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WO/2005/066501A1 |
The sealing surfaces, which are provided between a somewhat wavy, surrounding rotor collar (120) of a rotor rotating inside a pump, and the inner walls of a slot-like opening, which is provided in a slide (182) that can be displaced insi...
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WO/2005/066496A1 |
The invention relates to a pump (10) comprising a rotor (70) whose collar (120) laterally describes a pump channel (124) provided with an input (152) and an output. An axially adjustable sealing disc (182) is tightly placed on two sides ...
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WO/2005/042910A2 |
The inventive stator includes a helical cavity (310, 410, 510) component made from a material chosen to reinforce an elastomer liner deployed thereon. The contouring of the elastomer liner (312, 412, 512) is asymmetrical, such that the e...
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WO/2005/039859A1 |
The invention relates to a gear pump which is suitable for delivering highly viscous materials. The aim of the invention is to provide a gear pump having a low-wear and low-maintenance bearing system, high output and good self-cleaning p...
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WO/2005/001289A2 |
The invention relates to a pump, for example, a vane-cell pump or a roll-cell pump, especially a gear pump, comprising a two-stroke pump contour which comprises at least one mounting area, at least one large circular area, at least one d...
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WO/2004/090330A2 |
The invention can be used for pumping out fluid from deepest holes. Each sleeve (4) of the inventive screw pump which is arranged prior to said screw-casing pair in a liquid flow direction comprises two oppositely disposed screwed holes ...
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WO/2004/081347A1 |
The invention relates to gerotor hydraulic units for petrol and gas wells and can be used for general-purpose hydraulic motors. The inventive rotor consists of a blank rotor (1) provided with external helical teeth (2) which have convex ...
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WO/2004/076858A2 |
An oil well pumping apparatus (10) for pumping oil from a well to a wellhead (120) provides a tool body (15) that is sized and shaped to be lowered into the production tubing string (12) of the oil well. A working fluid is provided that ...
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WO/2004/064992A1 |
The invention relates to a dividing device, comprising an outer housing with an inlet and at least two outlets, at least two pump chambers placed adjacently of each other in the outer housing, each with a pump chamber infeed connected to...
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WO/2004/053333A1 |
The invention relates to a single-flow type two-spindle screw pump comprising an outer bearing (4) for the two spindles (1, 2), a pump housing (3) that encloses at least the two spindles (1, 2) and thereby forms the conveying chambers (1...
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WO/2004/048781A1 |
Apparatus for dispensing beverages formed by mixing carbonated water and a flavoring syrup are described. Dispensing takes place via a pump which is driven by the carbonated water under pressure and which has a pumping chamber adapted to...
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WO/2004/045749A1 |
A pump system for tangential flow or crossflow liquid filtration systems, such as reverse osmosis, nano, and micro filtration systems, that independently fixes the fraction of product water produced for each stage and recovers a fraction...
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WO/2004/033187A1 |
The invention concerns an extruder/gear pump assembly (10) comprising an extruder screw (20) connected to the gear pump (14). The invention is characterized in that the relative speed of the extruder screw (20) and of the gear pump (14) ...
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WO/2004/018879A1 |
The present invention relates to a vacuum pump and a method of starting a vacuum pump. The vacuum pump includes a pump rotor (1) rotatably disposed in a casing (2), and a pump-rotor controller (15) for controlling rotation of the pump ro...
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WO/2004/015268A2 |
A pump assembly for dough-like material wherein a roll feeder (12) delivers the material, under pressure, to a progressing cavity pump (14). In that process, the roll feeder also de-airs the dough. In preferred embodiments, the progressi...
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WO/2004/013386A2 |
The invention relates to a device and method for injecting a liquid colour into a polymer melt, for which a dosing pump with a dosing inlet and a dosing outlet is provided. The dosing inlet is connected to a tank and the dosing outlet to...
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WO/2003/100257A1 |
A pump comprises multiple, axially stacked positive displacement fluid device sections, such as circumferential piston pumps having chambers and contra-rotating chambers. The device can be similarly employed as a fluid motor. The stacked...
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WO/2003/087989A2 |
The invention is directed to a foam dispensing system, and more particularly to an automated monitoring and diagnostic system for use with foam dispensng systems that permits remote control of the dispensing foam. A control console (Figu...
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WO/2003/083306A1 |
A positive-displacement pump, in particular for use in machines for dispensing fluids, comprises two elements that are rotatable with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted i...
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WO/2003/054393A1 |
The invention relates to a feed pump for delivering fluid media, wherein the pump bearings are lubricated by the feed medium itself. Connecting channels with valve devices are provided on the suction side and on the pressure side upstrea...
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WO/2003/050418A1 |
The invention relates to a feed pump for fluidic media, comprising a displacement body that is mounted in a pump housing and equipped with slide bearings and connecting channels that connect the slide bearings to the product channel on t...
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WO/2003/029610A1 |
A downhole multi-phase twin screw pump (10) for use in wells having a high gas content. There is a supplementary liquid channel (22, 122) in a housing (12) of the pump in fluid communication with a pumping screw near an intake end (14) o...
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WO/2003/016720A1 |
The invention relates to a gear pump that is intended, in particular, for rubber mixtures. The inventive pump comprises a housing (12) containing a rotating gear wheel assembly consisting of a central gear wheel (4) which co-operates wit...
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WO/2003/006348A1 |
The invention discloses a screw conveyor for the transport of flowable substances and/or lumps of material, comprising a rotatable first screw (1) provided with helical windings (2) arranged in a housing (3) with an inlet opening and an ...
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WO/2002/091028A2 |
The present invention relates to the use colloidal particles to realize photonic and microfluidic devices. In particular embodiments, colloidal particles are used to realize microfluidic a two-way valve, three-way valve, check valve, thr...
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WO/2002/086322A2 |
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...
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WO/2002/084122A2 |
This invention relates to expansible chamber positive displacement pumps, motors, and engines and includes variable displacement features. It provides a different method of making vane, piston, and roller abutment pumping devices which h...
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WO/2002/081922A2 |
A screw conveyor for the transport of flowable substances and/or lumps of material comprises a rotatable first screw (1) provided with helical windings (2) arranged in a housing (3) with an inlet opening and an outlet opening. The housin...
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WO/2002/079662A1 |
A drive system is provided for coupling a clutch assembly with a pump assembly that provides fluid power to cool, lubricate and control the operation of the clutch. The drive system comprises a drive coupling rotatably supported on an in...
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WO/2002/077451A2 |
The invention relates to a positive-displacement pump, consisting of an electric motor (1), a connecting housing (2) and a pump head (3) with pump gears mounted therein. In the present embodiment, the pump is configured as an external ge...
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WO/2002/070231A1 |
The invention relates to a screw pump comprising an inlet cross-section and an outlet cross-section for conveying free-flowing media, in particular plastic melts and rubber blends. Said pump comprises two screw shafts (20, 21), having a ...
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WO/2002/070897A2 |
A vane pump (1) is provided comprising a housing (6, 30) having an inlet (7) and an outlet (8) with a hollow rotor and vane mechanism (9) therebetween. The vanes (12) are confined to movement radially in an out of the rotor (10) accordin...
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WO/2002/057631A2 |
The invention relates to a method for producing, adapting and/or adjusting at least one bearing in a fluid mini- to micro-component (M) comprising a stator (30) and at least one rotor (40, 2). Said rotor is rotatably positioned on the at...
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WO/2002/018792A2 |
A system and method for transporting high-viscosity, high-solids, dewatered materials essentially includes a progressing cavity pump system utilizing a twin-screw feeder with an extended tunnel section. The feeding of the material into a...
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WO/2002/002948A1 |
The invention relates to a comminutor pump for delivering sewage water that contains solid matter, which is configured as a rotating displacement pump. The pump comprises an electric motor and a pump case, a fixed pump stator and an ecce...
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WO/2002/001072A1 |
The invention relates to a gear pump, comprising a housing (1) and gear rotors (2, 3) disposed therein. Said gear rotors are received by bearing sections (15 to 18) of slide bearings (11 to 14) that are lubricated by the conveyed medium....
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WO/2001/092673A2 |
A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a string of modular pipe assemblies having one or more passages for carrying pr...
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WO/2001/092684A1 |
A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a string of modular pipe assemblies having one or more passages for carrying pr...
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WO/2001/086150A1 |
The invention concerns a metering gear pump comprising a set of gears (3) supported and guided solely by the inner peripheral surface of the lobe of the chamber (110) wherein they are housed. They do not comprise any shaft to act as supp...
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WO/2001/078967A1 |
An extruder for polymeric or elastomeric material includes a gear pump having a casing (1) in which a pair of toothed gearwheels (20, 21) rotate, a feed inlet (24) for feeding material into an intake nip between a gearwheel (20) and the ...
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WO/2001/071191A2 |
A progressive cavity pumping system includes a pump housing, a rotor member operatively received in the pump housing, a prime mover coupled to the rotor member for driving the rotor member in first and second directions and a controlling...
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WO/2001/048382A1 |
The invention relates to a pump body (10) used in a medical gear-pump for suction and irrigation. Said pump body comprises a pot-shaped pump housing (12) with two cylindrical openings (18, 20) that accommodate two meshing gear wheels (30...
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WO/2001/027476A1 |
The invention relates to a high pressure cleaning device comprising a motor driving an internally toothed gearwheel pump for supply of a cleaning fluid, under high pressure, to an outlet device. Said internal tooth gear and/or an externa...
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WO/2001/006095A2 |
A turbine system (10) has a turbine (12) that uses an aeromatic hydrocarbon as a working fluid (18). The turbine discharges the fluid in vapor form against a boundary layer on the inside of a rotor (166) where it condenses as it loses it...
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WO/2000/079132A2 |
There is disclosed an improved pump (5, 5') particularly suitable for use in a method of 'artificial lift' in an oil/gas well. Known pumps used in artificial lift methods suffer from a number of problems/disadvantages - e.g. low efficien...
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WO/2000/063529A1 |
There is disclosed a pump and pumping system for pumping dense phase gases, specifically for injecting carbon dioxide into an oil or gas reservoir that includes a pump, a motor, and a casing in which the pump and motor reside. There is a...
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WO/2000/055505A1 |
The invention relates to a comminuting pump for delivering sewage water that contains solid matter which is configured as a rotating positive-displacement pump, preferably as an eccentric screw pump (1). The pump comprises an electric mo...
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WO/2000/034554A1 |
The invention relates to an extrusion pump for conveying a liquid polymer melt. A drive shaft (3) is provided for driving the conveying means, which are embedded in a pump housing (1). Said drive shaft (3) penetrates the pump housing (1)...
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WO/2000/031417A1 |
A downhole pump system (10) which allows the pump unit (21) to be retrieved and re-installed through the production tubing (18) while leaving the tubing (18), electrical cable (19), and the remainder of the components of the pump system ...
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WO/2000/025025A1 |
The invention relates to a submersible pump assembly which comprises a housing (12) filled with lubricating fluid. In said housing, a first shaft (14, 102, 120) is mounted on bearings which has a first surface area (15), a first end area...
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