Donaldson Comapny, Inc.

Ed Steinbrueck

Wayne M Wagner

Douglas E Flemming

Eugene D Wilson

A filter apparatus for reducing particulates from exhaust gases from a diesel engine having a housing containing a ceramic filter unit with an array of spirally mounted resistance rods electrically connected in parallel. A ceramic foam element is located behind the array, and is used to reflect heat back to the ceramic filter. A 12 or 24 volt battery is used as the power source.

Diesel engine gas filter with electrical heater

A flat array of a plurality of spiral wound resistance rods backed by a ceramic foam disc for use with filter apparatus for reducing particulates from exhaust gases of an engine. The array of resistance rods is electrically connected in parallel and can be energized by a 12 or 24 volt vehicle battery.

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Eden Prairie, MN, United States of America

Ed Steinbrueck