Low back pressure exhaust silencer for diesel locomotives
US4360075A · kind A · utility
18Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | May 11, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust silencer especially for turbo-charged diesel locomotives with a single exhaust outlet combines a straight through exhaust duct preferably diverging to recover velocity pressure and minimize back pressure with dual silencing means including a large expansion tank around the duct tuned to attenuate a fundamental low frequency exhaust noise peak and smaller reactive chambered means in the duct sized to attenuate a selected mid range of higher frequency exhaust noise. Various features are included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.