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:
May. 10, 2022
Filed:
Oct. 02, 2020
Applicant:
Subaru Corporation, Tokyo, JP;
Inventor:
Naoki Masuda, Tokyo, JP;
Assignee:
SUBARU CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 1/42 (2006.01);
U.S. Cl.
CPC ...
F02F 1/4235 (2013.01);
Abstract
An engine includes a combustion chamber, and a cylinder head. The cylinder head has an intake port communicating with the combustion chamber. The intake port includes a first inner wall and a second inner wall as inner walls that are provided from an upstream side to a downstream side. A valve guide hole opens onto the first inner wall. The second inner wall faces the first inner wall. The first inner wall includes a first concavely curved surface configured to vary a flowing direction of intake air. The second inner wall includes a second concavely curved surface configured to vary the flowing direction of the intake air.