se déposer lors de la fermeture, sans nuire à l'étanchéité. On peut naturel- lement ménager des rainures aussi dans le plateau de la sou- pape ou seulement dans cet organe.
Un deuxième mode d'exécution du présent procédé est représenté schématiquement à la partie supérieure de cette même figure, au passage de la tige de la soupape dans un guide muni d'un presse-étoupe. La tige de la soupape 1 est guidée par la douille 4 qui présente des rainures 5 dans le sens de l'axe (voir coupe A-B Figure II), dans lesquelles la poussière qui pourrait avoir pénétré peut se fixer sans gêner en aucune façon le travail de la soupape.
<Desc / Clms Page number 1>
"Device for contact surfaces of obturator members and guides of movable members".
In the operation of engines and devices in which powdery or dust-containing substances are used, there is a risk of dust settling between the contact surfaces of the shut-off members or between the moving parts and their guides, etc. which causes leaks in the valves or closing members, or jamming, heating and blocking of the moving parts in their guides.
An attempt has been made to eliminate these drawbacks by giving a sharp shape to the contact surfaces of the supports.
<Desc / Clms Page number 2>
papes and employing special cleaning or sweeping methods of the contact and guide surfaces.
However, it has been found that the above-mentioned disturbances which occur at the contact and guide surfaces, etc., can be avoided in a simple way when these surfaces are subdivided by grooves into which the dust which could penetrate can. settle down, without hindering the functioning of the organs in question. This assumes a rigid arrangement of the ribs between each of the grooves.
FIG. 1 diagrammatically shows in its lower part an embodiment of the present method applied to a frustoconical valve 1, the seat 2 of which has the grooves 3 in which the dust which could be found between the contact surfaces can be deposited during closure, without compromising the seal. Of course, grooves can also be made in the valve plate or only in this member.
A second embodiment of the present method is shown schematically in the upper part of this same figure, where the valve stem passes through a guide provided with a stuffing box. The valve stem 1 is guided by the sleeve 4 which has grooves 5 in the direction of the axis (see section AB Figure II), in which the dust which may have penetrated can be fixed without in any way hindering the work. of the valve.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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BE366431A true BE366431A (en) |
Family
ID=38573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE366431D BE366431A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE366431A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327471A1 (en) * | 1975-10-08 | 1977-05-06 | Kureha Chemical Ind Co Ltd | FLOW ADJUSTMENT VALVE FOR HOT BITUMEN OR OTHER HIGHLY VISCOUS LIQUID |
FR2423425A1 (en) * | 1978-04-22 | 1979-11-16 | Bergwerksverband Gmbh | GAS-TIGHT SHUTTER DEVICE |
-
0
- BE BE366431D patent/BE366431A/fr unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327471A1 (en) * | 1975-10-08 | 1977-05-06 | Kureha Chemical Ind Co Ltd | FLOW ADJUSTMENT VALVE FOR HOT BITUMEN OR OTHER HIGHLY VISCOUS LIQUID |
FR2423425A1 (en) * | 1978-04-22 | 1979-11-16 | Bergwerksverband Gmbh | GAS-TIGHT SHUTTER DEVICE |
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