Rate control in accumulator type fuel injectors
US4948049A · kind A · utility
22Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Feb 24, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/466
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides means for controlling the rate of fuel injection of an accumulator injector of the type employing a pressure amplifying piston assembly. In one form of the invention, the injection rate is controlled by restricting the pressure decay in the amplifier chamber. In another form of the invention, means are provided for delaying the full opening of the injector valve needle after an initial valve opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.