Patent application number | Description | Published |
20100269523 | MOUNTING OF PRESSURE RELIEF DEVICES IN A HIGH PRESSURE REFRIGERATION SYSTEM - A plurality of pressure relief devices are disposed within a refrigeration circuit, and each of the pressure relief devices is located within a compartment that fluidly communicates with the ambient air. Each of the pressure relief devices is oriented so that the release of high pressure vapor therefrom is directed to a rear wall of the compartment. Further, a four sided cover is disposed over each of the pressure relief devices so as to partially contain any released vapor and allow it to be discharged in one direction only. | 10-28-2010 |
20100271221 | DETECTION OF CO2 LEAKAGE IN A CONTAINER - A refrigerated container having a refrigeration system using CO | 10-28-2010 |
20110048041 | PRESSURE RELIEF IN HIGH PRESSURE REFRIGERATION SYSTEM | 03-03-2011 |
20110138825 | CARBON DIOXIDE REFRIGERANT VAPOR COMPRESSION SYSTEM - A carbon dioxide refrigerant vapor compression system and method of operating that system are provided. The refrigerant vapor compression system includes a compression device, a flash tank receiver disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger, and a compressor unload circuit including a refrigerant line establishing refrigerant flow communication between an intermediate pressure stage of the compression device and the refrigerant circuit at a location downstream of the refrigerant heat absorption heat exchanger and upstream of a suction inlet to the compression device, and a unload circuit flow control device disposed in said unload circuit refrigerant line. In response to at least one system operating parameter sensed by at least one sensor, the controller selectively positions the unload flow control device to maintain the refrigerant vapor compression system operating below a preselected high pressure limit. | 06-16-2011 |
20120145248 | METHOD AND APPARATUS TO INDICATE ACTIVATION OF PRESSURE RELIEF DEVICE - An activation indicator for a refrigeration system pressure relief valve is presented. In one embodiment, the indicator comprises a covering that covers an outlet passage of the pressure relief valve. The covering is at least partially displaceable by refrigerant as it exits the refrigeration system through the pressure relief valve. In another embodiment, sensors outputting a signal transmit an altered signal when the relief device releases refrigerant. A notification device is activated to indicate that the pressure relief device has activated. | 06-14-2012 |
20120174605 | LIQUID-COOLED HEAT EXCHANGER IN A VAPOR COMPRESSION REFRIGERATION SYSTEM - A refrigerant vapor compression system includes a compressor having a suction port and a discharge port, an air-cooled heat exchanger operatively coupled to the discharge port, a liquid-cooled heat exchanger operatively coupled to the air-cooled heat exchanger, a coolant pump operatively coupled to a liquid coolant inlet conduit of the liquid-cooled heat exchanger, an evaporator heat exchanger unit operatively coupled to the liquid-cooled heat exchanger and the suction port, a coolant pump operatively coupled to the liquid coolant inlet conduit for pumping a liquid coolant, and a controller operatively associated with the liquid coolant inlet conduit for controlling the flow of liquid coolant into the liquid-cooled heat exchanger. In one embodiment, the liquid-cooled heat exchanger comprises a low-profile enclosure defining an interior volume. The enclosure has a liquid coolant inlet port and a liquid coolant discharge port fluidly coupled to the interior volume, and a continuous refrigerant tube sealingly disposed within the enclosure. The refrigerant tube is fluidly isolated from and in heat exchange relationship with the interior volume in which the liquid coolant flows. | 07-12-2012 |
20120192579 | REFRIGERANT VAPOR COMPRESSION SYSTEM OPERATION - A method is provided for protecting a refrigerant vapor compression system during a standstill period following shutdown of the refrigerant vapor compression system. A method is provided for detecting a low refrigerant charge level in a refrigerant vapor compression system operating in a transcritical mode. A refrigerant vapor compression system is provided that includes a controller operative to perform a refrigerant charge detection method. | 08-02-2012 |
20130031934 | REFRIGERANT VAPOR COMPRESSION SYSTEM WITH INTERCOOLER - A refrigerant vapor compression system includes a compression device having at least a first compression stage and a second compression stage, a refrigerant heat rejection heat exchanger disposed downstream with respect to refrigerant flow of the second compression stage, and a refrigerant intercooler disposed intermediate the first compression stage and the second compression stage. The refrigerant intercooler is disposed downstream of the refrigerant heat rejection heat exchanger with respect to the flow of a secondary fluid. A second refrigerant heat rejection heat exchanger may be disposed downstream with respect to refrigerant flow of the aforesaid refrigerant heat rejection heat exchanger, and a second refrigerant intercooler may be disposed intermediate the first compression stage and the second compression stage and downstream with respect to refrigerant flow of the aforesaid refrigerant intercooler. | 02-07-2013 |
20130312376 | Liquid Vapor Phase Separation Apparatus - A phase separation apparatus is provided for separating a two-phase fluid flow into a liquid phase portion and a vapor phase portion. The phase separation apparatus may be applied to the separation of a two-phase refrigerant flow in a refrigerant vapor compression system operating in a transcritical cycle. | 11-28-2013 |
20140331704 | Pressure Relief Valve With Protective Cap - A pressure relief valve ( | 11-13-2014 |
Patent application number | Description | Published |
20110006548 | MECHANISM FOR LOCKING A DOOR OF AN ELECTRIC HOUSEHOLD APPLIANCE - A mechanism for locking a door of an electric household appliance is improved in that a slider jaw is hinged to a body of a slider in such manner that, by its tooth, it snaps or releases a head of a latch and that the slider jaw is provided with an opening finger, and a mechanism housing is provided with a hindering element, which thrusts the opening finger of the slider jaw, when the slider moves in direction of the force of the spring, so that the slider jaw gets open. The slider body and the slider jaw are preferably made of different materials: the slider body of a polyoxymethylene copolymer and the slider jaw of a polyamide or of a ZL4 alloy having a composition Zn:A14:Cu1. The proposed mechanism is not susceptible to plastic deformation of the junction area between the slider body and the slider jaw. | 01-13-2011 |
20110291427 | DOOR LOCK DEVICE FOR AN ELECTRIC HOUSEHOLD APPLIANCE WITH MOVABLE LATCH - A door lock device for an electric household appliance with movable latch, in particular a dryer, where the latch is carried by the door of the electric household appliance rotating on a plane, normally perpendicular to a door rotation axis, including a frame carried in use by the casing of the electric household appliance and provided with striker means for the latch; where the striker means are obtained on a pair of opposite jaws carried by the frame adjacent to each other and movable against the bias of elastic means and where the frame is provided with guiding means for the jaws adapted to cause the jaws to be driven apart from each other in response to a traction exerted in use on the latch, said elastic means and guiding means being arranged so that the movement of the jaws occurs on a plane arranged perpendicular in use to the rotation plane of the latch. | 12-01-2011 |
20120131999 | PRESSURE SENSOR FOR AN ELECTRIC HOUSEHOLD APPLIANCE WITH ADDITIONAL SECURITY FUNCTION - A pressure sensor including: a casing fluid-tightly divided into a first and a second chamber by a deformable membrane and means for connecting the first chamber to the environment and the second chamber to a tank for an operative fluid of an electric household appliance for detecting the level thereof according to a deformation of the membrane upon the establishment of a differential pressure in the two chambers; wherein the membrane carries toward the first chamber a rigid disc operatively associated with a switch carried by the casing to either close or open the switch upon the deformation of the membrane beyond a predetermined entity. | 05-31-2012 |