Patent attributes
An elongate flow tube having an interior cross-section surrounding a long axis, an inlet end for receiving a fluid flow and an outlet end for discharging the fluid flow, and a diffuser plate spanning the interior cross-section to separate the flow tube into an inlet chamber and an outlet chamber. The diffuser plate includes a plurality of apertures formed therein for directing the fluid flow from the inlet chamber to the outlet chamber. Furthermore, the diffuser plate is orientated longitudinally at a shallow angle with respect to the long axis of the flow tube to provide an indeterminate pulsation reflective surface, with the inlet chamber gradually decreasing in cross-sectional area and the outlet chamber gradually increasing in cross-sectional area across the length of the flow tube.