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:
Nov. 02, 2021
Filed:
Jul. 05, 2018
Applicant:
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Inventors:
Nao Taniguchi, Tokyo, JP;
Ryo Takata, Tokyo, JP;
Mitsuyoshi Tsuchiya, Yokohama, JP;
Yu Shibata, Yokohama, JP;
Assignee:
MITSUBISHI POWER, LTD., Yokohama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 9/02 (2006.01); F01D 5/14 (2006.01);
U.S. Cl.
CPC ...
F01D 9/02 (2013.01); F01D 5/145 (2013.01); F01D 5/147 (2013.01); F05D 2220/31 (2013.01); F05D 2240/122 (2013.01); F05D 2240/124 (2013.01); F05D 2240/128 (2013.01); F05D 2250/712 (2013.01); F05D 2260/202 (2013.01);
Abstract
A turbine nozzle includes a plurality of blades arranged so as to form a tapered flow passage between each two adjacent blades. A suction surface of each blade includes a curved surface, and a throat of the flow passage is formed between the curved surface of one blade and a trailing edge of the other blade of the two adjacent blades at a throat position. An upstream end of the curved surface is positioned upstream of the throat position, and a downstream end of the curved surface is positioned downstream of the throat position.