CERAMIC HONEYCOMB FILTER TYPE AND EXHAUST GAS PURIFYING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a honeycomb filter capable of easily causing combustion by a catalyst substance of fine particles, preventing the deposit of fine particles on the honeycomb filter, avoiding a problem of the breakage and melting loss of the filter, and reducing an increase in pressure loss stably over a long time.

SOLUTION: This ceramic honeycomb filter has such structure that exhaust gas passes through a thin hole formed in a bulkhead of a honeycomb structural body by sealing a flow passage of the porous ceramic honeycomb structural body. A catalyst substance is held in at least the bulkhead and the sealing part. At least one exhaust gas flow-in side sealing part is arranged apart from an exhaust gas flow-in side end face.

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