Рабочее колесо шламового насоса

Полезная модель относится к гидромашиностроению и может быть использована для определения параметров рабочего колеса и переднего бронедиска центробежного шламового насоса для увеличения срока их наработки и КПД. Технический результат предлагаемой полезной модели заключается в увеличении срока службы шламового насоса за счет уменьшения гидравлических потерь и износа проточной части насоса при перекачке пульпы. Рабочее колесо шламового насоса включает задний и передний диски и размещенные между дисками лопасти, тыльные поверхности которых имеют наклон 60°÷80° к поверхности заднего диска с образованием проточного канала переменного сечения с выходным отверстием со стороны заднего диска и входным отверстием со стороны переднего диска, при этом отношение толщины каждой лопасти к ширине выпуска проточного канала составляет 0,2÷0,7, а отношение ширины проточного канала выпуска к ширине канала на входе составляет 0,3÷0,45, отношение диаметра рабочего колеса к его ширине составляет 0,3÷0,8, профили внутренних поверхностей переднего и заднего дисков выполнены изогнутыми, при этом отношение радиуса изгиба внутренней поверхности переднего диска к радиусу изгиба внутренней поверхности заднего диска составляет 0,2÷0,5. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 170 449 U1 (51) МПК F04D 29/22 (2006.01) F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016139670, 11.10.2016 (24) Дата начала отсчета срока действия патента: 11.10.2016 (72) Автор(ы): Шапорев Михаил Юрьевич (RU) Дата регистрации: 25.04.2017 (56) Список документов, цитированных в отчете о поиске: CN 204851763 U, 09.12.2015. RU Приоритет(ы): (22) Дата подачи заявки: 11.10.2016 Адрес для переписки: 109456, Москва, Рязанский пр-кт, 75, корп. 4, 1-я башня, 7 этаж, КГ "Вайзэдвайс", ООО "ФПБ "Гардиум", пат. пов. Купцова Е.В., рег. N 1264 1 7 0 4 4 9 R U (57) Формула полезной модели Рабочее колесо шламового насоса, ...

Wear Reduction Device for Rotary Solids Handling Equipment

A pump for solids handling is provided having a suction liner in combination with an impeller. The suction liner has a suction liner spiral design. The impeller has forward curved impeller suction side pump out vanes. The suction liner spiral design and the forward curved impeller suction side pump out vanes are configured to handle solids substantially having a weight concentration (Cw)<about 40% and/or a solids size distribution <about 200 microns, and to exclude abrasive solids from an impeller/suction side liner gap by increasing the resistance to slurry flow from a high pressure area at the periphery of the impeller periphery, and expel the solids which do manage to enter the impeller/suction side liner gap by guiding the solids away from a suction eye of the impeller, so abrasive erosion is substantially prevented to significantly reduce wear and a tight clearance is substantially maintained at the impeller/suction side liner gap between the impeller and the suction liner, which prevents degradation of pump performance through excessive leakage.

Screw-Type Centrifugal Pump with Cutting Inserts

A screw-type centrifugal pump with scissoring back cutters and having a housing with an intake opening and an outlet opening, both in fluid communication with an internal chamber, and an impeller assembly positioned within the chamber, is disclosed. Generally speaking, the impeller assembly has a hub having a back shroud and being attached to a rotatable pump shaft, with an impeller attached to the hub. An insert cutter positioned on a surface of the hub shroud opposite the impeller includes a cutting edge configured for shearing operation, while a stationary back plate having a surface adjacent to and facing the hub shroud includes a cutting rib having a cutting edge configured for shearing operation. The insert cutter and cutting rib work jointly to create a cutting action as the hub rotates in the chamber.

Cutter assembly and high volume submersible shredder pump

A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs cutting lobes having a grooved surface which mate with corresponding grooves of a circular plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

CHOPPER PUMP WITH MIXING NOZZLES FOR A SEWAGE WET-WELL

Systems and methods for conditioning sewage having entrained solids which clog sewage pumps, are disclosed. Systems include a sewage pump, a chopper pump, and a mixing nozzle connected to the chopper pump. Specifically, the sewage pump is a non-clog centrifugal pump having an inlet for drawing fluid into the pump and an outlet for discharging the fluid into a pipe, while the chopper pump has an inlet for drawing fluid into the pump and an outlet for discharging the fluid into the wet-well. The chopper pump may be positioned either in or adjacent to the wet-well. The mixing nozzle fluidly coupled to the chopper pump discharge, is positioned in the wet-well. Methods include the steps of positioning a chopper pump within the wet-well, drawing in liquid sewage, including the entrained solids, reducing the size of entrained solids, and discharging the sewage and reduced size solids into the wet-well. 1. A system for conditioning sewage in a sewage wet-well , the system comprising:at least one sewage pump having an inlet for drawing fluid into the pump and an outlet for discharging the fluid, the sewage pump being positioned within the wet-well;a chopper pump having an inlet for drawing fluid into the pump and an outlet for discharging the fluid, the chopper pump being positioned either in or adjacent to the wet-well; anda mixing nozzle fluidly coupled to the chopper pump discharge, wherein the mixing nozzle is positioned in the wet-well.2. The system of claim 1 , wherein the chopper pump is a submersible pump positioned within the wet-well.3. The system of claim 1 , wherein the chopper pump is a recirculating pump positioned within the wet-well.4. The system of claim 3 , wherein the mixing nozzle is attached to the recirculating pump.5. The system of claim 1 , wherein the mixing nozzle is directly attached to the chopper pump.6. The system of claim 1 , wherein the sewage pump comprises an non-clog centrifugal pump.7. The system of claim 1 , further comprising a discharge ...

CENTRIFUGAL PUMP

The invention relates to a centrifugal pump for conveying a gaseous suspension, in particular a fiber pulp suspension, which has a pump impeller () with at least one opening () in the base plate and ribs () on the rear side, where a separator unit () is provided consisting of a separator housing () with a stationary disc () and a disc () that rotates together with the pump shaft (), where the separator unit () is arranged in the pump housing adjoining the pump impeller () on its rear side when viewing the pump impeller () in axial direction and where the separator housing () has a gas collecting chamber () with a gas discharge pipe (). It is characterized by the disc () that rotates together with the pump shaft () having a closed surface () without openings. As a result, pulp losses are reduced and the centrifugal pump achieves better stability when pumping a gaseous suspension, particularly a fiber pulp suspension. 1121516172522211712122531282221231819. A centrifugal pump for conveying a gaseous fiber pulp suspension , which has a pump impeller () with at least one opening () in a base plate and ribs () on the rear side of the base plate , where a separator unit () is provided including a separator housing () with a wall and a disc () that rotates together with a pump shaft () , where the separator unit () is arranged in a pump housing adjoining the pump impeller () on its rear side when viewing the pump impeller () in axial direction , where the separator housing () has a gas collecting chamber () with a gas discharge pipe () , and where the disc () rotates together with the pump shaft () and has a closed surface () without openings , wherein the improvement comprises that the wall is formed as a stationary disc () and has ribs ().28.-. (canceled)9. A centrifugal pump for conveying a gaseous fiber pulp suspension , comprising:a pump housing;{'b': '21', 'a rotatable shaft () in the pump housing and defining a rotation axis;'}{'b': '12', 'an impeller () in the pump ...

Slurry Pump

In a rotor in rotor configuration, a pump has inward projections on an outer rotor and outward projections on an inner rotor. The outer rotor is driven and the projections mesh to create variable volume chambers. The outer rotor may be driven in both directions. In each direction, the driving part (first inward projection) of the outer rotor contacts a sealing surface on one side of an outward projection of the inner rotor, while a gap is left between a sealing surface of the other side of the outward projection and a second inward projection. The gap may have uniform width along its length in the radial direction, while in a direction parallel to the rotor axis it may be discontinuous or have variable size to create flow paths for gases. 1. A fluid transfer device comprising:a housing having an inward facing surface;an outer rotor secured for rotation about an outer rotor axis that is fixed in relation to the housing, the outer rotor having inward projections, the outer rotor being arranged to be driven in operation by a drive shaft;an inner rotor secured for rotation about an inner rotor axis that is fixed in relation to the housing, the inner rotor axis being inside the outer rotor, the inner rotor having outward projections, the outward projections in operation meshing with the inward projections to define variable volume chambers as the inner rotor and outer rotor rotate; fluid transfer passages in a portion of the housing to permit flow of fluid into and out of the variable volume chambers; andeach outward projection having a first sealing surface and a second sealing surface circumferentially opposed to each other for respective engagement with corresponding sealing surfaces of adjacent inward projections such that in an operational configuration in which the outer rotor is driven in a first direction, the first sealing surface seals against a first corresponding inward projection with a first gap between at least part of the second sealing surface and a ...

Gas turbine and method for protecting a gas turbine in case of a shaft break

A gas turbine includes a main shaft connecting a turbine to a compressor and an additional shaft extending coaxially to the main shaft. The additional shaft has a first shaft section connected to the compressor and a second shaft section connected to the turbine, the shaft sections separated from each other by a gap. At mutually facing ends, the two shaft sections have mutually corresponding structures. The gap between the two shaft sections is dimensioned such that, upon a break of the main shaft, the mutually corresponding structures of the mutually facing ends of the two shaft sections come into interaction and rotate relative to one another as a result of their differing rotational speeds. The mutually corresponding structures are formed such that the two shaft sections are moved away from one other in the event of twisting of the two shaft sections.

Centrifugal pump and method of adjusting the distance of the wear plate from the impeller of a centrifugal pump

A centrifugal pump for lifting clean water or water with suspended solids includes a hollow body having a front opening, a volute with a delivery port, and an impeller accommodated in the body and designed to be coupled to a motor, with blades tips substantially coplanar at an annular peripheral area. A cover of the front opening includes a flange, an annular wear plate, rigidly joined to the flange and located at a predetermined axial distance from an annular peripheral area of the impeller, and an adjustment system, mounted onto the flange and accessible from the outside, to controllably adjust the axial distance of the wear plate, and to both calibrate the axial position of the wear plate and lock the wear plate in the calibrated position. A method of adjusting the axial distance of the wear plate from an impeller in a centrifugal pump is also disclosed. 11. A centrifugal pump () for lifting clean water or water with suspended solids , comprising:{'b': 2', '2', '3', '4', '5, 'a hollow body () defining a center axis (L), said hollow body () having a front opening () and a volute () with a radial delivery port ();'}{'b': 8', '2', '8', '9', '10', '11, 'an impeller () accommodated in said hollow body () and designed to be coupled to a motor, said impeller () having blades () whose tips () are substantially coplanar at an annular peripheral area ();'}{'b': 12', '3', '12', '13', '14', '15', '16, 'a cover () for closing said front opening (), said cover () comprising a flange () with a central portion () which has a substantially axial suction port (), and a substantially radial peripheral portion ();'}{'b': 19', '13', '11', '8, 'sub': '1', 'a substantially annular wear plate (), integral with said flange () and located at a predetermined axial distance (d) from said annular peripheral area () of said impeller (); and'}{'b': 24', '19, 'sub': '1', 'an adjustment system () for controlled adjustment of said axial distance (d) of said wear plate ();'}{'b': 24', '13', '24', ...

Wastewater Pump

Wastewater pump comprising a reversible motor () driving a rotor () equipped with blades (). 1. Wastewater pump comprising a reversible motor driving a rotor equipped with blades , housed in a pump chamber with an axial inlet (EA) and tangential outlet (ST) , the pump being characterised in that{'b': 160', '165', '170', '167, 'the rotor () is a disc () bearing blades () each mounted on a radial spindle () borne by the rotor and pivoting between an active position raised in the forward direction of rotation (D) of the rotor and a position retracted against the disc for the reverse direction (R) of rotation of the rotor,'}{'b': 170', '171', '175', '172', '160', '172', '160', '171', '165, 'each blade () being composed of a plate () bearing an articulation node () engaged on the spindle and a cutter () on the back of the plate forming a prop supporting the plate in the active position when the rotor () is rotating in the forward direction (D), and the cutter () projecting in the peripheral direction when the rotor () turns in the reverse direction (R), the plate () being applied against the disc (),'}{'b': 130', '135, 'a fixed ring () surrounds the plate and carries at least one cutter ().'}2165166167171175. Wastewater pump according to claim 1 , characterised in that the disc () of the rotor includes windows () each housing an articulation spindle () of a plate () receiving the articulation node () of the plate.3175171171165a. Wastewater pump according to claim 2 , characterised in that the articulation node () extends over the centre of the edge () of the plate () claim 2 , the node being offset with respect to the plane of the plate so that this latter comes to be flat on the disc () when it is in the lowered position.4175166175166166160a. Wastewater pump according to claim 2 , characterised in that the node () and its window () are dimensioned so that in the raised position and in the lowered position the node () is supported against the respective downstream edge ...

A Multistage Pump With Axial Thrust Optimization

A multistage pump with axial thrust optimization is disclosed includes a pump discharge nozzle and a bypass system coupled to the pump discharge nozzle. The bypass system includes a throttle valve operatively coupled to the pump discharge nozzle, and a bypass line provided at the multistage pump. The bypass line is conducts flow from the throttle valve to a clearance gap of an axial thrust balancing arrangement. The throttle valve may be actuated to adjust a balancing flow through the bypass line such that pressure at the clearance gap is adjusted to increase and decrease fluid pressure at the clearance gap to balance axial thrust at different operating states of the multistage pump. 112-. (canceled)13. A multistage pump with axial thrust adjustment , comprising:a pump discharge nozzle; and a bypass line of the multistage pump, and', 'a throttle valve operatively coupled to the pump discharge nozzle, the throttle valve being configured to adjust a balancing flow through the bypass line, and, 'a bypass system coupled to the pump discharge nozzle, the bypass system including a clearance gap provided for balancing axial thrust in the multistage pump is configured to receive the balancing flow through the bypass line, and', 'the throttle valve is actuatable to adjust fluid pressure in the clearance gap to control an amount of axial thrust balancing as a function of an operating state of the multistage pump., 'wherein'}14. The multistage pump as claimed in claim 13 , whereinthe throttle valve is actuatable manually, automatically, semi-automatically, or one or more of manually, automatically and semi-automatically.15. The multistage pump as claimed in claim 13 , whereinthe throttle valve is actuatable to control the balancing flow operated such that the fluid pressure in the clearance gap is adjusted to a predetermined value based on the multistage pump operating state to reduce residual axial thrust.16. The multistage pump as claimed in claim 13 , whereinthe multistage ...

BLOOD PUMP CATHETER WITH DUAL-FUNCTION CONTINUOUS LUMEN

Apparatus and methods are described including a blood pump catheter that includes an axial shaft, and an impeller disposed on the axial shaft. A motor drives the impeller to pump blood, by rotating the impeller. A drive cable extends from the motor to the axial shaft, the drive cable being configured to impart rotational motion from the motor to the impeller by rotating. A distal tip portion is disposed at a distal end of the blood pump catheter. The drive cable, the axial shaft, and the distal tip portion define a continuous lumen therethrough from outside the subject's body to the distal end of the blood pump catheter. The continuous lumen facilitates insertion of the blood pump catheter into the subject's body over a guidewire, and, subsequently, provides a channel through which the purging fluid flows. Other applications are also described. 1. An apparatus for use with a guidewire and purging fluid , the apparatus comprising: an axial shaft;', 'an impeller disposed on the axial shaft;', "a motor configured to be disposed outside a body of a subject, and configured to drive the impeller to pump blood within the subject's body, by rotating the impeller;", "a drive cable configured to extend from outside the subject's body to the axial shaft, the drive cable being configured to impart rotational motion from the motor to the impeller by rotating; and", 'a distal tip portion disposed at a distal end of the blood pump catheter,', ["to facilitate insertion of the blood pump catheter into the subject's body over the guidewire, and", 'subsequently to provide a channel through which the purging fluid flows., "wherein the drive cable, the axial shaft and the distal tip portion define a continuous lumen therethrough from outside the subject's body to the distal end of the blood pump catheter, the continuous lumen being configured:"}], 'a blood pump catheter comprising2. The apparatus according to claim 1 , wherein the blood pump catheter comprises a left ventricular assist ...

SENSOR FOR BLOOD PUMP

Apparatus and methods are described including a blood pump that includes an impeller, and a motor configured to drive the impeller to pump blood by rotating the impeller. The impeller is configured to undergo axial motion, in response to changes in a pressure against which the impeller is pumping. A sensor detects the axial motion of the impeller, and generates a sensor signal in response thereto. A computer processor receives the sensor signal and generates an output in response thereto. Other applications are also described. 1. An apparatus comprising: an impeller;', 'a motor configured to drive the impeller to pump blood by rotating the impeller, the impeller being configured to undergo axial motion, in response to changes in pressure against which the impeller is pumping;', 'a sensor configured to detect the axial motion of the impeller, and to generate a sensor signal in response thereto; and', 'a computer processor configured to receive the sensor signal and to generate an output in response thereto., 'a blood pump comprising2. The apparatus according to claim 1 , wherein the impeller is configured to undergo axial back-and-forth motion in response to cyclical changes in pressure against which the impeller is pumping.3. The apparatus according to claim 1 , wherein the computer processor is configured to generate an output indicating a cardiac cycle of the subject claim 1 , in response to receiving the sensor signal.4. The apparatus according to claim 1 , wherein the computer processor is configured to change a rate of rotation of the impeller claim 1 , at least partially based upon the sensor signal.5. The apparatus according to claim 1 , wherein the blood pump catheter comprises a left ventricular assist device claim 1 , and wherein the impeller is configured to pump blood from a left ventricle of the subject to an aorta of the subject.6. The apparatus according to claim 5 , wherein the impeller is configured to undergo axial back-and-forth motion in response ...

PUMPS

A pump assembly and components therefor including an impeller which has flow inducer elements on an inner surface of a front shroud thereof, a flow directing device or strainer having passageways for delivering material to the impeller and at least one flow circulating passageway and a pump casing having an intake section with flow distribution vanes in the region of a feed opening adjacent the intake section. 119-. (canceled)20. A flow directing device for directing material in relation to an adjacent moving impeller , the device including a main body having an inner side and an outer side , a plurality of passageways extending between the inner side and the outer side of the main body , at least one passageway providing for the in use delivery of material to an opening of the impeller and at least one other passageway providing for the in use circulation of a flow of material past the impeller wherein said main body includes a peripheral side wall section and a plurality of concentrically arranged ring shaped elements operatively connected together and operatively connected to the peripheral side wall section , the annular spaces between the ring shaped elements providing for said passageways.21. A flow directing device according to wherein one of said ring shaped elements includes a skirt portion at the outer side of the main body which provides for a partial barrier between a circulation passageway and a delivery passageway.22. A flow directing device which is arranged to direct two material flows of a material containing liquid and particulates in response to the relative movement of an adjacent impeller claim 20 , the device being disposed upstream of the impeller claim 20 , the flows being:a mixing flow in which material is mixed and agitated in response to the movement of the adjacent impeller in use; anda pumping flow in which material is passed through the adjacent impeller in use and pumped to another location.23. A pump casing including:a main body ...

WASTE PUMP

The invention is a device which uses stored pressure to pump waste and a corresponding method of use. Waste is stored in a first chamber and the chamber is subsequently sealed by a valve and pressurised prior to a second valve opening. The pressurised waste is thereby ejected from the pressure chamber down an outlet pipe. 2. The pumping device according to claim 1 , further comprising a pressure chamber to store pressure generated by the pump claim 1 , wherein the pressure chamber selectively releases stored pressure into the waste chamber.3. The pumping device according to claim 1 , further comprising a macerator in the waste chamber.4. The pumping device according to claim 1 , further comprising a bypass conduit to enable a flow of waste around the waste chamber when the first and second valves are closed.5. The pumping device according to claim 4 , wherein the bypass conduit has an entry valve for controlling the flow of waste into the bypass conduit claim 4 , and an exit valve for controlling the flow of waste out of the bypass conduit.6. The pumping device according to claim 1 , further comprising a waste level sensor in the waste chamber claim 1 , whereinthe waste is forced from the waste chamber when the waste level in the waste chamber exceeds a predetermined value.7. The pumping device according to claim 1 , further comprising a clock claim 1 , whereinthe operation of the waste chamber is dependent upon the time of day as provided by the clock.8. The pumping device according to claim 1 , further comprising a vacuum chamber coupled to the waste chamber output claim 1 , the vacuum chamber having an inlet and an outlet.9. The pumping device according to claim 8 , wherein the pump is operable to reduce the pressure in the vacuum chamber.10. The pumping device according to claim 8 , further comprising a valve at the vacuum chamber output claim 8 , whereinthe device is operable to open the pressure chamber output and the vacuum chamber output when the pressure in ...

Cutting Blade Assembly

A cutting blade assembly establishes a bidirectional and/or multifaceted scissor-type cutting action to efficiently and effectively process various types of debris encountered by the cutting blade assembly. The assembly includes a cutting plate and a cutting hub configured for relative rotation. A cutting slot is formed in the cutting plate and intersects the axial face to define a cutting edge at the intersection of the cutting slot and the axial face. The cutting hub has a cutting arm positioned adjacent to the axial face. When the cutting plate and the cutting hub undergo relative rotation, the cutting arm passes adjacent to the cutting edge to perform a scissor-type cutting action.

SYSTEMS AND METHODS FOR CALIBRATING A TOOL

A calibration system includes a housing, a drive shaft within the housing, a load application apparatus operatively connected to the drive shaft to apply a force to the drive shaft, and a plurality of housing transducers operatively connected to the drive shaft to measure at least one of an in-line torque or a prevailing torque of the drive shaft. A method for calibrating a tool includes generating at least one of a pass or fail output from a processing unit based on whether a variance between a prevailing torque from a tool transducer and a prevailing torque from an external tool is within a predetermined variance threshold. A method for measuring prevailing torque in a tool includes determining whether a prevailing torque value is within a predetermined prevailing torque range and adjusting a shut-off threshold torque based on the prevailing torque. 1. A calibration system comprising:a housing;a drive shaft within the housing extending to a connection point on a wall of the housing;a load application apparatus operatively connected to the drive shaft to apply a force to the drive shaft; anda plurality of housing transducers operatively connected to the drive shaft to measure at least one of an in-line torque or a prevailing torque of the drive shaft.2. The calibration system as recited in claim 1 , further comprising a processing unit operatively connected to at least one of the plurality of housing transducers to provide a pass/fail output based on a comparison between the prevailing torque measurement from at least one of the housing transducers and a prevailing torque measurement from an external tool.3. The calibration system as recited in claim 1 , a selectively removable tool operatively connected to the connection point on the wall of the housing to apply a torque to the drive shaft.4. The calibration system as recited in claim 3 , wherein the selectively removable tool includes a tool transducer to determine at least one of an in-line torque and a ...

Cutting Assembly for a Chopper Pump

A chopper pump including a drive section having a drive shaft, and a housing coupled to the drive section and having an inlet, an outlet, and an internal cavity arranged between the inlet and the outlet. The chopper pump further includes an impeller received within the internal cavity and coupled to the drive shaft for rotation therewith. The impeller includes a recess formed therein. The chopper pump further includes a cutting insert received within the recess of the impeller. The cutting insert includes a cutting groove axially recessed into the cutting insert. The chopper pump further includes a cutting plate coupled to the housing within the internal cavity. The cutting plate includes a cutting extension that extends radially inward. Rotation of the impeller rotates the cutting blade past the cutting extension.

Impeller for a centrifugal slurry pump

A improved impeller for use in a centrifugal slurry pump is provided, comprising: a top shroud; a bottom shroud; and a middle portion therebetween, said middle portion having at least one substantially vertical wall defining a slurry flow channel, wherein the top shroud, bottom shroud and middle portion are configured as one piece to together define a first unitary body; at least one vane nose positioned at a leading edge of the at least one substantially vertical wall; and, optionally, a retaining ring mounted over the top shroud to secure the vane nose within the body.

VENTRICULAR ASSIST DEVICE

Apparatus and methods are described including a left ventricular assist device. The left ventricular assist device includes an impeller configured to be placed inside a subject's left ventricle, and to pump blood from the subject's left ventricle to the subject's aorta, by rotating. A frame is disposed around the impeller. A tube traverses the subject's aortic valve, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle. The distal portion of the tube defines one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube. A mesh is configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings. Other applications are also described. 1. An apparatus comprising: ["an impeller configured to be placed inside a left ventricle of a subject, and to pump blood from the subject's left ventricle to an aorta of the subject, by rotating;", 'a frame disposed around the impeller;', "a tube configured to traverse an aortic valve of the subject, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle, the distal portion of the tube defining one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube; and", 'a mesh configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings., 'a left ventricular assist device comprising2. The apparatus according to claim 1 , wherein the inner structures of the left ventricle include inner structures of the left ventricle selected from the group consisting of: an interventricular septum claim 1 , chordae tendineae claim 1 , papillary muscles claim 1 , and an apex of the left ventricle.3. The apparatus according ...

VENTRICULAR ASSIST DEVICE

Apparatus and methods are described including a left ventricular assist device. The left ventricular assist device includes an impeller configured to be placed inside a subject's left ventricle, and to pump blood from the subject's left ventricle to the subject's aorta, by rotating. A frame is disposed around the impeller. A tube traverses the subject's aortic valve, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle. The distal portion of the tube defines one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube. A braided element is configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings. Other applications are also described. 1. An apparatus comprising: ["an impeller configured to be placed inside a left ventricle of a subject, and to pump blood from the subject's left ventricle to an aorta of the subject, by rotating;", 'a frame disposed around the impeller;', "a tube configured to traverse an aortic valve of the subject, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle, the distal portion of the tube defining one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube; and", 'a braided element configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings., 'a left ventricular assist device comprising2. The apparatus according to claim 1 , wherein the braided element comprises a shape-memory material.3. The apparatus according to claim 1 , wherein the braided element is not covered.4. The apparatus according to claim 1 , wherein a distal tip of the braided element is configured to invert.5. The apparatus ...

A HYDRAULICALLY POWERED ROTARY ACTUATOR

A hydraulically powered rotary actuator is described including: a hydraulic linear actuator which is moveable in both directions between a retracted position and an extended position; a clutch device which is operable between an engaged condition and a disengaged condition; and a rotary output member; wherein the linear actuator is coupled to the rotary output member by way of the clutch. 116-. (canceled)17. A hydraulically powered rotary actuator comprising:a hydraulic linear actuator which is moveable in both directions between a retracted position and an extended position;a clutch device which is operable between an engaged condition and a disengaged condition; anda rotary output member,wherein the linear actuator is coupled to the rotary output member by way of the clutch.18. The hydraulically powered rotary actuator according to claim 17 ,wherein the clutch is hydraulically operated.19. The hydraulically powered rotary actuator according to claim 17 ,wherein the clutch device comprises an arm, andwherein the linear actuator is pivotally attached to the arm.20. The hydraulically powered rotary actuator according to claim 17 ,wherein the clutch device comprises at least two clutch discs which frictionally engage with one another.21. The hydraulically powered rotary actuator according to claim 20 ,wherein the at least two clutch discs engage at regions about their peripheries which are tapered.22. The hydraulically powered rotary actuator according to claim 17 ,wherein the clutch device operates by mechanical interengagement of clutch parts.23. The hydraulically powered rotary actuator according to claim 22 ,wherein the parts interengage by way of a series of projections.24. The hydraulically powered rotary actuator according to claim 17 ,wherein the hydraulically powered rotary actuator comprises an aspect of a centrifugal pump.25. The hydraulically powered rotary actuator according to claim 24 , further comprising at least a second rotary actuator comprising an ...

VENTRICULAR ASSIST DEVICE

Apparatus and methods are described including a left ventricular assist device that includes an impeller configured to be placed inside a left ventricle of a subject and to pump blood from the left ventricle to an aorta of the subject, by rotating. A frame is disposed around the impeller. A tube is configured to traverse an aortic valve of the subject, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle. The distal portion of the tube extends to a distal end of the frame and defines one or more lateral blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube. Other applications are also described. 1. An apparatus comprising: an impeller configured to be placed inside a left ventricle of a subject and to pump blood from the left ventricle to an aorta of the subject, by rotating;', 'a frame disposed around the impeller; and', "a tube configured to traverse an aortic valve of the subject, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle,", "the distal portion of the tube extending to a distal end of the frame and defining one or more lateral blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube."], 'a left ventricular assist device comprising2. The apparatus according to claim 1 , wherein the frame is shaped such that claim 1 , in a non-radially constrained configuration of the frame claim 1 , the frame defines a proximal conical portion claim 1 , a central cylindrical portion claim 1 , and a distal conical portion claim 1 , wherein the distal portion of the tube extends distally over the distal conical portion of the frame claim 1 , and wherein at least some of the one or more blood inlet openings are at least partially disposed over the ...

ROTARY-PULSATION DEVICE

The invention relates to devices for the treatment of aqueous pulps of organic materials, and can be used in the food industry, perfumes, in the production of technical and food alcohol, in the processing of organic waste, etc. The invention comprises a rotary-pulsation device containing a drive, a stator and a rotor installed in the housing, on the working surfaces of the stator and rotor are rows of teeth concentrically arranged around the circumference, between which grooves are formed, and the teeth of adjacent rows are offset relative to each other. The device contains a zone of abrasion of particles formed between the rotor blades mounted on the working surface of the rotor and additional stator grooves having an extension from the center of rotation, the stator has a fluid inlet fitting, equipped with a valve, a gas supply fitting is installed on the housing, connected by gas supply channels with gas flow distribution elements clamped by a sealing cover; and a vibration sensor is additionally installed on the outer side of the stator to diagnose conditions of the working bodies and for continuous correction the shaft rotation speed. The invention allows to increase reliability of the rotary-pulsation device by reducing a number of stops for manual cleaning and to reduce failure rates due to breakage; to increase processing efficiency. The device expands a scope of usage due to a possibility of automatic processing of water pulps containing large-sized and extended fragments; it provides a saturation of the treated pulp with small gas bubbles; finally, automation capabilities may be expanded when integrating the device into the substrate processing systems. 1. A rotary pulsation device , comprising a drive , a stator and a rotor installed in a housing , wherein working surfaces of the stator and rotor contain at least three rows of teeth , each row forms a circle , all rows are concentrically arranged around a rotation axis , grooves are formed between ...

RELATING TO PUMPS

A pump assembly and components therefor including an impeller which has flow inducer elements on an inner surface of a front shroud thereof, a flow directing device or strainer having passageways for delivering material to the impeller and at least one flow circulating passageway and a pump casing having an intake section with flow distribution vanes in the region of a feed opening adjacent the intake section. 136-. (canceled)53. A pump casing arrangement , comprising:a main pump body section having a pumping chamber therein, and a discharge outlet extending from the pumping chamber;a strainer section having an intake region therein, with one or more feed apertures located at the intake region;an inlet between the intake region and the pumping chamber; anda plurality of flow distribution vanes positioned in the region of the inlet.541. The pump casing arrangement of claim , wherein the flow distribution vanes are elongate protrusions surrounding the inlet.552. The pump casing arrangement of claim , further comprising a back wall having a center opening defining the inlet between the intake region and the pumping chamber , and wherein the elongate protrusions are formed , at least in part , in the back wall.561. The pump casing arrangement of claim , wherein the plurality of flow distribution vanes are each spaced apart from each other about the inlet.571. The pump casing arrangement of claim , wherein the main pump body section further comprises a peripheral side wall surrounding the pumping chamber and from which the discharge outlet extends.581. The pump casing arrangement according to claim further comprising:a first inlet in a front side of the main pump body section, the inlet between the intake region and the pumping chamber defining a second inlet.596. The pump casing arrangement according to claim , wherein each of said plurality of flow distribution vanes projects from an inner surface of a side wall of the strainer section.606. The pump casing arrangement ...

Cutter system for pump suction

A centrifugal pump with a cutter mechanism has a toothed cutter auger affixed to an impeller, and a toothed cutter stator affixed to the volute casing. The auger is a rotor cutter preferably profiled radially to match the inlet geometry of the impeller vanes while extending along its central axis towards the pump suction. The auger is preferably radially concentric to the impeller and includes vanes numbered preferably to match the number of vanes on the impeller. The auger is affixed to the impeller, preferably with a lockscrew threaded into a common pump shaft. The radial profile of the auger essentially makes a continuous vane with the impeller, and prevents solids from hanging on the inlet vane tip or center void while providing a smooth flow transition into the impeller.

CENTRIFUGAL PUMP WITH SELF-CLEANING WEAR PLATE

A centrifugal pump having an impeller assembly within a pump housing and a wear plate positioned in confronting relationship with the impeller assembly. The wear plate includes an annular wear plate portion defining an impeller side that confronts the impeller and further defines an annular portion defining an eye formed generally centrally and has a center point that is substantially aligned with a rotational axis of the impeller. The eye includes a plurality of peripheral notches separated by tooth-like spacer gaps. At least one protrusion extends from the eye towards the impeller at a predetermined angle. Inner and outer radial grooves are formed in the wear plate surface that confronts the impeller. 1. A centrifugal pump , comprisinga) a pump housing;b) an impeller assembly mounted to said pump housing; i) an annular wear plate portion defining an impeller side that confronts said impeller when said wear plate is mounted within said pump housing;', 'ii) said annular portion defining an eye formed generally centrally in said portion and is substantially aligned with a rotational axis of said impeller; and', 'iii) at least one protrusion extending from said eye toward said impeller., 'c) a wear plate mounted within said housing in a confronting relationship with an impeller forming part of said impeller assembly, said wear plate comprising2. The pump of wherein said notches are wider in dimension than said tooth-like gaps.3. The centrifugal pump of said wherein said protrusion includes a prong extending at an angle from a mounting segment formed on said wear plate portion.4. The centrifugal pump of wherein said prong extends at an angle of substantially 45° with respect to a plane defined by said wear plate portion.5. The centrifugal pump of wherein said prong is welded to said mounting segment.6. The centrifugal pump of wherein said prong and mounting segment are integrally formed with said wear plate portion.7. The centrifugal pump of wherein said wear plate is ...

PROGRESSING CAVITY DEVICE WITH CUTTER DISKS

A stator for a helical gear device includes a first section having first helically convoluted chamber with a set of radially inwardly extending lobes and a second section adjacent to the first section. The second section includes a stack of cutter disks. Each cutter disk includes a front surface, a rear surface, an interior surface defining a central opening extending from the front surface to the rear surface, a forward cutting edge, and a rearward cutting edge. The interior surface forms a same number of lobes for the central opening as the set of radially inwardly extending lobes in the first section. Each cutter disk is aligned along a common centerline, and each cutter disk is rotated slightly relative to each other to form a second helically convoluted chamber with a same pitch as the first helically convoluted chamber. The second helically convoluted chamber exposes, to materials passing through, portions of the forward cutting edge or the rearward cutting edge of each cutter disk. 1. A stator for a helical gear device , comprising:a first section including a first helically convoluted chamber with a set of radially inwardly extending lobes; and a front surface,', 'a rear surface,', 'an interior surface defining a central opening extending from the front surface to the rear surface,', 'a first cutting edge along the front surface and the interior surface, and', 'a second cutting edge along the rear surface and the interior surface,, 'a second section adjacent to, and axially aligned with, the first section, the second section including a stack of cutter disks, each of the cutter disks includingthe interior surface forming a same number of lobes for the central opening as the set of radially inwardly extending lobes, each of the cutter disks being aligned along a common centerline, and each of the cutter disks being rotated slightly relative to each other such that the stack of cutter disks forms a second helically convoluted chamber with a same pitch as the ...

CENTRIFUGAL PUMP, A SHAFT THEREFOR AND A SLEEVE FOR COUPLING THE SHAFT OF A CENTRIFUGAL PUMP TO A SHAFT OF A DRIVE MOTOR

The present invention relates to a centrifugal pump, especially to a close coupled centrifugal pump. The centrifugal pump () comprises a shaft () coupled with the shaft () of the electric drive motor by means of a separate threaded coupling sleeve (). The threaded coupling sleeve () is coupled with the shaft () of the drive motor by means of a key () and an adjusting nut (). 118181612201820122012181810201224124224324424524201220122412422432442452426283638568241242243244245242012. A centrifugal pump having a shaft () , an impeller on the shaft () and a volute casing housing the impeller , the volute casing being attached by fastening means () to an electric drive motor () having a shaft () , the shaft () of the centrifugal pump being coupled to the shaft () of the electric drive motor () such that the shaft () of the drive motor () supports both the shaft () and the impeller of the centrifugal pump , the shaft () of the centrifugal pump () being attached to an end of the shaft () of the electric drive motor () by means of a separate axially adjustable coupling sleeve ( , , , , , ) arranged on the shaft () of the drive motor () , characterized in that the shaft () of the drive motor () and the separate axially adjustable coupling sleeve ( , , , , ; ) are provided with means ( , , , ; S , ) for adjusting the axial position of the axially adjustable coupling sleeve ( , , , , ; ) in relation to the shaft () of the drive motor ().22636382412422432442426201228. The centrifugal pump as recited in claim 1 , characterized in that the adjusting means comprises an adjusting nut () arranged in threaded communication ( claim 1 , ) with the separate axially adjustable coupling sleeve ( claim 1 , claim 1 , claim 1 , claim 1 , ) claim 1 , the adjusting nut () being arranged to be fastened to the shaft () of the drive motor () by means of a locking screw () or by means of a headless bolt and a locking nut.324124424524624181042142442542642241244245246244414444454464418. The ...

Rotary Parts For A Slurry Pump

A rotary part being an impeller or expeller for a pump which can be rotated in a forward direction about a rotation axis X-X. The rotary part comprises a shroud having an outer peripheral edge portion and opposed first, and second faces, a plurality of expelling vanes projecting from one or more of the second faces of the shroud, each expelling vane having an inner side and an outer side which is at or near the outer peripheral edge portion of the shroud, the expelling vanes extending in a direction between the rotation axis X-X towards the outer peripheral edge portion of the shroud, each expelling vane further including a leading side facing in the forward direction and having an inner edge and an outer edge, a trailing side facing in a rearward direction and an up per side spaced from the outer face of the shroud. The leading side includes a forwardly inclined section which is inclined forwardly from a radial line Y-Y extending from the rotation axis X-X and which passes through the inner edge of the leading side. 120-. (canceled)21. An impeller for a pump which can be rotated in a forward direction about a rotation axis X-X; the impeller comprising:two shrouds, one being a front shroud, the other being a back shroud, pumping vanes extending between the shrouds, the front and back shrouds each having an outer peripheral edge portion and opposed inner and outer faces,a plurality of expelling vanes extending along the outer face of at least one of the front shroud and back shroud each expelling vane having an inner side and an outer side which is at or near the outer peripheral edge portion of the at least one of the front and back shroud, the expelling vanes extending in a direction between the rotation axis X-X towards the outer peripheral edge portion of the at least one of the front and back shroud, a leading side facing in the forward direction and having an inner edge that is the innermost edge of the expelling vane and an outer edge that is an outermost edge ...

GRINDER PUMP

A grinder pump has a housing having a bottom wall formed with an intake port, a drive shaft rotatable in the housing about an axis and projecting axially through the bottom wall, and a pump in the housing having a rotor connected to the shaft and operable to draw liquids and comminuted solids in through the port. A cutter head outside the housing at the bottom wall carries a blade juxtaposed with the bottom wall. The cutter head is fixed on and rotatable with the shaft for comminuting solids drawn into the intake port. An annular shield wall projects axially from the bottom wall around the cutter head and is formed with at least one axially projecting bump forming a valley constituting an intake opening through which liquid and solids can be drawn to the intake port by the pump. 1. A grinder pump comprising:a housing having a bottom wall formed with an intake port;a drive shaft rotatable in the housing about an axis and projecting axially through the bottom wall;a pump in the housing having a rotor connected to the shaft and operable to draw liquids and comminuted solids in through the port;a cutter head outside the housing at the bottom wall and carrying a blade juxtaposed with the bottom wall, the cutter head being fixed on and rotatable with the shaft for comminuting solids drawn into the intake port; andan annular shield wall projecting axially from the bottom wall around the cutter head and formed with at least one bump forming at least one axially open valley constituting an intake opening through which liquid and solids can be drawn to the intake port by the pump.2. The grinder pump defined in claim 1 , wherein there are three angularly spaced bumps forming three angularly spaced and axially outwardly open valleys.3. The grinder pump defined in claim 1 , wherein the bumps are of different axial heights.4. The grinder pump defined in claim 1 , wherein the bumps are nonuniformly angularly spaced relative to the axis.5. The grinder pump defined in claim 1 , ...

SYSTEM AND METHOD FOR CONTINUOUS SOLIDS SLURRY DEPRESSURIZATION

A system includes a first pump having a first outlet and a first inlet, and a controller. The first pump is configured to continuously receive a flow of a slurry into the first outlet at a first pressure and to continuously discharge the flow of the slurry from the first inlet at a second pressure less than the first pressure. The controller is configured to control a first speed of the first pump against the flow of the slurry based at least in part on the first pressure, wherein the first speed of the first pump is configured to resist a backflow of the slurry from the first outlet to the first inlet. 1. A system comprising:a first pump comprising a first outlet and a first inlet, wherein the first pump is configured to continuously receive a flow of a slurry into the first outlet at a first pressure and to continuously discharge the flow of the slurry from the first inlet at a second pressure less than the first pressure; anda controller configured to control a first speed of the first pump against the flow of the slurry based at least in part on the first pressure, wherein the first speed of the first pump is configured to resist a backflow of slurry through the first pump from the first outlet to the first inlet.2. The system of claim 1 , wherein the first pump comprises a pair of opposing discs coupled to a shaft and configured to rotate in a first direction against the flow of the slurry claim 1 , the first outlet is tangentially aligned opposite to the first direction claim 1 , the first inlet is axially aligned with the shaft claim 1 , the pair of opposing discs is configured to drive a portion of the slurry in a first radial direction from the shaft towards the first outlet claim 1 , and the portion of the slurry is configured to recirculate in a second radial direction opposite to the first radial direction towards the first inlet based at least in part on a differential pressure between the first pressure and the second pressure.3. The system of claim 2 ...

CONTROLLABLE COOLANT PUMP

A controllable coolant pump for a coolant circuit of an internal combustion engine. The coolant pump has a hollow bearing shaft which is supported in a bearing sleeve, carries a drive wheel at one end, and is permanently connected to an impeller at its opposite end, the impeller having a stop surface at the end face thereof. The space between the stop surface and the impeller forms the pumping cross section for a coolant. A piston that can be axially displaced by an actuation unit is disposed in the hollow bearing shaft and provided at its outer end with a guide plate having a collar facing the impeller for completely or partially closing the pumping cross section in accordance with the position of the piston. The coolant pump has a second actuation unit, and the piston can be displaced by the first or second actuation unit. 19-. (canceled)10. A controllable coolant pump for a coolant circuit of an internal combustion engine , the coolant pump comprising:a hollow bearing shaft supported in a bearing sleeve and carrying a drive wheel at one end and permanently connected to an impeller at an opposite end, the impeller having a stop surface at an end face, a space between the stop surface and the impeller forming a pumping cross section for a coolant;a piston axially disposed in the hollow bearing shaft and provided at an outer end with a guide plate having a collar facing the impeller for completely or partially closing the pumping cross section in accordance with the position of the piston; anda first and a second actuation unit, the piston displaceable by the first or second actuation unit.11. The controllable coolant pump as recited in further comprising a lever pivotable about an axis of rotation claim 10 , the lever being pivotable by the first or second actuation unit.12. The controllable coolant pump as recited in wherein the first or second actuation unit defines an axis of rotation of the lever.13. The controllable coolant pump as recited in wherein the ...

Pump for pumping liquid as well as impeller assembly

A pump for pumping a liquid, includes an impeller and an axially extending drive shaft assembly, wherein a distal end of the drive shaft assembly is received in a central recess of the impeller. The drive shaft assembly includes a drive shaft and a connector. The connector includes a sleeve that is in telescopic engagement with the drive shaft. During operation of the pump the impeller is displaceable in the axial direction in relation to the sleeve between a distal rest position and a proximal position. The impeller is biased towards the distal rest position by a spring member arranged between the sleeve and the impeller. The connector includes a hollow adjustment screw that is in threaded engagement with an interior side of the sleeve to limit the maximum degree of telescopic overlap between the sleeve and the drive shaft

CUTTING ASSEMBLY FOR A CHOPPER PUMP

Embodiments of the invention provide a cutting assembly for a chopper pump. The cutting assembly includes a cutting insert having a cutting blade extending radially therefrom, and an impeller having a central hub, a plurality of vanes, and an insert surface. The insert surface defines an axial recess that is dimensioned to receive the cutting insert therein. The cutting assembly further includes a cutting plate having a plate hub with a cutting extension protruding radially inward therefrom. Rotation of the impeller rotates the cutting blade past the cutting extension. 1. A cutting assembly for a chopper pump , the cutting assembly comprising:a cutting insert including at least one cutting blade extending radially therefrom and at least one cutting groove axially recessed into the cutting insert;an impeller including a central hub, a plurality of vanes, and an insert surface, wherein the insert surface defines an axial recess dimensioned to receive the cutting insert therein; anda cutting plate including a plate hub having a cutting extension protruding radially inward therefrom.2. The cutting assembly of claim 1 , wherein the at least one cutting groove further includes a radial section axially recessed into the cutting insert and an axial section radially recessed into the cutting insert.3. The cutting assembly of claim 2 , wherein the at least one cutting groove defines a substantially rectangular recess.4. The cutting assembly of claim 1 , wherein the hardness of the cutting insert is greater than the hardness of the impeller.5. The cutting assembly of claim 4 , wherein the cutting insert comprises a hardenable steel.6. The cutting assembly of claim 1 , wherein the cutting insert further includes an insert hub claim 1 , the insert hub having a first protrusion extending substantially perpendicular from a proximal end of the at least one cutting blade in a first direction.7. The cutting assembly of claim 6 , wherein the cutting insert further includes a second ...

ADJUSTABLE RIGID SPACER COUPLING

Technologies are described for devices and methods for adjusting a position of impellers within a bowl assembly. The devices may comprise an adjuster at the second end of a spacer coupling. The adjuster may include an adjuster sleeve. The adjuster sleeve may be a cylindrical sleeve. The adjuster sleeve may be threaded on an internal side. The adjuster sleeve may be spaced from the driven hub so that the adjuster sleeve can rotate around a driven shaft. The adjuster sleeve may threadedly mate and engage with an externally threaded first end of the driven shaft when the adjuster sleeve is rotated. The rotation of the adjuster sleeve may adjust a position of the driven shaft with respect to the driven hub and may thereby adjust a position of an impeller attached to a second end of the driven shaft with respect to a stationary bowl. 1. A device for adjusting a position of impellers within a bowl assembly of a pump , the device comprising:a spacer coupling, wherein a first end of the spacer coupling is connected to a drive hub and a second end of the spacer coupling is connected to a driven hub; andan adjuster at the second end of the spacer coupling, wherein the adjuster includes an adjuster sleeve;wherein the adjuster sleeve is a cylindrical sleeve with an internal side and an external side, the adjuster sleeve is threaded on the internal side, the adjuster sleeve is spaced from the driven hub so that the adjuster sleeve can rotate around a driven shaft, and the adjuster sleeve threadedly mates and engages with an externally threaded first end of the driven shaft when the adjuster sleeve is rotated, and the rotation of the adjuster sleeve adjusts a position of the driven shaft with respect to the driven hub, and thereby the rotation of the adjuster sleeve adjusts a position of an impeller attached to a second end of the driven shaft with respect to a stationary bowl assembly of the pump.2. The device of claim 1 , further comprising a set screw threaded through an ...

Impeller for a Centrifugal Pump, and Centrifugal Pump

An impeller for a centrifugal pump that includes a housing, an inlet, an outlet, and a chamber in the housing and in fluidic contact with the inlet and the outlet is described. The impeller is rotatably accommodated in the chamber, and a gap is between a rear side of the impeller and a housing wall. To improve the compatibility with media forming deposits, the impeller has at least one scraper that is integrally bonded at a first position and a second position to the impeller. The first position and the second position are at a distance from each other, and a cleanable clearance is in this space between the scraper and the rear side of the impeller. 1. An impeller for a centrifugal pump comprising a housing , an inlet , an outlet , and a chamber in the housing in fluidic contact with the inlet and the outlet , wherein the impeller is rotatably accommodated in the chamber and a gap between a rea side of the impeller and a housing wall of the housing;a scraper integrally bonded with the impeller at a first location and a second location, wherein the first location and the second location are spaced apart from each other; anda cleanable clearance in a space between the first location and the second location of the scraper and the rear side.2. The impeller according to claim 1 , wherein the scraper has bottom recesses on a side facing the impeller.3. The impeller according to claim 2 , wherein the rear side has a structure in the form of circular peripheral grooves and peripheral bars.4. The impeller according to claim 1 , wherein a radial extension of the scraper starts at a defined distance from a hub of the impeller.5. The impeller according to one of the preceding claims claim 1 , wherein the scraper is designed and arranged so that it is balanced relative to a rotary axis of the centrifugal pump.6. The impeller according to claim 1 , wherein a structure on the rear side of the impeller comprises at least one radial groove extending in a radial direction.7. The ...

DOUBLE-CONE PUMPING DEVICE

The invention relates to a double-cone pumping device, designed to provide for flow of the liquid product only on the outer side of the rotating cones, making it compatible with mixing of particulate-containing liquid products; and specifically advanced for high pumping capacity in mixing-agitation applications in food processing. The double-cone pumping device comprises two cones that are axially symmetrically arranged with their large bases abutting, and rotatable around the axis, and an axial shaft that connects to driving means. The invention also relates to a use of this pump in processing of liquid food. 1. A double-cone pumping device , comprising two cones , each having a large base , that are axially symmetrically arranged with their large bases abutting , and rotatable around the axis , and an axial shaft that connects to a driving member.2. A double-cone pumping device according to claim 1 , wherein: the double-cone pumping device comprises a flat disc and at least two rotating vanes and the two cones are arranged so that their large bases lay on opposite faces of the flat disc; the vanes are located symmetrically onto the opposite sides of the flat disc; and the flat disc and the vanes are rotatable with the two cones.3. A double-cone pumping device according to claim 1 , wherein a physical body made of the combined two cones can be empty or can have an internal closed cavity.4. A double-cone pumping device according to claim 1 , wherein a physical body made of the cones is substantially full bodies.5. A double-cone pumping device according to claim 2 , wherein the flat disc comprises a plurality of vanes located symmetrically on opposite faces of the flat disc.6. A double-cone pumping device according to claim 2 , wherein the vanes on the flat disc extend entirely along the rotating cones claim 2 , in a spiral configuration.7. A double-cone pumping device according to claim 1 , wherein the two cones are made out of one piece.8. A method for the ...

SPRING REGULATED VARIABLE FLOW ELECTRIC WATER PUMP

An electric water pump having a motor with an axially moveable rotor unit. A rotary pump member is fixed for axial movement with the rotor unit to vary its position within a pump chamber so as to vary the flow rate through the pump chamber. 1. A variable flow electric water pump for use in an engine coolant system of a motor vehicle , the electric water pump comprising:a pump housing defining a fluid chamber, a motor chamber, a fluid inlet and a discharge port providing a flowpath for coolant flowing through said fluid chamber, and an interface established between said fluid inlet and said fluid chamber defining a flange surface;an electric motor disposed in said motor chamber of said pump housing and including a stationary stator assembly and a rotor unit having a rotor shaft supported for rotation about a longitudinal axis and extending into said fluid chamber;an impeller fixed to said rotor shaft for rotation in said fluid chamber and operable to pump coolant from said fluid inlet to said discharge port, said impeller having an outer rim surface aligned with said flange surface of said pump housing; anda biasing arrangement for normally locating said rotor unit in a first position that is axially offset relative to said stator assembly for locating said impeller in a retracted position within said fluid chamber to provide a low flow characteristic between said fluid inlet and said discharge outlet when said impeller is driven by said rotor shaft at a low rotor-speed, said biasing arrangement being configured to exert a preload on said rotor unit,wherein a first clearance gap is established between said outer rim surface of said impeller and said flange surface of said pump housing when said impeller is located in its retracted position, said first clearance gap being configured to decrease the coolant flow rate between said fluid inlet and said discharge outlet,wherein rotation of said impeller at a high rotor speed causes said rotor unit to overcome said preload ...

ROTARY PARTS FOR A SLURRY PUMP

A rotary part for a pump and related systems and methods are provided. The rotary part can be rotated in a forward direction about a rotation axis X-X and may include shroud(s) and expelling vane(s). The expelling vane(s) may have a leading side facing in the forward direction characterised in that the leading side includes a forwardly inclined section which is inclined forwardly. 118-. (canceled)19. A rotary part for a pump which can be rotated in a forward direction about a rotation axis X-X; the rotary part comprising:one or more shrouds having an outer peripheral edge portion and opposed first, and second faces,a plurality of expelling vanes extending along one or more of the second faces of the shroud,each expelling vane having an inner side and an outer side which is at or near the outer peripheral edge portion of the shroud,the expelling vanes extending in a direction between the rotation axis X-X towards the outer peripheral edge portion of the shroud, a leading side facing in the forward direction and having an inner edge and an outer edge,', 'a trailing side facing in a rearward direction, and', 'an upper side spaced from the second face of the shroud,', 'characterised in that the leading side includes a forwardly inclined section which is inclined forwardly from a radial line Y-Y extending from the rotation axis X-X and which passes through the inner edge of the leading side,', 'the forwardly inclined section extending from the inner edge towards the shroud outer peripheral edge portion., 'each expelling vane further having20. The rotary part according to claim 19 , characterised in that the forwardly inclined section has a profile which is generally linear.21. The rotary part according to claim 19 , characterised in that the forwardly inclined section extends from the inner edge and terminates at the outer edge of the leading side.22. The rotary part according to claim 19 ,wherein the forwardly inclined section extends from the inner edge and terminates ...

Rotodynamic Pumps that Resist Clogging

The disclosure provides a rotodynamic pump that resists clogging when pumping fluid that contains solid particles having a density that is greater than the fluid. The pump also includes a rotatable impeller assembly having at least one of a front shroud or a rear shroud that separates the pumping cavity from and defines with a casing at least one respective front cavity or rear cavity. The pump casing also has a primary passage between the pumping cavity and the discharge collector cavity, and at least one auxiliary passage connecting the discharge collector cavity and the at least one front cavity or rear cavity, wherein rotation of the rotatable impeller assembly causes the solid particles to move from the at least one front cavity or rear cavity radially outward to and through the at least one auxiliary passage to the discharge collector cavity. 1. A rotodynamic pump that resists clogging when pumping fluid that contains solid particles having a density that is greater than the fluid , comprising:a stationary casing having a front portion, a rear portion, an inlet port, an outlet port, a pumping cavity, and a discharge collector cavity located radially outward from the pumping cavity and in fluid communication with the outlet;a rotatable impeller assembly comprising vanes that terminate along a side of at least one of a front shroud or a rear shroud, wherein the at least one of the front shroud or rear shroud separates the pumping cavity from and defines with the casing at least one respective front cavity or rear cavity;the stationary casing further comprising a primary passage between the pumping cavity and the discharge collector cavity, and at least one auxiliary passage connecting the discharge collector cavity and the at least one front cavity or rear cavity; andwherein rotation of the rotatable impeller assembly imparts centrifugal force on solid particles within fluid in the at least one front cavity or rear cavity and causes the solid particles to move ...

SHREDDING ASSEMBLY FOR A GRINDER PUMP AND CENTRIFUGAL GRINDER PUMP

A shredding assembly for a grinder pump includes a stationary shredding ring mounted to an inlet of the pump, and a cutting device rotatable about an axial direction and fixed to a shaft of the pump. The shredding ring includes a top face, a bottom face, and a central opening extending from the top face to the bottom face and delimited in a radial direction by an inner periphery. Slots extending in the axial direction are formed in the inner periphery. The cutting device is positioned in the central opening of the shredding ring, and includes a front face and a back face. The front face includes a plurality of first cutting members extending in the axial direction and facing the slots. The back face includes a second cutting member projecting beyond the central opening with respect to the radial direction. 1. A shredding assembly for a grinder pump , comprising:a stationary shredding ring configured to be mounted to an inlet of the pump; anda cutting device configured to rotate about an axial direction and configured to be fixed to a shaft of the pump,the shredding ring comprising a top face, a bottom face, and a central opening extending from the top face to the bottom face and being delimited in a radial direction by an inner periphery, a plurality of slots extending in the axial direction formed in the inner periphery,the cutting device being positioned in the central opening of the shredding ring, and comprising a front face and a back face, the front face comprising a plurality of first cutting members extending in the axial direction and facing the slots in the inner periphery, the back face of the cutting device comprising at least one second cutting member projecting beyond the central opening with respect to the radial direction.2. The shredding assembly in accordance with claim 1 , whereinthe at least one second cutting member comprises exactly two second cutting members with the two second cutting members being arranged diametrically opposite at an outer ...

ASSEMBLY FOR REDUCING SIZE OF SUSPENDED SOLIDS

An assembly for reducing the size of suspended solids in a pump intake including a rotatable element and a screen configured to locate in a position between a pump and the rotatable element. 150-. (canceled)51. An assembly to receive an incoming fluid , to reduce the size of suspended solids in the incoming fluid to generate an output fluid , and to provide the output fluid to a pump , the assembly comprising:a rotatable element having at least two arm members extending generally radially from a central hub; anda screen positioned between the pump and the rotatable element, wherein the pump drives fluids having the suspended solids through the screen, and wherein the rotatable element is operable to shear at least a portion of the suspended solids going through the screen and reduce their sizes when one of the at least two arm members moves adjacent the screen.52. The assembly according to claim 51 , wherein each of the at least two arm members include opposed upstream and downstream sides claim 51 , a leading side facing a first direction claim 51 , and an opposed trailing side facing away from the first direction claim 51 , wherein the leading side follows a curvature along a radial direction of the leading side such that the leading side curves inwardly towards the trailing side.53. The assembly according to claim 51 , wherein the trailing side includes a curvature along a radial direction of the trailing side such that the trailing side curves outwardly from the leading side.54. The assembly according to claim 51 , wherein the rotatable element is rotatable in a first direction about a rotation axis claim 51 , wherein the at least two arm members include a leading side facing in the first direction claim 51 , the leading side having a peripheral edge distal from the rotation axis; and a trailing side facing away from the first direction claim 51 , the trailing side having a peripheral edge distal from the rotation axis claim 51 , wherein the leading side ...

LEVITATING CEILING FAN

An elevating ceiling fan including a downrod assembly having a base and a plurality of first magnetic devices, a rotor having a plurality of second magnetic devices, and a plurality of fan blades attached to the rotor. The plurality of first magnetic devices are capable of alternating polarity in order to induce rotation of the rotor and plurality of fan blades, where rotation of the rotor and the plurality of fan blades causes the rotor and the plurality of fan blades to elevate above the base of the downrod assembly. 1. An elevating ceiling fan comprising:a downrod assembly including a base and a plurality of first magnetic devices;a rotor having a plurality of second magnetic devices; anda plurality of fan blades attached to the rotor,wherein the plurality of first magnetic devices are capable of alternating polarity in order to induce rotation of the rotor and plurality of fan blades, andwherein rotation of the rotor and the plurality of fan blades causes the rotor and the plurality of fan blades to elevate above the base of the downrod assembly.2. The elevating ceiling fan of claim 1 , wherein each of the plurality of fan blades has a cross-sectional shape in the form of an airfoil.3. The elevating ceiling fan of claim 1 , wherein the plurality of fan blades attach to the rotor at an angle with respect to a horizontal plane through the base.4. The elevating ceiling fan of claim 1 , wherein the speed at which the plurality of fan blades rotate corresponds to a height above the base that the plurality of fan blades elevate.5. A ceiling fan comprising:a motor having a stator and a rotor;a downrod assembly having a longitudinal slot therein and a base portion; anda plurality of fan blades attached to the rotor,wherein the motor is capable of sliding along the downrod assembly in order to change the position along the downrod assembly that the plurality of fan blades rotate.6. The ceiling fan of claim 5 , wherein each of the plurality of fan blades has a cross- ...

SHAFT BEARING DEVICE WITH A LIFTING DEVICE

A shaft bearing device for a pump includes an antifriction bearing, which can be connected to an axially displaceable pump shaft. A spring is arranged at the antifriction bearing in such a way, that a spring force can be transmitted to an outer ring of the antifriction bearing by the spring in a mounting condition of the shaft bearing device. A lifting element attached to the pump shaft and a corresponding counter element are separated from each other by the spring force in a starting state and/or in a shutdown state of the pump. 1. A pump , comprising:an axially displaceable pump shaft;a shaft bearing device, the shaft bearing device including an antifriction bearing configured to be connected to the axially displaceable pump shaft, and being a radial bearing in contact with a bearing housing and configured to absorb radial forces of the pump shaft, the antifriction bearing comprising an inner ring and an outer ring, a first surface on the outer ring on a first side of the antifriction bearing transverse to an axis of the pump shaft at a first end of the antifriction bearing abuts a surface of the bearing housing when the pump is in a shutdown state and a second surface on the inner ring on a second side, opposite the first side, of the antifriction bearing transverse to the axis of the pump shaft at a second end of the antifriction bearing abuts a surface of the shaft; anda spring arranged at the antifriction bearing such that a spring force is capable of being transmitted to the antifriction bearing by the spring in a mounting condition of the shaft bearing device such that a lifting element attached to the pump shaft and a corresponding counter element are separated from each other in at least one of a starting state and a shutdown state of the pump.2. The pump according to claim 1 , wherein the antifriction bearing comprises an inner ring and an outer ring.3. The pump according to claim 1 , wherein the spring is one of at least three springs arranged over a ...

VENTRICULAR ASSIST DEVICE

Apparatus and methods are described including placing an impeller of a ventricular assist device inside a left ventricle of a subject, with a frame disposed around the impeller. The impeller is driven to pump blood from the left ventricle to an aorta of the subject, by rotating the impeller. The impeller is placed inside the left ventricle such that the impeller is allowed to undergo axial motion with respect to the frame, in response to cyclical changes in a pressure difference between the left ventricle and the aorta. Other applications are also described. 1. An apparatus , comprising: an impeller configured to be placed inside a left ventricle of a subject;', 'a frame configured to be disposed around the impeller; and', 'a motor configured to drive the impeller to pump blood from the left ventricle to an aorta of the subject, by rotating the impeller,', 'the impeller being configured to undergo axial back-and-forth motion with respect to the frame, in response to cyclical changes in a pressure difference between the left ventricle and the aorta., 'a ventricular assist device comprising2. The apparatus according to claim 1 , wherein:the impeller comprises proximal and distal bushings;the frame comprises proximal and distal bearings; and being coupled to at least one of the proximal and distal bushings of the impeller, such that the at least one bushing is held in an axially-fixed position with respect to the axial shaft, and', 'not being held in an axially-fixed position with respect to the proximal and distal bearings., 'the ventricular assist device further comprises an axial shaft configured to pass through the proximal and distal bearings defined by the frame and the proximal and distal bushings of the impeller, the axial shaft3. The apparatus according to claim 1 , wherein the ventricular assist device does not include any thrust bearing configured to be disposed within a body of the subject.4. The apparatus according to claim 1 , wherein the ventricular ...

REDUCING CENTRIFUGAL PUMP BEARING WEAR THROUGH DYNAMIC MAGNETIC COUPLING

A pump drive for an extracorporeal blood pumping system including an adjustable drive magnet. The pump drive may be coupled to a blood pump which includes a pump impeller. The pump drive may include a stepper motor for dynamically adjusting the position of the drive magnet. The position of the drive magnet may be varied to vary the distance between the drive magnet and an impeller magnet of the pump impeller. Adjusting the position of the drive magnet may include dynamically adjusting the drive magnet and may include axially moving the drive magnet to thereby vary a magnetic attraction force between the drive magnet and the impeller magnet which may thereby minimize forces acting on one or more bearings of a pump impeller. 1. A blood pump comprising:a pump impeller positioned within a pump impeller housing and comprising a pump impeller magnet;an upper bearing and a lower bearing positioned within the pump impeller housing, wherein the pump impeller is positioned between the upper bearing and the lower bearing;a drive motor movably positioned within a pump drive housing and coupled to a pump drive magnet, wherein the pump impeller housing is coupled to the pump drive housing, wherein varying the position of the drive motor relative to the pump drive housing varies the position of the pump drive magnet relative to the pump impeller magnet.2. The blood pump of claim 1 , wherein the position of the pump drive magnet relative to the pump impeller magnet can be varied such that a magnetic attraction force between the pump impeller magnet and the pump drive magnet is approximately equal and opposite an impeller lift force caused by an actuation of the pump impeller.3. The blood pump of claim 1 , wherein when the magnetic attraction force and the impeller lift force are approximately equal and opposite claim 1 , an axial force on each of the upper bearing and the lower bearing is minimized.4. The blood pump of claim 1 , wherein moving the drive motor relative to the pump ...

Chopper Pump with Mixing Nozzles for a Sewage Wet-Well

Systems and methods for conditioning sewage having entrained solids which clog sewage pumps, are disclosed. Systems include a sewage pump, a chopper pump, and a mixing nozzle connected to the chopper pump. Specifically, the sewage pump is a non-clog centrifugal pump having an inlet for drawing fluid into the pump and an outlet for discharging the fluid into a pipe, while the chopper pump has an inlet for drawing fluid into the pump and an outlet for discharging the fluid into the wet-well. The chopper pump may be positioned either in or adjacent to the wet-well. The mixing nozzle fluidly coupled to the chopper pump discharge, is positioned in the wet-well. Methods include the steps of positioning a chopper pump within the wet-well, drawing in liquid sewage, including the entrained solids, reducing the size of entrained solids, and discharging the sewage and reduced size solids into the wet-well.

Slurry Pump Impeller

An impeller which can be rotated about a rotation axis X-X, the impeller comprising a shroud having opposed inner and outer faces and an outer peripheral edge portion remote from the rotation axis, a plurality of pumping vanes projecting from the inner face of the shroud, a plurality of auxiliary vanes projecting from the outer face of the shroud, one or more of the auxiliary vanes having an inner edge which is closer to the rotation axis and an outer edge which is closer to the peripheral edge portion of the shroud, the auxiliary vanes extending in a direction between the rotation axis towards the outer peripheral edge portion of the shroud, one or more of the auxiliary vanes having a leading side and a trailing side each of which extends from the inner edge to the outer edge with an upper side spaced from the outer face of the shroud, and at least one projection extending from the trailing side of one or more of the said auxiliary vanes, and preferably each auxiliary vane. 1. An impeller configured to rotate about a rotation axis X-X , the impeller comprising a shroud having opposed inner and outer faces and an outer peripheral edge portion remote from the rotation axis X-X , a plurality of pumping vanes projecting from the inner face of the shroud , a plurality of auxiliary vanes projecting from the outer face of the shroud , one or more of the auxiliary vanes having an inner edge positioned closer to the rotation axis X-X and an outer edge positioned closer to the peripheral edge portion of the shroud , one or more of the auxiliary vanes extending in a direction between the rotation axis X-X towards the outer peripheral edge portion of the shroud , one or more of the auxiliary vanes having a leading side and a trailing side that is positioned between the inner edge and the outer edge of the auxiliary vane , with an upper side spaced from the outer face of the shroud , and one or more projections extending from the trailing side of one or more of the said ...

Chopper pump with double-edged cutting bars

An impeller assembly with an impeller and a cutter bar plate is used in a chopper pump system which handles liquid material sometimes entrained with large debris and stringy matter. The debris and matter present clogging hazards, which are reduced by a combination of scissoring between sharpened impeller blades and shearing fingers, and between cutting wings and shearing fingers. To make the cutting feature more aggressive, sharpened edges along two of the scissoring edges of the shearing fingers are utilized. Preferably, the sharpened edges are either the result of machined v-notches on the cutting surface of the shearing fingers or of a casted part having a cupped surface. Generally speaking, the impeller assembly comprises an impeller attached to a rotatable pump shaft and includes a back shroud.

METHOD AND PUMP FOR PUMPING HIGHLY VISCOUS FLUIDS

A pump () for pumping highly viscous fluids is presented that includes a casing (), an inlet (), an outlet () and a closed impeller () rotatably arranged in the casing between the inlet and the outlet and that has a side room () between a shroud () of the impeller and the casing (). In addition, the pump () includes a sealing element () between the impeller () and the casing () each at an inlet side and at an outlet side of the impeller for restricting back flow through the side room () and for allowing the fluid contained in the side room to heat up, and an injection port () leading into the side room () for injecting a fluid into the side room for diminishing disk friction between the shroud () of the impeller and the casing (). 1137851516161564316166643443151616666666. A method for pumping highly viscous fluids includes providing a pump () having a casing () , an inlet () , an outlet () and a closed or semi-open impeller () rotatably arranged in the casing between the inlet and the outlet , pumping highly viscous fluid from the inlet to the outlet of the pump , thereby causing either a back flow () or a recirculation flow ( , ′) of the fluid or both , with the back flow () flowing through a first side room () between a front shroud () of the impeller and the casing () , and with the recirculation ( , ′) flow exchanging fluid between the pumped fluid and the first side room () and/or a second side room (′) between a rear shroud (′) of the impeller and the casing () , wherein disk friction between the front and/or rear shroud ( , ′) of the impeller on the one hand and the casing () on the other hand is diminished by restricting the back flow () and/or recirculation flow ( , ′) and by reducing the viscosity of the fluid contained in the first and/or second side room ( , ′) respectively , either by increasing the temperature of the fluid contained in the respective side room ( , ′) by at least 10° C. above the temperature of the pumped fluid , or by injecting a fluid ...

ROTARY PUMP WITH AXIALLY DISPLACEABLE, CLOSEABLE ROTOR

A centrifugal pump assembly has an electric drive motor () and at least one impeller (′), which is movable in an axial direction (X) between at least two functional positions. In one functional position a flow path through the impeller (′) is essentially closed and in another functional position the flow path through the impeller (′) is opened. The impeller (′) in a first functional position is held by a magnetic force (F) or a spring force and in a second functional position is held by a hydraulic force (F) produced by a delivered fluid. An impeller is provided for the centrifugal pump assembly. 1. A centrifugal pump assembly comprising:an electric drive motor;at least one impeller movable in an axial direction between at least two functional positions, wherein in one functional position a flow path through the impeller is essentially closed and in another functional position the flow path through the impeller is opened, wherein the impeller in a first functional position is held by a magnetic force or a spring force and in a second functional position is held by a hydraulic force produced by a delivered fluid.2. A centrifugal pump assembly according to claim 1 , wherein the impeller in the first functional position is held by a permanent-magnetic force which acts between a permanent magnet rotor connected to the impeller claim 1 , and the surrounding stator of the electric drive motor.3. A centrifugal pump assembly according to claim 2 , wherein the impeller in the first functional position is held by a permanent-magnetic force which results from an axial offset of the permanent magnet rotor relative to the stator of the drive motor.4. A centrifugal pump assembly according to claim 1 , wherein the flow path through the impeller is closed in the first functional position.5. A centrifugal pump assembly according to claim 1 , wherein the flow path through the impeller is closed in the second functional position.6. A centrifugal pump assembly according to claim 1 , ...

CENTRIFUGAL PUMP HAVING AXIALLY MOVEABLE IMPELLER WHEEL FOR CONVEYING DIFFERENT FLOW PATHS

A pump assembly () includes an electric drive motor () and with at least one impeller () which is driven by the motor. The impeller is movable in an axial direction (X) between at least one first and one second position. The impeller in the first axial position is situated in a first flow path through the pump assembly and delivers a fluid through this first flow path. The impeller in the second position is situated in a second flow path through the pump assembly and delivers a fluid through this second flow path. The pump assembly () is configured such that a movement of the impeller (), between the first and the second position at least in one direction, is effected by a hydraulic force which acts on the impeller () and is produced by the delivered fluid. A heating installation is provided with such a pump assembly. 1. A pump assembly comprising:an electric drive motor;at least one impeller driven by the electric drive motor, wherein:the impeller is movable in an axial direction between at least one first axial position and a second axial position;the impeller in the first axial position is situated in a first flow path through the pump assembly and delivers fluid through the first flow path; andthe impeller in the second axial position is situated in a second flow path through the pump assembly and delivers a fluid through the second flow path;the pump assembly is configured such that a movement of the impeller between the first axial position and the second axial position at least in one direction is effected by a hydraulic force which acts on the impeller and is produced by the delivered fluid.2. A pump assembly according to claim 1 , wherein the pump assembly is configured such that the impeller on operation is held in at least one of the positions by at least one hydraulic force produced by the delivered fluid.3. A pump assembly according to claim 1 , wherein the pump assembly is configured such that the impeller on operation is held in at least one of the ...

Finger pump

In this pump, the angle between the imaginary tangent plane to the lip and passing through the axis and an imaginary straight line, perpendicular to the axis and passing through the point furthest from the axis of intersection of the upper surface of a finger with the lateral leading surface of this finger, is between 110 and 140°.

GRINDER PUMP WITH REGENERATIVE IMPELLER

A pump is provided to convey solids-containing wastewater from a basin, such as a sewage basin. The pump has a pump housing that is adapted to be arranged in the basin with an inlet thereof positioned to receive the solids-containing wastewater. An outlet of the pump housing is arranged to eject pressurized wastewater through an outlet of the basin. A pump chamber is arranged in a flow conduit formed in the pump housing between the inlet and the outlet. A regenerative turbine impeller is arranged for rotation in the pump chamber. A grinder is also arranged for rotation in the pump housing between the inlet and the outlet, especially between the inlet and the pump chamber. 1. A pump for conveying solids-containing wastewater from a basin , comprising:a pump housing, adapted to be arranged in the basin, having an inlet to receive the solids-containing wastewater and an outlet to eject pressurized wastewater through an outlet of the basin, with a pump chamber arranged therebetween;a regenerative turbine impeller arranged for rotation in the pump chamber; anda grinder, arranged for rotation in the pump housing between the inlet and the outlet.2. The system of claim 1 , wherein:the grinder is arranged in the pump housing between the inlet and the pump chamber.3. The system of or claim 1 , further comprising:a drive shaft, on which are mounted each of: the regenerative turbine impeller and a cutter of the grinder. The disclosed embodiments of the present invention relate to improvements in a grinder pump, particularly a pump intended for use in a pressurized sewage application. One difference from the known grinder pumps is the use of a regenerative turbine hydraulic instead of a centrifugal or progressing cavity hydraulic.A patent owned by the applicant, U.S. Pat. No. 7,357,341, describes the application of grinder pumps in pressurized wastewater applications. In that patent, a two-stage vortex centrifugal pump is used to increase the output head achieved, compared to a ...

MULTISTAGE CENTRIFUGAL GRINDER PUMP

A multistage centrifugal grinder pump includes a grinder to grind a fluid, a first stage impeller, a second stage impeller, a stationary diffusor arranged between the first stage impeller and the second stage impeller to guide the fluid from the first stage impeller to the second stage impeller and a shaft to rotate the first stage impeller, the second stage impeller and the grinder. The first and second stage impellers in series and connected to the shaft in a torque-proof manner. The diffusor is a semi-open diffusor having a top wall, a radially outer annular side wall, and an open bottom side facing the first stage impeller, the top wall arranged adjacent the second stage impeller, the top wall having a central outlet opening surrounding the shaft, and the open bottom side extending beyond the first stage impeller with respect to a radial direction. 1. A multistage centrifugal grinder pump , comprising:a housing with a pump inlet for a fluid to be conveyed, and a pump outlet for discharging the fluid;a grinder arranged at the pump inlet configured to grind constituents of the fluid;a first stage impeller configured to rotate about an axial direction;a second stage impeller configured to rotate about the axial direction;a stationary diffusor arranged with respect to the axial direction between the first stage impeller and the second stage impeller and configured to guide the fluid from the first stage impeller to the second stage impeller; anda shaft configured to rotate the first stage impeller, the second stage impeller and the grinder,the first stage impeller and the second stage impeller arranged in series and connected to the shaft in a torque-proof manner, andthe diffusor being a semi-open diffusor having a top wall, a radially outer annular side wall, and an open bottom side facing the first stage impeller, the top wall arranged adjacently to the second stage impeller, the top wall having a central outlet opening surrounding the shaft, and the open bottom ...

Cutter System for Pump Suction

A centrifugal pump with a cutter mechanism has a toothed cutter auger affixed to an impeller, and a toothed cutter stator affixed to the volute casing. The auger is a rotor cutter preferably profiled radially to match the inlet geometry of the impeller vanes while extending along its central axis towards the pump suction. The auger is preferably radially concentric to the impeller and includes vanes numbered preferably to match the number of vanes on the impeller. The auger is affixed to the impeller, preferably with a lockscrew threaded into a common pump shaft. The radial profile of the auger essentially makes a continuous vane with the impeller, and prevents solids from hanging on the inlet vane tip or center void while providing a smooth flow transition into the impeller.

SHRED AND SHEAR PUMP

The present invention is a pump used for applications where a solid is present in wastewater and other liquids that requires cutting and reduction in size so as to pass the solid through the inlet to the outlet of the pump. The pump has a pump casing with an inlet and an outlet formed therein. A drive unit rotates a drive shaft extending axially through the pump casing to an impeller and a cutter bar. The pump is further configured with a radial cutter ring assembly positioned adjacent the cutter bar and the inlet providing a shredding cutting action of solids between the rotating cutter bar sliding past a radial cutter ring assembly held stationary, e.g. cutting blades formed in an edge of the cutter bar rotate across an internal surface of the radial cutter ring assembly. The pump also has an axial cutter ring assembly with one or more blades forming openings adapted for the passage of solids from the inlet to the outlet to provide a shearing cutting action of solids by a rotation of an upper surface of the cutter bar sliding past an axial cutting surface of the blades of the axial cutter ring assembly. The shred and shear pump may be configured with a plurality of slots on the internal surface of the radial cutter ring assembly (101) to hold woven fibrous material for the shredding cutting action. The pump also features improved optimized flow, cutting and reducing solids in the form of woven fibrous materials, and adjustability of the cutter housing for precision and wear adjustment. 1. A pump , comprising:a pump casing having an inlet and an outlet formed therein;a drive unit with a drive shaft extending axially through said pump casing;an impeller connected to said drive shaft and positioned within said pump casing, said impeller having a plurality of vanes configured to direct liquid radially towards said outlet;a radial cutter ring assembly positioned adjacent said inlet of said pump casing and said impeller, said radial cutter ring assembly configured with ...

Cutting Blade Assembly

A cutting blade assembly establishes a bidirectional and/or multifaceted scissor-type cutting action to efficiently and effectively process various types of debris encountered by the cutting blade assembly. The assembly includes a cutting plate and a cutting hub configured for relative rotation. A cutting slot is formed in the cutting plate and intersects the axial face to define a cutting edge at the intersection of the cutting slot and the axial face. The cutting hub has a cutting arm positioned adjacent to the axial face. When the cutting plate and the cutting hub undergo relative rotation, the cutting arm passes adjacent to the cutting edge to perform a scissor-type cutting action.

Cutting Assembly for a Chopper Pump

Embodiments of the invention provide a cutting assembly for a chopper pump. The cutting assembly includes a cutting insert having a cutting blade extending radially therefrom, and an impeller having a central hub, a plurality of vanes, and an insert surface. The insert surface defines an axial recess that is dimensioned to receive the cutting insert therein. The cutting assembly further includes a cutting plate having a plate hub with a cutting extension protruding radially inward therefrom. Rotation of the impeller rotates the cutting blade past the cutting extension. 1. A cutting assembly for a chopper pump , the cutting assembly comprising:a cutting insert including a cutting, blade extending radially therefrom;an impeller including a central hub, a plurality of vanes, and an insert surface, wherein the insert surface defines an axial recess that is dimensioned to receive the cutting insert therein; anda cutting plate including a plate hub having a cutting extension protruding radially inward therefrom,wherein rotation of the impeller rotates the cutting blade past the cutting extension.2. The cutting assembly of claim 1 , wherein the cutting insert includes a plurality of cutting blades extending radially from an insert central hub.3. The cutting assembly of claim 2 , wherein the plurality of cutting blades define a substantially curved shape.4. The cutting assembly of claim 2 , wherein the plurality of cutting blades each include a leading edge having a plurality of serrated teethed arranged therealong.5. The cutting assembly of claim 1 , wherein the insert surface includes a plurality of insert apertures recessed therein and arranged circumferentially around the central hub claim 1 , and wherein the plurality of insert apertures are arranged to align with a corresponding plurality of mourning apertures on the cutting insert.6. The cutting assembly of claim 5 , wherein the plurality of insert apertures and the plurality of mounting apertures are configured to ...

Systems and methods for calibrating a tool

A calibration system includes a housing, a drive shaft within the housing, a load application apparatus operatively connected to the drive shaft to apply a force to the drive shaft, and a plurality of housing transducers operatively connected to the drive shaft to measure at least one of an in-line torque or a prevailing torque of the drive shaft. A method for calibrating a tool includes generating at least one of a pass or fail output from a processing unit based on whether a variance between a prevailing torque from a tool transducer and a prevailing torque from an external tool is within a predetermined variance threshold. A method for measuring prevailing torque in a tool includes determining whether a prevailing torque value is within a predetermined prevailing torque range and adjusting a shut-off threshold torque based on the prevailing torque.

BEARING HOUSING

There is disclosed a gas turbine engine including a bearing housing having at least two bearings axially spaced from one another relative to a central axis. The bearing housing includes an axially deformable bellows between the bearings configured to permit axial relative movement of the bearings. A method of operating a bearing assembly is also disclosed. 1. A bearing assembly for a gas turbine engine comprising at least two bearings being axially spaced from one another relative to a central axis and configured to rotatably support a rotating component of the gas turbine engine , and a bearing housing configured to be secured to a casing of the gas turbine engine , the bearing housing including a case extending at least axially relative to the central axis and extending circumferentially around the central axis , bearing supports at axially spaced apart locations of the case , the bearing supports radially supporting the at least two bearings , wherein the case includes an axially deformable bellows between the bearing supports configured to permit axial relative movement of the bearings.2. The bearing assembly of claim 1 , wherein the bellows has a corrugated section defined by axially distributed crests and valleys circumferentially extending around the central axis.3. The bearing assembly of claim 1 , wherein the bellows includes a plurality of axially distributed annular walls interconnected to one another claim 1 , each of the plurality of axially distributed annular walls spaced apart from each other by gaps claim 1 , the gaps variable in size.4. The bearing assembly of claim 1 , wherein the case includes two case sections each extending from a respective one of the bearing supports toward the other of the bearing supports claim 1 , the bellows located between the two case sections such that the two case sections are connected to one another via the bellows.5. The bearing assembly of claim 4 , wherein the bellows is located radially between the two case ...

Vortex Pump

A centrifugal pump for delivering a medium comprising solid admixtures includes a blade-free space arranged in front of an impeller. The centrifugal pump has a suction-side arrangement that permits variable sizing of the blade-free space. The suction-side arrangement permits the efficiency of the centrifugal pump to be increased while avoiding blockages. 110.-. (canceled)11. A centrifugal pump for conveying a medium comprising solid additives , comprising:a pump casing having a casing space;an impeller arranged in the casing space with a blade-free space upstream of the impeller; anda suction-side arrangement configured to change a size of the blade-free space.12. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement is ring-shaped.13. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement has an elastic wall configured to change the size of the blade-free space by expansion or contraction of the elastic wall.14. The centrifugal pump as claimed in claim 13 , whereinthe suction-side arrangement includes a hollow body having a port configured receive and discharge a filling fluid.15. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement includes an axially movable element configure to change the size of the blade-free space by axial movement.16. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement includes a displacement casing part configured to change the size of the blade-free space by axial movement.17. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement forms a suction mouth of the pump.18. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement includes elements displaceable relative to the impeller to alter a spacing from the elements to the impeller.19. The centrifugal pump as claimed in claim 11 , whereinthe suction-side arrangement is arranged on a suction-side of the pump casing.20. The ...

HYBRID RADIAL AXIAL CUTTER

One or more techniques and/or systems are disclosed for a cutter/grinder system that can be engaged with a pump. The cutter/grinder system can comprise an axial cutting operation and a radial cutting operation, comprising a rotary cutter that has both radial and axial cutting edges. The rotating cutter can be operably engaged with a stationary cutter apparatus, non-movably engaged with a pump, where the stationary cutter apparatus comprises both an axial cutting operation and a radial cutting operation, comprising both radial and axial cutting edges. The system can facilitate reduction of a size of solids that may be entrained in a target fluid. 1. A cutter system for a pump , comprising: a first set of plate intake ports disposed around a perimeter portion of the stationary cutter plate; and', 'a second set of plate intake ports disposed in an interior portion of the stationary cutter plate;, 'a stationary cutter plate configured to operably couple with an intake area of a pump in a stationary disposition, the stationary cutter plate comprising a plurality of intake ports, the plurality of intake ports comprisinga stationary cutter wall fixedly engaged with the stationary cutter plate, and projecting in a substantially transverse direction from the perimeter of an intake side of the stationary cutter plate, the stationary cutter wall comprising a wall intake port disposed in substantial alignment with the respective first set of plate intake ports, one or more of the respective wall intake ports comprising a wall cutting edge; an axial cutting edge; and', 'a radial cutting edge., 'a rotating cutter configured to operably couple with a rotating shaft of the pump, and comprising a plurality of cutting arms projecting radially from a central hub portion of the rotating cutter, respective cutting arms comprising2. The system of claim 1 , the second set of plate intake ports respectively comprising a stationary plate cutting edge.3. The system of claim 1 , one or more ...

CHOPPER PUMP WITH DOUBLE-EDGED CUTTING BARS

An impeller assembly with an impeller and a cutter bar plate is used in a chopper pump system which handles liquid material sometimes entrained with large debris and stringy matter. The debris and matter present clogging hazards, which are reduced by a combination of scissoring between sharpened impeller blades and shearing fingers, and between cutting wings and shearing fingers. To make the cutting feature more aggressive, sharpened edges along two of the scissoring edges of the shearing fingers are utilized. Preferably, the sharpened edges are either the result of machined v-notches on the cutting surface of the shearing fingers or of a casted part having a cupped surface. Generally speaking, the impeller assembly comprises an impeller attached to a rotatable pump shaft and includes a back shroud. 1. An impeller assembly for a chopper pump comprising:an impeller having a back shroud and cutting blades sharpened on a first edge, the cutting blades extending from and fixed on a first surface of the back shroud;a cutter bar plate positioned adjacent to and upstream of the impeller, the cutter bar plate comprising at least one shearing finger having first and second contact surfaces and extending inward from a periphery, the first contact surface of the at least one shearing finger having a first sharpened edge and the second contact surface having a second sharpened edge, such that the first sharpened edge creates a shearing operation in combination with the sharpened edge of the cutting blades of the impeller during use; andan external tool positioned adjacent to and upstream of the cutter bar plate, the external tool comprising at least one cutting wing having a shearing surface that creates a shearing operation in combination with the second sharpened edge along the second contact surface of the shearing finger during use;wherein the shearing finger has a cupped surface between the first and second contact surfaces to create the first and second sharpened edges.2. ...

AGITATOR FOR SUBMERSIBLE PUMPS

An agitator includes a central shaft, a radially spaced array of vanes and a shroud encircling the central shaft so as to intersect the vanes perpendicular to the vanes' depth and along their length, thus defining an inner passageway between the shroud and the central shaft and an outer passageway between the vanes, radially extending outwardly of the shroud. 1. An agitator comprising:a central shaft extending along an axis of symmetry and rotation,a radially spaced array of vanes, radially spaced around the central shaft,each of the vanes of the radially spaced array of vanes having a length substantially parallel to the axis and a depth substantially perpendicular to the axis, each of the vanes extending radially outwardly of the axis,a shroud encircling the central shaft so as to intersect the vanes perpendicular to their depth and along their length so as to define inner passageways between the shroud and the central shaft and outer passageways between the vanes radially outwardly of the shroud.2. The agitator of wherein each vane in the array of vanes has substantially the same depth claim 1 , and wherein the shroud intersects the vanes at substantially halfway of the depth of the vanes.3. The agitator of further comprising a radially spaced array of mixer arms extending radially outwardly of the central shaft and mounted to the central shaft spaced apart from the radially spaced array of vanes along the central axis.4. The agitator of wherein the array of mixer arms are radially offset from the array of vanes.5. The agitator of wherein the vanes are helical relative to the central axis.6. The agitator of wherein the agitator further comprises a diameter measured by a radially outer edge of each vane of the array of vanes and wherein the shroud has a thickness in the range of substantially 7% of the diameter.7. The agitator of wherein the central shaft includes a coupling end and the shroud includes a top end proximate the coupling end of the central shaft and ...

Variable delivery pump for molten metal

A pump for use in a bath of reactive molten metal such as zinc has a graphite rotor, driven at constant speed, and capable of pumping molten metal at selective rates from the bath. The pump includes an internal delivery flow path and protected drive shaft, so that the liquid metal of the bath is not turbulated by the rotating shaft, and the temperature of the metal within the pump, during semi-quiescent periods is maintained substantially constant. The pump has a robust structure and yet can handle rates as low as 10 to 15 pounds per minute, in contrast to usual types of pumps that require pumping about 80 pounds per minute, and being speed controlled, are less accurate in their delivery rates. An adjustable control for regulating flow rate during operation also is provided.

Centrifugal pump runner

FIELD: engines and pumps. SUBSTANCE: invention refers to the pump engineering and may be used during construction of submerged pumps for the lifting of liquids with mechanical impurities from wells. The centrifugal pump runner contains a cover and an impeller with blades (1, 2, 3, 4) secured between them with the formation of alternating flow-through interblade channels (13, 14) and non-flow-through interblade channels (15, 16). In the non-flow-through channels (15, 16), baffles (5, 6, 7, 8) are located, each of which is connected to the lateral surfaces of the pair of neighbor blades (2, 3 and 1, 4). In each of the non-flow-through channels (15, 16), two solid baffles, internal baffles (5, 7) and external baffles (6, 8), are located relatively to the impeller hub. Each of the baffles (5, 6, 7, 8) is performed solid and connected to the pair of neighbor blades (2, 3 and 1, 4) by its edges with the formation of the plugged from two sides non-flow-through interblade channel (15, 16), respectively. EFFECT: invention is directed to prevention of rapid wear, unbalancing, and blocking of the runner with mechanical impurities, reduction and stabilization of power supply by a drive motor within the limits of its available capacity, and provision of the possibility for successful operation of marginal petroleum and other wells. 6 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 610 803 C1 (51) МПК F04D 29/22 (2006.01) F04D 7/04 (2006.01) F04D 13/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015155854, 25.12.2015 (24) Дата начала отсчета срока действия патента: 25.12.2015 (72) Автор(ы): Языков Андрей Юрьевич (RU) (73) Патентообладатель(и): Языков Андрей Юрьевич (RU) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: RU 2116518 C1, 27.07.1998. SU Приоритет(ы): (22) Дата подачи заявки: 25.12.2015 879029 A, 07.11.1981. SU 1786295 A, 07.01.1993. FR 2837880 A1, 03 ...

Self-priming type centrifugal pump

본 발명은 점성이 높고 기포를 대량으로 함유하는 진흙 형태의 물질이나 고형의 이물질 등이 혼입되어 있는 액체라도 흡상하여 수송이 가능할 뿐만 아니라 펌프의 기동, 운전, 정지의 전체 행정에 걸쳐서 주 펌프측과 진공 장치측 사이에서의 액체의 침입을 방지하는 것 등에 의해 완전 자동 운전이 가능하며, 설비 및 관리 비용이 극히 경제적인 자흡식 원심 펌프 장치를 얻는 것을 목적으로 한다. According to the present invention, even a liquid having high viscosity and containing a large amount of bubbles and mixed with solid foreign matters can be sucked and transported, and the main pump side and the whole of the start, operation and stop of the pump can be transported. It is an object of the present invention to obtain a self-sufficient centrifugal pump device which is fully automatic in operation by preventing the ingress of liquid between the vacuum apparatus and the like, and which is extremely economical in equipment and maintenance. 그 구성은 송액용 주 펌프와, 기액 원심 분리용 부 펌프와, 배기용 진공 장치를 구비하고, 상기 주 펌프의 임펠러 중앙부 근방은 상기 부 펌프의 토출 능력에 비해 교축된 통과 면적을 지니는 통로에 의해 상기 부 펌프의 흡입구에 연통되고, 상기 부 펌프의 토출구는 환류로에 의해 상기 주 펌프의 흡입구에 연통되고, 상기 부 펌프의 임펠러 중앙부 근방은 배기 통로에 의해 상기 진공 장치에 접속되고, 상기 자흡식 원심 펌프 장치의 원동기 입력의 투입 시점으로부터 지연되어 개방 작동하는 완속 작동 밸브와, 상기 자흡식 원심 펌프 장치의 원동기 입력의 차단 시점에 바로 폐쇄 작동하는 급속 작동 밸브가 상기 배기 통로내에 직렬로 개재 장착된 것을 주된 특징으로 한다. The constitution includes a main pump for liquid supply, a sub pump for gas-liquid centrifugation, and a vacuum device for exhaust, and the passage near the center of the impeller of the main pump has a passage area throttled compared to the discharge capacity of the sub pump. A suction port of the sub pump is connected to a suction port of the main pump by a reflux path, and a vicinity of an impeller central part of the sub pump is connected to the vacuum device by an exhaust passage, A slow-actuating valve which is delayed open from the input time of the prime mover input of the centrifugal pump device and a quick acting valve which is immediately closed at the time of interruption of the prime mover input of the self-priming centrifugal pump device is interposed in series in the exhaust passage; It is a main feature.

Centrifugal pump with configured spiral chamber

FIELD: mechanical engineering; centrifugal pumps. SUBSTANCE: replaceable insert 10 of centrifugal pump housing designed for pumping of suspensions under heavy operating conditions and containing abrasive particles employs configured spiral chamber 60 asymmetrical in axial cross section along circumference of housing insert 10 from cut water area to neck area. Asymmetry is relative to plane which divides by half housing 10 and area of spiral chamber 60 in radial direction. Insert 10 can be used together with impeller 20 furnished with displacement blades 50 to remove suspension from sealing surface 62. EFFECT: improved efficiency of pumps and stabilization of flow. 19 cl, 16 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 296 243 (13) C2 (51) ÌÏÊ F04D 7/04 (2006.01) F04D 29/44 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005124294/06, 17.12.2003 (30) Êîíâåíöèîííûé ïðèîðèòåò: 31.12.2002 (ïï.1-19) US 10/335.584 (73) Ïàòåíòîîáëàäàòåëü(è): ÓÝÉÐ ÑËÝÐÈ ÃÐÓÏ, ÈÍÊ. (US) (43) Äàòà ïóáëèêàöèè çà âêè: 27.01.2006 R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.12.2003 (72) Àâòîð(û): ÀÁÀÐÊÀ ÌÅËÎ Ðèêàðäî Àóãóñòî (CL), ÁÓÐÆÓÀ Ðîíàëä Ä. (US), ÐÓÄÍÅ Àëåêñàíäð Ñ. (US) (45) Îïóáëèêîâàíî: 27.03.2007 Áþë. ¹ 9 2 2 9 6 2 4 3 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 5127800 À, 07.07.1992. US 5127800 À, 07.07.1992. WO 96/27085 A1, 06.09.1996. US 4917571 À, 17.04.1990. US 4264273 À, 28.04.1981. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 01.08.2005 2 2 9 6 2 4 3 R U (87) Ïóáëèêàöè PCT: WO 2004/059173 (15.07.2004) C 2 C 2 (86) Çà âêà PCT: AU 2003/001682 (17.12.2003) Àäðåñ äë ïåðåïèñêè: 103735, Ìîñêâà, óë. Èëüèíêà, 5/2, ÎÎÎ "Ñîþçïàòåíò", ïàò.ïîâ. Ë.Ñ.Êèøêèíîé (54) ÖÅÍÒÐÎÁÅÆÍÛÉ ÍÀÑÎÑ Ñ ÊÎÍÔÈÃÓÐÈÐÎÂÀÍÍÎÉ ÑÏÈÐÀËÜÍÎÉ ÊÀÌÅÐÎÉ (57) Ðåôåðàò: Ñìåííûé âêëàäûø 10 êîðïóñà öåíòðîáåæíîãî íàñîñà äë ïåðåêà÷èâàíè ñóñïåíçèé, îáóñëàâëèâàþùèõ ò æåëûå óñëîâè ðàáîòû è ñîäåðæàùèõ àáðàçèâíûå ...

水中ポンプ

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Pump for pumping liquid, as well as impeller assembly

FIELD: engines and pumps. SUBSTANCE: group of inventions relates to pumps for pumping contaminated liquid, in particular sewage with solid inclusions. Pump comprises impeller (4) and drive shaft assembly extending in axial direction. Far end of drive shaft assembly is located in central recess of impeller (4). Drive shaft assembly comprises drive shaft (14) and connecting pipe. Connection pipe comprises sleeve (16), which is in telescopic interaction with shaft (14). Impeller (4) during operation of pump (1) moves in axial direction relative to said sleeve (16) between initial far and near positions. Impeller (4) is offset in the direction of the initial far position by means of a spring element located between bushing (16) and impeller (4). Connection pipe comprises hollow adjusting screw that is in threaded engagement with inner side of sleeve (16) and is configured to limit the maximum degree of telescopic overlap between sleeve (16) and shaft (14). Impeller screw passes through adjusting screw and enters threaded engagement with shaft (14) to press adjusting screw (31) to shaft (14). EFFECT: invention is aimed at increasing service life. 8 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 733 155 C2 (51) МПК F04D 7/04 (2006.01) F04D 29/20 (2006.01) F04D 29/042 (2006.01) F04D 13/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 7/045 (2020.05); F04D 29/20 (2020.05); F04D 29/2288 (2020.05); F04D 29/042 (2020.05); F04D 13/086 (2020.05) (21)(22) Заявка: 2018144302, 10.05.2017 10.05.2017 (73) Патентообладатель(и): КСИЛЕМ АйПи МЭНЕДЖМЕНТ С.А Р.Л. (LU) Дата регистрации: 29.09.2020 17.05.2016 EP 16169846.9 (43) Дата публикации заявки: 17.06.2020 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: WO 2015022601 A1, 19.02.2015. WO 2008039143 A1, 03.04.2008. WO 2013050956 A3, 11.04.2013. EA 12078 B1, 28.08.2009. RU 2027073 C1, 20.01.1995. (45) Опубликовано: 29.09.2020 Бюл. № 28 (86) Заявка PCT ...

Impeller for centrifugal pump, centrifugal pump, as well as its use

FIELD: machine building.SUBSTANCE: present invention relates to impeller (40) for centrifugal pump, centrifugal pump and its use. Present invention relates specifically to the new design of closed impeller (40) for a centrifugal pump.EFFECT: centrifugal pump incorporating the impeller of the present invention is suitable for pumping both pure liquids and liquids containing a solid phase, such as fibrous suspensions of pulp and paper pulp, or in the production of wood-based panels.11 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 688 066 C2 (51) МПК F04D 7/04 (2006.01) F04D 29/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 7/045 (2018.08); F04D 29/2216 (2018.08) (21)(22) Заявка: 2015112285, 03.04.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: 17.05.2019 (73) Патентообладатель(и): ЗУЛЬЦЕР МЭНЭДЖМЕНТ АГ (CH) (56) Список документов, цитированных в отчете о поиске: US 20090226317 A1, 10.09.2009. 23.04.2014 EP 14165689.2 (43) Дата публикации заявки: 20.10.2016 Бюл. № 29 (45) Опубликовано: 17.05.2019 Бюл. № 14 R U (54) РАБОЧЕЕ КОЛЕСО ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА, ЦЕНТРОБЕЖНЫЙ НАСОС, А ТАКЖЕ ЕГО ИСПОЛЬЗОВАНИЕ (57) Реферат: Настоящее изобретение относится к рабочему настоящему изобретению, пригоден для колесу (40) для центробежного насоса, перекачивания как чистых жидкостей, так и центробежному насосу и его применению. жидкостей, содержащих твердую фазу, таких как Настоящее изобретение в особенности относится волокнистые суспензии пульпы и бумажной к новой конструкции закрытого рабочего колеса массы, либо при производстве древесных плит. 4 (40) для центробежного насоса. Центробежный н. и 7 з.п. ф-лы, 7 ил. насос, в котором применяется рабочее колесо по Стр.: 1 C 2 C 2 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" Лопастные насаосы. Под редакцией Зимницкого В. А. М.: Издательство "Машиностроение", 1986, глава 2, с.46- ...

Centrifugal pump runner

FIELD: engines and pumps. SUBSTANCE: invention refers to the pump engineering and may be used during construction of submerged pumps for the lifting of liquids with mechanical impurities from wells. The centrifugal pump runner contains a cover and an impeller with curvilinear blades (1, 2, 3, 4) installed with the formation of alternating flow-through interblade channels (13, 14) and non-flow-through interblade channels (15, 16). In each of the non-flow-through interblade channels (15, 16), two baffles are secured, (5, 6) and (7, 8), of which (5, 7) are internal, and (6, 8) are external, i.e. located on the different distances relatively to the center of the impeller hub. The internal baffle (5) is performed solid and connected to the pair of neighbor baffles (2, 3) by its edges; the internal baffle (7) is performed solid and connected to the pair of neighbor baffles (1, 4) by its edges. The external baffle (6) is connected to one blade (2) of the neighbor ones (2, 3) forming the peripheral hole (17) with another blade (3) on one side on the non-flow-through interblade channel (15). The external baffle (8) is connected to one blade (4) of the neighbor ones (1, 4) forming the peripheral hole (18) with another blade (1) on one side on the non-flow-through interblade channel (16). EFFECT: invention is directed to prevention of rapid wear, unbalancing, and blocking of the runner with mechanical impurities, reduction and stabilization of power supply by a drive motor within the limits of its available capacity, and provision of the possibility for successful operation of marginal petroleum and other wells. 6 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 610 802 C1 (51) МПК F04D 29/22 (2006.01) F04D 7/04 (2006.01) F04D 13/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015155853, 25.12.2015 (24) Дата начала отсчета срока действия патента: 25.12.2015 (72) Автор(ы): Языков ...

The method of the wearing plate and the distance between impeller of centrifugal pump and adjusting centrifugal pump

一种用于提升清水或带有悬浮固体的水的离心泵(1)，该离心泵包括：中空本体(2)，该中空本体限定中心轴线(L)并且具有前开口(3)和带有输送端口(5)的蜗壳(4)；叶轮(8)，该叶轮被容纳在本体(2)中并且被设计成连接到马达，并且该叶轮具有叶片(9)，叶片的顶端(10)在环形周缘区域(11)处基本上共面；还设置有用于封闭前开口(3)的盖(12)，该盖包括法兰(13)，法兰具有中央部分(14)和基本上径向的周缘部分(16)；基本上环形的耐磨板(19)，该耐磨板刚性地连接到法兰(13)并且定位成与叶轮(8)的环形周缘区域(11)相距预定的轴向距离(d 1 )；以及调节装置(24)，该调节装置用于耐磨板(19)的轴向距离(d 1 )的受控的调节。调节装置(24)安装到法兰(13)上，并且能够从外部接近该调节装置，并且该调节装置设计成既能校准耐磨板(19)的轴向位置又能将耐磨板锁定在经校准的位置。一种调节在离心泵(1)中的耐磨板(19)与叶轮(8)之间的轴向距离(d 1 )的方法。

Pump with axial balancer

FIELD: motors and pumps. SUBSTANCE: group of the inventions relates to balancing of turbopumps for space motors. The pump contains stator (112) and rotor containing an impeller (111), through which a flow duct (114) for fluid medium passes. This impeller (111) comprises the device for axial balancing containing balancing camera (118) and duct (120), formed between the impeller (111) and the stator (112), which ensures the drain of fluid medium from the flow duct (114) into the balancing camera (118). The pressure of fluid medium in the balancing camera (118) compensates the efforts exerted by the fluid medium on another part of the rotor, thus ensuring axial balancing of the rotor. The duct (120) comprises a front nozzle (140) and a back nozzle (160), and also intermediate ring-type camera (150), formed between the walls (151, 152; 161, 162) of the impeller (111) and the stator (112). The camera (150) is located downstream the front nozzle (140) and upstream the back nozzle (160) and is extended in a meridional direction, and the normal to the impeller cylindrical wall (111), generatrix of the nozzle (140, 160), is parallel to the normal to cylindrical wall (161, 162) of the stator (112), generatrix of the nozzle, and is directed to the opposite side. EFFECT: group of the inventions is aimed at creation of high performance compact safe pump. 14 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F04D 29/041 (13) 2 539 954 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011130704/06, 08.01.2010 (24) Дата начала отсчета срока действия патента: 08.01.2010 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БУФФЛЕР Себастьен (FR), ЖЮЭЛЬ Николя (FR), ФАЙОЛЛЬ Патрис (FR), ЛАФФИТ Стефан (FR) (43) Дата публикации заявки: 20.02.2013 Бюл. № 5 R U (73) Патентообладатель(и): СНЕКМА (FR) 09.01.2009 FR 0950107 (45) Опубликовано: 27.01.2015 Бюл. № 3 2095607 C1, 10.11.1997. SU 268906 A, 01.07.1971. CH ...

Pump and impeller assemblies for pumping liquids

제 1 양태에서, 본 발명은 액체를 펌핑하기 위한 펌프에 관한 것으로, 이 펌프는 임펠러(4) 및 축방향 연장 구동축 어셈블리(5)를 포함하고, 구동축 어셈블리(5)의 원위 단부는 임펠러(4)의 중심 오목부(8)에 수용되고, 구동축 어셈블리(5)는 구동축(14) 및 커넥터(15)를 포함하고, 커넥터(15)는 구동축(14)과 신축자재하게 결합하는 슬리브를 포함하고, 펌프(1)의 작동 동안에 임펠러(4)는 원위 안착 위치와 근위 위치 사이에서 슬리브(16)에 대해 축방향으로 변위 가능하며, 임펠러(4)는 슬리브(16)와 임펠러(4) 사이에 배치되는 스프링 부재(25)에 의해 원위 안착 위치 쪽으로 편향되고, 커넥터(15)는, 슬리브(16)의 내면과 나사 결합되는 중공 조절 스크류(30)를 포함하고, 이 중공 조절 스크류는 슬리브(16)와 구동축(14) 사이의 최대 신축자재 겹침 정도를 제한하도록 구성되어 있고, 임펠러 스크류(33)가 조절 스크류(30)를 구동축(14) 쪽으로 가압하기 위해 조절 스크류(30)를 통과하여 구동축(14)과 나사 결합된다. 제 2 양태에서, 본 발명은 그러한 펌프를 위한 임펠러 어셈블리에 관한 것이다. In a first aspect, the present invention relates to a pump for pumping liquid, the pump comprising an impeller (4) and an axially extending drive shaft assembly (5), the distal end of the drive shaft assembly (5) being an impeller (4) ), the drive shaft assembly (5) comprising a drive shaft (14) and a connector (15), the connector (15) comprising a sleeve that telescopically engages the drive shaft (14); , during operation of the pump 1 , the impeller 4 is axially displaceable relative to the sleeve 16 between a distal seating position and a proximal position, the impeller 4 being disposed between the sleeve 16 and the impeller 4 . Deflected toward the distal seating position by a spring member 25 disposed thereon, the connector 15 includes a hollow adjustment screw 30 screwed into an inner surface of the sleeve 16 , the hollow adjustment screw comprising the sleeve 16 . ) and the drive shaft 14 are configured to limit the maximum degree of overlap of the telescopic material, and the impeller screw 33 passes through the adjustment screw 30 to press the adjustment screw 30 toward the drive shaft 14 to the drive shaft ( 14) and screwed together. In a second aspect, the present invention relates to an impeller assembly for such a pump.

Centrifugal pump stage, centrifugal pump and use of pump stage

FIELD: motors and pumps. SUBSTANCE: group of inventions relates to a centrifugal pump stage, in particular a submersible type pump. Pump stage for a centrifugal pump comprises impeller unit (10) having axial hub (11), diffuser unit (20) and cover (30). Impeller unit (10) is supported floating inside diffuser unit (20). Shim ring (40) is associated with impeller unit (10) and is sustained in sliding support on washer (27) housed in a fixed position in correspondent seat (26) of diffuser unit (20) of an adjacent pump stage. Impeller unit (10) is in sliding contact with cover (30) along annular portion (13a). In the start-up or shut-off phase, a slight play is provided between portion (13a) of impeller unit (10) and cover (30), such that the hydraulic leakage losses are minimised without contact. EFFECT: inventions are aimed at providing a high level of performance and prolonged wear-resistance under any operating conditions. 9 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 662 848 C2 (51) МПК F04D 1/06 (2006.01) F04D 13/08 (2006.01) F04D 29/042 (2006.01) F04D 29/16 (2006.01) F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 1/06 (2018.01); F04D 13/086 (2018.01); F04D 29/042 (2018.01); F04D 29/167 (2018.01); F04D 7/04 (2018.01) (21)(22) Заявка: 2016141422, 24.03.2014 24.03.2014 (73) Патентообладатель(и): ПЕДРОЛЛО С.П.А. (IT) Дата регистрации: 31.07.2018 Приоритет(ы): (22) Дата подачи заявки: 24.03.2014 6068444 A1, 30.05.2000. DE 29722288 U1, 29.01.1998. RU 2208709 С2, 20.07.2003. (43) Дата публикации заявки: 24.04.2018 Бюл. № 12 (45) Опубликовано: 31.07.2018 Бюл. № 22 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.10.2016 2 6 6 2 8 4 8 (56) Список документов, цитированных в отчете о поиске: US 3265001 A1, 09.08.1966. US R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): ПЕДРОЛЛО Сильвано (IT) IB 2014/060106 (24.03.2014) C 2 C 2 (86) Заявка PCT: (87) ...

Centrifugal pump stage, centrifugal pump and pump stage application

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 141 422 A (51) МПК F04D 1/06 (2006.01) F04D 13/08 (2006.01) F04D 29/042 (2006.01) F04D 29/16 (2006.01) F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016141422, 24.03.2014 (71) Заявитель(и): ПЕДРОЛЛО С.П.А. (IT) Приоритет(ы): (22) Дата подачи заявки: 24.03.2014 (43) Дата публикации заявки: 24.04.2018 Бюл. № 12 (72) Автор(ы): ПЕДРОЛЛО Сильвано (IT) R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.10.2016 (86) Заявка PCT: IB 2014/060106 (24.03.2014) WO 2015/145196 (01.10.2015) R U (54) Ступень центробежного насоса, центробежный насос и применение ступени насоса (57) Формула изобретения 1. Ступень насоса для центробежного насоса, содержащая узел (10) рабочего колеса, снабженный осевой ступицей (11), выполненной с возможностью установки на валу насоса центробежного насоса, коаксиально с ним; диффузорный узел (20), который продолжается на первой поверхности указанного узла (10) рабочего колеса; аспирационную крышку (30), связанную с указанным диффузорным узлом (20), и продолжающуюся на второй поверхности указанного узла (10) рабочего колеса, при этом указанный узел (10) рабочего колеса является плавающим внутри указанного диффузорного узла (20); отличающаяся тем, что указанный узел (10) рабочего колеса связан с регулировочным кольцом (40), жестко установленным на указанной осевой ступице (11), и поддерживаемым в опоре скольжения на шайбе (27), расположенной в неподвижном положении в соответствующем посадочном месте (26) диффузорного узла (20) смежной ступени насоса; при этом указанный узел (10) рабочего колеса находится в скользящем контакте с указанной крышкой (30) вдоль кольцевого участка (13а), продолжающегося на указанной второй поверхности. 2. Ступень насоса по п.1, отличающаяся тем, что на этапе запуска или остановки, между указанным кольцевым участком (13а) указанного узла (10) рабочего колеса и Стр.: 1 A 2 0 1 6 1 4 1 4 2 2 A ...

CENTRIFUGAL PUMP AND METHOD FOR ADJUSTING THE DISTANCE OF THE WEAR PLATE FROM THE CENTRIFUGAL PUMP IMPELLER

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 125 336 A (51) МПК F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019125336, 03.03.2017 (71) Заявитель(и): ВАРИСКО С.Р.Л. (IT) Приоритет(ы): (22) Дата подачи заявки: 03.03.2017 (43) Дата публикации заявки: 05.04.2021 Бюл. № 10 (72) Автор(ы): ТИТОМАНЛИО, Антонио (IT) R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2019 (86) Заявка PCT: IB 2017/051259 (03.03.2017) WO 2018/158617 (07.09.2018) R U (54) ЦЕНТРОБЕЖНЫЙ НАСОС И СПОСОБ РЕГУЛИРОВКИ РАССТОЯНИЯ ИЗНОСОСТОЙКОЙ ПЛАСТИНЫ ОТ РАБОЧЕГО КОЛЕСА ЦЕНТРОБЕЖНОГО НАСОСА (57) Формула изобретения 1. Центробежный насос (1) для подъема чистой воды и воды со взвешенными частицами, содержащий: - полый корпус (2), определяющий центральную ось (L), причем указанный корпус (2) имеет переднее отверстие (3) и улитку (4) с радиальным впускным каналом (5); - рабочее колесо (8), размещенное в указанном корпусе (2) и выполненное с возможностью соединения с двигателем, причем указанное рабочее колесо (8) имеет лопасти, (9) верхние кромки (10) которых по существу расположены в одной плоскости с закругленной периферийной областью (11); - крышку (12) для закрытия указанного переднего отверстия (3), причем указанная крышка (12) содержит фланец (13) с центральной частью (14), которая имеет по существу осевой отсасывающий канал (15) и по существу радиальную периферийную часть (16); - по существу кольцевую износостойкую пластину (19), составляющую одно целое с указанным фланцем (13) и расположенную на заданном осевом расстоянии (d1) от указанной кольцевой периферической области (11) указанного рабочего колеса (8); - средства (24) регулировки для контролируемой регулировки указанного осевого расстояния (d1) указанной износостойкой пластины (19), отличающийся тем, что указанные средства (24) регулировки установлены на указанном фланце (13) и выполнены доступными снаружи, причем указанные средства (24) ...

Self-priming type centrifugal pump

本发明提供了一种自吸式真空泵，这种泵能够抽吸或者泵送包括泥浆物质的高粘度液体，所述泥浆物质包括大量气泡和固体异物，该泵能够在包括起动、运转和停止等过程的所有阶段，防止来自主泵装置一侧的液体流进真空装置以及来自真空装置的液体流进主泵装置，该泵能够很好地自动工作并且在装配和维护费用方面非常经济。本发明的自吸式离心泵包括：一个用于泵送液体的主泵装置，一个用于借助离心力分离气体和液体的辅泵装置，一个排气真空装置。主泵装置内的叶轮中央部分附近的区域通过通道与辅泵装置的吸入口相连，所述通道与辅泵装置的排出能力相比，具有较小的通道面积，辅泵装置的排出口通过一个返回通道与主泵装置的吸入口相连，辅泵装置内的叶轮中央部分附近的区域通过一个排出通道与真空装置相连。排出通道包括一系列缓动阀和一个快动阀，所述缓动阀在用于驱动自吸式离心泵的主发动机与动力源相连后延迟一段时间打开，所述快动阀在主发动机与动力源切断后立即关闭。

Patent RU2015112285A3

`7ВУ’” 2015112285” АЗ Дата публикации: 29.10.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2015112285/06(019247) 03.04.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14165689.2 23.04.2014 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) РАБОЧЕЕ КОЛЕСО ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА, ЦЕНТРОБЕЖНЫЙ НАСОС, А ТАКЖЕ ЕГО ИСПОЛЬЗОВАНИЕ Заявитель: ЗУЛЬЦЕР МЭНЭДЖМЕНТ АГ, СН 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕО4О 7/04 (2006.01) ЕО4рО 29/22 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) во4р 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): СТРО, РЕРАТБ пес, РУУРТ, ЕАРАТКУ, Езрасепев, 7-Р1а Рас, КТРК5, РАТЕМТСОРЕ, Ра еагсЬ, ВКОРТО, ТРО, ИЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория ...

Pump for pumping fibrous suspensions

The disclosure describes a method and a device for pumping fiber suspensions of high consistency. Shear forces disrupting fiber flocs are induced near the front edge of the vanes of the impeller in a centrifugal pump which fluidize the fiber suspension hereby converting it into an easily pumpable state. This is effected by an inlet part having recesses and/or lobes in its inner surface in front of the impeller which cooperate with a rotor having an outer surface in which there are recesses and/or lobes disposed into the inlet part.

Pump screw-wheel and pump with such screw-wheel

FIELD: engines and pumps. SUBSTANCE: set of invention relates to machine building and is intended for transfer of fluids with solid inclusions, for example, effluents. Pump screw-wheel 1 comprises one first blade 3. Note here that said blade comprises first part 3a and first part 3b of centrifugal wheel abutting thereupon, and hub 2 with rotational axis D. Centrifugal wheel blade part 3b is rigidly jointed to hub 2. Said wheel comprises also at least one second blade 4 including screw-wheel blade second part 4a and centrifugal wheel blade second part 4b abutting thereupon. First and second blades 3, 4 have outer edge 3c, 4c. Connector 5 nearby outer edge 3c, 4c interconnects first and second blades 3, 4. Blade second part 4b extends relative to hub 2 so that opening 6 is formed there between in direction D since second part 4b is not directly jointed to hub 2. EFFECT: reliable operation, higher efficiency. 12 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 470 191 (13) C2 (51) МПК F04D 29/22 (2006.01) F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010109741/06, 18.08.2008 (24) Дата начала отсчета срока действия патента: 18.08.2008 (73) Патентообладатель(и): ФРИДЕКО АГ (CH) R U Приоритет(ы): (30) Конвенционный приоритет: 16.08.2007 EP 07114479.4 (72) Автор(ы): ШТЕЛЕ Карл (CH) (43) Дата публикации заявки: 27.09.2011 Бюл. № 27 2 4 7 0 1 9 1 (45) Опубликовано: 20.12.2012 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: ЕР 1811184 А1, 25.07.2007. SU 623004 А, 18.07.1978. SU 1642076 А1, 15.04.1991. RU 2224138 С2, 10.04.2003. DE 2442446 А1, 18.03.1976. 2 4 7 0 1 9 1 R U (86) Заявка PCT: EP 2008/060814 (18.08.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.03.2010 (87) Публикация заявки РСТ: WO 2009/022019 (19.02.2009) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, ...

Stage of centrifugal pump for milling solid abrasive particles contained in pump liquid

FIELD: oil and gas industry.SUBSTANCE: invention relates to the oil industry and can be used in installations of electric centrifugal pumps for grinding solid abrasive particles contained in the pumped liquid during downhole oil production. Stage contains an impeller with blades and a guiding apparatus having blades in the form of prisms. Guiding device is formed by a cylindrical body with upper and lower discs, between which are blades, and prisms are arranged on the inner surface of the cylindrical body to form a crown and are made of a material whose hardness exceeds the hardness of the grinding abrasive particles. Lateral surfaces of the scapula blades are inclined at an angle that provides a collision with abrasive particles emerging from the impeller in the flow of liquid at an angle close to 90 degrees.EFFECT: invention is aimed at increasing the efficiency of grinding hard abrasive particles contained in the pumped liquid and increasing the time between centrifugal pump failure.6 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 669 661 C1 (51) МПК F04D 13/10 (2006.01) F04D 7/04 (2006.01) F04D 29/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 13/10 (2018.08); F04D 7/045 (2018.08); F04D 29/445 (2018.08) (21)(22) Заявка: 2017140764, 22.11.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Акционерное общество "Новомет-Пермь" (RU) 12.10.2018 (56) Список документов, цитированных в отчете о поиске: RU 2157922 C2, 20.10.2000. RU (45) Опубликовано: 12.10.2018 Бюл. № 29 (54) СТУПЕНЬ ЦЕНТРОБЕЖНОГО НАСОСА ДЛЯ ИЗМЕЛЬЧЕНИЯ ТВЕРДЫХ АБРАЗИВНЫХ ЧАСТИЦ, СОДЕРЖАЩИХСЯ В ПЕРЕКАЧИВАЕМОЙ ЖИДКОСТИ (57) Реферат: Изобретение относится к нефтедобывающей зубчатого венца и выполнены из материала, отрасли и может быть использовано в установках твердость которого превышает твердость электроцентробежных насосов для измельчения измельчаемых абразивных частиц. Боковые ...

Vertical single-stage centrifugal electrical pump unit

FIELD: engines and pumps.SUBSTANCE: invention relates to pump engineering. Vertical single-stage centrifugal electrical pump unit comprises vertical centrifugal pump, drive motor, connecting coupling closed by protective guard and connecting shafts of pump and electric motor, and supply pipeline. Rotor in the pump consists of a double-support rotor, one support being made as a plain bearing. Rotor has holes to equalize pressure and two slot seals are installed. Connecting coupling is attached to the pump by means of conical clamping element. Pump shaft drive end is cylindrical and smooth. Sliding bearing is installed in front of the inlet funnel of the impeller, the housing of the sliding bearing is made with separating guides, which guide the flow of pumped liquid axisymmetrically to the input of the impeller, with partitions. Other support is made in the form of a block of rolling bearings installed behind the impeller.EFFECT: invention is aimed at improving operating reliability of vertical single-stage centrifugal electrical pump units.1 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 708 480 C1 (51) МПК F04D 13/06 (2006.01) F04D 13/02 (2006.01) F04D 29/041 (2006.01) F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 13/0633 (2019.02); F04D 13/021 (2019.02); F04D 29/041 (2019.02); F04D 7/045 (2019.02) (21)(22) Заявка: 2018138648, 01.11.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 01.11.2018 (45) Опубликовано: 09.12.2019 Бюл. № 34 2 7 0 8 4 8 0 R U (54) ВЕРТИКАЛЬНЫЙ ОДНОСТУПЕНЧАТЫЙ ЦЕНТРОБЕЖНЫЙ ЭЛЕКТРОНАСОСНЫЙ АГРЕГАТ (57) Реферат: Изобретение относится к области Приводной конец вала насоса выполнен насосостроения. Вертикальный одноступенчатый цилиндрическим и гладким. Подшипник центробежный электронасосный агрегат содержит скольжения установлен перед входной воронкой вертикальный центробежный насос, приводной рабочего ...

SHAFT SUPPORT DEVICE WITH LIFTING DEVICE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 128 959 A (51) МПК F04D 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018128959, 08.08.2018 (71) Заявитель(и): ЗУЛЬЦЕР МЭНЭДЖМЕНТ АГ (CH) Приоритет(ы): (30) Конвенционный приоритет: 23.08.2017 EP 17187563.6 Адрес для переписки: 129090, Москва, ул. Большая Спасская, д. 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 8 1 2 8 9 5 9 R U A (57) Формула изобретения 1. Устройство (1) опоры вала для насоса (2), содержащее подшипник (8, 81, 815) качения, который может быть соединен с аксиально смещаемым валом (5) насоса отличающееся тем, что пружина (7, 71, 72) расположена на подшипнике (8, 81, 815) качения таким образом, что сила пружины (F) может быть передана на подшипник (8, 81, 815) качения посредством пружины (7, 71, 72) в условиях монтажа устройства (1) опоры вала таким образом, что подъемный элемент (3), прикрепленный к валу (5) насоса, и соответствующий промежуточный элемент (4) отделены друг от друга в состоянии запуска и/или в состоянии остановки насоса(2). 2. Устройство (1) опоры вала по п.1, причем устройство (1) опоры вала представляет собой радиальный подшипник. 3. Устройство (1) опоры вала по любому из предшествующих пунктов, причем устройство (1) опоры вала содержит подшипник (8, 81, 815) качения с внутренним кольцом (813) и внешним кольцом (812). 4. Устройство (1) опоры вала по любому из предшествующих пунктов, в котором пружина (7, 71, 72) поддерживается с помощью нажимного кольца (6) в корпусе подшипника (8, 81, 815) качения. 5. Устройство (1) опоры вала по любому из предшествующих пунктов, в котором по меньшей мере три пружины (71), в частности на одном и том же расстоянии (d), расположены по периметру подшипника (8, 81, 815) качения и/или нажимного кольца (6). 6. Устройство (1) опоры вала по любому из пп.1, 2, 3 или 4, в котором пружина (7, 71, 72) образована в виде дисковой пружины (72), расположенной вокруг ...

Water pump

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Agitated slurry pump box for oil sand hydrotransport

A large, mechanically agitated pump box is used between a mixer, for mixing oil sand and water to produce a slurry, and a pipeline for conveying the slurry to a processing facility. Prior to the aqueous slurry being discharged into the pump box from the mixer, it is screened to reject large solids. The oversize is directed to an impactor where it is comminuted and the comminuted product is screened again prior to being discharged into the pump box. The pump box is designed to increase the residence time of the slurry in the pump box and to separate the slurry into two phases, the suspended slurry and the larger lumps that cannot be suspended. The larger lumps that settle in the pump box are recycled to the impactor for comminution.

Centrifugal pump

FIELD: engines and pumps. SUBSTANCE: invention relates to the centrifugal pump for supply of gas-containing suspension, in particular fibrous material suspension, which comprises the pump impeller (12), at least, with one hole (15) in the bearing plate and ribs (16) on the back side. The separator device (17) which comprises the separator housing (25) with the fixed disk (18) and the disk (22) rotating together with the pump shaft (21) is provisioned. The separator device (17) in the pump housing is located from the back side of the impeller (12) closely to it from the impeller (12) side in the axial direction. The separator (25) housing comprises the gas collector chamber (31) with the exhaust pipeline (28). The disk (22) rotating together with the pump shaft (21) has a continuous surface (23) without holes. EFFECT: losses of material can be reduced and increase of stability of operation of the centrifugal pump at supply of gas-containing suspension, in particular fibrous material suspension is achieved. 8 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 561 344 C2 (51) МПК F04D 9/00 (2006.01) F04D 7/04 (2006.01) D21D 5/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013116378/06, 23.09.2011 (24) Дата начала отсчета срока действия патента: 23.09.2011 (72) Автор(ы): МИХАЛЬ Людвиг (AT) (73) Патентообладатель(и): АНДРИЦ АГ (AT) Приоритет(ы): (30) Конвенционный приоритет: R U 27.09.2010 AT A1613/2010 (43) Дата публикации заявки: 10.11.2014 Бюл. № 31 (45) Опубликовано: 27.08.2015 Бюл. № 24 2 5 6 1 3 4 4 (56) Список документов, цитированных в отчете о поиске: EP 1736218 A1, 27.12.2006. SU 558691 A, 20.06.1977. SU 1825402 A3, 30.06.1993. US 5087171 A, 11.02.1992. US 4936744 A, 26.06.1990. US 5266160 A, 30.11.1993 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.04.2013 (86) Заявка PCT: 2 5 6 1 3 4 4 R U C 2 C 2 AT 2011/000391 (23.09.2011) (87) Публикация заявки PCT: WO 2012/040752 ( ...

Centrifugal pump and method for adjusting distance of wear-resistant plate from impeller of centrifugal pump

FIELD: pumps.SUBSTANCE: invention relates to a centrifugal pump (1) for lifting clean water or water with suspended particles, comprising a hollow body (2) defining a central axis (L) and having a front hole (3) and a volute (4) with an inlet channel (5), an impeller (8) located in the body (2) configured to connect with the engine and having blades (9), wherein the upper edges (10) of the blades essentially lie in the same plane with the annular peripheral area (11). Also provided is a lid (12) for closing the front hole (3) comprised of a flange (13) with a central part (14) and a substantially radial peripheral part (16) of a substantially circular wear-resistant plate (19) rigidly connected to the flange (13) and located at a predetermined axial distance (d1) from the annular peripheral area (11) of the impeller (8) and from the adjusting tools (24) for controlled adjustment of the axial distance (d1) of the wear-resistant plate (19). The adjusting tools (24) are mounted on the flange (13) and can be accessed from the outside and are configured to calibrate the axial position of the wear-resistant plate (19) and to lock said plate in the calibrated position. Also described is a method of adjusting the axial distance (d1) of a wear-resistant plate (19) from an impeller (8) in a centrifugal pump (1).EFFECT: invention provides a simple and quick initial adjustment of the distance between a wear plate and an impeller, as well as technical maintenance.14 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 751 118 C2 (51) МПК F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 7/04 (2021.02) (21)(22) Заявка: 2019125336, 03.03.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ВАРИСКО С.Р.Л. (IT) Дата регистрации: 08.07.2021 Приоритет(ы): (22) Дата подачи заявки: 03.03.2017 (43) Дата публикации заявки: 05.04.2021 Бюл. № 10 (45) Опубликовано: 08.07.2021 Бюл. № 19 (85) ...

Self-blockage-cleaning type submersible pump

本发明公开了一种自清堵型潜水泵，包括基座和固定安装在基座上端的泵体及潜水电机，所述泵体包括泵体进水端和泵体出水端，所述泵体进水端和泵体出水端上端分别开设有进水口和出水口，所述潜水电机的输出轴贯穿至泵体出水端。本发明通过设置清堵机构、驱动机构和推动机构，可以在潜水泵进水口发生堵塞时，通过气压推动滑杆上升，进而带动螺纹杆上升，同时在套筒的作用下使螺纹杆发生转动，带动清堵叉旋转，实现清堵叉边上升边旋转的动作，对出水口的堵塞物进行清除，使潜水泵正常工作，清堵迅速，效率较高，同时无需人工清堵，避免清堵人员工作时发生危险，同时潜水泵无需停机，不会对生产造成较大影响。

Drag-reducing wear-resistant slurry pump volute

本发明公开了一种减阻抗磨渣浆泵蜗壳，包括壳体，壳体的流道为流道曲面，流道曲面为弧形结构，壳体上设有安装单向进气阀的安装孔，壳体的流道内壁嵌固有向流道喷气的喷气环块，喷气环块与单向进气阀密封连接，喷气环块的内壁与流道曲面形状对应且平齐。利用气膜减阻原理，通过在渣浆泵蜗壳流道内壁嵌装喷气环块，喷出的气体在浆体高速旋转的带动下贴附整个蜗壳流道，从而在渣浆与蜗壳流道内壁之间形成一层均匀气膜，减小了渣浆对流道内壁的冲蚀，提高了蜗壳内的渣浆输送效率，具有减阻抗磨双层功效。

Centrifugal pump impeller

FIELD: mechanical engineering; pumps. SUBSTANCE: fluidizing blade is arranged axially outwards relative to working blade. Delivering blade in installed radially outwards relative to fluidizing blade and it passes along part of axial length of fluidizing blade. Delivering blade is installed at angle between 1 and 89 degrees relative to axis of impeller. Each delivering blade is made helical. Impeller has many fluidizing blades installed to form central axial hole. EFFECT: enlarged operating capabilities. 3 cl, 2 dwg 4Д93800с ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ ”’ 2008 527‘ 57 МК” | 040 29/22 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5001712/29, 19.09.1991 (30) Приоритет: 4$/08.11.88/268599 (30) Приоритет: 08.11.1988 Ц$ 88 268599 (46) Дата публикации: 28.02.1994 (71) Заявитель: А.Альстрем Корпорейшн (Е1) (72) Изобретатель: Юкка Тимнери[ЕП, Реййо Весала[[!], Веса Викман[ Е! (73) Патентообладатель: А.Альстрем Корпорейшн (Е!) (54) РАБОЧЕЕ КОЛЕСО ЦЕНТРОБЕЖНОГО НАСОСА (57) Реферат: Сущность изобретения: флюидизирующая лопасть расположена аксиально наружу от рабочей лопасти. Питающая попасть смонтирована радиально наружу от флюидизирующей лопасти и проходит вдоль части ее осевой протяженности. Питающая лопасть ориентирована под углом между 1 и 89 относительно оси рабочего колеса. Каждая питающая лопасть изогнута по винтовой линии. Рабочее колесо содержит множество флюидизирующих лопастей, установленных с образованием центрального аксиально расположенного отверстия. 2 3. п. ф-лы, 2 ил. 2008527 С1 КО 4Д93800с ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВО "” 2008 527' (Бе 2 040 29/22 СЛ 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 5001712/29, 19.09.1991 (30) Рпошу: 4$08.11.88/268599 (30) Рпогйу: 08.11.1988 Ц$ 88 268599 (46) Рае оГ рибИсаНоп: 28.02.1994 (71) АррИсапе: А.АГ'ЗТВЕМ КОКРОКЕЗНМ (|) (72) пуетщогг УОККА ИММЕВТЕП, КЕЛО МЕЗАЕГА[ЕП, УЕЗА МКМАМГЕ! (73) Ргорпеюг: А.АГ'ЭТКЕМ КОКРОКВЕШЗНМ ...

Nonclogging pumping device

An underwater pump

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Vertical shaft pump

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Improvements in or relating to disintegrating pumps for liquid-borne solids such, for example, as sewage

567,472. Centrifugal pumps. PULSOMETER ENGINEERING CO., Ltd., and PRICE, A. V. Aug. 12, 1943, No. 13046. [Class 110(i)] A centrifugal pump for liquids containing solids comprises a conical impeller C, C<1> coacting with one or more adjustable fixed knives E arranged so that the plane of each knife includes or is parallel with the centre line of the impeller. After passing the first stage, the liquid may be acted on by a second impeller D coacting with knives G similarly arranged. Each knife E may be of such length that it is in continuous contact with at least two impeller blades. The blades D may be cut away to form guides for the partly-cut solids from the first stage..

Pump with axial balance

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`7ВУ’” 2018144302” АЗ Дата публикации: 30.07.2020 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018144302/12(073858) 10.05.2017 РСТ/ЕР2017/061137 10.05.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 16169846.9 17.05.2016 ЕР Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) НАСОС ДЛЯ ПЕРЕКАЧИВАНИЯ ЖИДКОСТИ, А ТАКЖЕ УЗЕЛ КРЫЛЬЧАТКИ Заявитель: КСИЛЕМ АйПи МЭНЕДЖМЕНТ С.А Р.Л., ГО 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. П см. Примечания [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕО4р 7/04 (2006.01) Ео4р 29/20 (2006.01) Е04О 29/042 (2006.01) ЕО04О 13/08 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВО4О 7/00-Е04Ш 7/04, ЕОАО 29/00, ЕО4О 29/04-В0О4О 29/042, НОА 29/18-НО4О 29/22, НО4Р 13/00-[04О 13/08 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепев, РаБеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- ...