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Operatively correlated with automatic control

Subclass of:

062 - Refrigeration

062125000 - WITH INDICATOR OR TESTER

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Class / Patent application numberDescriptionNumber of patent applications / Date published
062126000 Operatively correlated with automatic control 88
20130025308APPARATUS AND METHOD FOR DEFROSTING COMPONENTS IN A TRANSPORT REFRIGERATION UNIT - A transportation refrigeration unit, which is configured to defrost the evaporator coil of an evaporator, is provided with improvements to a power transfer mechanism. The power transfer mechanism incorporates a coupling mechanism that can transfer power from the condenser fan to the evaporator fan. In one embodiment, the coupling mechanism is encapsulated in a housing, which forms an interior cavity for receiving a lubricating fluid therein. The interior cavity is such that the coupling mechanism is immersed in the lubricating fluid.01-31-2013
20130025307REFRIGERATION SYSTEM - A refrigeration system includes a refrigerant circuit including a compressor and an expander which expands a refrigerant and generates power, for performing a refrigeration cycle. The refrigeration system includes a compressor control section and an expander control section which, when an operation stop signal is output during operation, reduces a rotational speed of the compressor and increases a rotational speed of the expander to increase the ratio of the rotational speed of the expander to the rotational speed of the compressor.01-31-2013
20090193824Ice-Making Machine - An ice maker comprises a tray, which has at least one automatically emptiable compartment for moulding a piece of ice, a storage chamber (08-06-2009
20090077983SYSTEM AND METHOD FOR MONITORING A COMPRESSOR OF A REFRIGERATION SYSTEM - A system includes a compressor temperature sensor that generates a compressor discharge temperature signal corresponding to a compressor of a refrigeration system, a compressor pressure sensor that generates a compressor discharge pressure signal corresponding to the compressor, and a controller processing the signals over a predetermined time period. The processing includes calculating a discharge saturation temperature based on the compressor discharge pressure signal, calculating compressor superheat data based on the compressor discharge temperature signal and the discharge saturation temperature, accumulating the compressor superheat data over the predetermined time period, and comparing the accumulated compressor superheat data to a predetermined threshold. The controller generates an alarm indicating a compressor fault based on the comparing.03-26-2009
20090165476Cooling storage cabinet - One aspect of the present invention includes a cooling storage cabinet having a compressor that is included in a freezing device, a heater that is connected in parallel with the compressor to a power source, a switch that controls supply of current to the compressor, and a control unit that stops supply of current to the heater during a predetermined time after the switch operates start-up of the compressor.07-02-2009
20130036754METHOD, APPARATUS, AND SYSTEM FOR AIR-CONDITIONING WITH DEHUMIDIFICATION - Embodiments comprise methods and arrangements for cooling and dehumidifying outgoing air. Embodiments may comprise a temperature sensor to couple with an air conditioning controller to cycle a fan for conditioned air to increase dehumidification of the conditioned air. Some embodiments comprise a temperature sensor coupled with the low pressure side return line and the fan to turn the fan on and off. In some embodiments, the temperature sensor may comprise logic to control a duty cycle of the fan. Some embodiments comprise a very low cost substitute for a continuously variable speed fan in the condenser unit to turn on the evaporator unit blower as needed and turn the blower off, e.g., roughly for half of every one minute, or turn the blower to low speed if the fan motor has a low speed wiring. Such arrangements may be installed as original equipment or as a retrofit.02-14-2013
20100107663Automatic control system for combustion unit of refrigerator - An automatic control system for a combustion gas refrigerator comprising a control module, a temperature sensing device and a thermoelectric couple, the thermoelectric couple is connected with the temperature sensing device and the thermoelectric couple, if the temperature inside the gas refrigerator does not reach a set temperature value, the combustion gas from a combustion unit is automatically ignited to generate heat to drive a cooling unit of the gas refrigerator that can thus keep its low temperature, and the combustion gas can be blocked automatically when in accident flame extinguishing of the combustion unit and in inability of keeping on igniting. One needs not to observe the burning state of the combustion unit when the refrigerator is in use; the present invention can automatically control the combustion unit without a manual adjustment, it is convenient and highly safe for use.05-06-2010
20090139250Defrost indicator - A defrost indicator is configured such that the process of freezing and defrosting the defrost indicator places the defrost indicator into a state that is not completely reversed by refreezing, so that one can detect whether the defrost indicator defrosted and refroze or never defrosted by observing its current state. In an embodiment, the defrost indicator is initially placed in a first state before being frozen (e.g., upside down with fluid in an upper chamber). Freezing the defrost indicator places it in a second state (e.g., with the fluid frozen in the upper chamber). Then when the defrost indicator is defrosted, the defrost indicator is placed into a third state that is different than the first state (e.g., right-side-up with liquid fluid in the lower chamber). If the defrost indicator is again frozen, the defrost indicator is placed into a fourth state (e.g., the fluid frozen in the lower chamber).06-04-2009
20120180506REFRIGERATION AND AIR-CONDITIONING APPARATUS - When an operating state indicated by a set of operation data measured during normal operation becomes a state satisfying an operation data obtaining condition, the set of operation data at the time is obtained as a set of operation data for initial learning, and an inner volume of a refrigerant extension piping is calculated based on the obtained set of operation data for initial learning. A total amount of refrigerant in a refrigerant circuit 07-19-2012
20090113905FLOW CONTROL OF REFRIGERANT - The present invention concerns a cooling or heating apparatus including at least a 05-07-2009
20120216555MEDIATING APPARATUS AND AIR CONDITIONING SYSTEM - An air conditioner selectively executes a first control which carries out an air conditioning by driving a compressor by a frequency which is controlled based on a set value and a space temperature, and a second control which carries out an air conditioning with a predetermined air conditioning capacity. The operating apparatus switches an activeness and an inactiveness of a signal based on a scale relationship between the space temperature and the set temperature. An instructing part instructs the air conditioner to start the second control with an input to a inputting part as a trigger, and instructs the air conditioner to finish the second control with a switch of the signal as a trigger. An estimated value of the set temperature is calculated based on the space temperature with the switch of the signal as a trigger, and is transmitted as the set value to the air conditioner.08-30-2012
20120216554INTELLIGENT ENERGY-SAVING AIR CONDITIONER - An intelligent energy-saving air conditioner includes a control device (08-30-2012
20090094997SYSTEM AND METHOD FOR CALIBRATING PARAMETERS FOR A REFRIGERATION SYSTEM WITH A VARIABLE SPEED COMPRESSOR - A system and method for calibrating parameters for a refrigeration system having a variable speed compressor is provided. A compressor is connected to a condenser and an evaporator. A condenser sensor outputs a condenser signal corresponding to at least one of a sensed condenser pressure and a sensed condenser temperature. An inverter drive modulates a frequency of electric power delivered to the compressor to modulate a speed of the compressor. A control module is connected to the inverter drive and determines a measured condenser temperature based on the condenser signal, monitors electric power data and compressor speed data from the inverter drive, calculates a derived condenser temperature based on the electric power data, the compressor speed data, and compressor map data for the compressor, compares the measured condenser temperature with the derived condenser temperature, and updates the compressor map data based on the comparison.04-16-2009
20130067942AIR CONDITIONING APPARATUS - An air-conditioning apparatus detects refrigerant leak with high-accuracy even in a state in which an excessive liquid refrigerant is stored in an accumulator. The air-conditioning apparatus determines that leakage of refrigerant has occurred from a refrigerant circuit in an operating state in which an excessive liquid refrigerant is stored in an accumulator, after a part of the excessive liquid refrigerant stored in the accumulator is moved and stored into a condenser, with the excessive liquid refrigerant remaining in the accumulator as a reference amount, when the excessive liquid refrigerant is less than the reference amount.03-21-2013
20130067941AIR CONDITIONER - An air conditioner having an indoor unit and an outdoor unit, at least one of which includes a communication unit, a switching unit turned on when communication lines are connected to the communication unit, turned off in a standby mode, and turned on when the standby mode is released, a voltage distribution unit distributing voltage applied to the communication unit when the switching unit is turned off, a voltage adjustment unit adjusting the voltage applied to the communication unit and transmitting the adjusted voltage to the communication unit, and a control unit turning the switching unit on when driving voltage is input to the control unit, turning the switching unit off when the at least one of the indoor unit and the outdoor unit enters the standby mode, and turning the switching unit on based on the voltage distributed by the voltage distribution unit in the standby mode.03-21-2013
20120222438Air-Conditioning System for a Vehicle - An air-conditioning system for a vehicle for performing cooling/air-heating of a temperature controlling object includes: a temperature detection unit 09-06-2012
20130061620SEQUENTIAL DUAL EVAPORATOR REFRIGERATOR AND METHOD OF CONTROLLING SAME - A refrigerator and method are provided where the refrigerator includes at least a refrigerator compartment (C03-14-2013
20110308262REFRIGERANT CIRCULATION APPARATUS - A refrigerant circulation apparatus includes: an evaporator which evaporates a refrigerant; a blowing device which blows air to the evaporator; a condenser configured to condense the refrigerant evaporated by the evaporator; a blower failure detecting device which detects failure of the blowing device; a heat medium flow rate control valve which controls a flow rate of a heat medium supplied to the condenser, the heat medium for cooling the refrigerant; a condenser refrigerant liquid temperature sensor which detects a temperature of the refrigerant which is supplied to the evaporator from the condenser; and condenser side refrigerant temperature control device which lowers a setting temperature of a condenser side externally inputted temperature and controls the heat medium flow rate control valve so that a measured value of the condenser refrigerant liquid temperature sensor becomes equal to the lowered setting temperature, when receiving a failure signal from the blower failure detecting device.12-22-2011
20120174606BUILDING HEAT LOAD REDUCTION METHOD AND APPARATUS - A building heat load reduction system is provided having a series of spray nozzles located on a building roof that are connected to a cooling liquid supply. A temperature sensor on the roof is connected to a controller and, depending upon the heat on the roof, supplies liquid coolant to the spray nozzles which sprays the liquid coolant onto the roof. A moisture sensor on the roof or in the roof drain provides a signal to the controller so that once the top of the roof is wet, the sprinkler is shut down so that excess water is not wasted. A liquid coolant/surfactant mixing system is provided which mixes a surfactant with the cooling liquid to provide enhanced cooling. The surfactant causes the liquid coolant being sprayed to have a smaller droplet size which creates a relatively higher specific surface area for the water droplets.07-12-2012
20120285186HEAT PUMP SYSTEM - A heat pump system includes a heat source unit, a usage-side unit, and a usage-side controller. The heat source unit has a heat source-side compressor for compressing a heat source-side refrigerant, and a heat source-side heat exchanger capable of functioning as an evaporator of the heat source-side refrigerant. The usage-side unit is connected to the heat source unit and has a capacity-variable-type usage-side compressor for compressing a usage-side refrigerant, a usage-side heat exchanger capable of functioning as a radiator of the heat source-side refrigerant and functioning as an evaporator of the usage-side refrigerant, and a refrigerant-water heat exchanger capable of functioning as a radiator of the usage-side refrigerant and heating an aqueous medium. The usage-side controller performs usage-side capacity variation control for incrementally varying the operating capacity of the usage-side compressor during a usual operation.11-15-2012
20120186287AIR CONDITIONER - An air conditioner (AC) includes an AC body and a remote controller (RC), wherein the AC body includes a body receiver that receives a control signal for controlling the operation from the RC, a body transmitter that transmits operation information for the AC body to the RC, and a maintenance-operation information generator that generates contents of the maintenance operation and its operation time as the operation information, and the RC includes a RC transmitter that transmits a control signal for controlling the operation to the AC body, a RC receiver that receives operation information for the AC body transmitted from the AC body, and a display unit that displays the contents of maintenance operation and the operation time included in the operation information received by the RC receiver.07-26-2012
20110271697VEHICLE AIR-CONDITIONING SYSTEM - A vehicle air-conditioning system includes a solar radiation amount detection element configured to detect the amount of solar radiation incident on an instrument panel, a temperature correction element configured to correct a detection signal value output from the solar radiation amount detection element according to a temperature on the instrument panel, a solar radiation sensor configured to output a detection signal in which a temperature is corrected by the temperature correction element, and an air conditioner configured to control air conditioning inside a vehicle based on the detection signal from the solar radiation sensor.11-10-2011
20110283723REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus (11-24-2011
20100101250COMPRESSOR DIAGNOSTIC SYSTEM - A system is provided and may include logic circuitry in communication with an intelligent device. The logic circuitry may process a refrigeration system operating parameter as a function of time and at least one of the logic circuitry and the intelligent device may diagnose a refrigeration system status based on the processing. The intelligent device may output the diagnosis.04-29-2010
20120096881AIR-CONDITIONING APPARATUS - The air-conditioning apparatus includes a coolant circuit configured by sequentially connecting a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger; a motor that operates a compressor mechanism disposed inside the compressor; an inverter for driving the motor; and a control unit that controls the inverter. The control unit includes a liquefaction detecting unit that detects coolant liquefaction in the compressor; includes a first PWM signal generating unit that generates an inverter control signal for driving the motor; includes a second PWM signal generating unit that generates an inverter control signal for making the motor perform a preheating operation; and includes a switching unit that performs switching in such a way that the first PWM signal generating unit or the second PWM signal generating unit outputs the corresponding inverter control signal to the inverter.04-26-2012
20120096880TEMPERATURE REGULATION SYSTEM WITH ACTIVE JETTING TYPE REFRIGERANT SUPPLY AND REGULATION - This invention is characterized by an air conditioning system that jets actively a refrigerant into an evaporator in an active jetting manner so as to enhance the diffusibility and uniformity thereof.04-26-2012
20120291464AIR CONDITIONER - Disclosed is an air conditioner in which a plurality of compressors retains a constant oil level. The air conditioner includes a plurality of compressors configured to compress a refrigerant, a plurality of oil separators connected respectively to the plurality of compressors and serving to separate oil contained in the refrigerant compressed in and discharged from the compressors, a plurality of oil return pipes configured to allow the oil separated in the plurality of oil separators to be returned into the plurality of compressors, a plurality of oil return valves installed respectively to the plurality of oil return pipes to open or close the plurality of oil return pipes respectively, and a resistor configured to connect the plurality of oil return pipes to each other.11-22-2012
20120023985PRECONDITIONED AIR UNIT WITH VARIABLE FREQUENCY DRIVING - A preconditioned air unit for supplying preconditioned air to an aircraft parked on the ground, the preconditioned air unit comprising a housing accommodating a flow duct with an air inlet for ambient air and an air outlet for connection to the parked aircraft, a blower connected with the flow duct for generation of an air flow from the air inlet toward the air outlet, at least one refrigeration system, each of which includes at least one compressor, at least one condenser, at least one expansion valve, and at least one evaporator connected in a flow circuit containing a refrigerant, and wherein the at least one evaporator interacts with the air flow in the flow duct, and at least one variable frequency driver for power supply of at least one of the at least one compressor of the at least one refrigeration system.02-02-2012
20120023984AIR CONDITIONER - In a compressor shell built in an outdoor unit of an air conditioner, a compressor shell thermistor that detects a temperature of the shell is installed. Also, an outside air temperature thermistor that detects an outside air temperature is installed in an outdoor unit. The outside air temperature is compared with the compressor shell temperature, and if the shell temperature is higher than the outside air temperature, a compressor heating device is invalidated. If the shell temperature is lower than the outside air temperature, it is determined as a refrigerant collection condition, and the compressor heating device is operated. Also, if the shell temperature is higher than the outside air temperature by a certain temperature or more, the operation of the compressor heating device is stopped so that wasteful standby power is reduced, and energy of the apparatus is saved.02-02-2012
20090090115Control system interface with display for air conditioning apparatus - A user interface for a control system for an air conditioning apparatus includes a visual display and keys for scrolling menu items and entering commands to the control system. The interface is mounted in the apparatus cabinet and on a rotatable bracket to orient the interface for ease of reading the display and actuating the respective keys.04-09-2009
20080209925PROTECTION AND DIAGNOSTIC MODULE FOR A REFRIGERATION SYSTEM - A system includes a compressor and a compressor motor functioning in a refrigeration circuit. A sensor produces a signal indicative of one of current and power drawn by the motor and a liquid-line temperature sensor provides a signal indicative of a temperature of liquid circulating within the refrigeration circuit. Processing circuitry processes the current or power signal to determine a condenser temperature of the refrigeration circuit and a subcooling value of the refrigeration circuit from the condenser temperature and the liquid-line temperature signal.09-04-2008
20120291463Split System Dehumidifier - In certain embodiments, a system comprises an evaporator unit operable to receive an incoming airflow and a flow of refrigerant from an expansion device. The evaporator unit generates a cooled airflow by facilitating heat transfer from the incoming airflow to the flow of refrigerant. The cooled airflow has an absolute humidity less than an absolute humidity of the incoming airflow. The system further comprises a subcooler unit operable to receive the cooled airflow generated by the evaporator unit and the flow of refrigerant from a condenser unit located exterior to a structure. The subcooler unit generates an outgoing airflow by facilitating heat transfer from the flow of refrigerant to the cooled airflow, the outgoing airflow having a relative humidity less than a relative humidity of the cooled airflow. The system further comprises a supply fan operable to provide the outgoing airflow to the structure.11-22-2012
20120291465COOLING SYSTEM FOR ELECTRONIC EQUIPMENT - A cooling system for electronic equipment includes an evaporator cooling the electronic equipment, a blower making air heated by the electronic equipment flow into the evaporator, and a condenser condensing a refrigerant to be supplied to the evaporator and also includes a refrigerant liquid pipe guiding a liquefied refrigerant from the condenser to a lower part of the evaporator, a refrigerant gas pipe guiding the refrigerant which evaporates by cooling the electronic equipment from an upper part of the evaporator to the condenser, a refrigerant flow rate control valve controlling a flow rate of the refrigerant flowing into the evaporator, a temperature sensor detecting a temperature of air obtained after passing through the evaporator, and a controller for control valve controlling the control valve on the basis of a detection value of the temperature sensor.11-22-2012
20130213067HEAT SOURCE DEVICE - A heat source device is provided with a differential pressure sensor that measures the differential pressure between an inlet pressure and an outlet pressure for the chilled water in an evaporator and with a control device. The control device possesses the coefficient of loss for the evaporator and is provided with a chilled-water flow-rate computing portion that calculates a chilled-water flow rate at the evaporator on the basis of the coefficient of loss and the differential pressure output from the differential pressure sensor; a control-command computing portion that generates a control command by using a specification heating-medium flow rate that is set in advance; and a control-command correcting portion that corrects the control command generated by the control-command computing portion.08-22-2013
20090266092APPARATUS TO SENSE AND CONTROL COMPRESSOR OPERATION IN AN HVAC SYSTEM - An HVAC system and method for configuring a controller to control a compressor including a detection system provided to determine a type of compressor. The detection system includes a processor; and a load sensing circuit connected between the processor and a controller. The controller has a plurality of output connections connectable to a compressor. The load sensing circuit senses whether a load is present on each output connection of the plurality of output connections and provides a load signal to the processor indicating whether a load is present on each output connection. The load signals are processed with the processor to determine the type of compressor is present. The controller is configured to control the compressor in response to the determined type of compressor.10-29-2009
20090133416REFRIGERATION DEVICE CONTROL SYSTEM - A refrigeration device includes a control device and a multiple cooling elements. A supply header delivers refrigerant to the cooling elements and a return header returns refrigerant from the cooling elements. A single pressure sensor provides a signal representative of a pressure of the refrigerant in the return header to the control device, and a single temperature sensor provides a signal representative of a temperature of the refrigerant in the return header to the control device. The control device provides an output signal to control each of the cooling elements, in response to the signals from the single temperature sensor and the single pressure sensor.05-28-2009
20120067071GAS PROCESSING APPARATUS - Disclosed is a gas processing apparatus which can be operated independently of the feed flow rate of a process gas. The gas processing apparatus comprises a compressor (03-22-2012
20120060527REFRIGERATOR - A motor driving device for a refrigerator is disclosed. The refrigerator includes a condenser to condense refrigerant, a fan module mounted to one surface of the condenser so as to blow air; a first circuit unit including a microprocessor to output a speed command signal and a filter unit connected to an output terminal of the microprocessor so as to filter the output speed command signal; and a second circuit unit including an inverter controller to output an inverter switching control signal on the basis of the filtered speed command signal and an inverter to convert an input DC power into a predetermined-frequency AC power by performing a switching operation in response to the inverter switching control signal and to output the AC power to a fan motor contained in the fan module. Thus, when the motor is driven, noise is greatly reduced.03-15-2012
20090255280REFRIGERATOR AND ICE MAKER THEREOF - An ice detecting apparatus for an ice maker provided in a refrigerator includes an ice maker, and an ice detecting sensor attached to the ice maker and detecting an amount of ice collected in an ice container. The ice detecting sensor includes at least one optical transmitter or emitter provided on one side of the ice maker and at least one receiver at another side of the ice maker. The optical transmitter and receiver are separated by a prescribed distance and, at least one heater is provided to generate heat to be transferred to at least one of the optical transmitter or receiver.10-15-2009
20090255279REFRIGERATOR AND ICE MAKER THEREOF - An ice detecting apparatus of an ice maker disposed to make ice in a refrigerator includes an ice maker and an ice detecting sensor to detect an ice-full state of ice discharged from the ice maker. The ice detecting sensor may be disposed at the ice maker. The ice detecting sensor may also be heated by a heater.10-15-2009
20120031126CONTROL SYSTEM FOR AN ICE MAKER - A system for ice making includes a controller, a compressor, a condenser, an evaporator, a water sump, a curtain disposed adjacent to the evaporator, a water distributor in communication with the water sump to draw water from the water sump and distribute the water over the evaporator during an ice making cycle, a water level sensor disposed in the water sump. The water sensor detects a high water level and signals the controller to initiate an ice making cycle, the sensor further detects a low water level in the sump and signals the controller to terminate the ice making cycle and initiates a harvest cycle. The system further includes a curtain sensor disposed about the curtain that detects when a harvest cycle has ended and sends a signal to a controller to fill the sump with water.02-09-2012
20110030401REFRIGERATOR HAVING WIRING ARRANGEMENT USING INTEGRATED WIRING MODULES - Disclosed are an integrated wiring module for a refrigerator which is capable of simplifying the wiring of a refrigerator by integrating the various power lines and signal lines conventionally necessary to control a refrigerator into only one line, and a refrigerator having a simplified wiring structure adopting the same. The refrigerator includes integrated wiring modules provided at a refrigerator door connected to a main body board and to each actuator means, wherein the integrated wiring modules are connected to each other only through AC power lines so as to control the door and the respective actuator means, thereby being capable of achieving a door-side zero clearance and sliminess by simplifying the wiring within the refrigerator, reducing an error rate or failure rate which may arise due to the wiring, enhancing the insulating effect by reducing the number of wirings passing through insulation, and reducing the size of a main body board of the refrigerator to thereby increase the capacity of the inner space as by much as the reduced size.02-10-2011
20120266620Monitoring and Control System for a Heat Pump - Disclosed is a monitoring and control system for an air source heat pump apparatus having a controller to control at least one operation of the heat pump apparatus, a temperature sensor to detect the temperature in a specified area at, near, and/or around the controller, and an operable component, the system including a control program to: determine the temperature based on the detected temperature of the temperature sensor; determine whether a first condition exists, the first condition including a determination that the controller is powered, but the operable component is not operating; determine whether a second condition exists, the second condition including a determination that the controller is powered, and the operable component is operating; and based at least partially on determinations (a)-(c), determine the ambient temperature at or around the heat pump apparatus.10-25-2012
20120240607AIR CONDITIONER FOR VEHICLE - A vehicle air conditioner includes a cooling heat exchanger arranged in a casing, a compressor control portion which controls a compressor such that a cooling temperature at the cooling heat exchanger approaches a target cooling temperature, and a dryness determination portion which determines whether an outer surface of the cooing heat exchanger is dry or not based on a humidity in the casing. A target temperature determination portion determines the target cooling temperature to be any one of target temperatures including a first target temperature that is lower than a dew-point temperature in the casing, when the dryness determination portion determines that the cooling heat exchanger is not dry. The target temperature determination portion determines the target cooling temperature to be any one of the target temperatures other than the first target temperature, when the dryness determination portion determines that the cooling heat exchanger is dry.09-27-2012
20090007575Cooling apparatus - A cooling apparatus such as a refrigerator includes a refrigeration cycle including a compressor driven by an electric motor, a condenser, a throttle valve and an evaporator, a first physical amount detector capable of detecting a physical quantity representing a temperature of an object to be cooled by the cooling operation of the evaporator, a temperature control device capable of controlling a rotating speed of the motor based on the physical quantity detected by the first physical quantity detector so that the object is cooled approximately to a target temperature, a second physical quantity detector capable of detecting a physical quantity corresponding to a performance margin of the refrigeration cycle, and a rotating speed limiter capable of limiting the rotating speed of the motor to or below a predetermined speed based on a physical quantity detected by the second physical quantity detector.01-08-2009
20120198872AIR-CONDITIONING APPARATUS - To provide an air-conditioning apparatus capable of achieving energy saving. An air-conditioning apparatus includes at least a use side heat medium flow control device and a first heat medium flow switching device disposed in an outlet side of the heat medium passage of a use side heat exchanger, and a heat medium backflow prevention device disposed in an inlet side of the heat medium passage of a use side heat exchanger.08-09-2012
20120198869CONTROL DEVICE FOR VEHICLE - An engine and an electronic control unit perform cooling capacity increase control for compensating for a insufficiency of the cooling capacity of a cooling device. The electronic control unit performs a variety of control for a vehicle, including control of the cooling device. At that time, the electronic control unit calculates the target value of the cooling capacity of the cooling device, calculates the estimate value of the cooling capacity that will be able to be exerted in the future under the current control, compares the target value and the estimate value, and when it is determined from the result of the comparison that the cooling capacity will be insufficient, performs the cooling capacity increase control. The electronic control unit changes the contents of the cooling capacity increase control according to the degree of insufficiency of the estimate value with respect to the target value.08-09-2012
20120198871REFRIGERATED CHEST FOR RAPIDLY QUENCHING BEVERAGES, AND VISUALLY IDENTIFYING WHEN SUCH BEVERAGES REACH TARGET TEMPERATURE - The cooling chest for rapidly quenching beverages includes a quench tray for holding containers of beverage. The quench tray is lowered into salt-water or other cooling liquid which is cooled by a refrigeration unit. A processing device determines the temperature of the beverages within the containers within the quench tray and further activates a mechanism for removing the quench tray from the water or cooling liquid when the desired temperature is reached. The processing device can also activate the mechanism for removing the quench tray from the water or cooling liquid when the upper lid or access doors are opened.08-09-2012
20110162399Cooling Device - The present invention relates to a cooling device (07-07-2011
20120198870METHODS AND SYSTEMS FOR IMPROVING AND MAINTAINING THE CLEANLINESS OF ICE MACHINES - The use of the following techniques to clean air: (1) inlet air filtration, (2) continuous recirculation air filtration, (3) water filtration and disinfection, (4) use of an air curtain in the ice bin opening, and (5) provision of clean air to the air assist pump during the harvest cycle.08-09-2012
20120031125ENERGY-SAVING SYSTEM AND CONTAINER DATA CENTER INCLUDING THE SAME - An energy-saving system includes first and second infrared emitters, first and second infrared receivers, an air conditioner, and a controller. The infrared receivers send out detecting signals when the infrared receivers do not receive infrared signals of the infrared emitters. The controller controls the air conditioner to adjust temperature in a container data center according to the order of receiving the detecting signals of the first infrared receiver and the second infrared receiver.02-09-2012
20120204582APPARATUS FOR MANAGING OPERATION OF FREEZING MACHINE - An apparatus for managing operation of refrigerating machines controls defrosting of evaporators of refrigeration cycles. Each of the refrigeration cycles uses a compressor, a condenser, a decompressor, and the evaporator, and is formed for a corresponding one of cooling/heating devices installed in a single store. The apparatus obtains a total estimated power consumption in a case of a pull-down operation using power consumptions necessary for the pull-down operation performed for the cooling/heating devices after defrosting is performed and using a power consumption of the store that includes at least the power consumptions of the refrigeration cycles and that is estimated for each of predetermined time periods. The apparatus changes defrosting start times or defrosting end times of the cooling/heating devices so that the total estimated power consumption does not exceed an upper limit value of a power consumption set in advance by the store.08-16-2012
20100126194BACK LIGHT IN ICE STORAGE AREA - A refrigerator includes a refrigerator cabinet, at least one compartment disposed within the refrigerator cabinet, a door for providing access to one or more of the at least one compartment, an ice container at the door, an LED housing proximate the ice container, and at least one LED disposed within the LED housing for providing illumination of the ice container. In addition to providing lighting, the at least one LED may used to indicate status information associated with the refrigerator.05-27-2010
20120036875Storage container with sensor device and regrigerator having the same - A storage container with a sensor device and a refrigerator having the same. A pair of electrode terminals is exposed from the lower surface of a sensor plate installed on the inner surface of the bottom of the storage container, thereby improving reliability in measurement.02-16-2012
20110314848COMBINED AIR-CONDITIONING AND HOT-WATER SUPPLY SYSTEM - A configuration provided with a heat source unit, an indoor unit, a circuit for a hot-water supply heat source provided with a refrigerant—refrigerant heat exchanger and throttle means for the hot-water supply heat source, and a branch unit that distributes a refrigerant flowing through the indoor unit and the circuit for hot-water supply heat source and also provided with a refrigerating cycle for air conditioning in which the indoor unit and the circuit for hot-water supply heat source are connected in parallel and connected to the heat source unit by at least two connection pipelines via the branch unit and a refrigerating cycle for hot-water supply in which a compressor for hot-water supply, a heat-medium—refrigerant heat exchanger, throttle means for hot-water supply, and the refrigerant—refrigerant heat exchanger are connected in series, in which the refrigerating cycle for air conditioning and the refrigerating cycle for hot-water supply are connected so as to exchange heat between the refrigerant for air conditioning and the refrigerant for hot-water supply in the refrigerant—refrigerant heat exchanger.12-29-2011
20120060528GAS TREATMENT DEVICE - Disclosed is a gas treatment device that can efficiently regulate the temperature of a gas without being affected by load. Said device is provided with: a compressor (03-15-2012
20130219935AIR-CONDITIONING REMOTE CONTROLLER AND AIR-CONDITIONING SYSTEM - An air-conditioning remote controller includes a display section, an operable section, a memory, a transmitter unit, and a processor. The operable section includes a set-temperature increase button and a set-temperature decrease button. In the memory, information designating an upper limit, a lower limit, or both the upper limit and the lower limit as a setting target in setback control is set. The processor makes the display section display a set temperature or temperatures designated by the setting target set in the memory, changes the set temperature or temperatures designated by the setting target on the basis of an operation result of one of or both of the set-temperature increase button and the set-temperature decrease button, and transmits the changed result to the transmitter unit.08-29-2013
20130219936HEAT SOURCE APPARATUS - A heat source apparatus of a heat source system made up of a heat source machine side and a load facility side includes a heat source machine, and a heat source controller, wherein the heat source machine includes: a water heat exchanger that exchanges heat between heat source water and a refrigerant circulating through a refrigeration cycle; a primary pump that delivers heat source water to the water heat exchanger; and a heat source machine control device that operates based on information from the water heat exchanger and the primary pump, and wherein the heat source controller is connected to the heat source machine control device on a heat source side and to the load facility side so as to determine, after the primary pump is activated, whether or not the heat source water is normally fed by the primary pump based on a temperature difference between the heat source water before and after the water heat exchanger or a pressure difference .between the heat source water before and after the water heat exchanger, and so as to then operate the refrigeration cycle after water feed is confirmed through water feed determination.08-29-2013
20130219937AIR-CONDITIONING APPARATUS - When using at least one of heat exchangers related to heat medium that exchange heat between a heat source side refrigerant and a heat medium as an evaporator, in a case where an air-conditioning apparatus has detected, in the heat exchanger related to heat medium that functions as the evaporator, an evaporating temperature of the heat source side refrigerant which causes the temperature of the heat medium passing through this heat exchanger related to heat medium to become equal to or lower than a freezing temperature, the air-conditioning apparatus performs a heat medium anti-freezing operation by blocking entry of the heat source side refrigerant into the heat exchanger related to heat medium that functions as the evaporator, and causing the heat source side refrigerant to flow to a bypass pipe.08-29-2013
20120117992TEMPERATURE REGULATION SYSTEM WITH HYBRID REFRIGERANT SUPPLY AND REGULATION - The present invention provides a temperature regulation system with hybrid refrigerant supply and regulation in which a pressure-reducing regulator (R05-17-2012
20120125026Air Conditioning System for Vehicle - Provided is an air conditioning system for vehicles wherein a flow rate of refrigerant used for estimating a compressor torque can be accurately estimated by accurately detecting a difference between pressures at upstream and downstream sides of an orifice, which has a high correlation with the flow rate of refrigerant, and ultimately, the compressor torque can be accurately estimated, and this estimation can be performed while space saving and cost down can be achieved. The air conditioning system for vehicles having a refrigeration cycle provided with a refrigerant compressor, a condenser, a pressure reduction/expansion mechanism and an evaporator is characterized in that an orifice for throttling a refrigerant flow is disposed in a refrigerant path between the condenser and the pressure reduction/expansion mechanism, a pressure difference detection means capable of detecting a difference between pressures at upstream and downstream positions of the orifice is provided, and provided are a refrigerant flow rate estimation means for estimating a refrigerant flow rate with reference to the detected pressure difference and a compressor torque estimation means for estimating a compressor torque with reference to the estimated refrigerant flow rate.05-24-2012
20120125025Refrigeration Cycle - Provided is a refrigeration cycle wherein, when an orifice is disposed within a refrigeration circuit, and a differential pressure between the upstream side and the downstream side of the orifice is detected using two pressure sensors, the difference between the characteristics of the pressure sensors can be adequately and easily absorbed in software, to accurately determine an actual differential pressure, so that the flow rate of refrigerant and the torque of a compressor can be accurately estimated. The refrigeration cycle wherein the orifice is provided within a refrigerant circuit, and the pressure sensors are respectively provided on the upstream side and the downstream side of the orifice, is characterized in that, with regard to output characteristics representing the relationship between the detected pressure and the sensor output of each pressure sensor, the difference between the output characteristics of one pressure sensor and the output characteristics of the other pressure sensor is determined based on the outputs of both pressure sensors at a condition where the flow of refrigerant is stopped.05-24-2012
20120167605CONTAINER REFRIGERATION SYSTEM - A refrigeration apparatus controller calculates a refrigeration load of a refrigeration apparatus, and a load signal (S) containing load information indicating a magnitude of the refrigeration load is output from a communication device to an engine controller. The engine controller controls a speed of rotation of a generator engine based on the load signal (S).07-05-2012
20120210741NOISE CONTROL SYSTEM, AND FAN STRUCTURE AND OUTDOOR UNIT OF AIR-CONDITIONING-APPARATUS EACH EQUIPPED THEREWITH - To provide a noise control system capable of generating a noise cancellation field where noise is reduced at a desired position in a space. An error scanning filter generates a noise cancellation signal using an adaptive control algorithm based on error scanning, the signal having a phase opposite to that of an acoustic signal component detected by a reference sensor. A control speaker radiates the noise cancellation signal to create a noise cancellation field near the head of a person receiving sound.08-23-2012
20120167604REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus 07-05-2012
20120227428AIR-CONDITIONER FOR VEHICLE - An air-conditioner includes a heat pump cycle having an outdoor heat exchanger; a frost state calculator that calculates a degree of frost formed in the outdoor heat exchanger; an output portion that outputs an information of the frost; and a controller that instructs a defrosting operation for melting the frost by controlling the heat pump cycle. The controller controls the output portion to output the degree of frost when the defrosting operation is not performed, and controls the output portion to output a defrosting information representing that the defrosting operation is being performed when the defrosting operation is performed.09-13-2012
20120266619COOLING SYSTEM FOR USE IN AN APPLIANCE AND METHOD OF ASSEMBLING SAME - A cooling system for use in cooling an interior volume. The cooling system includes a first cooling assembly that is positioned within a housing that defines the interior volume. The first cooling assembly facilitates cooling the interior volume of the housing. A second cooling assembly is positioned external to the housing in flow communication with the first cooling assembly. The second cooling assembly is configured to channel a cooling fluid to the first cooling assembly. A control system is coupled to the first and second cooling assemblies. The control system is configured to channel cooling fluid from the second cooling assembly to the first cooling assembly when a temperature of air external to the housing is less than a temperature of air inside the housing, to facilitate reducing the air temperature inside the housing.10-25-2012
20110225998AIR-CONDITIONING APPARATUS - To obtain an air-conditioning apparatus that does not make a refrigerant circulate up to an indoor unit and further can achieve energy-saving. A refrigeration cycle is configured by connecting a compressor that pressurizes a refrigerant, a four-way valve that switches a circulation path of the refrigerant, a heat source side heat exchanger that performs heat exchange, expansion valves for pressure-adjusting the refrigerant, and a plurality of intermediate heat exchangers that performs heat exchange between the refrigerant and the heat medium to heat and cool the heat medium, with piping. A heat medium circuit is configured by connecting intermediate heat exchangers, pumps that pressurize the heat medium, and a plurality of use side heat exchangers that perform heat exchange between the heat medium and the air in the indoor space, with piping.09-22-2011
20120318010AIR-CONDITIONING APPARATUS AND SUPPORT SYSTEM OF THE SAME - When a user thinks “Is it a malfunction?” and wants to relieve this doubt and worry, the user first pushes a menu button 12-20-2012
20130227977AIR-CONDITIONING APPARATUS - An air-conditioning apparatus directly detects leakage of a plurality of types of refrigerant by computing refrigerant concentrations, and ensure safety. On the basis of calibration curve information, a computing device computes the concentration of heat source side refrigerant in a heat medium relay unit from detected information received from a concentration detecting device.09-05-2013
20130227976AIR-CONDITIONING APPARATUS - An air-conditioning apparatus includes a heat medium flow control device that adjusts the flow rate of a heat medium circulating in a use side heat exchanger, temperature sensors that are disposed in an inlet-side passage and an outlet-side passage of the use side heat exchanger and that detect temperatures of the heat medium, and a controller that controls the heat medium flow control device so that a temperature difference between a detection value of the temperature sensors is equal to a first target value. A refrigerant flowing through a refrigerant flow passage of the heat exchanger related to heat medium and a heat medium flowing through a heat medium flow passage of the heat exchanger related to heat medium are in counter flow relative to one another, and the controller changes the first target value in accordance with an operation state of a refrigerant circuit.09-05-2013
20110265504REFRIGERATED MERCHANDISER - A refrigerated merchandiser including a case, a refrigeration system, a sensor, and a controller. The refrigeration system is operable in a defrost mode defrosting the evaporator, and a refrigeration mode discharging a refrigerated airflow into the product storage area to refrigerate the product and to maintain the product within a predetermined temperature range without freezing the product, and to receive the refrigerated airflow along a return passageway. The sensor senses one or more defrost conditions of the case. The controller controls the refrigeration system in the refrigeration mode and in the defrost mode, and includes an algorithm for calculating when to initiate the defrost mode and for calculating a duration of the defrost mode. The controller is programmed to vary the refrigeration system between the refrigeration mode and the defrost mode based on the signals indicative of the defrost conditions and the calculations by the algorithm.11-03-2011
20110265503REFRIGERATED MERCHANDISER - A refrigerated merchandiser including a refrigeration system, a first sensor in communication with the refrigerated airflow in a discharge passageway to sense a discharge airflow temperature, and a second sensor is in communication with the refrigerated airflow in the return passageway to sense a return airflow temperature. A controller is in electrical communication with the first sensor and the second sensor and controls a temperature of the product within a predetermined temperature range that is between about 22 degrees Fahrenheit and 23 degrees Fahrenheit based on at least one of the discharge airflow temperature and the return airflow temperature. The controller is further programmed to operate the refrigeration system such that the discharge airflow temperature is maintained above a temperature between about 10 degrees Fahrenheit and 30 degrees Fahrenheit to regulate an evaporation temperature of the evaporator to avoid freezing the product.11-03-2011
20120324927AIR CONDITIONING SYSTEM FOR VEHICLES - Disclosed is an air conditioning system for vehicles capable of operating control with a high degree of operating efficiency even in operating states wherein efficiency would be expected to decline, and while adhering to conventional control ideas. The air conditioning system for vehicles comprises a compressor that compresses a refrigerant; a condenser that condenses the compressed refrigerant; an expansion mechanism that expands the condensed refrigerant; an evaporator that evaporates the expanded refrigerant and brings the evaporated refrigerant into contact with air, cooling and dehumidifying the air; a blower that sends the air to the condenser; and a displacement control signal calculation means for determining a displacement control signal, using a displacement control signal calculation formula, which is to be inputted to the compressor from the outside. In the displacement control signal calculation means, a target air temperature at the evaporator exit is inputted, the displacement control signal is determined using the difference between the air temperature and the target air temperature at the evaporator exit when a displacement control signal calculated value is less than or equal to a predetermined value (A), and the displacement control signal is determined from the displacement control signal calculation formula when the displacement control signal calculated value is greater than the predetermined value (A).12-27-2012
20130014525SWITCHING DEVICE AND AIR-CONDITIONING APPARATUSAANM Koge; HirofumiAACI TokyoAACO JPAAGP Koge; Hirofumi Tokyo JPAANM Kawagoe; TomokazuAACI TokyoAACO JPAAGP Kawagoe; Tomokazu Tokyo JPAANM Azuma; KojiAACI TokyoAACO JPAAGP Azuma; Koji Tokyo JP - A switching device or the like efficiently performs operations such as the cutting off of a refrigerant and is easy to maintain, design, and manufacture at low cost even if the switching device is included in, for example, an air-conditioning apparatus including a plurality of indoor units. A plurality of shut-off valves for individually stopping the flow of a refrigerant are provided in a plurality of pipes for making a refrigerant circulate between a heat source unit and a plurality of indoor units. The shut-off valves are integrated into pairs. A number of pairs of the shut-off valves corresponding to the number of indoor units are grouped together.01-17-2013
20130019621REFRIGERATED DISPLAY APPLIANCES - A refrigerated display unit (01-24-2013
20130199223VARIABLE CAPACITY COMPRESSOR AND REFRIGERATOR - A reciprocating refrigerant compressor system is disclosed. The compressor system includes a cylinder, a piston disposed within the cylinder, at least one fluid passageway, and an actuator. The piston is movable between a bottom dead center (BDC) and a top dead center (TDC) position. The fluid passageway is disposed within the cylinder between the BDC and TDC position and defined by one or more apertures. The actuator is in operative communication with the aperture and is responsive to an environmental condition external to the compressor system to at least partially close the aperture.08-08-2013
20130174592OUTDOOR UNIT AND AIR-CONDITIONING APPARATUS - An outdoor unit includes a compressor that compresses a flammable refrigerant, a heat source side heat exchanger that exchanges heat between the refrigerant and air in an unconditioned space, an outdoor unit air-sending device disposed at a position where the air is enabled to flow out of a housing to the outside, the outdoor unit air-sending device being driven to maintain the concentration of the refrigerant in the housing at or below a predetermined concentration, and an outdoor unit controller that controls an operation of the compressor and an operation of the outdoor air-sending device. The outdoor unit controller allows the outdoor unit air-sending device to operate in order to maintain the concentration of the refrigerant at or below the predetermined concentration even when the compressor is stopped.07-11-2013
20130133347SYSTEM AND METHOD FOR COMPRESSION OF FLUIDS - A fluid compressor for compressing fluids and a method for operating the same are provided. The fluid compressor includes a compression chamber with an inlet for the fluid and an outlet for compressed fluid. The fluid compressor further includes a piston disposed within the compression chamber. The fluid compressor includes a driving system that includes piezoelectric actuator configured to cause displacement of the piston in the compression chamber. The driving system further includes an amplifying element that is coupled to the piezoelectric actuator in the direction of the movement of the piston to enhance the displacement of the piston caused by the piezoelectric actuator. One end of the amplifying element is fixed to a base of the fluid compressor and the piezoelectric actuator is disposed between the amplifying element and the piston.05-30-2013
20130233006AIR-CONDITIONING APPARATUS - An air-conditioning apparatus that includes a refrigeration cycle in which a compressor, a heat-source side heat exchanger, an expansion unit, and a load-side heat exchanger are included and are connected with refrigerant pipes, includes cutoff units capable of flowing or cut off a refrigerant circulating in the refrigeration cycle; a detection unit detecting leaking of the refrigerant on the basis of a resistance that changes with densities of plural kinds of leaked refrigerants; a concentration calculation unit calculating a concentration of a refrigerant that has leaked, on the basis of the resistance of the detection unit; a concentration detection unit outputting a calculation result of the concentration calculation unit in order that the calculation result is used for controlling the cutoff units; and a cutoff control unit controlling the cutoff units on the basis of an output of the concentration detection unit.09-12-2013
20130125572EFFICIENCY HEATING, VENTILATING, AND AIR CONDITIONING THROUGH INDIRECT EXTENSION OF COMPRESSOR RUN TIMES - A load control device for improving energy efficiency of a heating, ventilating, and air-conditioning (HVAC) system by controlling shed times of a compressor of the HVAC system. The load control device includes a compressor cutoff switch, a sensing circuit, and a processor. The processor determines a subsequent mandatory shed time based upon a previous shed time, a previous run time, and a minimum run time. A subsequent mandatory shed longer than the previous mandatory shed time causes a subsequent run time to be increased, thereby increasing system efficiency.05-23-2013
20080202133METHOD FOR COOLING DRINKS AND BEVERAGES IN A FREEZER AND REFRIGERATOR USING SUCH METHOD - A method for cooling a bottle in a freezer compartment of a refrigerator includes sensing the temperature of a zone of the freezer in which the bottle is placed, estimating the temperature of the bottle on the basis of the compressor status and of the sensed temperature of the zone, and informing the user when the estimated temperature of the bottle has reached a set value. The method can also be used for an automatically adjusted “shock freezing” process for any kind of food.08-28-2008
20100287963TEMPERATURE-CONTROLLED STORAGE DEVICE, PARTICULARLY A COOLING AND FREEZING CONTAINER FOR BLOOD PRODUCTS - The invention relates to a storage device 11-18-2010
20120255318REFRIGERATION APPARATUS - A refrigeration apparatus includes a refrigerant circuit having a main circuit performing a refrigeration cycle and a branch circuit which branches part of high-pressure liquid refrigerant flowing through the main circuit and leads the part of high-pressure liquid refrigerant from a high-pressure part of the main circuit to part of the main circuit having a pressure lower than that of the high-pressure part. The branch circuit is connected to a cooler configured to cool a power element(s) of a power supply device supplying power to drivers of components of the refrigerant circuit by refrigerant. In the refrigeration apparatus, an adjusting mechanism configured to adjust the state of refrigerant flowing through the branch circuit and adjust the temperature of refrigerant passing through the cooler to a target temperature is provided.10-11-2012
20120272672AIR-CONDITIONING APPARATUS - Providing an air-conditioning apparatus that is capable of securing safety while reducing load to the environment.11-01-2012
20130118195REFRIGERATING APPARATUS - A refrigerating apparatus includes a casing body attached to an opening formed at one end of a box-shaped cooling compartment so as to close the opening, a refrigeration cycle unit including a compressor and a radiator provided on an outer side of the cooling compartment relative to the casing body and an evaporator provided on an inner side of the cooling compartment relative to the casing body, a diagnosis process executer configured to control the refrigeration cycle unit to execute a diagnosis process for diagnosing a performance of the cooling compartment, and a performance determinator configured to determine the performance of the cooling compartment in the diagnosis process.05-16-2013
20130192283AIR-CONDITIONING APPARATUS - A refrigerant circuit device includes a compressor, a heat exchanger that is capable of exchanging heat between the refrigerant and a heat medium, and other components that are connected by pipes, in which the refrigerant circuit circulates a refrigerant. A heat medium circulating circuit circulates the heat medium in the heat exchanger. At least the compressor is housed in an outdoor unit, at least the heat exchanger is housed in a heat medium relay unit, and an indoor unit is housed in a use side heat exchanger. The outdoor unit, the heat medium relay unit, and the indoor unit are formed separately and can be disposed in separate positions. A housing of the heat medium relay unit has an opening that allows ventilation between the housing space of the heat exchanger related to heat medium and the space outside the housing space.08-01-2013
20120067070LOW TEMPERATURE HEAT PUMP - A reverse cycle heat pump system having an indoor heat exchange coil, an outdoor heat exchange coil, a compressor, and a compressor discharge line, and operable in an indoor heating mode and an indoor cooling mode. The outdoor coil is substantially larger than the indoor coil, and the compressor is a variable capacity compressor. The system also includes a sensor for determining one or more characteristics of the refrigerant in the compressor discharge line when the system is operating in its indoor heating mode, and a controller that adjusts the capacity of the compressor to maintain a sensor output value within a desired range of values when the system is operating in its indoor heating mode. The variable capacity compressor may be continuously variable, and may use a piston pump. The sensor determines one or more physical parameters of the refrigerant, such as pressure, temperature or density.03-22-2012

Patent applications in class Operatively correlated with automatic control