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WO2000057056A9 |
A pump assembly and related components for pumping water, sewage or other pumped material from one location to another are disclosed. The pumping system includes a motor (534) coupled to a centrifugal pump and a separator defining a rese...
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WO/2001/002732A1 |
A high performance and general purpose pump device capable of not only continuously sucking and transporting even a liquid containing a large quantity of air bubbles but also providing a high degree of defoaming action, degassing action,...
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WO/2001/000994A1 |
The invention relates to a pumping device for several different, relatively volatile vehicle fuels, comprising a number of pump units (1) each having a closed pump housing (5) with an intake (6) connected to a supply of one of the vehicl...
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WO/1999/066209A1 |
A centrifugal pump for pumping a pulp suspension where the pump comprises a housing (10) with an inlet and an outlet for the pulp suspension, and an impeller on a rotary shaft (13) with pump blades (15) extending from a hub (16) outward ...
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WO/1999/053203A1 |
A circumferential flow type liquid pump wherein a degassing passage (31) opened in a stepped portion-carrying state in a bottom wall portion (10) and extending radially inward is formed in the vicinity of an impeller (4) in an inner circ...
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WO/1999/018356A1 |
The invention relates to a delivery pump (2) for delivering fuel in a motor vehicle, comprising an impeller (7) with blade chambers (10, 10a, 11, 11a) which are delimited by guide blades (12, 13), and channels (14, 15) in the shape of in...
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WO/1998/023864A1 |
The invention relates to a diffuser and conveyor device (2, 102, 202, 302) for a single-impeller centrifugal self-priming pump, with conveyor channels (15, 115, 215, 315) radially located outside the diffuser (13, 113, 213, 313) and insi...
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WO/1998/015738A1 |
The invention is concerned with a procedure for use with a pump (6) for the movement of liquid, powered by an internal combustion engine, which pump is not capable of pumping air (gas) and thereby drawing liquid up into itself at start-u...
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WO/1998/006947A1 |
The present invention relates to a high-pressure centrifugal and submersible electrical pump which is particularly intended for pumping crude oil from wells having a low output and a high gas factor. A pipe (11) is mounted in the lower s...
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WO/1998/004833A1 |
A self-priming type centrifugal pump apparatus which is capable of performing suction transport of even a liquid containing viscous and bubbly sludge and solid foreign matters, affords full automatic operation by preventing invasion of t...
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WO/1997/036044A1 |
A method and a device for degassing a gas-containing fluid medium in connection with the pumping of the medium by a centrifugal pump (6, 21, 29) which is designed for gas separation, where the gas is evacuated by the suction effect from ...
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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...
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WO/1997/009482A1 |
The invention relates to a centrifugal suspension pump with gas separating means, comprising a pump wheel (3) with a hub (27), pump vanes (30) in a front pump chamber part (4A) facing the inlet, pump vanes in a rear pump chamber part (4B...
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WO/1997/008459A1 |
An improved electrical submersible pump is disclosed in which a processor (37) downhole is utilized to monitor one or more subsurface conditions, to record data, and to alter at least one operating condition of the electrical submersible...
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WO/1996/039583A1 |
The present invention relates to a method of controlling the function of a centrifugal pump and vacuum pump combination, and a gas-separating centrifugal pump. The method according to the invention is characterized in that the gas flow i...
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WO/1996/032591A2 |
The present invention relates to a device for pumping a moist pulp and may be used in the wood-pulp and paper industry for conveying a highly concentrated pulp. The proposed pump comprises a body (1) having a hopper (2) for receiving a p...
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WO/1995/030092A1 |
The invention concerns a self-priming, multi-stage centrifugal pump (6) having a chamber (15) which is disposed externally of the housing (9) accommodating the pump stages (1 to 5), said chamber containing fluid to be delivered. The cham...
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WO/1995/018337A1 |
In a vehicle heating appliance, water is pumped as heat transfer medium through a heat exchanger (2) that surrounds the combustion chamber (B). The water pump (6) is mounted above the heat exchanger (2) and pumps the water it axially rec...
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WO/1995/012760A1 |
A self-sucking centrifugal pump capable of displaying excellent self-sucking and pumping performance without changing the shape of a volute type centrifugal pump which already has a nearly perfect shape. The basic principle of a self-suc...
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WO/1995/006188A1 |
Fluid transfer apparatus comprising a fluid reservoir (11) and a pump (16) connected to the reservoir by a supply line (12), wherein the apparatus is configured so that vapor generated in the pump during periods of inoperation may escape...
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WO/1995/004224A1 |
A novel centrifugal pumping system is disclosed for supplying fuel to aircraft gas turbines. The system has a common rotor (12) with two different sets of impeller blades on opposite sides. A regenerative liquid-ring starting pump (18) i...
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WO/1995/002768A1 |
Proposed is a pump with an impeller (1) which is securely mounted by its boss (3) on a shaft (4) so that it cannot rotate. The rear (driven) edges of the impeller rotate, leaving a narrow clearance (a), over the rear wall (5) of the pump...
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WO/1994/008176A1 |
A lubrication system comprising a first pump (2) to deliver lubricating oil from a reservoir (1) to equipment to be lubricated (9), a second pump (11) to return lubricating oil from the equipment (9) to the reservoir (1), and characteris...
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WO/1994/007031A1 |
Sectional-casing-design rotary pump in which the casing sections (8, 9) have a cylindrical outer casing and internal wall sections (12-15) in one piece therewith. The outer casing of at least one casing component (8, 9) consists of an ou...
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WO/1993/014336A1 |
A valve element used in pumps consists of a resilient strip (7) which is embedded on one side and has increasing flexibility from the embedded side towards the opposite side.
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WO/1993/013318A1 |
Multiphase fluid is subjected to pumping or compression or to centrifugal separation after undergoing at least partial separation in a cyclonic separator device (20; 60). The cyclonic separator device can be incorporated in a rotary pump...
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WO/1993/011360A1 |
A centrifugal pump having a diffuser (1) engaging with a rotor (25), a suction body (2) and a delivery body (3) fixed to the upstream and the downstream ends (1a, 1b) of the diffuser respectively and provided with corresponding suction a...
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WO/1992/018775A1 |
The multi-stage rotary pump proposed has a first normally priming rotary-pump stage and subsequent self-priming stages. In order to improve the self-priming capability and waste-escape security of the pump, in particular when fluids are ...
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WO/1992/011458A1 |
A pump for pumping pulp, comprising a first impeller (12) for pumping the pulp in fluidized state, and a gas evacuation pump (23) of liquid ring type comprising a pump housing (24) with a chamber (25) and a second impeller (26) rotating ...
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WO/1992/003659A1 |
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/1992/001298A1 |
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/1992/000449A1 |
The proposal is for an assembly for feeding fuel from the fuel tank (10) to the internal combustion engine (18) of a motor vehicle. The feed assembly (12) comprises a feed pump arranged in the fuel tank and taking the form of a full-flow...
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WO/1991/013258A1 |
A self-priming device for pumping a carrier fluid from a first to a second enclosure (5), comprising a (depression effect) self-priming pump including an endless screw (1) attached to a core (30) in order to form threads which define a s...
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WO/1991/007592A1 |
The problem of space and weight limitations for liquid ring pumps and regenerative pumps in aerospace applications is solved by a pump having a housing defining a first chamber (22) and a second chamber (24) independent of the first cham...
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WO/1991/006778A1 |
A regenerative pump (1) and method of discharging pressurized fluid therefrom wherein direct flow of pressurized fluid from side channels (10, 11) of the pump into discharge ports (16, 17) of the pump is blocked by walls (18, 19) of the ...
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WO/1986/000951A1 |
Apparatus (42, 72) for filling a hose (36) with water (12) and simultaneously for expelling air from the hose while connected to the vacuum side of a pump (20) in preparation for cleaning debris from a swimming pool (10) without loss of ...
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JP2024048922A |
The present invention provides a pump casing and a self-priming pump that can shorten self-priming time. A pump casing according to an embodiment has a separation chamber and forms a pump chamber in which an impeller is disposed, and inc...
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JP2023177876A |
To provide a water supply system that can reduce noise and vibration and is excellent in maintainability.A water supply system includes: a flow passage base integrally including a flow passage part constituting a flow passage, a pump cas...
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JP2023164566A |
To provide a self-priming pump improved in assemblability.A self-priming pump 1 includes an impeller 2, a motor 3 driving the impeller 2, and a casing 4 housing the impeller. The motor 3 includes: a stator 5; a stator mold 8 covering the...
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JP7373731B2 |
To provide a self-priming pump reducing vibration caused when the blade of an impeller passes through the vicinity of a circulation hole.A self-priming pump 1 includes an impeller 2, a motor 3 driving the impeller 2, and a casing 4 housi...
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JP2023028399A |
To provide a pump unit that can prevent scale from being fixed.A pump unit includes: a pump device; a priming device connected to a flow channel of the pump device and including a priming water tank for storing priming water to be suppli...
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JP7224773B2 |
To provide a self-priming pump that can shorten self-priming time.A self-priming pump according to an embodiment comprises: an impeller comprising a first shroud capable of rotating around a predetermined rotating shaft and comprising a ...
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JP2022180804A |
To provide a high-pressure sprinkler which is so small-sized as to be used as DC brush-less motor usable at AC 100 V of domestic power supply and can satisfy all of output, operation convenience and durability upon a job site.A high-pres...
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JP2022175299A |
To provide a pump device capable of replenishing air without restricting operation of a pump.A pump device of the present invention comprises an air replenishment device. The air replenishment device comprises: an air replenishment valve...
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JP7170186B2 |
To provide a flow switch in which a surface area of a water receiving part of a paddle is enlarged relative a water flow to enable the flow switch to start at a small flow rate, and to provide an electric pump provided with the same.A fl...
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JP2022155800A |
To provide a drainage system having high drainage capability even in a limited space, and a method for controlling the drainage system.A drainage system includes a plurality of suction pipes, a plurality of pumps having one end respectiv...
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JP2022155926A |
To provide a drainage pump station in which multiple pump facilities are disposed in a limited space of the drainage pump station and which achieves space saving of an installation area when a horizontal shaft pump is adopted as a draina...
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JP2022155803A |
To provide a drainage system capable of filling the interior of a pump with water even when piping on a discharge water tank side is not submerged, and a method for controlling the same, and a method of manufacturing the same.A drainage ...
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JP7132877B2 |
To improve operation characteristics upon water discharge.A horizontal shaft pump 10 comprises: a pump casing 12; a main shaft 20 having a first end 20a provided inside the pump casing 12 and a second end 20b provided outside the pump ca...
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JP2022121852A |
To provide a pump device capable of suppressing dropped water from a check valve to a water source side to obtain stable self-priming performance.A pump device 100 in which an impeller 5 connected to an electric motor 1 is housed in a ca...
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