| 摘要 |
<p>PURPOSE:To prevent a damage or a destruction of a carrier by composing a cushion member of the internal first cushion member of a relatively high density in contact with the surface of a carrier and the external second cushion member of a relatively low density in contact with the first member. CONSTITUTION:A catalyst carrier 2 inside an external case 1 is held in such a manner that its both ends are subjected to external pressures of cushion members 4. The cushion member 4 is composed of the internal first cushion member 4a of a relatively high density in contact with the surface of the carrier 2 and the external second cushion member 4b of a relatively low density in contact with it. The first cushion member 4a has no fear of deteriorating due to its own heat and keeps heat conductivity from the carrier 2 to the second cushion member 4b low so that a cushioning effect of the second cushion member 4b may be maintained satisfactory for a long term. And a contact face of the member 4a with the carrier 2 is not partially subjected to an excessively high pressure so that the carrier 2 can be safeguarded from a destruction.</p> |
