Exhaust gas recirculation control system for an internal combustion engine
US4161929A · kind A · utility
53Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1977 |
| Grant date | Jul 24, 1979 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust gas recirculation control system for an internal combustion engine including a diaphragm type exhaust gas recirculation control valve provided at a middle portion of a passage for conducting exhaust gases to be recirculated, the control valve being controlled by the fluid pressure supplied to its diaphragm chamber, wherein the fluid pressure is controlled to accord with a target value prepared to provide the optimum exhaust gas recirculation in various operating conditions of the engine and selected in accordance wtih the current operating conditions of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.