Fuel metering arrangement in pneumatically assisted direct fuel injection devices
US5694905A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Nov 12, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M71/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel metering arrangement in devices for pneumatically assisted direct fuel injection into an internal combustion engine cylinder head (12) provided with a chamber (19) housing a connecting rod (23) for operating a compression piston (24) slidingly guided within a jacket (25) provided with one or more transfer conduits (26) connecting said internal chamber (19) to a variable-dimension space (27) positioned downstream of the piston (24) and upstream of a valve (28) providing access to a combustion chamber (29), fuel feed means (31, 33, 35) being connected to said variable-dimension space (27). In this manner a very rapid transient is achieved during acceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.