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Patent Searching and Data


Matches 401 - 450 out of 6,947

Document Document Title
WO/2006/110692A1
A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated with an impeller exit temperature. A con...  
WO/2006/102981A1
The invention relates to a submersible motor for a submersible pump, which is embodied as a one-phase asynchronous motor, and a main winding (6), an auxiliary winding (8) in addition to a start device (10, 14, 16, 18, 20, 22) which is us...  
WO/2006/066388A1
A pump for a liquid circulation system in the oil industry and method of sizing a pumping system, said pump having a rotor and a stator each defining a surface, the rotor surface defining an helical thread having a thread height and a th...  
WO2005055694A3
The following invention pertains to a method and apparatus for a pump (10) control system (28). One or more embodiments of the invention include a pump controller (28) that can perform a self-calibration procedure (100), provide precise ...  
WO/2006/035724A1
In a conventional water discharge pump assembled in an air conditioner, the rotation of a blade wheel produces cavitation to cause a problem with quietness. A vertical shaft water discharge pump of the invention has a rotor (23), a casin...  
WO/2006/032131A1
A pump system includes a fixed or variable capacity pump and a speed-related control mechanism to alter the capacity of a variable capacity pump or to alter the relief pressure of a fixed capacity pump in response to changes in the opera...  
WO2005111473A3
A method and apparatus are provided for controlling the operation of a centrifugal pump, featuring steps of either adjusting the operation of the pump, or issuing a warning to a user of the pump of an undesirable operating condition, or ...  
WO/2006/032132A1
Two embodiments are provided. In the first embodiment a variable capacity vane pump has a slide ring which is moveable to alter the capacity of the pump and the pump can be operated at either of at least two selected equilibrium pressure...  
WO/2006/019352A1
The present invention relates to control systems and methods for improving the handling of sewage or waste water in a pump station having at least one variable speed pump and for increasing the overall efficiency of the pump or the pumps...  
WO/2006/015693A1
The inventive control device for a liquid-pumping system comprises an electronic control unit which is connected to the liquid-pumping system, to actuating and adjusting devices and is associated with a display and/ or input device. Acco...  
WO/2006/017161A1
A sensor system for sensing liquid level in a bilge, for use in automatic bilge pump actuators. First and second field effect sensors are potted or sealed within a container or the bilge wall and are aligned in a vertical array and each ...  
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...  
WO/2005/121507A1
A system and method are provided for identifying underperformance in a pumping system used to produce a desired fluid. Various conditions are sensed during operation of the pumping system, and those sensed conditions are used to determin...  
WO2004001226A3
A vertically-disposed pump shaft (120) is supported by an upward force against the pump shaft during periods of non use of the pump thereby off-loading bearings (136) normally supportive of the shaft to prevent damage thereto when the pu...  
WO/2005/111473A2
A method and apparatus are provided for controlling the operation of a centrifugal pump, featuring steps of either adjusting the operation of the pump, or issuing a warning to a user of the pump of an undesirable operating condition, or ...  
WO/2005/111412A2
A self-calibrating, continuous variable speed fan for use in cooling electronic circuitry is disclosed. Upon initial power-up, in an environment of known temperature, the self-calibrating fan accommodates for the tolerances on its electr...  
WO/2005/111412A3
A self-calibrating, continuous variable speed fan for use in cooling electronic circuitry is disclosed. Upon initial power-up, in an environment of known temperature, the self-calibrating fan accommodates for the tolerances on its electr...  
WO/2005/108757A3
A turbocharger (24) comprising a turbine (28), director (2), and compressor (34). The turbine (28) may be formed as a turbine wheel (68) surrounded by at least two scrolls (26). The at least two scrolls (26) may direct exhaust gases supp...  
WO/2005/106253A1
The pump (1) comprises : a supporting enclosure (2-4) incorporating a shaped body (3) to which there is connected a volute (4) having an axial inlet (5) and a tangential peripheral outlet (6) for the fluid being pumped, a single phase sy...  
WO/2005/103497A1
A pressure pump for sludge, the overall height of which is kept low to reduce its size and in which a shaft sealing section is eliminated to reliably prevent water leakage. With a motor case (2) in the middle, a cutter (23) is provided a...  
WO/2005/098217A1
The invention relates to a method for operating a transport device (120) and to a transport device (120) for continuously transporting a liquid. The method and the transport device (120) are particularly suitable for use in a water injec...  
WO2005019655B1
The invention relates to an electronic driving device (20) for turning on and off a synchronous pump, that is a pump (15) comprising a synchronous electric motor (1) with a permanent-magnet rotor (8), comprising: - at least a static powe...  
WO/2005/088134A1
The invention relates to a method and an arrangement for controlling a pump station. The invention is preferably applied to a pump station connected to a well or a reservoir (460). The purposes of the invention are achieved with a soluti...  
WO/2005/081390A1
The invention relates to a method for diagnosing operating states (36, 38, 40, 42) of a synchronous pump in a liquid circuit, particularly in a washing machine or similar. According to the inventive method, the alternating voltage (U) ap...  
WO/2005/080798A1
It is possible to provide a highly-reliable small-size, simplified water supply pump system at low cost by deriving a NPSH required in actual operation condition with a high accuracy. By correcting a first NPSH required according to a te...  
WO/2005/078287A1
The invention relates to a method for determining faults during the operation of a pump unit. At least two electric variables that determine the electric output of the motor and at least one fluctuating hydraulic variable of the pump are...  
WO/2005/075827A1
The present invention provides a pumping system (60) comprising: a pumping mechanism (64); a motor (51) for driving the pumping mechanism; a drive control (50) for controlling the motor; and means (52) for monitoring at least one state w...  
WO/2005/064167A1
The invention relates to a rotary pump which comprises one or more pressure sensors for detecting a differential pressure (&Dgr p) produced by the rotary pump and an evaluation unit for determining an output indication (Q) on the basis o...  
WO/2005/055694A2
The following invention pertains to a method and apparatus for a pump (10) control system (28). One or more embodiments of the invention include a pump controller (28) that can perform a self-calibration procedure (100), provide precise ...  
WO2005024240A3
The present invention relates to a method and relevant electronic device (10) for determining the hydraulic flow rate in a pump driven by a synchronous electric motor (12), said motor (12) being of the type comprising a rotor (14), equip...  
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...  
WO2002086318A3
A method and system to detect cavitation in a pump (100) and to determine the remaining life of a mechanical seal. A sensor (190) is included within the mechanical seal section (120) of the pump (100). Dynamic pressure changes occuring w...  
WO/2005/038262A1
The present invention provides a submersible turbine pump (STP) comprising a check valve located within a hydraulics cavity, wherein the STP provides the ability to depressurize the hydraulics cavity by relieving a pressure differential ...  
WO/2005/038261A1
The present invention provides a submersible turbine pump (STP) comprised of a manifold comprising an electrical cavity, a port above the electrical cavity, and a field wiring conduit through which electrical field wiring is brought into...  
WO/2005/038265A1
The present invention provides a submersible turbine pump (STP) including a packer and a manifold and that requires less force to separate the packer from the manifold. The STP comprises a casing body including the manifold and the packe...  
WO/2005/038264A1
A submersible turbine pump (STP) comprising a manifold, a yoke assembly including a yoke sleeve integrally connected to the manifold, and a packer removably secured to the manifold is provided. The manifold includes an electrical cavity ...  
WO/2005/035433A1
A submersible turbine pump (STP) is provided. The STP includes a manifold having an integral siphon connection coupled to a fuel flow path in the STP and a siphon cartridge removably inserted into the manifold via the siphon connection. ...  
WO2005019655A3
The invention relates to an electronic driving device (20) for turning on and off a synchronous pump, that is a pump (15) comprising a synchronous electric motor (1) with a permanent-magnet rotor (8), comprising: - at least a static powe...  
WO/2005/024240A2
The present invention relates to a method and relevant electronic device (10) for determining the hydraulic flow rate in a pump driven by a synchronous electric motor (12), said motor (12) being of the type comprising a rotor (14), equip...  
WO/2005/019649A1
The present invention relates to a synchronous pump structure, particularly to an immersion pump (1) equipped with a float control device (3) and comprising a synchronous electric motor (2) with a permanent magnet rotor (8). The pump (1)...  
WO/2005/019655A2
The invention relates to an electronic driving device (20) for turning on and off a synchronous pump, that is a pump (15) comprising a synchronous electric motor (1) with a permanent-magnet rotor (8), comprising: - at least a static powe...  
WO2004059170A3
A system for determining whether a centrifugal pump assembly is degraded as operating outside of acceptable operating limits and includes a processor adapted by software to perform the steps of automatically characterizing the pump chara...  
WO/2004/104423A1
A pressure relief arrangement for a pump (10) which includes a pump housing assembly with a pumping chamber (25) therein, the pump housing assembly including a section (41) mounted for movement between a normal operating position and a v...  
WO/2004/072485A1
A digital pressure controller that utilizes a microprocessor provides for control of the speed of a fluid pump engine for the purpose of maintaining specified pressures at both the inlet and outlet of the pump. Based upon pressure sensor...  
WO/2004/067863A1
In performing the method according to the invention the sewage accumulating in the transfer tank is periodically drawn away and is, in given circumstances, stirred in such a manner that the sewage is guided into the pump horizontally or ...  
WO/2004/059142A1
An impeller pump with thermostatically adjustable swirl-vanes, in use as an automotive engine-driven coolant pump. Flow variation is controlled by varying the orientation of the swirl-vanes. A change in orientation is effected by a therm...  
WO/2004/059170A2
A system for determining whether a centrifugal pump assembly is degraded as operating outside of acceptable operating limits and includes a processor adapted by software to perform the steps of automatically characterizing the pump chara...  
WO/2004/049086A1
The invention relates to a pressure regulated method for a technical system and serves to prevent cavitations in a liquid medium, which is conveyed inside a conduit section (10) consisting of a pump (1), a pressure sensor (2), a flowmete...  
WO/2004/044535A1
In a motor vehicle, the level in a reservoir (3, 4) is indicated by a level indicator (5) according to an output signal of a level sensor (1, 2) that is assigned to said reservoir (3, 4). In addition, the output signal of the level senso...  
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...  

Matches 401 - 450 out of 6,947