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. 07, 2021
Filed:
Dec. 08, 2020
Applicant:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Inventor:
Yasuo Okamoto, Shizuoka, JP;
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/46 (2006.01); F01L 1/18 (2006.01); F01L 1/26 (2006.01); F01L 13/00 (2006.01);
U.S. Cl.
CPC ...
F01L 1/462 (2013.01); F01L 1/185 (2013.01); F01L 1/267 (2013.01); F01L 13/0005 (2013.01); F01L 2001/186 (2013.01); F01L 2001/467 (2013.01);
Abstract
A valve gear includes a lost motion mechanism including a lost motion spring. A pillar is inserted into the lost motion spring, and a seat supports a lower end portion of the lost motion spring. A protrusion is provided on an opposite side of the seat from the lost motion spring. When viewed from an axial direction of the lost motion mechanism, the protrusion does not project out of the seat. By fitting the protrusion into the recess of the cylinder head, the seat, i.e., the lost motion mechanism is attached to the cylinder head.