EP0002592A1 - Pompe centrifuge sans aubages et son fonctionnement - Google Patents

Pompe centrifuge sans aubages et son fonctionnement Download PDF

Info

Publication number
EP0002592A1
EP0002592A1 EP78300777A EP78300777A EP0002592A1 EP 0002592 A1 EP0002592 A1 EP 0002592A1 EP 78300777 A EP78300777 A EP 78300777A EP 78300777 A EP78300777 A EP 78300777A EP 0002592 A1 EP0002592 A1 EP 0002592A1
Authority
EP
European Patent Office
Prior art keywords
fluid
confined space
circular
pump
opening
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.)
Withdrawn
Application number
EP78300777A
Other languages
German (de)
English (en)
Inventor
Clarence R. Possell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0002592A1 publication Critical patent/EP0002592A1/fr
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to a pump and method of using same.
  • the present invention preferably provides a bladeless pump and method of using the same to transfer either a single phase fluid or multiphase fluid from a first location to a second location without damaging the material that comprises the innerphase, even when the inner phase is of an extremely frangible nature such as the red blood cells in blood.
  • the present invention may provide a bladeless pump that can 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 form the inner phase of a fluid in which the outer phase is a liquid.
  • the present invention may 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.
  • the present invention may provide 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 pulverised coal in coal slurry.
  • the present invention may provide a bladeless pump capable of efficiently handling hot geothermal multiphase fluids that contain water, dissolved solids in the water, steam and gas vapors.
  • Pump housing assembly B includes first and second, laterally spaced side pieces 10 and 12 that are illustrated in the drawings as having lower horizontal edges 10a 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.
  • the first side piece 10 has a first opening 16 therein that is centered relative to the circular end piece 14.
  • a fitting 18 is in fixed sealing relationship with the exterior surface of the first side piece 10.
  • the fitting 18 has an off centered first passage 20 defined in the interior thereof that is in communication with the first opening 10, as well as the interior of a first upwardly and outwardly extending conduit 22.
  • the passage 20 is of such curved configuration that initial rotary motion is imparted to the fluid flowing therethrough prior to the fluid entering the confined space C.
  • the first conduit 22 extends to a first location (not shown) at which the fluid to be pumped is stored Or is available to be pumped.
  • a second opening 24 is formed in the second end piece 12 and is preferably coaxially aligned with the first opening 16.
  • the second opening 24 has a bearing 28 operatively associated therewith, and the bearing supporting a shaft 30 that extends into the confined space C and is normally disposed to the second end piece 12.
  • a seal 28 is mounted on the exterior portion of the end piece 12 and is in rotatable sealing engagement with the shaft 30.
  • the shaft 30 has an interiorly position shouldered end portion 32.
  • the end portion 32 of the shaft 30 most remote from the second end piece 12 is illustrated as being driven by a prime mover 34, wuch as an electric motor or the like.
  • a flat disc 36 is disposed within the confines of the confined space C, with the disc having a centered opening therein through which the shouldered end portion 32 of the shaft 30 extends.
  • An apertured plato 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.
  • FIG.. 4 it will be seen that this circular mass of fluid rotates in a counterclockwise 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 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.
  • 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 counterclockwise direction.
  • the outwardly moving fluid is subjected concurrently to two forces, the first being a radially directed force, and the second a centrifugal force, with the centrifugal force increasing as the fluid moves outwardly from the second recess 56.
  • first being a radially directed force
  • second a centrifugal force
  • fluid after entering the second recess 56 and discharging therefrom 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.
  • 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.
  • this resisting tendenoy is minimized by the side surfaces that define the confined space C being free to rotate with the circular body of fluid. Under such circumstances there is a minimum differential between the rate of rotation of the circular body of fluid and the side surfaces that partially define this body of fluid.
  • the first form A-1 of the invention above-described is capable of being used to pump either single phase or multiphase fluid from a first location to a second location.
  • the spaces 52 must be of sufficient width as to allow the objects of largest cross section to move therethrough with the gaseous or liquid phase with which they are associated.
  • the boundary layers of a fluid are not penetrated by solid objects entrained therewith, and as a result when a multiphase fluid is being pumped that contains solid objects, these objects will not contact the inner surface of the housing assembly B or the surfaces of the disc 36 or ring-shaped discs 46.
  • the solid objects have minimum abrasive action on the surfaces of the pump during the passage therethrough.
  • the pump A is also free of cavitation, for bubbles entrained with the fluid are not physically contacted by any lifting surfaces and pass between the discs They enter the pump as bubbles and discharge from the pump as bubbles, although smaller as a result of the increased pressure at the discharge.
  • the second form of the invention A-2 shown in FIG. 5 is similar to the first form, other than that the disc 36 and the ring-shaped discs 46 have outer peripheral portions that taper towards one another and are identified on the drawing by the notation 36a and 46a. Due to the above-mentioned construction in the second form A-2 of the pump, the fluid will tend to remain in the spaces 52 a greater length of time, and will be subjected to rotary shear for a greater length of time, to be delivered to the discharge outlet 58 at a higher pressure than would normally be achieved when the first form A-l of the pump is' used. In FIG. 5 it will be seen that the second form A-2 of pump also has the outer peripheral portions of the first and second side pieces 10a and 12a tapering inwardly towards one another.
  • the third form A-3 of the pump is shown in FIG. 6 differs from the first form A-l only in that the ring-shaped discs 46 are not of uniform wall thickness, but taper outwardly from the inner periphery 54 thereof and are of maximum thickness at the outer periphery of the discs.
  • the ring-shaped discs 46 of the above-described structure result in ring-shaped spaces 52 being defined therebetween when spacers 50 are mounted on the pins 42, which ring-shaped spaces are of maximum width adjacent inner periphery 54 and are of minimum width adjacent the outer periphery of the ring-shaped discs 46.
  • FIG. 7 a modification A'-1 of the first form of the invention is shown, with the modified form A'-1 varying from the first form only in that the inner peripheries 54 of the ring-shaped discs 46 vary in diameter, and this. variance in diameter varying the area of the surfaces of the ring-shaped discs 46 that may impose a rotary motion to the circular body of the fluid in the confined space C, as the ring-shaped discs 46 and disc 36 rotate relative thereto.
  • the fourth form A-4 of the invention as shown in FIG. 8 differs from the first form A-l in that the flat. disc 36 and ring-shaped discs 46 are removed from the first form and replaced by a single disc 64 that has a centered hub 66 that has an opening therein that engages the shouldered end 32 of the shaft 30 and is held thereon by a nut 40.
  • the hub 66 is illustrated in FIG. 8 as having the major portion thereof curve radially in a stream line configuration.
  • the disc 64 as may be seen in FIG. 8 extends towards the interior surface of the second side piece 12.
  • the fourth form A-4 of the pump is particularly adapted for use in transferring multiphase fluid from a first to a second location, such as when the first phase is a liquid, and the second phase a number of objects, such as potatoes, cherry tomatoes, fruits, vvegetables, and marine animals including fish, shrimp, and the like.
  • the prime mover 32 is actuated to cause rotation of-the disc 64, and this disc when rotated in a counterclockwise direction as viewed in FIG. 9 imparting circular motion to the circular body of fluid within the confined space C.
  • the body of fluid is rotated due to the boundary layer adhereing to the disc 64 and hub 66 being sheared therefrom by rotation of the disc, and this shearing force imparting rotary motion to the circular body of multiphase fluid in the confined space .
  • C As the circular body of fluid in the confined space C rotates clockwise, the solid objects in the first liquid phase are subjected to increasing centrifugal force as they move outwardly relative to the hub in a generally spiral path to be ejected with the liquid first phase sequentially through the discharge outlet 58 to flow through the conduit 62 to the second location.
  • the rate of rotation of the disc 64 and hub 66- must be sufficient as to generate a rotary shearing force on the circular body of the fluid in the confined space C as to cause the same to rotate, and overcome the shearing of the boundary layers on the interior surfaces of the first and second side pieces 10 and 12 and end piece 14 that tead to resist such rotation.
  • FIG.10 A modification A'-4 of the fourth form of the invention is shown in FIG.10, which includes a number of circumferentially spaced pins 42 that project from the . disc 64 towards the first end piece 10, with the pins 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 spacer resulting in each pair of ring-shaped discs having a ring-shaped space 70 defined therebetween through which fluid may discharge outwardly towards the end piece 14 as the disc 64 and ring-shaped discs 46 rotate in unison.
  • the pairs of 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 of a soft resilient material such as rubber or the like.
  • spacers 72 mounted on the pins 42, and these spacers being of a soft resilient material such as rubber or the like.
  • This rotary motion occurs due to the shearing of the boundary layer on the disc 64, and on the ring-shaped discs 46, from the balance of the circular body of fluid in the confined space C, and this shearing imparting rotary motion to the circular body of fluid to cause the same to be ejected from the discharge opening 58 as previously described.
  • the spacing between the disc 64 and the pairs of ring-shaped discs 46 must be sufficiently great that the largest of the solids entrained with the fluid are able to pass radially therethrough as thcy describe substantially spiral patha prior to being ejected from the discharge opening 58.
  • the spaces 70 between the pairs of spaced ring-shaped discs 46' provide additional surfaces on the ring-shaped discs 46 that have boundary layers thereon that are sheared from the baiance of the circular body of fluid, and increase the circular drag on the circular body of fluid as the disc 64 and pairs of ring-shaped discs 46 rotate relative thereto.
  • the spacers 72 serve a dual function, not only of maintaining the pairs of ring-shaped discs 46 in laterally spaced relationship with one another, but preventing damage to frangible objects entrained with a liquid or gas as the object and liquid are caused to flow through the modified form A'-4 of the fourth form of the invention to discharge to the second location through the second conduit 62.
  • the pump D illustrated in FIGS. 11 and 3.2 is a first modification of the bladeless pump illustrated in FIG. 8 and has a housing 69 that includes first and second laterally spaced side walls 70 and 72 that have extensions 70a and 72a that partially define the diverging outlet structuro 74 as' shown in FIG. 14.
  • An end wall 76 is disposed between the first and second side walls and cooperates therewith to define a circular confined space 78 of substantial width.
  • the end wall 76 has spaced extensions 76a that cooperate with the extensions 70a and 72a to define the diverging outlet structure 74.
  • the first and second side walls 70 and 72 on the adjacent faces thereof have circular ribs 70b and 72b that project towards one anotherand are in abutting sealing contact with oppositely disposed side surfaces of end piece 76.
  • the end piece 76 as may be seen in FIG. 12 is of greater thickness than the depth of the ribs 70b and 72b and cooperates with the ribs to define first and second circular recesses 80 and 82 shown in FIG. 12.
  • First side wall 70 has a centered first opening 84 therein that serves as a fluid inlet.
  • a fluid conducting fitting 86 is secured to the exterior surface of first side wall 70 as illustrated in FIGS. 11 and 12.
  • the fitting defines a generally circular cavity 88 within the interior thereof that is of substantially greater diameter than the first centered opening 84 in first side wall 70, which first opening serves as a fluid inlet.
  • Cavity 88 and first opening 84 are in communication but off centered relative to one another. Cavity 88 is also in communication with a longitudinal .passage 90 in a first conduit 92 that extends to a first location (not shown) where the fluid to be pumped is situated.
  • the passage 90 is tangentially disposed relative to cavity 88.
  • the first side wall 70 has a ring-shaped boss 94 projecting inwardly from the interior-surface thereof as shown in FIG. 12, which surrounds first opening 84.
  • Boss 94 supports a bearing 96 that in turn rotatably supports a first circular plate 98 that has the circumferential edge portion slidably and rotatably disposed in first circular recess 82.
  • Ribs 70b, 72b and end piece 76 have spaced transverse bores (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 therein that is preferably axially aligned with first opening. 84.
  • a power driven shaft 104 extends into confined space 78 through second opening 102, and is rotatably supported by a bearing and seal 106 that is preferably secured to the exterior surface of second side wall 72.
  • the shaft 104 has an externally threaded shouldered end portion 108 situated within confined space 78 that extends through an opening (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 serves to removably secure disc 112 thereto.
  • the disc 112 preferalby includes a reinforcing structure 114 in engagement with shaft 104.
  • A-second circular plate 114 is rotatably supported on shaft 104 and is disposed between disc 112 and the interior surface of the second side wall 72. Second plate 114 is of such diameter that the peripheral edge portion thereof. is rotatably disposed in the second circular recess 82.
  • the pump E illustrated in FIG. 13 employs the assembly of elements common to the pump D, but with the disc 112 being replaced by a rotor assembly 120.
  • Elements of the pump E common to the pump D illustrated in FIG. 12 are identified by the numerals previously used but with primes . being added thereto.
  • the disc 112 of pump D is replaced by a flat first disc 122 in pump E that forms a part of rotor assembly 120.
  • Disc 122 has a number of circumferentially spaced pins 124 projecting therefrom that extend towards first side wall 98'.
  • the pins 124 serve to support a number of second discs 126 thereon which discs are of ring-shape and are held in spaced relationship with one another in the same manner as described. in detail with the pump illustrated in FIG. 3.
  • the inner peripheries 128 of the second discs 126 define a second transverse passage 130 that is in communication with ring-shaped spaces 132 formed between the second discs 126.
  • the second pump E operates in the same manner as the pump illustrated in FIG.
  • the pump F shown in FIG. 14 is of the same internal structure as pump D illustrated in FIG. 11, and differs from pump D in that fitting 86 is eliminated, with first conduit 92 being disposed normal to the pump housing and in direct communication with first opening 84.
  • the pump G shown in FIG. 15 is of the same general structure as the pump D, and differs from the'latter by having the second plate 114 omitted, and the disc 112" of such diameter that the peripheral portion thereof is rotatably disposed in second recess 82".
  • Elements in pump G common to pump D are identified on the drawings by the same numerals previously used but with double primes being added thereto.
  • Pump G operates in the same manner as pump D illustrated in FIG. 12.
  • Pumps D and G are particularly adapted for pumping multiphase fluids in which the inner phase has a high content of solids and may contain pieces of paper, rags and other fibrous or stringy materials. Such materials have no adverse effect on the operation of these. pumps.
  • the pumps D and G are 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 multiphase fluid in which the outer phase is fluid and the inner phase the objects.
  • the objects may have such diverse physical characteristics as those common to vegetables, fruits and berries, as well as to fish, shrimp, crustaceans and the like, as well as to granular materials such as powdered coal.
  • the multiphase fluid may also be either a liquid or air slurry, raw or partially treated sewage and the like.
  • the pump J illustrated in FIGS. 16 and 17 includes a housing 200 that is defined by two laterally spaced side pieces 202 and an arcuate end piece.204 that extends therebetween to define a circular confined space 206.
  • the end piece 206 has extensions projecting therefrom that cooperate with extensions of the side pieces 204 to define a fluid discharge 208 that is preferably of diverging configuration.
  • the side piece 202 have transversely aligned fluid inlet openings 210 therein as may best be seen in FIG. 17.
  • Fluid may flow from a source (not shown) through a conduit 212,'which conduit develops adjacent the pump J into a pair of conduit extensions 214 of lesser transverse cross-section that are in communication with the inlet openings 210.
  • the conduit extensions 214 have laterally spaced bosses 216 projecting outwardly therefrom, with the bosses being axially aligned and centered relative to the inlet opening 210.
  • Each boss supports a bearing 218 and a low pressure seal 220, both of which may be of conventional present day design.
  • the bearings 220 rotatably support a shaft 222 that is in sealing engagement with the seals 220, and the shaft extending transversely across confined space 206.
  • Shaft 222 by a coupling 224 is connected to the drive shaft 226 of a prime mover.228, preferably an electric motor.
  • Shaft 222 at the center of confined space 206 has a circular plate 230 of substantial strength secured thereto.
  • a number of elongate, circumferentially spaced rigid members 232 extend outwardly equal distances from opposite sides of the plate, which members may be bolts or the like.
  • the members 232 in cooperation with spacers 234 mounted 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.
  • the .ring-shaped discs 236 in each set are separated by spaces, 240.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP78300777A 1977-12-08 1978-12-08 Pompe centrifuge sans aubages et son fonctionnement Withdrawn EP0002592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85865477A 1977-12-08 1977-12-08
US858654 1977-12-08

Publications (1)

Publication Number Publication Date
EP0002592A1 true EP0002592A1 (fr) 1979-06-27

Family

ID=25328827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300777A Withdrawn EP0002592A1 (fr) 1977-12-08 1978-12-08 Pompe centrifuge sans aubages et son fonctionnement

Country Status (3)

Country Link
EP (1) EP0002592A1 (fr)
CA (1) CA1163862A (fr)
MX (1) MX150165A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles
US4402647A (en) * 1979-12-06 1983-09-06 Effenberger Udo E Viscosity impeller
EP0101770A1 (fr) * 1982-08-31 1984-03-07 Clarence R. Possell Dispositif et procédé pour le pompage des eaux brutes
EP0102423A1 (fr) * 1982-08-31 1984-03-14 Clarence R. Possell Pompe à béton et procédé pour son utilisation
EP0016825B1 (fr) * 1978-08-30 1984-07-04 GURTH, Max Ira Procede et appareillage pour le pompage d'articles solides de grandes dimensions
US4773819A (en) * 1978-08-30 1988-09-27 Gurth Max Ira Rotary disc slurry pump
FR2846033A1 (fr) * 2002-10-21 2004-04-23 Onera (Off Nat Aerospatiale) Machine tournante du type ou pompe de tesla
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 (fr) * 2018-08-31 2020-03-05 Vujinovic Zoran Super compresseur de tesla
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT60332B (de) * 1909-10-21 1913-07-25 Nikola Tesla Kraftmaschine oder Pumpe mit mehreren, in einem geschlossenen Gehäuse auf einer Zentralwelle in Abständen voneinander angeordneten, parallelen, kreisenden Scheiben.
US2087834A (en) * 1932-05-23 1937-07-20 Chester W Brown Fluid impeller and turbine
FR866706A (fr) * 1940-04-30 1941-08-30 Perfectionnement aux turbo-machines
US2632598A (en) * 1950-04-05 1953-03-24 Theodore Backer Centrifugal blower
CH393092A (de) * 1960-10-15 1965-05-31 W & R Schenk & Co Ag Kreiselpumpe
US3647324A (en) * 1969-12-18 1972-03-07 Edson Howard Rafferty Electrically driven pumps capable of use as heart pumps
DE2110224A1 (de) * 1971-03-03 1972-10-26 Fa. Philipp Hilge, 6501 Boenheim Kreiselpumpe für gashaltige Flüssigkeit
FR2137151A1 (fr) * 1971-05-14 1972-12-29 Girodin Marius
US3864055A (en) * 1971-12-06 1975-02-04 Harold D Kletschka Pumps capable of use as heart pumps and blood pumps

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT60332B (de) * 1909-10-21 1913-07-25 Nikola Tesla Kraftmaschine oder Pumpe mit mehreren, in einem geschlossenen Gehäuse auf einer Zentralwelle in Abständen voneinander angeordneten, parallelen, kreisenden Scheiben.
US2087834A (en) * 1932-05-23 1937-07-20 Chester W Brown Fluid impeller and turbine
FR866706A (fr) * 1940-04-30 1941-08-30 Perfectionnement aux turbo-machines
US2632598A (en) * 1950-04-05 1953-03-24 Theodore Backer Centrifugal blower
CH393092A (de) * 1960-10-15 1965-05-31 W & R Schenk & Co Ag Kreiselpumpe
US3647324A (en) * 1969-12-18 1972-03-07 Edson Howard Rafferty Electrically driven pumps capable of use as heart pumps
DE2110224A1 (de) * 1971-03-03 1972-10-26 Fa. Philipp Hilge, 6501 Boenheim Kreiselpumpe für gashaltige Flüssigkeit
FR2137151A1 (fr) * 1971-05-14 1972-12-29 Girodin Marius
US3864055A (en) * 1971-12-06 1975-02-04 Harold D Kletschka Pumps capable of use as heart pumps and blood pumps

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
POWER, December1975 W.O. KEEFE "New efforts aim at pratical application of multiple-disk-pump concept in industry", pages 51 to 53. *
VDI-ZEITUNG vol. 113, no. 4, M{rz 1971, page 225, lines 4 to 25, fig. 19. *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles
EP0016825B1 (fr) * 1978-08-30 1984-07-04 GURTH, Max Ira Procede et appareillage pour le pompage d'articles solides de grandes dimensions
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 (fr) * 1982-08-31 1984-03-07 Clarence R. Possell Dispositif et procédé pour le pompage des eaux brutes
EP0102423A1 (fr) * 1982-08-31 1984-03-14 Clarence R. Possell Pompe à béton et procédé pour son utilisation
FR2846033A1 (fr) * 2002-10-21 2004-04-23 Onera (Off Nat Aerospatiale) Machine tournante du type ou pompe de tesla
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 (fr) * 2018-08-31 2020-03-05 Vujinovic Zoran Super compresseur de tesla
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
USD971149S1 (en) 2018-12-14 2022-11-29 Smith Flow Dynamics, LLC Bladeless turbine impeller

Also Published As

Publication number Publication date
MX150165A (es) 1984-03-29
CA1163862A (fr) 1984-03-20

Similar Documents

Publication Publication Date Title
US4403911A (en) Bladeless pump and method of using same
EP0002592A1 (fr) Pompe centrifuge sans aubages et son fonctionnement
US4335994A (en) Method and apparatus for pumping large solid articles
US11213793B2 (en) Cavitation pump
US4904159A (en) Pump impeller
US3650481A (en) Grinder pump
US4326863A (en) Centrifugal degasser
AU642614B2 (en) Rotary disc pump
US8784038B2 (en) Cutter assembly and high volume submersible shredder pump
US2956503A (en) Rotary pumps, particularly for delivery of sewage, thick slurries and the like liquids
US4347032A (en) Method for pumping slurry and apparatus for use therewith
US4548545A (en) Centrifugal pump with deaeration chamber
US4347033A (en) Concrete pump and method of using same
EP0647467B1 (fr) Mélangeur rotatif et tête de dispersion intégrés en une pièce
JP7411756B2 (ja) デュアルカッタアセンブリおよびデュアルカッタアセンブリを有する水中シュレッダポンプ
US9782734B2 (en) Integrated rotary mixer and disperser head
JP7193424B2 (ja) カッタアセンブリおよび高容量の水中シュレッダポンプ
US3478797A (en) Preparing sausage batter for cooking and cooling
US6202949B1 (en) Pulverizer assembly
EP0101770A1 (fr) Dispositif et procédé pour le pompage des eaux brutes
US3252690A (en) Liquid mixing device
RU191528U1 (ru) Гидродинамический ударно-вибрационный дисмембратор мокрого сверхтонкого помола
EP0102423A1 (fr) Pompe à béton et procédé pour son utilisation
EP0016825B1 (fr) Procede et appareillage pour le pompage d'articles solides de grandes dimensions
JP2000000481A (ja) セラミックス粒子の粉砕装置及び粉砕方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19810406