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:
Mar. 02, 2021
Filed:
Jan. 14, 2020
Applicant:
Honda Motor Co., Ltd., Tokyo, JP;
Inventors:
Toru Sekiguchi, Wako, JP;
Takashi Konomoto, Wako, JP;
Hiroki Ishikawa, Wako, JP;
Taku Hirota, Wako, JP;
Assignee:
HONDA MOTOR CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02M 35/08 (2006.01); F02D 9/02 (2006.01); F02M 25/06 (2016.01); F01M 13/00 (2006.01); F01M 13/02 (2006.01); F02B 37/00 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
F02D 41/222 (2013.01); F01M 13/0011 (2013.01); F01M 13/028 (2013.01); F02B 37/00 (2013.01); F02D 9/02 (2013.01); F02M 25/06 (2013.01); F02M 35/08 (2013.01); F02M 35/10222 (2013.01); F01M 2250/00 (2013.01);
Abstract
An internal combustion engine includes on-off valves that configure a closed space by closing an internal space of a breather line, a pump that depressurizes or pressurizes the closed space, a pressure sensor that detects a pressure of the closed space, and an abnormality assessment element that assesses abnormality of the breather line. The abnormality assessment element assesses abnormality of the breather line based on a pressure change of the closed space in a case where the closed space is depressurized or pressurized by the pump.