PARTICULATE FILTER CLEANING METHODS AND APPARATUS

摘要

An internal combustion engine (24) is run to emit an exhaust flow (504) containing particulate (64). The exhaust flow passes through a filter element (42) to remove at least a portion (66) of the particulate from the exhaust flow. The removed particulate accumulates on the filter element. The filter element is cleaned. The cleaning includes detonating a fuel -oxidizer combination in a conduit (122) and impacting the filter element with a wave (100) from the detonation.