|
Match
|
Document |
Document Title |
|
|
7628591 |
Apparatus and method for controlling operation of compressor
An apparatus for controlling a compressor includes a stroke calculator for calculating a stroke estimate value of a compressor based on a value of a current applied to a motor of the compressor and...
|
|
|
7621721 |
Vacuum pumping device with electronic control of the motor
An oil mechanical vacuum pump, which is equipped with an electric motor comprises an electronic control device for supplying the electric motor with power. The electronic control device comprises a...
|
|
|
7618243 |
Linear compressor controller
A free-piston linear compressor ( 1 ) controlled to achieve high volumetric efficiency by a controller including an algorithm ( 116 ) for ramping up input power until piston-cylinder head...
|
|
|
7588422 |
Pump driving method and device therefor
A pump driving apparatus has a characteristic changing section which receives a set pressure, a set flowing amount, a set horse power, and a DC voltage of the converter section as input, outputs...
|
|
|
7578658 |
Control for integrating compressor-turbine-motor train with power grid
A method of controlling a compressor turbine motor train including: receiving a control signal from a plant process controller; receiving a feedback signal indicative of a state of the electrical...
|
|
|
7572108 |
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...
|
|
|
7547197 |
Driving controlling apparatus for linear compressor and method thereof
A driving controlling apparatus for a linear compressor, comprises a controlling unit for detecting a TDC by a phase difference inflection point between a stoke and a current with increasing the...
|
|
|
7534096 |
Method and system for improving pump efficiency and productivity under power disturbance conditions
A system for controlling operation of a progressing cavity pump to maintain the motor operating under power disturbance conditions. For a blackout condition, a backspin controller uses regenerative...
|
|
|
7520730 |
Apparatus and method for controlling operation of compressor
An apparatus for controlling an operation of a compressor includes: a back electromotive force calculator for calculating a back electromotive force of a compressor based on a value of a current...
|
|
|
7468588 |
Apparatus and method for controlling operation of reciprocating compressor
The present invention relates to an apparatus and method for controlling operation of a reciprocating compressor. The operating efficiency of the compressor can be improved by performing the steps...
|
|
|
7466098 |
Method for controlling operation of compressor and apparatus thereof
A method for controlling an operation of a compressor and its apparatus can easily control an operation of the compressor without a request for a high-priced operation control apparatus by...
|
|
|
7453229 |
Apparatus and method for controlling operation of reciprocating compressor
An apparatus and method for controlling the operation of a reciprocating compressor are capable of preventing distortion of a current applied to the reciprocating compressor by generating a current...
|
|
|
7444824 |
Unitary control for air conditioner and/or heat pump
A unitary control for operating at least the fan and compressor of a climate control apparatus in response to signals received from a thermostat, the unitary air conditioning control includes a...
|
|
|
7435059 |
Flow controlled blood pump system
A system for pumping blood to assist or assume the cardiac function of a patient is characterized by a blood pump that exhibits a steep performance curve such that only small changes in pump flow...
|
|
|
7437215 |
Method and system for improving pump efficiency and productivity under power disturbance conditions
A system for controlling operation of a progressing cavity pump to maintain the motor operating under power disturbance conditions. For a blackout condition, a backspin controller uses regenerative...
|
|
|
7405529 |
System and method for controlling linear compressor
A system for controlling a linear compressor, generates freezing force as a piston reciprocates according to rotation of a motor which receives alternating current power through a triac. The system...
|
|
|
7385368 |
Apparatus for controlling operation of reciprocating compressor
An apparatus for controlling an operation of a reciprocating compressor includes a inductance increasing device connected to a motor of the reciprocating compressor, so that a surge current...
|
|
|
7323845 |
Apparatus for controlling operation of compressor and method therefore
Provided is an apparatus for controlling an operation of a compressor which can always apply a constant voltage to the compressor without noise and a method therefor. The apparatus for controlling...
|
|
|
7314350 |
Energy store circuit for controlling rotor rotation
A fan controller for controlling the rotation of a rotor (with a fan blade) has a current limiting element to control current flow to a capacitive storage apparatus. More specifically, the fan...
|
|
|
7267531 |
Current monitoring system and method for metering peristaltic pump
A pump system includes a peristaltic pump having a rotor, a motor and a controller. The motor is configured to drive the peristaltic pump so as to deliver a liquid product from a source to a...
|
|
|
7259533 |
Method of controlling motor drive speed
Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase...
|
|
|
7217103 |
Gaseous fluid compressor control system
A system for optimizing compressor output flow when a maximum power consumption limit exists and the compressor inlet pressure can vary. Utilizing the invention the maximum compressor output flow...
|
|
|
7168924 |
Rod pump control system including parameter estimator
A rod pump control system includes a parameter estimator that determines from motor data parameters relating to operation of the rod pump and/or downhole dynamometer card without the need for...
|
|
|
7163381 |
Pump and method of pump control
A pump includes a motor and a motor control in operative connection with the motor. The motor control provides energy input to the motor to drive the motor and receives feedback from the motor of...
|
|
|
7163380 |
Control of fluid flow in the processing of an object with a fluid
An apparatus for and methods of control of a fluid flow. In a system for supercritical processing of an object, the apparatus includes a measuring device for measuring a pump performance parameter...
|
|
|
7156873 |
Methods for detecting an abnormal condition of a blood pump system
The present invention provides methods for detecting an abnormal condition of a blood pump system based on the power consumption of the pump actuator. By plotting differentiated power consumption...
|
|
|
7118347 |
Method for activating an electric motor and a metering pump by supplying predetermined pulse intervals to supply predetermined fluid quantities
The methods serves for activating an electric motor of a metering pump with which the fluid quantity (V nom ) to be delivered is set by an external impulse trigger, wherein a predetermined delivery...
|
|
|
7100382 |
Unitary control for air conditioner and/or heat pump
A unitary control for operating at least the fan and compressor of a climate control apparatus in response to signals received from a thermostat, the unitary air conditioning control includes a...
|
|
|
7090470 |
Apparatus and method for preventing a piston and valve collision in a linear compressor
An apparatus and method for controlling a linear compressor is provided. The linear compressor controlling apparatus includes a voltage detection unit, a current detection unit, a control unit and...
|
|
|
7033147 |
Centrifugal fluid pump assembly with flow rate calculating section
A centrifugal fluid pump assembly includes a body section and a control mechanism 6. The body section includes a housing, an impeller rotatable within the housing, and a motor for rotating the...
|
|
|
6987373 |
System and method for starting pump
A starting system for a pump includes a driving motor, an electric source, a selector switch, a starter sensor, a temperature sensor and a control unit. The selector switch is located between the...
|
|
|
6960893 |
Driving apparatus of a linear motor
A driving apparatus of a linear motor which reciprocally drives a movable element supported by an elastic member, includes an inverter that converts a direct current power into an...
|
|
|
6954040 |
Method of controlling a reciprocating linear motor
A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one...
|
|
|
6941785 |
Electric fuel pump condition monitor system using electrical signature analysis
A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having...
|
|
|
6932696 |
Cooling system including redundant fan controllers
A cooling system including redundant fan controllers. The cooling system includes a first fan controller coupled to control a first plurality of fans and a second fan controller coupled to control...
|
|
|
6874993 |
Method for controlling an electric pump
A control method for an electric pump adapted to supply pressurised operating fluid to actuators of an automatic transmission in order to cause the opening/closing of the clutch and the selection...
|
|
|
6869272 |
Electric compressor and control method therefor
When an electric compressor is activated, initial current data is selected by a selector, and a motor is driven with the torque corresponding to the initial current data. When the motor is driven...
|
|
|
6864647 |
Linear motor
The present invention provides an improved design of linear motor as well as an improved control strategy. The design allows for a shorted stator, where the armature magnets are controlled to...
|
|
|
6857858 |
Device and method for controlling piston position in linear compressor
Device and method for controlling a piston position in a linear compressor, having a power source, a triac, and a motor, the device including a current phase detecting part for detecting a current...
|
|
|
6851934 |
Stroke control apparatus of reciprocating compressor and method thereof
In a stroke control apparatus of a reciprocating compressor and a method thereof, the stroke control apparatus of the reciprocating compressor includes a reciprocating compressor, a current...
|
|
|
6840735 |
Centrifugal fluid pump apparatus
A centrifugal fluid pump apparatus includes a control mechanism; and a body 5 including a pump section having an impeller rotating inside a housing; a rotor having an impeller attraction magnet;...
|
|
|
6832898 |
Driving apparatus of a linear compressor
In a driving apparatus of a linear compressor 1 having a power source capable of controlling output current and measuring output electric power, frequency of the linear compressor 1 is...
|
|
|
6811380 |
Apparatus and method for controlling linear compressor
An apparatus and method of controlling a linear compressor. The apparatus includes a current detection unit to detect current, a control unit to determine whether a collision between a piston and a...
|
|
|
6779982 |
Apparatus for controlling driving of reciprocating compressor and method thereof
Disclosed is an apparatus for controlling a driving of a reciprocating compressor and a method thereof, in which a cooling capacity is decreased without a re-expansion loss by controlling a driving...
|
|
|
6753665 |
Linear compressor drive device
A linear compressor driving apparatus having an inverter which supplies a driving current of a predetermined frequency to a linear compressor. The linear compressor driving apparatus further...
|
|
|
6746211 |
Operation control method utilizing resonance frequency of reciprocating compressor
An operation control method of a reciprocating compressor is disclosed in which, in case that a motor is overloaded, an operation frequency is increased to render magnetic fluxes of a magnet and an...
|
|
|
6747424 |
Integrated fan speed control and fault detection circuitry
Aspects for integrating speed control and fault detection in a fan assembly are described. The aspects include a fan, a first circuit is coupled to the fan for regulating speed of the fan, and a...
|
|
|
6715996 |
Method for the operation of a centrifugal pump
A method for the operation of a centrifugal pump ( 2 ) driven by an electric motor ( 5 ) with variable frequency, wherein too small a flow through the pump ( 2 ) is ascertained by monitoring...
|
|
|
6709240 |
Method and apparatus of detecting low flow/cavitation in a centrifugal pump
The present invention is directed to a centrifugal pump wherein voltage and current data are detected from voltage and current sensors in the pump motor. A power signal is then generated from the...
|
|
|
6705102 |
Vehicular air-conditioner
An air conditioning system for a vehicle that is driven by a vehicular power source. The system has a compressor selectively operable by the vehicular power source and an electric motor. The...
|