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:
Jul. 29, 2014
Filed:
Feb. 20, 2013
Hitachi, Ltd., Tokyo, JP;
Kenta Suzuki, Hitachinaka, JP;
Makoto Hemmi, Mito, JP;
Tomoaki Inoue, Mito, JP;
Kenichi Murata, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a journal bearing device having an upper bearing liner, a lower bearing liner, an upper base metal and a lower base metal, the lower bearing liner is divided into a sliding portion having a sliding surface and a clearance portion provided with a space between the lower bearing liner and a rotor, and is provided with an oil path formed on a back side of the sliding portion and extending from a border portion between the sliding portion and the clearance portion toward an upstream side in the rotational direction of the rotor, and an oil supply hole extending from an upstream end portion of the oil path to the sliding surface, and the lower base metal has an oil supply path and extending from an outer circumferential side of the lower base metal to the oil path at the border portion.