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:
Jul. 10, 2018
Filed:
Feb. 27, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Daisuke Nomura, Kawasaki, JP;
Akihiro Onoda, Yokohama, JP;
Junichi Tominaga, Yokohama, JP;
Shinichiro Ohashi, Ota-ku, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
A steam turbineof an embodiment includes a turbine rotor, rotor blade cascadeshaving rotor blades, stationary blade cascadeshaving stationary blades, and a steam passageformed on a turbine stage, among turbine stages, including the rotor blades each having a blade height equal to or more than a blade height at which a loss generated when a leakage steam flown between a diaphragm inner ringand the turbine rotorjets into a main steam and a benefit brought by increasing the blade height of each of the rotor bladesin accordance with an increase in a flow rate of the main steam by an amount of the leakage steam are cancelled, and leading the leakage steam from an upstream side to a downstream side of a rotor disk