US2373741A - Adjustable nozzle - Google Patents

Description

April 17, 1945.

w. J. CALDWELL.

ADJUSTABLE NOZZLE Filed March 1:5., 1942 2 Smets-sheet 1 Ap'l 17, 19457 W 1 CALDWELL v 2,373,741

ADJUSTABLE NozZLE' Filed March 13, 1942 -2 Sheets- Sheet 2 bwa/HM.' wauw lcazawzz,

Patented Ap'r. 17, 1945 nozzne wiliiam J. caldweltlndepenaese, ivm', l application March 13, 1942', seiiaiNn. 431,572'.

I 1 claims. (crea-fic) tion to discharge .a relatively den-se streamof*l fluid various distances, or adjusted to other positions vinqanother direction to spreadthe duid to different degrees as desired. 3 l

A rfurther object is to provide a'no'zzle having a housing with a 'fluid vinlet and containing two cylindrical valve"`memberswith peripheral ,inlet ports anda dischargefopening Whichlatter is ar-` ranged exteriorly of the housing and at' approximately ,right angles to the fluid inlet,.one kof said valve members beingrotatable within the other` into varying degreesof coincidence with thecompanion'por-ts, said inner valve member also ybeing adjustable with respect to a 'rear'wall fof the' housing to control an intervening port through which additionalfflow -ofuid in desired volume maybe obtained.

'Another object 'is to'provid'e a nozzle having tangential deflectors which cooperate with the inner valve member in imparting a rotary motion to the incoming huid, the latter being divided into a multiplicity of V.streamswhenifrassin'g through thev peripheral ports,I that c'vimfll'iine into a nozzle which may.

cylindrical valve member.

.i Fig; 15 isfa' 'diagranmiaticfview of the outlets oi Vtwo nozzles' locatedv s'i'deby side, with' arrowsk indicating, the uid whirlingreverse directions toqobtain more uniform distribution offthe uid as it is discharged from the nozzles;

` designates ya housing preferablyofthescroll type,v

Referringv detail "tog ther'different parts,v 2

providedwith an inlet 4 and :consisting `in the present -instance'of a peripheral wall 6, .an imperfnrate' rear wall 8 closing the rear end of the housing-anda-front wall l0. Transverse'ly arranged within the housing isv .a xed cylindrical'valve mem-ber |'2 which .is open atbothends and spaced inwardly from the rear wall itc leave an interi veiling port-14rrso that 'its ports may be either closed or carried i The/valve memberllz extends" outwardly' Iat rightanglestothe inletwd through an opening rintheirontwall I0 of the housing 2', which, in' the presentfinstance, hasvah annular flange I6` 'tofwhichjthe vavelnember `is brazed or other-y `Wiseixed. Thev-alve member l2 maybe provided with` one. or more-peripheral inlet ports of any desi-red. gshape. Preferably a series of equally spacedperipheralinlet ports f .l 8- are employed-and arranged inthe form-of longitudinal slots disposed,l in parallelismfwith they axis ofr thev valve member l2. Air or otheriluid under pressure entering housing 2 through the. inlet 4,- isdirected to the inlet ports I8v by deflectors 20 preferably a. common rotary stream in which sound Waves are reduced to av minimum, the combined stream being finally discharged from the nozzle'as a conical air flow at right anglesto the inlet ,openin the housing, the speed vand volume of the stream, being controlled as desired? by 'proper adjustment of saidV inner valve member.. f

' A further object-is to provide an adjustable nozzle: of'simple, inexpensive construction which is quiet inoperation, can be easily and accurately adjusted, and is notliable to get out of order'.

` Gther .objects will hereinaatfter appear and' in order that the invention may be fully understood, referencefwill now be had 'to the accompanying drawingsiniwhich: y f Y l Fig. i is a front elevation of the nozzle ivvitha portion thereof bnoken away. v Fig. 2 is a vertical cross section of the nozz'le f `online 2-2 of Fig. 1. l l Fig. 3 is' a.. detailperspective-vlew of a movable cylindrical valvemember.

f peripheral surfaces 25 of suilicient Width toclose struck fromthe valve-member l.2-and bent outvWardfat a4 tangent to the periphery thereof, Fig. 1,

The portsI IB are simultaneously. controlled by a, movable 'cylindrical valve .member 22 slidably and rotatablyv mounted within the Xedvalve member -IL`y l open at eaohendto .provide aninlet 2lv communicatingwith the port-1.4,. and an outlet- 23 through `which the lfluid. isdischarged from the nozzle. The valve member '7221s. also provided with aseries off-peripheral nletports. 24 spaced to' 'register withV the peripheral ports I8. The portsl8.,are spaced 4apart-,dto leave intervening portsw24, whenA the valve member 22lisY rotated to'.,carry` the ports 24 intor coincidence with the i'e'spectives'urfaces 25.The ports 24 arespaced 'far enough from the inletport ,21. of'thegvalve member `2i to leave sufcient 'surface'z'l tovclose the interventingportjI4.whenthevalvemember Ai2. islslid' backward against the rear wall- Blof the housing. 2,"a's will, presently appear.y

Any uitable means mayr be employed. for oper- The movable valve member 2.2 is` ent instance I have shown such means comprising a hand wheel provided with a ring 28 which is secured to the outer end of the movable valve 22 by rivets 30, or other suitable means, so that the valve member 22 may be turned axially to control the ports I8 and 24. The ring 28 has spokes 32 radiating from a hub 34 having a central aperture 36 through which a stationary rod 38 freely extends and is provided at its outer threaded end with a nut 40, which may be operated to move the valve member 22 longitudif nally against or away from the rear wall 8 of the i housing 2 to control the port I4. The nut 40 is operably connected to the lhub 34 in any suitable manner, a lug 42 for that purpose beingshown in the present instance fixed to one of the spokes tions to each other and thus become more equally distributed.

` 1. An adjustable nozzle comprising a housing having an inlet and a rear Wall, a cylindrical v32 and projecting into a peripheral groove 44 in the nut 40.

The rod sa is exea at its rear end in the apex `will flow through the ports I4, I8 and 24 and be I' discharged through the outlet 23. When it is desired to discharge a relatively dense stream of uid the maximum distance the valve member 22 is turned axially to close the peripheral ports I8,

and 24, and moved longitudinally to open the intervening port I4 to its full capacity, whereupon the fluid entering the inlet 4 will ow through the port I4 and be discharged with a rotary motion from the outlet 23 in a dense and approximately cylindrical stream, The density of the stream and the distance it will flow can be varied by moving the valve'member 22 more or less towards closed position.l When it is 'desired to spread the fluid to the maximum extent-the valve member 22 is adjusted to close the intervening port I4 and open the peripheral ports I8 and 24, whereupon a whirling motion is imparted to the fluid by the longitudinal deectors as they direct the fluid to the ports I8 and 24. As the fluid flows through the ports I8 and 24 and is discharged from the outlet 23 the whirling mo'- tion causes it to spread to the maximum extent. When both the whirling motion and distances of different extents are desired the valve member 22 is adjusted to open the ports I4, I8 and 24, accordingly.

In owing through the ports I8 and 24,l the fluid is divided into a multiplicity of streams which combine into a common spiral stream that is ejected from the nozzle outlet 23. l l While the nozzle is designed `more particularly for varying the velocity and volume of air discharged therefrom, it may be adapted to control and discharge steam, or various other fluids under pressure.

The nozzle may be appropriately calibrated with scales and indexes, not shown, so that the position of the movable valve member 22 can be readily determined.

If two nozzles are to be placed near each other, as shown by Fig. 5, the deflectors of one are .arranged to extend in a reverse direction to the deilectors of the companion nozzle so thatthe two streams'of uid will rotate in opposite direcvalve `member fixed in said housing and spaced from the rear wall to leave an intervening port communicating with the housing inlet, said valve member having a peripheral inlet port also communicating with the housing inlet, and a cylindrical valve member movably, mounted in the xedvalve member and provided with a peripheral inlet port and anfoutletwhich latter communicates with the former andthe exterior -of the housing, said movable valve member being slidable longitudinally with. respect to the rear wall of the housing to open or close the abovementioned intervening port, or turned axially .to one position to close the peripheral inlet port in the xed valve member. or turned axially to other positions to carry its peripheral inlet port into varying degrees of y coincidence with the peripheral inlet port of the fixed valve member, said movable valve memberl also having an open end which communicates with the intervening port when the latter is opened.

2. A nozzlecomprising ahousing having an inlet and a` rear wall, a cylindrical valve member fixed in said housing and spaced from the rear Wall to leave an intervening port communicating with the inlet, said valve member having peripheral ports communicating with the inlet, al cylindrical valve member mounted movably in the xed valve member and provided with peripheral ports, an inlet-adapted to communicate with the intervening port and an outlet which communicates with the inlet and the peripheral ports and leads to the-exteriorof the housing, said movable valve member being slidable longitudinally with respect to the rear Wall of .the housing to control having a iluid inlet, a cylindrical valve member fixed in said housing at right angles to the inlet and provided with a plurality of spaced peripheral inlet ports alternating with closed portions of greater area than said ports and coacting therewith individing incoming uid under pressure into -a plurality of streams, tangential'deilectors on said valve-member for directing the iluid to the respectivey ports, a rotatablecylindrical `valve member mounted in said fixed valve member and provided with a plurality of spaced peripheral in'- let ports and an outlet, said rotatable valve member being adapted to cooperate with the tangential deilectors in imparting a whirling motion to the incoming fluid and to control the peripheral ports, and a hand wheel fixed uponA the outlet end of the rotary valve member for operating the latter.

4. An adjustable nozzle comprising va housingr having a rear wall and -a fluid inlet, a cylindrical valve member xed in said housing. at approximately right angles to the inlet "andy provided with a peripheral port communicating ;with1said inlet,

said valve member having open front and rear ends, the latter end being spaced from the rear wall of the housing to leave an intervening port, a .movable cylindrical valve member associated with the xed Valve member and provided with an open end communicating with the intervening port, an outlet and aperipheral inlet port which latter isadapted to register with the firstmentioned peripheral port, said movable valve member being adjustable to oneposition to clo'se the port in the iixed valve member, or adjustable to other positions to carry its port into Varying degrees of coincidence with theperipheral port of said ixed valve member, a conical mem-v ber fixed at its base to the housing and projecting into the movable valve member, a hand Wheel xed to the outlet end of the movable valve memthe intervening port.

6. An air nozzle comprising a housing having an air inlet and including a rear Wall, a cylindri- `cylindricalvalve member open at each end provided with peripheral air inlet ports adapted to register with the first-mentioned peripheral air f ports, saidr adjustable cylindrical valve member bein-g operably mounted in the fixed valve member, means xed to the adjustable' valve member for turning the latter axially to control the peber to control the same, said hand wheelvhav,

ing spokes radiating from a central' hub, a rod fixed to the apex of the conical ymember and extending freely through a central opening in ther hub, and a manual member rotatably mounted on the hand wheel and threaded upon the outer end of said rod to adjustthe movable valve meml ber relative to the rear wall of the housing and thereby control the intervening port.

5. An air nozzle comprising' a housinghaving an air inlet and including a rear Wall, a cylindrical valve member open at each end and provided With peripheral air inlet ports, said valve member being fixed in the'housing at right angles to the housing inlet and spaced from the rear wall to provide an intervening air port which comy cylindrical valve member open at each end provided With peripheral air inlet ports adapted to register with the rst-mentioned peripheral air ports, said adjustable cylindrical valve -member vmunicates with said housing inlet, anV adjustable lor intervening air port.

ripheral ports, a rod xedly associated With the rear Wall of the housing, and a nut threaded on said rod and operably mounted on the means for turning the adjustable valve member axially, whereby the latter may befadjusted with respect to the rear Wall of the housing `to control the 7. A nozzle comprising a housing having an air Vinlet and including a rear wall, a tubular valve member xed in said housing at right angles tothe inlet and provided with open ends one of which is spaced from the rear wall to leave an';intervening port communicating with the -air inlet, a movable tubular valve member mounted in the fixed valve member and provided at one vsaid conical member and the discharge end of the movable valve member for adjusting the latter withrespect -to the rear Wall of the housing to control the intervening port.

WnmAM CALDWELL member with respect to said rear Wall to controlv

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