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:
Sep. 17, 2024
Filed:
May. 30, 2018
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A blade vibration monitoring device includes: a rotary machine including a rotating shaft that extends along an axis, and a plurality of moving blades having moving blade bodies that extend radially outward in a radial direction from the rotating shaft, and shrouds that are provided at tips of the moving blade bodies and are in contact with each other in a circumferential direction; and a sensor that is provided on the outside of the shroud in the radial direction to face the shroud, and is configured to detect a change in an outer circumferential surface of the shroud, in which the outer circumferential surface of the shroud includes a first surface, and a second surface which is disposed to be interposed between the first surfaces from both sides in the circumferential direction, and in which a detection signal from the sensor is different from that of the first surface.