Method and apparatus for metering fuel in a diesel engine
US5067461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and an apparatus for metering fuel in a diesel engine is suggested wherein the fuel quantity is taken from a multi-dimensional characteristic field in the part-load range, in the full-load range, however, a limitation of the fuel quantity is undertaken with the aid of a lambda control. Minimal value selection stages are used for decoupling the various methods of fuel quantity control. Notwithstanding the dead times present in the system, there results a dynamically satisfying lambda control system since up to a catch curve, a rapid control and thereafter a slower lambda control are used. The use of a lambda control for full-load limiting leads to an exhaust gas almost completely free of particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.