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:
Jun. 28, 2016
Filed:
Dec. 28, 2012
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Makoto Hemmi, Tokyo, JP;
Kenta Suzuki, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
There are provided a duplex bearing device that can reduce the temperature of lubricating oil supplied from a journal bearing to a thrust bearing and thereby can reduce the total amount of oil supplied, and a rotating machine equipped with this. A duplex bearing deviceis equipped with a tilting pad journal bearingthat accepts a radial load of a rotating shaft, and a thrust bearingthat is provided on an axial end of the journal bearingand accepts an axial load of the rotating shaftvia a thrust collarprovided on the outer peripheral side of the rotating shaft, and has a journal bearing oil supply paththat supplies the lubricating oil from the outside into between journal padsof the journal bearing, a thrust bearing oil supply paththat supplies the lubricating oil from the outside to the thrust bearing, and a re-used oil supply paththat supplies the lubricating oil to the thrust bearingonly from between the journal padsof the journal bearing