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:
Jun. 04, 2019
Filed:
Sep. 27, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Kentarou Saeki, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
Akihiko Umeda, Tokyo, JP;
Masaru Sakai, Tokyo, JP;
Hiroshi Kuzumi, Tokyo, JP;
Yasuhiro Ikeda, Tokyo, JP;
Toshihiko Matsuo, Tokyo, JP;
Takanobu Otani, Tokyo, JP;
Hiroomi Sakuma, Tokyo, JP;
Hitoshi Ito, Tokyo, JP;
Yasushi Takayama, Tokyo, JP;
Tomoki Hanada, Tokyo, JP;
Yuji Harada, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
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.