US1273913A - Centrifugal pump. - Google Patents

Description

1,273,9'1. Patentedquly 30, 1918.

. -v 1 zsuEETs-SHEET 1.

4- 156 A .a o l i Il IHK l *4 'S ATTQRNEY romusos'iiiimiine, 'or'sairaosn eariircairia.'

Lamela.

. Specicationof Letters Patent.. Patented, July 30,1918..l

"'Apliuegupn nieaxarcir i5, 1917. "sensi No. isaerzc.

To. all whom z't may convenu.

Be it known that I,' PoN'rusOsTEisBnRc, a. citizen of the United States, and resident of San Jose, in the county ot- Santa @lara l and, State of California, have invented cer tain new and useful Improvements in Centrifugal Pumps,-o`f which the 'following is a specification.

My invention relates to improvements in centrifugal pumps which utilize two or mOrestage's of rotors to revolve liquid to create pressure, of which the chief characteristic feature is the elimination of bearings and necks between the. rotors or impe1lers, and in inserting the .rotors in a con'- tinuous spiraled tubular pump body, as will v'be "more fully described herein.

Another feature of the invention that the liquid will be kept in a continuous revolving motion from the time it enters the first rotor o r viinpeller member until it leaves thellast member, which is an essential point.

- in 'high operating eciency.

Que obiect ofthe present invention provide a simple, substantial, cheaply manufactured deep well pump, 'par ticularly toprovide a novel construction lof pump body orbowl'and impellerarrange ment conducive to hi h operating ei'ciency, which will be more Iully descri ed herein.

In the drawings,- Figure 1 is a vertical, 'transverse section through my improved pump, partly in elevation.

Fig. 2 is a sectional view on line A-A of Fig. 1 but provided with vanes extending back tothe body of the rotor.

Fig is an elevation of one of the vanes -edge a and sho'ivn at 5".

chambers' 3. 'In vertical; 'crosssection each chan'rber' Wall is shown as curving sharply inwardly at the bottom and having a more gradual outward curve attlie top to the ripper edge 4. llithineach of said chambers 3 are :termed three spiral members 5,-each member extending a distance around chamber 3, rise ing from the lower curve of said chamber in such a manner as to form a continuousv sur face therewitlras at 53, and gradually nar-y rewingl andv dying out. as itv reaches upper At. fis shown a rotor member secured to shaft 7 by heyy-8, rotor 6 being formed to present a circular iiange 9 to the under side of the outer portion ofwhich is secured a number o'vanes as 10, said vaines i() being each-vane being provided with a vertical Wearing surface curving bacliwardly' with respect to\\a diametrical piane 'passing Athreugh its inner edge. In Fig. l vanes -10 do not extend back to the body of the rotor as shown in Fig. 2'but only extend back the width of member ill..` Member 11- is preferably beveled on its under side to vform. continuation of the inwardly curving 4upper portion of chamber` 3. 'Sincethe rotors tl are designed to be' axially alined and operated as one member, thereby forming a ceinpound rotor, the under surface of each is curved inwardly downwardly 'l2 to meet the inward and upward curre 1 3 ofv the next lower rotor so that the upper and lower surfaces of the vanes form' la con. tinuous surface W1th the abutting surfaces` of the contiguous n embers. The lcwermost rotor Sis preferably formed with a iat under surface to flange 9 as shownatli.

"When formed and itted as aboveA Set forth, 'with Vthe upper surfaces of members l1 in alinement with the lower curve of secured in turn to an annular member 11 and chambers 3, a continuous curved passage is.

ormedfrom the bottom of bowl l to the discharge casing 2. The several rotors 6 are secured to shaft 7 as described and therefore have no bearings or necks such as usually provided, shaft 7 operating in bearing l5 which is supported in the usura Zinanner. @n the lower portion 0i .bearing l5 is formed a 1flange 3.6 having a downwardly icc or more conduits as Q0.

- Itotor vanes 10 are shown and each preferably positioned in such a manner as to present -a wearing surface curved backwardly with respect to a diaiiietiical plane passing through' its inner edge as in F ig'. 2,

and at the saine time curving forwardly and downwardly as shownin Figs, 3 and..6. In

4vFig. 5 another .forni of vane is.' shown which not only curves backwardly as shown in Fig. 2 but also inclines downwardly and forwardly in straight lines. Then the form used in Fig. 6 is used it is preferable to carrv the vane clear back to the curved bodv ouf member 6. as shown. Fig. 4f indicates "that, my improved form of pump is alsovreadilv adaptable to the horizontal turbine the gen1,

eral direction ofthe spiral nienibers being indicated in dotted lines atfc.

'When iii operation shaft 7 is revolved in the direction indicatedby the ai'rpw in Fig. Q, thekwater being thrown outwardly and given a rotary movement bythe force iinparted through vanes 10. As the water is forced into chainbeis 3 it is yreceived by the upwardly curving spiral members 5 and guided upwardly until taken 'up by the next succeeding rotor or forced into the discharge casing as thel case may be.

desired pitch, their function being solely to assist in directing the water 'upwardly' and thereby lessen'ing the inertia whichthe vanes themselves have to overcome.

It niay now be seen that in v'improved vpump provides a construction which does not require bearings in connection with each rotor, the several members G being contigu-J cli-anges may be made tofmeet the require-l ments of practical application and exigencies of manufacture. but. within the scope of the appended claims. In the following claims the words inserted therein in a unitary structure are used in the sense of lieing a unitary structure. when in position and not necessarily being a unitary strut-ture during the act of plat-nr;T in position. lor instance, if the sli-ait were put in position The members; a may be of any desired number and of any in the casing and the several rotors subscquently placed thereon they would form a unitary structure inserted within the easing and woiild-be'removable in a. unitarv structure. .y

. Having thus describedmy invention, what I claimas new and desire to' secure by Letters Patent, is

1. In a centrifugal pump, a casing provided with a' cylindrical central chamber having a plurality of rotors operatively and removably insertible therein in a unitary struc-ture, and having inlet and outlet open-l ings, and an annular chamber formed in the wall thereof in operative vrelation to each rotor.' j

2, In a centrifugal pump, a. casing provided with a cylindrical central chamber having a plurality of -rotors operatively inlsertible therein in a unitary structure, and havingr inlet and outlet openings. and an annularchamber formed in the wall thereof in operative relation to each rotor, each annular -chamber having one `or -more upwardly inclined vanes positioned therein.

3. Av centrifugal 4pump comprising a .multicliambered casing having a compound rotor removably and operatively insertible therein in a' unitary structure.

4.. In a centrifugal pump, a casing provided with a cylindrical central chamber having a plurality of rotors operatively iiisertible therein ina unitary structure. and having inlet and outlet openings. and an annular chamber formed in the wall thereof in operative relation to each rotor. each annular 'chamber curving sharply inwardly at the bottomand more gradually outwardly at the top, and having one or more upwardly inclined vanes positioned therein.

5.'In a centrifugal'pump,a. casing provided with a cylindrical central chamber having a plurality 'ofrotors opera-tivelyinsei-trible therein in a unitary struct-ure. and having inlet and .outlet openings. and an annular chamber formed in the 'wall thereof in operative relation to each rotor, each annu ar chamber curving sharply inwardly at, tl 1. bottoni and more gradually outwardhY at the top. and having one or more upwardliinclined' vanes positioned therein'. each vane forming a continuous surface with its respective chamber at its lower end.

6. In a centrifugal pump. a casing provided with a cylindrical central chamber having a plurality of rotors operatively insertible therein in a unitary structure. and having inlet and out-let openings. and an Iaiiiiiilai chamber,formed in the wall thereof Lin operative relation to eat-h rotor. each annular chamber curving sharply inwardly at the bottoni and more gradually outwardly at the top and having one or more upwardly inclined vanes positioned therein. each vane forming a continuous surface with its rcper 'edgeof said. `chamber and inwardly inclined toward the axis ofsaid chamber;

7."In a centrifugal pump, a casing prov vided with a cylindricalcentral chamber.

- operative relation to each rotor,'eaoh annular i chamber curving sharply inwardly at the having a plurality of rotors operatively in-A sertible'thereiii in a unitary structure, and

nular chamber formed in the Wall thei'eotin 'bottom and more gradually outwardly at the top and having one or more. upwardly inclined vanes positioned therein, each vane forming a continuous surface with its' respective chamber at its lower end and gradually becoming narrower as it approaches the upper edge of said chamber.

S. In a centrifugal pump, a shaft, two or more rotors mounted thereon, a common bearing for said rot-ors, and a pump bowl vprovided with a plurality of spiraled chain.

bers operatively positioned with relation to said compound rotor.

9. In-a centrifugal pump', a casing provided with av cylindrical central chamber having Va plurality of rotors operatively insertible therein in a unitary structure, andliaving inlet and oiitlet openings, and an annular chamber formed in the Wall thereof in operative relation to each rotor, each annular chamber having one or more upwardly inclined vanes 'positioned therein,

i' and each vane forming a continuous surd face with its respective'chamber atits lower l0. ln a centrifugal pump, a casing provided with a. cylindrical central 'chamber having a plurality of rotors'operatively iiisertible therein ina unitary structure, and having inlet and outlet openings, and an annular chamber formed in the wall thereof -in operative relation to each rotor, each an.

nular chamber having one or more upwardly inclined vanes positioned therein, each vane forming a continuous surface with its iespective chamber atits lower. end and grad ually becoming narrower as it approaches the upper edge of said chamber.V

` l1. In a centrifugal pump, a casing provided with 'a 'cylindrical central chamber having a plurality of rotors operatively insertihle therein in a .unitary structure,` and having inlet and outlet openings, and unam nular chamber formed in the wall thereof in operative relation to each rotor, .each an'- nular chamber having one -or more'upwardly inclined venes positioned therein, each vane forming a continuous surface with its re-v spective chamber at its. lower end and gradually becoming narroweras it approaches thchupper edge of said chamber and incliniing inwardly toward the axis said cliai'iiberb per. edge of said chamber.

having a. pluralityiof rotors operativelyin'flsertible therein in a unitary structure,4 andv`vv g having inlet and outletopenings", and an' annular chamber formed inthe .wall thereofvr .in 'operative relation to each -rotor,-eaeh anv nular chamber having one or more' upwardly havingjinlet and outlet openings, and an an-` A inclined vaines positioned therein, each 'vane becoming 'narrower as it approaches the up- 113. In a centrifugal pump, a .casing i vided with a cylindrical central chamber having a plurality of rotors -operativelyiw sertible therein in a unitary structure, and

'having inlet and outlet openings, and ariane.

nular chamber formed inthe 'wall thereof inoperative relation to. each rotor, each an nular chamber having one or more upwardly inclined varies positioned therein, each vane' lbecoming narrower as ii-"approaches the upper edge of said chamber andbeing'inclined inwardly toward the axis ofv saidchainber.

14. In a centrifugal pump, a casingpro vided with a. cylindrical central chamber having a plurality ot rotors opei'ativelyfini-M seitible therein in a unitary structure; .fai-id.VVAA

having inlet and outlet openings, and anjannular` chamber formed in the. wall thereof@V 4 in operativeA relation to each rotor, each an 95.-

Iiular Chamber having one or more upwardly inclined vanes positioned therein. each vane being inwardly inclined' toward the axis off the chamber.` 4

15. ln a centrifugal pli-nip,

a casing pro vided withv .a cylindrical central clianiberf` having aplurality of rotors operatively inf' sertible therein in a unitary structure, and',

having-inlet and outlet openings,' and aiiuaii- 1 nular chamber formed in the .wall .tlieif'eot in operative relation to each rotor, said rotoi'sj being centered by ayhearing positioiiedfabove the uppermost rotor.

i6; ln a centritugalpunip, a casing pro# having a plurality of rotors operatively in'- sertible therein in a unitary structure, and having inlet and outlet openings, andan annular chamber formed in the wall thereof in. .operative 'ielationto' eaehrotor, the lower yliaviurig e plurality ot rotore operat-italylin .eertihletherein 'in a unitary structure, and

having inlet outlet openings, and an an* nular, chamber ormedin the `wall 'thereof in operative reiat-ioiito each rotor, each ai'inular chamber havin one or more-upwardly.

inclined vence positioned' thereim and the lower portion of each ofthe vanes' of said rotors curving forwardly' inthev direct-ion of rotation of. rotors.'

'vided with' a cylindrical central cliamberllt):

iis

1S. In a .centrifugal pump, a casing provided With a cylindrical central chamber having a plurality of rotors operatively inserted therein in n unitary structure, und

5 having inlet and outlet openings', and :1n :1nnular chamber formed in the wall thereof in operative relation to each rotor, the upper and lower surfaces of said rotors forlrling a Continuous surface with the abutting sui'- faces of the contiguous members. 10

Y In testimony whereof Il have hereunto affixed my signature this 7th day of Marg).

PONTUS OSTENBER-G.

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