Exhaust gas recirculation for a diesel engine
US4237837A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Jan 4, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust gas recirculation control valve for a diesel engine. The valve comprises a valve casing of a rectangular cross-sectional shape disposed in the intake line of the engine. A valve seat connected to an exhaust line of the engine via an EGR passageway is formed in a side wall of the rectangular-shaped valve casing. A valve member is arranged in the casing and then rotated about an axis located upstream of the valve seat in such a manner that the valve member is moved between a position wherein valve member closes the valve seat and another position wherein the plate closes the intake passageway. The valve member comprises a base portion of a flat shape and a guide portion which is inserted into the valve seat when the degree of opening of the valve member is small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.