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. 03, 2004
Filed:
May. 21, 2001
Tatsuji Mizuno, Yokohama, JP;
Shinji Tsuji, Numazu, JP;
Masahiko Takeuchi, Susono, JP;
Kenji Kato, Sunto-gun, JP;
Takaaki Ito, Mishima, JP;
Yoshitsugu Ogura, Toyota, JP;
Tetsuo Kawamura, Susono, JP;
Mareo Kimura, Nagakute-cho, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The present invention is a method of solidifying sulfur component being the cause of “SOx poisoning” by use of a sulfur solidifier. The solidifier includes a metal element having a function of oxidizing the sulfur component and a basic metal element. And the solidifier solidifies sulfur component before exhaust gas flows into an NOx-occluding reduction-type exhaust purifying catalyst located on an exhaust path. Since the foregoing sulfur solidifier includes the above metal element and the basic metal element, it can effectively solidify the sulfur component which are the cause of the SOx poisoning, and ensure improvement in purification performance.