| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a secondary air cleaner which is formed into a compact form and effectively achieves a function of a filter.SOLUTION: The invention relates to a secondary air cleaner 41 which cleans air introduced from the exterior to purify an exhaust gas of an engine 3. The secondary air cleaner 41 includes: a cleaner case 44 where an internal space is divided into a dirty room R1 and a clean room R2 by a filter 43; and an inlet pipe 45 which is provided in the cleaner case 44 so as to pass the clean room R2 and reach the dirty room R1. The inlet pipe 45 includes an intake air outlet part 63 which is disposed in the dirty room R1 so as to introduce the air from the exterior of the cleaner case 44 into the dirty room R1. The inlet pipe 45 is provided so that an extension line L of a central axis of the intake air outlet part 63 intersects with a bottom surface 47a of the cleaner case 44 which faces the filter 43.</p> |
