REGISTER now for FREE 
|
FREE patent keyword monitoring and additional FREE benefits. REGISTER now for FREE
|
|
|
Refrigeration > Automatic Control > Refrigeration Producer > Compressor Or Its Drive Controlled Compressor Or Its Drive ControlledCompressor Or Its Drive Controlled patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/15/07 - 20070261424 - Cooling device and controlling method thereof for reefer container A cooling device and a controlling method thereof for a reefer container are disclosed. The cooling device has a controlling circuit comprising a controller; a compressor relay, a condenser fan relay and an evaporator fan relay connected in parallel; a pressure switch connected to the compressor relay in series; and ... 11/15/07 - 20070261423 - Air conditioner An air conditioner comprises an evaporator for transferring heat from air to a refrigerant gas, a temperature sensor for sensing a temperature associated with the evaporator, a compressor for compressing the refrigerant gas, an electric motor for driving the compressor, and a controller for controlling the speed of the motor, ... 08/09/07 - 20070180841 - System for controlling compressor of cooling system and method for controlling the same Disclosed is a system for controlling a compressor of a cooling system. The system includes: the compressor having a driving shaft that is rotatable clockwise and counterclockwise and operated by a power of a motor outputting different torque characteristics depending on the rotational directions of the driving shaft; a selector ... 07/12/07 - 20070157649 - Method and a control unit for starting a compressor A method and a control unit for starting a compressor (3) in a refrigeration system (1) further comprising a condenser (2) and an evaporator (4). If an attempt to start-up the compressor (3) is unsuccessful a condenser cooling means, e.g. a fan, is started in order to provide cooling for ... 07/05/07 - 20070151272 - Electronic control transformer using dc link voltage In a chiller system, an electronic control transformer is powered by the DC link of a variable speed drive that drives a compressor motor. The electronic control transformer converts the DC voltage to a constant 120 VAC at 60 Hz, for providing power to auxiliary electrical devices associated with the ... 05/24/07 - 20070113569 - Refrigerator and control method of the same The invention provides a refrigerator having a compressor, the refrigerator including: a motor driving the compressor; a motor driver supplying power to the motor; and a controller outputting a control signal corresponding to a second command speed to the motor driver, and outputting a control signal corresponding to a first ... 04/26/07 - 20070089443 - Compressor capacity modulation system and method A compressor system includes a compressor having an inlet, a first conduit fluidly coupled to the inlet, an accumulator fluidly coupled to the inlet by a second conduit, and a first valve disposed in the second conduit that prevents fluid communication between the accumulator and the inlet in a closed ... 03/29/07 - 20070068183 - Intelligent lighting supply The invention is very suitable for supplying power to a lamp (1) positioned inside a refrigeration compartment (2), especially when the system is battery powered. ... 03/29/07 - 20070068182 - Method for controlling a compressor for conveying a pressure medium in a level adjustment system of a motor vehicle In a method for controlling a compressor (2) in a closed level adjustment system, the actual compressor temperature is continuously determined, at least during operation of the compressor, and the compressor (2) is disconnected when it reaches a threshold temperature. Admission pressure and counter-pressure of the compressor are taken into ... 03/29/07 - 20070068181 - Method of controlling compressor for refrigerator and apparatus thereof A method of controlling compressor for refrigerator and apparatus thereof are disclosed to control an operation of the compressor by optimum efficiency by changing freezing capacity of the compressor. The apparatus controls a rotation direction of the compressor installed in the refrigerator and changes the freezing capacity of the compressor ... 02/22/07 - 20070039340 - Controlling method of air conditioning system for vehicles The present invention relates to a controlling method of an air conditioning system for vehicles. The method of the present invention includes the steps of: setting up a target indoor temperature of a vehicle determined by a user; inputting the indoor and outdoor temperature of the vehicle and solar radiation ... 02/01/07 - 20070022770 - Building temperature control system and method A method and system of dynamically controlling a temperature control system that has at least one compressor and is operable in a plurality of stages. The method includes iteratively determining, for each of the plurality of stages, a plurality of intermediate air-related conditions and system operating conditions based on sensed ... 01/25/07 - 20070017240 - Refrigeration system with mechanical subcooling A refrigeration system includes a primary compressor that receives refrigerant from an evaporator and delivers refrigerant to a condenser, a subcooling compressor that delivers refrigerant to the condenser, and a subcooler that receives refrigerant from the condenser. A first refrigerant flow path and a second refrigerant flow path pass through ... 01/18/07 - 20070012056 - Variable capacity compressor control apparatus for vehicle A variable capacity compressor control apparatus includes a variable capacity compressor equipped with a control valve, a valve controller connected to the control valve to determine its opening/closing duty ratio and output a compression-ratio control signal for driving the control valve with the opening/closing duty ratio determined, a flow meter ... 12/28/06 - 20060288718 - Dimension sensor and method for stopping expansion of a tube A dimension sensor is used in conjunction with a tube and includes a body member and at least one detector element. The body member has an inner surface defining an opening sized to receive the tube. The at least one detector element is connected to the body member and has ... 12/21/06 - 20060283198 - Apparatus and method for controlling operation of unitary air conditioner An apparatus and a method for controlling the operation of a unitary air conditioner, which diversify signals to be transmitted using existing connection lines for transmitting signals by adjusting an interval between ON and OFF signals, etc., thereby allowing the unitary air conditioner to be operated in various modes. ... 11/30/06 - 20060266062 - Air conditioner for vehicle An air conditioner for a vehicle includes a refrigeration cycle having a variable capacity compressor, a condenser, an expansion valve, and an evaporator; a duct in which the evaporator is arranged; an air switching unit arranged on an upstream side of the duct and configured to switch outside air and ... 11/30/06 - 20060266061 - Insulated ice compartment for bottom mount refrigerator with temperature control system A refrigerator includes a refrigerator cabinet, a fresh food compartment disposed within the cabinet, a freezer compartment disposed within the cabinet, an ice compartment disposed within the cabinet, and an electronic control system associated with the refrigerator and adapted to monitor and control the fresh food compartment, the freezer compartment ... 11/09/06 - 20060248908 - 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 controls a speed of rotation of the compressor between ... 11/02/06 - 20060242976 - Air conditioner and control system therefor An air conditioner includes: a compressor configured to compress a refrigerant; an outside heat exchanger configured to make the compressed refrigerant radiate heat; a pressure reducing unit configured to reduce the pressure of the heat-radiated refrigerant; an inside heat exchanger configured to vaporize the pressure-reduced refrigerant; a discharge pressure detector ... 09/07/06 - 20060196202 - Method and apparatus 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 ... 08/31/06 - 20060191275 - Multi-air conditioner central control system and power control method thereof Disclosed herein are a multi-air conditioner central control system and a power control method thereof. The central control system comprises a plurality of watt-hour meters for measuring power consumption of a plurality of multi-air conditioners each having an outdoor unit and a plurality of indoor units, to compute power consumption ... 08/24/06 - 20060185376 - Freezer device A refrigeration system comprises a refrigerant circuit (10) in which a compressor (21), an outdoor heat exchanger (24) and an indoor heat exchanger (33) are connected to operate on a refrigeration cycle, and an oil recovery container (40) connected to the suction side of the compressor (21), and carries out ... 08/24/06 - 20060185375 - Air conditioner for vehicle An air conditioner for a vehicle has a variable capacity compressor for compressing a refrigerant and controlling a discharged volume of the refrigerant by a power source for driving a vehicle, and a controller for setting a second target temperature higher by a predetermined temperature than a preset first target ... 08/17/06 - 20060179859 - Motor controlling device, compressor, air conditioner and refrigerator A motor controller (101) according to the invention comprises an inverter circuit (3) for driving a brushless motor (4) and a control unit for controlling the rotational speed of the brushless motor (4) by controlling the phase of the motor current of the brushless motor (4) through the inverter circuit ... 07/20/06 - 20060156749 - Unitary air conditioner and method of controlling variable operation thereof A unitary air conditioner comprises a 1-stage thermostat mounted in a room for generating an air conditioner ON/OFF signal, an indoor unit configured to operate based on a signal from the 1-stage thermostat, and a variable-capacity outdoor unit connected to the 1-stage thermostat and the indoor unit. The variable-capacity outdoor ... 07/20/06 - 20060156748 - Method of preventing rapid on/off of compressor in unitary air conditioner A method of preventing rapid on/off of a compressor in a unitary air conditioner comprises the steps of, when a unitary-capacity operation signal is inputted from a thermostat to start an outdoor unit, and a specific operation stage is continued for more than a predetermined period of time after the ... 07/13/06 - 20060150651 - Inverter device and air conditioning system using inverter device A current sensor for detecting a power supply current is commonly used for detecting a current of a stator winding to detect a rotational position of a magnet rotor, so that a sinusoidal driving is realized without adding two current sensors for detection of a phase current, and also a ... 06/15/06 - 20060123817 - Air conditioner An air conditioner incorporates valve devices mounted in a plurality of indoor units, respectively, for allowing refrigerant discharged from an outdoor heat exchanger to be introduced into one or more indoor units that are in operation. The refrigerant is prevented from being introduced into the other indoor units that are ... 06/08/06 - 20060117775 - 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 whether the vehicle is at idle or is being driven and determining whether or not the A/C ... 05/18/06 - 20060101836 - Very low temperature refrigerator An inverter (22) is provided between a power source (20) and a suction/discharge valve driving motor (14) that controls cycle time of suction and discharge of a refrigerator unit (10). An output frequency of the inverter (22) is controlled in accordance with output of a sensor (24) that detects temperature ... 05/11/06 - 20060096306 - Control method of refrigeration cycle apparatus and refrigeration cycle apparatus using the control method In a refrigeration cycle apparatus having an expansion mechanism, it is an object of the present invention to swiftly generate a pressure difference upstream and downstream of the expansion mechanism of, thereby enhancing the starting performance of the refrigeration cycle apparatus. In a control method of a refrigeration cycle apparatus ... 04/27/06 - 20060086117 - Method of controlling air conditioner for vehicles A vehicle air conditioner is controlled to a target control value that controls a swash-plate control value of a swash-plate variable capacity compressor. The variable control is based on temperature deviation between target evaporator temperature and actual evaporator temperature, to control compressor discharge capacity. A target evaporator temperature is set. ... 03/23/06 - 20060059929 - Refrigeration apparatus A refrigerant circuit (10) of a refrigeration apparatus is filled up with carbon dioxide as a refrigerant. In the refrigerant circuit (10), a first compressor (21) and a second compressor (22) are arranged in parallel. The first compressor (21) is connected to both an expander (23) and a first electric ... 03/09/06 - 20060048530 - Operation control apparatus for compressor and method thereof In an operation control apparatus and a method thereof, the compressor can be protected from overloading through a current control device instead of an OLP (Over Load Protector) and a PTC thermistor (Positive Temperature Coefficient thermistor). The operation control apparatus includes: a stroke estimated unit for estimating a stroke of ... 02/16/06 - 20060032255 - Apparatus for controlling operation of air conditioner An apparatus for controlling operation of an air conditioner having a compressor for compressing refrigerant and a heat exchanger for heat-exchanging refrigerant with ambient air, includes a temperature sensor installed on a passage through which refrigerant passes, for detecting a temperature of refrigerant; and a control unit connected to the ... 02/09/06 - 20060026980 - Apparatus, method and software for use with an air conditioning cycle A turbine for generating power has a rotor chamber, a rotor rotatable about a central axis within the rotor chamber, and at least one nozzle for supplying a fluid from a fluid supply to the rotor to thereby drive the rotor and generate power. The flow of the fluid from ... 12/22/05 - 20050279112 - Electronically-frequency-controlled voltage adjustment device and method for retaining freshness of foods by using the same An electronically-frequency-controlled voltage adjustment device comprises a power supply for providing voltages to an object; a temperature sensor for sensing temperatures of the object; a temperature control unit receiving temperature signals from the temperature sensor and outputting temperature variation signals; a voltage adjustment unit for adjusting output voltages of the ... 12/08/05 - 20050268631 - Apparatus for driving a compressor and a refrigerating air conditioner An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting ... 11/24/05 - 20050257543 - Energy efficient capacity control for an air conditioning system An air conditioning system (10) is provided for cooling a compartment (16) of a truck when the main engine is not running. The system (10) includes a variable speed compressor (20), a variable speed condenser fan (22), a variable speed evaporator blower (24), and a controller (14) configured to optimize ... 11/17/05 - 20050252224 - Method of controlling compressor and controller A compressor is operable to compress refrigerant at a variable operation frequency. According to a method of controlling the compressor, the compressor starts operating, and just after that, the compressor operates at a first frequency for a first period of time. Just after that, the compressor operates at a second ... 11/10/05 - 20050247073 - Driver of compressor and refrigerator An instantaneous current and instantaneous voltage of a three-phase coil of a brushless DC motor are detected, and the internal condition of a compressor is predicted from these detection values. The prediction about the internal condition of the compressor is made in such a way that motor driving torque which ... 09/29/05 - 20050210900 - Air conditioner for vehicle capable of preventing inverter overheating An inverter 6 that drives an electric motor 4 of the electric compressor 3 operates in a protection-against-overheat mode, in which the electric motor is driven at a rotational speed for protection against heat different from a rotational speed specifying value from an air conditioning control unit 20, in order ... 09/22/05 - 20050204761 - Temperature detection device, temperature detection method, and computer-readable computer program product containing temperature detection program Heating value P[W] generated at an IGBT is calculated, and a temperature difference ΔT′j [° C.] between a temperature Tw [° C.] of cooling water circulating in a cooling system and a temperature Tj [° C.] of an IGBT is calculated based on thermal resistance R [° C./W] of the ... 09/22/05 - 20050204760 - Refrigerating apparatus and inverter device A refrigerating apparatus having a refrigerating cycle that comprises a compressor, an electric motor that drives the compressor, and an inverter device that variably controls the operating frequency of the electric motor. The inverter device includes a converter circuit that converts an A.C. voltage from an A.C. power supply into ... 08/25/05 - 20050183434 - Air-conditioning system An air-conditioning system includes a refrigeration cycle and a control unit. The refrigeration cycle includes an electric compressor in which a compression mechanism for drawing a refrigerant therein for compression is integrated with an electric motor for driving the compression mechanism, and a motor drive circuit for driving the motor ... 08/25/05 - 20050183433 - Vehicle air conditioning system A vehicle air conditioning system equipped with a refrigerant circuit comprising an electrically operated compressor is intended to enable simplification of data communication between the inside and outside of a passenger compartment and to enable accurate air conditioning control. In summary, the air conditioning system is equipped with the refrigerant ... 08/18/05 - 20050178135 - Method and apparatus for conserving power consumed by a refrigerated appliance utilizing audio signal detection A refrigerated appliance that dispenses items for use with a power source and includes a cooling system. Power control circuitry is electrically coupled between the power source and components (for example, a compressor and one or more circulating fans of the cooling system) of the appliance. A controller, which is ... 08/18/05 - 20050178134 - Method and installation for controlling at least one cryogenic centrifugal compressor compression line which can be represented in the form of a first parameter (NU) that is representative of the speed of rotation of a compressor, according to a second parameter (X) that is representative of the mass flow of said compressor; regulating the speed of rotation of the downstream compressor according to ... 07/28/05 - 20050160750 - Automatic start/stop sequencing controls for a steam turbine powered chiller unit A control system and method are provided for the automatic startup and shutdown of a steam turbine driven chiller unit. The chiller unit includes an integrated central control panel to control operation of both the steam turbine system and the refrigerant system. The central control panel has a startup control ... 07/28/05 - 20050160749 - Enhanced manual start/stop sequencing controls for a steam turbine powered chiller unit A control system and method for interactive startup and shutdown of a steam turbine driven chiller unit is provided. The chiller unit includes an integrated central control panel to control operation of both the steam turbine system and the refrigerant system. The central control panel has startup control system to ... 07/28/05 - 20050160748 - Integrated adaptive capacity control for a steam turbine powered chiller unit A control system for a steam turbine driven chiller unit is provided. The control system automatically utilizes the full range of the governor, compressor pre-rotation vanes, and hot gas bypass valve capabilities to control the capacity of the chiller and provide anti-surge and override control functions to prevent undesirable operational ... 07/28/05 - 20050160747 - 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 temperature sensor 35 is not less than a predetermined temperature (for example, 5° C. in the case of a refrigerator ... 07/21/05 - 20050155370 - Method for the storage of deep-frozen goods The invention relates to a method for the storage of deep-frozen goods in a freezer having a speed-controlled compressor. In accordance with the invention, the compressor is operated in long-term operation and the temperature is lowered in a low-temperature mode to a temperature which is clearly below −18° C., and ... 07/21/05 - 20050155369 - Air conditioner In an air conditioner provided with a capacity variable compressor unit including an inverter, the capacity of the capacity variable compressor unit is controlled in response to air-conditioning load data including temperature difference between a set temperature and an indoor temperature. An inverter frequency for controlling an operation condition of ... 07/07/05 - 20050144965 - Turbo chiller, compressor therefor, and control method therefor A compressor for a turbo chiller that can stably and efficiently operate in various operating states is provided. An aerodynamic feature map showing a rotating stall line at which rotating stall occurs is provided on a map represented by a flow parameter reflecting the volume flow based on the output ... 06/02/05 - 20050115259 - 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 deactivation of the compressor being carried out at predetermined cut-on and cut-off temperatures. The control unit being adapted to detect how the ... ### FreshPatents.com Support |