ABSORPTION-TYPE COLD GENERATION DEVICE AND RETAINING VALVE MOUNTED ON THIS DEVICE

摘要

The invention relates to an absorption-type cold generation device, especially a refrigeration apparatus or an air-conditioning installation, and to the retaining valve with which this device is equipped. The device comprises an insulated refrigerating chamber containing an evaporator, an absorber, which picks up heat from a hot source and is connected to the evaporator by means of a duct, a condenser, which is mounted on this duct between the absorber and the evaporator of the refrigerating chamber, and a retaining valve connected to the duct between the condenser and the evaporator. This retaining valve (20) has a base (21) that constitutes an annular spherical seat (24) for an ultra-lightweight spherical ball (25) that can move inside a buffer tank (26) mounted on the upper face of the base (21). A capillary tube winding (30) is placed in this base (21) and communicates with the buffer tank (26) when the ball (25) is pressed on its annular seat (24).