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:
Dec. 31, 2013
Filed:
Oct. 19, 2010
Takanori Shibata, Hitachinaka, JP;
Manabu Yagi, Tsuchiura, JP;
Hideo Nishida, Kasumigaura, JP;
Hiromi Kobayashi, Kasumigaura, JP;
Masanori Tanaka, Tsuchiura, JP;
Takanori Shibata, Hitachinaka, JP;
Manabu Yagi, Tsuchiura, JP;
Hideo Nishida, Kasumigaura, JP;
Hiromi Kobayashi, Kasumigaura, JP;
Masanori Tanaka, Tsuchiura, JP;
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Abstract
Turbo machinery comprising an impeller and a diffuser positioned on a downstream side of the impeller that a channel wall surface of the diffuser is composed of a pair of a shroud side diffuser plate and a hub side diffuser plate which surface each other and a channel width is formed so as to be increased downstream, characterized in that guide vanes in a circular arc shape lower in height than the channel width are installed in a line of a plurality of vanes on both channel walls of the shroud side diffuser plate and hub side diffuser plate of the diffuser, and a total of vane heights of the two guide vanes at an outlet of the diffuser is set so as to be within a range from 30 to 70% of the channel width at the outlet of the diffuser.