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:
Jul. 06, 2021
Filed:
Sep. 15, 2020
Applicant:
Ihi Corporation, Tokyo, JP;
Inventors:
Yutaka Masuda, Tokyo, JP;
Yoshiyuki Umemoto, Tokyo, JP;
Takahiro Takimoto, Tokyo, JP;
Jun Teramoto, Tokyo, JP;
Kazuki Yotsui, Tokyo, JP;
Keitoku Iguchi, Tokyo, JP;
Assignee:
IHI CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02B 75/04 (2006.01); F02D 15/02 (2006.01); B63H 3/00 (2006.01); F02B 61/04 (2006.01);
U.S. Cl.
CPC ...
F02D 15/02 (2013.01); B63H 3/00 (2013.01); F02B 61/04 (2013.01); F02B 75/04 (2013.01); F02D 2200/024 (2013.01); F02D 2200/0614 (2013.01); F02D 2200/101 (2013.01); F02D 2200/50 (2013.01);
Abstract
A compression ratio control device includes a compression ratio controller configured to control a compression ratio of a combustion chamber so that the maximum combustion pressure approaches a combustion pressure upper limit value (cylinder-internal-pressure upper limit value) based on a detection signal of a detector at least when an engine load is equal to or less than a predetermined load (engine full load).