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:
Apr. 26, 2011

Filed:

Apr. 11, 2007
Applicants:

Yoshiaki Koyama, Saitama, JP;

Hideo Ueshima, Saitama, JP;

Yusuke Endo, Saitama, JP;

Inventors:

Yoshiaki Koyama, Saitama, JP;

Hideo Ueshima, Saitama, JP;

Yusuke Endo, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 11/10 (2006.01); F02B 75/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an engine, an oil level sensor () provided in a bottom part of an oil pan () storing engine oil so as to stand vertically upright is placed between a mutually parallel pair of balancer shafts () housed in a balancer housing () provided between a lower face of a cylinder block and the oil pan (). This not only enables the oil level sensor () to be placed compactly by utilizing effectively dead space formed between the pair of balancer shafts (), but also enables agitation of engine oil to be suppressed by the pair of balancer shafts () and any degradation in detection precision due to engine oil splashing over the oil level sensor () to be prevented.


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