Exhaust gas recirculation control system for an internal combustion engine
US4286567A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Dec 27, 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 system for particular application to a diesel engine, which includes a combination of a fuel injection pump having a movable fuel amount determining element whose position regulates the amount of fuel injected, a conversion device having a fixed orifice and a variable orifice provided downstream of the fixed orifice and whose effective opening area is varied according to the movement of the fuel amount determining element, whereby, when a constant fluid pressure is supplied to the fixed orifice, a fluid pressure which changes according to the amount of fuel injected is taken off at a middle portion between the fixed and variable orifices, and a fluid pressure actuator which operates an exhaust gas recirculation control valve by being energized by the fluid pressure taken off from the abovementioned middle portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.