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Refrigeration > Automatic Control > Refrigeration Producer > Of Or By Evaporation Zone Of Or By Evaporation ZoneOf Or By Evaporation Zone 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.07/05/07 - 20070151270 - Refrigerating cycle A refrigeration cycle not generating unpleasant noise when starting or stopping a second evaporator while a first evaporator is operating is provided. The refrigeration cycle of the present invention is characterized by making a differential pressure between an inlet refrigerant pressure and outlet refrigerant pressure of a second evaporator solenoid ... 07/05/07 - 20070151269 - System and method for level control in a flash tank A control algorithm is provided for controlling an economizer circuit in a chiller system. The control algorithm adjusts the position of a feed valve in the economizer circuit in response to measured system operating parameters to maintain a level of liquid refrigerant in a flash tank of the economizer circuit. ... 10/05/06 - 20060218952 - Refrigerating device and refrigerator There are provided a refrigerating device capable of efficiently performing a refrigerant recovering operation even in a case where there are disposed a plurality of heat absorbing units functioning in different temperature zones, and a refrigerator including this refrigerating device. A refrigerating device 30 includes a compressor 1, a radiator ... 03/16/06 - 20060053812 - Control valve for variable displacement compressor To provide a control valve for use in a variable displacement compressor, for fixed flow rate control, which can be constructed compact in size without necessitating pressure sensors for detecting a differential pressure. The control valve comprises a first valve having configuration of a check valve that opens and closes ... 01/12/06 - 20060005556 - Flow rate control valve There is provided a flow rate control valve of a constant flow-rate control type, which is simple in construction. The flow rate control valve is configured, by regarding a evaporator as a restriction passage, to include a constant differential pressure control valve for controlling the differential pressure before and after ... 09/29/05 - 20050210899 - Evaporator pressure regulator control and diagnostics An apparatus for refrigeration system control includes a plurality of circuits, each circuit having at least one refrigeration case and an electronic evaporator pressure regulator in communication with each circuit. Each electronic evaporator pressure regulator controls a temperature of one of the circuits. A sensor in communication with each circuit ... ### FreshPatents.com Support |