Air assist metering apparatus and method
US6371387B1 · kind B1 · utility
6Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1997 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Mar 13, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/047
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of air metering is provided for obtaining a desired air flow through a fuel injector. The fuel injector comprises an air assist injector valve body and an air assist backup washer, having two or more flow channels, contained within the backup washer. The fuel injector further comprises a shroud member having a flat surface, abutting up against the backup washer so the flat surface of the shroud member combined with the flow channels in the backup washer meter and/or direct the air flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.