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Patent Searching and Data


Matches 351 - 400 out of 7,471

Document Document Title
WO/2013/141698A1
The fluid flow of a fluid displacement device (100) provided with an electric motor (120) may be set on the basis of a power and control unit (90). Thereto, a power circuit generally comprising an inverter (30), such as a frequency inver...  
WO/2013/130536A1
A method of breaking a gas lock in an electrical submersible pump, comprising: a) monitoring a measured value related to the electrical current used by a pump motor connected to and providing power to the pump; b) comparing the measured ...  
WO/2013/130524A1
A method of controlling an electric submersible pump, comprising: a) monitoring the pressure at the suction and discharge of the pump; b) calculating the pressure difference between the discharge and suction pressure; and c) controlling ...  
WO/2013/120542A1
The invention refers to a mechanical coolant pump ( 10) for an internal combustion engine. The pump 10 comprises an impeller pump wheel ( 14) pumping the liquid coolant incoming in axial direction radially into an outlet volute ( 16), a ...  
WO/2013/093001A3
In a pump housing (39) having an interior for accommodating a pump rotor (10'"), which may be transferred from a radially compressed state into a radially expanded state, and comprises a housing skin revolving in circumferential directio...  
WO/2013/120514A1
The invention refers to a mechanical coolant pump ( 10) for an internal combustion engine, comprising an impeller pump wheel ( 14) pumping the liquid coolant incoming in axial direction radially into an outlet volute (16), a pump housing...  
WO/2013/120543A1
The invention refers to a mechanical coolant pump (10) for an internal combustion engine, comprising an impeller pump wheel (40) pumping the liquid coolant incoming in axial direction radially into an outlet volute (13), a pump housing (...  
WO/2013/117402A1
The pump housing is a spiral housing and has a suction channel (14) opening into a space (15), which is designed for the arrangement of an impeller rotatable about an axis of rotation (5), and has a spiral-shaped circumferential channel ...  
WO/2013/045102A3
A method for monitoring the operational state of a pump (10) comprises acquiring a set characteristic diagram of the pump (10), the characteristic diagram of the pump (10) being defined by a functional relationship between a first pump o...  
WO/2013/113066A1
A system for measuring real time efficiency/performance of at least one pump in a plant or other facility includes a plurality of monitoring devices disposed in relation to said at least one pump to measure power usage, pump speed and fl...  
WO/2013/113827A1
The present invention relates to a passive shutdown sealing device (20) for a reactor coolant pump unit comprising: a split sealing ring (23) having an inactivated position in which a leakage flow is permitted and an activated position i...  
WO/2013/102599A1
The present invention relates to a passive shutdown sealing device (20, 40) for a primary motorized pump unit comprising a series of thermal bimetal strips (21, 41) having a first position, known as the cold position, when the temperatur...  
WO/2013/098456A1
The invention relates to a method and device (1) for triggering the stopping of a hydraulic pump (2) having adjustable rotational speed in a hydraulic plant pre-set to a set pressure (Pc), said method comprising the steps of: comparing (...  
WO/2013/092144A1
A pump (1) for pumping highly viscous fluids is presented that includes a casing (3), an inlet (7), an outlet (8) and a closed impeller (5) rotatably arranged in the casing between the inlet and the outlet and that has a side room (6) be...  
WO/2013/092603A1
The present invention refers to a device (1) for water circulation in a cooling circuit of an internal combustion engine (3). The device comprises a pump and a suction chamber (8) which develop in a circular way around the axis of the pu...  
WO/2013/096726A1
The invention relates to a method for controlling a pump arrangement comprising a pump (2) having a motor (7) and a control unit (6), said motor (7), when the pump (2) is in an active state and the motor (7) is driven in a first directio...  
WO/2013/093001A2
In a pump housing (39) having an interior for accommodating a pump rotor (10'"), which may be transferred from a radially compressed state into a radially expanded state, and comprises a housing skin revolving in circumferential directio...  
WO/2013/087236A2
A controllable coolant pump (10) for a cooling circuit of an internal combustion engine having a pump housing (12) with an inner bore (14), in which a shaft (20) which can be driven via a pulley is mounted rotatably by way of a first bea...  
WO/2013/083217A1
The invention relates to a method for monitoring the function of a pump (1) which is driven by an electric motor and which has an internal electronic system (4), functional parameters of the pump (1) being monitored by means of said elec...  
WO/2013/075855A2
The invention relates to a controllable coolant pump (1) of a cooling circuit for an internal combustion engine, having a pump housing (2), in which a pump shaft (3) with associated impeller (8) is rotatably arranged. The impeller (8) co...  
WO/2013/041616A9
The invention relates to a pump unit (2) having an electrical drive motor (5) and a control device (4) for controlling the drive motor (5), wherein said control device (4) comprises at least one microprocessor (8) and storage means (6) w...  
WO/2013/070547A1
A turbomachine system and method, with the system including a slug detector coupled to a main line to detect a slug flow in a multiphase fluid in the main line. The system also includes a compressor fluidly coupled to the main line and d...  
WO/2013/068016A1
The present invention relates to a method of controlling the rotating speed of an impeller of a pump. The impeller is driven by an electrical motor having an adjustable rotating speed, and the method determines a correction to an actual ...  
WO/2013/064857A1
The invention is a device for the transmission of power by means of rotating magnetic fields, comprising a drive shaft (2) with an external magnet (3), a pump shaft (4) with an internal magnet (5) suited to entrained by said external mag...  
WO/2012/062650A3
The invention relates to a pump unit having an electric motor comprising a stator (12), a rotor (4) and a can (14) arranged between the stator (12) and the rotor (4), and at least one impeller (6) connected to the rotor. The electric mot...  
WO/2012/062639A3
The invention relates to an electric motor, comprising a stator (4), a rotor (8), and a can (6) arranged between the stator (4) and the rotor (8), wherein the stator (4) has a plurality of stator pole pairs (26), each of which is formed ...  
WO/2012/095274A3
The invention relates to a method for operating a pump that is driven by an electric motor in a hydraulic system in a power-optimized manner in the event of very low volumetric flow rates (Q). The target delivery head (H) of the pump is ...  
WO/2013/059925A1
A method for determining flow in a medium, comprising applying thermal energy to at least one probe of a pair of probes, the probes configured for placement in the medium and varying the applied thermal energy of the at least one probe t...  
WO/2013/056856A1
Disclosed is an adjustable coolant pump for a cooling circuit in an internal combustion engine, comprising a hollow bearing shaft which is accommodated in a bearing sleeve, supports a drive gear at one end, and is permanently connected t...  
WO/2013/056855A1
Disclosed is an adjustable coolant pump for a cooling circuit in an internal combustion engine, comprising a hollow bearing shaft which is accommodated in a bearing sleeve, supports a drive gear at one end, and is permanently connected t...  
WO/2012/062637A3
The invention relates to a pump unit comprising an electric drive motor and an electronic control device. Said control device is divided into two functional modules arranged on at least two separate printed circuit boards, a first functi...  
WO/2013/028440A3
The system and method for determining the operational condition of an electric fuel pump (16). The test apparatus (22) is configured to perform first, second and third tests. During the first test, a low voltage, low current signal is ap...  
WO/2012/062636A3
The invention relates to a pump unit having an electric drive motor provided with a stator housing (2) and at least one terminal box (14) connected to the stator housing, said terminal box (14) containing at least one partition wall (30)...  
WO/2013/051290A1
A pump device (1A) is provided with the following: an impeller (2) which rotates around a rotational axis (A); an inflow passage (10a) which extends along the rotational axis (A) of the impeller (2); a vortex chamber (10b) provided aroun...  
WO/2012/154971A3
A method and system for metering liquid production at a well comprises an actuated back pressure control valve, a liquid pump, a liquid flow meter and a pressure sensor, both intermediate the liquid pump and the back pressure control val...  
WO/2013/045102A2
A method for monitoring the operational state of a pump (10) comprises acquiring a set characteristic diagram of the pump (10), the characteristic diagram of the pump (10) being defined by a functional relationship between a first pump o...  
WO/2013/041616A1
The invention relates to a pump unit (2) having an electrical drive motor (5) and a control device (4) for controlling the drive motor (5), wherein said control device (4) comprises at least one microprocessor (8) and storage means (6) w...  
WO/2012/173551A4
The invention relates to a method for automatic mutual alternation between an arbitrary number of pumps by the control of an individual pump, which makes use of a start condition for a state change from an inactive state of the pump into...  
WO/2013/034189A1
The invention refers to a switchable automotive coolant pump (10; 10') with a pulley wheel (18) fixedly supported by a rotor shaft (12; 12'), a shaft sealing (13) separating the a dry section (D) from a wet section (W) with respect to th...  
WO/2012/138650A3
A rotational speed governor for an air motor comprises a housing, a valve, a shaft, a cross-bar, a plate and a pair of weights. The housing has an air inlet and an air outlet. The valve is disposed between the air inlet and the air outle...  
WO/2013/020181A1
The invention resides in a swimming pool pump which is able to operate at a low speed and a high speed, the pump automatically switched between the low speed and the high speed each time power is supplied to the pump.  
WO/2013/014832A1
Provided is a space-saving pumping device that is capable of performing variable speed operation control by the pumping device alone while reliably dissipating heat. The pumping device is constructed by integrating a pump unit with an im...  
WO/2013/010683A1
A coolant pump (1) for a coolant circuit of an internal combustion engine with a drive wheel (4) driven preferably via a belt drive, which drive wheel is connected to an impeller (5) via a drive shaft (3, 29) rotatably mounted in a pump ...  
WO/2012/173551A3
The invention relates to a method for automatic mutual alternation between an arbitrary number of pumps by the control of an individual pump, which makes use of a start condition for a state change from an inactive state of the pump into...  
WO/2012/116675A3
The invention relates to a device and method for the defined longitudinal shifting of an adjusting device which rotates along in a drive shaft, along the center axis of the drive shaft. The solution according to the invention is characte...  
WO/2012/174718A1
Disclosed are a single-phase permanent magnet rotor electric pump only rotating in a right direction and its realization method. The method comprises the following steps: controlling the size of a water chamber (3) within a water pump bo...  
WO/2012/173552A1
The invention relates to a method for controlling at least a part of a pump station comprising a number of speed controlled pumps, the method is arranged to minimize the specific energy consumption Espec of said at least a part of a pump...  
WO/2012/173551A2
The invention relates to a method for automatic mutual alternation between an arbitrary number of pumps by the control of an individual pump, which makes use of a start condition for a state change from an inactive state of the pump into...  
WO/2012/167961A1
The invention relates to a coolant pump for a cooling circuit of an internal combustion engine, comprising a pump housing (1) in which a drivable shaft (2a) is mounted, at the one end of which drivable shaft impeller (4) is fastened. Sai...  
WO/2012/167953A1
The invention relates to a coolant pump for a coolant circuit of an internal combustion engine, comprising a pump housing (7), in which a drivable shaft (2a) is mounted, to one end of which shaft a rotor (4) is fastened. The rotor compri...  

Matches 351 - 400 out of 7,471