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:
Feb. 02, 2021
Filed:
Feb. 22, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A rotor-blade-side sealing apparatus is configured to seal leakage of working fluid between rotor blade rings connected to distal end portions of rotor blade main bodies attached so as to extend in a radial direction from a rotor main body configured to rotate about an axis in a casing, and an inner circumferential surface of the casing. The rotor-blade-side sealing apparatus includes a sealing fin protruding in the radial direction from a side of the inner circumferential surface of the casing toward one of the rotor blade rings and extending in a circumferential direction. The sealing fin includes: a first sealing-fin main body portion and a second sealing-fin main body portion separated from each other in the circumferential direction across a gap portion that is a discontinuity along the circumferential direction; and an extending portion extending toward an upstream side in an axial direction of the rotor main body.