US1530858A - Control valve - Google Patents

Description

J. W. SHAW common VALVE March -24.. 1925.

Filed March 5, 1924 2 sheets-sham 2 Patented Mar. 24', llZEiq JQHNW. siiAW,l or BROOKLYN., N Ew aromi.

CONTR/0L Anuman, filed. March 3;.1924- .Serial- .Nof www To all whom tpm/y o micewt:

Be it known that` I, .loi-IN lV. Sin/iw, a

citizen. ozlthe ,Unitedrftatesx residing at Brooklym in the Countyy ofil Kings and State of Newy Yorlnuh'ave invented .eertain" heimV .and usefulV Improvementsin fa Qontrol- Valve, oi which the following ils a speeilicaf tien. This .intention relates. tof-an unipr-eyed,

.',Which embodies a .e

. ,With a, single operation lthe:quantity supply ried ot the mediato'fth'e burner maybe IWithoutchanging.the ratio.

tant .object `of `this A further nd Viinp invention'V is the prov.i `s i`o'nl oi a control apparatus of the `z illlotwe; nineiitioned feharaeter eetlpriififcipleletv port Vand Anaive "design" iii order 'to ,aeeoihplish control apparatus for, .regulating the quan *L tity and ratio flow oi@ 1 rions inedia,

The primary obleet kof .this inventien is lthe..provision of a novel iegiilatiiigialve,

` ineehanisin ycapable" oi'lieingeasily operated for accurately Controllingthe flowfof fuel.

`and an atoinizingY fluid to a burner, for the..

maintenance of an eliieientratio or iniiiture` 'of the fuel and atoinzingiluidindependa ent ofthe deinaiid-fottlie burner i unit` in order tol maintain smokeless .combustion g..

save. fuel; eliiniiraite 'furnace 2and unit ref! pairs, and for enablingan expeditious adjustinentto provide thepropenratio of the. .,ii'iedia controlled thereby.'

At the presenttiine. in.. industries,Where voil is utilized as tuehniaiious lournersare` used.. and in peiinection .with the.. atoinizy inn# of this fuel hynieansof a ifluicl s uch assteain, air orI gas.I it isneeessary to'jcontrol the supply of fuel andi atoniizing' fluid by means oit separate. control.Valves;` one lgioiiei-ninii4 the atoinizingib iiuich and, the .other znoverning the oil supply. These .tluidsinust`4 liegfed in propeimratio to ,the Illournerf;- the s ratio of. flow depending' uponltheindividual f characteristics ofthe burner.; l Theratio is .feed ei? .the finedia isi always ,eonstant. and

at the hestdiilieult to .cleterniine,`anlatter the .Conventional Icent-rol Valves have heenlproperly` set to .obtain theratiol.theyoani `not he disturbed ifthere is adeinandor ater heat Qilessheatland inaiiitainsaid iatioof` media.- ln, other Words, `with the oonx'entional in anner of 4regulating the flowV ot the media `an increased or ,deeijeased quantity dei'nand .cannot he niet Without desat-roving' the ratio-of media being suppliedl` to the vburneinq;` lith theiinpioved.Qontrol apparatus hereindeseribed it is .net neoessarjl1 furthe operator to `payl. continual-attention..y andlexperiinent WithadJusting.: ot.v

tlievalves inorder to,.arrive at a .correct v l unit the letter A, may.. gener allyH C lesignate ratio of the inedia Whenever the demand,` on .the unit lired is Changed. The natio 0i views vari'alole feed .ofseveral,media always using thefsainelratio Ojinediafused. '-.Qther l -Qbjets and ac lantagesf. of lthis in# vention will he`- apparent'. during thev vcourse of the.following,,detailed description.

Iirthe ,a eoinpaiiyiiigdrawings7 forming a .pa t of tliis'. speei`ieation,` and. wherein sii'nilai; referenee. charagetersgdesignfate oorrespoiiding parts throughout 4the"v several rvFigure .1 is a.

tailsitliereof. 4

Fig., 2 is. side elevation. of themunits vill usftiiated in Figure vl.

3i `ausross, seetional` `View taken Vsulostantially i Orti the line Sie-3,. f Figure 2 anfdishoiiving non Eeratingvaline features of` the invention. i 5

4; a transversepoross seetional View talienuhstantiallyf on thehne of Fig- `.nre l.

'1F10 5 is a `eross seetionahyieWtaken ,substantially on theline 5 -5ro'f-Figure l..

'. 6V is "al .Cross sectional ,View taken ``.sulosta ntially onthe v line 6.46 o ifFigure 2.

.front elevation v f thewinr proved `controlunit s liowingfnopper ingk de- Fig Y. is 'aiperspeetive'yieiy'of afiiovel olf'yalfe ineniherused in pairs in each oi the unitsv for,`.iefleeting` ,the control or l new, of media tej the oil.` lourner.q

Fig. 8 is airagnientary ,crossseetional iuiew alien through a: iuijnaeef` shoiiing the .poop ating of oil' huifneifv app aiiatusnwith 4which theinipijo-ifed iQontrol unit is sed, and i isl a' ydiaoraininatie representation ofv the 4,manner in` l'iieh. l thel. eilteetiije-v 4 open area` oit the portsy of ythe lo ontrolgunitiiiiay be, maintained in.. orlder' to J V .predetermined ratio.

i "In A the'. drawings .ferred einloodiinent of the iinprovedQontrol 10o n eijateat a and C which respectively contain supplies of an atonnzlng fluid and oil for the proper supply of these media to an oil burner D; Vthe parts A, B, C and D, of course, being used in connection with a furnace E.

The lines B 4and C contain their respective valves 15 and 16, and a clean out valve 17 is preferably positioned in a pipe connection 13 which extends from lthe line C to the line B. The control unit A is positioned so that the lines B and C enter it between the burner D and the connecting pipe 18.

Referring` specifically to the unit A the same comprises aihousing valves 12 and 13; means 14 for connecting said valves for simultaneous adjustment for quantity regu lation of the fuel and atomizing media and i means for each of the valves 12 and 13 to enable said valves 12 and 13 to be independently adjusted for varying the ratio in which the fuel and atomizing media may be fed to the burner.

The housing 10 is constructed of metal in rectangular or other formation, providing a pair of vertically arranged chambers 2O and 21 therein wherein. the valves 12 and 13 are respectively mounted for adjustment by the means 14 and 15, as will be subsequently described. These chambers 2O and 21 are of cylindrical formation and are arranged with their axes parallel. The housing is provided at opposite sides thereof with pipe connecting extensions 25, wherein i are connect-ed the sections ofthe pipes B andC. Transverse: passageways 27 and are arranged through the housing 10, 1n 1n ytersecting relation respectively with the valve chambers 2O and 21. The passageways 27 and23 are of relatively great diameter, and these passageways are reduced at one side of the chambers and 21 to provide shoulders wherein are positioned square or rectangularly formed ports 30 and 31 for the chambers 2O and 21 respectively. These ports 30 and 31 lie in the same hori- Zontal plane and are of exactly the same length. Vxlhile they have been shown. as square, one or both may be rectangularly formed, and the ripper and lower edges 32 and 33 respectively of. each ofthese ports are parallel and horizontally positioned, with the side edges 34 and 35 parallel witl each other and vertically positioned.

The valves 12 and 13 are of identical construction and each includes a novel valve head 36 and a stem 37. The valve head 3G for each valve construction. .12 and 13 includes a cylindrical shaped body or piston portion 37a having a top fiat surface 3S and a lower `fiat surface 39 parallel with the surface 33; a passageway 40 being provided through this valve body 37a for receiving an end ofthe valve stem 37 and to which it is connected by means of a cross pin 41, sub

stantially as is illustrated in Figure 3 of the drawings. The valve head 36 for each valve construction furthermore consists of a segment 42 formed in a depending relation from the body 37a so that the convex or arcuate outer surface of the segment lies flush with the circumference of the body portion 37a. The side edges 43 of the segment 42 may beaptly characterized as cut ofll edges, as they cooperate in regulating the proper ratio of the media fed through the ports 30 and 3l,l and as will ybe subsequently mentioned.

The stems 37' of the valve constructions `12 and 13 extend upwardly through the chambers 20 and 21 in an axial relation in said chambers and extend in slidable relation through suitable glands 45 and 46 detachably provided in ythe upper ends of the chambers 2O and 21 respectively. These glands may each consist of a nut 48 adapted to be screw threaded in the top of a chamber for compressing a gasket 49 about the top of this chamber to prevent seepage of a fluid from the chamber. The valve stem 37 extends upwardly through the nut 43 and the nut is hollow to receive a packing material 50 disposed about the `valve stem 37. The gland body 51 is in the form of a nut adapted to be threadably received in thenut 48 to compress the packing 50 about 'the stem 37 so that the stem 37 as it slides through the gland structure will have a fluid tight connection and the media will be prevented from flow or leakage, notwithstanding the fact that it may be under pressure. The valve stems 37 below their upper ends are each provided with a collar integral therewith, and at the upper ends of each of said stems 37 a bracketinember 54 may be detachably connected t-o each of said valve stems by means of a transverse pin 55.

Referring to the means 14 for the mounting of said valve constructions 12 and 13 by means of which they may be simultaneously moved longitudinally of the chambers in which they are disposed, this means 14 consists of aregulating stem provided with a screw threaded end 61 adjustableI within a tapped opening G2 in the body of the housing 10 between the chambers 20 and 21 of said housing; this screw threaded or tapped opening 62 being parallel with the chambers 20 and 21. The stem of the adjusting member G0 is provided with a pair of spaced collars G4 and 65 thereon between which is supported a connector bar or niember 66.. The portion of the stem G0 between thershoulders 64 and 65 is rotatably mounted or bea-rs in a passageway provided through the connector bar 66 as a means of supporting the latter. rlhe bar 66 adjacent its ends is provided with a pair of passageways through which the stems 37 of the valve structures 12 and 13 extend; the

preventing longitudinal movement off these stems 37 with respect tothe connector bar 6G. The stem 60 upwardlythereon is `provided witha hand Wheel 70 by means of which the stem G may be rotated for feeding the same inwardly or outwardly of its scren7 threaded opening),- 6'2. I

Means for independent `adjustment of each valve `structurecomprises the bracket /l above mentioned, of L-shaped formaf ,tionand providing a vertical depending flange 'T1 which slidably receives a latch plunger 72 therethrough; the plunger 72 at its outer end supporting a thumb nut 73,

and at its inner endv having a rcollar Tit rigid therewith and providing a reduced portion 75 inwardly of the collar 74 which ,j

is adapted tofit Within'any offra series of apertures 77 provided in a segmental `piece 'i8 Which is detachably secured as by screws 79 to the connector bar 66. A spring 79a is e `compressed `intermediate the' collar 74C and the flange i71 and normally urges `the. plunger latch 72 to engage this piece T8. This construction 15 is,'ofcourse, provided for each of the valves d2, and 13, and it can vremlily 'be understood that by pulling oute wardly upon the thumbl piece 15 the end 'T5 will be Withdrawn from'an aperture` TT in the piece 7S andV by swinging or oscillating the bracket 54.- the valve head .36 will bey angularlymoved through a slight arc within its chamber 2O or 21'ofthe housing 10 for opening `or closingthe effective area of the port or 31.

' in operation., the cutter edges 11:3 of the segment 4t2 of both valves ae providedfor the purpose of adjustment across the area of the ports BO and V31 uponwregulation of said valves by the means 15. yAt this point it Will be Well to mention that in .the burning` of fuel oil there is always va greater percentagaby volume, lof the atomizing` medium than thefuel or oil, and` very rarely if ever, `is theratio less than one party of fuel to one undone-half parts of the atomizinp; medium. `All fuel'burners have indi 4vidual` characteristics and `the ratio denianded by the particular burner may vary anywhere from one to `one and one-half, to asgreat a ratio as one to fourteen. Heretofore, in the control of the fuel and atomizing,- fluids, the ratio having been properly set, if it was desiredto increase or decrease the load `on the burner for the purpose of increasing or decreasing the intensity of the heat, the ratio was destroyed. There have been valves proposed for the controlling of these media by single operation, but these control units are inefcient in that when it is desired to vary the load or quantity of to iiovv through these ports.

the atomized and `oil fuel media, therati'o or proportion of feed of the saine 4is Vdestroyed, and it is necessary forl the operator to,` reset the individual valves in order to arrive at the proper ratio to prevent improper combustion and `other .detrimental conditions.

lilith the kimproved unit A., however., the characteristic of the burner D is found, and the individual valve structures 12 and 13 set by means of their individual means 15 so that an effective area `of the `ports and 31 is exposed to permit the proper ratio of fuel and atomizing fluid The ratio of effective area of the ports' 30 and 31 having` been set, the valve structures 12 and 18 may be simultaneously adjusted by rotation of the stein to increase `or decrease the eifectivearea of the ports; 'the ratio, how ever, always remaining the `same and not being changed `when the `load upon the burner is varied. Exhaustive investigation and experiment has proven that theonly type of port which will give satisfactory results is of polygonal formation, and more specifically rectangular or square as is illustrated in the drawings by ports 30 and 31. The `segmental portiousfl?, of the valve heads 36 are used for lateral adjustment across said valve. ports to expose theproper 4the ports for lateral regulation of said ports. The lower surfaces 39 of the valve bodies 3T denote the shut-olf lines for the ports Si() and 31 upon simultaneous adjust nient of the valves `by the means 1li-v. These surfaces 39 are in the same plane and upon iaisiiigg` or lowering` of the valvel headsy 36 by theiucans lei-f thel volume of the atomiZ- ingr and fuel media may be varied Without clianging the proportion in Which these media are fed to the burner D.

The diagrammatic representation in Figure 9 shows the ports SO and 31 With their horizontal and vertical side edges and the lines denoted 18 designate the shut-olf `edges of the segmental portions 1-2 of lthe travel in the same plane to simultaneously open the ports 30 and 31 enables the proper ratio of the media to be fed to the burner and prevent premature explosion or smoky combustion. The ports are of identically pendently across their the same size and the shut-oil' edges of the valve heads are ot ident-ical format-ion for both valve constructions.

Various changes in the shape, size, and arrangement ot parts may be made to the orm of the invention herein shown and described, without departing from the spirit of this invention or the scope of the claims.

I claim:

l. As an article of manufacture a valve comprising a cylindrical shaped body portion, and a segmental portion rigid with the body portion extending outwardly from an end thereof with the arcuate tace ot said segmental portion flush with the arcuate circumference of the body portion.

2. As an article of manufacture a valve head comprising a cylindrical shaped body portion having a flat lower surface and having a segmental portion depending'lrom the flat surface of said body portion, said segmental portion providin'g side edges of straight line formation disposed at right angles to the plane of the flat surface ot said body portion.

3. In a regulator of the class described the combination ot a housing providing a pair of chambers therein and having ports communicating laterally therethrough, valves slidable in each ot' said chambers including depending segmental portions, means 'for independently moving said valves so that the segmental portions may be moved ineerespective ports for regulating the effective open arca of said ports with respect to each other in a determined ratio.v and means for moving said valves longitudinally in their chambers for opening or closing said ports without destroying the ratio oit effective opening oit said ports. j

' 4. ln a regulator of the class described the combination of a housing providing a pair ot parallel chambers vertically disposed therein, and having ports ot square formation communicating laterally through said chambers, valves each including a cylindrical portion provided with a lower horizontally disposed surface, and each ot said valves including a depending segmental portion providing a vertical side edge, means movably mounting said valves so that they may be independently adjusted in their chambers so that the segmental portions thereof may have their straight edges moved across said respective ports lor opening or closing the ports and whereby a desired ratio of effective opening of the ports may be obtained, and means for moving said valves simultaneously in their chambers so that the body portions of said valves may move upwardly or downwardly across thc ports to open or close the ports without destroying the ratio of elfective opening thereof.

5. As an article oi manufacture a valve structure consisting of a housing providing a chamber therein having a polygonal shaped porttherethrough, and a valve rotatably and longitudinally slidable in said chamber providing a valve head of cylindrical formation adapted to snugly iit for sliding relation in said chamber and providing a segmental portion rigid with said cylindrical portion and extending outwardly therefrom at an end thereof so that it may control the opening of said port by rotational movement oii the valve in said chamber.

G. In combination a housing having a port therein, and a valve rotatable and reciprocable in the housing including a body portion and a depending segmental shaped portion7 the former of which is adapted to operate across the port and the latter of which is adapted to operate across the port in transverse direction to the body portion to regulate the effective area ot said port.

i'. A valve structure consisting of a housing providing a chamber therein having a port laterally therethrough, a valve rotatably and slidably mounted in said chamber providing a valve head with means to control the area of the port both by rotary movement of the valve in said chamber and longitudinal sliding movement therein, a rod connected with the valve and extending trom said housing, an adjusting member carried by said housing, a support carried by said adjusting member within which said adjusting member is rotatably mounted so that the support will move with the adjusting member as the same is adjusted in said housing, means `rotatably supporting the valve rod on said supporting member, means carried by the supporting member providing a plurality of openings therein, means carried by the rod extending' outwardly there- `from adjacent said supporting' member, a

plunger member carried by said last mentioned means including a spring' adapted to torce the plunger member into any of the openings or' said means whereby to hold the. valve in a desired adjusted relation with respect to said port.

JOHN W. SHAV.

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