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:
Dec. 28, 2021
Filed:
Feb. 02, 2017
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Yuji Masuda, Hiroshima, JP;
Abstract
A rotating machine includes: a rotary shaft that is configured to rotate about a center axis; an impeller that is fixed to the rotary shaft and that is configured to compress a working fluid by integrally rotating with the rotary shaft; a casing that covers the rotary shaft; a first seal portion that is disposed at a position away from the impeller in a center axis direction of the rotary shaft and that is configured to seal a portion between the rotary shaft and the casing with a seal gas; a second seal portion that is disposed between the impeller and the first seal portion and that is configured to seal a portion between the rotary shaft and the casing; and a gas supply path through which the seal gas is introduced into the first seal portion.