Patent ID: 7559212
Filing Date: 2009-07-14
Classification: F25B

Abstract:
1. A refrigerant pressurization system comprising: an ejector having a first conduit for flowing a liquid refrigerant therethrough and a first nozzle for flowing a vapor refrigerant and accelerating at least a refrigerant mixture therethrough and a second nozzle extending from said first conduit, said first conduit positioned such that the liquid refrigerant is discharged from said first conduit into said first nozzle; said ejector including a mixing chamber for condensing the vapor refrigerant; said mixing chamber comprising at least a portion of said first nozzle and transitioning into a second conduit having a substantially constant cross sectional area; said ejector including means for controlling the flow of the liquid refrigerant; wherein at least a portion of said means for controlling the flow of liquid refrigerant extends into said second nozzle; and wherein the refrigerant mixture in at least a portion of said second conduit is at a pressure greater than that of the liquid refrigerant entering said first conduit and greater than that of the vapor refrigerant entering said first nozzle.