| 摘要 |
<p>Provided is a retention structure of a honeycomb structure in an exhaust gas purification device, wherein the exhaust efficiency is not reduced while a honeycomb structure is mainly retained by a side surface retention member wound around the outer peripheral surface of the honeycomb structure, the honeycomb structure can be prevented from cracking, and the retention structure can be easily produced. The retention structure of a honeycomb structure is provided with a catalyst carrier (2) composed of a honeycomb structure, a metal case (3) within which the catalyst carrier (2) is retained, and a side surface retention member (4) provided between the catalyst carrier (2) and the metal case (3). The catalyst carrier (2) has a plurality of cells (21) and a coat layer (5) which covers the outer peripheral surface of the catalyst carrier (2). A projected portion (51) is formed on at least a part of the coat layer (5) in the circumferential direction, and the catalyst carrier (2) is positioned and secured to the metal case (3) via the side surface retention member (4) disposed on the outside of the projected portion (51).</p> |
