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:
Jan. 17, 2023
Filed:
Dec. 11, 2017
Honda Motor Co., Ltd., Tokyo, JP;
Shohei Kono, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
In an internal combustion engine, an oil return passage extending from a breather chamber can be formed without increasing the number of component parts and without increasing the size of the internal combustion engine. The internal combustion engine () comprises an engine block () defining a cylinder (); a case member () fastened to a lower part of the engine block to define a crank chamber jointly with the engine block; a bearing member () fastened to the engine block in the crank chamber to rotatably support a crankshaft; a breather chamber () defined in the engine block; an inlet passage () formed in the engine block to communicate the crank chamber with the breather chamber; a connection pipe () communicating the breather chamber with an intake device; and an oil return passage () formed at least in the bearing member, and extending from a bottom part of the breather chamber to an oil return port () opening at an outer surface of the bearing member. The oil return port may be provided in a lower part of the bearing member.