The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2002
Filed:
Aug. 09, 1999
Keisuke Kawamura, Nagasaki-ken, JP;
Tetsuro Shigemizu, Nagasaki-ken, JP;
Hirohisa Yoshida, Nagasaki-ken, JP;
Masayoshi Murata, Nagasaki-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An apparatus and method for treating exhaust gases. In this apparatus, a plurality of stages of reactor chambers (R , R , . . . R ) are connected in series in the direction of an exhaust gas flow. Further, high-voltage power supplies (V , V , . . . and V ) are connected to the reactor chambers (R , R , . . . and R ), 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 (V ), is simultaneously applied to a plurality of distributed constant lines (or transmission lines) (1 , 1 , 2 , 2 , . . . , N and N ), which are connected in parallel with one another, by means of a signal shortcircuit switch (S ).