Control apparatus for internal combustion engines, in particular a correction device dependent on charge pressure for super-charged diesel vehicle engines
US4359986A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1980 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Jul 11, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus for internal combustion engines is proposed, in which the adjustment range or the full-load position of a supply quantity adjustment member of the fuel metering apparatus is varied in accordance with the absolute pressure of the aspirated air in the suction tube of the engine in order to attain optimal combustion at the greatest possible torque. The control apparatus (FIG. 1) includes a pneumatic pressure converter and a pneumatic adjustment member. The pneumatic pressure converter, in a first pressure chamber, contains an evacuated diaphragm pressure box exposed to the aspirated air pressure (p.sub.L), which acts counter to a second diaphragm pressure box exposed in its interior to atmospheric air pressure (p.sub.A) and located in a second pressure chamber connected to a compressed air source. Both pressure boxes are connected via an actuation member supporting a valve member, and the valve member reduces the servo air pressure (p.sub.S) to a control air pressure (p.sub.St) which is proportional to the absolute aspirated air pressure (p.sub.L K), this control air pressure actuating the diaphragm adjustment member functioning counter to a restoring spring and to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.