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:
Apr. 22, 2014
Filed:
Sep. 22, 2010
Takeshi Takeda, Hitachinaka, JP;
Takamoto Horiuchi, Hitachinaka, JP;
Hiroshi Ohira, Hitachinaka, JP;
Takahiro Hirai, Hitachinaka, JP;
Katsumi Kurihara, Nagoya, JP;
Takeshi Takeda, Hitachinaka, JP;
Takamoto Horiuchi, Hitachinaka, JP;
Hiroshi Ohira, Hitachinaka, JP;
Takahiro Hirai, Hitachinaka, JP;
Katsumi Kurihara, Nagoya, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
There is provided a four-cycle engine which can appropriately circulate oil in an engine regardless of a tilted condition with a simple structure. A crankcase () of a four-cycle engine () has a crank room () which rotatably supports a crankshaft () and an oil room () which is provided adjacent to the exterior of the crank room (). The crankcase () also has partition walls () and () which partition the interior of the crankcase () into the crank room () and the oil room (), respectively, and a communication path () which communicates the crank room () with the oil room (). The partition walls () and () each has a cross section formed in a substantially V shape, and the communication path () is formed at an apex between the partition walls () and ().