Noise suppressing muffler
US5723827A · kind A · utility
20Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2490/155
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A plurality of chambers are partitioned in a muffler by a baffle board. The muffler is provided with an exhaust gas passage for discharging exhaust gas outside the muffler via these chambers and a valve that bypasses a part of the exhaust passage. This valve opens according to the exhaust gas pressure. Also provided are a mechanism for pushing the valve in a closing direction, and a mechanism for damping the shock when the valve closes. Thus, valve closing noise is suppressed, and exhaust gas noise is further suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.