Abstract: A fluid-dynamic pump which is suitable for circulating water in an aquarium includes a rotary device, an electric motor configured to move the rotary device, a pump body which houses a printed circuit board which that controls the electric motor and a temperature sensor that detects the temperature of the water of the aquarium. The temperature sensor is positioned on the pump body.

Abstract: A ceiling fan includes a fan body, a sensing unit and a control unit. The fan body includes a base seat, a plurality of fan blades mounted to the base seat, and a motor mounted to the base seat for driving rotation of the fan blades about the base seat. The sensing unit includes an outer casing, a room temperature sensor, and a body temperature sensor. The control unit is mounted to the fan body, in communication with the room temperature sensor, the body temperature sensor and the motor, and operable to adjust a rotational speed of the fan blades by controlling the motor according to a room temperature and a body temperature respectively sensed by the room temperature sensor and the body temperature sensor.

Abstract: A pump apparatus which can more accurately determine the occurrence of an abnormal vibration. The pump apparatus includes: a pump; an electric motor for driving the pump; an inverter as a speed changing means for the electric motor; a vibration detector for detecting at least one of a vibration of the pump, a vibration of the electric motor and a vibration of the inverter; and a controller for controlling the pump. The controller includes a storage unit for storing a measured vibration value measured by the vibration detector. The storage unit has a storage table which, when the rotational speed of the pump is increased stepwise to a predetermined rotational speed, stores the measured vibration value measured at each step.

Abstract: A refrigeration device has an electrical device part which emits noise during operation. A controller operates the electrical device part in a normal operating power range. A noise sensor detects an intensity of the emitted noise from the electrical device part. The controller is configured to change an operating power of the electrical device part within the normal operating power range and to determine a minimum value of the noise intensity which is detected by the noise sensor and to determine a noise-reduced operating power in order to operate the electrical device part at the noise-reduced operating power.

Abstract: The invention provides an air-conditioner for maintaining a temperature of a conditioned space at or near a set temperature. The air-conditioner comprises at least one rotating or reciprocating element adapted to rotate or reciprocate at a variable frequency. The variable frequency including one or more nuisance frequencies at which vibration or noise within the air-conditioner or the conditioned space causes a nuisance. A processor (30) programmed to control variation of the variable frequency in response to operational requirement. The processor is configured to operate the at least one rotating or reciprocating element so as to substantially exclude operation at the one or more nuisance frequencies.

Abstract: A thermostat based control system and method for achieving automatic, periodic reset of refrigerant high and low pressure switches, tripped by temporary condenser water flow interruption, to avoid high humidity issues stemming from prolonged shut-down of water-cooled air conditioning systems in seasonally occupied residential units by automatically and periodically raising the set point temperature to a higher temperature setting for a predetermined period of time whereafter the temperature setting is returned to the user-selected set point temperature. Raising the set point temperature to said higher temperature setting causes said thermostat to terminate a cooling demand signal such that time is provided to allow for a pressure switch associated with the water-cooled air conditioning unit to automatically reset.

Abstract: System for aiding the planing of a planing boat comprising a hull, having a critical transition speed from a displacement sailing and a planing sailing and at least an internal combustion engine comprising means for transmitting an engine displaced power to the water; transmission means defining a gear ratio and identifying a critical speed of rotation of the engine corresponding to the critical speed of the hull; the system comprises a centrifugal supercharger, for supercharging said internal combustion engine, activated by speed multiplying means to be operating in a predetermined interval of speeds of the at least an internal combustion engine including said critical engine speed.

Abstract: Disclosed herein are a washer liquid spraying apparatus and method of a vehicle in which pressure of a sprayed washer liquid is reduced when a washer liquid spraying signal is input in the state in which a sun roof is opened, thereby preventing a washer liquid from spraying into the vehicle through the sun roof, and the reduced pressure of the sprayed washer liquid returns to an original state when the sun roof is closed.

Abstract: Disclosed is a high volume low speed (HVLS) fan that is designed to circulate air in large buildings for cooling, heating, and ventilation. A fan with a diameter between 8 to 24 feet consisting of a plurality of blades, with each in the shape of a tapered airfoil, is driven by a direct drive transverse flux electric motor to produce a very large slowly moving column of air. The HVLS system preferably includes motion and angular shutdown, voltage recognition, blade size recognition and data logging for recording the last 100 or so hours of operation to facilitate warranty applicability and assist in trouble shooting as well as software updates and programming via Bluetooth and internet keypad.

Abstract: A method for controlling the power limit of a pump device includes controlling the power limit of the pump device on the basis of a pump media temperature Tm and an ambient temperature Ta measured inside a control box of the pump device. A pump device, in particular a centrifugal pump, is driven by a motor. The motor is controlled by a control box wherein temperature sensors for measuring a media temperature Tm and an ambient temperature Ta are arranged in the control box so as to control the power limit of the pump device depending on the measured media temperature Tm and an ambient temperature Ta.

Abstract: A washing water pump device includes a washing water pump and a control unit configured to control operation of the washing water pump. The control unit is configured to receive and evaluate signals relating to a state of a vehicle and/or ambient conditions of the vehicle. The power (L) of the washing water pump is dynamically actuatable based on the received and evaluated signals.

Abstract: Compressor including a housing (2) containing a compressor element (6) that is powered by a variable speed motor (7) with a control box (8) with a set maximum number of revolutions (Nmax) for the compressor element (6), an air cooling blower (10) which sucks air from the environment via an inlet (11) and blows it back to the environment through the housing (2) via an exhaust (12) and a cooling circuit (13) for the cooling of the gas which has been compressed by the compressor element (6), further wherein the control box (8) is equipped with an algorithm (24) that reduces the maximum allowed set number of revolutions (Nmax) to a defined level as soon as the monitored environmental temperature (T20) rises above a maximum set level (Tmax), and the maximum allowed set number of revolutions (Nmax) is increased as soon as the environmental temperature (T20) falls below the maximum set level (Tmax).

Abstract: 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 controlled variable for an electric motor of the radiator fan according to a first predefined setpoint value, and having an internal control device which is designed to control the motor current of the electric motor of the radiator fan according to a predefined first motor current maximum value if the controlled variable which is generated by the external control device assumes such a value that the motor current exceeds the predefined first motor current maximum value. The present invention also relates to a radiator fan arrangement and to a method for controlling a radiator fan.

Abstract: A method for calculating the probability of moisture build-up in a compressor includes the steps of sensing a temperature of the ambient air, sensing a discharge pressure of the compressor, sensing a temperature of the compressor, processing the ambient air temperature and operating pressure sensed to obtain a required temperature at which condensation will form, and comparing the temperature of the compressor to the required temperature.

Abstract: A system includes a compressor having a shell housing a compression mechanism driven by an electric motor in an on state and not driven by the electric motor in an off state. The system also includes a variable frequency drive that drives the electric motor in the on state by varying a frequency of a voltage delivered to the electric motor and that supplies electric current to a stator of the electric motor in the off state to heat the compressor.

Abstract: Method and device for controlling a vacuum apparatus. A method for controlling a vacuum apparatus that applies vacuum to a vacuum accumulator with a pump of a pneumatically operated servo unit of a motor vehicle. The method comprises the steps of determining the pressure in the vacuum accumulator; determining the ambient pressure; adapting a pump control signal to the ambient pressure; comparing the pressure in the vacuum accumulator with an adapted pump control signal; and outputting a pump actuation signal that is a function of the comparison.

Abstract: A rotation speed control circuit is disclosed. The rotation speed control circuit includes a temperature-controlled voltage duty generator, a pulse-width signal duty generator, a multiplier and a rotation speed signal generator. The temperature-controlled voltage duty generator converts temperature-controlled voltage to digital temperature-controlled voltage and executes linear interpolation operation according to a first setting data so as to output temperature-controlled voltage duty signal. The pulse-width signal duty generator coverts pulse-width input signal to a digital pulse-width input signal and executes linear interpolation operation according to a second setting data so as to output a pulse-width duty signal. The temperature-controlled voltage duty signal and the pulse-width duty signal are executed for multiplication by the multiplier so as to output mixing-duty signal.

Abstract: Compressor including a housing containing a compressor element that is powered by a variable speed motor with a control box with a set maximum number of revolutions (Nmax) for the compressor element, an air cooling blower which sucks air from the environment via an inlet and blows it back to the environment through the housing via an exhaust and a cooling circuit for the cooling of the gas which has been compressed by the compressor element, further wherein the control box is equipped with an algorithm that reduces the maximum allowed set number of revolutions (Nmax) to a defined level as soon as the monitored environmental temperature (T20) rises above a maximum set level (Tmax), and the maximum allowed set number of revolutions (Nmax) is increased as soon as the environmental temperature (T20) falls below the maximum set level (Tmax).

Abstract: A control system includes an oil pump module and a diagnostic module. The oil pump module, based on engine operating conditions, selectively generates a first mode request signal to initiate a first transition from operating an oil pump of an engine in one of a first pressure mode and a second pressure mode to operating the oil pump in another one of the first pressure mode and the second pressure mode. The second pressure mode is different from the first pressure mode. The diagnostic module, based on when a driver starts the engine, selectively generates a second mode request signal to initiate consecutive transitions from operating the oil pump in the second pressure mode to operating the oil pump in the first pressure mode. The diagnostic module diagnoses a pump fault when a first oil pressure change associated with the consecutive transitions is less than a first predetermined pressure change.

Abstract: Systems and methods for sump pump remote monitoring can include control circuitry integrated into a portable housing, with a backup sump pump connected to the control circuitry. The control circuitry can be powered by a line power and when the line power is not available, the control circuitry can be powered by a battery power. The control circuitry can be connected to a control panel, and the control circuitry can include a pressure transducer, the pressure transducer to measure a pressure in a fluid level sensor, and based on the measured pressure, the control circuitry to adjust the speed of the backup sump pump. A wireless controller can be connected to the control circuitry, the wireless controller for wirelessly receiving monitoring instructions and wirelessly transmitting backup sump pump status data, with the control circuitry providing an indication of the backup sump pump status data to the control panel.

Abstract: A method of controlling an electric compressor of the present invention, comprises the steps of: setting a specified constant rotating speed as a target rotating speed (Rt) of a DC motor (103) (S1); obtaining an actual measurement rotating speed (Rm) which is a measurement value of a rotating speed of the DC motor (103) (S2); adjusting a duty ratio of driving electric power of the DC motor (103) so that the actual measurement rotating speed (Rm) matches the target rotating speed (Rt) (S3); and newly setting the target rotating speed based on a change in the duty ratio (S4).

Abstract: Method and device for controlling a vacuum apparatus. A method for controlling a vacuum apparatus that applies vacuum to a vacuum accumulator with a pump of a pneumatically operated servo unit of a motor vehicle. The method comprises the steps of determining the pressure in the vacuum accumulator; determining the ambient pressure; adapting a pump control signal to the ambient pressure; comparing the pressure in the vacuum accumulator with an adapted pump control signal; and outputting a pump actuation signal that is a function of the comparison.

Abstract: 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 a first rotary pump having an input to receive blood and an output to provide blood to a patient's lungs, a second rotary pump having an input to receive blood and an output to provide blood to the patient's body, a first sensor associated with the first rotary pump, a second sensor associated with the second rotary pump, and a control system coupled to the first sensor, the second sensor, the first rotary pump and the second rotary pump and configured to control characteristics of the first rotary pump and the second rotary pump based on signals received from at least one of the first sensor and the second sensor such that an average flow of blood through the second rotary pump is greater than an average flow of blood through the first rotary pump.

Abstract: In the event of a fire, in some examples, a ceiling fan stops its fan blades at a predetermined position so as to avoid obstructing the spray from an overhead sprinkler head. The fan can be stopped by various apparatus including, but not limited to, a spring loaded roller engaging a lobed member to urge the fan to a chosen stop position, an electromechanical brake that grips a rotating member at certain locations, a stationary magnet attracted to one or more iron pads that rotate to certain locations, and a motor controller responsive to a rotational position sensor.

Abstract: The invention relates to a cooling system for a computer system, said computer system comprising at least one unit such as a central processing unit (CPU) generating thermal energy and said cooling system intended for cooling the at least one processing unit and comprising a reservoir having an amount of cooling liquid, said cooling liquid intended for accumulating and transferring of thermal energy dissipated from the processing unit to the cooling liquid. The cooling system has a heat exchanging interface for providing thermal contact between the processing unit and the cooling liquid for dissipating heat from the processing unit to the cooling liquid, Different embodiments of the heat exchanging system as well as means for establishing and controlling a flow of cooling liquid and a cooling strategy constitutes the invention of the cooling system.

Abstract: An automatically controlled methanol injection system for oil and gas production streams including an electric methanol injection pump and a temperature sensor and switch, the sensor and switch adapted to automatically adjust the injection of methanol as a function of sensed temperature.

Abstract: A water-injected compressor, which injects the water inside the separator 3 into the compressor and discharges the water along with compressed air into the separator and then gains condensed and separated water, has the compressor stopping and then, if staying at a stop for a predetermined duration of time without activating, becoming activated and operating for a set duration of time.

Abstract: Systems and methods for providing an improved strategy for controlling a variable speed water pump in a vehicle. In some embodiments, more than one water pump speed function is calculated based on values obtained from vehicle sensors, and a controller chooses among the water pump speed function results to set a water pump speed. In some embodiments, the water pump speed is increased when driveline torque is greater than a threshold amount for an amount of time that varies based on the driveline torque. In some embodiments, ambient temperature is considered while determining whether the water pump should provide full coolant flow to an auxiliary coolant loop of a trailer.

Abstract: Systems and methods for preventing water from freezing within a pump system. A pump motor is positioned inside a pump housing. A temperature sensor and a motor controller are positioned inside a motor controller housing. A user interface (UI) controller is positioned in a UI housing. A UI is integrated into the UI housing. The UI controller receives a freeze protection temperature setting through the UI reflecting a difference between an ambient temperature at the location of the motor controller housing and an outdoor temperature and determines a freeze protection temperature threshold based on the setting. The UI controller also receives an adjusted temperature value from the motor controller based on the temperature sensed by the temperature sensor. The UI controller activates the pump motor when the adjusted temperature is below the freeze protection temperature threshold.

Abstract: A paddlewheel apparatus including a paddlewheel axle, spaced apart annular wheel hubs locked in rotation with the axle, and a plurality of elongated paddles supported by the wheel hubs and spaced apart therefrom, the paddles being arranged in a zigzagging pattern around the circumference of the wheel hubs. A method for creating current in a bio-pond raceway using a paddlewheel.

Abstract: This invention relates generally to a high volume, buoyancy controlled submersible pump assembly designed to sit on the bottom of a body of water or other liquid substance and move a large volume of water or liquid substance. Alternatively, the submersible pump assembly is capable of achieving and maintaining neutral buoyancy or near neutral buoyancy in a particular body of water or liquid substance. The neutrally buoyant version includes the means to maintain the pump assembly at a given depth without requiring it to sit on the bottom of the body of water or other liquid substance. This invention also relates to linear electrofusion for thermoplastic components.

Abstract: A dry pump apparatus comprises; a pumping mechanism, a controller for controlling the operation of the pumping mechanism, and a sensor for sensing the operating temperature of the pumping mechanism. The controller is configured to carry out an automated shutdown sequence involving the following steps; a) ceasing operation of the pumping mechanism b) monitoring the temperature of the pumping mechanism by means of the temperature sensor c) at least one pre-selected temperature interval, initiating operation of the pumping mechanism for a fixed time period so as to purge a proportion of contaminant particulate matter present until a predefined temperature is reached or a predefined time limit has passed. By carrying out these steps the incidence of powder compaction between component parts of the apparatus which may contract during shutdown, and consequential restart failure and down time, can be significantly reduced.

Abstract: A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.

Abstract: An anti-noise method for the Direct Current Brushless motor System, which includes a startup circuit, phase detective circuit, motor phase commutation circuit, driving circuit, BEMF detective circuit, and frequency detector, utilizes the BEMF detective circuit to detect the BEMF induced from the coils of the outer motor, and utilizes the sampled voltage phase to determine rotation speed and phase of the external motor by the phase detection circuit and frequency detector. Further, the sampling voltage of the BEMF detection circuit is feedback controlled by the frequency detector, utilized to keep good BEMF to noise ratio, and avoids the BEMF sampling error from the system.

Abstract: A method for calculating the probability of moisture build-up in a compressor includes the steps of sensing a temperature of the ambient air, sensing a discharge pressure of the compressor, sensing a temperature of the compressor, processing the ambient air temperature and operating pressure sensed to obtain a required temperature at which condensation will form, and comparing the temperature of the compressor to the required temperature.

Abstract: A safety device for a fuel outlet to prevent delivery of highly combustible fuel to a motor vehicle with a running engine. The safety device comprises a fuel pump for pumping the fuel from an underground tank and into a motor vehicle. The device includes a sound sensor disposed below an area to be occupied by a motor vehicle adjacent to the fuel pump and is adapted to sense the sound of a running engine in an adjacent vehicle and a temperature sensor adapted to detect the engine temperature of an adjacent vehicle. Further, the device or system includes an RF radiation detector adjacent said pump for detecting a running engine, a data analyzer and a control unit for disabling the fuel pump when a running engine is detected in the vicinity of the fuel pump.

Abstract: In a method of operating a compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant from the oil by heating and agitating the mixture of oil and refrigerant in the oil sump. This results in a much more benign forward start as less refrigerant is drawn into the compressor pump and the amount of oil pumped out of the compressor on start up is minimized. Also, the viscosity of oil is increased and lubrication of the bearings is improved. After a short period of time reverse rotation is stopped and the compressor can start rotating in the forward direction. The short period of time of reverse rotation is varied based upon system conditions. In one embodiment, the variation can occur by reducing the reverse run time as ambient temperature increases.

Abstract: The invention relates to improvements in compressors and, in particular, to an improvement in a method of controlling variable speed dynamic compressors to avoid ‘motor overload as a result of choking.1 The invention therefore comprises a method of controlling a compressor to provide compressed gas at a target delivery pressure (Pt) and prevent excessive motor power consumption, the compressor being driven by a variable speed motor which has motor windings, wherein the gas inlet temperature (Tin), gas output delivery pressure (Pd), motor speed (Vm) and the motor winding temperature (Tmw) are continuously measured during operation of the compressor. The gas inlet temperature (Tin) is used to determine a predetermined maximum motor winding temperature (Tmwmax) limit. The maximum motor winding temperature (Tmwmax) is used (to set a maximum motor speed (Vmmax) limit.

Abstract: A paddlewheel apparatus including a paddlewheel axle, spaced apart annular wheel hubs locked in rotation with the axle, and a plurality of elongated paddles supported by the wheel hubs and spaced apart therefrom, the paddles being arranged in a zigzagging pattern around the circumference of the wheel hubs. A method for creating current in a bio-pond raceway using a paddlewheel.

Abstract: A pump comprising a container containing a dispense material, an outlet and an actuator arranged to alternate between a first and a second configuration in response to a change in the pump's environment, which change in configuration causes an aliquot of dispense material to be expelled through the outlet.

Abstract: A fuel pump device includes a fuel pump in which pressure-generating components in the form of a movable piston movable through a cylinder in the fuel pump together are operable to pressurize the fuel in a chamber exposed to the components to high pressure. To prevent the clearance between the pressure-generating components from increasing with increased heating of the fuel pump and to maintain a predetermined clearance between the piston and the surrounding cylinder, a temperature-regulator maintains a temperature within a predetermined temperature range in a region of the fuel pump which includes the clearance and at least portions of the pressure-generating components.

Abstract: A paddlewheel apparatus including a paddlewheel axle, first and second spaced apart annular wheel hubs locked in rotation with the axle, and a plurality of elongated tri-curved paddles cooperatively supported by the first and second wheel hubs and arranged around the circumference of the first and second annular wheel hubs and spaced apart from the paddlewheel axle. A method for creating current in a bio-pond raceway.

Abstract: A ceiling fan includes a connecting portion fixed to a ceiling, an electric motor having a rotation shaft disposed on a lower portion of the connecting portion, a temperature detector provided on a lower portion of the electric motor for detecting a peripheral temperature, and a controller for estimating a room temperature based on the temperature detected by the temperature detector and driving the electric motor according to the estimated room temperature.

Abstract: Pump assemblies, controllers and methods of controlling fluid pumps based on air temperatures are disclosed. One example method of controlling a fluid pump includes determining an air temperature, determining a run time of the fluid pump based on the determined air temperature, and running the fluid pump for a duration corresponding to the determined run time. One example controller for a fluid pump includes a temperature sensor for measuring an air temperature and a processor for controlling a run time of the fluid pump. The processor is operably coupled to the temperature sensor and configured to adjust the run time of the fluid pump based on a predetermined run time and the air temperature measured by the temperature sensor. The pump assemblies, controllers and methods may be used in swimming pools and various other applications.

Abstract: The start control is repeatedly performed for an oil pump that pressure feeds the flow of oil in a motor cooling system. This control is repeated for every specified rise in motor temperature (e.g., every 10° C.) from an initial starting temperature. This arrangement increases the potential for a successful start-up of the oil pump even when the oil has a high viscosity due to a relatively low outside air temperature. In the event of a failed start-up of the oil pump by repeated starting, the start control determines an abnormality exists in the oil pump or its power supply if an outside air temperature is greater than a reference temperature. This arrangement effectively eliminates incorrect detection of an abnormality in the oil pump or its power supply.

Abstract: A hydraulic pump system is provided that includes a pump driven by an electric motor. The electric motor includes windings that receive power from a power source. In one example, a temperature sensor is arranged in proximity to hydraulic fluid associated with the pump, such as at an input of the pump. In another example, the temperature sensor measures the ambient temperature to predict the viscosity of the pump based upon cool down rates of the system. A controller monitors a temperature at the temperature sensor and commands power to be provided to the windings to generate heat. Electric motor power consumption can be monitored to determine viscosity. The heat reduces the viscosity of the hydraulic fluid. Bleed air may be selectively provided to a casing associated with the hydraulic fluid in response to a command from the controller. The controller actuates a valve to regulate the flow of bleed air to the casing to provide supplemental heat to the heat provided by the windings.

Abstract: A system for controlling a heating and cooling system for use on a machine includes a condenser, an evaporator assembly, an electric motor driven compressor, and a master controller operable to determine and regulate an operational speed of the compressor. The master controller includes a plurality of control algorithms each receiving respective dynamic input information and outputting a respective controller speed request based upon the respective dynamic input information.

Abstract: An automatically controlled methanol injection system for oil and gas production streams including an electric methanol injection pump and a temperature sensor and switch, the sensor and switch adapted to automatically adjust the injection of methanol as a function of sensed temperature.

Abstract: An engine control system for a vehicle comprises a pump control module and a heating request determination module. The pump control module disengages a switchable water pump from an engine upon startup of the engine. The heating request determination module generates a heat request signal that indicates whether heating of a passenger cabin of the vehicle has been requested based on ambient air temperature, humidity of ambient air, and a status of an air conditioner clutch. The pump control module selectively engages the switchable water pump after the heat request signal is generated.

Abstract: A system includes a compressor, a control unite and a clutch assigned to the compressor. The control unit is suitable for opening and closing the clutch in order to economize energy. The control unit is suitable for carrying out a monitoring routine during which the clutch is opened or closed in order to prevent the clutch, the compressor and the components arranged downstream of the compressor from being damaged. A method for controlling the system, including the compressor, the control unit and the clutch associated with the compressor, is also provided.