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. 02, 2015
Filed:
Mar. 15, 2012
Asako Inomata, Yokohama, JP;
Katsuya Yamashita, Tokyo, JP;
Kunihiko Wada, Yokohama, JP;
Kazuhiro Saito, Yokohama, JP;
Yusuke Suzuki, Yokohama, JP;
Takao Inukai, Kawasaki, JP;
Shogo Iwai, Yokohama, JP;
Takeo Suga, Yokohama, JP;
Asako Inomata, Yokohama, JP;
Katsuya Yamashita, Tokyo, JP;
Kunihiko Wada, Yokohama, JP;
Kazuhiro Saito, Yokohama, JP;
Yusuke Suzuki, Yokohama, JP;
Takao Inukai, Kawasaki, JP;
Shogo Iwai, Yokohama, JP;
Takeo Suga, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A steam turbineof an embodiment has seal ringsbetween an inlet sleevefor introducing steam and an inner casingand an outer casinginto which the inlet sleeveis inserted. The seal ringshave high-temperature side seal ringswhich are disposed their inner circumferences contacted to the outer circumference of the inlet sleeve, and low-temperature side seal ringswhich are formed to have inner and outer diameters larger than those of the high-temperature side seal ringsand disposed with their outer circumferences contacted to the inner casingor the outer casing. A thermal barrier layeris disposed between the inner circumferences of the high-temperature side seal ringsand the outer circumference of the inlet sleeveand between the high-temperature side seal ringsand the low-temperature side seal rings