Electrostatic fluid accelerator for and a method of controlling fluid flow
US7053565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2004 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Nov 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/47
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the immediately adjacent initial or forward-most electrodes of a next stage in an airflow direction. A single power supply or synchronized and phase controlled power supplies provide high voltage power to each of the stages such that both the phase and amplitude of the electric power applied to the corresponding electrodes are aligned in time. The frequency and phase control allows neighboring stages to be closely spaced at a distance of from 1 to 2 times an inter-electrode distance within a stage, and, in any case, minimizing or avoiding production of a back corona current from a corona discharge electrode of one stage to an electrode of a neighboring stage. Corona discharge electrodes of neighboring stages may be horizontally aligned, complementary collector electrodes of all stages being similarly horizontally aligned between and horizontally offset from the corona discharge electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.