Silencers
US4004650A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1975 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | Dec 29, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2490/155
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to silencers for damping sound waves created in gases, comprising a series of thin-walled, tubular damping units and an inner tube for conducting gases through the end walls of the units, the tube having openings communicating with the chambers defined in each unit. In accordance with the invention each damping unit is surrounded by an outer tube which is connected in a gas-tight fashion through two end walls with the cylindrical surface of the damping unit, and the space between the cylindrical surface and the outer tube is divided into at least two chambers communicating with the inner tube through a transversely-extending branch pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.