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.

Date of Patent:
Jun. 22, 2021

Filed:

Dec. 11, 2017
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventor:

Shohei Kono, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 13/00 (2006.01); F02F 7/00 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
F01M 13/00 (2013.01); F02F 7/0002 (2013.01); F02F 7/0053 (2013.01); F02M 35/10222 (2013.01);
Abstract

In an internal combustion engine, a breather chamber can be formed without increasing the number of component parts. 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; and a bearing member () fastened to the engine block in the crank chamber to rotatably support a crankshaft; wherein the engine block is provided with a central recess () formed in a part thereof to which the bearing member is fastened, a blow-by gas inlet passage () communicating the central recess with the crank chamber, and a blow-by gas return passage () forming a part of a passage communicating the central recess with an intake device, the central recess and the bearing member jointly defining a central breather chamber.


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