Trap apparatus with bypass
Apparatus for processing exhaust gases from an engine is described , said apparatus comprising: a housing with inlet means, outlet means, and first and second fluid flow paths with respect to said inlet means upstream and said outlet means downstream, said housing including a plurality of chambers with each of said chambers being separated from others by a gas impervious barrier; an acoustic element within said housing for attenuating the sound of said exhaust gases along said first and second fluid flow paths; means, within said housing, for filtering the particulates from said exhaust gases along said first fluid flow path, said filtering means including a ceramic filter element divided into a plurality of segments; means forming a section of said second fluid flow path for bypassing a portion of said filtering means to direct said exhaust gases from said second fluid flow path to said first fluid flow path; means for regenerating said filtering means, said regenerating means including a plurality of means for heating said segments and a plurality of means for directing combustion air through said segments, each of said chambers including one of said segments of said ceramic filter element, one of said plurality of heating means, and one of said plurality of air directing means; and means for controlling said regenerating means and said bypassing means.
- Assignee:
- Donaldson Co., Inc., Minneapolis, MN (United States)
- Patent Number(s):
- US 5212948; A
- Application Number:
- PPN: US 7-589050
- OSTI ID:
- 6397172
- Resource Relation:
- Patent File Date: 27 Sep 1990
- Country of Publication:
- United States
- Language:
- English
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