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WO/2012/084918A1 |
The invention relates to a pump device for operating vacuum drainage systems and for delivering waste water, especially in watercraft. The pump device comprises a drive device having a driving shaft which in turn comprises a first shaft ...
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WO/2012/045404A1 |
An inexpensive and simple-to-control solution for degassing liquid media is to be provided by way of a pump for delivering and degassing a liquid and having a pump housing with a pump inlet and a pump outlet, wherein a pump impeller whic...
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WO/2012/040752A1 |
The invention relates to a centrifugal pump for delivering a gaseous suspension, in particular a fibrous stock suspension, having a pump impeller (12) which has at least one opening (15) in the base plate and ribs (16) on its rear side, ...
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WO/2012/025156A1 |
For a garden pump, especially advantageous arrangements are specified as freezing-protection devices known in themselves in form of compressible bodies, wherein in particular two sub-chambers (VK, DR) of the pump interior separated in th...
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WO/2012/013030A1 |
A vertical self-priming pump includes a pump body (10), a motor (20) and a medium reflux blocking device (30). A middle division board (11) is provided in the pump body (10). A flow guide body (40) is fixed on the middle division board (...
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WO/2011/125413A1 |
Disclosed is a pump configured to introduce liquid from an introduction path to a pump chamber through vanes, wherein a foreign substance prevention portion configured to prevent a foreign substance that has been mixed into the liquid fr...
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WO/2011/091809A1 |
The invention relates to a garden pump arrangement comprising a centrifugal pump impeller. According to the invention, the rotational axis of the impeller is aligned vertically, the impeller chamber is positioned lower than the outlet co...
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WO/2011/065737A2 |
The present invention is a self-priming pump incorporating an impeller coupled to the shaft of a drive motor between a rear casing coupled to the drive motor and a front casing which has an intake hole and a discharge hole and is formed ...
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WO/2010/149455A1 |
The invention relates to a circulating system for food-compatible fluids, having a circulating pump (12) comprising a suction fitting (18) opening into a pump chamber (24) and a radial impeller (28) disposed in the pump chamber, characte...
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WO/2010/085840A1 |
Check valves for positive displacement pumps with an extended capacity to sealingly enshroud granules, and check vent valves with capacity to capture a quantity of fluid during a pump delivery stroke, and return that quantity of fluid to...
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WO/2010/057413A1 |
An automatic-control fluid jet guide lift pump comprises a fluid jet guide device (1) and a delivery pump (2). On the delivery pump (2) is installed a liquid lever sensor (3). The delivery pump (2) is provided with a gas outlet (4) on it...
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WO/2010/015650A1 |
A priming device (10) for electric pumps (11) comprising means for the automatic filling of the pump body (12) upon starting with liquid that originates from the same basin (13) from which the electric pump (11) is designed to draw when ...
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WO/2009/007075A2 |
The invention relates to a naturally-aspirated pump assembly which constitutes a series connection of a liquid ring pump, which operates as a rotating positive-displacement pump, and a normally-aspirated centrifugal pump, wherein the cen...
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WO/2008/114045A1 |
A dual pressure water pump (10) comprising a pump body (12), a low pressure impeller (16), a high pressure impeller (18), a pump priming system (20), a pump priming conduit (22) and a rear wear ring (24). The high pressure impeller (18) ...
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WO/2008/080437A1 |
A suction pipe for drawing in a fluid mix comprises an intake nozzle (10) which can be subjected to negative pressure for drawing in a second fluid (4), with at least one intake nozzle opening (20) open counter to a direction of intake f...
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WO/2008/062482A2 |
An arrangement for drawing fluid from a sump (10), comprising a pump (24), a draft tube (12) extending from the pump (24), into the sump (10), said draft tube (12) having an opening within the sump (10) and a canopy defined by roof and s...
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WO2008027495A9 |
Some embodiments of the invention provide a self-priming adapter system including a pump inlet receiving liquid mixed with air, a pump coupled to the pump inlet, and a self-priming adapter coupled to the pump. The self-priming adapter in...
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WO/2008/023515A1 |
A self-suction pump capable of stably discharging fluid to be transferred even if the fluid becomes a mixture of gas and liquid. A liner ring (50), which is in rubbing contact with an impeller (29) when it moves to the front side during ...
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WO/2008/021251A2 |
Flood water removal systems (10' ' ') including a motor (20), a vacuum generating device, a discharge pump (440), and a vacuum tank can be efficiently arranged to be transversely mounted to a vehicle. Certain flood water removal systems ...
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WO/2007/143994A1 |
There is disclosed a slurry tanker with a tank (1) having an feed line (48) with a filling pump (13) for filling with slurry for pumping the slurry from a container (16) to the tank, and a discharge line (49) with an emptying pump (2) fo...
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WO/2007/126759A2 |
A two-stage air powered hydraulic pump has a portion of the air pressure that operates the pump diverted directly to the reservoir. The air pressure on the reservoir presses hydraulic fluid in the reservoir out of the reservoir, through ...
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WO/2007/118525A1 |
The invention relates to an immersion pump having a housing which has a suction opening and an outlet opening and holds a motor and an impeller which can be driven in rotation by said motor, wherein liquid which is to be fed can be sucke...
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WO/2007/115673A1 |
In order to specify a centrifugal pump (1) having a centrifugal pump outlet space (6) and a centrifugal pump suction space (4) and also having an additional ventilation pump (3), which is preferably embodied as a vacuum pump, with a vent...
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WO/2007/039139A1 |
According to a first aspect of the present invention there is provided a liquid pump system having an inlet tube, an impeller extending into the inlet tube and able to rotate relative to the inlet tube, there being a passage extending th...
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WO/2006/136868A1 |
A wastewater lifting pump device comprising a sump with a reception space, an input part-unit and an output part-unit, where the output part-unit has a pump unit located in the reception space of the .sump and a transmission duct connect...
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WO/2006/112646A1 |
The present invention relates, in general, to a sludge pump for cutting off sludge and discharge the sludge and foreign substances, and more particularly, to the sludge pump for discharging not only the sludge but also liquid. The sludge...
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WO/2006/079274A1 |
The present invention discloses a vortex centrifugal constant pressure pump, which belongs to hydraulic mechanical and engineering facilities technical fields and can be applied to the case that it requires a constant output pressure for...
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WO/2006/010202A1 |
A pumping system in which a pump (5) is controlled by a programmed controller (22) is response to input signals from an inlet pressure transducer (3) and an outlet pressure transducer (15) and in certain circumstances inputs from various...
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WO/2005/045189A1 |
The aim of the invention is to improve delivery of the multi-phase mixture especially hydrocarbons from a well and to limit the free gas volume. According to the invention, a partial liquid flow (13) is branched off on the pressure side ...
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WO/2005/040616A1 |
A water-lifting pump device and an operation control method for the pump device, where a discharge valve and a non-return valve can be eliminated to reduce costs, and vibration and noise caused by a waterfall after a water lifting operat...
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WO/2005/035447A2 |
A two-stage sewage grinder pump (10) having two impellers (30, 32) and a grinder (60) attached to the motor shaft (24). Preferably, both impellers are vortex impellers and are positioned between the grinder and the motor. The motor housi...
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WO/2005/010374A1 |
A self-priming centrifugal pump comprises a pump housing (2) having at least one inlet (3) and one outlet (4) for a working fluid, an impeller (5) rotatably mounted in the housing (2) and mounted to a shaft (6) having a longitudinal axis...
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WO/2004/092590A1 |
The present invention discloses a vacuum water pump wherein an impeller (14) that is divided into a suction portion (16) formed in such a manner as to be in close contact with the inner peripheral surface of a tapered cover (8) and a dis...
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WO/2004/079195A2 |
A pump comprising an impeller chamber, an impeller attached to an adaptor shaft and being disposed in the impeller chamber. The adaptor shaft is rotatably held in an intermediate housing. A drive source is mounted on the intermediate hou...
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WO/2004/072484A1 |
The invention relates to a device for transporting fluids, in particular cutting fluids comprising residual matter from production processes. Said device is equipped with a vertical pump comprising a pump housing (14) and a pump impeller...
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WO/2004/055373A1 |
The invention relates to a water-bearing domestic appliance comprising a drainage pump (1) with a pump impeller (3) and to a drainage pump (1) with a pump impeller (3). The inventive drainage pump (1) comprises a separate chamber (6), wh...
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WO/2004/038228A1 |
Apparatus (1) for removing fluid from a surrounding area (3), comprising an inlet (5) through which fluid enters the apparatus (1), a primary vacuum fan (7) for creating a vacuum in the inlet to suck surrounding fluid from the surroundin...
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WO/2003/083310A1 |
The invention relates to a loading pump device on a tank vehicle (1) for loading same from a containing vessel, preferably situated at a lower level. The device comprises a centrifugal pump (3), driven from the tractor vehicle (2), which...
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WO/2003/078844A2 |
A self priming pump system that includes a motor (16) coupled to a centrifugal pump (12) for driving the centrifugal pump. A separator (10) having a reservoir (30) is provided for storing a limited amount of pumped fluid in advance of th...
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WO/2003/056185A1 |
The shaft (3) of the impeller (2) and the electric motor (5) is arranged vertically and the diffuser (14) is helicoidal and co-axial to the impeller shaft and electric motor, with the impeller and the diffuser remaining entirely below th...
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WO/2003/048582A1 |
The invention relates to a hybrid pump (1) with a housing (2) comprising at least one suction port (10) and at least one pressure port (11). A rotor (5) is eccentrically arranged in the housing chamber (3) which is substantially enclosed...
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WO/2003/027501A1 |
The fuel transfer pump (10) is a combination suction and pressure pump in a manifold (18) above the fuel storage tank (12). The fuel transfer pump (10) is contained within a manifold (18). The pump is liquid cooled (more specifically, fu...
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WO/2003/014572A1 |
A centrifugal pump for pumping a pulp suspension while simultaneously conducting gas away from the suspension, comprising a pump housing (10) with an inlet (11) and an outlet (12) for the pulp suspension and an impeller (14) mounted on a...
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WO/2003/014573A1 |
A priming vacuum control system for use on a self-priming pump includes a priming vacuum control valve and a priming vacuum control valve-actuating system. The priming vacuum control valve is disposed between a vacuum pump and a priming ...
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WO/2003/001065A1 |
A centrifugal pump comprising a pump body (1) housing an impeller (3) keyed onto a motor shaft (4) and provided with a suction mouth (7) and a discharge mouth (8) capable of being made to communicate with, respectively, a suction pipe (9...
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WO/2002/075047A1 |
A device for pumping a pulp suspension and simultaneous abduction of gas from the suspension. The device comprises at least one pulp pump (1) with a housing (2) with inlet (3) and, respectively, outlet (4) for the suspension and an outle...
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WO/2002/057635A2 |
A centrifugal pump (10) with facilitated self-priming, which comprises a casing (11) with a suction inlet (12) and a discharge outlet and with an internal series (14) of diffusers and impellers, which form a cylindrical assembly that for...
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WO/2002/004815A1 |
A self-priming pump capable of preventing a swirl flow from developing during the self-priming operation and assuring the smooth flow of a stream during the pumping operation, wherein a swirl flow forming space (15) allowing self-primed ...
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WO/2001/090581A2 |
A liquid manure tank truck (1) is equipped with a pipeline system (5) through which the tank (4) of the liquid manure tank truck (1) can be filled with liquid manure and emptied again. A pump aggregate (P) consists of a rotary pump (11) ...
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WO/2001/086831A1 |
A three phase power cable is employed to transmit data encoded in a phase-to-phase manner within a high frequency carrier signal transmitted simultaneously with power transmitted from surface equipment to downhole components. The high fr...
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