Patent ID: 6915876
Filing Date: 2005-07-12
Classification: F01N,F02B,Y02T

Abstract:
1. An exhaust processor comprising a housing defining an interior region and having an inlet and an outlet, a flow conduit located in the interior region of the housing to conduct engine combustion product from the inlet to the outlet, a static tuning volume located in the interior region of the housing and separate from the flow conduit, a longitudinally extending tuning tube positioned to lie in the interior region of the housing to extend into the static tuning volume, the tuning tube being formed to include an inlet opening positioned to receive therein engine combustion product extant in the flow conduit and an outlet opening arranged to lie in the static tuning volume and to place the static tuning volume in acoustic communication with acoustic waves associated with engine combustion product in the tuning tube, and a regulator mounted for movement in the static tuning volume longitudinally alongside the tuning tube to vary the size of the outlet opening formed in the tuning tube.