Abstract: A pump system or device is provided for removing water from a pool cover or sump, featuring a controller configured to respond to a signal containing information about the ambient temperature in relation to a pump and to provide a controller signal containing information to control the operation of the pump based at least partly on the ambient temperature. The pumping system or device me be configured to include some combination of the following: temperature sensing, including a Thermistor, to change control logic at temperatures below a specific level (e.g. below 35 degrees F.

Abstract: In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.

Abstract: The present invention discloses a cooling-fan rotation-speed control circuit, wherein a plurality of sets of input power sources respectively having different voltages is electrically and parallel coupled to a cooling fan; a switch is installed between at least one input power source and the cooling fan; the switch is turned on/off according to a rotation-speed parameter to determine whether the cooling fan is driven by a low-voltage driving power or a high-voltage driving power.

Abstract: A system and method are provided to control the output capacity of a compressor in response to the outdoor ambient temperature. The outdoor ambient temperature is measured by a sensor. The measured outdoor ambient temperature is then used to control the output capacity of the compressor. The compressor is operated at less than 100% capacity in response to the outdoor ambient temperature being less than or equal to 95° F. If the outdoor ambient temperature reaches a predetermined temperature greater than 95° F., the compressor is then operated at 100% capacity.

Abstract: A method and apparatus to reduce dust particles accumulated on one or more surfaces provisioned proximate to the pulsating fan. The surfaces may include a heat exchanger provisioned proximate to the pulsating fan and the blades of the pulsating fan or any other such surface. The pulsating fan may be rotated in a first direction for a first time duration and in a second direction for a second time duration. The dust particles that are accumulated on the one or more surfaces provisioned proximate to the pulsating fan is reduced while the pulsating fan is rotated in the second direction. The second direction of rotation is reverse to the first direction of rotation. The pulsating fan may comprise an axial fan or a centrifugal fan.

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 means 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: Multi-stage air movers for cooling computers and other systems are described herein. In one embodiment, a computer system includes a computer cabinet holding a plurality of computer modules. The computer cabinet includes an air inlet and an air outlet. The computer system further includes a multi-stage air mover configured to move a flow of cooling air from the air inlet, past the plurality of computer modules, and out the computer cabinet via the air outlet.

Abstract: An auxiliary oil pumping system for an automatic transmission includes an auxiliary oil pump, the auxiliary oil pump being separate from an internal oil pump of the transmission but connected to an oil circuit of the automatic transmission to circulate oil in the system. An oil pump motor is connected to the auxiliary oil pump and selectively connectable to a power source for driving the auxiliary oil pump when a vehicle engine is off and the internal oil pump is not operating.

Abstract: A system is provided that includes a torch power unit that includes a compressor and a controller configured to adjust output of the compressor in response to feedback comprising compressor output, or altitude, or atmospheric pressure, or a combination thereof. A method is provided that includes adjusting operational parameters of a torch power unit to account for environmental conditions affecting performance of the torch power unit. A method of manufacturing a portable cutting torch system is also provided. Another system is provided that includes a plasma cutting circuit, a compressor, a motor coupled to the compressor, an interface, and an environmental feedback controller.

Abstract: Described herein is technology for, among other things, controlling a pump submersed in a liquid, where the pump includes a plurality of capacitive sensors. The capacitive sensors include a first capacitive sensor and a second capacitive sensor disposed above the first capacitive sensor. The technology involves sensing liquid levels with the capacitive sensors, activating the pump after the second capacitive sensor detects the liquid in a normal mode of operation, deactivating the pump after the first capacitive sensor no longer detects the liquid in the normal mode of operation, detecting a failure of one or more capacitive sensors, and adjusting the operation of the pump to compensate for the failure of the one or more capacitive sensors.

Abstract: A marine water conversion apparatus capable of pumping ocean surface water several hundred feel below the surface to cause sufficient cooler water to rise to the surface to prevent formation of or to moderate hurricanes. The apparatus is remotely controlled and includes a propulsion system for moving it to a new location or in predetermined patterns through use of a global positioning system and computerized controls. Power for driving the pumps may be provided by a wind turbine driven electric generator at the upper end of an upper tube section pivotally connected to a float tank on a vertical axis.

Abstract: In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.

Abstract: A method for operating a gas-supply system, particularly for a gas turbine, having a gas-carrying pipeline, a controllable compressor arranged in the pipeline and at least one consumer connected to the pipeline and located downstream from the compressor. The compressor is regulated as a function of a comparison between the setpoint discharge pressure of the compressor and the actual discharge pressure of the compressor. The energy consumption of the compressor can be reduced in that the setpoint discharge pressure of the compressor is determined as a function of a setpoint admission pressure of the consumer.

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: A computer monitoring system for controlling the operation of a sump pump, and reporting failure of the sump pump. The computer monitoring system includes a sump pump designed for pumping water out of a sump pit, a level sensing assembly positioned within the sump pit for detecting a level of water in the sump pit, and a control interface program operationally interacting with the conventional information handling system and operationally coupled to the sump pump and the level sensing assembly through the conventional information handling system for activating the sump pump when the level sensing assembly signals that water in the sump pit has reached a predetermined level.

Abstract: If the ambient temperature of a pressure volute measured by a temperature sensor exceeds 0° C., a compressor is instantly started at normal operation. If the temperature of the pressure volute measured by the temperature sensor is 0° C. or lower, there is a possibility that a rotary vane may be adhered to the pressure volute due to a congelation. Therefore, vibration along the axial direction is given to the rotary shaft by way of an axial magnetic bearing. If the vibration amplitude of the thus given vibration exceeds a predetermined value, the compressor is started at normal operation after idle operation. On the other hand, if the vibration amplitude is lower than a predetermined value, it is determined that the thus given vibration is unable to eliminate the adhesion of the rotary vane due to the congelation, and the heater is actuated to heat the pressure volute only for a predetermined time. Thereafter, the ambient temperature is detected again, and if the ambient temperature exceeds 0° C.

Abstract: A method and system are disclosed for adjusting the torque of a motor for a HVAC actuator based upon one or more operating conditions of the HVAC actuator. One illustrative HVAC actuator includes an actuated part, a motor for providing a torque to move the actuated part, a detector for detecting an operating condition in or around the HVAC actuator, and a controller for adjusting the torque in accordance with the detected operating condition.

Abstract: The present invention aims to appropriately cool an operation unit and to suppress power consumption and noise according to the configuration and the operation state in a computer system of an enclosure. A plurality of system cooling fans for cooling the operation unit of the computer system installed in the enclosure and an enclosure management module for controlling the rotation of each system cooling fan are arranged, where the enclosure management module stores in advance the supply cooling amount which is to be supplied to the operation unit by each system cooling fan, acquires information related to a temperature of the operation unit and calculates a necessary cooling amount which is to be required in the operation unit based on the information, and determines the rotation number of each system cooling fan based on the supply cooling amount and the necessary cooling amount.

Abstract: A body of water is aerated by propelling in the body of water a water pumping arrangement including a sheath having a turning propeller that (a) sucks water from the body into the sheath interior via openings in the sheath, (b) forces the sucked water upwardly and (c) forces the upwardly forced water through another opening in the sheath below the surface of the body of the water. Water forced through the another opening (i) has speed greater than the speed of the water sucked into the sheath and (ii) causes air bubbles to be induced in the water above the another opening.

Abstract: A single pump control unit can be coupled to first and second float switches and a pump for purposes of removing fluid from a region such as a sump. A supplemental set of contacts can be provided to couple an alarm indicating signal to a remote alarm. An alarm state can also be transmitted wirelessly.

Abstract: An apparatus for controlling a variable displacement compressor has an information detector and a controller. The information detector detects information about the thermal load on the refrigeration circuit. The controller determines a target value that reflects the displacement of the compressor based on the information about the thermal load detected by the information detector, and outputs the target value as a command value. When determining that the compressor is in a heavy load state based on information about a load on the compressor, the controller changes the command value to a value that causes the displacement of the compressor to become smaller than a displacement that corresponds to the determined target value.

Abstract: A compressor unit includes a compressor, an inverter for driving the compressor, and an over-current protective device for protecting the inverter against an output over-current. A control part controls the output voltage of the inverter when the compressor is started based on a ambient temperature detected by a temperature sensor so that the input current of the inverter does not exceed the working current value of the over-current protective device having temperature characteristics varying according to the ambient temperature. Thereby, a start torque can be increased by increasing the output voltage of the inverter without operating the over-current protective device when the compressor is stated at a low temperature when a start load is increased.

Abstract: A fan control system and method that maintains the operating temperature of computer and electronic devices or components at about a predetermined control level to minimize power consumption and audible noise. The fan control system is a programmable closed loop system including a temperature sensor, first and second fan controllers, and a fan/motor assembly including a power converter, a motor, and a fan. The first fan controller provides programmable acceleration/deceleration of the fan during an initial fan spin up, and the second fan controller runs the fan only as fast as necessary to keep the sensed temperature level of a computer device as close as possible to the predetermined control level, thereby minimizing the power consumption of the system and the audible noise of the fan.

Abstract: A system for injecting an injection fluid into a pipeline includes an injection pump, a timer for initiating sequencing of the pump, a control valve for controlling the flow of pressurized fluid to power the injection pump, a controller for controlling operation of the control valve, and an electric motor responsive to the controller for rotating a cam on the motor shaft to open and close the control valve. The injected fluid may be methanol, so that the system automatically injects methanol into a pipeline which transmits natural gas. In one embodiment, the system includes a temperature sensor and a flow sensor for inputting signals to the controller.

Abstract: The present invention provides a system which comprises primary supply pumps and secondary supply pumps and controls pressurized water supply systems, air-conditioning systems, or the like that supply chilled water or hot water using these pumps. In the present invention, calculation is carried out based on measurement signals obtained by measuring pressure, flow rate, open rate of valves, etc. by providing sensors in supply channels.

Abstract: A sump draining apparatus having a pressure transducer engaged in a receptacle that is in turn engaged in an open-ended collar of a housing. The receptacle and thus the pressure transducer is slideable in the axial direction into and out of the open-ended collar. The housing is generally cylindrical and contains a pump and motor, each of which has a generally cylindrical shape and is axially stacked in the housing. A cord having a vent and electrical leads for the pressure transducer is releasably engaged via a cord restraint at one end portion of the housing and the pressure transducer is releasably engaged in the receptacle in the open-ended collar at the other end of the housing. The receptacle and sensor may be removed, serviced, and/or replaced without the housing being opened and without the pump and motor being removed.

Abstract: The present invention provides a hybrid material and a method for forming a hybrid material comprising actuator made from a stimuli responsive polymer mounted in a porous framework. The present invention also provides devices employing the actuator of the present invention.

Abstract: The inventive fan includes a frame having a hub defining an aperture and a fan unit received in the frame. The fan unit has an air impeller rotatably supported by the hub and a circuitry adapted to adjust the rotational speed of the air impeller. The heat sensor extends from the fan unit to the heat sink through the aperture of the hub, and sends a signal indicative of the precise temperature of the heat sink to the circuitry for the adjustment of the rotational speed of the air impeller. As a result, the rotational speed of the air impeller can be changed upon the precise temperature of the heat sink detected by the heat sensor.

Abstract: In a device and a method for controlling an oiled air compressor (1), which is included in a compressed-air system (2) for a motor vehicle and which is driven by the engine (3) of the motor vehicle and supplies compressed air to at least one consumer (12) in the compressed-air system (2), provision is made of, on the one hand, a control unit (14) for controlling the function of the air compressor (1) by activating the air compressor at a lower predetermined pressure level (P1) for charging the compressed-air system and deactivating the same at a higher predetermined pressure level (P2) for relieving the air compressor, and, on the other, a drainage unit (17), which in connection with the activation of the air compressor (1) drains pollutants, which have accumulated in the air compressor during the deactivation, before the air compressor is allowed to start charging the compressed-air system (2).

Abstract: Processing systems and methods comprise a separation device that, in use, performs a separation process including separation of red blood cells from blood or a suspension containing red blood cells. The systems and methods include an outlet line coupled to the separation device to remove red blood cells from the separation device, at least in part, while the separation process occurs. A sensor associated with the outlet line senses hematocrit of red blood cells removed from the separation device and generates a sensed hematocrit output. A controller is coupled to the separation device to control removal of red blood cells from the separation device based, at least in part, upon the sensed hematocrit output.

Abstract: A system is provided for controlling the operation and performance of water-only cyclones used in a coal preparation plants for separating a fine raw coal slurry into fine coal and fine refuse slurries. The inventive system includes a variable speed pump feeding the fine raw coal slurry from an underpan of a deslime screen to a water-only cyclone. A nuclear density gauge measures the specific gravity of the raw coal slurry feeding the water-only cyclones and generates a signal representative of the measured specific gravity value, which is then used to control the addition of water to maintain a set point specific gravity. A level sensor measures the level of the fine raw coal slurry in the underpan and generates a signal representative of the measured level value. A pressure sensor measures the pressure of the fine raw coal slurry pumped to the water-only cyclone and generates a signal representative of the measured pressure value.

Abstract: A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending from a front side of the motor with a bladed propeller secured to the output shaft. The motor includes a housing with a mounting area for securing an electrical control switch. The mounting area is provided by a flange portion of the rear motor wall and positioned radially outwardly relative to the output shaft, and provides mounting of the control switch with a user interface that is exposed from the fan frame. The fan assembly motor also may provide an electrical connection port for removable attachment of an electrical power cord, wherein the connection port is integral with the motor housing and is exposed from the fan frame for attachment of the cord by a user.

Abstract: A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending from a front side of the motor with a bladed propeller secured to the output shaft. The motor includes a housing with a mounting area for securing an electrical control switch. The mounting area is provided by a flange portion of the rear motor wall and positioned radially outwardly relative to the output shaft, and provides mounting of the control switch with a user interface that is exposed from the fan frame. The fan assembly motor also may provide an electrical connection port for removable attachment of an electrical power cord, wherein the connection port is integral with the motor housing and is exposed from the fan frame for attachment of the cord by a user.

Abstract: An operation portion reads an analyzing time and an analyzing flow rate from a storing portion for a next analysis to calculate a liquid delivery quantity per analysis for the next analysis, and transmits the liquid delivery quantity per analysis to a comparison portion. The comparison portion compares a pump capacity and the liquid delivery quantity per analysis, and when the comparison portion determines that the pump capacity is larger than the liquid delivery quantity per analysis, a control portion allows a mobile phase in the next analysis to be delivered by only one cycle discharging operation in a low flow rate mode. Thus, in a micro-liquid chromatography, influence of a pulsating flow can be suppressed.

Abstract: Disclosure is made of a housing and electric connection panel for sump pump and full septic tank alarm apparatus which includes an electric connection panel with a female receptacle and electrical terminal strip mounted on the panel and power lines leading onto the panel, and this electric connection panel mounted in grooves in a panel housing, and this panel housing attached to a sump tank by a connector pipe nipple extending through the side wall of the panel housing and through the side wall of the septic tank and electric wire leads to from the sump pump float switch, sump pump, and full tank alarm each of which is in the sump tank and the electric leads extending through the connector pipe nipple and into the panel housing and the piggy back male plug of the sump pump switch plugged into the female receptacle on the electrical panel and the male plug of the sump pump plugged into the piggy back of the sump pump switch, and the electric power supply to the electrical connector panel entering through the b

Abstract: Ceiling fan operation control for turning the fan on and off based on a passive infrared sensor, combined with a temperature sensor to regulate, the speed of the fan. The passive infrared sensor, the temperature sensor and controls for both are in a housing directly mounted to the fan motor of the ceiling fan. Me controls can be set screws covered by a removable cap. The passive if sensor can include a fresnal lens for sensing a 360 degree circumference beneath the fan, and a photo-optical sensor such as a photocell, which suspends ceiling fan control changes for allowing the fan to continue operation when the room is dark and occupants may be sleeping.

Abstract: An improved continuous capacity modulation system for scroll-type compressors is disclosed in which a valve body of a solenoid valve assembly is secured to the inner wall of the hermetic shell and the actuating coil is mounted on the outer surface thereof. The actuating coil includes a plunger/valve member which cooperates with passages provided in the valve body to selectively actuate the capacity modulation arrangement utilizing compressed fluid. The construction offers the advantage that all fluid pressure lines are located within the hermetic shell and thus protected from potential damage, the solenoid coil may be easily changed/replaced to accommodate different available operating voltages and/or malfunction thereof and the system can be easily tested prior to final welding of the outer shell. The actuating coil is controlled by Pulse Width Modulation to reduce the load demand of the compressor during times when load shedding is required.

Abstract: Apparatus for and method of monitoring the condition of an air compressor. The apparatus includes a plurality of appropriately located sensors for sensing operating parameters of the air compressor and for outputting signals indicative of the condition of each of the operating parameters. An information processor is connected to receive the output signals from the sensors and to communicate output control signals in response thereto. The control signals contain information that allows appropriate control and maintenance of the air compressor.

Abstract: A plumbing system which, when ambient outdoor temperatures drop below freezing, circulates water to prevent it from freezing, utilizing a check valve to prevent water from flowing back into the water main and further utilizing a relief valve which can open to the atmosphere and relieve pressure in the system if necessary. The system can have two separate circulation pumps, one for hot water and one for cold water.

Abstract: A fan suitable for use in a refrigerator includes a motor frame having a bracket insertion hole, a bracket including a cylindrical portion fitted into the bracket insertion hole so as to project from the motor frame and a bearing, a stator including a stator core, a stator coil wound on the stator core, and a molded layer molded from a synthetic resin so as to cover the stator core and the stator coil, the stator being disposed on an outer periphery of the cylindrical portion projecting from the bracket insertion hole so as to be supported by the cylindrical portion and the motor frame, a rotor including a rotational shaft inserted into the cylindrical portion so as to be rotatably mounted via the bearing on the bracket and having both ends, a rotor yoke disposed on one end of the shaft opposite to the motor frame so as to cover the stator, and a rotor magnet disposed on an inner circumferential face of the rotor yoke so as to be opposed to an outer circumferential face of the stator core with a gap between t

Abstract: An improved electrical submersible pump is disclosed in which a processor downhole is utilized to monitor one or more subsurface conditions, to record data, and to alter at least one operating condition of the electrical submersible pump. Novel uses are described for downhole gas compression, the delivery of particulate matter to wellbore sites, and for the disposal of waste.

Abstract: A system and a method are provided for velocity modulation to create pulseless delivery of a fluid by a pump, particularly a piston pump. The system and method require input of data, such as a user-entered dispense rate or analog current or voltage input proportional to a desired output rate. A timer or counter is pre-loaded from a lookup table stored in a processor. The time or counter is started and, upon detection of an overflow condition, the motor and table pointer are incremented one step. As a result, pulseless operation of a pump is achieved.

Abstract: An electrical circuit for controlling the operation of a fan cooled aftercooler receiving pressurized air from a compressor located in a locomotive. The circuit includes a motor for driving the fan of the aftercooler, an electrical relay comprising a coil and contacts operated by the coil, and a temperature sensitive switch connected in electrical series with the coil. The contacts of the relay are connected in electrical series with the motor. The temperature sensitive switch is effective to open the circuit of the coil and thereby open the contacts to stop operation of the fan when ambient temperature falls to or below freezing.

Abstract: A summer operation apparatus for a circulating water heating system includes a separate auxiliary device installable in connection with the system controller. The auxiliary device includes an external temperature sensor for sensing the outside temperature and also a first switching device for controlling the system pump. A second switching device converts the signal of a signal line of the temperature sensor of a controller so that it can shut the system valve. The auxiliary device also includes a control for controlling the first and second switching devices according to the external temperature thereby implementing a summer operation state for pump and valve. A timer device can be included for starting the pump intermittently in the summer operation state for short periods at a time.

Abstract: A contactless output section makes a circuit including a fan motor and an ac power source when a receive portion receives a command signal. A diode bridge and a direct current regulated circuit smooth and regulate dc current. An operation part is provided with power from the direct current regulated circuit, compares a measured temperature with a set temperature, and generates and provides a command signal for the receive portion of the contactless output section.

Abstract: An infusion apparatus includes a pump powered by a source of battery power and capable of operating in a plurality of infusion modes and operating in a power savings mode. The infusion apparatus further includes sensors which sense various conditions of the pump. A controller is programmed to periodically operate in a power-savings mode of operation and also selectively causes each sensor to be connected to the battery power only when the sensor is to detect a condition, thus further conserving battery power.

Abstract: A compressor start-up controller includes a compressing section (37-39) for compressing a refrigerant; a motor (25) connected to the compressing section for rotating the compressing section; a drive circuit (10) connected to the motor for driving the motor; a rotation detecting device (1) connected to the drive circuit for detecting whether the motor is normally rotating; a control unit (8) connected to the drive circuit for operating the motor in a step mode at a very slow rotation at its start-up for effecting electricity conducting control to gradually increase or decrease commutating current at a very slow speed during the step mode operation at the motor start-up.

Abstract: A fan speed controller and a method which allows to maintain a constant level of thermal sensation felt by a human body when air temperature, relative humidity, thermal radiation and distance between the fan and the human body are changing. Desired thermal comfort index can be preset and fan speed is varied in response to air temperature, relative humidity, thermal radiation and distance between the fan and the human body to provide a constant level of thermal sensation.

Abstract: A sheet media handling apparatus includes an air plenum having a first set of openings for passing air in the vicinity of a sheet media being handled and a second opening; and a fan including a flat brushless DC motor mounted adjacent the second opening and a centrifugal impeller attached to the motor and positioned so as to move air through the second opening when rotated by the motor. A pressure sensor connected to the motor drive circuit controls the speed of the motor in an inverse relationship to atmospheric pressure so that sufficient air pressure is provided for the sheet handling apparatus while minimizing the noise generated by the apparatus.

Abstract: A method for controlling a hydraulic pump included by an apparatus, comprises the steps of: measuring a circumferential atmospheric temperature of the apparatus, comparing the measured circumferential atmospheric temperature with a first temperature to judge as to whether the measured circumferential atmospheric temperature is higher than the first temperature or not, and decreasing an output of the hydraulic pump when the measured circumferential atmospheric temperature is judged to be higher than the first temperature.