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:
May. 14, 2019
Filed:
Feb. 10, 2015
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara-shi, Kanagawa, JP;
Takaya Futae, Tokyo, JP;
Yasuaki Jinnai, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Takashi Nambu, Tokyo, JP;
Noriyuki Hayashi, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Kanagawa, JP;
Abstract
A floating-bush bearing device () for rotatably supporting a rotational shaft (), includes: a floating bush () having a cylindrical shape and including a bearing hole () into which the rotational shaft () is to be inserted; and a bearing housing () which rotatably houses the floating bush (). At least one of an inner peripheral surface () of the floating bush (), an outer peripheral surface () of the floating bush (), or an inner peripheral surface () of the bearing housing () includes, in a cross section in an axial direction thereof, a plurality of land portions () having a true arc shape which is a part of a true circular shape, and a plurality of recess portions () being disposed at a position recessed from the land portions, the recess portions being configured such that a distance between the recess portions and a virtual true circular line () passing through the land portions increases in a direction opposite from a rotational direction of the rotational shaft () from end portions () of the land portions opposite from the rotational direction of the rotational shaft.