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:
Sep. 21, 2004
Filed:
Sep. 26, 2002
Applicant:
Inventor:
Masahiko Kato, Shizuoka, JP;
Assignee:
Yamaha Marine Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 3/304 ;
U.S. Cl.
CPC ...
F02B 3/304 ;
Abstract
A lubrication system for two-cycle engine includes a lubricant recess formed in a wall of a crankcase. Oil that becomes deposited within the intake passageway is directed to the lubricant recess preferably by a guide groove and pools adjacently below a connecting rod endcap. As the crankshaft with attached connecting rod rotates, pooled oil is drawn into the interior of the connecting rod endcap. Preferably, oil holes are formed radially outward through the connecting rod endcap to throw collected oil around the crankcase chamber when exposed to a centrifugal force.