Fuel system
US5681991A · kind A · utility
4Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1996 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M65/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of testing a fuel system of an internal combustion engine comprises measuring the instantaneous speed of a component of a pumping apparatus of the system this speed decreasing as fuel is pressurised to achieve fuel delivery to the engine as compared with the nominal engine speed due to "wind up" in the drive to the engine. The speed profiles obtained as fuel is supplied to each injection nozzle and compared to determine if the injection nozzles are working correctly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.