摘要 |
A catalyst apparatus includes a metal carrier body for containing catalyst and at least a expansion room. The metal carrier body is arranged between an upstream portion and a downstream portion of an exhaust passage, and includes a gas entrance for conducting exhaust gas into the metal carrier body from the upstream portion and a gas exit for conducting the exhaust gas in the metal carrier body to the downstream portion. The expansion room is arranged between the gas entrance and the gas exit to communicate with a gas passage between the gas entrance and the gas exit for conducting the exhaust gas to flow between an inside of the metal carrier body and the expansion room.
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