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Patent Searching and Data


Matches 401 - 450 out of 6,900

Document Document Title
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...  
WO2004001515A9
A system and method for measuring fluid or gas flow rate, for the system where fluid or gas is pumped, such as gas monitoring instrument, via a conduit to a sensor. The flow of gas through a pump (14) is determined by measuring motor bac...  
WO2004011811A9
A mix-in structure for a gas or the like in a pressurization centrifugal pump, capable of mix-discharging liquid and gas or the like to prevent cavitation and of suppressing gas residence in the pump chamber at the time of operation stop...  
WO2004001515A3
A system and method for measuring fluid or gas flow rate, for the system where fluid or gas is pumped, such as gas monitoring instrument, via a conduit to a sensor. The flow of gas through a pump (14) is determined by measuring motor bac...  
WO/2004/020835A1
A submersible motor-driven pump (1) comprising a housing (3), an intake pipe (5) disposed on the housing, an impeller disposed inside the intake pipe in order to produce an intake flow and in order to transport a fluid to a discharge con...  
WO2003095277B1
The present invention comprises a cleaning system for headlamps and/or panes, particularly of motor vehicles, comprising a tube system with liquid reservoir and a pump for providing and supplying a cleaning liquid and a nozzle configurat...  
WO/2004/011811A1
A mix-in structure for a gas or the like in a pressurization centrifugal pump, capable of mix-discharging liquid and gas or the like to prevent cavitation and of suppressing gas residence in the pump chamber at the time of operation stop...  
WO/2004/011810A1
A method of monitoring the condition of a pump (10) or at least one component of a system that includes a pump which component or components are not a part of the pump, includes the step of generating a predetermined test condition in th...  
WO/2004/007923A1
The invention relates to a device for driving a coolant pump (2) for the coolant circuit of an internal combustion engine in a motor vehicle comprising a drive train that encompasses a drive wheel (7), a viscous coupling (11), and a driv...  
WO/2004/001226A2
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/2004/001515A2
A system and method for measuring fluid or gas flow rate, for the system where fluid or gas is pumped, such as gas monitoring instrument, via a conduit to a sensor. The flow of gas through a pump (14) is determined by measuring motor bac...  
WO/2003/101798A1
A vehicle exterior surface wash apparatus includes a source (20) of pressurized fluid having a pump (22) which is operable in one of two different outlet flow directions and/or one of two different outlet flow pressures. Distribution con...  
WO2003078839A3
A hydraulic pump comprises one or more outlets, one or more pressure sensors and/or one or more flow sensors linked to or incorporated in a pump's control means which is adapted to compare the or each measurement obtained from the or eac...  
WO/2003/095277A1
The present invention comprises a cleaning system for headlamps and/or panes, particularly of motor vehicles, comprising a tube system with liquid reservoir and a pump for providing and supplying a cleaning liquid and a nozzle configurat...  
WO/2003/095832A1
An electrical power supply for powering electrical pump (12) instrumentation (73) and process control equipment (77) associated with a pump (12) having a rotating member. The power supply includes an electrical current generator (42) dri...  
WO2001005349A8
A control circuit for use with a spa system includes a pressure sensor (70) which generates a signal representative of the pressure in the system. A microcontroller (68) is coupled to receive the signal from the sensor and is configured ...  
WO/2003/082790A1
A transporting method and a transporting facility for an easily polymerizable material which are prevented from the stagnation of an easily polymerizale material at a liquid feed pump and from the resulting generation and adhesion of sol...  
WO/2003/083312A1
In a centrifugal pump (10) for liquids comprising an impeller casing (50) inside which a centrifugal impeller (40) is rotatably mounted including a hub (42) from which a plurality or curved blades (44) delimited by two curved edges (44a,...  
WO/2003/081050A1
A self-regulating water pump has a volute (4), an impeller (5) rotating about a respective longitudinal axis (3), and at least one substantially annular elastic member (12) located between the impeller (5) and the volute (4) and substant...  
WO/2003/078839A2
A hydraulic pump comprises one or more outlets, one or more pressure sensors and&sol or one or more flow sensors linked to or incorporated in a pump's control means which is adapted to compare the or each measurement obtained from the or...  
WO/2003/071109A1
The invention advantageously relates to an electric coolant pump (1), particularly for the coolant circuit of motor vehicle internal combustion engines, comprising a coolant pump motor, which drives a pump impeller (6) via a pump shaft (...  
WO/2003/071133A1
An arrangement (10) for controlling the liquid level in a basin (60) by selectively actuating a pump (64) has an environmentally-sealed enclosure (22) with an internal volume subject to thermal and pressure effects. A first (14) and a se...  
WO/2003/070299A1
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same are disclosed. One embodiment ...  
WO/2003/062643A1
A wastewater pumping system includes a centrifugal pump operatively connected to an electric motor via a coupling. The speed of the electric motor is automatically varied responsive to the head or load realized by the pump of the system ...  

Matches 401 - 450 out of 6,900