Francis-type turbine runner and Francis-type turbine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11566595
APP PUB NO 20210207569A1
SERIAL NO

17122046

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Abstract

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According to an embodiment, the vane 13 has a thick root portion 16P formed on the band 12 side of a pressure surface to be joined to the band 12, with a thickness of the thick root portion 16P being gradually increased toward the band 12, and a thick root portion 16N formed on the band 12 side of a negative pressure surface to be joined to the band 12, with a thickness of the thick root portion 16N being gradually increased toward the band 12. The outlet end 15 has a first curved portion 151 and a second curved portion 152. An extreme point 15B forming a bottom end of the second curved portion 152 is positioned closer to the band 12 than an end of the thick root portion 16P, 16N on the crown 11 side.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBAKANAGAWA KANAGAWA
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION72-34 HORIKAWA-CHO SAIWAI-KU KAWASAKI-SHI KANAGAWA 2120013 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mukai, Takero Yokohama Kanagawa, JP 4 0
Nakazono, Masahiko Kawasaki Kanagawa, JP 9 8

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