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. 18, 2019
Filed:
Dec. 29, 2015
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-shi, Kanagawa, JP;
Takayasu Tanaka, Yokohama, JP;
Kenichi Hattori, Yokohama, JP;
Yukihiro Yamamoto, Yokohama, JP;
Kenichi Tomita, Yokohama, JP;
Kengo Iwashige, Yokohama, JP;
Kenichi Tohrisawa, Yokohama, JP;
Yasunori Shigenaga, Yokohama, JP;
Tomoaki Yamashita, Tokyo, JP;
Makoto Hemmi, Tokyo, JP;
Tateki Nakamura, Yokohama, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-shi, JP;
Abstract
A hydro dynamic bearing device comprising an upper half of a main bearing and a lower half of the main bearing, wherein the upper half of the main bearing is lined with a low-strength metal such as a Babbitt metal, wherein a circumferential groove is formed in the lower half of the main bearing, and wherein the low-strength metal of the upper half of the main bearing, which is formed at a region opposed to a downstream side of the circumferential groove formed in the lower half of the main bearing, is partially removed to cause a high-strength bearing base metal to be partially exposed.