Exhaust silencer, especially for small vehicles
US4290501A · kind A · utility
33Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Jan 19, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2470/24
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust silencer for use with small vehicles which use low speed engines and have minimal space available for the silencer while still requiring a long exhaust path to silence the low frequency engine pulsations. The silencer includes a silencer chamber with an axis, and an exhaust pipe with a U-shape, one arm of which extends axially into the chamber, and the other arm of which extends parallel to the axis outside of the chamber, both for a substantial part of the length of the chamber. At least the bight of the U-shaped pipe is double-walled to minimize the emission of pulsations from that portion of the exhaust pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.