| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 415071000 | RUNNER HAS SPIRALLY ARRANGED BLADE OR FLUID PASSAGE | 28 |
| 20090047119 | SUBMERSIBLE MULTISTAGE PUMP WITH IMPELLERS HAVING DIVERGING SHROUDS - A centrifugal pump may include plural pump stages, each comprising an impeller assembly, a stationary disc assembly and a diffuser assembly, all disposed about an impeller shaft that is driven by a motor. The impeller assembly may include upper and lower impeller shrouds having facing surfaces, and a plurality of impeller vanes extending between the surfaces of the shrouds to define a plurality of flow passages for liquid to flow outwardly from a central hub of the impeller assembly. To assist in pressure recovery of the pump, the distance between the surfaces of the impeller shrouds may increase as the radial distance from the central hub increases. | 02-19-2009 |
| 20100221097 | SIDE CHANNEL COMPRESSOR - The invention concerns a side channel compressor for compressing a gas, the side channel compressor comprising a housing ( | 09-02-2010 |
| 20100303609 | SUBSTANCE TRANSFER DEVICE - A material delivery apparatus is provided which is capable of delivering a material in a large amount per unit area per unit time without damaging the material, and capable of discharging the delivered material powerfully from the outlet port. A rotary body 30 rotates on the rotation axis, a line 36 (imaginary line) connecting the center point of the round top face 32 and the center point of the round bottom face 34. The rotary body 30 has on the outside peripheral face 31 a spiral fin 50 which rotates together with the rotary body 30. The fin 50 extends from the top end to the rear end (end to end) of the outside peripheral face 31 of the rotary body 30. The fin 50 stretches out from the outside peripheral face 31 of the rotary body 30 close to the inside peripheral face 24 of the casing 20 to cause little leakage of the material through the clearance between the edge of the fin 50 and the inside peripheral face 24. The distance d between the confronting faces of the fin 50 is kept unchanged. | 12-02-2010 |
| 20130101394 | FREE-SURFACE LIQUID TRANSFER DEVICE FOR ROTATING MACHINERY - A free-surface liquid transfer apparatus for rotating machinery includes a rotating member. The rotating member includes a main shaft defining a hollow inner cavity, an outer cylindrical wall defining a hollow annular cavity in fluid communication with the hollow inner cavity through a plurality of orifices formed on the main shaft, and a slinger formation in fluid communication with the hollow annular cavity through a plurality of radial slots formed through the slinger formation. A central axis of the main shaft, a central axis of the hollow annular cavity, and a central axis of the slinger formation are collinear, and the slinger formation is configured to transmit working fluid received through the plurality of radial slots outward as a continuous film having both tangential and radial velocity components. | 04-25-2013 |
| 20130330170 | PUMP AND METHOD FOR PRODUCING AN IMPELLER FOR A PUMP - In a centrifugal pump for pumping a fluid with central axial suctioning and radial discharging of the fluid to be pumped out of the impeller, the impeller includes an upper cover plate and a lower cover plate and multiple interposed blades therebetween. In the radial inner region, the blades extend essentially parallel to the rotation axis of the impeller in the axial direction of the pump and thus are upright, wherein said blades in the course radially outwards thereof are increasingly inclined or extend oblique. | 12-12-2013 |
| 20140003910 | TURBINE FOR AN EXHAUST GAS TURBOCHARGER | 01-02-2014 |
| 20140219776 | Arrangement for extracting energy from flowing liquid - An arrangement for extracting energy from flowing liquid, such as tidal flows, oceanic currents and water flowing in rivers. The arrangement comprises a support device ( | 08-07-2014 |
| 20150361947 | Convertible Water Pump - A convertible pump formed of wound flexible tubing having an inlet communicating water to an outlet at an opposite end of the tubing. A paddle wheel with collapsible fins provides power to rotate the pump when in a vertical position. A planar surface of the wound tubing forms a table when pivoted on a stand to a horizontal disposition with the support surface for the stand. | 12-17-2015 |
| 20160010271 | DRAIN PUMP AND A CLOTHES DRYER HAVING A DRAIN PUMP | 01-14-2016 |
| 415072000 | Extending along runner axis (i.e., axial flow) | 19 |
| 20090003986 | Pump and Pumping System Utilizing the Same - Provided are a pumping device and a pumping system utilizing the same. The pumping system includes: a tower, installed at a water intake place, having an internal space section and a water-bearing section disposed on the internal space section; an outlet pipe connecting the water-bearing section and a reservoir installed on land; an intake pipe which communicates with the internal space section, extends to the water intake place from a lower portion of the tower, and has an upward folded end, a hood being installed at the upward folded end; and a pumping device, installed in the tower, pumping water entered into the internal space section via the intake pipe to the water-bearing section and including: a rotary shaft vertically installed in the tower; a rotor including a screw pumping unit and a centrifugal pumping unit disposed on the screw pumping unit, the screw pumping unit including an inner body installed slidably along the rotary shaft and having a shaft bearing and a buoyancy space, an outer body separated from the inner body by a predetermined distance to surround the inner body, and a plurality of wings installed between the inner body and the outer body to form a spiral pumping passage, and the centrifugal pumping unit radially ejecting water pumped by the screw pumping unit under a centrifugal force; and a driver installed in the tower to drive the rotor. | 01-01-2009 |
| 20090016870 | TURBOFAN ENGINE - A turbofan engine of the invention is provided with a fan first-stage moving blade for taking an air therein, and a spinner rotationally driving the fan first-stage moving blade, the spinner has a spiral blade extending spirally to an outer side in a radial direction, sucking the air from a front face of the spinner and supplying the air to the fan first-stage moving blade. Further, the fan first-stage moving blade and the spinner are integrally coupled, and the spiral blade and the fan first-stage moving blade are formed such that blade surfaces are smoothly connected. | 01-15-2009 |
| 20090035123 | Vacuum pump - A vacuum pump ( | 02-05-2009 |
| 20090041574 | UNI-AXIAL SCREW PUMP - The present invention describes a uni-axial screw pump to convey viscous fluids with high pump efficiency wherein restraining devices restrain the fluid's tendency to rotate around the axis as the rotor rotates. As a result, all the fluid trapped between the helical thread and inner surface of inner cylindrical casing is forced in the axial direction towards the discharge end. It can also be employed as hydraulic turbine, thermo motor, liquid motor, extruder, molder and etc. The screw pump includes a thread disconnected perpendicularly to the axis to make a plurality of thread sections, a plurality of annular restraining devices being inserted in the annular gaps formed between disconnected thread sections. The annular restraining devices have restraining elements and openings for the fluid to be conveyed through, inner cylindrical sections being axially disposed between the inserted annular restraining devices to enclose the screw rotor. | 02-12-2009 |
| 20110033279 | ROTOR DRIVE MECHANISM AND PUMP APPARATUS - To provide a rotor drive mechanism which realizes that a rotor rotating at high speed can be used by reducing the amount of heat and vibrations generated when the rotor is rotated at high speed and lowering a contact pressure between an outer surface of the rotor and an inner surface of a stator inner hole or preventing the outer surface of the rotor and the inner surface of the stator inner hole from contacting each other. | 02-10-2011 |
| 20130108412 | UNIAXIAL ECCENTRIC SCREW PUMP | 05-02-2013 |
| 20150044026 | Inducer for Centrifugal Pump - An inducer for vertical flow, cryogenic liquid centrifugal pumps comprising a stationary outer housing portion having an inlet and an outlet, the inlet located at a lower end and the outlet located at an upper end, the housing further having an inner wall portion with one or more spiral vanes projecting outwardly from the inner wall portion, the one or more spiral vanes defining one or more gap regions on the inner wall portion that spiral in a first direction, and an inner rotating impeller mounted on a rotating center shaft, the impeller having at least one curved blade which defines a curved, helicoid plane surface in which the slope of the plane increases as the distance from the center axis increases, the impeller rotating in a second direction which is in counter rotation to the first direction. | 02-12-2015 |
| 20160090982 | Liquid Ring Screw Pump Functional Design - A liquid ring screw pump includes a housing with a suction inlet section and a pressure outlet section. Within the housing an Archimedes screw rotor is driven by a motor via a shaft. The inlet section and outlet section are each provided with connecting structure for suction and pressure piping respectively. The displacement CD of the screw rotor in relation to the center axis of the housing is determined by an equation based on the screw rotor radius, a minimum screw rotor core radius, and a variable k that is between 0.14 and 0.29. | 03-31-2016 |
| 415073000 | Fluid conducting passage | 11 |
| 20090196733 | Rotary Pressure Rise Combustor For A Gas Turbine Engine - A gas generator for providing continuous pressure rise combustion, including: a rotatable member including a forward end, an aft end, a circumferential wall and a longitudinal centerline axis extending therethrough; an outer circumferential wall, wherein the rotatable member is positioned therein so that the circumferential wall of the rotatable member is spaced radially inwardly from the outer circumferential wall; at least one helical channel formed by a plurality of helical sidewalls extending between the circumferential wall of the rotatable member and the outer circumferential wall, each helical channel being open at the forward end and the aft end of the rotatable member so as to provide flow communication therethrough; an air supply for providing air to each helical channel; and, a fuel supply for providing fuel to each helical channel. Each helical channel includes an inlet portion having a first cross-sectional area for receiving a flow having a designated shape and orientation, a throat portion downstream of the inlet portion having a second cross-section less than the first cross-section of the inlet portion, and a diffusion portion downstream of the throat portion having a third cross-section greater than the second cross-section of the throat portion. A device is also positioned downstream from the diffusion portion of each helical channel for holding flame therein. A mixture of the fuel and air is continuously combusted downstream of the diffusion portion of each helical channel in a manner such that combustion gases exit therefrom with an increased pressure and temperature. | 08-06-2009 |
| 20110033280 | HYBRID RAM AIR TURBINE WITH INLET GUIDE VANES - A hybrid ram air turbine includes a generally conical-shaped shaft which mounts a number of vanes wrapped in a substantially helical orientation along the shaft with a portion of each vane being formed in the general shape of a reaction turbine blade and another portion in the general shape of an impulse turbine blade. A number of fixed inlet guide vanes having a convergent wedge shape direct a flow of air onto the blades of the turbine which is mounted within the interior of a pod. | 02-10-2011 |
| 20110091312 | MAINTENANCE SYSTEM OF HELICAL TURBINE - Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers. | 04-21-2011 |
| 20110158789 | MAINTENANCE SYSTEM OF HELICAL TURBINE - Disclosed is an assembled helical turbine system, which can strengthen weakenings of a housing assembly, and simultaneously can be easily assembled/disassembled. The assembled helical turbine system comprises the housing assembly including a plurality of bearing spiders for rotatably supporting a rotating shaft of a helical turbine, and a plurality of side posts for connecting and fixing the respective bearing spiders to each other, the side posts being fixed in such a manner as to radially protrude by a predetermined length from peripheral surfaces of the bearing spiders; filling members for filling and reinforcing spaces between the peripheral surfaces of the bearing spiders and outlines of protruding portions of the side posts; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to stoppers. | 06-30-2011 |
| 20120269614 | SUBMERSIBLE CENTRIFUGAL PUMP FOR SOLIDS-LADEN FLUID - A submersible centrifugal pump is disclosed. The submersible centrifugal pump includes a pump housing having a pump intake disposed generally opposite a pump outlet. A shaft extends at least partially through the pump housing and is adapted to be driven by a submersible motor. A centrifugal impeller is attached to the shaft and has an opening for fluid intake. A diffuser is disposed corresponding to the centrifugal impellers to form a pump stage. And an auger is coupled to the shaft. | 10-25-2012 |
| 20130115046 | HIGH SPEED SWIRLING TYPE CENTRIFUGAL REVOLVING PIPELINE DEVICE - A high speed swirling type centrifugal revolving pipeline device, which utilizes a spiral pipeline curling and revolving with different pipe radius and with different radius of curvature, comprising an inlet pipeline, at least two transport pipelines, and at least a pressuring and accelerating pipeline, to serve as transport pipeline for fluid to continue swirling up. At least a driving device is used to drive spiral pipeline. Spiral pipeline design and centrifugal force produced by high speed rotation are used to drive fluid to the highest water level swiftly and stably, to proceed with subsequent conversion of regenerated energy into electrical power. | 05-09-2013 |
| 20140086726 | TURBOCHARGER AND METHOD OF PRODUCING THEREOF - A turbocharger includes a compressor housing, a bearing housing and a back plate. A discharge scroll chamber has such a shape that a cross-sectional area thereof gradually increases toward a discharge port in a circumferential direction. The compressor housing includes a scroll piece assembled to a shroud piece. The scroll piece includes a suction port-forming portion, a suction-side concave surface and a scroll outer periphery. The shroud piece includes a shroud fit-in portion, an inner peripheral concave surface, a shroud surface and a diffuser surface. The back plate includes a facing surface, an outer peripheral annular fit-in portion and an outer peripheral concave surface. The outer peripheral concave surface has such a shape that a cross sectional shape thereof formed by a plane including a rotation axis of an impeller gradually changes in the circumferential direction. | 03-27-2014 |
| 20140140815 | Medical Pump - A surgical instrument includes a hub, a rotating member, an impeller, and an impeller enclosure. The hub has a proximal portion and a distal portion and defines a lumen therebetween. The distal portion of the hub includes a sleeve portion configured to rotatably support the rotating member. The rotating member extends through the hub and has a proximal end and a distal end. The proximal end of the rotating member is configured to couple to an external driving mechanism. The impeller is coupled to the distal end of the rotating member and is configured to accelerate fluid flowing into or out of the lumen. The impeller enclosure is coupled to the distal portion of the hub and defines an impeller volume around the impeller. One or more openings are defined around the sleeve portion of the hub such that the lumen is in fluid communication with the impeller volume. | 05-22-2014 |
| 20140205433 | SPIRAL PUMPING STAGE AND VACUUM PUMP INCORPORATING SUCH PUMPING STAGE - A spiral pumping stage includes both centripetal and centrifugal pumping channels, so that the gas is pumped from the periphery to the center of the pumping stage throughout a first group of pumping channels and it is pumped from the center to the periphery of the pumping stage throughout a second group of pumping channels. Thanks to this inventive arrangement, both the gas coming from a previous pumping stage or a main pump inlet arranged upstream the pumping stage according to the invention and the gas coming from the additional side inlet can be effectively pumped by the pumping stage according to the invention. | 07-24-2014 |
| 20150044027 | SYSTEM AND APPARATUS FOR PUMPING A MULTIPHASE FLUID - A pump for pumping a multiphase fluid includes a housing and a rotor with an outer surface. A plurality of inducer vanes are attached to the rotor hub, each having a leading edge and a trailing edge where the leading edge of one inducer vane overlaps the trailing edge of an adjacent inducer vane by a first overlap angle. A plurality of impeller vanes are also attached to the hub. The impeller vanes each have a leading edge and a trailing edge where the leading edge of one impeller vane overlaps the trailing edge of an adjacent impeller vane by a second overlap angle larger than the first overlap angle. The pump includes a rotor flow channel extending between the hub outer surface and the housing inner surface. The rotor flow channel has an inlet area and an outlet area, whereby the outlet area is smaller than the inlet area. | 02-12-2015 |
| 20160160877 | Vacuum Pump - An object is to provide a vacuum pump that enables, without being affected by a flow rate of gas to be discharged, concentrated and efficient heating of only a stator component of an exhaust side gas channel that needs to be heated in order to prevent deposition of products and that also enables prevention of deposition of products in the exhaust side gas channel as a result of the heating, and improvement of pump emission performance. The vacuum pump has a rotor rotatably arranged on a pump base and a gas channel through which gas sucked by rotation of the gas is guided to an outlet port, and further includes heat insulating means for thermally insulating a stator component, which forms an exhaust side gas channel in the gas channel, from other components and heating means for heating the thermally insulated stator component. | 06-09-2016 |
