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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |