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Refrigeration > With Indicator Or Tester > Condition Sensing Condition SensingCondition Sensing 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.10/18/07 - 20070240434 - Cooling system testing apparatus and methods This invention describes apparatus for and methods of testing cooling systems. The apparatus and method can be used for, among other things, pressurizing the cooling system either to a positive pressure or to a negative pressure, and for conducting temperature tests. ... 10/11/07 - 20070234746 - Methods for detecting and responding to freezing coils in hvac systems A method to detect and respond to a coil condition in an HVAC system. The method includes calculating an initial airflow restriction value and a current airflow restriction value, which are compared. If the current airflow restriction value is greater than a first sum including the initial airflow restriction value ... 09/20/07 - 20070214812 - Refrigeration system with fiber optic sensing A refrigeration case monitoring system. In one embodiment, the refrigeration case monitoring system includes a first fiber optic cable, a second fiber optic cable, and a control system having a first sensing channel and a second sensing channel. The first fiber optic cable transmits a signal that is indicative of ... 09/06/07 - 20070204635 - Air conditioning apparatus By studying or storing refrigerating cycle characteristics of an air conditioning apparatus at the normal time and comparing them with refrigerating cycle characteristics acquired from the air conditioning apparatus at the time of operation, it becomes possible to exactly and accurately diagnose normality or abnormality of the air conditioning apparatus ... 08/16/07 - 20070186568 - Refrigeration systems having diagnostic devices A refrigeration system is provided that includes a low voltage control circuit, a high voltage control circuit, a refrigeration system component, a contactor, a plurality of detection points, and a diagnostic device. The contactor is controlled by the low voltage control circuit to apply supply voltage from the high voltage ... 07/12/07 - 20070157640 - Temperature guard system for a refrigerator A refrigerator includes a controller for regulating temperatures established in a fresh food compartment and a freezer compartment of the refrigerator. The controller is selectively operable in a temperature guard mode providing a warm temperature alarm setting function and a power interrupt setting function. When the warm temperature alarm is ... 07/12/07 - 20070157639 - Hvac system analysis tool A tool for the analysis of heating, ventilation and air conditioning (HVAC) systems, methods for performing various analyses of an HVAC system with the tool, and a computer executable program used by the tool to perform the analyses are disclosed. The tool includes a processing machine, a database, a memory ... 06/21/07 - 20070137224 - Automated condensing unit test apparatus A test module is connectable to the suction line of a condensing unit charged with refrigerant, and also electrically connectable to the unit, and is useable to automatically test for proper operation of the unit without having to connect an external test coil thereto or place pressurized nitrogen therein. After ... 04/26/07 - 20070089440 - Monitoring compressor performance in a refrigeration system A method for monitoring compressor performance in a refrigeration system includes calculating an isentropic efficiency of a compressor of the refrigeration system, averaging isentropic efficiency over a predetermined period, comparing the average to an efficiency threshold, and detecting a compressor malfunction based on the comparison. The method may be executed ... 04/26/07 - 20070089439 - Monitoring a condenser in a refrigeration system A method for monitoring a condenser in a refrigeration system includes calculating a thermal efficiency of the condenser based on operation of the condenser and averaging the thermal efficiency over a predetermined period. Further, the method comprises comparing the average to an efficiency threshold and generating a notification based on ... 04/26/07 - 20070089438 - Monitoring refrigerant in a refrigeration system A method for monitoring refrigerant in a refrigeration system includes calculating a saturation temperature of refrigerant in a refrigeration system based on at least one of a discharge pressure and a discharge temperature of the refrigeration system; calculating an expected refrigerant level based on the saturation temperature; comparing the refrigerant ... 04/26/07 - 20070089437 - Proofing a refrigeration system operating state A method of proofing a refrigeration system operating state includes monitoring a change in operating state of a refrigeration system component, determining an expected operating parameter of the refrigeration system component as a function of the change, and detecting an actual operating parameter of the refrigeration system component after the ... 04/26/07 - 20070089436 - Monitoring refrigerant in a refrigeration system A method for monitoring refrigerant in a refrigeration system includes calculating a return gas superheat of a refrigeration system and averaging the return gas superheat over a predetermined period. The method also comprises comparing the average to a superheat threshold and detecting at least one of a flood back condition ... 04/26/07 - 20070089435 - Predicting maintenance in a refrigeration system A method for predicting maintenance in a refrigeration system includes counting occurrences of a compressor operating event and calculating a cumulative total of the compressor operating events. The method also comprises comparing the cumulative total with an operating threshold and estimating a time period until the cumulative total exceeds the ... 04/26/07 - 20070089434 - Monitoring refrigerant in a refrigeration system A method for monitoring refrigerant in a refrigeration system includes sensing, a refrigerant pressure of a refrigeration system, averaging the refrigerant pressure over a time period, determining an expected pressure based on said time period, comparing the average to the expected pressure, and determining a system condition based on said ... 03/22/07 - 20070062206 - System and method for food safety inspection A system and a method for monitoring and inspecting food safety is disclosed. The system adopts insert and use concept that only requires an initial push on a button to begin its function. The system provides visual alert for different conditions if food products are in unsafe status. The system ... 03/15/07 - 20070056298 - Automated fault detection system for local monitoring of residential and commercial air conditioning systems An electronic monitoring system is provided to monitor for and sense faults in a residential or commercial air conditioning system that uses a chemical refrigerant. By monitoring the discharge pressure variable, a determination may be made concerning the condition of the air conditioning system and alert the home owner or ... 02/22/07 - 20070039334 - Avatar refrigerator and control method thereof An object of the present invention is to provide a refrigerator of a new concept, which improves a user interface convenience for providing a variety of contents to the user other than the long time storage function of the related art refrigerator, and enables the user to make easy contact ... 02/22/07 - 20070039333 - Avatar kimchi refrigerator The present invention discloses a Kimchi refrigerator for storing and fermenting foods such as Kimchi or soy and bean paste at a low temperature. The Kimchi refrigerator displays a set special mode with a corresponding avatar, or displays various information of the special function of the set special mode such ... 10/26/06 - 20060236704 - Device for the diagnosis of a central unit of an air conditioning system of a vehicle A device (1) for the diagnosis of a central unit of an air conditioning system of a vehicle comprises a microprocessor (6) for processing information, a connector (2) for transmitting information from the central unit to said microprocessor (6) and vice versa, a memory (8) in which is located a ... 10/19/06 - 20060230769 - Superconducting magnet device-monitoring system, method of monitoring superconducting magnet device and mri device A superconducting magnet device-monitoring system includes detecting unit, remaining amount estimating unit, and output unit. The detecting unit detects a remaining amount of liquid helium, in which a superconducting coil is immersed stored in a liquid helium container of a superconducting magnet device. The remaining amount estimating unit calculates an ... 09/21/06 - 20060207268 - System and method for increasing the efficiency of a thermal management profile A system and method for increasing the efficiency of a thermal management profile includes a central repository. The central repository is for receiving data for power consumption and location from equipment, combining the data with a current temperature near the equipment, and adjusting the current temperature based on the combined ... 09/14/06 - 20060201168 - Method and apparatus for monitoring a calibrated condenser unit in a refrigerant-cycle system A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 09/07/06 - 20060196197 - Intelligent thermostat system for load monitoring a refrigerant-cycle apparatus A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 09/07/06 - 20060196196 - Method and apparatus for airflow monitoring refrigerant-cycle systems A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 07/27/06 - 20060162351 - Vehicle air-conditioning unit with an electronic control device The invention proposes an air conditioning installation having both an air conditioning apparatus and an electronic printed circuit. The installation also includes measuring means which are adapted to transmit values to the electronic circuit for estimation of a first value relating to the temperature (Tin) of the liquid at the ... 07/06/06 - 20060144059 - Method and control for determining low refrigerant charge A refrigerant system is provided with a method and a control programmed to perform the method, in which a low charge of refrigerant is identified. The mass flow of refrigerant through the system is calculated utilizing at least two different methods. The two calculated mass flow rates are compared, and ... 07/06/06 - 20060144058 - Refrigerating device A refrigeration appliance including a housing and a refrigerated inner area closable by a door. A carrier module in the housing including a control circuit the refrigerating capacity of the inner area according to a temperature measuring signal from the inner area. The carrier module also includes at least one ... 06/15/06 - 20060123808 - Apparatus and method for monitoring state information in trial run mode of multi-airconditioner An apparatus and method for monitoring state information in a trial run mode of a multi-airconditioning system in which a plurality of indoor units are controlled by only one outdoor unit is disclosed. The apparatus and method connects a dedicated controller to the outdoor unit in a trial run mode ... 06/15/06 - 20060123807 - Apparatus and method for monitoring and displaying power usage A method and system to monitor and determine energy consumption and energy efficiency of devices that use electrical and/or gas power is described. In one embodiment, a power monitoring system is configured to monitor electrical and/or gas power consumption of devices such as refrigerators, air-conditioners, washers, dryers, hot tubs, etc. ... 06/15/06 - 20060123806 - Refrigerator and system of refrigerators The refrigerator and the system are applicable in hotels and chains of hotels. The refrigerator has a high degree of intelligence and is convenience for servicing. The system enhances the efficiency of servicing numerous refrigerators in one or several hotels. The refrigerator R comprises a conventional microprocessor system 1, which ... 06/08/06 - 20060117766 - Model-based alarming A method includes calculating an energy consumption model for at least one component of a building system, accessing actual weather data, applying the actual weather data to the energy consumption model, and determining an expected energy consumption value for the at least one component of the building system based on ... 05/25/06 - 20060107670 - Demand control ventilation sensor failure Demand ventilation protocols can address the issue of sensor failure while still providing desirable levels of energy conservation. An occupancy indicator such as a sensor can be monitored. If the sensor reading is determined to be incorrect, unexpected or otherwise erroneous, the ventilation system can provide an amount of fresh ... 05/04/06 - 20060090484 - Hvac monitor and superheat calculator system The present invention relates to a monitoring system for connection to an air conditioning system. The monitoring system includes a primary monitor for sensing the suction temperature and suction pressure of the air conditioning system along with the air conditioning unit temperature. In addition, the monitoring system includes a remote ... 04/27/06 - 20060086105 - System and method for detecting clogged state of pipe of heat pump type multi-air conditioner A method for detecting a clogged state of a pipe of a heat pump type multi-air conditioner includes: detecting a temperature of a pipe of an arbitrary indoor heat exchanger among a plurality of indoor heat exchangers; detecting a pressure of a refrigerant sucked into an arbitrary outdoor unit among ... 04/27/06 - 20060086104 - System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof A system for detecting a mis-connected state between communication lines for a multi-type air conditioner and a method thereof. The system comprises an indoor unit pipe temperature detection unit for detecting a temperature of an indoor unit pipe, and a microprocessor for controlling an opening of an electronic expansion valve ... 04/20/06 - 20060080978 - Compressor diagnostic system A system and method for diagnosing and protecting a compressor includes a sensor, logic circuitry, a motor protector and an intelligent device. The logic circuitry is associated with the sensor and the motor protector and operable to determine a trip frequency of the motor protector and identify a specific fault ... 04/20/06 - 20060080977 - Torque calculation apparatus and torque calculation method of variable capacitance compressor A variable capacitance compressor is provided in a refrigeration cycle of a vehicular air conditioning system. The variable capacitance compressor controls discharge capacity of refrigerant by an external control pulse signal, and can substantially estimate compressor suction side pressure by the external control pulse signal and compressor discharge side pressure. ... 04/20/06 - 20060080976 - Method for the estimation of the power consumed by the compressor of a refrigerant circuit in a motor vehicle The invention relates to a refrigerant system for a motor vehicle comprising a compressor, a condenser and an evaporator. A pressure sensor measures the discharge pressure at the outlet of the compressor, and a temperature sensor measures the ambient temperature at the condenser. Based on the measured values of pressure ... 03/23/06 - 20060059926 - Two-zone fuzzy logic liquid level control A level control algorithm for an HVAC refrigeration system is provided. The control algorithm utilizes a fuzzy logic methodology to automatically adjust a flow of refrigerant in the system to maintain a desired liquid level in the condenser. The fuzzy logic methodology incorporates a plurality of fuzzy logic control algorithms ... 03/23/06 - 20060059925 - Process for refrigerant charge level detection using a neural net The invention is a process for determining the charge level of a vapor cycle environmental control system, having a condenser, evaporator, and an expansion valve, comprising the steps of providing a neural network having four input neurons, two hidden neurons and three output neurons; determining the number of degrees below ... 03/23/06 - 20060059924 - Process for refrigerant charge level detection using a neural net having one output neuron The invention is a process for determining the charge level of a vapor cycle environmental control system, having a condenser, evaporator, and an expansion valve, comprising the steps of providing a neural network having four input neurons, two hidden neurons and one output neurons; determining the number of degrees below ... 03/02/06 - 20060042277 - Fault diagnostics and prognostics based on distance fault classifiers The present invention is directed to a mathematical approach to detect faults by reconciling known data driven techniques with a physical understanding of the HVAC system and providing a direct linkage between model parameters and physical system quantities to arrive at classification rules that are easy to interpret, calibrate and ... 03/02/06 - 20060042276 - System and method for detecting decreased performance in a refrigeration system Systems and methods are provided for detecting performance degradation in a refrigeration system. Specifically, the present invention provides systems and methods for detecting, at a very early stage, a low refrigerant charge and degradation in condenser performance of a refrigeration system. ... 02/23/06 - 20060037331 - Liquid cooling system A liquid cooling system having cooling units individually assigned to electronic component groups housed in a rack or a switchgear cabinet, which are to be cooled, and having a monitoring and control arrangement for monitoring a cooling temperature. Effective cooling and temperature monitoring is obtained because the cooling units are ... 02/16/06 - 20060032248 - Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 02/16/06 - 20060032247 - Method and apparatus for monitoring a condenser unit in a refrigerant-cycle system A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 02/16/06 - 20060032246 - Intelligent thermostat system for monitoring a refrigerant-cycle apparatus A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 02/16/06 - 20060032245 - Method and apparatus for monitoring refrigerant-cycle systems A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a ... 02/09/06 - 20060026973 - Automated condensing unit test apparatus and associated methods A test module is connectable to the suction line of a condensing unit charged with refrigerant, and also electrically connectable to the unit, and is useable to automatically test for proper operation of the unit without having to connect an external test coil thereto or place pressurized nitrogen therein. After ... 02/02/06 - 20060021363 - Vehicle temperature regulation control unit A control unit including a switch for regulating the temperature of a passenger compartment and/or the temperature of a vehicle seat. The switch is of a unit type with a control member, a switch member, a light-emitting member, and an indicator member housed in a single case, and can be ... 02/02/06 - 20060021362 - Charge loss detection and prognostics for multi-modular split systems A method for detecting and predicting refrigerant level includes the steps of determining an estimated value for a parameter indicative of refrigerant level and comparing that estimated value to an actual value. The difference between the actual and estimated value provides a refrigerant charge indicator value. The charge indicator value ... 01/26/06 - 20060016201 - Actuator alarm for critical environments or applications The air damper or valve actuator system with an alarm includes a motor coupled to the air damper or valve, an electrical power sensor for sensing an electrical power characteristic of the motor during the motor's motive operation of the air damper or valve and a threshold sensor. The threshold ... 12/15/05 - 20050274131 - Air conditioner An air conditioner is disclosed. The present invention includes an input part to which a control signal for an operation of the air conditioner is inputted, a display part having at least one sub-display part displaying an operational state of the air conditioner, and a microcomputer controlling the air conditioner ... 12/08/05 - 20050268625 - Method of controlling a carbon dioxide heat pump water heating system A method of detecting and diagnosing operating conditions for a heat pump water heating system includes the steps of monitoring system operating conditions and comparing actual operating conditions to predicted operating conditions. The predicted operating conditions are based on expected pressures and temperatures given current system inputs. A difference between ... 12/01/05 - 20050262856 - Refrigeration system and method of operating the same A refrigeration system including a compressor, condenser, valve, and refrigeration branch, all of which is in fluid communication. The refrigeration branch includes an evaporator coil. The refrigeration system further includes a case adapted to be cooled by the evaporator coil, and a system controller operable to control one or more ... 11/17/05 - 20050252220 - Refrigeration system and method of operating the same A refrigeration system including a compressor, condenser, valve, and refrigeration branch, all of which is in fluid communication. The refrigeration branch includes an evaporator coil. The refrigeration system further includes a case adapted to be cooled by the evaporator coil, and a system controller operable to control one or more ... 11/03/05 - 20050241323 - Energy analyzer for a refrigeration system An energy analyzer for a refrigeration system including a refrigeration circuit having a compressor, a condenser and an evaporator, and a variable speed drive. A device contains an equation correlating refrigeration system operating performance using a variable speed drive to that of a constant speed drive without requiring the constant ... 10/20/05 - 20050229611 - Freezer alarm system and apparatus for refrigeration units A freezer alarm system and apparatus for monitoring the temperature in the freezer compartment of a refrigeration unit includes a housing mountable on a wall adjacent the refrigeration unit for plugging into a wall outlet. A capillary tube extends from the housing and terminates with a temperature sensor that is ... 10/13/05 - 20050223720 - Energy analyzer for a refrigeration system An energy analyzer for a refrigeration system includes a refrigeration circuit having a compressor, a condenser and an evaporator, and a first drive type. A memory device contains an equation correlating refrigeration system operating performance using a first drive type to that of a second drive type without requiring the ... 10/06/05 - 20050217283 - Method and apparatus for checking a pressure monitoring device of a compression refrigerating plant A pressure monitoring device of a compression refrigerating plant having a compressor, a condenser and an energy discharge device cooperating with the latter, is tested by an automatically proceeding self-test program. In this case, the energy discharge device is at least throttled back and the compressor is operated up to ... 08/18/05 - 20050178130 - Method and apparatus for determining coolant temperature rationality in a motor vehicle Methods, systems and devices for identifying irrational results from an engine coolant temperature (ECT) sensor in a vehicle are described. The vehicle suitably includes a processor in communication with the ECT sensor and an intake air temperature (IAT) sensor. The method includes the steps of receiving an ECT reading from ... 08/11/05 - 20050172647 - Method for detecting changes in a first flux of a heat or cold transport medium in a refrigeration system The invention concerns a method for detecting changes in a first flow of a heating or cooling medium in a refrigeration system whereby the first flow is conveyed through a heat exchanger wherein occurs heat transfer from the first flow to a second flow of a heating or cooling medium. ... 06/23/05 - 20050132726 - Inverter system and vehicle Based on the output value of an outside air temperature detecting means 150 and temperature calculation parameters inputted from outside the inverter system, the temperature calculation circuit 144B of an error detecting section 144 calculates the temperature Tcal where a temperature detecting means below semiconductor device 152 is installed. A ... 06/16/05 - 20050126191 - Diagnosing a loss of refrigerant charge in a refrigerant system A refrigerant system has a controller associated with it that determines an equilibrium pressure when the system is inactive. The controller determines if the equilibrium pressure differs from an expected equilibrium pressure corresponding to a current ambient temperature and the selected refrigerant type. When the difference exceeds a selected threshold, ... 06/16/05 - 20050126190 - Loss of refrigerant charge and expansion valve malfunction detection An actual superheat value in a refrigerant system is compared to an expected superheat level. If the actual superheat valve exceeds a certain predetermined value, this is an indication of refrigerant charge loss or a malfunctioning expansion device. In one example, the superheat valve is determined by comparing a difference ... ### FreshPatents.com Support |