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| Number | Title | Issue Date |
| 8096139 | Refrigerant system with variable speed drive A refrigerant system (10, 100, 200) is provided with a power control system (30, 130, 230). The power control system adjusts the speed of the motors driving the refrigerant system components such as a compressor, a fan or a pump via a variable speed de... | 01/17/2012 |
| 7836713 | Speed control of multiple components in refrigerant systems Variable speed drives are utilized in refrigerant systems to operate motors of the system components at varying speeds, typically for the purposes of capacity adjustment, efficiency enhancement, reliability improvement or power consumption limitation. However, varia... | 11/23/2010 |
| 7726141 | Refrigerator, and method for controlling operation of the same A refrigerator is provided which can individually cool a freezing chamber and a refrigerating chamber by dividing a heat exchange region of an evaporator into a freezing chamber side region and a refrigerating chamber side region, forming individual circulation pass... | 06/01/2010 |
| 7703293 | Refrigerator and operating method thereof A refrigerator comprises a main cabinet formed with a storage compartment, a partition which partitions the storage compartment into a first storage compartment, a second storage compartment, a multipurpose compartment; a first evaporator provided to the main cabine... | 04/27/2010 |
| 7530234 | Method for air-conditioning a vehicle interior dependent on incident sunshine A method for the air conditioning of a vehicle interior as a function of incident solar radiation. In a vehicle with, for example, a four-zone air conditioning system, the incident solar radiation is detected by means of sensor elements assigned to the various air c... | 05/12/2009 |
| 7513125 | Method for controlling air conditioner A method for controlling a multi-unit air conditioner is disclosed which is capable of preventing frost from being formed on the outer surface of a refrigerant line. In order to control an air conditioner including an outdoor unit, a plurality of indoor units corres... | 04/07/2009 |
| 7406835 | Cooling system and method for cooling a heat producing system A cooling system for cooling a plurality of heat producing systems includes a heat exchanger having a plurality of cooling zones, each of which has a respective inlet and outlet for facilitating flow of a respective temperature control fluid therethrough. Each of th... | 08/05/2008 |
| 7357150 | Safety shut-off device A safety shut-off device for sections of fluid circuits, which in case of damage or the like, have to shut off from each other on safety considerations. The safety shut-off device includes at least two valves connected to each other via a control chamber. A first pr... | 04/15/2008 |
| 7294052 | Control for dual stepper motors In an air handling unit for discharging a flow of air into the surrounding ambient, having a series of horizontal louvers and a series of vertical louvers mounted in the discharge flow. A first multi-phase stepper motor is arranged to step the horizontal louvers to ... | 11/13/2007 |
| 7290400 | Stationary vehicle air conditioning system and method The invention pertains to a stationary vehicle air conditioning system with a refrigerant circuit, in which a compressor circulates refrigerant through a refrigerant circuit including at least one condenser. The one compressor may be powered by the vehicle's mechani... | 11/06/2007 |
| 7269971 | Electrohydrodynamic evaporator device An electrohydrodynamic evaporator device (EHD) has an EHD electrode. An electric field is generated upon a fluid of low conductivity inside the evaporator device and an enhanced thermal transport effect is then achieved since a thermal boundary layer near a thermal ... | 09/18/2007 |
| 7263849 | Refrigerating system for refrigerator A refrigerating system for a refrigerator is disclosed. The refrigerator includes a compressor that compresses refrigerant, a condenser connected to the compressor that condenses compressed refrigerant, an expansion valve connected to the condenser that expands cond... | 09/04/2007 |
| 7210601 | Variable flow water dispenser for refrigerator freezers A variable flow rate water dispenser mounted on a refrigerator door is provided that can dispense water at user selected flow rates. The water dispenser includes a nozzle for dispensing water from a dispenser housing on a refrigerator door and a user adjustable flow... | 05/01/2007 |
| 7208187 | Climate control for the transport and storage of perishables Method for the control of a controlled atmosphere for the storage of plant products in at least one storage- or transport space, where a) the concentration of at least one trace gas that is produced by the plant products and has a ... | 04/24/2007 |
| 7191611 | Vehicular air conditioning system A vehicular air conditioning system of the present invention comprises an air conditioning unit which forms an air flow, a first vent 8 through which the air flow formed by the air conditioning unit is blown out toward a passenger, a second vent through which... | 03/20/2007 |
| 7188779 | Zone climate control A zone climate control system and method of its operation. A zone can be a single room. A method for determining which zones' vents are to be closed, and which are to be opened, in performing heating or cooling, circulation to heat or cool a zone by mixing its air w... | 03/13/2007 |
| 7188668 | Vehicle air-conditioner The vehicle air-conditioner includes a noncontact detector configured to detect skin temperatures at specific locations on a face of a passenger. The vehicle air-conditioner includes a calculator configured to calculate an average temperature on the face of the pass... | 03/13/2007 |
| 7185503 | Conditioning system for a manufacturing machine, in particular a machine tool In a conditioning system for a manufacturing machine, in particular a machine tool, a machine tool framework is arranged inside a sealed casing. Ducts are arranged at machine tool regions to be thermally conditioned. The ducts comprise air flow outlets and are coupl... | 03/06/2007 |
| 7176413 | Method and system for controlling one or more shape mercury actuators A method and a system for controlling a plurality of shape-memory actuators, for instance installed on board a motor vehicle, control the electric supply current of each shape-memory elements as a function of one or more parameters referring to environmental conditi... | 02/13/2007 |
| 7167377 | Circuit-constituting unit and method of producing the same A circuit-constituting unit forming a distribution circuit or the like in a vehicle. The circuit-constituting unit includes a plurality of bus bars for constituting a power circuit; a semiconductor switching device provided in the power circuit; and a control circui... | 01/23/2007 |
| 7159409 | Method and apparatus for controlling the load placed on a compressor A method of operating a vapor compression system, the vapor compression system defining a closed fluid circuit in which a refrigerant is circulated and having operably disposed therein, in serial order, a compressor, a high pressure heat exchanger, an expansion devi... | 01/09/2007 |
| 7131284 | Automatic defrost controller including air damper control A damper apparatus for controlling airflow between compartments in a two compartment refrigerator having a door includes a controller for controlling opening and closing of a damper; and a door sensor connected to the controller for detecting when the door is open. ... | 11/07/2006 |
| 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 the evaporators arranged in a common coolant circuit having operationa... | 08/29/2006 |
| 7089751 | Automatic fresh air exchange system A system and method for automatically providing a fresh air exchange to a cargo unit is disclosed. The system includes a single gas sensor, preferably a carbon dioxide sensor, for providing an input to a controller which derives the carbon dioxide and oxygen levels ... | 08/15/2006 |
| 7062936 | Clear ice making refrigerator A compact refrigerator has a split cabinet defining insulated refrigerator and clear ice maker sections. Its refrigeration system includes one external compressor and condenser and two evaporators, one for each section. The condenser is coupled to the inlet of the i... | 06/20/2006 |
| 7040105 | Air conditioner and method of controlling air conditioner An air conditioner is provided that can reduce the occurrence of situations in which the comfort level of an occupant of a room is degraded. The air conditioner is capable of running in cooling mode and/or dehumidifying mode and is provided with an air delivery unit... | 05/09/2006 |
| 7032400 | Refrigeration unit having a linear compressor A refrigeration merchandiser including at least one surface at least partially defining an environmental space adapted to accommodate a commodity. The merchandiser includes a linear compressor, a condenser, an expansion device, and an evaporator. The linear compress... | 04/25/2006 |
| 7028492 | Hybrid dehumidication system A hybrid dehumidification system includes a compressor, a condenser, an expansion device and an evaporator connected for flow of working fluid through a fluid circuit; a reheat coil positioned relative to the evaporator for heating at least a portion of a stream of ... | 04/18/2006 |
| 7007490 | Refrigerator and control method thereof A refrigerator, in which air blast fans in storage chambers are controlled so as to reduce a power consumption rate, and a control method of the refrigerator. The control method includes the steps of (a) determining whether or not a plurality of air blast devices, r... | 03/07/2006 |
| 6997011 | Sliding rail for a wire-tube evaporator, evaporator assembly, and refrigeration unit with the evaporator assembly A sliding rail for a wire-tube evaporator has an elongated rail body to be mounted on the evaporator and to protect the latter against abrasion caused by a frozen product container that slides above or on the evaporator. The sliding rail includes at least a tubular ... | 02/14/2006 |
| 6996997 | Pre-trip diagnostic methods for a temperature control unit Methods of diagnosing a temperature control unit and methods of performing a diagnostic check on a temperature control unit. The methods generally include monitoring at least one function of the temperature control unit, storing information relating to the at least ... | 02/14/2006 |
| 6988670 | Heating/ventilating/air conditioning systems for vehicles An HVAC Integrated electronic Module (HIM) (41) for controlling airflow through an HVAC module (12), the HVAC module including a variable speed blower motor (18), a plurality of airflow doors (26–28) for controlling air direction and ho... | 01/24/2006 |
| 6986260 | Electrical fan system for vehicle An electric fan system has a first electric blower 10, which utilizes a brushless motor, and a second electric blower, which utilizes a brushed motor, for distributing the cooling air to the radiator and the condenser. The system has an electronic engine cont... | 01/17/2006 |
| 6978856 | Electrical apparatus, cooling system therefor, and electric vehicle An inverter apparatus includes a liquid path in which cooling water flows, and in which the cooling water performs cooling at a cooling part located directly underneath the power circuit part of the inverter apparatus. The liquid path includes a first partial struct... | 12/27/2005 |
| 6968708 | Refrigeration system having variable speed fan A transcritical refrigeration system includes a compressor, a gas cooler, an expansion device, and an evaporator. Refrigerant is circulated though the closed circuit system. Preferably, carbon dioxide is used as the refrigerant. A fan moves outdoor air that exchange... | 11/29/2005 |
| 6959558 | Systems and methods for head pressure control The present invention relates to systems and methods for controlling head pressure in a vapor compression system, e.g. in a precision air conditioning system. One embodiment of the invention provides a method for regulating working fluid flow in a vapor compression ... | 11/01/2005 |
| 6945867 | Movable grating control A grating assembly drive means is connected to control the movement of the movable grating between OPEN and CLOSED positions relative to a fixed grating. The drive means moves the movable grating through yieldable connection when moving toward CLOSED position, where... | 09/20/2005 |
| 6925828 | Device for cooling and electrical appliance A cooling device for an electric machine with thermal zones having interactions with one another is proposed, each of the thermal zones containing a heat source and a temperature sensor, and at least one cooling means, a controlling element connected to the temperat... | 08/09/2005 |
| 6918543 | Heating system for a vehicle A heating system for a vehicle comprises a heating air fan for producing a heating air flow to be introduced into a vehicle interior, a heating device with a heat exchanger arrangement for heating the heating air flow delivered by the heating air fan, a vehicle inte... | 07/19/2005 |
| 6912859 | Method and apparatus for using a main air compressor to supplement a chill water system A method and an apparatus for providing make-up water for a chilled water system. A first water tower for cooling water is provided. Condensate water from a condensate water source is extracted. Make-up water for the first water tower is provided using the condensat... | 07/05/2005 |