Swirl Chamber

FIG. 1 is first end view of the swirl chamber.

FIG. 2 is a first side view of the swirl chamber.

FIG. 3 is a second end view, opposite the first end, of the swirl chamber; and,

FIG. 4 is a perspective view of the second end of the swirl chamber.

Broken lines, if present, form no part of the claimed design and are used for illustrative purposes to show an environment of the claimed design in a condition of use.