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:
Oct. 13, 2015

Filed:

Jul. 19, 2012
Applicants:

Yoshiki Nagahashi, Wako, JP;

Kazuya Tajiri, Wako, JP;

Fumiaki Okubo, Wako, JP;

Inventors:

Yoshiki Nagahashi, Wako, JP;

Kazuya Tajiri, Wako, JP;

Fumiaki Okubo, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 75/06 (2006.01); F16F 15/26 (2006.01); F02B 67/00 (2006.01); F02B 75/20 (2006.01); F02B 61/02 (2006.01);
U.S. Cl.
CPC ...
F02B 75/06 (2013.01); F16F 15/264 (2013.01); F02B 61/02 (2013.01); F02B 67/00 (2013.01); F02B 75/20 (2013.01); F16F 15/265 (2013.01);
Abstract

In an internal combustion engine with a balancer including a crankcase having a pair of wall portions, a crankshaft supported for rotation on the wall portions and having a balancer driving gear wheel provided thereon, and a balancer shaft supported for rotation by the wall portions and having a balancer driven gear wheel provided thereon, both gear wheels are disposed between the wall portions. A positioning mark including a set of marks provided on side faces in the same direction of the gear wheels is disposed near to pitch circles of both gear wheels. At a position opposing to both side faces of the one wall portion on the side opposing to the positioning mark on the pitch circles of both gear wheels, a through-hole extending through the one side wall is provided to permit the positioning mark to be visually observed through the through-hole.


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