Method of assessing operation of an internal combustion engine common-rail injection system
US6502551B2 · kind B2 · utility
17Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of assessing operation of a common-rail injection system of an internal combustion engine; the injection system having a number of injectors, a high-pressure circuit supplying high-pressure fuel to the injectors, and a low-pressure circuit supplying fuel to the high-pressure circuit; and the method including the steps of hydraulically isolating the high-pressure circuit from the low-pressure circuit and the engine; and assessing operation of the injection system as a function of the fuel pressure drop in the high-pressure circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.