| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compact and highly airtight exhaust gas switching valve and an exhaust gas post-treatment device using the same. <P>SOLUTION: A cylindrical valve housing 11 is used, an exhaust gas lead-in hole part 31 and exhaust gas discharge holes 32, 33 are provided in a peripheral wall part of the valve housing 11, a rotary valve 15 rotatably coaxially disposed in the valve housing 11, and either one of the exhaust gas discharge holes 32, 33 can be selectively closed with a semicylindrical outer peripheral surface 16A. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
