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. 31, 2019
Filed:
Sep. 28, 2016
Applicant:
Denso Corporation, Kariya, Aichi-pref., JP;
Inventors:
Masanori Kurosawa, Kariya, JP;
Kosuke Nakano, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F01M 13/02 (2006.01); F02D 41/18 (2006.01); F02M 25/08 (2006.01);
U.S. Cl.
CPC ...
F02D 41/22 (2013.01); F01M 13/022 (2013.01); F02D 41/18 (2013.01); F02M 25/0809 (2013.01); F02D 2041/224 (2013.01);
Abstract
An ECU functioning as a diagnostic device includes an information acquisition portion acquiring a flow rate of a fluid flowing through an intake pipe, and a diagnostic portion performing a diagnosis on a second purge pipe employed as a fuel gas pipe regarding a connection failure. The diagnostic portion diagnoses a connection failure of the fuel gas pipe according to magnitude of a pulsation of the flow rate acquired by the information acquisition portion.