Patent ID: 6976645

Claim:
An ejector comprising an ejector body having therein integrally formed a nozzle having inlet and outlet ends, a diffuser having inlet and outlet ends and a suction passage defining a suction port between the outlet end of said nozzle and the inlet end of said diffuser, said nozzle and diffuser defining fluid passages of a rectangular cross section having a constant height in which the narrowest portion of the fluid passage of the nozzle defines a throat, wherein, opposing side walls of said fluid passage of the diffuser have diverging portions each of which resides in a zone of angle of 2.5–5 degrees with respect to a line drawn in parallel with the centerline of the diffuser from the point of the associated one of opposing side walls of said fluid passage of the nozzle at said throat, and wherein the cross sectional area of said throat is within a range of 1.5–4.0 mm 2 .