Pressure storage fuel injection system
US5622152A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Jul 5, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure storage (common rail) fuel injection system for an engine is provided, in which the fuel injection pressure rise response when quickly accelerating the engine is improved, engine output shortage is prevented, engine noise is reduced, and improvement is made with respect to soot generation and exhaust gas particulation. A booster is provided to boost pressurized fuel fed out from a pressure storage with a directional control valve for piston operation. Low pressure fuel injection in which fuel from the pressure storage is fed directly to fuel injection valve for injection, and high pressure fuel injection in which fuel having been boosted by the booster is fed to the fuel injection valve for injection, are switched one over to the other by a directional control valve for fuel injection control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.