Hydraulic intensifier assembly for a piezoelectric actuated fuel injector
US6520423B1 · kind B1 · utility
12Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/704
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric actuated fuel injector is provided for use in conjunction with an internal combustion engine. The fuel injector includes a piezoelectric actuator for actuating an injector valve, and a hydraulic assembly for interfacing between the piezoelectric actuator and the injector valve, where the injector valve axially separates from a discharge outlet in response to longitudinal expansion of the piezoelectric actuator, thereby allowing fuel flow from the fuel injector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.