Fluid injector and mixer apparatus

Details Fluid injector and mixer apparatus Fluid injector and mixer apparatus

2008-04-15

2008-04-15

Soohoo, Tony G (Department: 1797)

Agitating

Having specified feed means

By suction

C366S174100, C239S088000, C239S533200, C239S533300

Reexamination Certificate

active

11015881

ABSTRACT:
An improved injector which mixes a secondary fluid into a carrier fluid stream has (a) a body for directing the flow of the carrier fluid, this body having an internal wall forming a flow passage therethrough, a central axis, an inlet, an outlet, and a port for receiving the secondary fluid that is mixed with the carrier fluid, (b) a ramp-like restriction portion which is located downstream of the body's inlet and upstream of the secondary fluid port and configured so as to decrease the effective cross-sectional area of the flow passage in the direction of the flow of the carrier fluid, (c) a ramp-like expansion portion which is located downstream of the secondary fluid port and upstream of the body's outlet and configured so as to increase the effective cross-sectional area of the flow passage in the direction of the flow of the carrier fluid, (d) a throat portion which is situated between the restriction and expansion portions, and (e) a cavity in the throat that extends from its internal wall and into the body, with the port entering the flow passage at a location in the throat cavity, and wherein this cavity is configured so to promote a vortical flow of the secondary fluid in the cavity.

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