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WO/1994/018457 |
A submersible pump for pumping radioactive liquids comprises a pump cartridge (2) which is removably mounted in a cavity (3) formed in the pump body (1). Seals (30a, 30b) are provided between the cartridge (2) and the cavity (3). The car...
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WO/1994/017304 |
A centrifugal blood pump features a pump assembly (14) including a cylindrical barrel insertable into a motor stator (12). The barrel contains a motor rotor (58) which is directly coupled to the pump's impeller (40). The barrel can be or...
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WO/1994/014223 |
A bearing assembly (30) for an elongated motor having an anular stator with laminas and a segmented rotor. The bearing assemby being located between the rotor segments and including a sleeve (31) for supporting the shaft and a support po...
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WO/1994/013955 |
A fluid pump with a rotary impeller is disclosed which comprises an electromagnetically-driven, bearing-free, seal-free rotary impeller (16) levitated by localized opposed, magnetic forces and by fluid forces, or by localized opposed mag...
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WO/1994/011634 |
A fluid drive device with a hollow shaft (20) with impellers mounted either within the shaft or at the end of the shaft which drive the fluid through the shaft. Preferred embodiments include centrifugal pumps, in line pumps, bow thruster...
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WO/1994/009893 |
The invention concerns a submersible motor unit (1) designed to be secured in place on the floor of a liquid-filled container (2) and which has a specific gravity which is lower than that of the liquid concerned. Coupling elements (7, 8)...
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WO/1994/010449 |
In the state of the art, sludgers for pumping visquous fluids in which a lower viscosity solvent liquid is added to the fluid are filled with the visquous fluid when they are sunk into the borehole. In order to start the sludger, therefo...
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WO/1994/009274 |
A sealless centrifugal blood pump (10) is provided in which a rotatable impeller (64) is supported in a pump housing (12) by fluid bearings (30, 182) during operation. Rotational movement of the impeller (64) is accomplished with an inve...
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WO/1994/006486 |
A heart pump (1) having a housing (2) with a central longitudinal axis, inlet means (203) and an outlet means (201) is disclosed. A stationary shaft (4) extends axially within the housing (2) and the means (16, 17) are provided for suppo...
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WO/1994/005914 |
Pumping action is performed by a unitary, sealed, easily replaceable pumping element, comprising a housing (10) with a longitudinal axis, a pumping chamber at one end of the housing, an outlet (22) in a wall of the pumping chamber, an in...
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WO/1994/004789 |
A pump system is disclosed for downhole use. The pump system comprises a first pump (16) and a second pump (46) in end to end relationship and the pumps are remotely and independently actuable.
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WO/1994/003731 |
A centrifugal pump (10) for pumping biological fluids such as blood includes a housing (12) which defines a pumping chamber (36). The pumping chamber (36) encloses an impeller (14) mounted on a spindle (16). The impeller (14) carries cou...
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WO/1993/020860 |
Apparatus and method for pumping blood and other delicate fluids. The apparatus includes a rotor (12) having an impeller (18) which includes an upper section (22) and a lower section (20) with oppositely disposed surfaces (26, 28), the u...
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WO/1993/017484 |
A pump specially designed for aggressive or environmentally hazardous materials contains a pump wheel, the shaft (8) that carries the pump wheel, and the rotor (12) of an electromotive drive (4) inside a hermetically sealed housing (10)....
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WO/1993/016284 |
The proposal is for an assembly for conveying a liquid medium, especially a heat carrier, in the cooling and heating circuit of a motor vehicle. The conveyor assembly has an electric drive motor (36) comprising a collector (52) and brush...
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WO/1993/014553 |
A device comprising an electromagnetic motor with a moving permanent magnet (15) having two plane parallel surfaces on at least one of which at least one series of poles with identical signs is provided. The poles are movable in the air ...
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WO/1993/014450 |
A device is disclosed for regulating the flow rate of a fluid circulated in a closed network of pipes by a centrifugal pump, in particular for regulating the circulation of water in a heating system. In order to adapt the regulator to th...
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WO/1993/014319 |
A pump comprises two discrete series (13, 15) of pumping stages, the first having a lower liquid output than the second. The liquid is recirculated from a processing enclosure (5), in particular using reverse osmosis, nanofiltration or t...
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WO/1993/011998 |
A driving shaft (10) is disclosed for a hydrojet having a stator (21) and a rotor (20) enclosed in a housing (18, 19) with an inlet and an outlet nozzle. The bearing located upstream is designed as a force transmission member (K) that al...
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WO/1993/010915 |
A device at a high pressure spraying apparatus incorporating a liquid motor (6), which via a common shaft (5) drives a pump wheel (11), and where an entering liquid flow before the liquid motor (6), in a division chamber (2) is divided i...
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WO/1993/010361 |
An electrohydraulic machine for generating a force on a vertically movable piston rod (5) linked to the piston (4) of a cylinder (3) has a first centrifugal pump (17, 18) arranged in the part of the cylinder (3) opposite to the piston ro...
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WO/1993/007391 |
A pump comprises a housing (28) with a hollow rotor (21) within the housing and means (22) for feeding driving fluid to the rotor interior. The rotor (21) is provided with nozzles (24) forming jets of driving fluid supplied from its inte...
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WO/1993/007393 |
An electrical downhole centrifugal pump for pumping fluids from a deep well includes a relatively small diameter pump housing which is suspended from a tubing string and including a series of impellers and diffusers. The impellers are mo...
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WO/1993/007388 |
A fluid pump (10) with rotary impeller (68) is disclosed which comprises an electromagnetically-driven (30), bearing free, seal-free rotary impeller (68) levitated by localized opposed, repulsive, permanent magnetic forces (60, 64) only....
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WO/1993/000260 |
A pump (7) is submerged in the cargo medium (8) in a ship's tank (9) for circulation of the cargo medium (8) through a cargo refrigeration arrangement (15, 16) which is submerged in the cargo medium. Rotor (14) of the pump (7) and drive ...
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WO/1992/020926 |
A pump comprises a casing (1), a rotor (2) mounted in the casing (1) and a means for transmission of the torque to the shaft (4) of the rotor (2) from the shaft (10) of a rotation drive (9). The means for transmission of the torque consi...
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WO/1992/018774 |
The invention concerns a compact-design pump which is hermetically sealed to the outside and has no shaft lead-outs. The pump has a housing with an internal partition which divides the inside of the housing into a drive section and a pum...
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WO/1992/016042 |
The invention concerns a power-generator unit comprising a drive motor and a generator, intended in particular for motor vehicles, a coolant pump on a shaft being fitted between the generator and drive motor. The shaft is preferably desi...
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WO/1992/014928 |
A motor/blood pump which axially pumps blood to a patient connected to a heart/lung machine includes a cylindrical pump housing (21), a rotor (10) located in the housing, at least one impeller blade (44) attached to the rotor (10), a pai...
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WO/1992/013196 |
Described is a rotary pump (1) for conveying gases or liquids in transmission devices and units. The pump has standard diameter, width, and fits and clearances characteristics, which are matched to those of roller bearings. The pump is m...
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WO/1992/013243 |
A thermoelectic system (10) comprises a thermoelectric module (12), volume defining manifolds (14) attached to opposed faces of the module (12) and pump means (44) for circulating fluid from remote heat exchangers (46) to the manifolds (...
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WO/1992/008627 |
The disclosed pump is comprised of a shell (E) coupled to a container (DP) of washing liquid (L), the shell (E) being formed by a body (CB) and by a lid (TC) coupled to each other. The body (CB) forms a tubular section extension (1), a c...
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WO/1992/006301 |
An integrated centrifugal pump and motor is provided by an impeller disk which contains permanent magnets and functions as the rotor for a brushless DC motor. The rotor is supported by non-contacting radial bearings and is hydrodynamical...
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WO/1992/006300 |
Centrifugal motor-driven pump provided with an impeller rotationally mounted with limited mobility on one end of the rotor shaft of an electric driving motor, which pump is characterized in that it is provided, between the shaft (20) of ...
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WO/1992/006297 |
A fluid pump (10) with rotary impeller (16) is disclosed which comprises an electromagnetically (30) driven rotary impeller levitated by localized opposed fluid forces. Levitation by localized opposed fluid forces (52) of an impeller dri...
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WO/1992/005402 |
An apparatus for measuring change of position of a rotor in a drive system comprising a drive rotor and a driven rotor generally concentrically mounted with respect to the drive rotor, the drive and driven rotors being magnetically coupl...
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WO/1992/003659 |
A system for simultaneously degassing and pumping a liquid from a source includes in combination a gaseous liquid source (2) having a feed inlet (3) for the liquid so as to form a liquid surface at a first level; a degassing pump (5) for...
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WO/1992/001298 |
A recirculation system (10) is disclosed for driving reactor coolant water (114), contained in an annular downcomer (118) defined between a reactor vessel and a reactor core spaced radially inwardly therefrom. The system includes a plura...
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WO/1992/001293 |
A recirculation system (10) is disclosed for driving reactor coolant water in an annular downcomer (118) defined between a reactor vessel and a core shroud (12) spaced radially inwardly therefrom. The system supplies feedwater to the ves...
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WO/1992/001295 |
The wetwell space in a suppression pool (26) of a nuclear reactor containment is continuously ventilated by exhausting gas therefrom, while at the same time, during normal system operation atmospheric air from a source of same is admitte...
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WO/1992/001296 |
A method and system (10) for controlling nuclear reactivity in a nuclear reactor are disclosed. The method includes maintaining a nuclear poison solution at an initial poison pressure (P1) less than the steam pressure within the reactor ...
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WO/1992/001142 |
A coolant pump system (10) driven by an electric motor (16) mounted in-line with the pump shaft (196) to the pump housing (12). The system minimally includes a pump body (192) having a bore (200) therein, a coolant pump impeller (194), a...
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WO/1992/001299 |
Fuel bundles of a boiling-water nuclear reactor are inverted during refueling methods. Bundles burned in a first orientation are subjected to greater burnup near their bottoms and greater conversion of fertile fuel to fissile fuel near t...
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WO/1992/001289 |
A reactor core (104) includes upper and lower matrices of fuel bundles. Fuel rods in the upper matrix (126) have their plenums oriented upward, while fuel rods in the lower matrix (124) have their plenums oriented downward. Refueling inv...
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WO/1992/001297 |
A boiling water nuclear power plant (100) includes a reactor core isolation cooling (RCIC) system in which a turbine (146) used to pump feedwater to the reactor also drives a generator (200). The generator (200) is used to drive RCIC com...
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WO/1992/001291 |
A reactivity control system includes a reservoir (42) containing a liquid nuclear poison (44), at least one stationary, hollow control blade (32) extending vertically into a reactor core (14), and a poison conduit (52) disposed in flow c...
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WO/1992/001292 |
A drive (10) for positioning a control rod (12) in nuclear reactor core (104) is disclosed. The drive includes a turbine rotor (34) joined to hollow spindle (26) in a housing. The spindle has a piston (82) disposed therein and a piston r...
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WO/1992/001290 |
In accordance with the present invention, a nuclear reactor (100) with a recirculating heat transfer fluid has a bi-level core which provides enhanced flexibility in fuel arrangement. The bi-level core (104) includes two sets of fuel uni...
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WO/1992/001294 |
A drive (10) for positioning a control rod (12) in a nuclear reactor is disclosed. The drive (10) includes a housing (112) having a piston disposed therein, with a piston rod extending from the piston and through the housing for being jo...
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WO/1992/000438 |
In a subsea pumping system, an electrically powered pump unit (23) is run and retrieved through an X-mas tree (10) in a subsea installation by means of tubular conductor piping (22) by which the pump unit is energized.
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