Diesel particulate filter system with meta-surface cavity

Gas separation – With nonliquid cleaning means for separating media – With heating or cooling means

Reexamination Certificate

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C055S282200, C055S283000, C055S385300, C055S523000, C055S524000, C055SDIG010, C095S273000, C095S278000, C060S303000, C060S311000

Reexamination Certificate

active

10987314

ABSTRACT:
A diesel particulate filter including a microwave-absorbing target housed within a waveguide cavity lined along the walls with a hard-electromagnetic surface (HES). The HES modifies specific electromagnetic boundary conditions for a given design frequency so as to enable the establishment of electromagnetic field patterns which are more uniform across the cavity thereby causing the target material to undergo enhanced uniformity heating. The heating of the microwave absorbing media causes particulate buildup to be vaporized and removed from the filter by the exhaust stream flow.

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