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:
Dec. 12, 2017
Filed:
Aug. 26, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Hiromasa Nishioka, Susono, JP;
Kazuhiro Ito, Mishirna, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiroshi Otsuki, Gotenba, JP;
Yasumasa Notake, Susono, JP;
Daichi Imai, Shizuoka, JP;
Ryota Koutake, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi, JP;
Abstract
An exhaust purification device for an internal combustion engine is provided with an NOadsorbent for adsorbing NOin exhaust gas and an NOpurifying catalyst for purifying NOin exhaust gas, which are arranged in an engine exhaust passage. An electric heater is provided for raising the temperature of the NOadsorbent. When a signal requesting startup of an internal combustion engine is issued, the device starts to supply electric power to the electric heater before the internal combustion engine completely warms up, and supplies the electric heater with a quantity of electric power making the temperature of the NOadsorbent equal to or higher than the moisture desorption temperature but lower than the NOdesorption temperature.