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Refrigeration > Automatic Control > Refrigeration Producer > Of Or By Evaporation Zone > Of Expansion Valve Or Variable Restrictor Of Expansion Valve Or Variable RestrictorOf Expansion Valve Or Variable Restrictor 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.01/03/08 - 20080000245 - Air conditioner and control method thereof Disclosed here is an air conditioner and the control method thereof comprising an outdoor unit having an outdoor heat exchanger for the heat exchanging of the outdoor air and refrigerant; at least one indoor unit corresponding to the outdoor unit and having indoor heat exchanger for the heat exchanging of ... 09/27/07 - 20070220911 - Vapor compression system and method for controlling conditions in ambient surroundings A vapor compression system including an evaporator, a compressor, and a condenser interconnected in a closed-loop system and a method of operating such a system. The method includes the conversion of expanded liquid heat transfer fluid from a liquid form to a high quality liquid vapor mixture before delivery to ... 05/24/07 - 20070113568 - Apparatus and method for controlling refrigerant distribution in multi-type air conditioner An operation of a multi-type air conditioner, which includes a refrigerant distributor provided between one outdoor unit and a plurality of indoor units is controlled. A refrigerant supply controller determines indoor temperatures of a plurality of indoor units, decides to operate a compressor on the basis of the determined indoor ... 05/03/07 - 20070095085 - Air-conditioning assembly The invention relates to a motor vehicle air-conditioning assembly provided with a supercritical fluid refrigerant circuit and comprising a pressure relief member (12) defining a cross-section of fluid flow. The assembly comprises an electronic control device (401) for interacting with the fluid refrigerant circuit. The electronic control device includes a ... 03/22/07 - 20070062207 - Heat source apparatus and method of starting the apparatus After a chiller unit is started, an opening command of 10 pulses is output to an electronic expansion valve, and after a predetermined period of time (at the time of starting with unload) elapses, an opening command of 100 to 150 pulses is output to open the electronic expansion valve ... 02/01/07 - 20070022769 - Temperature-type expansion valve A temperature-type expansion valve 1 includes a valve housing 110 having a first passage 121 into which a high pressure refrigerant flows, a second passage 122 through which a low pressure refrigerant flowing to an evaporator 5 flows, and a throttle passage 125 communicating the first passage 121 with the ... 01/25/07 - 20070017239 - Self-regulating temperature control system A self-regulating cooling/heating system employs a variable flow manifold that allows the automatic re-direction of cooling/heating fluid (air, water, phase transition medium) to the areas of the cabinet or enclosure that requires the most cooling/heating. This enables a more efficient use of cooling/heating capability, sending the cooled/heated fluid to areas ... 10/19/06 - 20060230773 - Method for determining optimal coefficient of performance in a transcritical vapor compression system The high side pressure of a vapor compression system is selected to optimize the coefficient of performance by measuring the gas cooler exit temperature with a temperature sensor. For any gas cooler exit temperature, a single optimal high side pressure optimizes the coefficient of performance. The optimal high side pressure ... 09/28/06 - 20060213208 - Valve control system, valve control apparatus and valve control method In a refrigeration cycle system, temperature sensors measure the temperatures Tin and Tout of a refrigerant at the entrance and exit of an evaporator. A control circuit performs PID calculation based on signals from the temperature sensors in order to control a degree of superheat corresponding to the difference between ... 09/07/06 - 20060196201 - Expansion valve To provide an expansion valve capable of enhancing manufacturing efficiency of a body and yield from material, thereby reducing manufacturing costs thereof. According to the expansion valve of the present invention, a body is formed by die casting an aluminum alloy, and hence even when the body has a complicated ... 07/13/06 - 20060150650 - Expansion valve for refrigerating cycle An expansion valve of the invention comprising a temperature-sensing portion arranged in a refrigerant passage leading to an evaporator from a gas cooler or an internal heat exchanger in a vapor compression type refrigerating cycle and varied in internal pressure according to a refrigerant temperature at an outlet side of ... 06/08/06 - 20060117774 - Pressure control valve A pressure control valve to be integrated into a steam-compression type refrigerating cycle includes: a temperature-sensing cylinder for sensing the temperature of refrigerant on the outlet side of the gas cooler; a temperature-sensing pressure responding element provided with a temperature-sensing chamber communicating through a capillary tube with the temperature-sensing cylinder ... 05/25/06 - 20060107673 - Expansion device To provide a low-cost expansion device which is capable of changing a passage cross-sectional area of a restriction passage according to the pressure and temperature of introduced refrigerant, without provision of a high-pressure hermetically sealed space. The expansion device comprises a differential pressure valve for having the valve lift thereof ... 04/27/06 - 20060086116 - Expansion valve and method for its control The invention relates to an expansion valve and a method for controlling an expansion valve, in which the opening and closing movement of the valve-closing element is adjusted as a function of the pressure difference which is present on the high-pressure side in an inlet opening and on the low-pressure ... 03/09/06 - 20060048529 - Refrigerating system for refrigerator Refrigerating system for a refrigerator including a compressor for compressing refrigerant, a condenser connected to the compressor for condensing compressed refrigerant, an expansion valve connected to the condenser for expanding condensed refrigerant, freezing chamber, and refrigerating chamber evaporators connected to the expansion valve for cooing air in a freezing chamber ... 03/09/06 - 20060048528 - Refrigerating system for refrigerator Refrigerating system for a refrigerator including a variable capacity compressor having a varied rate of compressed refrigerant delivery for compressing refrigerant, a condenser for condensing the refrigerant compressed by the variable capacity compressor, a freezing chamber expansion valve for expanding condensed refrigerant, a freezing chamber evaporator for cooling air by ... 03/02/06 - 20060042282 - Control method for operating a refrigeration system A method of controlling a heating cycle of a refrigeration system is provided that includes a refrigerant circuit. The refrigerant circuit includes a compressor having a suction port and an outlet having a discharge port with a hot gas compressor discharge line, a condenser for condensing the refrigerant, an evaporator ... 12/29/05 - 20050284163 - Cooling cycle apparatus and method of controlling linear expansion valve of the same Disclosed herein is a method of controlling a linear expansion valve of a cooling cycle apparatus. The method comprises a first step of calculating a target opening level value according to suction overheat level of compressors to control a linear expansion valve based on the calculated target opening level value, ... 11/10/05 - 20050247072 - Mixed-phase regulator for managing coolant in a refrigerant based high efficiency energy storage and cooling system Disclosed is a method and device to efficiently regulate flow of refrigerant while maintaining a sealed chamber in systems providing stored thermal energy for use during peak electrical demand. A mixed-phase regulator replaces the thermostatic expansion valve used in conventional air-conditioning systems that, along with capillary tubes and orifices, regulates ... 09/15/05 - 20050198979 - Expansion valve and method for controlling it The invention relates to an expansion valve and to a method for controlling an expansion valve, in which the opening and closing movement of the valve-closure member is set as a function of the pressure difference which is present in a feed opening on the high pressure side and in ... ### FreshPatents.com Support |