CH445231A - Balanced valve - Google Patents

Balanced valve

Info

Publication number
CH445231A
CH445231A CH1123665A CH1123665A CH445231A CH 445231 A CH445231 A CH 445231A CH 1123665 A CH1123665 A CH 1123665A CH 1123665 A CH1123665 A CH 1123665A CH 445231 A CH445231 A CH 445231A
Authority
CH
Switzerland
Prior art keywords
passages
valve
extension
suction
obturator
Prior art date
Application number
CH1123665A
Other languages
French (fr)
Inventor
William Angelery Henri
Original Assignee
Angelery Henry William
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
Priority claimed from US38856164 external-priority patent/US3213887A/en
Application filed by Angelery Henry William filed Critical Angelery Henry William
Publication of CH445231A publication Critical patent/CH445231A/en

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Description

Vanne equilibree Balanced valve

La brevet principal a pour objet une vanne Cquili bree c'est-ä-dire comprenant un obturateur comportant un prolongement tubulaire traversant 1'ouverture du sie ge en laissant un Passage lateral par rapport ä celui-ci et en s'6tendant vers 1e passage de sortie et au moins une ailette inclin6e s'etendant ext & ieurement ä partir du prolongement, des ouvertures et des orifices 6tant formes dans 1e prolongement tubulaire sur les cötds opposes de chaque ailette et 1'orifice etant soumis du cöt6 Passage de sortie ä 1'action d'aspiration du fluide s'ecoulant 1e long du pro:longement sur 1e cöt6 du pas, sage de sortie de 1'ailette. The main patent relates to a balanced valve, that is to say comprising a shutter comprising a tubular extension passing through the opening of the seat, leaving a lateral passage in relation to the latter and extending towards the first passage. outlet passage and at least one sloping fin extending outwardly from the extension, openings and orifices being formed in the tubular extension on opposite sides of each fin and the orifice being subject to the side of the outlet passage at 1 the suction action of the fluid flowing along the first pro: lengthening on the first side of the pitch, wise exit of the fin.

La vanne de la fig. 1, qui est d6crite dann 1e brevet principal, comprend un piston 10 actionn6 par une membrane, non represent6e, qui est deformee par la Pression d'un fluide pour commander 1'eco lement d'un fluide Jans une canalisation raccordee ä des passages 14, 15 du corps de la vanne. Un guide-obturateur 21 est mont6 Jans 1e corps de la vanne @et un obturateur 28 de forme cylindrique comporte une täte 29 dont 1e bord p6riph6rique vieret porter sur 1e siege d'obturation 19 pour fermer la vanne. The valve of fig. 1, which is described in the main patent, comprises a piston 10 actuated by a diaphragm, not shown, which is deformed by the pressure of a fluid to control the flow of a fluid through a pipe connected to passages 14 , 15 from the valve body. A shutter guide 21 is mounted on the body of the valve and a shutter 28 of cylindrical shape has a head 29, the peripheral edge of which bears on the shutter seat 19 to close the valve.

Une soupape 34 est mant6e ä 1'intdrieur de la cham bre C constituant un corps de soupape et elle est re poussee par un ressart, contre 1e pourtour d'un Passage 36 de la täte 29 de 1'obiurateur. A valve 34 is mounted inside the chamber C constituting a valve body and it is pushed back by a spring, against the periphery of a Passage 36 of the head 29 of the obiurator.

Un priment tubulaire 38 autour duquel sont agenc@es des ailettes comporte un ou plusieurs passa ges d'aspiration 46 ä travers lesquels 1'aspiration par 1e fluide Passant par 1'obturateur et 1e siege 19 egali se rapidement la Pression dans les cätes opposds. de 1'obturateur pour 1e stabiliser contre les effets de 1'as piration du fluide traversant la vanne. A tubular primer 38 around which fins are arranged has one or more suction passages 46 through which suction by fluid passing through the obturator and seat 19 quickly equalizes the pressure in the opposite sides. of the obturator to stabilize it against the effects of the suction of the fluid passing through the valve.

En plus, de 1'aspiration par 1e fluide qui tend ä rendre la vanne instable et dont 1'acdon est empächde par les passages 46, 1'6coulement du fluide engendre des forces additonn.elles qui tendent ä eloigner 1'obtu- rateur de son siege, c'est ä-clire ä comprimer 1e res- sort qui repousse cet obturateur vers son siege ; la neutralisation de ces forces est assur6e en Partie par les ailettes montees sur 1e prolongement 38, et de plus une s6rie d'orifices d'impact 49 sont mdnagds au-d'essous des ailettes pour former des passages de fluide au-des- sous de ce-lles-ci. La force d'impact du fluide sur les ailettes provoque son Passage ä travers lies orifices 49, ce qui augmente la Pression derriere la täte 38 de 1'ob- turateur, cette force s'ajoutant ä celle du ressort de rappel de 1'obturateur pour neutraliser les forces d'im- pulsions de reaction de recompression et d'expansion. In addition to the fluid suction which tends to make the valve unstable and the action of which is impeded by the passages 46, the fluid flow generates additional forces which tend to pull the plug away from the valve. its seat is to compress the spring which pushes this shutter towards its seat; the neutralization of these forces is provided in part by the fins mounted on the extension 38, and in addition a series of impact ports 49 are provided below the fins to form fluid passages below. of these. The force of impact of the fluid on the vanes causes it to pass through the orifices 49, which increases the pressure behind the head 38 of the shutter, this force being added to that of the return spring of the shutter. to neutralize the forces of reaction impulses of recompression and expansion.

Le.s passages d'aspiration 46 et les orifices d'impact 49 ont des dimensions permettant d'obtenir la stabilit6 neces:s:aire. En ajustant lie rapport des, dimensions des passages 46 et des orifices 49, an peut obtenir une va- riation arithm6tique du d6bit de la vanne au lieu dune variation g6om6trique de ce d6bit. Dans un exemple pratique valable dans de nombreuses conditions, les passages d'obturation 46 peuvent avoir un diametre d'environ 4 fois 1c diametre des orifices d'impact 49. Pour des diff6rences de Pression importantes, 1e rapport peut "eire inferieur et pour des diffirences de Pression reduites, il doit ätre inferieur ä 4/1. The suction passages 46 and impact ports 49 are sized to achieve the necessary stability. By adjusting the ratio of the dimensions of the passages 46 and the orifices 49, an arithmetic variation of the flow rate of the valve can be obtained instead of a geometric variation of this flow rate. In a practical example valid under many conditions, the blocking passages 46 may have a diameter of about 4 times the diameter of the impact ports 49. For large pressure differences, the ratio may be lower and for pressure differences reduced, it must be less than 4/1.

Le pr6sent brevet additionnel a pour objet une van- ne equilibr6e selon la revendication du brevet principal, caractiris6e en. ce que 1e prolongement <B>d</B>e 1'obturateur est uruni dun organe pourvu de passages d'aspiration et d'orifices permettant de regler les dimensions des passages et des orifices de 1'obturateur. This additional patent relates to a balanced valve according to the claim of the main patent, characterized in. that the first extension <B>d</B> e 1'obturateur is uruni dun member provided with suction passages and orifices for adjusting the dimensions of the passages and 1'obturator orifices.

Une forme d'exdcution de la vanne objet de 1'inven- tion est dichte, ä titre d'exemple, en se referant au des- sin annexd sur lequel La fig. 2 est une coupe longitudinale partielle de la vanne. Comme an 1e voit sur la fig. 2, un rnanchon 55 en forme de coupelle inversee est agence pour tourner sur le prolongement 38 de 1'obturateur 28 et il est muni d'ouvertures 56 dont les dimensions pt les positions correspondent aux passages d'aspiration 46. One embodiment of the valve which is the subject of the invention is shown, by way of example, with reference to the appended drawing in which FIG. 2 is a partial longitudinal section of the valve. As seen in fig. 2, a sleeve 55 in the form of an inverted cup is arranged to rotate on the extension 38 of the obturator 28 and it is provided with openings 56 whose dimensions and positions correspond to the suction passages 46.

La rotation du manchon 55 permet aux ouvertures 56 d'etre amenees en face et de coincider avec les pas- sages 46 ou d'etre partiallement align & s sur ces pas- sages et de les obturer partiellement. Ainsi, la dimension effective des passages 46 et le rapport des surfaces des orifices d'impact 49 ä celles des passages d'aspiration 46 peut eire regle ä volonte Jans les limites comprises entre 1/2 et 20/1. The rotation of the sleeve 55 allows the openings 56 to be brought in front and to coincide with the passages 46 or to be partially aligned with these passages and to block them partially. Thus, the effective size of the passages 46 and the ratio of the areas of the impact ports 49 to those of the suction passages 46 can be adjusted at will within the limits comprised between 1:2 and 20:1.

Des fentes courbes 57 m6nagdes dans la tete 58 du manchon 55 portent des vis 59 mont6es dans la tete du prolongement 38 pour permettre une fixation du manchon 55 dans la position r6glee voulue. La disposi- tion & crite permet la reahsation d'un obturateur qui West par affectde par les variations de la pression et du debit traversant la vanne. Curved slots 57 m6nagdes in the head 58 of the sleeve 55 carry screws 59 mont6es in the head of the extension 38 to allow fixing of the sleeve 55 in the desired adjusted position. The written arrangement allows the reahsation of an obturator which is affected by the variations of the pressure and the flow passing through the valve.

Claims (1)

REVENDICATION Vanne equilibree selon la revendication du brevet principal, caracterisee en ce que 1e prolongement de 1'obturateur est muni d'un Organe pourvu de passages d'aspiration et d'orifices permettant de rdgler les di- mensions des passages et les orifices de 1'obturateur. SOUS-REVENDICATION Vanne selon la revendication, caracteris6e par un manchon rotatif monte sur le prolongement de 1'obtu- rateur, servant d'organe de r6glage des passages d7as- piration, qui comporte des fenetres correspondant aux passages d'aspiration et pouvant etre amen6es sofft ä coincider avec celles-ci, sofft ä les obturer partiellement ou entierement. CLAIM Balanced valve according to the claim of the main patent, characterized in that the extension of the obturator is provided with a member provided with suction passages and orifices making it possible to adjust the dimensions of the passages and the orifices of 1 'shutter. SUB-CLAIM Valve according to claim, characterized by a rotary sleeve mounted on the extension of the obturator, serving as a member for adjusting the suction passages, which comprises windows corresponding to the suction passages and which can be brought sofft to coincide with these, sofft to block them partially or entirely.
CH1123665A 1962-08-15 1965-08-10 Balanced valve CH445231A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21710162A 1962-08-15 1962-08-15
US38856164 US3213887A (en) 1964-08-10 1964-08-10 Dynamically balanced valve

Publications (1)

Publication Number Publication Date
CH445231A true CH445231A (en) 1967-10-15

Family

ID=26911622

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1123665A CH445231A (en) 1962-08-15 1965-08-10 Balanced valve

Country Status (1)

Country Link
CH (1) CH445231A (en)

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