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Patent Searching and Data


Matches 401 - 450 out of 7,471

Document Document Title
WO/2012/165048A1
[Problem] To facilitate detection of abnormalities in backflow prevention valves in a water supply system provided with multiple water supply devices which comprise a backflow prevention valve and a pump and are parallel-coupled through ...  
WO/2012/160096A1
A float switch device for submersible pumps comprises a floating member (2) linked to the body of a pump (10) for controlling the starting and the stopping of the same pump (10) according to the level of the fluid. The floating member (2...  
WO/2012/156726A1
This invention relates to programmable electronic device that prevents wastewater submersible and non-submersible pumps as well as viscous pumps from ragging therefore avoiding pump blockage. In one aspect the invention provides a pump a...  
WO/2012/152238A1
The invention relates to a controllable coolant pump for internal combustion engines, for example for internal combustion engines of trucks. The aim of the invention is to develop a controllable coolant pump for motor vehicles, comprisin...  
WO/2012/154971A2
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/2012/121680A3
The subject of the invention is a device for an automatic regulation of pump operation of a sensor microprocessor controller that optimally regulates the operation of a pump. The device of the invention solves the mentioned problems; by ...  
WO/2012/119622A3
The invention relates to a controllable cooling system (1) for a motor vehicle comprising a coolant circuit, which delivers a coolant to an internal combustion engine and draws off coolant therefrom, as well as a mechanically operated co...  
WO/2012/145222A1
Systems and methods to determine the apparent density of a fluid being displaced by a pump. The apparent density may be determined by comparing an expected torque of the pump to an actual torque of the pump. The apparent density can also...  
WO/2012/127783A1
A water distribution pressure control system comprises: a pipe line resistance model generation unit which, on the basis of a discharge pressure measured by a discharge pressure measuring instrument installed between a water distribution...  
WO/2012/123165A1
The invention relates to a regulatable coolant pump for a cooling circuit of an internal combustion engine, comprising a hollow bearing shaft (1) carrying a drive wheel (2) on one end thereof and being secured to an impeller (18) on the ...  
WO/2012/119622A2
The invention relates to a controllable cooling system (1) for a motor vehicle comprising a coolant circuit, which delivers a coolant to an internal combustion engine and draws off coolant therefrom, as well as a mechanically operated co...  
WO/2012/121680A2
The subject of the invention is a device for an automatic regulation of pump operation of a sensor microprocessor controller that optimally regulates the operation of a pump. The device of the invention solves the mentioned problems; by ...  
WO/2012/116676A1
The invention relates to a controllable coolant pump for an internal combustion engine, which is driven by means of a belt pulley. The aim of the invention is to develop a driven controllable coolant pump which among other things ensures...  
WO/2012/116675A2
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 aim of the invention is to develop a device an...  
WO/2011/088976A8
The invention relates to a pump unit, comprising a drive motor (14) and a first housing (2), in which a control electronics unit (18) is arranged for operating the drive motor (14), wherein an operating unit (20) having at least one disp...  
WO/2012/113497A1
The invention relates to a method for the operation of an electric motor-driven pump for optimal power in a hydraulic system having at least one self-regulated load, wherein the desired discharge head (Hsoll) of the pump is regulated dep...  
WO/2012/099242A1
The present invention can control a pump so as to decrease the rotational speed while ensuring a constant flow rate and respond a request for energy saving. Disclosed is a water supply device provided with: a pump that applies pressure o...  
WO/2012/095249A1
A system and a method for controlling the pressure of a fluid in a distribution network (2). The network comprises at least one pump station (4) having a number of pumps (6) that are configured to pressurise the fluid from a supply line ...  
WO/2012/062271A3
The invention relates to a controllable coolant pump having a valve slide, which is mounted displaceably in the pump housing (1) and is provided with throughflow openings (10), and an additional bypass port (11) which opens into the slid...  
WO/2012/021690A3
A pumping system (1) comprising a pump (2) having an electrical drive motor (4) and a control unit (6) configured to control the speed of the electrical drive motor (4). The control unit (6) is configured to receive position information ...  
WO/2011/154674A3
A first detection circuit is provided comprising an optocoupler having an input for receiving an electrical signal and an output to which the electrical signal is transferred from the input; amplification means for amplifying the electri...  
WO/2012/071778A1
A pipeline pump having thermal protection, comprising a motor (10), a handle (16) arranged on the motor (10), a pump body (5) arranged on a motor shaft (10-1), a water outlet (5-2) and a water inlet (5-1) arranged on the pump body (5), a...  
WO/2012/071779A1
A smart pump comprising a housing (5), an outlet cover (13) arranged on the top of the housing (5), a power plug (1) arranged on the outlet cover (13), a circuit board (2) arranged within the housing (5), and a rotor (4) and a stator (6)...  
WO/2012/072601A1
The invention relates to a pump apparatus for a calibration tool of an extrusion plant, which has a separator (11, 111) having at least one fluid inlet (12, 112, 112') for a fluid mixture comprising liquid and gaseous media, at least one...  
WO/2012/069055A1
A pump (P) for pumping liquids containing solids, e.g. waste water, sewage, sludge or manure is disclosed. The first opening (14), which is surrounded by a seat (22) for a rotary wheel (12), acts as an inlet when the pump is active and a...  
WO/2012/062271A2
The invention relates to a coolant pump for internal combustion engines, which coolant pump is driven mechanically by a pulley wheel, a gearwheel, an insert shaft or the like and can be controlled by means of a valve slide. The invention...  
WO/2012/062956A1
Control method and control apparatus of the electric motors of a pump unit of a fire protection system, which fire protection system comprises spray nozzles (112), a pump unit, a control system with pressure-measuring means, and piping (...  
WO/2012/059248A1
Electric-motor motor-vehicle liquid delivery pumps (10) having an electrically commutated motor stator (12) and a permanently excited motor rotor (14), wherein a separating can (16) separates the wet region (22) with the motor rotor (14)...  
WO/2012/052246A1
The invention describes a device and a method for monitoring rotating components in centrifugal pumps or systems which comprise centrifugal pumps, composed of a first unit (1) which is permanently connected to the component to be monitor...  
WO/2011/163521A3
A well watchman pumping and control system capable of operating in a wide range of ambient conditions is described. The system automatically maintains water level in a water storage vessel, while protecting the pump and generator from op...  
WO/2012/032882A1
A monitoring device for a circulation flow path connected to a pump and a filter comprises a rotation indicator, a storage device, and a detector. The rotation indicator is constituted to measure the rotation state of the pump. The stora...  
WO/2012/025289A1
A centrifugal pump having at least one impeller (32), a pump housing and an electrical motor. The pump has a Q-H pump curve (4) having a head H0 (28) at zero flow and a head Href (30) corresponding to the highest hydraulic power and that...  
WO/2012/024778A1
An electric pump comprises an outer housing including a motor cavity and a controller cavity separated by a partition wall. An inner housing is positioned within the motor cavity of the outer housing. One of the inner and outer housings ...  
WO/2011/056319A8
A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate...  
WO/2012/021690A2
A pumping system (1) comprising a pump (2) having an electrical drive motor (4) and a control unit (6) configured to control the speed of the electrical drive motor (4). The control unit (6) is configured to receive position information ...  
WO/2012/004544A1
The invention relates to a water pump (1) comprising a pump housing (10) capable of holding in position at least one shaft (20) to which an impellor (30) is secured, the impellor (30) being driven by a drive pulley (40), characterized in...  
WO/2012/003788A1
Disclosed are a water pump control circuit and a water pump control method. The circuit is connected to a water pump (8), a power source (9), and a voltage Vcc, and comprises: a central control unit (1) having an output terminal capable ...  
WO/2012/003870A1
For a garden pump that is automatically switched off by means of a flow sensor that detects a minimum flow rate, a delay time between the time at which the flow rate falls below the minimum flow rate and the time at which the drive motor...  
WO/2011/163375A1
Systems and methods for employing gauge packages for use with a wet-connect ESPs. In one embodiment, a modular gauge package includes a body, a gauge electronics assembly housed within the body, and a pair of electrical connectors at the...  
WO/2011/163521A2
A well watchman pumping and control system capable of operating in a wide range of ambient conditions is described. The system automatically maintains water level in a water storage vessel, while protecting the pump and generator from op...  
WO/2011/157899A1
A method for obtaining an estimate for a process quantity of a turbomachine comprises measuring (301) first process quantities and calculating (302) an estimate for a second process quantity, for example mass flow, on the basis of the me...  
WO/2011/157459A1
The delivery device (1) according to the invention with automatic regulation of the delivery rate comprises a pump device (2), a suction vessel (3) and a suction sump (4), wherein the suction vessel (3) has a suction chamber (3h) which i...  
WO/2011/154263A1
The domestic appliance W is equipped with a liquid pump 1, wherein the liquid pump 1 has a pre-chamber 2 and a main chamber 3, wherein the pre-chamber 2 has a filling opening 4 for filling liquid K; the pre-chamber 2 and the main chamber...  
WO/2011/154852A1
A pump group (1) for a cooling circuit, in particular for motorcycles, motor vehicles and similar, comprising a pump. (1), a by-pass duct (20) and a self-regulating obturator device (30), positioned at the fork between the exit duct (2) ...  
WO/2011/065711A3
Disclosed are an automatic pump and an operation control method for the same. With the automatic pump and the operation control method for the same, the number of turns in the stator coil of a motor is determined by optionally switching ...  
WO/2011/124963A1
A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller (14, 24) having a processor (26) programmed to repeatedly receive real-time operati...  
WO/2011/123892A1
A pump (10) for processing a fluid comprising a body (11) defining a suction inlet (21) and a discharge outlet (17), and means (31) responsive to a prescribed temperature condition associated with the pump (10). The invention also includ...  
WO/2011/056319A4
A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate...  
WO/2011/120689A1
The invention relates to a method for controlling a fluid conveying system that consists of at least one pump, a consumer, and a fitting with an actuator, in particular a control valve, wherein the pressure and volumetric flow rate of th...  
WO/2011/113588A1
The invention relates to a method for determining a pressure of a medical fluid in a fluid line using at least one centrifugal pump (11), with the pressure being determined upstream of the centrifugal pump (11) taking into account inform...  

Matches 401 - 450 out of 7,471