Flutter dampened exhaust valve
US10180092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2016 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2260/16
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A snap-action valve assembly for an exhaust system is provided that includes a first conduit and a second conduit that are joined to together to define an exhaust passageway. A valve flap is disposed within the exhaust passageway for controlling exhaust flow. A shaft supports the valve flap in the exhaust passageway for rotation between open and closed positions. First and second bushings support the shaft. A pad made of wire mesh is attached to the valve flap. The pad includes an end portion that contacts the first or second conduit in the closed position and side wings that contact the first or second conduit in the open position. A resilient tongue may support the pad on an angle relative to the valve flap and a mass damper may be attached to one end of the shaft. These features dampen vibration and reduce valve flap flutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.