| 摘要 |
<p>A catalyst muffler, comprising a muffler body (1) provided with an exhaust passage (2), an exhaust gas outlet (3) and an exhaust port (5); a negative pressure air indraft hole (4) is disposed on the side wall of the exhaust passage (2). With the air indraft provided on the side wall of the exhaust passage, the catalyst muffler utilizes the negative pressure effect to draw the cooling air from the side wall of the exhaust passage into the exhaust passage and mix with the exhaust flow, thus lowering the temperature of waste gas discharged from the exhaust port.</p> |
