US1319502A - gilbert - Google Patents

Description

G. WRIGHT.

VALVE AND CONTHOLLING MEANS THEREFOR.

APPLICATION FILED .IAN-4.1917.

1,319,502. L Patented Oct. 21,1919.

IIIIIIIIII IIII IIIIIIIIII" I I IIII.-

by; I

citizen of lthe United.- States, 1 esiding at ljel; ham, in the county of n estchester and-,State of NeW York, haveinvented new aiid. useful Improvements in *Valvesi and Controlling Means Therefor,.of;-Which the following is a specification. y

The present.mvention-relatesto .valves forcontrollmgthe iowoffluids and is p a'r ticularly applicable to-those which -areop? erated intermittently, that is, are; opened and closed automatically at morexor lessltfref quent intervals., The general object@ isxto provide .as means .by which. .the proportional bothl opening; and` closing it,y a part of. .such

mechanism being adapted.. to yield :under the actuation of superior force, .withfurther mechanism or'means for exerting such superior force in opposition to' said yielding means to overcomethe valve actuating ef-v fort of .the latten; saidlatten orcontrolling mechanism being adjustable so as to act .during a' longer orshorter period of time, and being preferably, although not, necessarily an electromagneticdevice. In the embodiment of the inventionpresented in. this application I have illustrated-a .positive me; chanical actuator for moving, the, valve,.in one f direction or e manner, a gyielda-ble.. actuator, a spring, for-moving it in theoppo-I site direction, Van electromagnet for exerting force to overcome theaction Iof said spring, and fan automatic circuit interrupterfor the magnet a part of Which is adjustable to Avary the extentof time in .each cycle", 'during which the circuit Eremains closed. .Offthese drawings,- Figure 1 is.va c entral sectional vievvgof Such-valveand t. I4`ig.2 is an elevationpf the valve asseen from theright of Fig. 1, with a portion of the mechanism ,broken away suficientlyfto yVALVE(min)co.irritenmve Mms'rnnansonv .showf ,the oper fmenSffri'ir ai? ,-f: sagem: .-...f nr' :afm-.f1.2

samefreferenchemotersndicate ,the allfthegures.; 1 Referring;.t, f.- tl.j1 e drawings, 1 0 represents avalvecasing-.onfitting in .which there is a tapered seat .11 wherevvith a valve- 12 Loffthe puppettypelcolfta The sftem 13 of this valve passes through a tubular guideway- 14 set intothefside. of...thei valvefittingas showmgiand.. carries. 0n its. .outer end, preferablyfby lbeing detachably threaded thereomamemberlypart of which is an arma; ture forl electromagnet 116, and, another part 15a is ,the follower for g an: operating cani 17 Whichfsxed ma. Shaft- 18. r

f i-'lfheeleotrmagnet z16'1rs .fe.1redl tais a' $.01@- noid vn iagnet ,which :surrounds .the tubular guide leandfis inclosedfbyacase 19, which latter has;aliange,193-l whichts against a flange 1 0a on the valve fitting, and also f orms the. base. `or .abutmentgto support. and take thethrust Iof a.spring; 20 which -surrmlnds the case .1 9 and. presses against .the armature ..15 s. .Such armature. bsngewde enough to overhangfthis spring.

. 'A non-magnetic; .Washer :2 1 mounted on the pole; face of the case 19,. that is.th e .face toward tha-armature f Secured t0 the .Cam -17 @Onvelentlybef ing `integral therewith, although: it-,may .be otherwise fmounted and arranged nto .move synchrononsly"y .with the icam, is a disk -22 which; is. 611e ,-Ofthe wntetmembers ...of a switch or. c ircuitgbreaker, the contact complemental to which is. astud23 Von the end of :a .shank whichV iS,- 'mounted .and mo'vable 'endwise' in an insulating bushing 25 'n a bracket 26on an `-arm- 27. A spring A28 resses .the contactbutton 23 towardthe disk :22 as far. as permitted by an abutment formedbylthe binding ,nuts on the steinv 2 1 coming into contat with a 'Washer'.29` surrounding the s tem 24; and-lying on .the end of thebusbng 25, The switch thus de soribedis. interposedin the circuit of the ele:tromagnet,4x .which is.. as follows From thepositive poleiof abatterySO .or other source .of current, a conductor 31. leadsto the stem 24 and is clampedtheretobythe binding' nuts before mentionedv Current passes thence.- through the disk 22, 'shaft .18, to. an arm 32 4`which is integral With vthe valve casing and s provides. tl 1ej bearingy for shaft lithence to thegcaseA 19,.and the terioo 3;' 1 rfi electro magnet, .throughr the tery. The terminal 33`^i`s`l in ciitat or "in 5 electrical connectionyvithfthepcaseilf but the conductor 34: and the coil'are otherwise meneame awed fronte@ valsa The foregoing description ofltheLspecic.

circuit'is not to be taken as in any sense 'afilimitationaof the'flin'vtn'tion.- 1r11 that material to this aspect of the inventionis that lthe electroma'gx'i'et" and' fthe'switch described are both i'n' '-'-the 'Smie circnit' so" that the, Switch adaptedto :controlegthe 'electromagnetf i 'f'des'ired ivsonrcef-fo'f- 'electricity may ter employedf-andf'any form y of' con# dilctor's, fiirvhetlier" the same are entirely of wir-e201 arez frmed in 'part fof the 'metallic frame" m'em'bdrsA or ,body of the fitting. 'i @n thaft part' ofithearm32,Which-iforms the2 'bearing for1 the' shaft 1 8 1- i's Ik'anexternal bearing-:Q5 which 'is "s'rronnded byf'adiub 36 inS the 'arm'2 7, whereby "said arm' I' may be 'swungaroand'tne axifsffjthe;Shania i f It may-IbeA assumed"j that' 'the purposes for which `'they valve *herein TdStrite'dare use@ ryeqaifqit fto'fbe interniittaalyj'opened and dosed,#andjthatjatheishaft 1s "therefore maintained'roontinnous "rotationlj 'This beigthecasa-'tliecam 17 at each rotation -p' w.; gaiisiithefollower"15 andv opens th"- i ifTh'e current passing through tlh'agtoil'ifs of vsuchy strengthfan'd the an @soi designed as: to magnet-,ispan-than is able to overcome'the pressnreof the Spring' 20 'T vvhen the 'armatnre is close; toy the fp'ol face "of f the magnet case',- but g i's insuf# ficient to overcome the pres'snrev cfr-the Spring when' 1 the armature il, y rlemotefrom this". face;v i las' wheii 'the' valve is V'closedgA Thus if there? i'sl "-a 'c'x'ii'rrentf jflowing throughf the 'coil' when the-armatnre'is brought ,toward it, thearr'iatiirejis 'attractedt and heldf after 45' the cam has passed ""the' 'ifolloiverf "whereby the valveisli'eldopen: f f -L :Thefdi'ratioiix'f tlieheld open Condition of the*lvalvismgoverned"by the circuit breaker' orI sivtchf f AS y"long las the "contact ineinb'erfQQ, which is'fomed asga sector4 of afcircnlar di'sl ,'contin11'esin ontac'tjwith the member 23j, the magnt'remains energetic, biit wflienth'e'l disk 4'contact passes aiva'y; from the" contact Q Sfthe i magnet "loses itsI ipower; The jle'ngthffof: time that tliese'membe1s remain inontact' after the cam passes" the follower," determines the len'gtli of :time that the' gvalve heldE o pen.- Thfi's 'periodm'a'ybe' vari' fbyf'svtiginge ar'rif aboutiits bariiig353WIf swung in the'- directio n"in which the caniz rotates, itlengthens itlie" durai tin" of the `valve opening, having'- the "coni trary' ''ect-vvhen lsvvnng iii,v the oppositei di# rectio'n ffEvi'dently' the closing-of' the ,fcir` c''it by the-switchbefore the' cam has' opened the .alvefhasl nllleffec't; mceftlieipovver of the magnet is insuiicient to overcome the closingaspiring?Wheirjshe armature is remote 'fi-6in the"magnetj= therefore it does not Htime or a short time before the camopens ,theyalvanprovided only it is closedatthe `iiistant"ivhen the valve is Widelypened. The-"length .of'ltirmegthat the switch remains closed after the cam has passed tlliezfollower is all that governs thelengthotirnethat thev valve' remains open, andthis feature is regulated; by thev adjnstment of the armi '27, f; l The jc'ycle4 of operations: thus' f fdescribed takes* place of course during e'aclr rotation 'of the shaft 18; andcomprisesvv ysuceessively the-opening "of the valveby the I cam# or actuator 17, the holding openfof'thc'valve bythe electromagnetic meansf-of which the neu-it has'1a;1re'ady=beeni closed, bythe circuit 1 areal-wr orf Controllern, 'the actuator' "cam Ehas'jvvith'drawn -fiomgthe valve,l lthef'disi a'blement ofthe magneticin'eans by' the breakl ing'of "the fcircnitithereof through' Y`continucal hioti'l'r ofthe' controller or' circuit breaker 22', and the' 'closing 'of 'the valve -by spring 20t There' is loff. -necessity van operating scoa'ction between" the valve 'actuator 17 'and the magnet controller-f'22,'feachj ofwhich has '-a'f'p'eridic actionina given sequence to vthe vaction'of the' other; `fvvhereby' toeaus'e opening 'of 'the valve at-i'ne point-in thev cyclegfand'closing of the Ivalve' at another point or time the 'valveopeningeiect being performed by the actuator cam, andl the-'1 valve closing effect controlledby the magnet controller: *Adjustment of thel'a'tterfby adjustingthe complemental jcontact member l23determines'the timing l-i,n"-the cycle *of these1 effects, "and therefore 'thatproporti'onal part' of the' 1 cycle during: which the' valve 'remains 'open'. 'l'f'f'1 'y Insteadrof" the valve being openedbyfth'e cani-,andfheld openby the electromagnet, itis obvious l' that the reverse" efflect might be* secured by the mere' reversal of'tlielvalveland valve' seat. -Inany case the-'ratio 'between the 'lengthv of'- time' 'during `Whi`ch"the valve remains open' and fthe time 'offthe'lenti're cycle, is controlled by thejelectromagnetfand the switch orcircuit' breaker; Othenmodif ications of the particular'- mechanismf here disclosed will f readily occur to jthef skilled mechanic'.l 4All such Imodifications;'Wlret'her theyconsist in substituting other' forms-f switch, 'or in causing 'fthe' 'magnetl to hold the valve closed'x instez'xdj 'of fopen,I or' tomo-ld the followerto'wardfthe cam ins'tead'of away' fr'ornfj-it, 'or' Whatever 'they :may '-jbe'; are within the-scopeof my invention as herein claimed. Y' i A' valveI havingth'e' lchaiacteristicsfhereinbefore defined is capable of alwide-variety ofy use s'f. Without intending thereby toli'nit the invention lin any Way to any-nso, =Iwvill say that one use is' in' connectionv with in-E tcrnal combustion engines', whereinfthego vision' for ad3ustment Vof vthe -tnneI during which the valve may be lheld open in athe cycle affords very.. convenient .and efficient means .for governing -the motorl -without throttling the fuel, and consequently :without retaining incombustible burned gases in the y combustion. space :of 1the-engi1ie. 1;. 1: Vhat I.y claim andxdesire. to secure by. Letfters-'Patentisz 1..-:r -2 2- :1 -,The combination witlra walve..and actuating .means -for moving the lsame at -deinite :intervals from :one position to another position, `of .magnetic -means alsooperating atdeinite intervalsand adapted-'when operating to maintain the valve in the second position.l I f. i

2. The combination ywith :.a-l -valvexand actuating. means therefor arranged and operating .to displace. the valve from;=.time to time, cf: magnetic. means? arranged to vhold said -valve in its displacedp'ositiom-and conf trolling. means for said -magnetic means larranged-.and operating -to render-the? latter alternately operative and inoperative Within the interval lof two successive operationsof said actuatingineana. rf '1;--..g;:...`. The combination vvithnaA valvef-'of-a periodic actuator operating to Vmove'- :the Vvalve f :om one position to another-and confstruct d tolimit its actuating impulse to. a relatively brief duration, magnetiolneans for retaining the: valve in the second po`si tion, after cessation of saidactuating impulse, .and a vcontrolleror said-magnetic means for causing the same to releasecthe valve at given times in cycle with the actu- ROIJ .-r

4. The combination with a valve, of a spring acting on 'said valve'fvvithatendency "actuator, as lo'ng ,-the. magnet l remains active, and means.: formakingand breaking the circuit; of said magnet in' cycle fxviththe operationsofsaid actuator.; f6. 1The.-.combinationwith a valve' ofl intermittently operatedmeans for opening and closing ithe,.:valve, Aone -of said means being 2 yielding, ;an,.. ielectromagnet arranged to 4exert 'force in gopposition to said yielding means, andaal switchf,in vthe circuit. .of said magnet intermittently; .openedi and closed. in synchronismf.- with L. the; operation of. said val-,velactuatingmeansri ..7L:The combinationwith a valve of means for ,actuating the-..valve infone direction, yielding -means tending, constantly. to actuate it ini-the fop(pos`it e, direction, an yelectromagnet arrange to apply force' to said valve in opposition to;'saidyieldi1ig.1neans and a switch. fin- .the` circuit; of said. magnet, means forintermittently; openin and'` closing said switch,isaid;means inclu ingan adjustable element, -the adjustment of Which-varies the time in the cycle ofoperations *duringy which malgnets`cve. a g j 1. 'l :Y .if 38a The @combination -vvithy -a .valve of an interni'ittentl'y; operative aactuator lfor periodically moving thegyalvein one direction, .av spring farrangedrtofexert iforce tending to move the-valvein the-opposite' direction, an electromagnet, thai-,armature forfwhich is connectedatoythe valve,- arranged to exert f o'rceon saidqarmature .inc p osition to said spring,`vitspowergbeing su cient to. overcome, the: force of ithe .spring Aandhold the armaturewhen fthevalve is .in the position whereinit is brought .bysaid actuator, and insufficient to overcome theyforce Yof the spring when the valve and armature are in :.the positionawherein they.Y are placed-by the t0 Close the Same7 an electro-magnet arAzsl-zeaactiOn 0f the Spring, and all lntelmlfr ranged to exert force tending to open said valve and so placed that the force so exerted is toc weak t0 move the valve from the closed position but is strong enough to hold it in the open position after it has been brought into that position by the application of superior force, and actuating means constructed and arranged to move the valve into the latter position at deinite intervals.

The combination with a valve, of a spring acting thereon with tendency to move it in one direction and to hold it in` is great enough to hold the valve in the second position, when it has been brought tc that position by the operation of said tent circuit breaker in the circuit of said magnet operated synchronously with said actuator.

9. The combination with a valve of an intermittently operative actuator for periodically moving the valve in one direction, a spring arranged to exert force tending to move the valve in the opposite direction, an electromagnet, the armature for which is connected to the valve, arranged to exert force on said armature in op aosition to said spring,.its power being su cient to overcome the force of the spring and hold the armature when the valve is in the position wherein it is brought by said actuator, and insufficient to overcome the force of the spring when the valve and armature are in the position wherein they are placed by the free action of the spring, and an intermittent circuit breaker in the circuit of said magnet operated synchronously with said actuator, said circuit breaker including a movable contact adjustable to vary the prol portion of the cycle during which said cirtheivalve -by saidaetuatir.l i v y10. IThecontdoinationwith'a valve of a rol tary cam, a rota eirc'uit breaker assoeiated therewithh'aving aninterrupt'ed contact surface',1aeo1np1ementa1 Contact element arf ranged 1 to` coLaot intermittently with said "surface faoeoigding ft'o 1 lthe position of i said breaker, an armaturey `-eonne'oted y'with the valveg an electn forn'agnet in eeperatiwev relation with said'armatureand ini oireuitfwith said oircuitfb'reaker-land Contact;` fan-dv Ka spring arranged to exert fforce'tending "to withdraw 'said armature from -said magnet and atthe'f'sarn'el timemove the 'valveJ the eainifbeing arranged an'd voperative 'to Jin'ove thel valve and armature' Tin opposition to the force ofsa'idspring. g, i v l1.-Thefcombination*with afvalve' of-a rotary o amgfa'lrotary circuit` breaker associate'df-therewiithhaving an interrupted'eontaet surfaoegal complemental Contact element 'arrangel` 'f to :ieoiact intermittently with l"said surfaceaccording-P 'to'- the position of said breaker, an armature eonneetedfwith" the Valve., an electroiagnet- Ein -f'oop'el-atiye relationiwfith saidarmatreand in eiroiiit'with said "gir'cuit" breaker/and.- `conta`et, 'fand i a spring; arranged "toexert Iforce tending to Withdraw! 'said armature? from said' magnet and at thesame time'if-Inove the Ya1ve,'the earn beingarranged and'l operative1 to move the valve'andfa-rmature vin opposition tothe force of' saidspring, -saidf Contact being adjustable along-fthe contactface of the circuit' breaker 'so as tojvary the proportional part gif-the oyoleduifingwhioh it remains in contact therewith. f"

cuit remains closed afteruthe actuation of Y 12. -z'lhe-colnbination#Withi-Ia'fwalve of a stem; an`l ar-Inaturell onf said'fstem', an? electrom'agnetf :surrounding said stein .f in ff'oopera'- tive :relation lWith the armature,` la :spring acting on said: valv'e tendingfto removerthe armature". fromrzthe magnet, ai@ rotary earn arranged. to act on f'Said zstemf so las tohmove the samexinv suchffmannei'/ that! the f armature is-=disp1aoed Vtoward the? 1nagnet:against the resistance of the spring, andfna-oircuit breaker! interposed inthe :eir'duitzof thmagnet 'comprisingi comp1ementa1icontaQts,-= one 'of' fwhich' `is associated aand @now-able lwithl :the earn;4 and is formedto inakexontaotmitir the other during-apartfonlylof itsuycleof; `ro

tation. I 1. i t 18. The combination with a valve'of a (stem, an armatre4 oni said' rst'em,1 anl electrotive'frelation Withfthe' armatlire,if-a spring l aotihgwonsaid" valve A''tending;to: ren'iove1 lthe armature. from@ the valve,IA 'sa: :rotary 'eamf` :arranged to act on said stemfso y-asto move the same in such? mannen; that? 'the armature is displaced toward' 'the' magnetfagaiiist .fthe re..

sistanee ofV 'ther springt and f a oirc'uit l breaker interposed in the dircuitrofffthemagnet; Goin-l prising dompieniental'eontadtspone of ivlioh is' associated' and In'ovable Withi the camgland iscformed'to'make 'contact with'the other n testimonyE Whereof I'. khave affixed #my signature. v

GILBT Winer-rfi".

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