Diesel particulate filter unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 9, 2002
app pub date -
May 30, 2001
filing date -
Nov 7, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a diesel particulate filter unit 1 having a mat type filter member 15 which is laminated with inorganic fibers, a passing area altering means 30 is provided to alter the area of the exhaust gas G passing through the filter member 15 and the diesel particulate filter unit is so provided that a rise time of the trap efficiency can be shortened by speeding up it at the time of trap and after a high trap efficiency is obtained, PM trap can be continued with a high trap efficiency for a long time in preventing the filter from an increase of the pressurized damage.
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