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Patent Searching and Data


Matches 701 - 750 out of 5,486

Document Document Title
WO/2009/057872A1
In a compressor, a motor includes a stator and a moving member that reciprocates. A frame supports the stator and a conductivity member flows at least a portion of magnetic flux flowing away from the stator back to the stator. Accordingl...  
WO/2009/054636A1
A linear compressor comprises: a stationary member including a cylinder (200) for providing a space for compressing a refrigerant; a movable member linearly reciprocating with respect to the stationary member, and including a piston (300...  
WO/2009/054654A2
The present invention discloses a reciprocating compressor which can linearly reciprocate a piston (6) inside a cylinder (4) as a linear motor (10) is driven, compress a refrigerant by sucking the refrigerant into a compression space (P)...  
WO/2009/054637A1
There is provided a linear compressor (100), which has a reduced number of front main springs (820) located at the front among springs continuously transmitting a force so that a piston (300) can move in a resonance condition. The linear...  
WO/2009/054629A1
The present invention relates to a linear compressor (100); and more particularly, to a linear compressor (100) provided with three mainsprings (820,840) having a resonance frequency synchronized with an operating frequency, where the re...  
WO/2009/054630A1
A linear compressor (100) comprises: a stationary member including a cylinder (200) for providing a space for compressing a refrigerant; a movable member linearly reciprocating with respect to the stationary member, and including a pisto...  
WO/2009/054631A1
The present invention provides a linear compressor including: a shell (110); a fixed member installed inside the shell (110), and including a cylinder (200) for providing a compression space of refrigerant introduced into the shell (110)...  
WO/2007/064591A3
A wellbore motor includes a source of rotational motive power disposed in a wellbore, a magnetic gear member operatively coupled at an input thereof to the source; and a magnetic gear member output coupled rotationally to a rotary wellbo...  
WO/2007/021817A3
Apparatus and Method for Handling Fluids at Nano-Scale Rates. A linear displacement pump produces non-pulsatile liquid flow rates as low as the nl/min range. The pump includes a servo motor, a gear reduction, a lead screw, a linear stage...  
WO/2007/002498A3
An assembly for pre-stressing a canister within a magnetically coupled device having a housing body, a housing head and a canister connectable to the housing body, a pin and pin plate combination disposed between the housing head and the...  
WO/2007/046810A3
A refrigerant system with an economizer cycle incorporates a time dependant vapor injection scheme to reduce losses and enhance performance. The benefits of such an approach are particularly pronounced at low pressure ratios typical of a...  
WO/2006/060260A3
A blood pump comprises a pump housing; a rotor positioned in the housing and comprising an impeller having a hydrodynamic surface for pumping blood; and a motor including a plurality of magnets carried by the impeller, plus a rotor stato...  
WO/2009/044016A2
The present invention relates to a modulating liquid pump. This pump (2) comprises an inlet port (4) for receiving a liquid and an outlet port (6) for delivering said liquid, an electromagnetic pump (12) placed between the inlet port and...  
WO/2009/043798A1
The invention relates to mobile hydraulic pumps for hydraulically operated tools, comprising a pancake motor on a housing and an outlet for the hydraulic medium and at least one pump unit arranged in the housing, said pump unit being cou...  
WO/2009/039602A1
The invention relates to electric linear motors and gas springs in reciprocating pumps for oil wells. By the use of this invention a simple, silent, compact and adaptable mechanism can be constructed to drive a wide range of such pumps. ...  
WO/2009/039079A1
A noise isolation device includes a plurality of panels comprising a sound absorbent material for assembling into an enclosure for a pump mechanism and a plurality of fasteners built into the panels for assembling the panels to form an e...  
WO/2009/036363A2
A precision pumping system is disclosed. The pumping system includes an electric motor assembly powering a first drive shaft driving a first pump at a first flow rate and powering a second drive shaft driving a second pump at a second fl...  
WO/2009/034187A1
The invention relates to a metering system 22 having at least one bidirectionally operating micropump 1 or an arrangement having at least one micropump 1 allowing a bidirectional pump operation, used for filling and emptying microtiter p...  
WO/2009/036034A1
An electrical submersible pump assembly has a motor cooperatively engaged with a pump for driving the pump and a motor lead extending to the motor for supplying power to the motor. The motor lead has an electrical conductor enclosed with...  
WO/2008/143983A4
Submersible pumping systems, devices and methods for extracting liquids in deep well applications are disclosed. In the various embodiments, a submersible pumping system includes a power supply and a power converter coupled to the power ...  
WO/2009/029855A1
In an exemplary method first and second housing portions are provided that collectively, when assembled, define a pump-cavity that accommodates the rotary member(s). The rotary member(s) is assembled into the pump-cavity, along with at l...  
WO/2009/024308A1
The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movab...  
WO/2009/003144A3
A variable geometry turbocharger is provided. The turbocharger improves efficiency by controlling flow to the rotor (230) via movable vanes (260). The vanes (260) can be rotated using a pin (380, 480) and groove (385, 485) system. The va...  
WO/2009/017429A1
A machine such as an external combustion engine in an electrical power and heat cogeneration unit comprises multiple cylinders, each driving an independent load or being independently driven, and a balance shaft comprising one or more of...  
WO/2009/015035A1
An electric submersible pump device having a motor part, a pump part, and a protector part. The protector part includes redundant shaft seal parts.  
WO/2009/013705A1
Herein described is a device for controlling fluid motion in a micro/nanofluidic structure of channels, comprising: - a structured volume of material (30), bearing a predetermined configuration of micro/nanofluidic channels (C) for holdi...  
WO/2008/143983A3
Submersible pumping systems, devices and methods for extracting liquids in deep well applications are disclosed. In the various embodiments, a submersible pumping system includes a power supply and a power converter coupled to the power ...  
WO/2009/012258A1
A magnetic bearing system and related method that utilizes self-sensing in order to determine and adjust the position of a shaft within the bearing. Magnetic bearings levitate a rotating object with a magnetic field and are unstable in o...  
WO/2009/003540A1
The invention relates to a diaphragm pump (1) having a diaphragm (11), a solenoid with a movable magnet armature (8) as a drive element for the diaphragm (11), and a stop element (9) for adjusting the stroke for the drive element (8). Th...  
WO/2009/006385A1
One embodiment includes a housing (14) and an impeller (34). The housing (14) comprises an inlet portion (24) which in turn defines an inlet passage (28). The inlet passage (28) leads to the impeller (34) and directs fluid flow substanti...  
WO/2009/005510A1
Pumping systems for pumping shear-sensitive fluids between first and second reservoirs. In various embodiments, the pumping system may include a portable platform that supports at least one diaphragm pump thereon. The diaphragm pumps are...  
WO/2009/003144A2
A variable geometry turbocharger is provided. The turbocharger improves efficiency by controlling flow to the rotor (230) via movable vanes (260). The vanes (260) can be rotated using a pin (380, 480) and groove (385, 485) system. The va...  
WO2007137194A9
An electromagnetic pump (10) comprising an armature (45) comprising a pole portion (48) and plunger portion (49), the plunger portion sized to be received in a cylindrical passage formed in the housing and which guides the armature. The ...  
WO/2008/073422A3
A tool with an engine, a shaft, and a recoil starter pulley coupled to the shaft for rotation about an axis. A starter pull rope for winding and unwinding around the recoil starter pulley. An air chamber shroud extending about at least a...  
WO/2008/154090A1
The present invention is an actuator for a piston pump that includes a separately formed piston (62) and armature (60). The piston and the armature are later assembled together or are inserted into the piston pump in such a manner as to ...  
WO2008021503B1
A pump system has a rotatory shaft and a rotatory drive arrangement coupled to the rotatory shaft for applying rotatory energy thereto. First through fourth pump arrangements are coupled to the rotatory shaft, each pump arrangement pumpi...  
WO/2008/147605A1
An electromagnetic pump comprising a voltage sense device (124) for sensing the electrical voltage applied to the coil, a current sense device (122) for sensing the coil current, and control electronics (120) to detect the end of a pump ...  
WO/2008/144148A1
The present invention relates to an apparatus for rotating a piston (62) of a solenoid drug pump during the pumping stroke to reduce drug pump wear. In the present invention, the armature (60) to which the piston is connected includes on...  
WO/2007/102899A3
A highly efficient fluid pump and pumping method are disclosed. The pump includes a cylinder, a piston in the cylinder defining a first and second volume in the cylinder, and a motive actuator for driving reciprocatively a rod attached t...  
WO/2008/144149A1
A piston pump includes an actuator member (59) with a piston (62) that articulates between a retracted and a forward position in a piston channel (38). Movement between the retracted and forward position, a pumping stroke, expels a known...  
WO/2007/146931A3
An apparatus and method for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, include a linear rod pump having a mechanical rack and pinion drive arrangement, adapted for attachment to a pumpi...  
WO/2008/136979A1
A rotary blood pump may include one or more motor stators overlying exterior surfaces of a wall defining a pumping chamber. A rotatable impeller within the pumping chamber may have a hydrodynamic thrust bearing surface adapted to constra...  
WO/2008/132640A2
An oilfield pump employing a linear electric motor. The linear electric motor replaces a conventional crankshaft or hydraulic techniques for driving a plunger of the pump. This may reduce the number of equipment parts and amount of maint...  
WO/2008/132514A1
Drilling rig apparatus having a driven shaft, such as a mud pump comprising a pumping section (20) and a motor a pparatus (30), the pumping section (20) having at least one pump (58,59) and a main pinion shaft (32), said motor apparatus ...  
WO/2008/021503A3
A pump system has a rotatory shaft and a rotatory drive arrangement coupled to the rotatory shaft for applying rotatory energy thereto. First through fourth pump arrangements are coupled to the rotatory shaft, each pump arrangement pumpi...  
WO/2008/052105A3
A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certai...  
WO/2008/124877A1
An apparatus for pumping or compressing a fluid, the apparatus comprising a housing having a bore, at least one inlet and at least one outlet in communication with the bore, one or more pistons adapted for movement relative to the bore a...  
WO/2008/123688A1
A two stage reciprocating compressor includes a casing. A first compressing unit is disposed in the casing and includes a first piston and a first cylinder, the first compressing unit being driven by a reciprocating motor to linearly rec...  
WO/2007/103384A3
A fluid energy transfer device, including a chamber for receiving a fluid, at least a portion of the chamber comprising a movable portion relative to another portion of the chamber, the movable portion being adapted to change the volume ...  
WO/2008/118016A1
Chromatographic column system, in particular a chromatographic column system of the expanded bed adsorption column type comprises a column connected to a fluid inlet and a fluid outlet and dimensioned to comprise an expandable filter bed...  

Matches 701 - 750 out of 5,486