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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/2004/038220A1 |
A fluid supply unit (1), in particular a hydraulic supply unit is disclosed, comprising a pressure generator (2) for the fluid, in particular a pump for hydraulic fluids and a pressure outlet (7). The aim of the invention is to broaden t...
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WO2003083311B1 |
A motor pump (10) includes a pump head (22) for pressurizing a fluid and an electric motor for driving the pump head. Within the pump head, radial forces produced in two symmetrical pumping zones are balanced against each other to reduce...
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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/2004/007964A1 |
The invention relates to a rotary screw machine of volume type comprising a body (30) having a main axis X, two members (10, 20), wherein a first one (20) surrounds a second one (10). Said first member (20) is hinged in said body (30) an...
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WO/2004/007963A1 |
A rotary screw machine comprising both an enclosing (1, 2, 4, 5) and an enclosed screw element (2, 3, 5, 6) having respective profiled inner (101, 102, 104, 105) and outer surfaces (202, 203, 205, 206) is constructed in such a manner tha...
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WO/2004/007962A1 |
A rotary screw machine with outer enclosing (11) and inner enclosed (15) screw elements set one in the interior of each other comprises at least two rotors (15, 13) which are directly driven by a driving means (8) into rotation. The roto...
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WO/2004/007968A1 |
A rotary screw machine comprises an outer enclosing screw element (1) having a profiled inner surface (101), an inner enclosed screw element (19) having a profiled outer surface (219) and at least two intermediate screw elements (2,18) w...
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WO/2004/007965A1 |
In order to more effectively use the constructional volume of a volume screw machine of rotary type, a plurality of sets (80, 70; 60, 50) of female elements having an inner screw surface and of male elements having an outer screw surface...
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WO/2004/007967A1 |
A rotary screw machine comprises an outer enclosing element (1, 101) having a profiled inner surface (201, 1201), an inner enclosed screw element (4, 104'), having a profiled outer surface (104, 1104) and intermediate screw elements such...
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WO/2003/106237A1 |
The invention relates to a motor/pump unit, especially for antislip automotive brake systems, comprising a receiving body (3) for hydraulically active components, an internal geared wheel pump with pump components comprising a pinion int...
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WO/2003/102417A1 |
Disclosed is a four-in pump which includes: a gear box (21) being arranged between a first and a second cylinder blocks (100 and 200), a gearing means (1) arranged within the gear box (21) being connected with a driving shaft (13) of a m...
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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/2003/098016A1 |
A counter-rotating rotary-piston engine (10) has an output shaft (12) with a cylindrical inner cavity rotatably mounted on a single support spindle (14) in the frame of an aircraft. The output shaft (12) extends substantially through the...
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WO/2003/087576A1 |
Disclosed is a hydraulic pump for a power-assisted steering system, comprising an outer housing (10), a pump housing (14), and a motor housing (16). The outer housing (10) is used as a reservoir for the hydraulic fluid that is to be pump...
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WO/2003/083265A1 |
A rotary pump in which a bearing (2) is arranged between a scroll ring (3) and an eccentric shaft (1) and the shaft (1) rolls by the roller and leverage actions to cause a rotor (5) to scroll. The rotary pump is provided with a separator...
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WO/2003/074876A1 |
A gear pump comprising a motor section (10) having a cylindrical motor stator (14) and a motor rotor (18) disposed within the motor stator (14), a pair of gears (62, 64) meshing with each other and rotating with the driving of the motor ...
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WO/2003/058068A1 |
An orbital fluid pumping mechanism (37) having an outer tube (12) and an inner member (14) positioned substantially concentrically within the outer tube. Helical lobes (18, 22) form sealed pumping chambers to move the fluid.
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WO/2003/056180A1 |
The invention relates to a pump, particularly a vane pump or roller cell pump, provided with a two-stroke contour ring, a rotor, vanes, side plates, a casing, a casing cover and with lower vane grooves for supplying the lower vane surfac...
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WO/2003/040565A2 |
A constant-flow rotary pump comprising a casing (1) wherein a rotating driving wheel (2) is provided onto which at least two vanes (7a, 7b) are provided apt to come into sliding contact with the wall of said casing, the casing and the dr...
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WO2001096742B1 |
The invention relates to a portable hydraulic pump unit (1) comprising a housing (2), a pump (5), a drive motor (6) for the pump (5), in particular in the form of an electric drive motor, in addition to a reservoir (13) for hydraulic flu...
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WO/2003/036094A2 |
The invention relates to a vacuum pump, especially for brake servo units in motor vehicles. Said vacuum pump comprises a housing in which a driven plastic rotor is received in a rotatable manner.
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WO/2003/010418A1 |
A rotary vane apparatus (AA) where the rotor (90) has a rotational axis (29) and carries at least one vane (140) which is supported by a vane guide apparatus (100,110) for rotation about a stator axis (12) which is spaced from the rotor ...
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WO/2003/006830A1 |
An improved hydraulic motor system, suitable for driving an automotive cooling fan or the like. The system is driven by grade gerotor set and and idle gerotor set which are stacked between a center plate and against a rear wall of a cyli...
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WO/2003/000603A2 |
The invention relates to a device for thickening or dewatering sludge, watery sediments or the like, especially surplus sludge in sewage treatment plants. Said device is characterised in that it comprises a double-threaded or multi-threa...
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WO/2002/101201A1 |
A reciprocating rotating engine (1) having a combustion chamber and a pumping chamber (28) is provided with two sets of free pistons and pumps vanes (13) each set having two pistons and two pumps vanes (13). The two sets of pistons an pu...
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WO/2002/097273A2 |
The invention relates to a pump, especially a vane pump, especially for supplying lubricating oil to internal combustion engines or for supplying gear oil, said pump having a variable working volume and at least one means of adjustment. ...
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WO/2002/093506A1 |
A fluid metering device (30) preferably includes a substantially linear series of intermeshing gears (310, 314). The device includes an inlet port (340I-342I) adjacent the intermeshing portion of each pair of gears (310-313) within the s...
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WO/2002/084117A2 |
The invention relates to a method and a device which guarantees a constant output variable, e.g. the displaced volume of lubricating oil in a feed pump (3) which is actuated by a speed variable drive device (4), e.g. an internal combusti...
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WO/2002/081913A2 |
The invention relates to a hydraulic pump unit comprising a hydrostatic system pump which is used to provide a hydraulic working system with hydraulic fluid via a pressure connection, also comprising a second pump which is used to suctio...
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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/2002/077416A2 |
The problem of aligning the drive shaft (16) of a pressure clamped pump (10) with the output shaft (89) of a drive motor (80) in a hydraulic apparatus (70) is solved through the use of pressure clamped pump (10) having a housing (12) ada...
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WO/2002/057633A1 |
The pump for liquids has two identical crank spaces (2´, 2') adjacent to each other. In each of them a crank disk (3) is placed on a central pin (9), fitted with a piston rod pin (12). The piston rod pins (12) are connected by means of ...
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WO/2002/032706A1 |
A power generation and an actuating system capable of, when an engine is operated, driving a rotary machine with a power from the engine to drive a motor generator for power generation and, when the engine is stopped, operating the motor...
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WO/2002/023041A1 |
The invention relates to a hydraulic system (1) comprising a main pump (12) and a precompression pump (5), whereby the outlet (8) of the precompression pump (5) is connected by a connecting line (9) to the inlet (11) of the main pump (12...
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WO/2002/023699A2 |
Hydraulic drive systems require compact, efficient motor-pump aggregates. These requirements are met by integrating, as far as possible, an electromotor and one or more pumps into one device. This does however present this problem that o...
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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/2001/073295A1 |
The invention relates to a motor-pump unit comprising an electromotor (1) and a pump (2). The invention is characterized in that the pump (2) is surrounded concentrically by the rotor/stator (1.3, 1.1) of the motor; the rotor (1.3) of th...
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WO/2001/065118A1 |
A hydraulic pressure transformer (10) for the conversion of an input hydraulic power to an output hydraulic power comprises a cam block (26) including a cam opening (30) defining a pump section (32) and motor section (34). The pump secti...
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WO/2001/059288A2 |
An integrated brushless DC wet motor pump unit comprises a pump, a motor and a motor controller all contained within a housing. The motor includes a stator having stator coils fixed in relation to the housing and a motor rotor surroundin...
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WO/2001/053701A1 |
This invention offers advantages and alternatives over the prior art by providing a dual port hydrualic fixed-displacement pump (20) which exhibits improved efficiency by diverting a portion of the flow of discharged fluid to the low-pre...
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WO/2001/053702A1 |
This invention offers advantages and alternatives over the prior art by providing a dual port hydraulic fixed displacement pump (20) which exhibits improved efficiency by limiting the volume of discharged fluid which is subjected to the ...
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WO/2001/053724A1 |
A dual gerotor pump (22) is used for an automatic transmission. A dual gerotor pump (22) which is driven by a central drive mechanism (34) has a first chamber (36) which continuously provides transmission fluid to the automatic transmiss...
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WO/2001/025638A1 |
Said pump consists of a drive axle (9) and a driven axle (9') on which three separate pump bodies are mounted, each of said bodies consisting of a drive gear (6a) (6b) (7) and a driven gear (6'a) (6'b) (7') that are mounted on the drive ...
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WO/2001/025639A1 |
Disclosed is a twin pump. The twin pump comprises a casing having an inlet port and an outlet port which are defined at center portions of lower and upper surfaces thereof and a pair of cylinders which are defined in a manner such that t...
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WO/2001/018397A1 |
The invention relates to a device for pumping fluid using a hydraulic pump (10) and a drive (12) whereby the hydraulic pump (10) is produced as an independent component with different types of drive devices (12) as additional components ...
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WO/2001/006127A1 |
A long-life, low maintenance, bi-directional vane-type water pump has a high degree of symmetry and operates with equal efficiency in either direction. The axial position of the drive shaft is controlled to permit improved lubrication by...
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WO/2000/077363A1 |
The invention relates to a method for operating a turbomachine and to a device for carrying out this method. The aim of the invention is to improve the degree of efficiency of a machine of this type. To this end, fresh air that has been ...
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WO/2000/075518A1 |
A pumping arrangement for pumping a liquid product (10), such as oil products or liquefied gas, from a tank or container (11) comprises a rotary, high capacity main pump (12), such as a centrifugal pump, to be submerged in the liquid pro...
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WO/2000/061971A1 |
The invention refers to control devices applied in a hydrostatic transmission, which includes a motor pump (MP), a hydrostatic circuit (HC 1 and HC 2) and an impelling pump (IP), which is formed by a rotor (1), a stator (2) and a body (3...
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