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:
Sep. 24, 2013
Filed:
Jul. 06, 2011
Shunsuke Toshioka, Susono, JP;
Shinya Hirota, Susono, JP;
Koichiro Fukuda, Numazu, JP;
Takafumi Yamauchi, Seto, JP;
Shunsuke Toshioka, Susono, JP;
Shinya Hirota, Susono, JP;
Koichiro Fukuda, Numazu, JP;
Takafumi Yamauchi, Seto, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
Utilizing the finding that the state of adsorption of NHon a selective reduction type NOx catalyst includes a weakly adsorbed state in which the adsorbed NHis useful for a reduction reaction of NOx and a strongly adsorbed state in which the adsorbed NHis not useful for the reduction reaction of NOx unless the state of adsorption is changed into the weakly adsorbed state, the apparatus of the invention includes an actual weakly-adsorbed amount-calculation NHthat is adsorbed on the selective reduction type NOx catalyst in the weakly adsorbed state, and a dispensation control portion that performs a dispensation control of the reductant dispensed by a reductant-dispensation portion, according to the actual weakly adsorbed amount calculated by the actual weakly adsorbed amount calculation portion.