Muffler assembly
US4109753A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1976 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Nov 19, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N1/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A muffler assembly for substantially dampening acoustical vibrations of engine exhaust gases. The muffler assembly includes flow control means, such as a diffuser having a centrally disposed baffle with radially extending deflector vanes having axially extending tabs. The diffuser can be positioned in a tubular expansion joint which is secured to an apertured louver tube within a loosely compact shell of sound attenuating material. The diffuser substantially blocks and restricts the axial flow of exhaust gases along portions of the longitudinal axis of the louver tube, deflects the flow of exhaust gases toward the sound attenuating material and creates turbulent flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.