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. 12, 2023
Filed:
Nov. 19, 2021
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Yasuhiro Sasao, Tokyo, JP;
Soichiro Tabata, Tokyo, JP;
Ryo Takata, Tokyo, JP;
Chongfei Duan, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
Provided is a steam turbine rotor blade having, at an intermediate position in a blade length direction thereof, a tie boss for connection to an adjacent blade, wherein the steam turbine rotor blade includes a leading edge side protrusion that is extending in an embankment shape in a blade chord length direction at an intermediate position in the blade length direction, a start end and a terminal end of the leading edge side protrusion are located on a suction side surface and a pressure side surface, respectively, and the leading edge side protrusion continues from the start end to the terminal end via a blade leading edge and arrangement thereof in the blade length direction overlaps with the tie boss as viewed from the upstream side.