Matches 1 - 50 out of 58 1 2 >


Match Document Document Title
US20140314582 Flow Control  
A pumping system for moving water of a swimming pool includes a water pump and a variable speed motor. The pumping system further includes means for determining a first motor speed of the motor,...
US20140363308 Pumping System with Power Optimization  
The present invention provides a pumping system for moving water of a swimming pool, including a water pump and a variable speed motor. In one example, a target volume amount of water and an...
US20150044062 HOT WATER RECIRCULATION SYSTEM TECHNOLOGIES  
Technologies for use with a hot water recirculation system containing a hot water source, a flow sensor downstream from the source, a booster pump downstream from the sensor, and a plumbing...
US20140172087 METHOD FOR PHYSIOLOGIC CONTROL OF A CONTINUOUS FLOW TOTAL ARTIFICIAL HEART  
A method is provided of controlling a pump including a electrical motor coupled to a rotor which carries first and second impellers at opposite ends thereof. The method includes: (a) driving the...
US20050180857 Fluid circulation pump for heating and conditioning systems and the like  
The present invention relates to a method for measuring a parameter characteristic of a heating and/or conditioning system (1) equipped with a primary hydraulic circuit (6) and a secondary...
US20070114162 Control algorithm of variable speed pumping system  
A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive...
US20110158821 HYDRAULIC CIRCUIT AND METHOD FOR CONTROLLING THE SAME  
A hydraulic circuit includes a pump driven by a motor, an inverter for controlling the motor, and an accumulator. The inverter controls rotational speed of the motor such that the pump always...
US20080124226 ENERGY-CONSERVING VENTILATING FAN  
An electrically driven fan arrangement, suitable for energy-conserving installations, includes a fan, an electric motor (110) serving to drive the fan, and associated control apparatus, namely: a...
US20130108475 Actuator-Driven Pinch Pump  
An actuator-driven pump having a resilient chamber and a plurality of smart material actuators arranged such that activation of each smart material actuator will cause the smart material actuator...
US20080317608 Pump Control System  
A pumping system in which a pump (5) is controlled by a programmed controller (22) in response to input signals from an inlet pressure transducer (3) and an outlet pressure transducer (15) and in...
US20060104824 Detecting medical conditions with noninvasive body probes  
A method and apparatus for improving the diagnostic performance of a probe system (30) for detecting a medical condition in a patient by sensing volume changes in a monitored body part due to...
US20080213101 Shower Wast Pump Control  
A control device (10) for controlling a shower waste pump, comprises a housing (12) which is mountable to a supporting surface, pump setting means (14) located in and/or on the housing (12), and...
US20080245899 PRESSURE WASHER SYSTEM AND OPERATING METHOD  
A pressure washer is provided. The pressure washer can include a frame and a power source coupled to the frame. The power source can include an output shaft. The pressure washer can include a...
US20150167657 PUMPING SYSTEM FOR A WELLBORE AND METHODS OF ASSEMBLING THE SAME  
A pumping system for use in moving a fluid present within a well casing and through a production tubing is provided. The pumping system includes a housing coupled o the production tubing. The...
US20140341751 CONTROL DEVICE FOR A RADIATOR FAN, RADIATOR FAN ARRANGEMENT AND METHOD  
The present invention relates to a control device for a radiator fan, in particular for a radiator fan of a motor vehicle, having an external control device which is designed to generate a...
US20150064023 MOTOR CONTROLLER AND MOTOR CONTROL METHOD  
A motor controller of the present invention comprises units which obtain information indicative of a motor speed (ω) and information indicative of motor torque (T), an air flow calculation section...
US20070183902 ANTI-ENTRAPMENT AND ANTI-DEAD HEAD FUNCTION  
A pumping system includes a water pump for moving water. The pumping system includes means for determining a value indicative of a blockage that inhibits the movement of water through the pumping...
US20070212230 Method for optimizing valve position and pump speed in a PID control valve system without the use of external signals  
The present invention provides an algorithm that utilizes flow reference data which can be mathematically determined as a function of various pump and motor parameters such as speed, torque or...
US20060067833 Integral add heat and surge control valve for compressor  
A compressed air system includes a compressor having an inlet and an outlet. A duct fluidly connects the outlet to the inlet and has a valve arranged in the duct. A controller communicates with...
US20070212229 Method and apparatus for pump protection without the use of traditional sensors  
The present invention provides protection for centrifugal pumps while differentiating between dangerous operating conditions (e.g. dry running, minimum flow and runout) and/or conditions where...
US20050287009 Metered quantity transfer device  
It is an object of the present invention to provide a metering delivery device that is capable of keeping the fluid discharge rate at a predetermined level for a long time by using a metering pump...
US20090304523 Regulator device and method for operating a regulator device  
The invention relates to a regulator device, preferably as a component of a hydraulic circuit, in particular for regulating fluid-bearing units or units that are driven using a fluid, such as...
US20150204322 PUMP SYSTEM HAVING SPEED-BASED CONTROL  
A pump system is disclosed. The pump system may have a power source, a pump, and a torque converter configured to fluidly couple an output rotation of the power source to an input rotation of the...
US20090191065 Feed Pump  
A feed pump with a variable-speed drive for adjustably metering a feed quantity, which is designed as a single-stage centrifugal pump with a radial wheel arranged to rotate, without a sealing gap,...
US20140010667 Device and method for uptake or release of a liquid  
A device and a method for dosing an uptake or a release of a liquid. The device comprises a pump pumping a fluid, a pump drive driving the pump, and a fluid channel connected to the pump. A tip is...
US20100135824 Process for Peristaltic Pump Control  
A peristaltic pump is provided comprising squeezing elements moved by at least one actuator, which squeezing elements act on a tube in which a medium is conveyed, with the squeezing elements...
US20150089999 PULSATION SUPPRESSING AIR FLOW SYSTEM FOR AN AIR SAMPLING INSTRUMENT  
A pulsation and particle suppressing continuous air flow system for air sampling instruments, particularly particle counters. An air pump occupies a portion of a sealed vacuum housing, with the...
US20080221495 Blood pump system user interface alarm management  
User interfaces for medical perfusion systems that provide oxygenation, filtering, and recirculation of blood in connection with various medical procedures are provided. In particular, user...
US20070253831 Method and apparatus for maintaining air characteristics in an air ventilated facility using fan filter units  
A system for maintaining at least one air characteristic in an air ventilated facility using at least one fan filter unit, the system comprising at least one sensor for sensing the at least one...
US20150010408 MOTOR CONTROL APPARATUS AND ELECTRIC PUMP UNIT  
A control unit includes an excessive output suppression control unit which suppresses an excessive output by reducing a current command value from a host control apparatus. A control signal output...
US20090202359 METHOD FOR DETERMINING PUMP FLOW RATE  
The present invention relates to a method for determining a flow rate indicator relating to the output flow rate of one or more activated pumps of a pumping station. The pumping station includes a...
US20070073393 Method and apparatus for pumping blood  
At least one aspect is directed to a totally artificial heart, and at least another aspect is directed to a method of controlling blood flow in a patient. The totally artificial heart may include...
US20090129942 System and Method for Controlling a Progressing Cavity Well Pump  
A system and method for controlling the speed of a progressing cavity liquid well pump to increase liquid production from a well while avoiding operation of the well in a pumped-off state. A...
US20140093396 COMPRESSED GAS PRODUCTION AND CONTROL  
A method and apparatus for producing and controlling flow rate of a compressed gas produced by a compression system having one or more stages of compression formed by a centrifugal compressor or...
US20130129527 ROBUST ELECTRIC SCREW COMPRESSOR BLOCKED AIR LINE DETECTION VIA MOTOR CURRENT MONITORING  
Systems and methods for detecting a blocked air discharge line of an air compressor are described, which include monitoring motor current (IMTR) drawn by a compressor motor, and calculating a...
US20120329166 FLOW REGULATING SYSTEM AND MONITORING DEVICE COMPRISING SAID FLOW REGULATING SYSTEM FOR THE DETECTION OF AIR BORNE ANALYTES  
A flow regulating system for maintaining a stable air flow comprising at least one pump, a mass flow sensor, an ambient temperature sensor, an ambient pressure sensor, a temperature compensation...
US20120237362 LIQUID PRESSURE CIRCUIT  
A liquid pressure circuit is provided in which connecting an accumulator (22) to a high pressure liquid path (Lh) by opening a cut-off valve (24a) and connecting a intake liquid path (Li) to the...
US20070163929 FILTER LOADING  
A pumping system for moving water of a swimming pool includes a water pump, a variable speed motor, and a filter arrangement in fluid communication with the pump. The pumping system can also...
US20050058548 Method of controlling fluid flow  
According to various aspects of embodiments of the invention, the actual flow rate produced by a metering pump is continuously measured using a positive displacement flow meter. Based on the flow...
US20080019842 System and method for controlling compressor flow  
A system for controlling air flow comprises an inlet, a first compressor, a first pressure sensor, a second pressure sensor, a first temperature sensor, and a first controller. The inlet is...
US20070154320 FLOW CONTROL  
A pumping system for moving water of a swimming pool includes a water pump and a variable speed motor. The pumping system further includes means for determining a first motor speed of the motor,...
US20120230840 GAS COMPRESSION  
A method of compressing a gas, which uses a compressor train having a plurality of discrete portions and including at least an upstream portion, a mid-stream portion and a downstream portion...
US20100278659 PRESSURE-CONTROLLING APPLIANCE FOR AN INFLATABLE PRODUCT  
A pressure-controlling appliance for an inflatable product has a inflatable body, a pump mounted in the inflatable body, a pump switch and an inflation-deflation valve. The pump inflates or...
US20150260185 METHOD OF OPERATING A LUBRICATING DEVICE, LUBRICATING DEVICE AND COMPRESSOR WITH SUCH A LUBRICATING DEVICE  
A lubricant supplying device includes a feed pump that serves to pump lubricant from a lubricant reservoir to at least one lubrication point. A method for operating the lubricant supplying device...
US20150176762 APPARATUS AND METHOD FOR CONTROLLING A LUBRIATION UNIT USING FLOW RATE FEEDBACK  
A lubrication unit for delivering lubricant in a system and a method for controlling the unit. The lubrication unit includes a reservoir, a motor, and a pump. The lubrication unit has a flow rate...
US20080286119 Arrangement and method for monitoring a hydraulic system  
An arrangement for monitoring a supply within a platform. A sensor is arranged to generate sample values relating to a fluid characteristic variable, wherein the fluid is fed by the supply within...
US20140345372 MANAGING FLUIDIC CONNECTIONS TO MICROFLUIDIC DEVICES  
A system (e.g., a chromatography system) includes a rotor, a microfluidic device, a rotor driver, a clamping mechanism, and control electronics. The rotor defines a plurality of first...
US20130343909 LIQUID FEED PUMP AND FLOW CONTROL DEVICE  
A liquid feed pump includes a pump housing, a diaphragm forming a pump chamber together with the recessed portion surface and partitioning the pump chamber from the hole, a reciprocating member...
US20090220350 METHOD AND APPARATUS FOR CONTROLLING A HYDRAULIC SYSTEM OF A WORK MACHINE  
A method for controlling a hydraulic system includes receiving an operator command signal via an operator command input device; receiving a throttle position signal from a throttle; retrieving...
US20170175730 ENVIRONMENTAL SENSOR AND METHOD OF OPERATING THE SAME  
A gaseous-fluid environmental sensor having a gaseous-fluid flow system that defines a flow path coupling an intake port to an exhaust port. The gaseous-fluid flow system includes a blower and a...

Matches 1 - 50 out of 58 1 2 >