Shell component to protect injector from corrosion
US5494225A · kind A · utility
44Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Aug 18, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/168
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A non-metallic cylindrical shell is fitted to the exterior of a metallic valve body portion of a solenoid-operated fuel injector to cover otherwise exposed metal that exists between a lower O-ring seal proximate the nozzle and a non-metallic overmold that covers the solenoid and an adjoining portion of the valve body. The shell and the cover come together at a joint where they mutually axially overlap in such a manner that assures both coverage of the exposed metal and retention of the shell on the valve body for the full tolerance stack-up range of the various parts when assembled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.