Patent ID: 7384455
Filing Date: 2008-06-10
Classification: F01N,F02D,Y02T,Y10S

Abstract:
1. A method of removing particulate matter from diesel particulate filter media, the method comprising: removing the media from an exhaust emissions system of a vehicle; after removing the media from the exhaust emissions system, supporting the media in a substantially vertical orientation with one of an exhaust inlet side and an exhaust outlet side facing upward, and another of the exhaust inlet side and the exhaust outlet side facing downward; conveying gas to a gas storage tank; monitoring pressure in the tank; controllably releasing a plurality of gas pulses from the tank; supplying the gas pulses to the media through a funnel-like structure oriented on the upward-facing side of the media, the funnel-like structure having a narrow portion through which the gas pulses are delivered from the tank, and a wide portion opposing the upward-facing side of the media; and collecting, in a receptacle flow-connected to the downward-facing side of the media, ash dislodged by the gas pulses.