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:
Oct. 23, 2007
Filed:
Feb. 09, 2006
Masahiro Nagahama, Sakai, JP;
Kozo Yoshida, Sakai, JP;
Yoshihiko Kawamoto, Sakai, JP;
Hiroshi Sasaki, Sakai, JP;
Takashi Onishi, Sakai, JP;
Mitsugu Okuda, Sakai, JP;
Nobuyuki Kobayashi, Sakai, JP;
Masahiro Nagahama, Sakai, JP;
Kozo Yoshida, Sakai, JP;
Yoshihiko Kawamoto, Sakai, JP;
Hiroshi Sasaki, Sakai, JP;
Takashi Onishi, Sakai, JP;
Mitsugu Okuda, Sakai, JP;
Nobuyuki Kobayashi, Sakai, JP;
Kubota Corporation, Osaka, JP;
Abstract
An engine comprises a crank case () provided with a lower opening portion (), which is covered with an oil pan () from below, and with a pair of left and right oil passages which extends in a front and rear direction along left and right lateral walls () and (). In this engine, the crank case () has the left and right lateral walls () and () provided with left and right ribs () and () extending in the front and rear direction. These left and right ribs () and () are raised inwards from the left and right lateral walls () and () of the crank case (). In order to provide left and right oil passages () and () in these left and right ribs () and (), these ribs () and () are positioned at the lower opening portion () of the crank case ().