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| Number | Title | Issue Date |
| 7658080 | Method of controlling air conditioner for vehicles A vehicle air conditioner is controlled so a target control value of a pressure control valve controlling tilt angle of a swash-plate of a swash-plate type variable capacity compressor is variably controlled according to temperature deviation between target evaporat... | 02/09/2010 |
| 7536867 | Auger-type ice-making machine An auger type ice making machine is provided with a freezing cylinder (21) into which water for making ice is supplied, an ice-scraping auger (23) for scraping ice formed on the inner surface of the freezing cylinder (21), and an auger motor ( | 05/26/2009 |
| 7433890 | Method and apparatus for storing and retrieving data stored within an associated piece of equipment A method and apparatus that includes a storage device for securing data about an apparatus. The data is stored in a central location and can be accessed or written based upon privileges granted by a processor. ... | 10/07/2008 |
| 7370487 | Refrigerating cycle device capable of ensuring oil return Whether or not a flow rate of a circulating refrigerant is higher than a predetermined threshold value is judged and when the flow rate is higher than the predetermined threshold value, the discharge flow rate of a compressor 11 is controlled in accordance wi... | 05/13/2008 |
| 7328852 | Method and device for estimating the air discharge temperature of a heat exchanger The invention relates to a method for estimating a heater-core air discharge temperature of an HVAC system. According to the invention, the method uses a model of the heat exchanger. This heat exchanger efficiency model maps a heat exchanger efficiency to a set of a... | 02/12/2008 |
| 7201009 | Cooling apparatus There is provided a cooling apparatus which can improve a cooling efficiency while preventing an abnormal increase in pressure of a high side. The cooling apparatus comprises: a refrigerant circuit which uses carbon dioxide as a refrigerant; a control device which c... | 04/10/2007 |
| 7181922 | Automotive air conditioner A cooled air temperature detector detects the temperature of air that has just passed through a refrigerant evaporator. The detector detects air temperatures for a plurality of locations on the cooling unit. When determining a control condition (ON/OFF condition) of... | 02/27/2007 |
| 7150158 | Freezing prevention system for refrigeration device and air conditioner using the same A freezing prevention system for a refrigeration device includes a freezing-prevention temperature sensor for detecting a refrigerant temperature in a refrigerant evaporator, and a control unit for controlling operation of a refrigerant compressor based on the detec... | 12/19/2006 |
| 7140191 | Refrigerator and temperature sensor fixing method in the refrigerator A direct cooling type refrigerator capable of rapidly and accurately controlling the temperature thereof, reducing the ON/OFF time of its compressor, thereby preventing the temperature deviation of its storage compartment from increasing over a predetermined value. ... | 11/28/2006 |
| 7140196 | Chilled beverage dispenser with cradle evaporator A chilled beverage dispenser has a “holeless” bowl and uses a cradle evaporator to achieve cooling of the beverage. In one exemplary embodiment, the cradle evaporator comprises three panels—a bottom panel and two side panels, the side panels being bolted or si... | 11/28/2006 |
| 7131281 | Automotive HVAC system and method of operating same utilizing evaporator freezing The present invention concerns a method for cooling a passenger compartment in a hybrid vehicle that operates an engine intermittently during vehicle operation, the hybrid vehicle having an HVAC system including an HVAC duct, a blower adapted to direct a flow of air... | 11/07/2006 |
| 7100383 | Air conditioner for vehicle capable of recovering vehicle deceleration energy During the period of deceleration of a vehicle, an air conditioning control unit modifies a target cooling temperature (TEO) of an evaporator to a temperature lower than that before the deceleration by γ ° C. in order to store cold in the evaporator (step S130 | 09/05/2006 |
| 7082990 | Air conditioning apparatus for vehicle An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second air passage extending from an outside air suction port is disposed at a side of the first air passage to ... | 08/01/2006 |
| 7063138 | Automotive HVAC system and method of operating same utilizing trapped coolant The present invention concerns a method for cooling a passenger compartment in a hybrid vehicle that operates an engine intermittently during vehicle operation. The hybrid vehicle includes an HVAC system having an HVAC duct, a blower for directing a flow of air thro... | 06/20/2006 |
| 7032408 | Refrigerator with internal compartment divisible into independent temperature zones A refrigerator comprises a refrigerator housing having a compartment, this latter presenting side walls having brackets for at least one removable element for supporting products to be preserved and separating the compartment into separate zones, the compartment hav... | 04/25/2006 |
| 7032393 | Climate cooling control systems and methods for hybrid vehicles Methods and apparatus are provided for controlling the climate cooling in the passenger cabin of a hybrid motor vehicle. The apparatus includes an internal combustion engine capable of being started and temporarily stopped, an air conditioning compressor and a dedic... | 04/25/2006 |
| 7028791 | Mobile chassis and interchangeable vehicle body with a heating, ventilation and air conditioning system A mobile chassis for vehicle body interchangeability has a heating, ventilation, and air conditioning (HVAC) system packaged in a rolling platform. The system is connected to a powertrain cooling loop for waste heat circulation and to an electric air conditioning co... | 04/18/2006 |
| 7000414 | Defrost and refrigerator employing the same A refrigerator having a main body, and a compressor and an evaporator in the main body, comprises a heat pipe forming a closed loop so as to allow the refrigerant to be circulated therein; a first heat exchanger provided in the heat pipe, absorbing heat generated fr... | 02/21/2006 |
| 6966195 | Air conditioning system To provide an air conditioning system which simultaneously eliminates shortage of lubricating oil of a variable displacement compressor and degradation of cooling efficiency of the system. An air conditioning system is configured to have a variable displacement comp... | 11/22/2005 |
| 6935127 | Refrigerator A refrigerator which performs various refrigeration cycles by variously changing refrigerant paths, thus accomplishing refrigerant evaporating temperatures suitable for a refrigerator compartment evaporator and a freezer compartment evaporator, respectively, and whi... | 08/30/2005 |
| 6840053 | Temperature control using infrared sensing A system and method for sensing and controlling the temperature of a heating, ventilation and air conditioning (HVAC) system utilizes an infrared sensor. The infrared sensor is used to detect temperature over several different areas on an evaporator surface on which... | 01/11/2005 |
| 6748755 | Refrigeration system utilizing incomplete evaporation of refrigerant in evaporator A refrigeration system allows the refrigerant to circulate through a closed circulation channel. A dry evaporator is incorporated in the circulation channel. The dry evaporator is designed to keep a quality smaller than 1.0 in evaporating the refrigerant. The quanti... | 06/15/2004 |
| 6708512 | Vehicle air conditioner with cold accumulator In a vehicle air conditioner, a cold accumulator is disposed at a downstream air side of an evaporator to be cooled by cold air after passing through the evaporator. A cold accumulating material is sealed within the cold accumulator to be solidified while being cool... | 03/23/2004 |
| 6625997 | Automotive air conditioning system An automotive air conditioning system is provided comprising a duct for introducing a flow of air into a vehicle cabin, a closed-loop refrigeration circuit including a condenser and an evaporator, a temperature sensor arrange in the duct for measuring the... | 09/30/2003 |
| 6578373 | Rate of change detector for refrigerant floodback A floodback detector for refrigerant systems employing any of: minimum suction temperature, temperature rate of change and duration thereof; minimum superheat, superheat rate of change and duration thereof.... | 06/17/2003 |
| 6490876 | Method and apparatus for de-icing dehumidifier A method and apparatus for operating a dehumidifier in a de-ice mode is provided wherein the dehumidifier has an evaporator coil, a fan operated by a fan motor to cause a flow of ambient air over the evaporator coil, and a compressor operated by a compres... | 12/10/2002 |
| 6460359 | Method and device for cool-drying The present invention concerns a method for cool-drying gas containing water vapor, whereby this gas is guided through the secondary part of a heat exchanger (1) whose primary part is the evaporator (2) of a cooling circuit (3) which also contains a compr... | 10/08/2002 |
| 6453685 | Control apparatus and control method for variable displacement compressor An improved control apparatus for controlling the displacement of a variable displacement compressor. A control valve includes an operating rod, which is urged by a force based on a differential pressure between two pressure monitoring points, which are l... | 09/24/2002 |
| 6434958 | Ambient humidity compensation method for a vehicle climate control system The control settings of a vehicle climate control system are adjusted in accordance with a relative ambient humidity correction to compensate for variations in relative ambient humidity, and the correction is based on normally measured system operating pa... | 08/20/2002 |
| 6427465 | Compressor control system and method An apparatus and system for manipulating the air temperature within an interior compartment of a vehicle, the apparatus cycles a compressor between an off and on position based upon a temperature reading of the evaporator fins positioned to cool the air o... | 08/06/2002 |
| 6389824 | Controller for variable displacement compressor A controller controls a displacement of a compressor which is installed in a refrigerant circuit of an air-conditioning system. The controller has a pressure difference detector. An air conditioning switch turns the air conditioning system on. A temperatu... | 05/21/2002 |
| 6332329 | Swash plate type variable displacement compressor When a solenoid 42 of a flow-rate control valve drive mechanism is demagnetized, a pilot valve 41 is closed for introduction of working pressure into a pressure chamber 35 of a flow-rate control valve 31 to be stopped, and a spool valve 33 is closed for a... | 12/25/2001 |
| 6298673 | Method of operating a refrigerated merchandiser system A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50), and an evaporator pressure control device (60) connected in a closed refrigerant circuit via re... | 10/09/2001 |
| 6293116 | Humidity control method for a variable capacity vehicle climate control system An improved vehicle climate control system in which the passenger compartment temperature and humidity are controlled without requiring a humidity sensor. The control is based on the recognition that the air temperature at the evaporator outlet represents... | 09/25/2001 |
| 6266967 | Refrigerant cycle system for vehicle air conditioner In a refrigerant cycle system for a vehicle air conditioner, when a continuous operation time of a compressor elapses a predetermined time after the compressor operates, operation of the compressor is forcibly interrupted so that a refrigerant pressure at... | 07/31/2001 |
| 6192698 | Vehicle-air-conditioning system with cooling degree estimator for left/right temperature control In an air-conditioning system having two air-conditioning passages serving two different air-conditioning zones but having a cooling degree detector provided in only one of the passages to reduce cost, with the degree to which air is cooled in the other p... | 02/27/2001 |
| 6161393 | Control system for mobile air conditioning apparatus A control system for mobile air conditioning systems for controlling the rate at which the system compressor or clutch is cycled between operational and decreased refrigerant flow, by selectively controlling the response time of certain system control sig... | 12/19/2000 |
| 6138465 | Method for controlling the temperature of a refrigeration unit and temperature control arrangement for a refrigeration unit The invention concerns a method for controlling the temperature of a refrigeration unit (1) with a refrigerating compartment (3), a freezing compartment (2) and a common evaporator (4) of a cooling circuit, and a corresponding temperature control arrangem... | 10/31/2000 |
| 6116036 | Self regulating device for controlling refrigerators and freezers A self-regulating device for controlling refrigerating appliances, such as refrigerators or freezers, preferably domestic, which comprise a refrigerating circuit with compressor, evaporator, condenser and controlling means of the compressor with a tempera... | 09/12/2000 |
| 6109048 | Refrigerator having a compressor with variable compression capacity Disclosed is a refrigerator comprising: a compressor having a driving motor with controllable rotation speed, an exterior sensor for sensing an exterior temperature, an evaporator sensor for sensing an evaporator temperature, a selection part for selectin... | 08/29/2000 |
