Patent ID: 9381467
Filing Date: 2016-07-05
CPC Classification: B01D,B01J,F01N,Y02T

Claim Text:
1. A metal honeycomb carrier for cleaning an exhaust gas, comprising a metal outer casing having inserted thereinto a metal honeycomb structure including a metallic flat foil and a metallic corrugated foil, wherein perforations in an opening ratio of 30 to 60% are provided in either one or both of said flat foil and said corrugated foil, wherein perforations are provided in the upstream and downstream regions in the exhaust gas flow direction, and perforations are not provided in the middle region in the exhaust gas flow direction, and wherein the middle region is from 5 to 15% of an axial direction length of the honeycomb around a center of said axial direction length.