FIELD: machine building.
SUBSTANCE: disclosed is a stackable disc, for noise attenuation, which comprises an inner and an outer perimeter edge. Inlet passages disposed along inner perimeter edge, and outlet passages disposed along outer perimeter edge. Outlet passages include first and second outlet passages. Each of first outlet passages has a first width, and each of second outlet passages has a second width that is greater than, first width. fluid entering inlet passages, passes through injection section adjacent discs and exits through first and second outlet passages.
EFFECT: first and second outlet passages cooperate to disperse noise peak frequencies of fluid, exiting outlet passages, thereby reducing overall noise level of said fluid.
17 cl, 10 dwg
