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. 27, 2016
Filed:
May. 02, 2013
Applicant:
Isuzu Motors Limited, Tokyo, JP;
Inventors:
Yoshihumi Hanamura, Yokohama, JP;
Mitsuhiro Aso, Yokohama, JP;
Assignee:
ISUZU MOTORS LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0072 (2013.01); F02D 41/0052 (2013.01); F02D 41/1461 (2013.01); F02M 26/40 (2016.02); F02D 41/0077 (2013.01); F02D 41/1446 (2013.01); F02D 41/1448 (2013.01); F02D 2041/141 (2013.01); F02D 2250/36 (2013.01); Y02T 10/47 (2013.01);
Abstract
An internal combustion engine includes an Exhaust Gas Recirculation (EGR) system having an EGR valve and a reed valve in an EGR passage, and a control device that expresses a relationship between an opening degree of the EGR valve and a mass flow rate of an EGR gas by using a first volume flow rate of the EGR gas that can be expressed by using an isentropic flow equation of a nozzle of the EGR valve and a second volume flow rate of the EGR gas pumped out by the reed valve. Even if the reed valve (check valve) is provided in the EGR passage, the mass flow rate of the EGR gas can be calculated accurately.