Pulse generator for treating exhaust gas
US6344701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1999 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Aug 9, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0894
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method for treating exhaust gases. In this apparatus, a plurality of stages of reactor chambers (R1, R2, . . . Rn) are connected in series in the direction of an exhaust gas flow. Further, high-voltage power supplies (V1, V2, . . . and Vn) are connected to the reactor chambers (R1, R2, . . . and Rn), respectively. Moreover, in each of these reactor chambers, a streamer discharger plasma is generated. Furthermore, the more downstream a reactor chamber of a stage is placed, the lower energy to be cast into the reactor chamber becomes. The density of electrons generated in a gas decomposition unit is high in a portion thereof on the upstream side of the exhaust gas flow and the electron density is low in a portion thereof on the downstream side. Additionally, the present invention further provides a pulse generator in which a high voltage, which is an output voltage of a D.C. charger (V0), is simultaneously applied to a plurality of distributed constant lines (or transmission lines) (1−1, 1−2, 2−1, 2−2, . . . , N−1 and N−2), which are connected in parallel with one another, by means of a signal shortcircuit switch (S1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.