Charge injection device
US4605485A · kind A · utility
8Cited by
1References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Apr 17, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A charge injection device is disclosed which issues free charge injected fluid from an orifice (4) into a region of lower pressure downstream. To avoid significant impairment of charge injection level or efficiency by an electrode pair (5, 8) in the region of the orifice (4) due to the reduced downstream pressure, the pressure in the region of orifice (4) is raised, close to the pressure in the charge injection chamber (2), by feeding gas, such as sulfur hexafluoride, to a chamber (18) having an outlet orifice (27) issuing into the lower pressure downstream region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.