Ngk Insulators, Inc.

Seiya Nakano

Yuichi Tajima

Yoshihiro Sato

Shuji Ueda

Koichi Sendo

Yutaka Ishii

Ken Itazu

A particle adhesion device includes: a holder; a chamber; a nozzle; an intake port; and a flow control member. The holder holds a filter substrate having a first end face and a second end face. The chamber is in communication with the holder and is arranged so that the first end face of the filter substrate faces a space in the chamber. The nozzle is arranged on an opposite surface of the chamber opposing to the first end face of the filter substrate, and can inject an aerosol containing particles toward the first end face of the filter substrate. The intake port is provided on the opposite surface of the chamber and can incorporate an ambient gas. The flow control member is arranged on the opposite surface provided with the intake port, and can control the flow of the ambient gas.

Particle adhesion device, method for producing filter, and pillar shaped honeycomb filter

A pillar-shaped honeycomb structure including a plurality of first cells extending from an inlet side end surface to an outlet side end surface, and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, with a porous partition wall interposed therebetween, wherein a porous film having a porosity higher than that of the partition walls is provided on a surface of each of the first cells, and at a cross-section orthogonal to the direction in which the first cells of the pillar-shaped honeycomb structure filter extend, the average thickness of the porous film in the central portion is larger than the average thickness of the porous film in the outer peripheral portion.

Pillar-shaped honeycomb structure filter

Growing community of inventors

Nagoya, Japan

Seiya Nakano