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8182236 |
Process and device for the high-pressure delivery of a fluid mixture and use of same
A method for the high-pressure delivery of a mixture comprises delivering at least first and second fluids. The method comprises operations consisting in forming a mixture of fluids in a mixing...
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8177519 |
Controller for a motor and a method of controlling the motor
A pumping apparatus for a jetted-fluid system includes a pump having an inlet connectable to the drain, and an outlet connectable to the return. The pump is adapted to receive the fluid from the...
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8177520 |
Controller for a motor and a method of controlling the motor
A method of controlling a motor operating a pumping apparatus of a fluid-pumping application. The pumping apparatus includes a pump having an inlet to receive a fluid and an outlet to exhaust the...
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8172544 |
Operation control device for vacuum pump and method for stopping operation thereof
To provide an operation control device for a vacuum pump and a method for stopping the operation of the vacuum pump that make it possible to effectively remove products, resulting from...
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8172553 |
Small sized heat dissipating fan with outward arrangement of a speed adjuster resistor having a resistance of zero ohms
A small sized heat dissipating fan includes a housing, a stator and a rotor. The housing includes a carrying base to hold the stator and rotor. The stator includes a magnetizing member having a...
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8167593 |
System and method for pump with deformable bearing surface
Systems and methods for pumping fluid comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston or pumping chamber wall including a deformable surface...
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8162620 |
Method for control of a pressurised air supply system for a motor vehicle
A method for control of a pressurized air supply system for a motor vehicle. In a supply condition, the air compressor is driven by the drive motor and connected to a compressed air system of the...
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8162618 |
Method and device for controlling pump torque for hydraulic construction machine
A current load rate of an engine 10 is computed and a maximum absorption torque of at least one hydraulic pump 1, 2 is controlled so that the load rate is held at a target value. Engine stalling...
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8162044 |
Systems and methods for providing electrical transmission in downhole tools
A downhole drilling tool includes a housing defining an axial passageway and a shaft mounted for rotation within the axial passageway such that the housing and shaft form an annular gap. An...
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8162619 |
Method for controlling the discharge pressure of an engine-driven pump
A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the rpms of...
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8157537 |
Method, system, and apparatus for operating a sucker rod pump
Apparatus, methods, and system for wireless remote monitoring and controlling a sucker rod pump for producing hydrocarbons, providing self-adjusting methods for operation over a wide-range of...
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8152496 |
Continuing compressor operation through redundant algorithms
A method of operating a compressor of a compressor system uses three models. Each model of the three models describes a surge line of the compressor as a function of any two of three operating...
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8147211 |
Method and system for monitoring a reciprocating compressor valve
A method for monitoring a condition of at least one valve positioned with respect to at least one of a first chamber and a second chamber of a reciprocating compressor is provided. The method...
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8142168 |
Vibration-driven droplet transport devices having textured surfaces
Methods and devices for moving a droplet on an elongated track on a textured surface using vibration. The elongated track on the textured surface includes a plurality of transverse arcuate...
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8137076 |
Method and system for raising a liquid using a pressurised gas and a buoyant, movable interface member
A method and a device for extracting a liquid from a liquid pond, wherein in a first phase air is removed from an airtight reservoir, a venting and a rising pipe in order to create depression...
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8133034 |
Controller for a motor and a method of controlling the motor
A method of controlling a motor operating a pumping apparatus of a fluid-pumping application. The pumping apparatus includes a pump having an inlet to receive a fluid and an outlet to exhaust the...
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8133035 |
Method for controlling the capacity of a peristaltic pump and peristaltic pump
A method for controlling the flow rate of a peristaltic pump includes compressing a flexible tube, forming at least one occlusion region that moves cyclically downstream from the upstream end of...
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8123504 |
Piston pump for thick materials
In a multi cylinder thick materials pump for feeding concrete in particular, whose at least two feeding cylinders feed the thick material from a pre filling container into a feed line, and a shift...
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8123491 |
Methods and systems for energy exchange
Methods and systems for energy recovery in desalination or other systems are provided to transfer the pressure energy from one fluid to anther fluid. A system for energy recovery with a container...
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8113790 |
Pump assembly
A pump assembly including a pumping element mounted for rotation within a pump chamber, movement of the pumping element in the chamber causing pumping of fluid within the pump chamber, and a motor,...
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8109736 |
Apparatus and method for controlling operation of a linear compressor using a phase difference inflection point detecting unit
An apparatus and method for controlling an operation of a linear compressor by detecting a phase difference inflection point at a time point when a phase difference between a current and a stroke...
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8100668 |
Apparatus and method for controlling operation of a linear compressor using a detected inflection point
An apparatus and method for controlling an operation of a reciprocating compressor are disclosed in which a point of inflection with respect to an operation frequency of the reciprocating...
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8096785 |
Hydraulically driven multicylinder pumping machine
A hydraulically driven multicylinder diaphragm pumping machine has pump cylinders, each having at one end an inlet/outlet for fluid material to be pumped, and at the other end an inlet and outlet...
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8092190 |
Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive
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...
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8087904 |
Hybrid hydraulic-electric RAM pumping unit with downstroke energy recovery
A hybrid hydraulic-electric pumping unit (12) with downstroke energy recovery is disclosed which is operated in a conventional flow mode to supply hydraulic fluid to a hydraulic ram (26), and then...
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8070459 |
Pressure control method
The present invention relates to a method of setting the pressure in a chamber of a vacuum system to a required pressure, the system comprising a pressure control system including a pump for...
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8070458 |
Pump apparatus and method
Pump apparatus and method. The pump can include a valve assembly and a diaphragm. In some embodiments, the diaphragm can include a convolute that can deform in order to increase a volume of a...
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8070456 |
Method for preventing power surge in a compressor supplied by a power converter by direct torque control
A method for operation of a compressor supplied by a power converter having an operating condition (BV) for the compressor (12) supplied by a power converter, generated from a measured actual...
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8066491 |
Reciprocating pump with electronically monitored air valve having battery and solenoid electronic monitoring
An air operated pump (10) uses a magnet (14) mounted in the valve cup (16) of the air motor (18) and two reed sensors (20) mounted in the valve cover (22) to monitor the speed and position of the...
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8057190 |
Method and control unit for operating a linear compressor
A control unit for a linear compressor comprises a current sensor for detecting the current consumption of the linear compressor, a deflection sensor for detecting the deflection of the linear...
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8052399 |
Peristaltic pump
A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is...
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8028409 |
Method of fabricating planar spring clearance seal compressors
In accordance with the method, a gas bearing is energized to center the piston in the cylinder prior to rigidly attaching the planar spring or springs between the piston and the compressor frame....
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8019479 |
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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8011895 |
No water / dead head detection pump protection algorithm
A method and apparatus are provided for controlling the operation of a pump in a pumping system, featuring sensing a no water or dead head condition of the flow of a medium in the pumping system...
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8007247 |
End of stroke detection for electromagnetic pump
Detection of end of stroke for an electromagnetic pump is performed using, for example, a calculated first flux derivative.
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7999502 |
Pumping system
The present invention provides a pumping system (60) comprising: a pumping mechanism (64); a motor (51) for driving the pumping mechanism; a drive control (50) for controlling the motor; and means...
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7993111 |
Power steering pump flow control
An apparatus for preventing noise from occurring due to cavitation in a power steering pump during low temperature start-up includes the addition of a multi-passage orifice element for adding...
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7988426 |
Compressor ported shroud for foil bearing cooling
A compressor ported shroud takes compressed air from the shroud of the compressor before it is completely compressed and delivers it to foil bearings. The compressed air has a lower pressure and...
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7980831 |
Oscillating type compressor
An oscillating type piston is connected to an output shaft of an electric motor through a crankshaft. The piston is provided with a lip ring that slidingly contacts a cylinder. The motor is rotated...
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7976285 |
Electronic control for heavy duty truck compressed air charging system
A method of charging a compressed air storage tank for a vehicle increases the pressure in the storage tank from a first pressure to a second pressure. The method includes determining the first...
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7976286 |
Method and apparatus for pumping liquids using directional growth and elimination bubbles
A method and device for the pumping of liquids utilizes the directional growth and elimination of gaseous vesicles or bubbles to provide the motive or pumping force. In one embodiment, the pumping...
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7976284 |
Pump controller system and method
A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed...
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7972117 |
Pump control system for submersible pumps
A pump control system for a submersible pump is provided. The system includes a pump controller adapted to activate the pump when water has reached a high threshold level and to deactivate the pump...
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7959414 |
Control system and method for protection against breakage of lubricanting-oil film in compressor bearings
The present invention relates to a control system for protection against breakage of the lubricating-oil film in the bearings of hermetic compressors, as well as to a control method that has the...
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7955056 |
Method for controlling a compressed air installation comprising several compressors, control box applied thereby and compressed air installation applying this method
Method for adjusting a compressed air installation using several electrically driven compressors of what is called the “loaded/unloaded” type and/or the turbo compressor type and/or the com...
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7946750 |
Composition for and method of pumping concrete
A composition for and a method of promoting the flow of a concrete slurry through a conduit is provided. The composition is preferably a liquid polymer mixture including water and polyacrylamide...
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7942642 |
Method and apparatus for highly efficient compact vapor compression cooling
The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. The...
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7934303 |
Method of remanufacturing and salvaging hydraulic pumps
A hydraulic pump can be remanufactured to save the investment in its components that are not seriously worn or failed. Some of the worn components, such as the pump barrel and yoke, can be salvaged...
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7931448 |
System and method for manufacturing a brushless DC motor fluid pump
A system and method for manufacturing a brushless direct current (BLDC) motor fluid pump is disclosed. The system includes an electromagnetic forming device, an upper fixture, a lower fixture, and...
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7927080 |
Method for operating a liquid ring compressor
The invention relates to a method of operating a liquid ring compressor having an impeller installed eccentrically in a compressor body, with gas being supplied to the liquid ring compressor on a...
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