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. 08, 2020
Filed:
Mar. 30, 2017
Applicant:
Honda Motor Co., Ltd., Tokyo, JP;
Inventors:
Dai Kataoka, Wako, JP;
Yoshihiro Takada, Wako, JP;
Assignee:
HONDA MOTOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 1/06 (2006.01); F01L 13/00 (2006.01); F01M 9/10 (2006.01);
U.S. Cl.
CPC ...
F01M 1/06 (2013.01); F01L 13/00 (2013.01); F01L 13/0036 (2013.01); F01M 9/10 (2013.01); F01M 9/101 (2013.01); F01M 9/102 (2013.01); F01L 2013/0052 (2013.01); F01M 2001/064 (2013.01);
Abstract
An engine camshaft has a lubricating oil passage formed along the longitudinal axis of the same, a cam communicating oil hole is radially formed from the lubricating oil passage to an outer peripheral surface of the camshaft at the same axial position as an engine valve. Cam lubrication holes are radially formed from the inside to cam surfaces of cam lobes formed around a cam carrier fitted around the camshaft. One of the cam lubrication holes of the cam lobes shifted to a position for operating the valve communicates with the cam communicating oil hole of the camshaft to supply lubricant oil.