| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an after-treatment device for exhaust gas purifying exhaust gas by using an exhaust port which is a space immediately downstream of a combustion chamber as a reactor. <P>SOLUTION: The after-treatment device for exhaust gases immediately downstream of a combustion chamber comprises; a discharge unit 810 disposed in a cylinder head 300 and having electrodes 812, 813 exposed to an exhaust port 320; an antenna 820 disposed on a back of a valve head 522; an electromagnetic wave transmission passage 830 which is formed in a valve stem 521 and has one end connected with the antenna and the other end covered with an insulator or a dielectric element and extending to and connected with a receiving unit 521c, which is positioned and fitted in a guide hole 340 in the valve stem; and an electromagnetic wave generating unit 840 for feeding electromagnetic waves to the receiving unit. The after-treatment device is configured to discharge from the electrodes of the discharge unit thereby emitting the electromagnetic waves fed from the electromagnetic wave generating unit through the electromagnetic wave transmission passage, from the antenna. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
