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7617692 |
Fuel efficient method and system for hybrid vehicles
A method and system determines when a climate control system of a hybrid vehicle can be operated without the use of an A/C compressor. The method and system make this determination by determining...
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7579794 |
Fan system with hysteresis character and method thereof
A fan system includes a fan, a hysteresis circuit including a temperature sensor, a first operational amplifier having a negative input end coupled to the temperature sensor, and a second...
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7562698 |
Vehicular air-conditioning system
An air-conditioning system for a vehicle having an engine adapted to stop idling on predetermined stop conditions of the vehicle, which system comprises an electric motor for driving a refrigerant...
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7506520 |
Method for controlling operation of refrigerator
A method for controlling operation of a refrigerator to enable independent cooling of a freezing chamber and a refrigerating chamber. The method prevents temperature rising of the refrigerator by...
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7478537 |
Method of controlling vehicular air-conditioner
A vehicular air-conditioner includes a compressor to be driven by an engine. The vehicular air-conditioner includes a controller configured to reduce a load on the compressor in response to a...
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7458226 |
Air conditioning system, vehicular air conditioning system and control method of vehicular air conditioning system
An air conditioning system comprises a compressor 2 which compresses a refrigerant made of carbon dioxide, a radiator 4 which radiates heat of the refrigerant compressed by the compressor 2 ,...
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7448226 |
Refrigerator
A refrigerator has a refrigerating cycle sequentially connecting a compressor, a condenser, a drawing mechanism, and evaporator, an accumulator, an inlet temperature sensor and an outlet...
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7441414 |
Method for pre-cooling automotive vehicle passenger compartment
The present invention concerns a method for pre-cooling the passenger compartment of an automotive vehicle. The vehicle includes at least one electrically actuatable window and a HVAC system having...
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7404435 |
Air conditioner for vehicle use
An air conditioner for automotive vehicle use intended to prevent a defrosting operation in an instantaneous foot-defroster mode. The DEF mode in which air mainly from a DEF opening is blown toward...
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7360372 |
Refrigeration system
A refrigeration system to increase the subcooling degree of refrigerant flowing through a main refrigerant circuit is provided. The refrigeration system is configured such that a portion of the...
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7337623 |
Fuzzy-logic based controller to regulate aircraft temperature
Temperature regulation by means of a PID regulation method can be associated with disadvantageous oscillations, overshooting and long control times. According to an exemplary embodiment of the...
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7272945 |
Environmental condition measurement system
A system for detecting at least one environmental condition in a room. The system includes one or more detecting devices having a sensor configured to detect the at least one environmental...
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7266959 |
Cold climate air-source heat pump
An improved cold climate air-source heat pump comprising at least a primary compressor, a booster compressor, a first heat exchanger associated with an indoor environment and a second heat...
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7245486 |
Cooling air intake structure and desk top computer
A cooling air intake structure of a desk-top computer having a housing containing a mother board with a processor, includes one of a passage frame extending from one side to the other side of the...
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7243503 |
Method for controlling operation of air conditioner
A method for controlling an operation of an air conditioner having an inverter compressor and a regular velocity compressor includes: setting an upper limit threshold and a lower limit threshold...
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7228694 |
Cooling control system for an ambient to be cooled, a method of controlling a cooling system, and a cooler
A cooling system for cooling an ambient to be cooled, a cooler and a method of controlling a cooling control system are described. The cooling control system comprises a variable capacity...
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7172018 |
Vehicle air-conditioning system
A vehicle air-conditioning system improves a passenger's sensation of cooling by preventing air blown from a foot opening when a cooling load is low, creating a comfortable temperature distribution...
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7165411 |
Control logic for HVAC heat management
An air conditioner has a controller that controls the operation of a refrigerant circuit that has a compressor, a condenser, an expansion valve or orifice tube, and an evaporator. The condenser...
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7137267 |
Apparatus for variable displacement type compressor
An apparatus for controlling a variable displacement compressor has an information detector and a controller. The information detector detects information about the thermal load on the...
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7134294 |
Method and apparatus for refrigeration system control having electronic evaporator pressure regulators
A method and apparatus for refrigeration system control includes a control system operable to meet cooling demand and control suction pressure for a plurality of refrigeration circuits each...
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7100387 |
Method for controlling a multiple cooling compartment refrigerator, and refrigerator using such method
A method for controlling a refrigerator having a variable speed compressor and at least two compartments (FR, FZ) cooled to respective temperatures and comprising sensor devices (T R , T Z ) for...
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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...
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7096682 |
Refrigeration device and operating method for a refrigeration device
A refrigeration device and method of operation, including at least two separate temperature zones, each having a set temperature range. Both zones are cooled by a separate evaporator with both of...
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7096680 |
Vehicle air conditioner with discharge capacity control of compressor
In a vehicle air conditioner having a variable displacement compressor, a control unit calculates a target cooling temperature of air to be cooled by an evaporator, and controls a discharge...
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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...
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7055338 |
Refrigerator
A refrigerator having a compressor and a control unit for selectively activating and deactivating the compressor in response to the temperature inside the refrigerator. The selective activation and...
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7024873 |
Refrigerator and method for controlling the same
A refrigerator including a control unit for a condenser fan in connection with operation of a compressor if an outdoor temperature sensor is out of order. Since the condenser fan is driven in...
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6990820 |
Method for controlling operation of refrigerator
Method for controlling operation of a refrigerator including the steps of turning on a compressor when a temperature of a food storage chamber reaches to an upper limit of upper/lower temperature...
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6978629 |
Vehicle air conditioner
In a vehicle air conditioner, a controller calculates a first target post-evaporator temperature for defogging a windshield based on a detection humidity of a humidity sensor, and calculates a...
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6976368 |
Method and apparatus for controlling refrigeration
A thermal sensor ( 20 ) located in the centre of a food simulant composition ( 24 ) linked to a remote measuring indicating and/or regulating device ( 28 ). The temperature of the food simulant...
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6955060 |
Air conditioner with control of compressor
In an air conditioner, a target compressor rotation speed is determined based on a target air temperature, which represents an air conditioning load, when an electric compressor is started from a...
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6945061 |
Control unit for variable displacement compressors
A control unit for variable displacement compressors is used for two independent air conditioning cycles, wherein two compressors 1, 11 driven by a common external drive source 8 include...
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6938433 |
Cooling system with evaporators distributed in series
A system and method for cooling a room configured to house a plurality of computer systems. A plurality of evaporator units are arranged in series and are configured to receive air from the room...
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6931872 |
Operation control device for cooling apparatus
An electric motor 25 for driving a compressor 21 that composes a refrigerating cycle is speed-controlled by an inverter circuit 31 . When an inside temperature Tx detected by an inside...
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6892550 |
Electric compression device
An electric compression device has a motor section and a compressor section contained in a housing, an inverter attached to the outer surface of the housing, and a temperature measurement device...
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6886353 |
Cooling system
A system and method for cooling a room configured to house a plurality of computer systems. A heat exchanger unit is configured to receive air from the room and to deliver air to the room. The heat...
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6883603 |
Method for controlling operation of refrigerator with two evaporators
A method for controlling operation of a refrigerator having two evaporators is provided which allows food to be effectively stored in refrigerating and freezing chambers of the refrigerator. A...
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6874574 |
Energy efficient control method for a manually regulated vehicle heating and air conditioning system
An improved, more efficient method of operation for a vehicle heating and air conditioning system electrically positions a temperature control actuator in accordance with a first temperature...
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6868686 |
Refrigeration cycle apparatus
A refrigeration cycle apparatus having a linear compressor is provided with a volume circulation rate instruction unit for obtaining a volume circulation rate Vco of a refrigerant in accordance...
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6868682 |
Agent based control method and system for energy management
Controlling the temperature in a data center includes receiving sensory data corresponding to a temperature from a subsystem in a data center, processing the sensory data by a first agent in a...
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6854659 |
Interactive sensors for environmental control
A system for cooling heat generating objects arranged in a room. The system adapts in real time to changing cooling demands of the objects. Remote sensors mounted in proximity to the heat...
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6845628 |
Method and apparatus for temperature control in a refrigeration device
A temperature control device including a temperature sensor which senses a temperature at a specified location within the refrigeration apparatus. The temperature control device has first flow...
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6843066 |
Air conditioning system and method for controlling the same
Disclosed are an air conditioning system, in which the total operating capacity of compressors is variably controlled in accordance with a cooling or heating load in a room, and a method for...
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6829903 |
Air conditioner and method for operating air conditioner in cooling mode
Disclosed are an air conditioner, which reduces an electric power consumption rate and rapidly copes with the requirements of a user, and a method for operating the air conditioner in a cooling...
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6807819 |
Vapor compression refrigerant cycle
In a vapor compression refrigerant cycle for an air conditioner, as a refrigerant pressure at an operation starting time of a compressor increases, a starting target rotational speed of the...
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6786058 |
Control device of simple construction for a household electrical appliance
The present invention relates to a control device for a household electrical appliance. The control device has an interface configured to enable a user to set or modify parameters of one or more...
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6786056 |
Cooling system with evaporators distributed in parallel
A system and method for cooling a room configured to house a plurality of computer systems. A plurality of evaporator units are arranged in parallel and are configured to receive air from the room...
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6782706 |
Refrigerator—electronics architecture
A control system for a refrigeration system having a refrigeration compartment and a quick chill/thaw pan. A main controller board, electrically connected to a temperature adjustment board and a...
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6775995 |
Condensing unit performance simulator and method
A method of determining thermal performance of a condenser and a condensing unit within a cooling system includes selecting the condenser and the condensing unit from a condensing unit database. A...
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6755033 |
Hybrid compressor apparatus and method of controlling the same
A hybrid compressor apparatus for a refrigerant cycle is mounted on a vehicle having an engine that stops in accordance with driving conditions of the vehicle. The apparatus includes an electrical...
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