Pressure booster and fuel injection system with a pressure booster
US6634336B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M57/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure booster for increasing the injection pressure in direct-injection internal combustion engines with a plurality of cylinders, in particular diesel engines, having a booster piston which has a relatively large end face that is subjected to a relatively low pressure and a relatively small end face at which in the pumping stroke an elevated injection pressure prevails, wherein on the side remote from the relatively large end face, because of the difference in size between the two end faces of the booster piston, an idle volume results. The idle volume is in communication with a cantilevered spring reservoir disposed locally for each individual cylinder or centrally for all the cylinders of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.