Method and system for controlling fuel pressure in a common rail fuel injection system
US6016791A · kind A · utility
35Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/503
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling the fuel pressure in a common rail fuel injection system which electronically controls a variable output high pressure pump based upon engine speed, torque and actual common rail pressure inputs, as well as the present system voltage, thereby providing simple yet stable control of the fuel pressure in the accumulator of the common rail system which is relatively insensitive to supply voltage fluctuations from the power source providing the electrical power to the solenoid-controlled valve which controls the high pressure pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.