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WO/2015/055833A1 |
The invention relates to a motor-driven centrifugal pump for circulation of heat transfer fluid in the primary circuit of a nuclear reactor. The motor-driven pump comprises a hermetic motor unit (12), a hydraulic section (13) and a shaft...
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WO/2015/055831A1 |
The invention relates to a motor-driven centrifugal pump for circulation of heat transfer fluid in the primary circuit of a nuclear reactor. The motor-driven pump comprises a hermetic motor unit (12), a hydraulic section (13) and a shaft...
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WO/2015/042634A1 |
An impeller for a pump, the impeller comprising a main body which in use is rotatable about a central axis, the main body including a front side and a rear side, the front side having a generally spherical cap-like or dome-shaped surface...
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WO/2015/032609A1 |
A pump having a cutting wheel and a pre-cutter (26) for cutting chippings that are contained in the medium pumped by the pump, the pre-cutter being driven by a shaft portion that projects axially from the cutting wheel and having a plura...
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WO/2015/032608A1 |
A pump having a cutting wheel (20) and a pre-cutter (26) driven by a shaft portion (24) that projects axially from the cutting wheel (20) and has a plurality of wings (28) that extend radially from the shaft portion (24), wherein the win...
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WO/2015/032611A1 |
A pump having a cutting wheel with wings (20a) the edges of which are configured as cutting edges (22) for cutting chippings (46, 46a) that are contained in the medium that is being pumped by the pump, the pump comprising a cutting plate...
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WO/2015/032610A1 |
A pump having a cutting wheel and a pre-cutter (26) for cutting chippings that are con-tained in the medium pumped by the pump, the pre-cutter being driven by a shaft por-tion that projects axially from the cutting wheel and having a plu...
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WO/2015/022648A1 |
The invention relates to an impeller assembly and a pump for pumping a liquid, comprising a pump chamber and an impeller (4) arranged to rotate in said pump chamber, said impeller being suspended in a lower end (5) of an axially extendin...
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WO/2015/022601A1 |
The invention relates to an impeller assembly and a pump for pumping a liquid, comprising a pump chamber and an impeller (4) arranged to rotate in said pump chamber, said impeller being suspended in a lower end (5) of an axially extendin...
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WO/2015/017740A1 |
The present invention is a pump (100) used for applications where a solid (130) is present in wastewater and other liquids that requires cutting and reduction in size so as to pass the solid (130) through the inlet (105) to the outlet (1...
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WO/2015/001830A1 |
The present invention provides a pump blade of a submerged pump that can eliminate or reduce radial load. A pump blade for a non-clogging submerged pump provided with a substantially cylindrical body, an intake port provided in the cente...
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WO/2014/208327A1 |
Provided is a structure that prevents corrosion from occurring and progressing between materials even when a casing and a casing ring (liner ring) (19) are of dissimilar metal materials and that prevents erosion by way of cavitation caus...
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WO/2014/153616A1 |
A pump impeller which includes: a back shroud having an inner main face with an outer peripheral edge and a central axis, the impeller in use being rotatable about the central axis in a direction of rotation, a plurality of pumping vanes...
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WO/2014/147915A1 |
This leakage prevention seal is provided with: a first seal ring (40) which surrounds a rotating shaft (1) and which is in circumferential contact with the surface of a housing (2) which faces the upstream side; a second seal ring (50) w...
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WO/2014/139578A1 |
The present invention relates to a pump impeller (1) having a front plate (2), a back plate (3), and impeller blades (4) between the front and the back plates (2, 3), wherein the impeller blades (4) consist of a base material, which is m...
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WO/2014/140828A1 |
A roving submersible pump arrangement for movement in a body of fluid is presented. The pump arrangement includes a submersible pump having an inlet and a discharge outlet and a buoyant transport device connected to the submersible pump....
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WO/2014/128028A1 |
The invention relates to a pump that includes: a chamber (4) for heat-transport fluid flow; a pump wheel (10) which is placed entirely in the flow chamber (4) and which comprises a hub (40); a shaft (14) for rotating the pump wheel (10),...
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WO/2014/125411A1 |
The invention relates to a pump for pumping a liquid, comprising a hydraulic unit (1), which comprises a pump housing (2), an insert ring (3) and an impeller (4) arranged to rotate in said pump housing (2), the hydraulic unit (1) compris...
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WO/2014/112473A1 |
The present invention pertains to a centrifugal pump; in particular, it provides a centrifugal pump with which blockage of the pump by fibrous material or solid material is prevented when a liquid containing these materials is transporte...
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WO/2014/106996A1 |
The present invention relates to a plastic pump and to a method for manufacturing same. The method includes: a pre-manufacturing step for pre-manufacturing an inner body and impeller formed from a fluorine resin material by means of inje...
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WO/2014/106635A1 |
The invention provides a centrifugal pump, distinctive in that the pump comprises two or more stages; the last stage in the direction of flow has been adapted so that it provides a larger equilibrium droplet size than the upstream stages...
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WO/2014/099484A1 |
A centrifugal pump (108) has a gas accumulation reduction system to reduce the risk of gas locking caused by the accumulation of gas at the inlet of the impeller. The gas accumulation reduction system includes: (i) one or more diffuser p...
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WO/2014/088998A1 |
A pump or rotary equipment features a casing assembly having a region through which high velocity fluid and solids circulate, a chamber that does not have circulating therein the high velocity fluid and solids, an aperture that allows a ...
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WO/2014/086472A1 |
The invention relates to a centrifugal pump, in particular a waste water submersible pump having an impeller (1), of which the end face facing the pump intake opening is open and only the end face of the impeller facing away from the int...
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WO/2014/086473A1 |
The invention relates to a centrifugal pump, in particular a motor pump for waste water or polluted water comprising an impeller (1), the end face of which facing the pump intake opening is open and only the end face of the impeller faci...
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WO/2014/081707A1 |
A slurry pump component is disclosed. The slurry pump component may have a base member fabricated from white iron, and a cladding surface made of a wear resistant material disposed in a tool steel matrix on the base member. The wear resi...
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WO/2014/081844A1 |
A slurry pump component includes a base member with a cladding surface. The cladding surface includes a brazing alloy inner layer (44), a ductile intermediate layer (45) and a wear resistant outer layer (46).
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WO/2014/073140A1 |
A casing that houses a centrifugal impeller has a partition surface that opposes the standing end surface of the centrifugal impeller blade, with a prescribed clearance in the direction of the axial center of rotation. A protruding part,...
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WO/2014/073054A1 |
The purpose of the present invention is to provide a pump device which has the function of separating foreign matter from operating fluid containing foreign matter and which can accommodate an increase in the flow rate of the operating f...
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WO/2014/073976A1 |
An impeller (1, 1a, 10) for a centrifugal pump intended for pumping fluid containing solid particles, the impeller (1, 1a, 10) having a rear side wall (2, 2a, 12) and a front side wall (3, 3a, 13), and there being, arranged between the r...
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WO/2014/049665A1 |
An impeller for a centrifugal pump is provided with a single blade with a winding angle set to less than 360°. When the winding angle at the leading edge of the single blade is defined as 0 and the winding angle at the trailing edge the...
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WO/2014/051068A1 |
Provided are a shaft sealing structure and a primary-cooling-material-circulating pump that are able to lengthen the time of durability in preventing the leakage of a fluid. The shaft sealing structure is provided with: a sealing ring (1...
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WO/2014/029790A1 |
The invention relates to an impeller for a pump for conveying effluent, said impeller having a support body (32) capable of rotation around an axis of rotation (A), on which support body two conveying vanes (31) are provided. The vanes (...
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WO/2014/020375A1 |
A pump and submersible solids processing arrangement includes a pump, having a suction inlet and discharge, and a submersible solids processing arrangement positioned in fluid communication with the suction inlet of the pump and being st...
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WO/2013/182528A1 |
The invention relates to a device (1) for sealing a pump of a nuclear power station, said device (1) comprising : • a mechanical packing (70), • a fluid header comprising: - a first plurality of surfaces (35) that cooperate with said...
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WO/2013/157986A1 |
The invention relates to the design of a pump for delivering molten metals and hot fluids, in particular for producing jets of liquid metal serving as a liquid-metal electrode in high-power sources of X-ray or extreme ultraviolet radi...
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WO/2013/144623A1 |
A pump (10) comprising a pump casing (20) having front and rear sides (23, 24) with a pumping chamber (38), a chamber inlet (26) and a discharge outlet (27). An impeller (40) within the chamber rotates about an axis. The chamber includes...
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WO/2013/141120A1 |
A centrifugal pump is provided with: a pump chamber (24); a blood ingress port (25) through which blood Q flows in, the blood ingress port (25) communicating with the pump chamber (24); a housing (2) having a blood egress port (26) throu...
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WO/2013/118419A1 |
[Problem] The purpose of the present invention is to obtain a centrifugal blood pump for circulating blood wherein an impeller makes no contact at all with a housing and a rotating shaft and moves rotatingly with the impeller in a stably...
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WO/2013/112045A1 |
The invention relates to a pump housing (2) comprising a circumferential wall (3), a pump casing (20) and a shaft cover (40). The pump casing (20) is attached to the circumferential wall (3) by a plurality of connection means. The pump c...
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WO/2013/092144A1 |
A pump (1) for pumping highly viscous fluids is presented that includes a casing (3), an inlet (7), an outlet (8) and a closed impeller (5) rotatably arranged in the casing between the inlet and the outlet and that has a side room (6) be...
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WO/2013/096726A1 |
The invention relates to a method for controlling a pump arrangement comprising a pump (2) having a motor (7) and a control unit (6), said motor (7), when the pump (2) is in an active state and the motor (7) is driven in a first directio...
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WO/2013/050031A1 |
The proposed centrifugal pump for pumping fluids containing solid materials consists of a pump housing (1) and an impeller (2) arranged on a rotationally driven shaft. The pump housing (1) comprises a flow chamber with a suction area (4)...
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WO/2013/037945A1 |
The invention relates to an impeller vane (10) having a leading edge (11) and a trailing edge (12) wherein said impeller vane (10) comprises at least a first metallic core material and at least a first wear resistant material, wherein th...
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WO/2013/025291A1 |
A pump arrangement is provided having a seal ring configured with at least three left-handed threaded apertures; a suction half casing; a suction liner configured between the seal ring and the suction half casing; and at least three adju...
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WO/2013/010224A1 |
A pump side part for use with a shrouded pump impeller, comprising a side wall section rear face including an outer region with an outer edge in a plane which is substantially at right angles to the rotation axis, an inner region with an...
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WO/2012/154118A9 |
The invention concerns a rotor machine and an impeller, of which the rotor machine is intended to function as a liquid pump or as an agitator in a fluid such as a liquid or a colloid, whereby the rotor machine has a pump casing (1) with ...
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WO/2013/000032A1 |
An impeller for a pump is described, the impeller including: an impeller body formed from a ceramic material and including pumping vanes; an impeller hub formed from a metallic material; the impeller hub includes a central boss arranged ...
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WO/2012/158277A1 |
Method and apparatus for moving liquid cryogen at relatively low pressures and at high volumes. An axial rotor pump (70) may have housing (71) with a substantially vertical tubular space (86). The axial rotor pump may pump liquid cryogen...
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WO/2012/156726A1 |
This invention relates to programmable electronic device that prevents wastewater submersible and non-submersible pumps as well as viscous pumps from ragging therefore avoiding pump blockage. In one aspect the invention provides a pump a...
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