Methanol fueled diesel internal combustion engine fuel injector nozzle
US5221046A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1991 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Sep 10, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spray injector nozzle for a diesel engine fuel injector particularly suited for methanol and other low cetane liquid fuels constructed in a manner to effectively disburse fuel to the combustion chamber and maintain to a minimum hydrocarbon emissions, and substantially control or eliminate the build up of harmful deposits at the injector orifice. The spray injector nozzle is provided with an inner main cavity and an inner second cavity portion capable of flow communication with a pressurized fuel supply and a plurality of spray outlets to communicate the fuel to the combustion chamber. A retractable needle is utilized to engage an inner valve seat and completely block the flow of fuel communication to the spray outlets with the spray outlets located high in the valve seat of the spray nozzle. In one form, the nozzle includes a ball or other insert member completely filling the sac portion of a valve covered orifice type injection tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.