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. 13, 2017
Filed:
Apr. 08, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Tamiaki Nakazawa, Tokyo, JP;
Masaru Nishikatsu, Hyogo-ken, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A stack ring is formed by an outer ring and an inner ring and is inserted in an annular gap formed between an inlet sleeve and an inner casing. The outer periphery of the outer ring and the inner periphery of the inner ring each have a land part having a flat face and taper faces formed on upper and lower sides of the land part. A ratio of Lto Lis 0.3 to 0.7 where Lis a length of the land part and Lis a total length in the up-down direction. A ratio of S to Sis not less than 0.95 where S is an area of the cross sectional shape of the outer ring or the inner ring and Sis an area of a virtual rectangle BCDE and the taper faces have an inclined angle of 1° to 10°.