Method of manufacturing a fuel injector having an encased piezo electric actuator
US8240014B2 · kind B2 · utility
0Cited by
17References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jun 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49877
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of fabricating a piezo actuator is disclosed. The method includes forcing a blank against a mold to form a cylindrical casing having an open end and a closed end and rotating the cylindrical casing. The method also includes urging a die having a plurality of equally spaced protrusions into a surface of the cylindrical casing to form bellows in the cylindrical casing. The method further includes positioning a piezo element within the cylindrical casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.