Shaft sealing structure and reactor coolant pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10311984
APP PUB NO 20150221400A1
SERIAL NO

14421722

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hanada, Tomoki Tokyo, JP 11 72
Harada, Yuji Tokyo, JP 163 1999
Ikeda, Yasuhiro Tokyo, JP 103 550
Ito, Hitoshi Tokyo, JP 48 927
Kuzumi, Hiroshi Tokyo, JP 2 3
Matsuo, Toshihiko Tokyo, JP 27 234
Otani, Takanobu Tokyo, JP 4 11
Saeki, Kentarou Tokyo, JP 3 8
Sakai, Masaru Tokyo, JP 73 1022
Sakuma, Hiroomi Tokyo, JP 1 3
Takayama, Yasushi Tokyo, JP 14 40
Uehara, Hidekazu Tokyo, JP 52 391
Umeda, Akihiko Tokyo, JP 15 10

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