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Patent Searching and Data


Matches 301 - 350 out of 2,538

Document Document Title
WO/2003/062645A1
A multistage pump, comprising a plurality of intermediate casings (2) formed by press-molding a steel plate, the intermediate casing further comprising a cylindrical side face part (21), a stage flat face part (23) coming into contact wi...  
WO/2003/038284A1
A high lift and large capacity turbo pump, wherein two to four sheets of rotors (13) formed by collisionlessly connecting axial flow type upstream side screw parts (13a) having inducer parts (13a1) extending to the suction flow passage o...  
WO/2003/036096A1
The invention relates to a method for optimizing the operation of several compressor units in a natural gas compression station. After a second or other compressor unit is started, the speeds of the running compressor units are set accor...  
WO/2003/023230A1
A pitot tube inlet (40) for the pitot tube (26) of a centrifugal pump is configured to improve pump efficiencies when processing fluids that have solids content wherein the type or character of which causes the solids to accumulate along...  
WO2002040861A8
A fluid-powered energy conversion device (10) for converting energy in a moving fluid such as air into mechanical energy. A rigid cylindrical frame (11) includes an upstream annular chamber (12) and a downstream annular chamber (13), eac...  
WO2002040861A3
A fluid-powered energy conversion device (10) for converting energy in a moving fluid such as air into mechanical energy. A rigid cylindrical frame (11) includes an upstream annular chamber (12) and a downstream annular chamber (13), eac...  
WO/2002/097278A1
The invention relates to a stage housing (1) constructed from multiple metal sheets, in particular for centrifugal pumps. Said stage housing contains blades (3), whereby flow channels (5) that are delimited by the blades (3) are covered ...  
WO/2002/095230A1
A blood pump (35) has a bifurcated housing (50) which includes a first segment (51) bonded along an annular bonding seam at point (53) to a second segment (52). An elecgtromagnetically driven rotor (37) is separated from housing (50) by ...  
WO/2002/040861A2
A fluid-powered energy conversion device (10) for converting energy in a moving fluid such as air into mechanical energy. A rigid cylindrical frame (11) includes an upstream annular chamber (12) and a downstream annular chamber (13), eac...  
WO/2001/098667A1
A drainage pump capable of reducing operating noise, wherein a drainage straightening ring (30) is vertically provided on the outer periphery of the vanes (22) of an impeller (20) and on the outer peripheral edge of drain guide surfaces ...  
WO2001059303A3
A centrifugal pump comprising a cylindrical body (10) which contains a plurality of stages, the pump being obtained from the combination of the cylindrical body (10) formed by a segment of metal pipe, of diffusers (15) and impellers (16)...  
WO/2001/083996A1
A locking device for locking the stator pack of a pump (1) comprises shell means (2) suitable for containing pumping stages suitable for pumping a fluid, crown means (3) provided with connecting and fixing means (9) arranged for connecti...  
WO/2001/075264A1
A surface pump assembly having a pressure vessel containing a submersible pump (22) and an industrial motor (24) located at least partially external to the pressure vessel having a shaft or seal thrust chamber (26) extending at least par...  
WO/2001/065119A1
The invention relates to the design of a sinking centrifugal pump stage, in particular to the pumps used for the extraction oil and other liquid substances by means of a borehole. Said pump stage comprises an impeller fixed to a shaft an...  
WO/2001/059303A2
A centrifugal pump comprising a cylindrical body (10) which contains a plurality of stages, the pump being obtained from the combination of the cylindrical body (10) formed by a segment of metal pipe, of diffusers (15) and impellers (16)...  
WO2000042323A3
A water lifting machine has multiple facets which make it practical for use in rural and special applications. These facets include a frame on which a circular ring and a water tank are mounted in a manner in which the frame can be tippe...  
WO/2001/038117A1
The invention relates to a method for operating a refrigeration system, in particular an air-conditioning system for motor vehicles, according to which a pressure tube compressor (12) is provided as the compressor. This prevents pulsing ...  
WO/2001/033084A1
A vortex generating apparatus (60) has the capability of attracting and removably adhering one or more solid objects. The apparatus (60) comprises an impeller housed within a shell. The vortex attractor generates a vortical fluid flow (6...  
WO/2001/016491A1
A centrifugal pump (10), including a housing having a fluid inlet port (40) for receiving fluid at an initial pressure and an interior chamber defining a central axis. An impeller disk (16) defines first and second inlet areas (22, 24) a...  
WO/2000/059640A1
In a separation device for separating particles from a liquid, which is present in a container (1), a centrifugal rotor (7) is rotatable around a vertical rotational axis (R). The centrifugal rotor (7) has a tubular inlet member (8), whi...  
WO/2000/042323A2
A water lifting machine has multiple facets which make it practical for use in rural and special applications. These facets include a frame on which a circular ring and a water tank are mounted in a manner in which the frame can be tippe...  
WO/2000/037804A1
The invention concerns a device comprising a sealed body (2) and at least a wheel (10) mounted rotating in the sealed body (2), about a fixed axis of rotation (3) comprising at least a fluid intake (4) in its central part and a plurality...  
WO/2000/026542A1
The invention relates to a compensator modular unit for a multistage pump housing, ensuring as compensation device during hot or cold temperature shocks compensation of changes in length caused by said shocks.  
WO/2000/026541A1
The invention relates to a centrifugal pump and it's manufacturing process, more particularly to a pump formed by pressing and welding metal sheet. In this invention, comprising a pump casing, an impeller, labyrinth ring supports, labyri...  
WO/2000/007912A1
An apparatus for transporting particulate material includes a housing (112, 146, 147, 190, 200, 302, 720) having an inlet (114, 321-326) for receiving particulate material and an outlet (117) through which particulate material is dischar...  
WO/1999/048818A1
A method for impelling water in e.g. a lake (2) by with a pump (1) transforming the waves of the lake into whirling water (14) which is sent down towards the bottom (4) of the water area. The pump comprises a horizontally extending whirl...  
WO/1999/043959A2
A pump has a thrust bearing has a casing with an inlet port and a discharge port. A shaft is positioned within the pump. A thrust bearing is coupled to the shaft. A pressure alterable bearing cavity is located within the casing. The pres...  
WO/1999/037923A1
An insert (40) is provided for attachment to the inlet or nose of a pitot tube (10) to withstand the wear and damage imposed on the inlet of the pitot tube by high velocity and high pressure fluid moving through the rotary casing and int...  
WO1999027257A3
The present invention pertains to the construction of machines for the petroleum industry and more precisely relates to bore-hole multiple-stage pumps used for pumping a liquid from a geological layer. This invention can be used for incr...  
WO/1999/027257A2
The present invention pertains to the construction of machines for the petroleum industry and more precisely relates to bore-hole multiple-stage pumps used for pumping a liquid from a geological layer. This invention can be used for incr...  
WO/1999/025980A1
The weight and volume of a centrifugal fuel pump ideally suited for use in a fuel system for a turbine engine (12) may be reduced in a construction including a single shaft (10) mounting an inducing impeller (18), an impeller (22) for a ...  
WO/1999/022144A1
A centrifugal pump (10) of the pitot tube (24) type is structured with axially stabilizing elements which assist in stabilizing the pitot tube (24) assembly of the pump during high pressure operation conditions. The axially stabilizing e...  
WO/1999/019627A1
A lubricating system, preferably for smaller refrigerating machinery of piston compressor type (1, 2, 3) having a substantially vertically extending drive shaft (4). A disc-shaped member (11) is arranged adjacent to the lower part of the...  
WO/1999/017022A1
An annular flange member for connecting a fluid conduit to a fluid communication opening of the housing of fluid machinery, comprising an opening for communication of fluid to and from the above fluid communication opening, an inner surf...  
WO/1999/017024A1
A turbo type fluid machinery, comprising a housing, at least one impeller arranged rotatably around one axis of rotation in the housing, and a diffuser made of resin for setting a diffuser channel around the impeller, a supporting member...  
WO1998048167A3  
WO/1999/006711A1
The magnetic-drive assembly (40) has an axial bearing which is strategically located to minimize compressive forces on a primary shaft (14). The axial bearing (55) functions both as an ordinary thrust bearing and an inefficient impeller ...  
WO/1999/001663A1
A pump for transferring fragile and aggressive fluids such as human blood and comprising a chamber along with one or more fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and at least one outlet por...  
WO/1998/048167A2
Provided in accordance with the principles of the present invention, in one preferred embodiment, is a pumping system (90). The system includes a housing (108) rotatably supporting a tube (112), with a plurality of magnets (116) located ...  
WO/1998/046879A1
A pump (10) for transferring fragile and aggressive liquids such as human blood and comprising a pumping chamber (12) along with a pair of fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and one or...  
WO/1998/045599A1
The use of a working fluid that is subject to freezing is achieved in a fluid system including a rotating fluid management device (RFMD) (10) and a fluid flow loop (22) connected to the RFMD (10) and arranged so that the inventory of wor...  
WO/1998/007990A1
A pump apparatus for liquid driven by an exterior motor and having a substantially leak-proof operation comprising a pump casing (14) having an interior chamber (20) for receiving liquid therein, a rotor rotatably mounted for rotation in...  
WO/1998/000642A1
A rotary turbine apparatus which includes a separator having a rotating cylinder wall receiving a stream of liquid and gas for separating gas from liquid, the liquid collecting in a rotating ring on the wall, and comprising a scoop (14) ...  
WO/1997/029286A1
The invention relates to a centrifugal pump device, comprising a pump casing (1) having an inlet (2) and an outlet (3), an impeller device inside the casing (1) having one or more pump stages (5-7) with a common rotary shaft (4), and a n...  
WO/1997/008461A1
Modular-structure regenerative pump in which the sets of steps comprise a intermediate suction part (6), an intermediate delivery part (7), an impeller (10) and a casing (8, 9). In order to simplify construction, the intermediate suction...  
WO/1997/003291A1
A rotor (18) for use with a fluid flow generator or reactor, the rotor being intended to rotate about a central axis (19) and having a surface which defines an arcuate fluid pathway for fluid flow about the central axis about which the r...  
WO/1996/041082A1
A relatively power efficient, low flow-rate pump comprises an integral rotor-impeller on a hollow shaft which forms the rotational axis. The rotor-impeller is permanently magnetized with alternating poles about its periphery faces and at...  
WO/1996/034205A1
A medical pump apparatus including an internally sterile pumping chamber having a flexible diaphragm forming a wall portion and a drive rod extending through the diaphragm in a rotating vane disposed within the pumping chamber. A motor r...  
WO/1996/031438A1
The invention relates to a process for conveying liquids or liquids mixed with gaseous and/or suspended substances and for mixing a flow of liquid with a liquid and/or gas. According to the invention, a film of liquid adhering to an inne...  
WO/1996/031934A1
The invention concerns a rotary machine which comprises a driven rotor (2) and an electric motor (4, 14), with a stator (4) and a driving rotor. The stator (4) is also in the form of an electromagnetic bearing (4, 14) for the driving rot...  

Matches 301 - 350 out of 2,538