Exhaust valve structure
US8950731B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Aug 17, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2530/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust valve structure includes: an inner cylindrical portion that forms an introducing passage of exhaust gas and that has a stay member; a valve element that closes or opens the introducing passage; and a wire mesh that is fixed to the stay member and that contacts the valve element when the introducing passage is closed. The wire mesh is formed in a shape such that a diameter of the wire mesh gradually increases toward a downstream side of the introducing passage and a load exerted on the stay member when the valve element contacts the wire mesh is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.