EXHAUST GAS SWITCHING VALVE AND EXHAUST GAS POST-TREATMENT DEVICE

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. 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 periphera...

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Hauptverfasser: KUROKI FUMIHIRO, FURUYA YUJI, YOKOTA YASUO
Format: Patent
Sprache:eng
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Zusammenfassung: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. 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. COPYRIGHT: (C)2005,JPO&NCIPI