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. 19, 2017
Filed:
Aug. 03, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Yusuke Hoki, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
The invention reduces exhaust emission by quickly supplying CO2 into a cylinder, and restraining a delay in EGR, when an EGR request occurs. An engineincludes an upstream EGR passage, a middle EGR passage, a downstream EGR passage, a bypass passage, an EGR valve, a changeover valve, an EGR cooler, a CO2 adsorbent. When an EGR request does not occur, the ECUkeeps a temperature of the CO2 adsorbentin a release temperature region by the heater, and opens the EGR valveby a valve opening set time period t so that a gas in the middle EGR passageis replaced with CO2 released from the CO2 adsorbent. When an EGR request occurs, CO2 accumulated in the middle EGR passagecan be quickly supplied into a cylinder, without releasing CO2 from the CO2 adsorbent