CA1163862A - Bladeless pump and method of using same - Google Patents
Bladeless pump and method of using sameInfo
- Publication number
- CA1163862A CA1163862A CA000317644A CA317644A CA1163862A CA 1163862 A CA1163862 A CA 1163862A CA 000317644 A CA000317644 A CA 000317644A CA 317644 A CA317644 A CA 317644A CA 1163862 A CA1163862 A CA 1163862A
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- pump
- confined space
- opening
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/001—Shear force pumps
Abstract
ABSTRACT OF THE DISCLOSURE
A bladeless pump that includes a housing that defines a circular confined space of substantial width into which either a single phase fluid or multiphase fluid is sequentially introduced through a centrally disposed inlet in a first side of the housing to be subjected to a boundary layer rotational drag by at least one substantially smooth disc that rotates in the confined space intermediate the first and second side pieces of the housing and parallel thereto. The pump is capable of pumping a multiphase fluid such as that from a geothermal well that includes water, dissolved solids, steam and gas vapor, the boundary layers on the rotating discs prevent objects in the inner phase of a fluid contacting the discs and as a result there is little or no abrasion of the latter. Also, the boundary layers on the discs protect the latter from contact with bubbles in the fluid, and as a result there is no cavitation on the discs due to abrupt collapse of the bubbles.
A bladeless pump that includes a housing that defines a circular confined space of substantial width into which either a single phase fluid or multiphase fluid is sequentially introduced through a centrally disposed inlet in a first side of the housing to be subjected to a boundary layer rotational drag by at least one substantially smooth disc that rotates in the confined space intermediate the first and second side pieces of the housing and parallel thereto. The pump is capable of pumping a multiphase fluid such as that from a geothermal well that includes water, dissolved solids, steam and gas vapor, the boundary layers on the rotating discs prevent objects in the inner phase of a fluid contacting the discs and as a result there is little or no abrasion of the latter. Also, the boundary layers on the discs protect the latter from contact with bubbles in the fluid, and as a result there is no cavitation on the discs due to abrupt collapse of the bubbles.
Description
1 16~862 The present invention relates to a pump and more particularly to a bladeless pump.
A major object of the present invention is to provide a bladeless pump and method of using the same to trans~er either a single phase ~luid or multiphase fluid from a first location to a second location without damaging the material that comprises the inner phase, even when the inner phase is of an extremely frangible nature such as the red blood cells in blood.
Another object of the invention is to furnish a bladeless pump that may be used to pump such diverse materials as fruits, vegetables and berries, as well as marine animals that include fish, shrimp, crustaceans and the like from a first to a second location when the materials from the inner phase of a fluid in which the outer phase is a liquid.
~ et another object of the invention is to provide a pump that is substantially free from cavitation and erosion, and one that is capable of transferring a liquid that tends to froth from one location to a second location with a minimum of frothing.
A still further object of the invention is to supply a bladeless pump that is capable of efficiently pumping air or liquid slurries, particularly liquid slurries that have a high solids content and may contain paper, cloth, and fibrous materials such as occur in sewage, and also slurries that contained a high percentage of solids in the inner phase thereof, such as pulverized coal in coal slurry.
A still further object of the present invention is to provide a bladeless pump capable of efficiently handling hot geothexmal multiphase fluids that contain water, dissolved solids in the water, steam and gas vapors.
C
1 ~638~2 The bladeless pump that includes a housing that defines a circular confined space of substantial width into which either a single phase fluid or multiphase fluid is sequentially introduced through a centrally disposed inlet in a first side of the housing to be subjected to boundary layer rotational drag by at least one substantially smooth disc that rotates in the confined space intermediate the first and second side pieces of the housing and parallel thereto. The pump is capable of pumping a multiphase fluid æuch as that from a geothermal well that includes water, dis301ved solids, steam and gas vapor, or a fluid in which the outer phase is water and the inner phase may range through such diverse materials as particled coal, marine animals such as fish, shrimp and crustaceans, and edibles that include fruits, vegetables and berries, as well as metallic object~ of which steel ball bearings is an example. The pump has the capability of pumping beer without appreciable frothing the latter. Also, the pump is particularly adapted for pumping a multiphase liquid in which the inner phase is extremely frangible, of which blood is an important example. The boundary layers on the rotating discs prevent objects in the inner phase of a fluid contacting the discs and as a result there is little or no abrasion of the latter.
Also, the boundary layers on the discs protect the latter from contact with bubbles in the fluid, and as a result there is no cavitation on the discs due to abrupt collapse of the bubbles.
Q ; ~ .
. . : .
BRIEF DESC~IPTION OF ~HE D~WING8 , .
. - F~G~ 1 i8 a perspective view of the bladeles~
, pump '' : . ' ' '';' ,- "
FIG. 2 i~ a side eleva~ional view o the pump~
.: .. . . ~: . . . :
~ : : shown in ~G. ls, . : ~
. . . . . .
:.". . ............................. .
. . FIG.'3 is a tran~verse cros6-~ectional view .. . , . ~
o the pump shown in FIG. 2 taken on the line 3-3 .
;
. thereon, and 111u6trating a first form of the pumps .
~ PIG. 4 is a combined vertical cross-sectional : 10 ':,' , and side-elevational view of the pump ~hown in .. . . .
; . F~G. 3, and taken on the line 4-4 thereof~
. , .
,, ~ . ,, , :
' FIG. 5 is a transverse cross-seational ~lew : , , , .. "
: ; ~ of a seao~d form of the bl,adeless pump~ , ~ . . . ..
.FIG. 6 is a transverse cross-~ectional,view .
' of a third form of the bladele6s pump;
, : ~ ' , . ' i .; ' .
.. . .
' ' , . 'FIG. 7 is a transverse cross-sectiona~ view ~ , .of a modifi¢ation of the ~irst'~orm.'.~ the pump~
.. . . . . . .
. .
.
. . .
: .F~G. 8 is a transver~e aro~s-seational~iew , '. of a fourth form o~ the b~a~eies~'pump~ .
, . . . .. . .... . . .
, , ~' ' ,; , , _ , ..... . ..
. .
~163862 ~, .
:
FIG. 9 is a combined vertlcal cross-sectional .
an~ side elevatlonal view o~ the ~ladeles~ pump shown in F~G. 8, taken on the llne 9-9 thereot - ` F~G. 10 i8 a fragmenta n transverse cross~
! , ectional view o a modification o the fourth ?
form o biadeless pumps . FIG. 11 is a side elevational view of the bladele~s pump shown in FIG. 8 with a modified . ~ . . ; form o housLng, with the fitting and first conduit being shawn in ~ection to illustrate the , ¢ircular cavity in the fitting that i~ of-centered relative to the ~ir~t opening in the first side wall . . , to impact initial circular motion to fluid through ~he ~itt~ng ~rom the ~irst conduit prior to the 1uid entering the co~lned spaoe with~n the pump housing~ -"' '"'' .'" ''' ' ~ ' ,,, . ,; . . .
~IG. 12 is a horizontal cross-sectiona~ vie~ ,:
o.a first modification oi the pump etruGture shown ~ in F~G, 8 that employ~ the hou~lng illustrated : in FIG. 11s FIG. 13 is a horizontal oross-sectional view o a irst môdification of the pump ~tructure ; shown in FIG. 3 that employ~ tbe,hou~ng ~tructure . : illustrated in FIGS. 11 And 12s b .
Fig. 14 is a perspective view of the pump shown in Fig . 11 b~t modified to have the first conduit normal to the side walls thereo~ and centered relative to the inlet opening in the first side wall.
Fig. 15 is a horizontal cross-sectional view of a second modification of the pump structure shown in Fig. 8;
Fig. 16 which is on the same sheet as Fig. l, is a perspective view of a second modifi-cation of the pump shown in Fig. 3, and Fig. 17 is a longitudinal cross-sectional view of the pump shown in Fig. 16 taken on the line 17-17 thereof.
Each of the various forms of the invention and the modifications thereof specifically identified in the above description of the drawings, include the pump housing a8sembly B and D shown in Figs. l and 11. Pump housing assembly B includes first and second, laterally spaced side pieces lO and 12 that are illustrated in the drawings as having lower horizontal edges lOa and 12a that are adapted to rest on or be secured to a suitable supporting surface (not shown).
The first and second side pieces 10 and 12 have a circular end piece 14 extending therebetween, which end piece is secured to the side pieces by screws 15 or other suitable fastening means. Side pieces 10 and 12 and end piece 14 cooperate to define a vertically extending, circular confined space C of substantial width.
G
1 163862 ~ .
.
The first side piece 10 ha~ a fir~t'openi~g 16 ' ' therein that is centered relative to the circular end piece 14. ~ fi~ting 18 is in fixed sealing rèlation6hip with the exterior s,urface of the flr6t side piece 10. The fittin~ 18 has an o~f ~entered first passage 20 defi'ned in the interior, thereo~ that is i~ ~ommunication with;:the ~first opening 10, as well as the interior of a first upwardly and outwardly extending conduit 22. The passage 20 i8 of s~ch curved coniguration that initial rotary motion i6 imparted to the fluid'flowing therethrough prior to the fluid entering the confined space C. The first conduit 22 extends to a ir6t location ~not shown)' at which the fluid to be pumped i8 stored or iB available to be pumped.
A second opening 24 i~ ~o,rmed in the 6econd end piece I2 and i8 preferably coaxially aligned with the fir6t openlng 16. The second opening 24 has a bearing 28 operatively associated therewith, and the bearing supporting a shaft,30 .
- ~ ,'' that extends into the con~ined spac-'C and i~ normally "" ~ ' disposed to the second end piece 12. A seal 28 is mounte~
.
,20 , ~ on,the exterior portion of the end piece 12 and ~s in ~' ', rotatable sealing engagement with the shaft 30~
" , ' The sha~t 30 ha~ an interiorly position shouldered end por~ion 32. The end portion 32 of the shaft 30 most , ,, ' ~' remoté ~rom the s'ëcondL~nd~ipi~ec~,12 ~s i~lustrate~d as~eing ., . ~ , . J ,:
, , drlven by a prime mover' 34, wuch as an electric motor or the e. ~ flat disc 36 is dis~osed within'the confines of the ' " . -. ...
~ confined space C, with-the disc having a centered opening , therein through which;the,~houidered end portion 32 of th,e .. ~, ~ ,. . .
', " , ;~ , shaft 30 extends. An apertured plate 38 is mounted on the first end portion 32 of the shaft 30, and is urged into pressure abutting contact with the central portion of the disc by a nut 40 that engages the first end 32. When the nut 40 is tightened the disc 36 is frictionally gripped between the shouldered end portion 32 and plate 38 and cannot rotate relative to the shaft.
A number of circumferentially spaced pins 42 are illustrated in Fig. 3 as projecting from the disc 36, with the pins having externally threaded free end portions adjacent the first side piece 10 that are engaged by nuts 44. A
number of ring-shaped discs 46 are provided and disposed within the confined space C as shown in Fig. 3, with the ring-shaped discs having a number of circumferentially spaced openings therein that engage the pins 42. Spacers 50 are mounted on the pins 42 and situated between the ring-shaped discs 46, with the discs defining ring-shaped spaces 52 therebetween. The ring-shaped discs 46 have inner peripheries 54 that are axially aligned and cooperate to define a transverse second passage 56 as shown in Fig. 3, which second passage is in communication with the ring-shaped spaces 52 defined between the ring-shaped discs 46.
When the disc 36 and ring-shaped discs 46 are rotated concurrently by the prime mover 32 driving the shaft 30, fluid that has entered the confined space C tends to rotate therein as a circular mass. In Fig. 4 it will be seen that this circular mass of fluid rotates in a clockwise direction and as the fluid so rotates it discharges through a tangentially disposed discharge outlet 58 in the upper portion of the housing B to subsequently flow through a diverging tubular member 60 to a second conduit 62 which C
conduit leads to a second location (not shown) at which it is desired to pump the fluid. The tubular member 60 is illustrated in Fig. 1 as formed from extensions of the side walls 10 and 12 and end wall 14. Fluid in flowing through tubular member 60 decreases in velocity with an accompanying increase in the static pressure head thereon.
When prime mover 32 is rotating the disc 36 and the ring-shaped discs 46 concurrently as a unit, boundary layers of the fluid will adhere to the disc 36 and ring-shaped discs 46 adjacent the ring-shaped spaces 52. Such boundary layers adhere to the disc 36 and ring-shaped discs 46 and occupy substantially fixed positions thereon. These boundary layers are sheared from the balance of the fluid in the confined space C as the disc 36 and ring-shaped discs 46 rotate, and this shearing imparting sufficient rotary force to the circular body of fluid in the confined space to cause the circular body of fluid to rotate in a clockwise direction. As the fluid so rotates in the clockwise direction a portion thereon flows through the discharge outlet 58 and ultimately through the member 60 and second conduit 62 to the second location (not shown). As fluid leaves the housing B as above-described, additional fluid flows into the confined space C from the first passage 20.
The fluid in entering the second passage 56 has a low rotational velocity. As fluid is discharged from the outlet 58, this fluid that has entered the second passage 56 tends to flow outwardly through the spaces 52. The spaces 52 are each in width substantially greater than twice the thickness of the boundary layer of fluid on the ring-shaped discs 6 that define the ring-shaped spaces 52 to provide maximum shearing force on the outwardly moving fluid.
C
The outwardly moving fluid is subjected concurrently to two forces, the first being a tangentially directed force, and the second a centrifugal force, with the centrifugal force increasing as the fluid moves outwardly from the second recess 56. As a result of these two forces, fluid after entering the second recess 56 and discharging thexefrom, pursues a spiral path prior to discharging from the discharge outlet 58.
The interior surfaces of the first and second side pieces 10 and 12, as well as the end piece 14 also have boundary layers of fluid that tend to adhere thereto, and as the circular body of fluid rotate in the confined space C, the shearing of these boundary layers from the rotating body of fluid tends to restrain the rotation of the body of fluid in the confined space. Thus, the rate at which the flat disc 36 and ring-shaped discs 46 are rotated concurrently must be at such a rate that the drag force imposed on fluid moving outwardly through the ring-shaped spaces 52 is sufficient to impart rotary motion to the body of fluid in the circular confined space and overcome the tendency of the boundary layers on the interior surfaces of the first and second side pieces 10 and 12 and end piece 14 to resist such rotary motion.
o- o`
, . , . . ll63s6a Xn ~he ~orms o~ the invention ~o~n i~ PIGS~ 12, 13 a~d 15, tl~is resisti~g tendency is minimize~ by the side sur~aces : ~hat dc~ine the confined space C being free to ro~a~e with ~ho circular body of fluid. Under'such circumstance~ there ,i5 a minimum differentlal between the rate o rotation o~
the circular body o~ 1uid and the side suxfaces that -par~ially de~in~ this body o fluid.
~ The first form A-l of the invention above-described : is capable o being used to pump either single phase or 0 ~ multiphase ~luid from a irst location to a second loca~ion.
When a'multiphase fluid is being pumped in which the first .phase is a liquid or gas, and the second phase a number o' sp?ced solid objects,Othe spaces 52 must be of suficient ' ' wid~h as to allow.the objects o~ largest cross section to ; :
move therethrough with the gaseous or liquid phase with ' which they are associated.
: . From an experience it has been ound that the 'boun~ary layers o a 1uid, either gaseous or a liquid, are no~ penetrated.by solid objects entrained therewith, and as . a result when a multiphase ~luid is being pumped that contains .
~'solid objects, these objects will not contact the inner sur~ace o the housing assembly B or tha sur~acos of the .' disc 3G or ring-sha'ped disc6 46. 'Thus, the.'solid objects .
havé minim'um abrasive'a~ion on the surf~ces o~ the pump' during the'passage there^through. ~he pump A is also ~ree "
o aavitation, .for bubbles entrained with the 1uid are not physically conta'cted by any li.~tin~ sur.~aces and.pass between the discs. They enter the pumn as bubbles anfl . . ~
' discharge rom the pump as bubbles, although smaller as a a , . ~ ' rësult o ~he increased pressure a~ the discharge.
, ., ~ .
.
The second form o the'invention A-2 ~hown in FIG. S is similar to thè fir6t fonm, other than that the disc 36 and the ring-shaped discs 46 have outer pexipher,al portions that taper towards one another and are identiied ' ' on the drawing by th~ notation 36a,and 46a. Due to the , '~ above-mentioned cons~ruction in the second form A-2 of the pump, ~he fluid wili tend to remain in the spaces 52 a ' greater length o time, and will be subjected to rotary ~ shear'or a grea~er,length o time, to be delivered ~o the ~ discharge outlet 58 at a higher pressure than would normally be achieved when the first form A-l o the pump is used.
' ~,n F~G. 5 it will be seen that the second form A-2 of : pump al80 hàs the outer peripheral portions o the f ir8t.
~'',' ;' and second ~ide piecés lOa and 12a tapering inwardly ; towards one another.
' The third orm A-3 of the pump i8 ~hown in F~G. 6 .
di~ers ~rom the ~irst form A-l oniy in that the ring-shaped ' , disas '46 are not of uniorm wall thic~nes6, but taper , ' ~, outwardly from the inner periphery 54 thereo and are of ~ maximum thickness at the outer periphery of the'discs. The ring-shaped discs i6 o the above-described structure resul~
~,' in ring-~haped spaces 52 being de~ined therebetween when '~
~paaers 50 are mountéd on the pins 42', which ring-shaped spaces are of maximum'width adjace~t inne~periphery 54 and ' ,;~, are of minimum width adjacent the outer periphery of the ring-shaped di~cs 46. By varying the wall thi¢kne~ o the ', ~, . : ,, ,, , ~ . . .. .
. .
;, ~ ~ : .
~' , : ~.' ' '`
,; . .
- - \
'~' ring-shaped discs 46 as shown in FIG. 6, the ro~ary boundary layer drag on the flu~d as it rotate~ ae a c~rcular -body within the confined epac~ C, may b~ conveniently ~, , . . .
varied, to provide fluid at the di~charge outlet 58 o a ,,desired pressure., In F~G. 7.a modification ~'-l o~ the fir6t form ;~
oP the invention is shown, with the diied form A'-l varying from the first form only in'that the inner periphcr~
, ~ 5i of the ring-ehaped discs 46 vary in diameter, and this, ; 10 ~ variance in diameter varying the area of,the surfaces of ;the ring-shaped discs 46 that may impo6e a rotary motion ~ '' '' to the'circular body of the fluid in the confined epace C, ~ a~ ~hé ring-ehaped discs 46 and disc 36 rotate relative ' '' ' , ~,thereto.
.: . , , ~ ' The fourth form A-4 of the,inv~ntion as shown in'~, ~
. ., ~ ~ , ~ , , IG, 8 differs ~rom the first orm A-l in that the flat ,~ ~, "' dlsa'36 and ring-6haped discs 46 ar~ removed rom the ', . , . ~ .
irst orm and replaced b~ a single disc 64 that hae a centered hub 66 that has an opening therein that engages ~,20j;,',, , ~ th,e ~houldered end 32 of the shat 30 and ~5 held thereon ' , . by a nut 40 . The hub 66 is illustrated in F~G. 8 ae having , "
the ma~or portion thereo curve ratially in a stream line ~, :, ~,. . . .. . . .
,'~, , ~,',', con~iguration. The diec 64 ae may'~e seen in F~G. 8 extend~
','',, ~ towarde the int~rior 6urfa¢e o the eecond ~ide pi-ce 12. The ' fourth orm A-4 of the pump ie particularly adapted ~or u6e ~n tran~férring m~lti ~ fluid ~rom a ~r~ to a ~xnd ~ocatlon, 6uch ao , , . ~ ~ ' ' , : ' , J , . , ._ . .
~ 10/26/77 1 163862 ~ -, `: .: , .
. .
wllon tl~o ~ t ~>hn~o i~i a liqu~ nd 1:ho Gccond pha~
num~er o 0~ CC~5, such as pot~atoes, ch~rry ~omatoos, ~r~i~s, vcgc~ble~,~ and marin~ animals ~nclu~ing' fish, sl~rimp, and ~he like. Whcn the confined space C h~As ~o~n . ' fill¢d with a mul~iphase fluid ~rom the fir~t location ~ as previously describcd, the primc mover 32 is actua~ed ~1 to cause rotation`of the disc 64', and thi~ disc ~1han .rotated i~ a counterclockwise direc'tion as viewcd in~F~G. ~
' i~parting circular motion to the circular body o ~lui~ .
' within tle conined space C. ~he body oA fluid is .' rotated due lAo the boundary layer adhereing to the'disc '~
64 and hub 6.~ being sheared therefrom by rotation o~ tr.c ,' '. , disc,'.and this shearing orce imparting rotary motion to . the'circular body of multiphase 1uid in the confined space .. . .
C. A~ the circular body of ~luid in the confined space C
: rotates clockwi~e, the solid objects in the first ,, liqu'id phase ar~ sub~ected to increasing centriugal orce' : : as ~hey move ou~wardly re,lative to"the hub in a generally ,, ~ ~ .; . , piAral path to be ejected wi~h ~he liquid irst phase ~0 ':; sequentially through the discharge outle~ 58 to 10w,through .
. ,':the conduit 62 to the second location. Fo~.'either s,ingle ',, ' phaso or mul~iphase 1uid to discharge from the discharge, ,, ', outlet 58, ~he rate of ro~ation of the disc 64 and hub 66 mus~ be su~icien-~ as to generate'a rot,ary shearing force .
- .on khe circular body o~ the fluid in the conflned Aspace C
; as,'~o'cause the samè to rotate, and overcome the shearing ; o the boundary layers on the interior surfaces o~ the fiArst , ., -:~ and second side pieces lO and 12 and.end piece 14 that tend ,~
' ~ , . . . ~._ , . . ~ '`,, .
~o resi~t such rota~ion. : . ' modi~icatlon A'-4 oi!~ the ~'ourth ~orm o~' Jche invention is shown in FIG.10, which'includQs a number of . .
,clrcum~erentially spaced pins 42 that pro~ect from the . ~ ; disc 64 towards the irst end piece 10, with the pin~
~` , , engaging pairs of ring-shaped discs 46~ The ring-shaped, !~
, discs 46 in each pair are separated by a spacer 68 mounted ' .
. on one of the pins 42, and the ~pacer resulting in each,' pair of ring-shapéd discs having a ring-shaped space 70 ', 10 . ~ definea therebetween through which fluid may discharge outwardly towards the'end piece 14 a~ the disc 64 and ~'' xing-shaped discs 46 rotate in unison. trhe pairs o~f ring-' shaped discs 46 are separated from the disc 64 and from one another by spacers 72 mounted on the pins 42,, and , . . . .
, ; , . '~, 'these spacers being o~ a soft resilient material such as ' ~ ,,xubber or the like.' ~6 the f luid flows into the conf ined .,; , '~,space C through'.the first opening"l6, the fluid whether .
single phase or multiphase i~ subjected to rotary motion , by rotation of ~he di~c 64 and the paira of adjacently di6posed ring'-shaped disc~ 46. Thi~ rotary motion occurs , due to the shearing o the boundary layer on the disc 64, '.','' and on the ring-shaped di~cs 46, from the balance of the ', ': circular body of flu~d in the confined space C, and '' ,'~'';'',' '''thi6 shearing imparting rotary motlon to the clrcular body . , ~ ,:', of fluid to cause the same to be ejected rom the discharge .'''"
,. ' ' ,'. openiny sa as previ~usly described. The spacing between ',- ,. . .
' ' ' the disc 64 and the pairs o ring-shaped'di~cs 46 must be ,',;
. .
' suficiently grèat that the largest~o~ the solids entrained .~',' with the fluid are,able ~c, pas~ radiaily therethrough.a~
, , , , ~ ; ,; , . .. . .
- 14 - . .. .
., ~ ' ' ' '' 1 ~63862 ~.
.
they descrIbe substàntially spiral path~ prior to being ejected from the discharge opening'58,. The space~ 70 betwe~n ~e pairs o~ ~paced r~ng-~haped di~cs 46'prov~de additional surf~ces on the ring-shaped di~cs 46 that have boundary-layers thereon that axe sheared from the balance ,,s o~'the aircular body of fluid, and increase' the c rcular , :
drag on the circular body of fluid a~ the diec 64 and.pairs of ring-shaped discs 46 rotate relative thereto~ Due to '.
.
', , the increased areas that have boundary layers thereon that rotate relative the circular body o fluid, the drag force .. . . . .
~ imposed on the circular body o flu~d ~ill be suficiently .
. . great as to overcome the resistance drag orce imposed by boundary layexs on the interior suraces,o~ the ~irst and econd side pieces and end pi-¢e 14~ As a re6ult ~iuid . éntering the conined space C may be ¢aused to rotate when , , the shat 30 is,ro,tated at a relatively slow epeed. ~he ~ spa¢ers 72 servé a dual unction, not only o~ main~a~ning the '~ , pairs of ring-shaped discs 46 in latérally spaced relationship ; , ,,with one another, but preventing damage to frangible'ob~ects ~, 'entrained with a liquid or gas as the object and liquid are '' , ~ . , :' ' :' causéd'to fl~w through the modified orm A'-4 of the ~ourth orm of the invention to discharge to the 6econd location .'~
. . .
",~,, through the ~econd conduit 62.
n~ , ' , ;The pump,D illustrated in FIGS..ll a'nd 12 is a ~t;,~,~
, ., ~irst,modiication of the bladeless pump illust~ated ln 'S
' ~ FIG. 8 and has a housing 69 that,includes first and second ., laterally spaced sidé walls 70 and'72 that have exten~ions'~'..
.
. ~ , 70a and;72a that partially define th ` diverging outlet , ~, "
,, 1, , ~ . , . " , , I . . .
.. . .. . . , _ . _, .. .
- ^ :
1~6~86 , ~ructure 74 a~ own ~n FIG. 14. An en~ wall 76 1B
disposed between the fir~t and.second ~ide walls and cooperates ~herewith to define a circular confined spac~
7~ of substantial:width. The end wall 76 has ~paced extensions 76a that cooperate with the extension~ 70a and ~
72a to define the diverging outlet structure 74.'' ;~ "
. The first and second side.walls 70 and 72 on the , ' , ' adjace~t aces thereo~ have circular ribs 70b and 72b that .' project towards one another~an~ are in abutting sealing '' 10 ' ,' contact with oppositely disposed side ~ur~aces o end piece ' , 76. .The end piece 76 as may be seen in FIG. 12 is o , .
. , greater thickness than the'depth of ~he ribB 70b and 72b and . coopèra~es with thè ribs to dePine irst and second clrcular ' ~reces~e~ 80 and 82 shown in FIG. 12.
, , ' First side wall 70 has a centered irst opèning 84 therein that serves as a fiuid inlet. ~,1uid conducting i~ting 86 is secured to the exterior surace o first ~ide ;' wall 70.as i~lustrate'd in F~GS. 11 and 12. The fitting ~,' ',dc~ines a generally circular cavity 88 within the interior ' , thereo that is o su~stantially greater diameter than the first centered opening 84 in irst ~,'de wall 70, which irst , opening serves as a fluid inlet. Cavity 88 and irst opening ' ' ' 84 are in communication but of~ centered relative to one , 'another. Cavity 88 i8 also in commùnic,at.ion with a longitudinal .passage 90 in a first conduit 92 that extends to a ~irst ,;location ~not shown) where the 1uid to be pumped i~ situated.
' The passage 90 is tangentially disposed.relative to cav~ty 88.
Pluid entering the cavity 88 from pas~age 90 ha~ in~tial~ .
,. ~ .
,,, , ' - . , ' ' ,, , ' ' - .
- 16'-`
, ' ,~ .
, .
xotary motion imparted thereto prior to discharging into conined space 78 through the first opening 84. The ~rst . . .
~ide wall 70 has a ring-shaped bo~ 94 projecting lnw,ardly ; from the interior surface thereof a~ 6hown 'in FIG. 12, which boss sùrrounds irst opening 84. Boss 94 supports,a ~
....
', bearing 96 that in~turn rotatably support6 a ~irst circular plate 98 that~has ~he circumferential edge portion slidably and'rotatably disp~osQd in ~irst circular recess 82.
, '~ibs 70b, 72b and end piece 76 have spaced transverse bores ~-'' 10 ' ~not shown) therein through which bolts 100 extend that hold , , , the housing,together as an integral unit.
Second side wall 72 has a second opening 102 ,therëin that is prefcrably axlally aligned with first opening ' 84, A power driven shat 104 extends into confined space 78 through ~econd opening 102, and i5 rotat'ably ~upported by a ', bearing and sea,l 106 that i8 preferably 8ecured to the , ' exterior surace of second side waii 72. The shat 104 has , an externally threaded 6~0uldered end portion 108 situated ' ' ' ~ within confined space 78 that extends through an opening
A major object of the present invention is to provide a bladeless pump and method of using the same to trans~er either a single phase ~luid or multiphase fluid from a first location to a second location without damaging the material that comprises the inner phase, even when the inner phase is of an extremely frangible nature such as the red blood cells in blood.
Another object of the invention is to furnish a bladeless pump that may be used to pump such diverse materials as fruits, vegetables and berries, as well as marine animals that include fish, shrimp, crustaceans and the like from a first to a second location when the materials from the inner phase of a fluid in which the outer phase is a liquid.
~ et another object of the invention is to provide a pump that is substantially free from cavitation and erosion, and one that is capable of transferring a liquid that tends to froth from one location to a second location with a minimum of frothing.
A still further object of the invention is to supply a bladeless pump that is capable of efficiently pumping air or liquid slurries, particularly liquid slurries that have a high solids content and may contain paper, cloth, and fibrous materials such as occur in sewage, and also slurries that contained a high percentage of solids in the inner phase thereof, such as pulverized coal in coal slurry.
A still further object of the present invention is to provide a bladeless pump capable of efficiently handling hot geothexmal multiphase fluids that contain water, dissolved solids in the water, steam and gas vapors.
C
1 ~638~2 The bladeless pump that includes a housing that defines a circular confined space of substantial width into which either a single phase fluid or multiphase fluid is sequentially introduced through a centrally disposed inlet in a first side of the housing to be subjected to boundary layer rotational drag by at least one substantially smooth disc that rotates in the confined space intermediate the first and second side pieces of the housing and parallel thereto. The pump is capable of pumping a multiphase fluid æuch as that from a geothermal well that includes water, dis301ved solids, steam and gas vapor, or a fluid in which the outer phase is water and the inner phase may range through such diverse materials as particled coal, marine animals such as fish, shrimp and crustaceans, and edibles that include fruits, vegetables and berries, as well as metallic object~ of which steel ball bearings is an example. The pump has the capability of pumping beer without appreciable frothing the latter. Also, the pump is particularly adapted for pumping a multiphase liquid in which the inner phase is extremely frangible, of which blood is an important example. The boundary layers on the rotating discs prevent objects in the inner phase of a fluid contacting the discs and as a result there is little or no abrasion of the latter.
Also, the boundary layers on the discs protect the latter from contact with bubbles in the fluid, and as a result there is no cavitation on the discs due to abrupt collapse of the bubbles.
Q ; ~ .
. . : .
BRIEF DESC~IPTION OF ~HE D~WING8 , .
. - F~G~ 1 i8 a perspective view of the bladeles~
, pump '' : . ' ' '';' ,- "
FIG. 2 i~ a side eleva~ional view o the pump~
.: .. . . ~: . . . :
~ : : shown in ~G. ls, . : ~
. . . . . .
:.". . ............................. .
. . FIG.'3 is a tran~verse cros6-~ectional view .. . , . ~
o the pump shown in FIG. 2 taken on the line 3-3 .
;
. thereon, and 111u6trating a first form of the pumps .
~ PIG. 4 is a combined vertical cross-sectional : 10 ':,' , and side-elevational view of the pump ~hown in .. . . .
; . F~G. 3, and taken on the line 4-4 thereof~
. , .
,, ~ . ,, , :
' FIG. 5 is a transverse cross-seational ~lew : , , , .. "
: ; ~ of a seao~d form of the bl,adeless pump~ , ~ . . . ..
.FIG. 6 is a transverse cross-~ectional,view .
' of a third form of the bladele6s pump;
, : ~ ' , . ' i .; ' .
.. . .
' ' , . 'FIG. 7 is a transverse cross-sectiona~ view ~ , .of a modifi¢ation of the ~irst'~orm.'.~ the pump~
.. . . . . . .
. .
.
. . .
: .F~G. 8 is a transver~e aro~s-seational~iew , '. of a fourth form o~ the b~a~eies~'pump~ .
, . . . .. . .... . . .
, , ~' ' ,; , , _ , ..... . ..
. .
~163862 ~, .
:
FIG. 9 is a combined vertlcal cross-sectional .
an~ side elevatlonal view o~ the ~ladeles~ pump shown in F~G. 8, taken on the llne 9-9 thereot - ` F~G. 10 i8 a fragmenta n transverse cross~
! , ectional view o a modification o the fourth ?
form o biadeless pumps . FIG. 11 is a side elevational view of the bladele~s pump shown in FIG. 8 with a modified . ~ . . ; form o housLng, with the fitting and first conduit being shawn in ~ection to illustrate the , ¢ircular cavity in the fitting that i~ of-centered relative to the ~ir~t opening in the first side wall . . , to impact initial circular motion to fluid through ~he ~itt~ng ~rom the ~irst conduit prior to the 1uid entering the co~lned spaoe with~n the pump housing~ -"' '"'' .'" ''' ' ~ ' ,,, . ,; . . .
~IG. 12 is a horizontal cross-sectiona~ vie~ ,:
o.a first modification oi the pump etruGture shown ~ in F~G, 8 that employ~ the hou~lng illustrated : in FIG. 11s FIG. 13 is a horizontal oross-sectional view o a irst môdification of the pump ~tructure ; shown in FIG. 3 that employ~ tbe,hou~ng ~tructure . : illustrated in FIGS. 11 And 12s b .
Fig. 14 is a perspective view of the pump shown in Fig . 11 b~t modified to have the first conduit normal to the side walls thereo~ and centered relative to the inlet opening in the first side wall.
Fig. 15 is a horizontal cross-sectional view of a second modification of the pump structure shown in Fig. 8;
Fig. 16 which is on the same sheet as Fig. l, is a perspective view of a second modifi-cation of the pump shown in Fig. 3, and Fig. 17 is a longitudinal cross-sectional view of the pump shown in Fig. 16 taken on the line 17-17 thereof.
Each of the various forms of the invention and the modifications thereof specifically identified in the above description of the drawings, include the pump housing a8sembly B and D shown in Figs. l and 11. Pump housing assembly B includes first and second, laterally spaced side pieces lO and 12 that are illustrated in the drawings as having lower horizontal edges lOa and 12a that are adapted to rest on or be secured to a suitable supporting surface (not shown).
The first and second side pieces 10 and 12 have a circular end piece 14 extending therebetween, which end piece is secured to the side pieces by screws 15 or other suitable fastening means. Side pieces 10 and 12 and end piece 14 cooperate to define a vertically extending, circular confined space C of substantial width.
G
1 163862 ~ .
.
The first side piece 10 ha~ a fir~t'openi~g 16 ' ' therein that is centered relative to the circular end piece 14. ~ fi~ting 18 is in fixed sealing rèlation6hip with the exterior s,urface of the flr6t side piece 10. The fittin~ 18 has an o~f ~entered first passage 20 defi'ned in the interior, thereo~ that is i~ ~ommunication with;:the ~first opening 10, as well as the interior of a first upwardly and outwardly extending conduit 22. The passage 20 i8 of s~ch curved coniguration that initial rotary motion i6 imparted to the fluid'flowing therethrough prior to the fluid entering the confined space C. The first conduit 22 extends to a ir6t location ~not shown)' at which the fluid to be pumped i8 stored or iB available to be pumped.
A second opening 24 i~ ~o,rmed in the 6econd end piece I2 and i8 preferably coaxially aligned with the fir6t openlng 16. The second opening 24 has a bearing 28 operatively associated therewith, and the bearing supporting a shaft,30 .
- ~ ,'' that extends into the con~ined spac-'C and i~ normally "" ~ ' disposed to the second end piece 12. A seal 28 is mounte~
.
,20 , ~ on,the exterior portion of the end piece 12 and ~s in ~' ', rotatable sealing engagement with the shaft 30~
" , ' The sha~t 30 ha~ an interiorly position shouldered end por~ion 32. The end portion 32 of the shaft 30 most , ,, ' ~' remoté ~rom the s'ëcondL~nd~ipi~ec~,12 ~s i~lustrate~d as~eing ., . ~ , . J ,:
, , drlven by a prime mover' 34, wuch as an electric motor or the e. ~ flat disc 36 is dis~osed within'the confines of the ' " . -. ...
~ confined space C, with-the disc having a centered opening , therein through which;the,~houidered end portion 32 of th,e .. ~, ~ ,. . .
', " , ;~ , shaft 30 extends. An apertured plate 38 is mounted on the first end portion 32 of the shaft 30, and is urged into pressure abutting contact with the central portion of the disc by a nut 40 that engages the first end 32. When the nut 40 is tightened the disc 36 is frictionally gripped between the shouldered end portion 32 and plate 38 and cannot rotate relative to the shaft.
A number of circumferentially spaced pins 42 are illustrated in Fig. 3 as projecting from the disc 36, with the pins having externally threaded free end portions adjacent the first side piece 10 that are engaged by nuts 44. A
number of ring-shaped discs 46 are provided and disposed within the confined space C as shown in Fig. 3, with the ring-shaped discs having a number of circumferentially spaced openings therein that engage the pins 42. Spacers 50 are mounted on the pins 42 and situated between the ring-shaped discs 46, with the discs defining ring-shaped spaces 52 therebetween. The ring-shaped discs 46 have inner peripheries 54 that are axially aligned and cooperate to define a transverse second passage 56 as shown in Fig. 3, which second passage is in communication with the ring-shaped spaces 52 defined between the ring-shaped discs 46.
When the disc 36 and ring-shaped discs 46 are rotated concurrently by the prime mover 32 driving the shaft 30, fluid that has entered the confined space C tends to rotate therein as a circular mass. In Fig. 4 it will be seen that this circular mass of fluid rotates in a clockwise direction and as the fluid so rotates it discharges through a tangentially disposed discharge outlet 58 in the upper portion of the housing B to subsequently flow through a diverging tubular member 60 to a second conduit 62 which C
conduit leads to a second location (not shown) at which it is desired to pump the fluid. The tubular member 60 is illustrated in Fig. 1 as formed from extensions of the side walls 10 and 12 and end wall 14. Fluid in flowing through tubular member 60 decreases in velocity with an accompanying increase in the static pressure head thereon.
When prime mover 32 is rotating the disc 36 and the ring-shaped discs 46 concurrently as a unit, boundary layers of the fluid will adhere to the disc 36 and ring-shaped discs 46 adjacent the ring-shaped spaces 52. Such boundary layers adhere to the disc 36 and ring-shaped discs 46 and occupy substantially fixed positions thereon. These boundary layers are sheared from the balance of the fluid in the confined space C as the disc 36 and ring-shaped discs 46 rotate, and this shearing imparting sufficient rotary force to the circular body of fluid in the confined space to cause the circular body of fluid to rotate in a clockwise direction. As the fluid so rotates in the clockwise direction a portion thereon flows through the discharge outlet 58 and ultimately through the member 60 and second conduit 62 to the second location (not shown). As fluid leaves the housing B as above-described, additional fluid flows into the confined space C from the first passage 20.
The fluid in entering the second passage 56 has a low rotational velocity. As fluid is discharged from the outlet 58, this fluid that has entered the second passage 56 tends to flow outwardly through the spaces 52. The spaces 52 are each in width substantially greater than twice the thickness of the boundary layer of fluid on the ring-shaped discs 6 that define the ring-shaped spaces 52 to provide maximum shearing force on the outwardly moving fluid.
C
The outwardly moving fluid is subjected concurrently to two forces, the first being a tangentially directed force, and the second a centrifugal force, with the centrifugal force increasing as the fluid moves outwardly from the second recess 56. As a result of these two forces, fluid after entering the second recess 56 and discharging thexefrom, pursues a spiral path prior to discharging from the discharge outlet 58.
The interior surfaces of the first and second side pieces 10 and 12, as well as the end piece 14 also have boundary layers of fluid that tend to adhere thereto, and as the circular body of fluid rotate in the confined space C, the shearing of these boundary layers from the rotating body of fluid tends to restrain the rotation of the body of fluid in the confined space. Thus, the rate at which the flat disc 36 and ring-shaped discs 46 are rotated concurrently must be at such a rate that the drag force imposed on fluid moving outwardly through the ring-shaped spaces 52 is sufficient to impart rotary motion to the body of fluid in the circular confined space and overcome the tendency of the boundary layers on the interior surfaces of the first and second side pieces 10 and 12 and end piece 14 to resist such rotary motion.
o- o`
, . , . . ll63s6a Xn ~he ~orms o~ the invention ~o~n i~ PIGS~ 12, 13 a~d 15, tl~is resisti~g tendency is minimize~ by the side sur~aces : ~hat dc~ine the confined space C being free to ro~a~e with ~ho circular body of fluid. Under'such circumstance~ there ,i5 a minimum differentlal between the rate o rotation o~
the circular body o~ 1uid and the side suxfaces that -par~ially de~in~ this body o fluid.
~ The first form A-l of the invention above-described : is capable o being used to pump either single phase or 0 ~ multiphase ~luid from a irst location to a second loca~ion.
When a'multiphase fluid is being pumped in which the first .phase is a liquid or gas, and the second phase a number o' sp?ced solid objects,Othe spaces 52 must be of suficient ' ' wid~h as to allow.the objects o~ largest cross section to ; :
move therethrough with the gaseous or liquid phase with ' which they are associated.
: . From an experience it has been ound that the 'boun~ary layers o a 1uid, either gaseous or a liquid, are no~ penetrated.by solid objects entrained therewith, and as . a result when a multiphase ~luid is being pumped that contains .
~'solid objects, these objects will not contact the inner sur~ace o the housing assembly B or tha sur~acos of the .' disc 3G or ring-sha'ped disc6 46. 'Thus, the.'solid objects .
havé minim'um abrasive'a~ion on the surf~ces o~ the pump' during the'passage there^through. ~he pump A is also ~ree "
o aavitation, .for bubbles entrained with the 1uid are not physically conta'cted by any li.~tin~ sur.~aces and.pass between the discs. They enter the pumn as bubbles anfl . . ~
' discharge rom the pump as bubbles, although smaller as a a , . ~ ' rësult o ~he increased pressure a~ the discharge.
, ., ~ .
.
The second form o the'invention A-2 ~hown in FIG. S is similar to thè fir6t fonm, other than that the disc 36 and the ring-shaped discs 46 have outer pexipher,al portions that taper towards one another and are identiied ' ' on the drawing by th~ notation 36a,and 46a. Due to the , '~ above-mentioned cons~ruction in the second form A-2 of the pump, ~he fluid wili tend to remain in the spaces 52 a ' greater length o time, and will be subjected to rotary ~ shear'or a grea~er,length o time, to be delivered ~o the ~ discharge outlet 58 at a higher pressure than would normally be achieved when the first form A-l o the pump is used.
' ~,n F~G. 5 it will be seen that the second form A-2 of : pump al80 hàs the outer peripheral portions o the f ir8t.
~'',' ;' and second ~ide piecés lOa and 12a tapering inwardly ; towards one another.
' The third orm A-3 of the pump i8 ~hown in F~G. 6 .
di~ers ~rom the ~irst form A-l oniy in that the ring-shaped ' , disas '46 are not of uniorm wall thic~nes6, but taper , ' ~, outwardly from the inner periphery 54 thereo and are of ~ maximum thickness at the outer periphery of the'discs. The ring-shaped discs i6 o the above-described structure resul~
~,' in ring-~haped spaces 52 being de~ined therebetween when '~
~paaers 50 are mountéd on the pins 42', which ring-shaped spaces are of maximum'width adjace~t inne~periphery 54 and ' ,;~, are of minimum width adjacent the outer periphery of the ring-shaped di~cs 46. By varying the wall thi¢kne~ o the ', ~, . : ,, ,, , ~ . . .. .
. .
;, ~ ~ : .
~' , : ~.' ' '`
,; . .
- - \
'~' ring-shaped discs 46 as shown in FIG. 6, the ro~ary boundary layer drag on the flu~d as it rotate~ ae a c~rcular -body within the confined epac~ C, may b~ conveniently ~, , . . .
varied, to provide fluid at the di~charge outlet 58 o a ,,desired pressure., In F~G. 7.a modification ~'-l o~ the fir6t form ;~
oP the invention is shown, with the diied form A'-l varying from the first form only in'that the inner periphcr~
, ~ 5i of the ring-ehaped discs 46 vary in diameter, and this, ; 10 ~ variance in diameter varying the area of,the surfaces of ;the ring-shaped discs 46 that may impo6e a rotary motion ~ '' '' to the'circular body of the fluid in the confined epace C, ~ a~ ~hé ring-ehaped discs 46 and disc 36 rotate relative ' '' ' , ~,thereto.
.: . , , ~ ' The fourth form A-4 of the,inv~ntion as shown in'~, ~
. ., ~ ~ , ~ , , IG, 8 differs ~rom the first orm A-l in that the flat ,~ ~, "' dlsa'36 and ring-6haped discs 46 ar~ removed rom the ', . , . ~ .
irst orm and replaced b~ a single disc 64 that hae a centered hub 66 that has an opening therein that engages ~,20j;,',, , ~ th,e ~houldered end 32 of the shat 30 and ~5 held thereon ' , . by a nut 40 . The hub 66 is illustrated in F~G. 8 ae having , "
the ma~or portion thereo curve ratially in a stream line ~, :, ~,. . . .. . . .
,'~, , ~,',', con~iguration. The diec 64 ae may'~e seen in F~G. 8 extend~
','',, ~ towarde the int~rior 6urfa¢e o the eecond ~ide pi-ce 12. The ' fourth orm A-4 of the pump ie particularly adapted ~or u6e ~n tran~férring m~lti ~ fluid ~rom a ~r~ to a ~xnd ~ocatlon, 6uch ao , , . ~ ~ ' ' , : ' , J , . , ._ . .
~ 10/26/77 1 163862 ~ -, `: .: , .
. .
wllon tl~o ~ t ~>hn~o i~i a liqu~ nd 1:ho Gccond pha~
num~er o 0~ CC~5, such as pot~atoes, ch~rry ~omatoos, ~r~i~s, vcgc~ble~,~ and marin~ animals ~nclu~ing' fish, sl~rimp, and ~he like. Whcn the confined space C h~As ~o~n . ' fill¢d with a mul~iphase fluid ~rom the fir~t location ~ as previously describcd, the primc mover 32 is actua~ed ~1 to cause rotation`of the disc 64', and thi~ disc ~1han .rotated i~ a counterclockwise direc'tion as viewcd in~F~G. ~
' i~parting circular motion to the circular body o ~lui~ .
' within tle conined space C. ~he body oA fluid is .' rotated due lAo the boundary layer adhereing to the'disc '~
64 and hub 6.~ being sheared therefrom by rotation o~ tr.c ,' '. , disc,'.and this shearing orce imparting rotary motion to . the'circular body of multiphase 1uid in the confined space .. . .
C. A~ the circular body of ~luid in the confined space C
: rotates clockwi~e, the solid objects in the first ,, liqu'id phase ar~ sub~ected to increasing centriugal orce' : : as ~hey move ou~wardly re,lative to"the hub in a generally ,, ~ ~ .; . , piAral path to be ejected wi~h ~he liquid irst phase ~0 ':; sequentially through the discharge outle~ 58 to 10w,through .
. ,':the conduit 62 to the second location. Fo~.'either s,ingle ',, ' phaso or mul~iphase 1uid to discharge from the discharge, ,, ', outlet 58, ~he rate of ro~ation of the disc 64 and hub 66 mus~ be su~icien-~ as to generate'a rot,ary shearing force .
- .on khe circular body o~ the fluid in the conflned Aspace C
; as,'~o'cause the samè to rotate, and overcome the shearing ; o the boundary layers on the interior surfaces o~ the fiArst , ., -:~ and second side pieces lO and 12 and.end piece 14 that tend ,~
' ~ , . . . ~._ , . . ~ '`,, .
~o resi~t such rota~ion. : . ' modi~icatlon A'-4 oi!~ the ~'ourth ~orm o~' Jche invention is shown in FIG.10, which'includQs a number of . .
,clrcum~erentially spaced pins 42 that pro~ect from the . ~ ; disc 64 towards the irst end piece 10, with the pin~
~` , , engaging pairs of ring-shaped discs 46~ The ring-shaped, !~
, discs 46 in each pair are separated by a spacer 68 mounted ' .
. on one of the pins 42, and the ~pacer resulting in each,' pair of ring-shapéd discs having a ring-shaped space 70 ', 10 . ~ definea therebetween through which fluid may discharge outwardly towards the'end piece 14 a~ the disc 64 and ~'' xing-shaped discs 46 rotate in unison. trhe pairs o~f ring-' shaped discs 46 are separated from the disc 64 and from one another by spacers 72 mounted on the pins 42,, and , . . . .
, ; , . '~, 'these spacers being o~ a soft resilient material such as ' ~ ,,xubber or the like.' ~6 the f luid flows into the conf ined .,; , '~,space C through'.the first opening"l6, the fluid whether .
single phase or multiphase i~ subjected to rotary motion , by rotation of ~he di~c 64 and the paira of adjacently di6posed ring'-shaped disc~ 46. Thi~ rotary motion occurs , due to the shearing o the boundary layer on the disc 64, '.','' and on the ring-shaped di~cs 46, from the balance of the ', ': circular body of flu~d in the confined space C, and '' ,'~'';'',' '''thi6 shearing imparting rotary motlon to the clrcular body . , ~ ,:', of fluid to cause the same to be ejected rom the discharge .'''"
,. ' ' ,'. openiny sa as previ~usly described. The spacing between ',- ,. . .
' ' ' the disc 64 and the pairs o ring-shaped'di~cs 46 must be ,',;
. .
' suficiently grèat that the largest~o~ the solids entrained .~',' with the fluid are,able ~c, pas~ radiaily therethrough.a~
, , , , ~ ; ,; , . .. . .
- 14 - . .. .
., ~ ' ' ' '' 1 ~63862 ~.
.
they descrIbe substàntially spiral path~ prior to being ejected from the discharge opening'58,. The space~ 70 betwe~n ~e pairs o~ ~paced r~ng-~haped di~cs 46'prov~de additional surf~ces on the ring-shaped di~cs 46 that have boundary-layers thereon that axe sheared from the balance ,,s o~'the aircular body of fluid, and increase' the c rcular , :
drag on the circular body of fluid a~ the diec 64 and.pairs of ring-shaped discs 46 rotate relative thereto~ Due to '.
.
', , the increased areas that have boundary layers thereon that rotate relative the circular body o fluid, the drag force .. . . . .
~ imposed on the circular body o flu~d ~ill be suficiently .
. . great as to overcome the resistance drag orce imposed by boundary layexs on the interior suraces,o~ the ~irst and econd side pieces and end pi-¢e 14~ As a re6ult ~iuid . éntering the conined space C may be ¢aused to rotate when , , the shat 30 is,ro,tated at a relatively slow epeed. ~he ~ spa¢ers 72 servé a dual unction, not only o~ main~a~ning the '~ , pairs of ring-shaped discs 46 in latérally spaced relationship ; , ,,with one another, but preventing damage to frangible'ob~ects ~, 'entrained with a liquid or gas as the object and liquid are '' , ~ . , :' ' :' causéd'to fl~w through the modified orm A'-4 of the ~ourth orm of the invention to discharge to the 6econd location .'~
. . .
",~,, through the ~econd conduit 62.
n~ , ' , ;The pump,D illustrated in FIGS..ll a'nd 12 is a ~t;,~,~
, ., ~irst,modiication of the bladeless pump illust~ated ln 'S
' ~ FIG. 8 and has a housing 69 that,includes first and second ., laterally spaced sidé walls 70 and'72 that have exten~ions'~'..
.
. ~ , 70a and;72a that partially define th ` diverging outlet , ~, "
,, 1, , ~ . , . " , , I . . .
.. . .. . . , _ . _, .. .
- ^ :
1~6~86 , ~ructure 74 a~ own ~n FIG. 14. An en~ wall 76 1B
disposed between the fir~t and.second ~ide walls and cooperates ~herewith to define a circular confined spac~
7~ of substantial:width. The end wall 76 has ~paced extensions 76a that cooperate with the extension~ 70a and ~
72a to define the diverging outlet structure 74.'' ;~ "
. The first and second side.walls 70 and 72 on the , ' , ' adjace~t aces thereo~ have circular ribs 70b and 72b that .' project towards one another~an~ are in abutting sealing '' 10 ' ,' contact with oppositely disposed side ~ur~aces o end piece ' , 76. .The end piece 76 as may be seen in FIG. 12 is o , .
. , greater thickness than the'depth of ~he ribB 70b and 72b and . coopèra~es with thè ribs to dePine irst and second clrcular ' ~reces~e~ 80 and 82 shown in FIG. 12.
, , ' First side wall 70 has a centered irst opèning 84 therein that serves as a fiuid inlet. ~,1uid conducting i~ting 86 is secured to the exterior surace o first ~ide ;' wall 70.as i~lustrate'd in F~GS. 11 and 12. The fitting ~,' ',dc~ines a generally circular cavity 88 within the interior ' , thereo that is o su~stantially greater diameter than the first centered opening 84 in irst ~,'de wall 70, which irst , opening serves as a fluid inlet. Cavity 88 and irst opening ' ' ' 84 are in communication but of~ centered relative to one , 'another. Cavity 88 i8 also in commùnic,at.ion with a longitudinal .passage 90 in a first conduit 92 that extends to a ~irst ,;location ~not shown) where the 1uid to be pumped i~ situated.
' The passage 90 is tangentially disposed.relative to cav~ty 88.
Pluid entering the cavity 88 from pas~age 90 ha~ in~tial~ .
,. ~ .
,,, , ' - . , ' ' ,, , ' ' - .
- 16'-`
, ' ,~ .
, .
xotary motion imparted thereto prior to discharging into conined space 78 through the first opening 84. The ~rst . . .
~ide wall 70 has a ring-shaped bo~ 94 projecting lnw,ardly ; from the interior surface thereof a~ 6hown 'in FIG. 12, which boss sùrrounds irst opening 84. Boss 94 supports,a ~
....
', bearing 96 that in~turn rotatably support6 a ~irst circular plate 98 that~has ~he circumferential edge portion slidably and'rotatably disp~osQd in ~irst circular recess 82.
, '~ibs 70b, 72b and end piece 76 have spaced transverse bores ~-'' 10 ' ~not shown) therein through which bolts 100 extend that hold , , , the housing,together as an integral unit.
Second side wall 72 has a second opening 102 ,therëin that is prefcrably axlally aligned with first opening ' 84, A power driven shat 104 extends into confined space 78 through ~econd opening 102, and i5 rotat'ably ~upported by a ', bearing and sea,l 106 that i8 preferably 8ecured to the , ' exterior surace of second side waii 72. The shat 104 has , an externally threaded 6~0uldered end portion 108 situated ' ' ' ~ within confined space 78 that extends through an opening
2~ not shown) in the hub portion 110 of a disc 112 that has a ,' ... . . .
diameter less than that of the confined space 78. A nut ~, ~, ' 113 engages threaded end portion 108 and ~erves to removably secure disc 112 thereto. The dis¢ 112 preferalby includes a reinforcing structure 114 in engageme,nt with shaft'10,4.' ;, A second circular plate 114 iB rotatably suQported on shaft 104 and is disposed between di~c 112'and the .. . .
~' interior surface o the second ide wall 72. Second plate 114 i6 o such diameter that,~the~peripheral èdge portion the~reof ~' , -'~ " ' ", - . : .
~ 17 - ' ' ' _ ~ . .
.
is ro~atably dispo~ed in the second circular recess 82.
' When driven sha~t 104 rotates,di~c 112 rotates concurrently therewith. Fluid tha~ has initial rotation imparted thereto in ~itting 86 flows into conPined ~pace , 78 and due to rotational drag imparted thereto by'disc 112 '!
,r~tates in the confined space 78 i8 6ubjected to a mini~um re-~training force in ~he housing 69 as the first and 6econd ' pl~ates 98 and 114 are free to rotate therewith. The ~luid ',f , as it rotates in confined,space 78 6equen~ially 10ws , through the diverging discharge structure 74 to a second ' conduit 114 that leads to a second location (not ~hown) ,to . .
; ~ , which it is desired tO tran6fer the fluid. Shaft 104 is ~ , , .
' maintained by conventional means ~not shown) at a ~ixed ' position relative to houeing 69. The disc 112 i8 separated ~'' rom se¢ond plate ~14 by a 8pace 116.
~he pump E illustrated ~n FIG. 13 employs the '~ ' ,assembly o~ elements common to the pump D, but with the disc 112 being replaced by a rotor assemb~y 120. Elements of the ' ,, pump E common to the pump D illustrated in F~G. 12 are ' ,, 20 , identified by the numerals previously used but with primes . . . .
, being added thereto.
The disc 112 o~ pump D is replaced by a flat first idisc 122 in pump E that orms a part o~ ~otor assembly 120. '' , ~
Disc 122 has a number o ciraumerentially spaced pins 124 projecting therefrom that extend toward~ first side wall 98'.
The pins 124 serve to support a number o second di~c~ 126 thereon which discs are o~ ring-~hape and are hel~ ~n ~paced ,, rélationship wi~h one another in the same manne~ as desc~bed, , = 18 -. . .
, . . . .
... . . .. , __.. _. ,. .,_ .. . ...
: ': in de~ail wi~h t~e pump illu6trated in FIG. 3. ~he inner . :
peripheries 12a of the second diocs 126 define a secoDd ,~. . transverse passa~e 130 that i8 in communication with ring- ' . shaped spaces 132 formed between the second di6cs 126,. ~ ~
The second pump E operates in the same'manner~as the pump ' ;~:"
111ustrated in FIG. 3,'but requires less~power eo operate '.'..
as the first and ~edond plates 98' and 114' are ree to ~ r~tate with the rotating body of fluid in the confined space :,, ~.,': 78'. Thus, as the body of fluid rotates in the confined ' :j space 78' there is a minimum in the differentlal in the rate ' o rotation o~ the body o fluid and the~side plates 98' ..
:, :,, ! ' 'and 114'~ , ' . The pump F ~hown in F~G. 14 ~ o the same internal ',v ' , , structure as pump D illustrated in FIG. 11, and differs from , pump D in that itting 86 i~ eliminated, with first conduit 92 being disposed normal to the pump hou8ing and in d~rect , .
':communication with first opening 84~
, .: , .. : :., ~ ,The pump G shown in F~G. 15 ~ 6 o~ the same ,, ~,,,,~' . ' general structure as the pump D, and differs from the'latter , ~'20 ' ; by:having the second plate 114 omitted, and the disc 112~ of , such diamete'r that the peripheral portion thereof is ~, i, :, ~ ;,rotatably di~posed in 8econd rece~s 82~. Elements in pump G ' , ,,:; .common to pump D are identi~ied on the dra~ing8 by the same , numerals previously used but with double primes being added ., , "'~, thereto. Pump,G operates in the same manner a8 pump D ' ,,. :
illustrated in FIG'.' 12. Pumps.D and a a,re particularly ;.
adapted or pump~ng mult 4has- flolds~ in whioh the inner~
phase-.has:a high-content of 601ids ana may contain piece~,of '', ~ .
. ' 19 ' . . .
, .
-, . ' , .
, ,. ' .
paper, rags and other ibrous or stringy materials. Such materials ha~e no adveree ~ffect on the operatio~ o the~e pumps.
, Th~ pump~ D and G axe useful in transferring objects, either animate or inanimate from a first location -~ to a second location. The objects are mixed with fluid at a first location tO provide a mult$phase 1uid in which the ~-outer phase is ~luid and the i~ner pha~e the objects. The ob~ects may have such diverse physical characteri~tics as those commo~ to vegetables, fruits and berrie~, as well as to fi~h, shrimp, crustacean6 and the li~e, as well as to . .
granular materials such as powdered coal. Th~ multiphase fluid may also be either a liquid or air slurry, raw or partially treated ~ewage and the like.
The pump J illustrated in FIGS. 16 and 17 includes ";,.";
a housing 200 ~hat i9 ~e1ned by two laterally spacea side pieces 202 and an arcuate end piece 204 that extends there-between ~o deine a circular conined space 206. The end pieae 206 has extensions projecting thererom that cooperate with extensions o the side pieces 204 to de~ine a fluid disaharge 208 that is preerably o diverging coniguration.
The side piece 202 have transversely alignèd 1uid inlet openings 210 therein as may best be seen in FIG. 17. ;;
Fluid may 1OW rom a source ~not shown) through a conduit 212, which conduit develops ad~acent the pump J
into a pair o conduit extension~ 214 o~ le~ser transver~e cros~-section that are in communication with the inlet openings 210. The conduit extens1ons 214 have laterally spaced bosses 216 pro~ec~ing outwardly therefrom, with the .
-` 1 163~62 ~
bos~as bo~ng axially al~gned and oentexe~ relatlve to the inlet ope~ing 210. Each boss supports a bear~ng 218 and a low pres~ure seal 220, both o~ which may be o~ conventlonal present day de~ign.
The bearings 220 rotatably 8upport a shat'222 that i5 in sealing engagement with the seals 220, a~d the shaft ex~endi~g,~ran~versely acros~ confined space 206.
Shaft 222 by a coupling 224 is connected to the drive shaft 226 of a prime mover 228, preferably an elec~ric motor.
~ Shaft 222 at the center of confined space 206 has ' a circular plate 230 of substantial strength secured thereto.
A number o~'elongate, circumferentially fipaced rigid members .
232 extend outwardly equal distances rom oppo~ite sides'of the plate, which member~ may be bolts or the like. The '' members 232 in cooperation with spacer~ 234 mou~ted thereon serve'to support two sets of ring-shaped discs 236 on opposite sides of the plate 230. The ring-shaped discs 236 have axially aligned centered opening 238 therein. ~he ~ , -; ',ring-shaped disc~ 236 ln each set are separated by ~pa¢es 240. ' ' ' , '"'' When prime mover 228 i~ operating, the plate 230' and the two sets o ring-shaped discs 236 are rotated concurrently. Fluid is drawn into the conined space 206 ' through inlet openings 210 at the same rate and exerts ' ~'oppositely directed orces on the plate 230, and as a result the sha~t 222 has no appreciable longitudinal thrust exerted thereon. The ~luid ater en~ering conined'space 206, is di6charged thererom through 1uid d~saharge ios in the ~ame manner a~ in pump A-l ~hown in ~IG. 3. ;,~' The bladeless pumps have been described previously' in detal as to structure and the method,o~u~ing the oame and need no~ be repeated. , , , ' , ' , . . . ....... . . .. .... . . .
.. . .... .. .. .. .. . ..
diameter less than that of the confined space 78. A nut ~, ~, ' 113 engages threaded end portion 108 and ~erves to removably secure disc 112 thereto. The dis¢ 112 preferalby includes a reinforcing structure 114 in engageme,nt with shaft'10,4.' ;, A second circular plate 114 iB rotatably suQported on shaft 104 and is disposed between di~c 112'and the .. . .
~' interior surface o the second ide wall 72. Second plate 114 i6 o such diameter that,~the~peripheral èdge portion the~reof ~' , -'~ " ' ", - . : .
~ 17 - ' ' ' _ ~ . .
.
is ro~atably dispo~ed in the second circular recess 82.
' When driven sha~t 104 rotates,di~c 112 rotates concurrently therewith. Fluid tha~ has initial rotation imparted thereto in ~itting 86 flows into conPined ~pace , 78 and due to rotational drag imparted thereto by'disc 112 '!
,r~tates in the confined space 78 i8 6ubjected to a mini~um re-~training force in ~he housing 69 as the first and 6econd ' pl~ates 98 and 114 are free to rotate therewith. The ~luid ',f , as it rotates in confined,space 78 6equen~ially 10ws , through the diverging discharge structure 74 to a second ' conduit 114 that leads to a second location (not ~hown) ,to . .
; ~ , which it is desired tO tran6fer the fluid. Shaft 104 is ~ , , .
' maintained by conventional means ~not shown) at a ~ixed ' position relative to houeing 69. The disc 112 i8 separated ~'' rom se¢ond plate ~14 by a 8pace 116.
~he pump E illustrated ~n FIG. 13 employs the '~ ' ,assembly o~ elements common to the pump D, but with the disc 112 being replaced by a rotor assemb~y 120. Elements of the ' ,, pump E common to the pump D illustrated in F~G. 12 are ' ,, 20 , identified by the numerals previously used but with primes . . . .
, being added thereto.
The disc 112 o~ pump D is replaced by a flat first idisc 122 in pump E that orms a part o~ ~otor assembly 120. '' , ~
Disc 122 has a number o ciraumerentially spaced pins 124 projecting therefrom that extend toward~ first side wall 98'.
The pins 124 serve to support a number o second di~c~ 126 thereon which discs are o~ ring-~hape and are hel~ ~n ~paced ,, rélationship wi~h one another in the same manne~ as desc~bed, , = 18 -. . .
, . . . .
... . . .. , __.. _. ,. .,_ .. . ...
: ': in de~ail wi~h t~e pump illu6trated in FIG. 3. ~he inner . :
peripheries 12a of the second diocs 126 define a secoDd ,~. . transverse passa~e 130 that i8 in communication with ring- ' . shaped spaces 132 formed between the second di6cs 126,. ~ ~
The second pump E operates in the same'manner~as the pump ' ;~:"
111ustrated in FIG. 3,'but requires less~power eo operate '.'..
as the first and ~edond plates 98' and 114' are ree to ~ r~tate with the rotating body of fluid in the confined space :,, ~.,': 78'. Thus, as the body of fluid rotates in the confined ' :j space 78' there is a minimum in the differentlal in the rate ' o rotation o~ the body o fluid and the~side plates 98' ..
:, :,, ! ' 'and 114'~ , ' . The pump F ~hown in F~G. 14 ~ o the same internal ',v ' , , structure as pump D illustrated in FIG. 11, and differs from , pump D in that itting 86 i~ eliminated, with first conduit 92 being disposed normal to the pump hou8ing and in d~rect , .
':communication with first opening 84~
, .: , .. : :., ~ ,The pump G shown in F~G. 15 ~ 6 o~ the same ,, ~,,,,~' . ' general structure as the pump D, and differs from the'latter , ~'20 ' ; by:having the second plate 114 omitted, and the disc 112~ of , such diamete'r that the peripheral portion thereof is ~, i, :, ~ ;,rotatably di~posed in 8econd rece~s 82~. Elements in pump G ' , ,,:; .common to pump D are identi~ied on the dra~ing8 by the same , numerals previously used but with double primes being added ., , "'~, thereto. Pump,G operates in the same manner a8 pump D ' ,,. :
illustrated in FIG'.' 12. Pumps.D and a a,re particularly ;.
adapted or pump~ng mult 4has- flolds~ in whioh the inner~
phase-.has:a high-content of 601ids ana may contain piece~,of '', ~ .
. ' 19 ' . . .
, .
-, . ' , .
, ,. ' .
paper, rags and other ibrous or stringy materials. Such materials ha~e no adveree ~ffect on the operatio~ o the~e pumps.
, Th~ pump~ D and G axe useful in transferring objects, either animate or inanimate from a first location -~ to a second location. The objects are mixed with fluid at a first location tO provide a mult$phase 1uid in which the ~-outer phase is ~luid and the i~ner pha~e the objects. The ob~ects may have such diverse physical characteri~tics as those commo~ to vegetables, fruits and berrie~, as well as to fi~h, shrimp, crustacean6 and the li~e, as well as to . .
granular materials such as powdered coal. Th~ multiphase fluid may also be either a liquid or air slurry, raw or partially treated ~ewage and the like.
The pump J illustrated in FIGS. 16 and 17 includes ";,.";
a housing 200 ~hat i9 ~e1ned by two laterally spacea side pieces 202 and an arcuate end piece 204 that extends there-between ~o deine a circular conined space 206. The end pieae 206 has extensions projecting thererom that cooperate with extensions o the side pieces 204 to de~ine a fluid disaharge 208 that is preerably o diverging coniguration.
The side piece 202 have transversely alignèd 1uid inlet openings 210 therein as may best be seen in FIG. 17. ;;
Fluid may 1OW rom a source ~not shown) through a conduit 212, which conduit develops ad~acent the pump J
into a pair o conduit extension~ 214 o~ le~ser transver~e cros~-section that are in communication with the inlet openings 210. The conduit extens1ons 214 have laterally spaced bosses 216 pro~ec~ing outwardly therefrom, with the .
-` 1 163~62 ~
bos~as bo~ng axially al~gned and oentexe~ relatlve to the inlet ope~ing 210. Each boss supports a bear~ng 218 and a low pres~ure seal 220, both o~ which may be o~ conventlonal present day de~ign.
The bearings 220 rotatably 8upport a shat'222 that i5 in sealing engagement with the seals 220, a~d the shaft ex~endi~g,~ran~versely acros~ confined space 206.
Shaft 222 by a coupling 224 is connected to the drive shaft 226 of a prime mover 228, preferably an elec~ric motor.
~ Shaft 222 at the center of confined space 206 has ' a circular plate 230 of substantial strength secured thereto.
A number o~'elongate, circumferentially fipaced rigid members .
232 extend outwardly equal distances rom oppo~ite sides'of the plate, which member~ may be bolts or the like. The '' members 232 in cooperation with spacer~ 234 mou~ted thereon serve'to support two sets of ring-shaped discs 236 on opposite sides of the plate 230. The ring-shaped discs 236 have axially aligned centered opening 238 therein. ~he ~ , -; ',ring-shaped disc~ 236 ln each set are separated by ~pa¢es 240. ' ' ' , '"'' When prime mover 228 i~ operating, the plate 230' and the two sets o ring-shaped discs 236 are rotated concurrently. Fluid is drawn into the conined space 206 ' through inlet openings 210 at the same rate and exerts ' ~'oppositely directed orces on the plate 230, and as a result the sha~t 222 has no appreciable longitudinal thrust exerted thereon. The ~luid ater en~ering conined'space 206, is di6charged thererom through 1uid d~saharge ios in the ~ame manner a~ in pump A-l ~hown in ~IG. 3. ;,~' The bladeless pumps have been described previously' in detal as to structure and the method,o~u~ing the oame and need no~ be repeated. , , , ' , ' , . . . ....... . . .. .... . . .
.. . .... .. .. .. .. . ..
Claims
1. A pump for use in transferring either a single phase or multiphase fluid from a first location to a second location which includes:
a) a housing assembly that includes vertically disposed, laterally spaced first and second side walls and a continuous end wall that extends transversely therebetween to cooperate therewith to define a circular confined space, a centrally disposed first opening in said first side wall in communication with said first location, a discharge opening in said end wall that is at a higher elevation than said first opening and is in communication with said second location, and a second opening in said second side wall that is oppositely disposed from said first opening, said housing assembly formed from a rigid material resistant to action by said fluid;
b) a rotatable drive shaft that has first and second ends;
c) bearing and seal means outside said housing assembly supported in a fixed relationship from said second side wall and coaxially aligned with said second opening therein, said bearing and seal means rotatably supporting said first end of said drive shaft, with said second end of said drive shaft disposed within said confined space, d) a substantially smooth circular disc in said confined space secured to said second end of said drive shaft and positioned between said first and second side walls with drive shaft when rotated at a rate causing a circular body of said fluid in said confined space to rotate due to a rotary force exerted on said circular body of said fluid as a boundary layer of said fluid on the exterior surface of said circular disc is rotated relative to said circular body of fluid to be sheared therefrom, and said fluid entering said confined space through said first opening having increasing rotary velocity imparted thereto to sequentially move outwardly in a spiral path due to the centrifugal force imposed thereon and be sequentially ejected from said discharge opening to flow to said second location, said first side wall and end wall at their junction defining a circumferentially extending recess that is in communication with said confined space, and e) a first ring-shaped side plate rotatably supported in said confined space adjacent said first side wall, and said first side plate having the outer peripheral edge portion thereof rotatably supported in said recess, said first side plate including a centered opening axially aligned with said first opening in said first side wall, with said first side plate free to rotate with said circular body of fluid to minimize the frictional drag on said circular body of fluid as said circular body of fluid rotates relative to said housing.
a) a housing assembly that includes vertically disposed, laterally spaced first and second side walls and a continuous end wall that extends transversely therebetween to cooperate therewith to define a circular confined space, a centrally disposed first opening in said first side wall in communication with said first location, a discharge opening in said end wall that is at a higher elevation than said first opening and is in communication with said second location, and a second opening in said second side wall that is oppositely disposed from said first opening, said housing assembly formed from a rigid material resistant to action by said fluid;
b) a rotatable drive shaft that has first and second ends;
c) bearing and seal means outside said housing assembly supported in a fixed relationship from said second side wall and coaxially aligned with said second opening therein, said bearing and seal means rotatably supporting said first end of said drive shaft, with said second end of said drive shaft disposed within said confined space, d) a substantially smooth circular disc in said confined space secured to said second end of said drive shaft and positioned between said first and second side walls with drive shaft when rotated at a rate causing a circular body of said fluid in said confined space to rotate due to a rotary force exerted on said circular body of said fluid as a boundary layer of said fluid on the exterior surface of said circular disc is rotated relative to said circular body of fluid to be sheared therefrom, and said fluid entering said confined space through said first opening having increasing rotary velocity imparted thereto to sequentially move outwardly in a spiral path due to the centrifugal force imposed thereon and be sequentially ejected from said discharge opening to flow to said second location, said first side wall and end wall at their junction defining a circumferentially extending recess that is in communication with said confined space, and e) a first ring-shaped side plate rotatably supported in said confined space adjacent said first side wall, and said first side plate having the outer peripheral edge portion thereof rotatably supported in said recess, said first side plate including a centered opening axially aligned with said first opening in said first side wall, with said first side plate free to rotate with said circular body of fluid to minimize the frictional drag on said circular body of fluid as said circular body of fluid rotates relative to said housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85865477A | 1977-12-08 | 1977-12-08 | |
| US858,654 | 1977-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1163862A true CA1163862A (en) | 1984-03-20 |
Family
ID=25328827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000317644A Expired CA1163862A (en) | 1977-12-08 | 1978-12-08 | Bladeless pump and method of using same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0002592A1 (en) |
| CA (1) | CA1163862A (en) |
| MX (1) | MX150165A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE8291T1 (en) * | 1978-08-30 | 1984-07-15 | Max Ira Gurth | METHOD AND DEVICE FOR PUMPING LARGE SOLID ARTICLES. |
| US4335994A (en) * | 1978-08-30 | 1982-06-22 | Gurth Max Ira | Method and apparatus for pumping large solid articles |
| US4773819A (en) * | 1978-08-30 | 1988-09-27 | Gurth Max Ira | Rotary disc slurry pump |
| US4402647A (en) * | 1979-12-06 | 1983-09-06 | Effenberger Udo E | Viscosity impeller |
| EP0101770A1 (en) * | 1982-08-31 | 1984-03-07 | Clarence R. Possell | Method for pumping slurry and apparatus for use therewith |
| EP0102423A1 (en) * | 1982-08-31 | 1984-03-14 | Clarence R. Possell | Concrete pump and method of using same |
| FR2846033B1 (en) * | 2002-10-21 | 2005-01-28 | Onera (Off Nat Aerospatiale) | ROTATING MACHINE OF THE TESLA TYPE OR PUMP |
| US7192244B2 (en) | 2004-02-23 | 2007-03-20 | Grande Iii Salvatore F | Bladeless conical radial turbine and method |
| DK201300498A1 (en) * | 2013-09-04 | 2015-03-23 | Nicholas Møller | Propulsion unit and uses of the propulsion unit |
| WO2020041842A1 (en) * | 2018-08-31 | 2020-03-05 | Vujinovic Zoran | Tesla's super compressor |
| USD918142S1 (en) | 2018-12-14 | 2021-05-04 | Smith Flow Dynamics, LLC | Bladeless turbine impeller |
| US11105343B2 (en) | 2018-12-14 | 2021-08-31 | Smith Flow Dynamics, LLC | Fluid-foil impeller and method of use |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1061142A (en) * | 1909-10-21 | 1913-05-06 | Nikola Tesla | Fluid propulsion |
| US2087834A (en) * | 1932-05-23 | 1937-07-20 | Chester W Brown | Fluid impeller and turbine |
| FR866706A (en) * | 1940-04-30 | 1941-08-30 | Improvement in turbo-machines | |
| US2632598A (en) * | 1950-04-05 | 1953-03-24 | Theodore Backer | Centrifugal blower |
| CH393092A (en) * | 1960-10-15 | 1965-05-31 | W & R Schenk & Co Ag | Centrifugal pump |
| US3647324A (en) * | 1969-12-18 | 1972-03-07 | Edson Howard Rafferty | Electrically driven pumps capable of use as heart pumps |
| DE2110224A1 (en) * | 1971-03-03 | 1972-10-26 | Fa. Philipp Hilge, 6501 Boenheim | Centrifugal pump for liquid containing gas |
| FR2137151B1 (en) * | 1971-05-14 | 1973-05-11 | Girodin Marius | |
| US3864055A (en) * | 1971-12-06 | 1975-02-04 | Harold D Kletschka | Pumps capable of use as heart pumps and blood pumps |
-
1978
- 1978-12-07 MX MX17590178A patent/MX150165A/en unknown
- 1978-12-08 EP EP78300777A patent/EP0002592A1/en not_active Withdrawn
- 1978-12-08 CA CA000317644A patent/CA1163862A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| MX150165A (en) | 1984-03-29 |
| EP0002592A1 (en) | 1979-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4403911A (en) | Bladeless pump and method of using same | |
| US11213793B2 (en) | Cavitation pump | |
| CA1163862A (en) | Bladeless pump and method of using same | |
| US3171357A (en) | Pump | |
| US2726606A (en) | Pumping system | |
| US7089886B2 (en) | Apparatus and method for heating fluids | |
| KR930008352B1 (en) | Pump | |
| GB2125118A (en) | Hydraulic seal | |
| CN101918121B (en) | Mixer assembly and method for flow control in a mixer assembly | |
| US4176064A (en) | Mixture concentrator | |
| US3559964A (en) | Device for mechanical gasification of liquids | |
| KR100662049B1 (en) | The pump which has a waste pulverization function | |
| KR101694847B1 (en) | spurt pump | |
| KR101607428B1 (en) | Pump with disc impellor | |
| US5344163A (en) | Dynamic shaft seal for pumping fibrous slurries | |
| JP2015140701A (en) | self-priming pump | |
| CA2884578C (en) | Blender apparatus and method | |
| US3269325A (en) | Pump | |
| US4815929A (en) | Eddy pump | |
| FI85751B (en) | FOERFARANDE OCH ANORDNING FOER PUMPNING AV TJOCKT MEDIUM. | |
| KR100732196B1 (en) | Square twister rotor | |
| CN101709720A (en) | Novel high-efficient energy-saving pump | |
| US2431221A (en) | Centrifugal pump | |
| EP0111653A2 (en) | A liquid ring pump | |
| KR101933342B1 (en) | Impeller for water pump with curved wing structure and water pump applied with the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |