Class / Patent application number | Description | Number of patent applications / Date published |
062157000 | Time or program actuator | 52 |
20080202135 | Air conditioner energy saving unit and system using same - An energy saving apparatus and system for air conditioning and heating systems that is adapted for easy retrofit into already built rooms. A shut off apparatus for air conditioning systems utilizing standard dependable components. The apparatus may have a sensor for sensing open doors and windows and a timing portion that will shut off power to an air conditioner after a period of time. | 08-28-2008 |
20080236177 | Monitoring and Control System For Air Conditioner - An air conditioner monitor and control system ( | 10-02-2008 |
20080295531 | METHOD TO CONTROL SLEEP OPERATION OF AIR CONDITIONER - A method to control the sleep operation of an air conditioner is provided. The method includes determining whether or not a sleep operation is activated and sequentially performing a plurality of sub-modes of the sleep operation when the sleep operation is activated. | 12-04-2008 |
20090019868 | AIR CONDITIONER - An outdoor unit of an air conditioner includes a plurality of constant capacity compressors, a variable capacity compressor and a controller. The plurality of constant capacity compressors compress refrigerant in a predetermined capacity. The variable capacity compressor is capable of having its capacity changed and compressing varying amounts of refrigerant. The controller sequentially causes the plurality of constant capacity compressors to start up and regulates the operating frequency of the variable capacity compressor after start up of the plurality of constant capacity compressors. | 01-22-2009 |
20090145145 | AIR CONDITIONER - An air conditioner preferably includes a selection component (switch) and an air conditioning data acquisition/processing component (printed wiring board). Preferably, a storage component (EEPROM) records at least two sets of data of whether or not an option function is being executed and a drive condition of a compressor relating to air conditioning that the printed wiring board acquires. The switch receives display setting data indicating either one of the two sets of data. The printed wiring board includes an output port that alternatively outputs one of the data of whether or not the option function is being executed and the data of the drive condition of the compressor, and the printed wiring board performs data output processing from the output port in accordance with the display setting data that the switch has received. | 06-11-2009 |
20090145146 | Refrigeration cycle device, and air conditioner for vehicle - In a refrigeration cycle device in which a compressor is driven by power transmitted from an engine, a torque limiter is adapted to interrupt a transmission of the power from the engine to the compressor when a toque transmitted from the engine to the compressor becomes a predetermined value. A control unit is adapted to determine whether the transmission of the power from the engine to the compressor is interrupted by the torque limiter by determining whether a deviation of a refrigerant discharge pressure of the compressor is below a predetermined pressure when the control unit commands the compressor to change the refrigerant discharge flow amount of the compressor. Thus, the control unit can determine whether the torque limiter interrupts the transmission of power from the engine to the compressor without, using a compressor revolution sensor. | 06-11-2009 |
20090145147 | INDOOR AND OUTDOOR UNIT COMMUNICATION VIA SIGNAL FROM A POWER LINE - An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line. | 06-11-2009 |
20090158758 | INDOOR AIR CONDITIONER AND OPERATION CONTROL METHOD THEREOF - The present inventors took notice of the fact that a person has constant repetitive nature in timing of restart of an indoor air conditioner after the OFF timer was ended, and it is an object of the present invention to provide an indoor air conditioner and an operation control method thereof capable of obtaining comfortable sleep by setting an automatic start condition suitable for a user. The indoor air conditioner includes an OFF timer function for continuing the operation until set time is elapsed, time elapsed until restart by restart input means | 06-25-2009 |
20090173093 | Refrigerator - A refrigerator capable of properly cooling a plurality of containers storing a liquid beverage by uniformizing and stabilizing a temperature inside a cooling chamber. The refrigerator comprises the cooling chamber storing the containers of the liquid beverage, a cooling duct incorporating a heat exchanger, the suction port of the cooling duct installed in the cooling chamber, the cool air blowout port of the cooling duct installed in the cooling chamber, a lead-in port formed at the upper end of a cool air feed duct, through holes blowing out the air in the cool air feed duct into the cooling chamber, and a fan positioned the lead-in port of the cool air feed duct. The cool duct sucks the air in the cooling chamber from the suction port, cools it by the heat exchanger, and blows it out from the cool air blowout port. The lead-in port of the cool air feed duct faces the cool air blowout port of the cooling duct and also faces the inside of the cooling chamber. Air is sucked into the cool air feed duct by the fan. | 07-09-2009 |
20090199580 | AIR CONDITIONING SYSTEM CONTROL - A cooling system for cooling a room containing a plurality of computer devices is provided. The cooling system has a number of cooling supplies and at least one temperature sensor. Using the at least one temperature sensor and altering the cooling supplied to the room by the cooling supplies, the affect of each cooling supply on the temperature of the room can be approximated and used for the operation of the cooling system. | 08-13-2009 |
20090211279 | AIR CONDITIONER AND METHOD OF CONTROLLING THE SAME - An air conditioner and a method of controlling the same are provided. The air conditioner may include an outdoor unit, one or more indoor units operably coupled to the outdoor unit, a temperature sensor, a valve driver, and a controller. By monitoring an actual temperature and comparing the actual temperature to a desired temperature, a flow path, of flow direction, and flow capacity flowing to the one or more indoor units to adjust a heating/cooling capacity thereof as appropriate. | 08-27-2009 |
20090217685 | SYSTEM AND METHOD FOR CONTROLLING THE AIR-CONDITIONING SYSTEM OF A VEHICLE WITH REDUCED ENERGY CONSUMPTION - An air-conditioning system ( | 09-03-2009 |
20090217686 | SYSTEM AND METHOD FOR SECONDARY COOLANT PUMP CONTROL FOR A REFRIGERATION SYSTEM - A system and method is provided for controlling the operation of secondary coolant pump(s) in a refrigeration system having a secondary coolant system that circulates the coolant to applicable cooling loads, and a primary refrigeration system that chills the coolant in the secondary coolant system. The system and method for controlling the pumps measures the pressure of the plurality of secondary coolant fluid loops, sorts the measurements to identify a secondary coolant fluid loop with a pressure farthest from a setpoint, and adjusts pump speed to compensate for the critical loop (i.e., the secondary coolant fluid loop with a pressure furthest from the setpoint). | 09-03-2009 |
20100064706 | CONTROL DEVICE, METHOD, AND PROGRAM OF PERMANENT-MAGNET TYPE SYNCHRONOUS MOTOR - There is provided a control device of a permanent-magnet type synchronous motor that sets a synchronous operation current at start-up in response to a current limiting value determined from the temperature of an inverter that supplies three-phase power to the permanent-magnet type synchronous motor, that monitors an output voltage or an output current of the inverter during a rotation stabilizing period after start-up, and that updates the synchronous operation current using this output voltage or output current. | 03-18-2010 |
20100132388 | AIR CONDITIONING CONTROL DEVICE FOR VEHICLE - An air conditioning control device for a vehicle has an air conditioner for conditioning air in a vehicle interior, an input receiving unit for receiving inputs of both planned departure time of the vehicle and a target temperature in the vehicle interior, a pre-air-conditioning control unit for starting operation of the air conditioner at an air conditioning start time before the planned departure time so that the temperature in the vehicle interior at the planned departure time becomes the target temperature, and an outdoor air temperature acquisition unit for acquiring outdoor air temperature. The pre-air-conditioning control unit changes the air conditioning operation start time based on the outdoor air temperature acquired by the outdoor air temperature acquisition unit. | 06-03-2010 |
20100146997 | CONTROLLING PROCESS FOR REFRIGERATOR - According to a method of controlling a refrigerator in accordance with the present invention, in the case in which a refrigerating chamber or a freezing chamber has to be cooled, the refrigerating chamber is primarily cooled up to a cooling temperature set higher than a target temperature region and the freezing chamber is then cooled. Accordingly, there is an advantage in that temperatures of the refrigerating chamber and the freezing chamber can be cooled to a temperature wanted by a user more rapidly. | 06-17-2010 |
20100170272 | CONTROL METHOD AND DEVICE FOR AN AIR CONDITIONING ECONOMIZER SYSTEM - In an air conditioning economizer system outdoor air intake is reduced automatically by a control device based on a shut-off control setting for a measured outdoor air quality. A geographical location associated with the air conditioning economizer system is received (S2) in the control device. The control device defines automatically (S3) the shut-off control setting based on the geographical location. Thus, the air conditioning economizer system is adapted specifically for a geographic location and its climate zone, without the requirement for installing or operating personnel to determine a shut-off control setting for a specific climate zone and/or select a corresponding operating range. | 07-08-2010 |
20100212341 | METHODS AND SYSTEMS FOR CONTROLLING A COOLING SYSTEM USING ONE DIGITAL SIGNAL - Systems and methods that receive a digital signal outputted from a single line of a device are disclosed. Embodiments of the systems and methods calculate the temperature of the device based on the digital signal. Embodiments of the systems and methods generate a signal to a cooling system to cool the device when the calculated temperature of the device is higher than a predetermined temperature. | 08-26-2010 |
20110107781 | STARTUP CONTROL APPARATUS OF AIR CONDITIONER - An air conditioner performs startup control in which compressor capacity is reduced as measured indoor temperature approaches a set temperature. A desired time of day is set directly or indirectly. A startup control apparatus of the air conditioner measures an inflection point occurrence time from when the air conditioner starts operation until when measured indoor temperature exhibits an inflection point. Alternatively, the startup control apparatus measures a control parameter lowering arrival time from when the air conditioner starts operation until when a control parameter transmitted to the compressor decreases to a prescribed value. A scheduled operation start time of the air conditioner is set as a time of day that is the desired time of day set moved forward by the inflection point occurrence time or the control parameter lowering arrival time. Operation of the air conditioner is started when the scheduled operation start time arrives. | 05-12-2011 |
20110197606 | REFRIGERATION SYSTEM - The refrigeration system includes a compressor; a condenser connected to a first inlet of a separating means which has: a vapor outlet connected to the compressor and a liquid outlet connected to an evaporator; a selecting valve having: a first vapor inlet connected to the evaporator; a second vapor inlet connected to the separating means; and a vapor outlet connected to the compressor, said selecting valve being operated to selectively and alternatively communicate its first and second vapor inlets with its vapor outlet, so as to allow the compressor to draw vapor from the separating means and from the evaporator; and a control unit for controlling the operation of the selecting valve. | 08-18-2011 |
20120000226 | Automatic Ice Making Machine - An automatic ice making machine is provided that is capable of modifying an amount of feeding water depending on a temperature of makeup water. The automatic ice making machine is equipped with a deicing timer | 01-05-2012 |
20120023987 | REFRIGERATION DEMAND RESPONSE RECOVERY - A refrigerator comprises a fresh food compartment and a freezer compartment and one or more power consuming features/functions including a refrigeration system for cooling the fresh food compartment and the freezer compartment. A controller is operatively connected to the one or more power consuming features/functions. The controller is configured to receive and process a signal indicative of current state of an associated energy supplying utility. The controller adjusts the temperature of the refrigerator and/or freezer from a normal setting to a higher point during an energy saving mode and then back to a normal temperature. The transition between low and high is controlled to reduce energy consumption. | 02-02-2012 |
20120042672 | AIR CONDITIONER CONTROL APPARATUS, COOLING SYSTEM, AND AIR CONDITIONER CONTROL PROGRAM - An air conditioner control apparatus capable of suppressing electric power consumed by an air conditioner which is for cooling the interior of a room, as well as a cooling system and an air conditioner control program, are provided. | 02-23-2012 |
20120111042 | HEAT PUMP APPARATUS - In a heat pump apparatus, it is aimed to enhance efficiency of a defrost operation by reducing a loss of heat radiation during the defrost operation and reducing a compressor input during the defrost operation. The heat pump apparatus includes a main refrigerant circuit in which a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger are connected sequentially, and also includes a bypass circuit including an on-off valve and providing a connection by bypassing the expansion mechanism. The main refrigerant circuit includes a four-way valve that switches between a heating operation and the defrost operation by switching an order in which the refrigerant circulates through the main refrigerant circuit. The main refrigerant circuit also includes a first temperature detection unit and a second temperature detection unit. Based on values detected by these temperature detection units, a degree of superheat of the first heat exchanger during the defrost operation is computed. When the heating operation is switched to the defrost operation, the heat pump apparatus increases a circulation amount of the refrigerant circulating through the refrigerant circuit by opening the on-off valve, and also controls an operation frequency of the compressor such that the degree of superheat is at a predetermined target value. | 05-10-2012 |
20120117995 | Energy Saving Device And Method For Cooling And Heating Apparatus - An energy saving device, a heating/cooling system and a method for controlling a heating/cooling system control the on/off state of an apparatus which is used for heating or cooling a working medium. A timer ( | 05-17-2012 |
20120144852 | AIR-CONDITIONING APPARATUS - When a compressor is in a stopped state and an outside air temperature change rate Tah exceeds zero, a first heating operation is started, and a heating capacity of a compressor heating portion is set in a range not more than a heating capacity upper limit Pmax based on the outside air temperature change rate Tah. A remaining refrigerant liquid amount Ms condensed in the compressor that had not been evaporated is acquired based on the outside air temperature change rate Tah and the heating capacity. If the outside air temperature change rate Tah is zero or below and the remaining refrigerant liquid amount Ms exceeds zero while the compressor is in a stopped state, a second heating operation is started, the compressor heating portion | 06-14-2012 |
20120151948 | REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus | 06-21-2012 |
20120304676 | ICE MAKING ASSEMBLY WITH OPTIMIZED HARVESTING AND RELATED REFRIGERATION APPLIANCE - An ice making assembly for a refrigeration appliance includes an ice maker having a mold body defining a plurality of compartments for forming ice cubes therein, a heating element for heating the ice cubes to create a melted portion to assist in removal of the ice cubes from the compartment, and a harvesting assembly including a plurality of elements attached to a rotatable rod. Each element is movable via rotation of the rod through a respective one of the compartments to remove an ice cube from the compartment. Rotation of the rod stopping for a period of time at a stop position in which a removed ice cube can rest atop the harvesting assembly to refreeze the melted portion. Related refrigeration appliances are also disclosed. | 12-06-2012 |
20120324931 | Pressure swing adsorption / desorption heating, cooling, and energy storage process and apparatus - The invention described herein enables a variety of heating, cooling, energy transformation, and energy storage options with a small number or components. Described are Pressure Swing Adsorption and Pressure Swing Desorption cycles, processes, and apparatuses including multiple sorption beds and active energy input by a pump and energy storage as pressure differentials. A preferred embodiment includes two zeolite 13X sorption beds, CO2 adsorbate, solenoid valves, and a compressor pump. In operation these components provide a range of heating, cooling, and energy storage options. Operational cycles are described. | 12-27-2012 |
20120324932 | AIR-CONDITIONING APPARATUS - To provide an air-conditioning apparatus that reduces large refrigerant noise generated when changing an operation mode. In an air-conditioning apparatus, when switching to a second operation mode from a first operation mode, switching to the second operation mode is performed after a predetermined time has elapsed after controlling either or all of expansion devices, controlling either or all of second flow switching devices, and controlling either or all of a first on-off device and a second on-off device such that a pressure difference of a heat source side refrigerant before and after each of the expansion devices is smaller compared to that in an operation state of the first operation mode. | 12-27-2012 |
20130067944 | OPERATION CONTROL APPARATUS OF AIR-CONDITIONING APPARATUS AND AIR-CONDITIONING APPARATUS COMPRISING SAME - An operation control apparatus of air-conditioning apparatus having an outdoor unit and an indoor unit, includes a controller programmed to execute energy conservation control of the air conditioning apparatus. The controller includes at least one required temperature calculation part calculating a required evaporation temperature or a required condensation temperature based on either a current amount, of heat exchanged in a usage-side heat exchanger of the indoor unit and a greater amount of heat exchanged in the usage-side heat exchanger than the current amount, or an operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and an operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount. | 03-21-2013 |
20140060098 | REFRIGERATING APPARATUS - A refrigerating apparatus includes first and second refrigerant circuits including respective first and second compressors, condensers, pressure reducers, and evaporators, connected circularly with first and second refrigerant pipes, respectively, refrigerants discharged from the first and second compressors being respectively condensed at the first and second condensers and thereafter respectively evaporated at the first and second evaporators to acquire a cooling effect; a temperature sensor that detects a temperature of an internal portion of a cold storage cabinet, the first and second evaporators being disposed to cool the internal portion simultaneously; and a first control device that controls the first and second compressors such that the first compressor and the second compressor start being alternately operated each time a temperature detected by the temperature sensor reaches a first temperature, and are continuously operated until the detected temperature reaches a second temperature lower than the first temperature. | 03-06-2014 |
20140352337 | Fridge/freezer miser - The Fridge/Freezer Miser is a new device that allows the refrigerator or freezer that will run about half the time of normal and maintain food freshness while saving from 50% to almost 70% on the monthly electric bill. | 12-04-2014 |
20150059376 | PROGRAMMABLE DRAIN PUMP - Evaporative cooler apparatus includes two pumps, a primary pump which pumps water to an evaporative medium and a secondary pump for pumping water from the bottom of the cooler to drain the water reservoir of the cooler. The secondary, or drain pump includes a programmable timer that is operable by a user to select a run time duration for the pump motor from a plurality of possible run times. The programmable drain pump also includes a user control for selection of an off-state time from a plurality of available off-state times or intervals between run times of the drain pump motor. The programmable drain pump also includes a constant on control and a test control. | 03-05-2015 |
20150075195 | MOTOR CONTROL DEVICE AND AIR CONDITIONER - A motor control device includes a PWM signal generation unit generating a signal pattern of two of three phases so that the pattern follows a rotor position, and a timing adjusting unit. The signal generation unit increases/decreases duty in both directions of lag side and lead side based on any phase of a carrier-wave period regarding a first phase. The signal generation unit increases/decreases duty in one direction regarding a second phase. The signal generation unit increases/decreases duty in a direction opposite to the second phase regarding a third phase. The timing adjusting unit adjusts detection timing so that a current detection unit detects current in fixed timing with respect to one phase and current in another fixed timing with respect to the other phase or the current detection unit is capable of detecting current in variable timing according to magnitude of output voltage to an inverter circuit. | 03-19-2015 |
20150101358 | CONDENSATE MANAGEMENT SYSTEM AND METHODS - A condensate management system for an air conditioning condensate drainage system is provided. The condensate management system may comprise an inlet and an outlet; a primary condensate flow path from the inlet to the outlet; a check valve disposed along the primary condensate flow path; a flush path from the inlet to the outlet; a pump coupled to the flush path; and a logic panel configured to actuate the pump to a flushing mode. The check valve may be configured to allow fluid flow from the inlet to the outlet. When the logic panel is configured to actuate the pump to the flushing mode, the pump is configured to exert a negative pressure at the inlet and a positive pressure at the outlet. Other system and methods to flush a condensate drain system are also described. | 04-16-2015 |
20150121926 | REFRIGERATOR - A refrigerant is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a first expansion device that decompresses the refrigerant condensed in the condenser, a gas/liquid separator that separates the refrigerant decompressed in the first expansion device into a liquid refrigerant and a gaseous refrigerant, first and second evaporators, to which the liquid refrigerant separated in the gas/liquid separator may be introduced, and a second expansion device disposed at an inlet-side of the second evaporator to decompress the refrigerant. | 05-07-2015 |
20150121927 | REFRIGERATOR - A refrigerator is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a refrigerant tube that guides the refrigerant condensed in the condenser, a plurality of evaporation passages, in which expansion devices may be respectively disposed, the plurality of evaporation passages branching from the refrigerant tube, a flow adjuster disposed in the refrigerant tube to supply the refrigerant into at least one evaporation passage of the plurality of evaporation passages, a plurality of evaporators, respectively, connected to the plurality of evaporation passages to evaporate the refrigerant decompressed in the plurality of expansion devices, and a liquid refrigerant supply device disposed at an outlet-side of the condenser to separate a liquid refrigerant of the refrigerant heat-exchanged in the condenser, thereby supplying the liquid refrigerant into the flow adjuster. | 05-07-2015 |
20160001628 | VEHICLE AIR CONDITIONER - A vehicle air conditioner includes: a condenser that internally circulates a high-temperature and high-pressure refrigerant which is discharged from a compressor and that heats air passing around the condenser; an evaporator that internally circulates a low-temperature and low-pressure refrigerant and that absorbs heat from the air passing around the evaporator; and a switching portion that switches flows of air in response to a heating time, a cooling time, and a dehumidifying-heating time of a vehicle. Also, the switching portion causes the air passing around the condenser to flow into a vehicle compartment during the heating time of the vehicle, causes the air passing around the evaporator to flow into the vehicle compartment during the cooling time of the vehicle and causes the air sequentially passing through the evaporator and the condenser to flow into the vehicle compartment during the dehumidifying-heating time of the vehicle. | 01-07-2016 |
20160116194 | WATER SAVING COOLER - An evaporative cooler has a housing with evaporative media at air inlets. A blower draws air into the inlets and through the media and then out an air outlet from the housing. A water pump in a water reservoir pumps water onto the media so that evaporation of the water cools the air being output by the blower. A timer is connected to the water pump to switch between ON operation that pumps water to the media and an OFF state in which the pump is not operated. The pump is cycled during operation of the cooler. | 04-28-2016 |
20160153709 | Beverage Container Cooling System and Method | 06-02-2016 |
20160187044 | Variable Differential and Offset Control for Refrigeration Systems - A beverage dispensing apparatus is characterized by a beverage dispenser and a refrigeration system for chilling beverage to be dispensed by the beverage dispenser. The refrigeration system has a compressor coupled to an evaporator for chilling the beverage, and a controller determines the amount of chilling that must be provided by the refrigeration system to chill the beverage and adjusts cut-in and cut-out beverage temperature set-points for the compressor accordingly. Advantageously, the cut-in and cut-out set-points are adjusted to beverage temperature values such that the chilling capacity of the refrigeration system is made to closely match to the amount of chilling required by the beverage, and also such that on/off cycles of the refrigeration system are decreased. | 06-30-2016 |
20160200170 | EJECTOR-TYPE REFRIGERATION CYCLE | 07-14-2016 |
20160201956 | REFRIGERATION DEVICE | 07-14-2016 |
062158000 | Time delay of condition sensing or control operation | 8 |
20080245084 | Apparatus and method for controlling stop operation of air conditioner - An apparatus for controlling a stop operation of an air conditioner includes: a compressor for compressing a refrigerant; an indoor heat exchanger for heat-exchanging between the refrigerant and indoor air; an indoor fan for blowing the heat-exchanged indoor air to indoors; and a controller. The controller controls, in response to an operation stop signal in operation, an operation of the indoor fan based on whether or not an operation of the compressor has completely stopped. | 10-09-2008 |
20080264083 | Gasoline-saving Vehicle A/C Controller - This invention discloses a gasoline-saving vehicle A/C controller, comprising a timer with a control button and a junction. The control button of the timer is set to a pre-determined ON/OFF schedule; the junction is switched on and off by the timer in accordance with the ON/OFF schedule of the control button. The junction is connected in series to the thermo control system. When the junction is electrically activated, the vehicle A/C system of clutch relay, the compressor clutch and the compressor is correspondingly activated. | 10-30-2008 |
20090038323 | Method for Operating a Refrigerator, and a Refrigerator in Which the Compressor Is Switched On With a Time Delay - A refrigeration device is provided and includes a compressor with a compressor inlet and a compressor outlet, an evaporator with an evaporator inlet and an evaporator outlet, a valve, connection lines, and a control unit. The compressor and the evaporator are part of a coolant circuit and the valve is arranged in the coolant circuit between the compressor outlet and the evaporator inlet. The compressor and the valve are actuated by the control unit, wherein the control unit has a delay unit which causes the compressor to be switched on with a time delay only after the valve is opened. | 02-12-2009 |
20100011789 | VEHICLE HVAC CONTROL - A method of controlling a HVAC system for a hybrid vehicle having a refrigerant compressor driven by an engine is disclosed. The method may comprise: determining a requested air conditioning operating point for a passenger compartment; estimating a time to reach the requested operating point; based on the previous steps, estimating a maximum allowed compressor off time; determining if the allowed compressor off time is greater than a minimum engine off time; if the allowed compressor off time is greater than the engine off time, determining if the vehicle is entering an allowable engine off mode; if so, commencing engine shut-off mode; if engine shut-off is anticipated, prior to commencing the shut-off mode, adjusting the HVAC system to maximize cooling of the passenger compartment with minimum energy usage; and if the engine shut-off is commenced, monitoring the HVAC system to determine when engine restart is needed to maintain comfort. | 01-21-2010 |
20100037640 | METHOD FOR ADJUSTING A NATURAL REFRIGERATION CYCLE RATE OF AN AIR CONDITIONER - A method for adjusting a natural refrigeration cycle rate of an air conditioner includes monitoring a time between at least two sequential refrigeration “off” events or at least two sequential refrigeration “on” events, and determining whether the time is below or above a predetermined time. If the time is below the predetermined time, the method further includes increasing a refrigeration “on” temperature threshold. If, however, the time is above the predetermined time, the method further includes decreasing the refrigeration “on” temperature threshold. | 02-18-2010 |
20100300131 | Cooling system - The cooling system supplements the cooling of a walk-in cooler by injecting outside cold air via an outside air intake. The system includes air intake ductwork adapted to vent cold outside air into the walk-in cooler and air return ductwork that circulates the air to provide cross-flow of the injected cold air. Inline fans are connected to an interior thermostat. Motorized dampers are connected to a thermostat with an exterior temperature probe. The system thermostats are set slightly cooler than any pre-existing thermostat operating the pre-existing refrigeration system. | 12-02-2010 |
20160081365 | APPARATUS AND METHODS FOR PRODUCING BEVERAGES - A modular ice delivery system ( | 03-24-2016 |
20160131387 | AIR CONDITIONER - An air conditioner includes an outdoor device and an indoor device. The outdoor device includes an outdoor control unit that is operated at the voltage of a smoothing capacitor; a power-supply switching relay to which a signal line is connected; an inrush-current preventing-relay drive unit that is operated when single-phase AC power is supplied between a power-signal common line and the signal line via an outdoor activation relay in the indoor device and the power-supply switching relay; a first inrush-current preventing relay that is connected in parallel with a power supply relay and is controlled by the inrush-current preventing-relay drive unit; and a second inrush-current preventing relay that is connected in parallel with the first inrush-current preventing relay and is controlled by the outdoor control unit. The outdoor control unit closes the second inrush-current preventing relay when the external power supply is interrupted. | 05-12-2016 |