Patent ID: 6322327
Filing Date: 2001-11-27
Classification: F04F

Abstract:
An eductor jet pump comprising:a nozzle assembly comprising a nozzle housing defining at least one air hole, a fluid nozzle which defines a constricted throat, and an air injection nozzle which defines a nozzle opening, said fluid nozzle and said air injection nozzle forming an air gap which is in fluid communication with said at least one air hole and which surrounds said constricted throat, said constricted throat terminating at said nozzle opening, said at least one air hole being located on or before said nozzle opening; said nozzle assembly feeding into a suction chamber;a discharge pipe which feeds into said constricting throat of said nozzle assembly;a pumping means to force fluid through said discharge pipe and said constricted throat;an outlet pipe which defines a receiving outlet downstream from said suction chamber;a suction pipe which defines a suction inlet and which has a first end connected to said suction chamber at an angle greater than 0.degree. and less than 180.degree., and a second end open to the surrounding environment; wherein said suction chamber is in fluid communication with said receiving outlet, said suction inlet and said nozzle opening of said nozzle assembly.