Exhaust brake with offset butterfly and method of reducing back pressure therein
US5676110A · kind A · utility
Inventor
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D9/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust brake for an internal combustion engine has a valve body with an exhaust gas conduit therethrough. The conduit has a center, an upstream portion and a downstream portion. The upstream portion is smaller in cross-section than the downstream portion. There is a butterfly valve member in the conduit of the valve body between the upstream portion and the downstream portion. The valve member has a cross-section and is positioned to closely fit the upstream portion when the valve member is closed. The valve member has a center and is pivotally mounted on a pivot which is offset with respect to the center of the conduit and offset from the valve member, whereby gas pressure in the upstream portion of the conduit acting against the valve member can rotate the valve member about the pivot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.