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:
Mar. 25, 2008

Filed:

Feb. 27, 2007
Applicants:

Yoshiki Nagahashi, Saitama, JP;

Masaki Yoneyama, Saitama, JP;

Naoki Kono, Saitama, JP;

Kohji Minami, Saitama, JP;

Inventors:

Yoshiki Nagahashi, Saitama, JP;

Masaki Yoneyama, Saitama, JP;

Naoki Kono, Saitama, JP;

Kohji Minami, Saitama, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01P 1/06 (2006.01); H02K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an engine having a generator mounted thereon, an oil passage is formed within the engine's crankcase to supply oil to an oil jet for cooling one or more pistons. In addition, oil is supplied to an oil jet for cooling the generator, using the oil passage in common with the oil supply for cooling the piston, without requiring a separate, dedicated oil passage for the generator. The cooling oil delivery structure is provided for cooling the generator which is located at one end of the crankshaft. The oil passage for cooling pistons, which includes an oil jet for cooling each respective piston by jetting oil to the piston, is arranged on an axis substantially parallel to the crankshaft. A generator-cooling oil jet is provided on the crankcase at a terminal end of, and in fluid communication with the oil passage for cooling the pistons.


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