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Patent Searching and Data


Matches 401 - 450 out of 7,095

Document Document Title
WO/2009/067434A1
A building sprinkler system includes a pump that feeds a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A speed control is responsive to suction pressure at a suction side of the pump. T...  
WO/2009/067434A8
A building sprinkler system includes a pump that feeds a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A speed control is responsive to suction pressure at a suction side of the pump. T...  
WO/2009/059793A3
The invention relates to a system and to a method for regulating a flow of liquid in a line, with a pump delivering the liquid to the consumer, tank or process. In particular, the invention relates to a sewage disposal system for public ...  
WO/2009/059793A2
The invention relates to a system and to a method for regulating a flow of liquid in a line, with a pump delivering the liquid to the consumer, tank or process. In particular, the invention relates to a sewage disposal system for public ...  
WO/2009/039934A1
The method to which the invention relates serves for monitoring an energy conversion device such as, for example, a pump assembly, a compressor or the like. The energy conversion device is composed of a plurality of functional units whic...  
WO/2009/026322A4
A centrifugal pump (10) including a motor (12) connected to a volute housing (14). The volute housing is configured to receive a pumping mechanism that includes an impeller (26) rotatably connected to the motor. At the impeller suction s...  
WO/2009/026322A1
A centrifugal pump (10) including a motor (12) connected to a volute housing (14). The volute housing is configured to receive a pumping mechanism that includes an impeller (26) rotatably connected to the motor. At the impeller suction s...  
WO/2009/020402A1
The invention provides approaches for optimising pump usage within a water distribution system. One approach involves considering combinations of physical pumps as single logical pumps to simplify the pump scheduling optimisation problem...  
WO/2009/020420A1
The present invention relates to a submersible centrifugal pump assembly comprising an impeller (2) suspended in the end of a drive shaft, and driven in rotation relative to an impeller seat (5) which is stationary in normal operation an...  
WO/2009/019150A1
A method of and an apparatus for controlling the height of a material column in a vessel upstream of a pump, in which method material is conveyed into an upper portion of the vessel, electrical signals are provided on the basis of the pr...  
WO/2009/006927A1
The invention relates to a method for preventing dry running in a centrifugal pump (P), to a pump monitoring module (PÜB) and to an arrangement. To detect and prevent dry running in a centrifugal pump (P) which is driven by an electric ...  
WO/2009/004277A2
A control arrangement for a pump comprises a dual switch control of a pressure switch (10) provided inside a pump head together with a high current sense (12). The pressure switch (10) is adapted to turn the pump (14) on when an outlet i...  
WO/2009/004291A3
A method and apparatus are disclosed for determining a negative pressure generated by a suction pump of a topical negative pressure (TNP) system. The method includes the steps of disconnecting a drive voltage from a pump of the TNP syste...  
WO/2009/004277A3
A control arrangement for a pump comprises a dual switch control of a pressure switch (10) provided inside a pump head together with a high current sense (12). The pressure switch (10) is adapted to turn the pump (14) on when an outlet i...  
WO/2008/141728A1
The invention relates to a device for monitoring and supporting the maintenance of a cleaning and/or aeration system for a device serving to receive and temporarily store contaminated liquid, the cleaning system comprising one or more as...  
WO/2008/138520A1
The invention relates to a device (1) for the fault monitoring of a centrifugal pump driven by an electric motor at variable speed, and to a method for fault monitoring using such a device (1). The device (1) captures operating values of...  
WO/2008/131846A1
The invention relates to a delivery pump comprising a variable-speed drive (5), wherein the delivery pump is designed as a single-stage rotary pump having a radial impeller (2) of a centrifugal type rotatively located in an impeller cham...  
WO/2008/124568A1
Systems and methods for using variable speed drives to restart downhole submersible pump motors. In one embodiment, a downhole pump is controlled using a variable speed drive that includes a control system configured to detect interrupti...  
WO/2008/119466A1
The invention relates to a fluid pump having a housing that encompasses a pump device driven by an electric motor, and having an operating part for entering controls commands for the pump device. In order to refine the fluid pump such th...  
WO/2008/119932A1
A method of monitoring a pump which operates to pump sewage from a wet well in which the current drawn by the pump is detected along with the speed of operation of the pump and the wet well level. The detected values are compared with st...  
WO/2008/116538A1
The invention relates to a method for the detection of errors in a pump unit, comprising an electric motor, or at least one shaft rotating in an electric motor, characterized in that a vibration signal is detected (1), the detected vibra...  
WO/2008/101687A3
The invention relates to a pump unit comprising a pump (4) and an electric drive motor (6), in addition to an electronic control unit (8), which has a module (14) that identifies the correct rotational direction (CW, CCW) of the drive mo...  
WO/2008/101687A2
The invention relates to a pump unit comprising a pump (4) and an electric drive motor (6), in addition to an electronic control unit (8), which has a module (14) that identifies the correct rotational direction (CW, CCW) of the drive mo...  
WO/2008/096731A1
[PROBLEMS] To provide a reliable pump which can control a flow rate with a simple structure at a reasonable cost. [MEANS FOR SOLVING PROBLEMS] By referencing a current value-exhaust flow rate relationship (4000 rpm) (64) stored in a judg...  
WO/2008/096103A1
Shower apparatus is provided for preventing flooding of a shower floor area, the apparatus comprises : a shower unit (10) which has a water inlet (16) connected or connectable to a water supply (18), and a shower head (20) for the discha...  
WO/2008/094501A1
In a rotodynamic pump, a seal chamber conditioning valve mechanism is positioned at least partially within the seal chamber of the pump to selectively and intermittently deliver fluid to or discharge contents from the seal chamber to mod...  
WO/2008/081368A1
A method of monitoring integrity of a pump. The method may include recording timing information of the pump during operation while simultaneously sampling acoustic data with a high speed equidistant acquisition mechanism or at a rate bas...  
WO/2008/043879A1
Pump device, particularly a dosing pump, which is intended for dosing at least one liquid substance by sucking the liquid along a suction hose/pipe (6) from one point to the pump (10) and feeding the liquid along an outlet pipe/hose (13)...  
WO/2007/144054A1
The invention relates to a rotary pump with an impeller (5) that sits on the shaft (1) of a synchronous motor, the engine shaft having in the region of the impeller a helical guide (7), in particular an external thread, in which the impe...  
WO/2007/134896A1
The invention relates to a pump unit (10) for a fluid system with a pressure sensor (4) that detects the actual pressure (5) in the fluid system and transmits it to a regulating unit (3), and a control circuit (2) that sets the speed of ...  
WO/2007/134401A1
A pumping station controller (14) is provided for monitoring pumping station hardware such as a well level sensor (8) and pumps (10a,... , 1On). A user interface (12) enables a user to input data to the controller (14) for controlling th...  
WO/2007/134454A1
A method and apparatus are disclosed for controlling a relay pumping setup comprising an upstream pumping unit for pumping a liquid into a relay reservoir and a downstream pumping unit for pumping from said relay reservoir to a given loc...  
WO/2007/131729A1
The invention relates to a device for transmitting measured values, having a sensor module, which comprises miniaturized components, and an evaluation unit, wherein the sensor module has connections for different sensors, one or more sen...  
WO/2007/122270A1
In blood perfusion during cardiac surgery or ventricular assistance, for treating cardiac insufficiency, use is currently made of a centrifugal pump that generates a linear flow in the circulatory system, counter to the pulsating flow ge...  
WO/2007/112928A1
The invention relates to a submersible pump (10) comprising a pump housing (12) which can be immersed into a liquid that is to be evacuated and is provided with a suction inlet (39) and a pressure outlet (41). The liquid can be sucked in...  
WO/2007/108711A1
In the device, according to the invention, the retention tank (7) constitutes a distributing chamber which is connected to the external retention tank (10) being a segment of a gravity-flow channel (11) with its cross-section greater tha...  
WO/2007/095685A1
This Invention relates to an industrial process efficiency method and system and relates particularly to a method and system for improving the efficiency and performance of any industrial process when loading is at maximum capacity or un...  
WO/2007/082638A1
The invention relates to a method for compensating wear and tear of pumps, wherein the pump rotation speed and variation of pressure are determined in an advantageous manner, which is associated according to a predetermined desired chara...  
WO/2007/071217A1
The invention relates to a controllable coolant pump for internal combustion engines which is driven by torque transmission elements. It is an object of the invention to develop a driven, controllable coolant pump of this type for intern...  
WO/2007/071352A1
The invention relates to a speed-regulating unit in a fluid-cooled configuration for connection to a drive motor, in particular a motor of a pump assembly for conveying fluids, wherein the speed-regulating unit encloses a line which cond...  
WO/2007/073210A1
The present invention relates to a centrifugal pump and a method of varying the operating characteristics of a centrifugal pump. The centrifugal pump has a pump housing, which in the preferred form comprises a front casing 22 and a back ...  
WO/2007/068455A1
The invention relates to a waste water lifting system with a collecting tank (2) for liquids, in particular waste water, faecal matter or the like, and with a device for emptying the tank, in particular a pump (3) which is connected to a...  
WO/2007/045836A1
A waste water unit (10) for pumped domestic drainage, comprises a waste body (12), a waste water inlet (14) through which waste water enters the body (12), a waste water outlet (16) for connection to a drain, and a switch device (20) for...  
WO/2007/041818A1
The present invention relates to a fluid compressor having an aerostatic bearing, to a control system of a fluid compressor having an aerostatic bearing as well as to a method of controlling a compressor, wherein the aerostatic bearing i...  
WO/2007/030914A1
A system for automatically controlling a pumping unit used in fire suppression comprises a pumping unit, a water flow sensor and a pump controller. The pumping unit has a pump with a suction inlet configured to receive water from an upst...  
WO/2007/024475A1
A submersible pump includes a pump housing forming a main compartment for receiving a pump impeller and having liquid entrance and exit openings. A sealed auxiliary compartment is formed as an integral part of the housing. A drive motor ...  
WO/2007/019496A1
A fluid pump (10) includes a pumping chamber (14), an inlet (16) and an outlet (18) fluidly connected with the pumping chamber, and a passage (24) fluidly connected between the inlet and the outlet. Fluid flowing through the passage bypa...  
WO/2007/018044A1
A method and a device for estimating the flow rate and head of centrifugal pumps (10), (30), (60), (70), and (80) in which impellers (14) are rotated based on lateral forces applied to the impellers (14) while the impellers (14) are rota...  
WO/2007/004943A1
The invention relates to a pump for pumping contaminated liquid including solid matter, comprising a pump housing provided with a rotatable impeller (1) suspended in a drive shaft (3) and having at least one vane (5) , and an impeller se...  
WO/2006/137765A1
The present invention relates to an adjustment device for adjusting the pitch angle of the propeller blades (4) of a propeller pump (1) and a propeller pump incorporating such a device. The adjustment device comprises adjustment means (5...  

Matches 401 - 450 out of 7,095