ï,099,921.
G.- H. GIBSON. GBNTRIPUGAL' PIUMP". APPLICATION P11121) JAN. 1o. 1910. ï,099,921. ' Patented June-16,1914. / // // // / / 2/2. / / "1111/1/11,l/ / \\ 'ATENT oFFioE. GEORGE GIBSON, 0F MONTQLAIR, NEW JERSEY,‘ASSIGNOR T0 HIIVISELF„AND PAUL A. »BANCEL OF NEW YORK, N. Y. ‘f l y CENTRIFU'G-AL PUMP. Specification of Letters Patent. Application ñled January 10, 1910. To all whom it may concern.' Be it lmown that I, GEORGE H. Giesen, a citizen of the United States,~residing at ltíontclair, in the county of Essex and State of New-Jersey, have invented an Improve Patented June 16, 1914_ Serial No.- 537,15*?. In the drawing, Figure 1 is a central ver- ` tical section illustrating a centrifugal pump constructed in accordance with my inven tion. Fig. 2 is a cross section on line œ, fr, Fig. 1. Fig. 3‘is a cross section of the water ment in Centrifugal Pumps, of which theI inlet pipe showing the discharge orifices so 60 constructed as to permit the water flowing A ~ u y Heretofore rotary pumps for handling air therethroughr to be -ejected baclrwardly rela-- following is a specification.> as well as water, have been constructed in divers ways. I am aware for example, that rotary pumps have been made with an im peller provided with series of alternate and intermediate passages or buckets, in which thel alternate passages deliver air and the intermediate passages deliver water to chan- i tively to the direction of rotation of the im-> ` peller. Fig. Il is a section similarl to Fig. 3,' 65 with the- exception that the discharge ori tices are inclined in the opposite direction. Fig. 5 is a partial cross section of the im _peller wheel, showing the'passageways there in diminishing uniformly from their inlet to nels provided toreceive these discharges be their outlet points, and Fig. G is a partial tween the periphery of the impeller andthe 'cross section showing a further modification 70 diffusion chamber in the casing of the pump.V >of the impeller wheel wherein the passage Bumps of this general type have also been ways are of a uniform area throughouttheir 20 constructed in which the passages or buck 'entire length. x ' , Referring to the drawing, 10 indicates the ets of the impeller are caused to alternately pass over air and water» ports. Then too, pump casing which is mounted on a suitable pumps have been so made that the impeller , base 11 and provided with a discharge outlet is provided with an opening into the ,Water 12 preferably >located at the top of the ycas 25 passage thereof, the opening being placed be ing. The casing is provided with the usual for the admission of steam or air or a mix tional area as the discharge outlet >12 is ap 75 tween the center and the rim of the impeller volute discharge chamber increasing in sec proached, and one side of the casing is pref erably open and provided with a face 13 is customary in the ordinary centrifugal against which a side plate 14 is secured byv ture thereof, the water in this case being ad mitted at the center' or aXis of the pump, as 30 pump. . . Now in carrying out my invention, I pro vide a pump withA an impeller having a series' of vanes or blades providing channels 35 or passages which at their inner ends, are 85 bolts or any other suitable means.- In the side plate 14, there is a water inlet 154 ter minating in a closed end wall 16, adjacent to which in the walls of the water inlet 15, . there is a series of apertures or orifices in 90 open at all times to an air or vapor chamber dicated at 17.. provided centrally of the impeller within the 18 designates an air or vapor inlet com municating with a ,chamber 19 which sur l ' pump casing. I also provide means for rejecting-jets of water through this air orl rounds -tlle inner end of the water inlet 15. vapor chamber .into the channels or pas ' sages of the impeller so that there‘are alter QO'Vdesignates the impeller member which 95 as illustrated, is provided with a hub Q1 nate slugs of water and air which by the cen `.in which a shaft 22 is keyed, the shaft 22 be- ' trifugal action of the impeller in the revolu-' ing journaled in a bearing 23 on the pump tion thereof, are caused to pass through casing, the said shaft 22 passing through a packing gland 24 secured in position by the compressed and delivered with the `water screws 25 or other means in order to produce into the diifusion chamber surrounding the an air-tight joint between the shaft and the these passages, wherein of course the air is impeller in the pump casing. Furthermore, pump. 100 « It will be understood that the pump cas the blades or vanes of the impeller accord ing to my invention, ' are preferably so ing may be open on both sides thereof and 10E shaped as to restrict `the size or cross sec the bearing 23 may be connected with a plate tional area of the channels or passages at similar to the plate 14 _and adapted to be con 55 the periphery ofthe impeller, Whereby'the nected tothe pump in a similar manner, and resultant absolute velocity of the water dis also that any suitable means may be em ployed for producing an air-tight joint be charge is made as low as possible. 11,0 1,099,921 tween the .drive shaft and its bearing, and channels 3Q~into the *diffusion chamber 435 furthermore,„that the shaft andv its impeller communicating with~ the discharge outlet ._ may be driven f_fro‘m any suitable source- of `connection-:12.' Itvwill also be understood that the pump hereinbefore described may ’Now‘one-sidefof the impeller V20- 'is open'has i be utilized >asa compressor or‘simply as a indicated at~2'6"providing therein a chamber. steam condenser, Without departing from same- diameter as-the=air or vapor the nature andl spirit of my invention. It l' chamber' 19~‘and"'with which 'it' is in direct will also be obvious~ that'if desired, this ' of y.comr'nunication.l --'Between' thejwalls 27, 28, pump may be utilized to act both as a tail of vt'lie'impeller V2O, lthere are -‘spaced apart pump andair pump,- in which instance the vanes-orblades indicated at 29." ¿; 'These blades ' tail water'of a jet condenser is handledby « 75 preferably runfrom a pointatj,}the outside the pump‘and the blades or vanes of the im limit- ofthe air-- l‘amber WithinÍthe impeller peller are so designed as to take care of the to the 'periphei ' hereof andï'are curved larger volume of water at a lower velocity. 15: _baclîiwardly relative vto the direction __of rota `The pump may also be employed as a con , ' j" tion lof the impeller in order to reduce the. 1` averagefviv-elocitjprof »the water as discharged from the impeller. * These blades 29 lbetween> . the' Walls-27, 28,- provide channels or pas~ 80 denser and air pump by delivering the en tire‘volume of exhaust steam to the-vapor chamber and passages of the pump, and sup- ' plying sufficient ‘water to -condense the same, -sages indicated at 30 and adjacent to .the in which case the number and arrangement ' peripheifydoff-thev impeller, the blades 29 on of water jets would be modified to meet the 85 corresponding- f'sfades thereof are preferably working con Íitions, and in some instances it 'thickened or-- Ámade heavier as indicated atv may be desirablev to so construct the vanes 31, whereby -the'passages or channels 30 are or blades that the channels or passages in the 25 gradually restricted in cross section ad'acent impeller are of uniform cross section through to the peri-plreryof the impeller,",where y the out their entire length. , / It may 'be pointed out in regard to the average velocityof‘the water _ajs'discharged Ífrom the impeller relatively 'to¿,_ the periph effect of contracting the outlet orilices of the 30 ‘eral velocity‘of tlife impellerpis'f.increased so impeller that bending the >passages back thatthe absolute velocity of the',water as dis Wardly decreases the angle" which the path 90 95 impeller is made as low as of the Waterinalres as it leaves the wheel which assists to decrease the absolute veloc ' In suitable,_.positions, the walls 27, 28, of ity -of the w-ater leaving the impeller. Fur -the .impeller _are preferably provided with thermore the passages of the impeller may be laid out as evolutes of a circle concentric 100 35 ribsï32, one of vwhich is adapted to be re `chargedfrom possible.,l _- ' " V ' f d; ‘ “ ceived and rotatedin a groove provided j therefor l_in' the adjacent lwall of'thefcasing 10,' and the other` to be received and revolved in a4 similar groove or recess-„34 provided 40 therefor-in ,the ‘plate 14, so as' ‘to-'effect a with the shaft, such passages being of equal width at all points as illustrated: in Fig. G, orr these passagesmay be laid out on such a.' curve that they uniformly diminish in cross section from- the inle't to the periphery of the 165 water seal between the impeller and these impeller as shown in Fig. 6. -,Furthermore . ‘ parts’of the pump. t' Now in the operation of the pump,l water the orifices through which the water is eject ed from the Water chamber into the air y chamber may be inclined either forward as pheric pressureor a pressure slightly greater illustrated in Fig. 4 or-backward as shown and the air or vapor is admitted at the inlet in Fig. 3 instead of being radially disposed 18, passing _thrdugh the sam'e into the cham as hereinbefore described. rlVhen the water is supplied to .the water inletf15 at atmos 45 50 55 ber-19 and theadjacent chamber in the im‘ jets are directed backwardly relative to the peller. The water within the inlet 15'is rotation of the pump, the water would en ejected with >some considerable velocity ter the passages of the impeller with great through the apertures 17 whichv are prefer» velocity relatively to the latter and if the ably rectangular.v rllhe jets of water thus Water jets are directed forwardly the water issuing _through'the apertures 17 "are »directed would. enter the passages of the impeller through' >the vair or vapor chamber each with a'lower velocity relatively to the latter. against- a fixed circumferentially restricted I wish it also understood that this pump portion of the Zone surrounding the center may-be used as a reaction turbine producing of the wheel at which the inner ends of the power from air or other gas under pressure, channels or passages 30 open to said cham 110 115 120 vin lwhich case of course the water must be ber, sojtha’t :within thesechannels or passages supplied to it at a greater pressure than that ' so there are -alternate slugs of air and water of the gas. Obviously too the passugeways -which by the centrifugal action caused by in the impeller of my improved pump as the rotary movement of the impeller, are hereinbefore described, are preferably so 65 « forced -to the, periphery thereof through shaped that the energy due to the vvelocity these channels, the air being compressedand of the water relative‘to the wheel, as the discharged with the Water from,Y the said water leaves the wheel, is utilized to the best ` _ 1,099,921.. ,» .1. advantage to help turn the wheel; that is to the lateral liquid discharge, while those in say,~«the energy in the water, as it enters radial line therewith simultaneously take the the impeller wheel, and that transferred to it by giving it a high rotative velocity, is liquid. f ‘ ' 5. A pump comprising a casing, -a cen restored to the wheel when the water leaves tral liquid supplyl pipe~ with a closed end the latter. My improved pumpv therefore having anxaperture ~v`for lateral discharge, operates like a combined impulse and 'reac the extentof which circumferentially of the l. tion _water turbine and in fact could be oper supply pipe is materially less than the cir ated without applying external power to cumference of the supply pipe, an air cham 10 the shaft of the'impeller wheel, provided of ber around the >liquid supply, an annular course thatthe water enters the pump under peripheral "discharge and a . revoluble im peller around and spaced from said liquid supply pipe and surrounding the air chamber I. A pump comprising a casing», a central and within the annular peripheral discharge, liquid supply"-having.-an aperture for lat said revoluble impeller having a series of a sufficiently high head. ' l claim „as ,my invention: 80 20 eral discharge, an air chamber around the channels therein, which open into the said. liquid .supply and a revoluble impeller air chamber' and all of Vsaid parts being in a around andv spaced `from the liquid supply common planefwhereby said channels take and Ksurroundl'uig the air chamber and hav air when .the >entrances thereto are not in ing a :series of channels therein opening into radial line with the lateral liquid discharge, `said air chamber, whereby said channels take while those in radial line therewith simul air when the entrances thereto are. n'ot in? taneously take the liquid. , radial line with the lateral vliquid discharge, l v‘6. A pump ëompríising a casing,- a central while those in radial line therewithfsimul liquid supply pipe with a closed end having 85 25 taneously take the liquid. 90 a plurality lof :spaced apart apertures for lat 2. A pump comprising a casing,l a_ cen eral discharge, the collective extent of which tral liquid supply having an aperture for; circumferentially of the supply pipe vis less `- lateral discharge, the extent of which aper- - than :the circumference of: the supplypipe, ture circumferentially of the supply pipeA is an air chamber around the liquid supply„an au materially less than the circumference of the annular peripheral discharge and a revolu~ .95 supply pipe, an air chamber around ' the ble- impeller .around vand spaced from said liquid supply and a revoluble impeller -liquid suppl pipe rand surrounding the air > around and spaced from said liquid supply _chamber an withiuthe annular peripheral and surrounding the airA chamber and hav~ discharge, said revoluble impeller having- a 35 ing a series of channels therein opening into series of channels vtherein which open into 100 the said air chamber, whereby said channels the said air chamber, whereby said channels take air when the ,entrances theretoare not take air when the entrances thereto'are not in radial line with the lateral liquid dis in radial _line ‘with the lateral liquid dis charge, while those in radial line therewith charge, while those in radial line therewith simultaneously take the liquid. 40 simultaneously take _theliquid Y ' 3. A pump comprising a casing, a 'central' liquid supply having an aperture for lat f 7. A >pump comprising a casing, a central 'los liquidv supply pipe with a closed end having eral discharge, an air chamber around the at least two oppositely disposed apertures 45 liquid supply, an annular peripheral dis for lateral discharges, the collective extent charge and arevoluble impeller around and of which circumferentially of the supply spaced from said liquid supply and sur pipe is materially less than the circumfer» rounding the air chamber and within the an» ence of the supply pipe, an air inlet and air 50 nular peripheral discharge and having a se ries channels therein opening into-said' air chamber and all of said parts being in a common plane, whereby said channels take revoluble impeller around and `spaced 'from said liquid supply and surrounding said air chamber and having a _series of channels air when the» entrances thereto are not in ra therein which open into the said air chamber, . chamber around _the liquid supply and a dial line with the lateral liquid discharge, whereby said channels take water when the while those in radial line therewith simul» entrances thereto are not in radial line with 55 taneously take the liquid. , - 4. A pump comprising a casing, a central 60 65 the lateral liquid discharge, while those in> 120 radial line therewith simultaneously take ~ liquid supply pipe with a closed end and the liquid. adjacent aperture for lateral discharge, an ‘ 8. A pump comprising a‘casing, a central ai-'r chamber around the _liquid suppl-y and a liquid supply pipe with a closed end and revoluble impeller around and spaced from adjacent aperture for lateral discharge, an said liquid supply and surrounding the air air chamber around the liquid supply and a chamber and having a series of channels revoluble impeller aroundl and l,spaced from therein which open into said air chamber, said liquid supply and surrounding the air whereby said 4channels take air when the en chamber and havin a series of channels trances thereto are not in radial line with therein which open into _the said air cham 125 130 v 1,099,921 ' à . ber and which channelsare restricted adja ber, ywhereby said channels take air when the entrances thereto vare-` intermediate the by said channels take air when the entrances apertures _of the centra-l liquid sup ly, while thereto are not in radial line with the laterall those opposite said apertures _simultaneously ‘ cent to the periphery of the impeller, where ' » liquid discharge, whilev those in 'radial lineV take the liquid. v12. A pump comprising .a casing, a cent-ral therewith simultaneously take the liquid. 9J A pump> comprising a casing, a central liquid supply having an aperture for lateral liquid supply vipe with a closed end having discharge, an air chamber around the `liquid 50 55 a plurality oi) spaced apart apertures for supply,and a revoluble impeller around and lateral discharge, the> collective extent of spaced from the liquid >Supply and surround- . ' .which circumferentially of the supply pi e ing the air chamber and having a series of is less than the circumference of the supp Ay channels therein, whose exit apertures are pipe, an air ,chamber around the liquid sup- of less areathan their entrances, -so that the 60 10 ply, an annular peripheral discharge and a said channels are gradually restrictedl in 15V _revoluble impeller around and spaced from; ycross section', adjacent to the periphery of ».said liquid supply pipe and surrounding the the impeller, whereby the average velocity air chamberand within the annular periph of the water,- as discharged from the impeller - eral discharge, said revoluble impeller hav-~ relatively to the~ impeller, is increased s0 that 20 'ing a »series of channels therein which open the absolute velocity of the water,l as dis into said air chamber, and which channels charged from the impeller, is made as low as ‘ , are restricted adjacent to the periphery of possible. ' the impeller, whereby said channels take air ‘ 13. A pump comprising a casing, a central when the entrances thereto are not in radial liquid supply -pipe -with‘a- closed end having those ' in radial line therewith- simultane for lateral discharges," the collective extent line with the lateral liquid discharge,- While at least two oppositely disposed apertures of which circumferentially of the supply 10. Alpump comprising a‘casing, a central pipe is materially less than the circumfer-i _ liquid supply having an aperture for lateral enceof the supply pipe, an air inlet and air ously take the liquid; 30 35 ` ' discharge, an air chamber around the liquid chamber around the' liquid supply, and a supply, and a revoluble impeller around and revoluble- impeller around and spaced from spaced from the liquid supply'and surround said liquid supply and surrounding said air ing the air chamberv and having a series of chamber and having a series of channels e channels therein opening into said air cham therein, which open into the said air cham~ ber, whereby said lchannels take air when the bei', the entrance area of any one of the 80 entrances ‘thereto are intermediate the aper channelsof the'revoluble conveyer‘being less tures of the central liquid supply, while than the area of either of the apertures of those opposite said apertures simultaneously the supply pipe, whereby the liquid laterally take the liquid. e _ 11. AA pump comprising a casing, a central 40 discharged is of such volume as to com pletely fill each of said channels with a slug liquid supply, having an aperture for lateral of liquid, as the same comes into position. Signed by me‘this 3rd day of January discharge, an air chamber around the liquid supply, andA a revoluble impeller around and l1910. spaced from lthe liquid supply and surround- . ing the air chamber and having a series of 45 channels therein, which are curved back wardly, relative to the direction of rotation of the impeller and open into -said air cham ~ eno. H. GrBsoN. ' Witnesses: ` ARTHUR H. SERRELL, , BERTHA M. ALLEN. 35
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