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Patent Searching and Data


Matches 401 - 450 out of 7,212

Document Document Title
WO/2009/156326A3
The invention relates to a method for identifying the load condition of a fluid-delivering, electric motor driven pump of a domestic appliance. The invention is characterized in that the pump is driven by a permanent magnet electric moto...  
WO/2009/149796A3
The invention relates to a centrifugal pump unit comprising an electric driving motor (4) and a control device (6) for controlling the speed of the driving motor (4). The control device (6) has a frequency converter (8) and is designed s...  
WO/2009/150337A2
The invention relates to a device for pumping a cryogenic fluid, consisting of a tank (1) for storing a cryogenic fluid containing cryogenic liquid, a cryogenic pump (3) having an inlet pressure loss (net positive suction head, NPSH), an...  
WO/2009/149796A2
The invention relates to a centrifugal pump unit comprising an electric driving motor (4) and a control device (6) for controlling the speed of the driving motor (4). The control device (6) has a frequency converter (8) and is designed s...  
WO/2009/143832A3
The invention relates to a controllable coolant pump driven by a belt pulley for internal combustion engines. The aim of the invention is to develop a controllable coolant pump (having a gate valve) driven by a belt pulley, allowing sign...  
WO/2009/143832A2
The invention relates to a controllable coolant pump driven by a belt pulley for internal combustion engines. The aim of the invention is to develop a controllable coolant pump (having a gate valve) driven by a belt pulley, allowing sign...  
WO/2009/143832A8
The invention relates to a controllable coolant pump driven by a belt pulley for internal combustion engines. The aim of the invention is to develop a controllable coolant pump (having a gate valve) driven by a belt pulley, allowing sign...  
WO/2009/144452A1
A pump system (10) for a pipeline (100) is disclosed that incorporates a pump (12) connectable to a supply pipe (101) and a discharge pipe (102) of the pipeline (100). The system (10) further includes a flow impeding device (22) which in...  
WO/2009/138058A1
The invention relates to a controllable coolant pump and to a method for the control of this controllable coolant pump for internal combustion engines, which is driven over a belt pulley. The object of the invention is to develop a cont...  
WO/2009/133125A1
The invention relates to a fluid energy machine (1), in particular a compressor (45), which has a common rotor (5), which is mounted using magnetic bearings (11, 12, 13), for the flow machine (2) and the drive (3). In addition to the mag...  
WO/2009/124635A1
The invention relates to a sensor for switching a pump on and/or off, having at least one first (2) and a second (4) electrode forming a capacitance (C) that can be influenced by the fluid to be delivered, and an electronic circuit (40) ...  
WO/2009/120522A3
An integrated fan drive system for air-cooled heat exchangers. The integrated fan drive system has a high-torque, low speed permanent magnet motor having a rotatable shaft, a fan that is directly connected to the rotatable shaft, and a v...  
WO/2009/120522A2
An integrated fan drive system for air-cooled heat exchangers. The integrated fan drive system has a high-torque, low speed permanent magnet motor having a rotatable shaft, a fan that is directly connected to the rotatable shaft, and a v...  
WO/2009/103647A1
The invention relates to a pump wheel (1) for a pump, comprising a base body (2) that can be rotated about a rotational axis (D) and on which at least one wing element (3) is arranged for conveying a fluid during the rotation of the pump...  
WO/2009/096806A1
A method of controlling operation of an ESP, comprising determining at least one operating speed (rpm) at which the ESP experiences unacceptable levels of lateral vibrations; and applying a periodic modulation to the operating speed when...  
WO/2009/093750A1
A water supply (1) such that even if one control board fails, the other control board can take over the control reliably. The water supply (1) comprises pumps (3), inverters (INV) for variably controlling the rotation frequency of the re...  
WO/2009/091076A1
A dust collector (100) includes a suction unit (7) that sucks water-containing dust, a tank (2) that stores the dust sucked from an inlet port (3) by the suction unit (7), and a water level detecting unit (22, 27a, 27b, 28) (electrodes 2...  
WO/2009/080634A3
The invention relates to a blocking element (1) for fluid media. The position of said blocking element, which has a peripherally located hinge axis (2), can be modified according to the flow. According to the invention, an influencing me...  
WO/2009/080634A2
The invention relates to a blocking element (1) for fluid media. The position of said blocking element, which has a peripherally located hinge axis (2), can be modified according to the flow. According to the invention, an influencing me...  
WO/2009/077166A1
The invention relates to a centrifugal pump with a suction connection and a pressure connection (3, 5) and a flow sensor (11) measuring the volume flow, wherein the flow sensor is detachably connected to the wall (7) of the suction (7) o...  
WO/2009/079622A1
A fan system includes a fan and a fan rotation speed control. The speed control is operable to command the fan to rotate at a speed selected from a certain range of rotation speeds. A fan oscillation detector may be coupled with the fan ...  
WO/2009/068385A1
The invention relates to a water-bearing domestic appliance (GS), in particular a dishwasher or washing machine, at least having a water diverter (WW) which has a fluid distributor body which has at least two passage openings (DO1 to DO7...  
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)...  

Matches 401 - 450 out of 7,212