Abstract: A percussive pressure damper includes an entrance port, an exit port axially displaced from the entrance port, an axial flow channel extending from the entrance port to the exit port, a plurality of expansion chambers each extending radially from and in fluid communication with the axial flow channel, and an outer wall enclosing the axial flow channel and the expansion chambers. Each expansion chamber is enclosed by an inner surface of the outer wall and by interior walls, such that any cross section of the tube normal to the axial flow channel cuts through at least one interior wall between the axial flow channel and the outer wall. The expansion chambers may form a generally cylindrical honeycomb structure, each enclosing a hexagonal conical volume that expands in a radial direction, the expansion chambers axially stacked in radially symmetric and axially offset groups.

Abstract: A percussive pressure damper includes an entrance port, an exit port axially displaced from the entrance port, an axial flow channel extending from the entrance port to the exit port, a plurality of expansion chambers each extending radially from and in fluid communication with the axial flow channel, and an outer wall enclosing the axial flow channel and the expansion chambers. Each expansion chamber is enclosed by an inner surface of the outer wall and by interior walls, such that any cross section of the tube normal to the axial flow channel cuts through at least one interior wall between the axial flow channel and the outer wall. The expansion chambers may form a generally cylindrical honeycomb structure, each enclosing a hexagonal conical volume that expands in a radial direction, the expansion chambers axially stacked in radially symmetric and axially offset groups.