Exhaust gas recirculation apparatus
US4181109A · kind A · utility
6Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | May 15, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust gas recirculation passageway leads from an engine exhaust passageway to an engine induction passageway downstream of a throttle valve. A fuel control member of an injection pump moves the throttle valve in the opening direction to reduce the vacuum in the induction passageway and thereby the amount of exhaust gas recirculation only when the fuel control member is moved beyond a predetermined position in the fuel increasing direction. A stopper limits movement of the throttle valve in the closing direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.