Method and apparatus for electrochemical machining of spray holes in fuel injection nozzles
US5026462A · kind A · utility
9Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Mar 6, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/1806
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The inner end of a spray hole in a fuel injection nozzle for an internal injection engine is electrochemically machined by providing a negative electrode inside a chamber in said body, while applying an electrolyte under pressure to the exterior of the nozzle body, so as to cause the electrolyte to flow through the spray hole inwardly of said body. The electrolyte is preferably an aqueous solution of NaCl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.