| abstract |
The present invention provides a honeycomb filter capable of suppressing an increase in pressure loss. Comprising a honeycomb structure part (4) having a porous partition wall (1) arranged to surround a plurality of compartments (2), and a plugging part (5) configured to seal either end of the compartment, the honeycomb structure part A cross-section perpendicular to the direction in which the cells extend in the honeycomb structure part has a plurality of cell rows in which two or more cells are arranged in one direction, and the plurality of cell rows include: including the inflow cell 2a, constituted as an inflow cell The flow path area SA occupied by the chamber (2a) is larger than the flow path area SB occupied by the outflow compartment (2b) in the first compartment column (15), and the second compartment column ( 16), the width P1 (mm) of the first compartment column (15), the width P2 (mm) of the second compartment column (16) and the radius of curvature R at the curved corner (6) of the compartment ( μm) satisfies the relationship of the following formula (1). Formula (1): 0.4≤(R/1000)/((P1+P2)/2)×100≤20. |