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:
Jan. 31, 2012
Filed:
Jun. 24, 2008
Fumio Ootomo, Kanagawa, JP;
Hisashi Matsuda, Tokyo, JP;
Asako Inomata, Tokyo, JP;
Hiroyuki Kawagishi, Kanagawa, JP;
Yoshiki Niizeki, Tokyo, JP;
Naoki Shibukawa, Saitama, JP;
Hiroshi Kawakami, Kanagawa, JP;
Fumio Ootomo, Kanagawa, JP;
Hisashi Matsuda, Tokyo, JP;
Asako Inomata, Tokyo, JP;
Hiroyuki Kawagishi, Kanagawa, JP;
Yoshiki Niizeki, Tokyo, JP;
Naoki Shibukawa, Saitama, JP;
Hiroshi Kawakami, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A row of moving blades for a steam turbine has moving blades elongated radially which are arranged peripherally around and secured to a turbine rotor. The row also has an intermediate support structure for holding the blades to each other at a radially intermediate position. The support structure has a shape of a streamline cross section. The support structure may include a tie wire secured to the blades, or lugs protruding from the blades and combined to each other. The support structure may include lugs protruding from the blades to each other, and a sleeve combining the lugs. The shape of a streamline cross section may have an obtuse-angle or acute-angle upstream part.