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:
Feb. 14, 2017
Filed:
Jul. 19, 2012
Giuseppe Iurisci, Florence, IT;
Angelo Grimaldi, Florence, IT;
Giuseppe Iurisci, Florence, IT;
Angelo Grimaldi, Florence, IT;
Nuovo Pignone SPA, Florence, IT;
Abstract
A multistage centrifugal turbomachine comprising a rotor assembly comprising a shaft carrying a first and a second impeller, and a stator comprising a passage for a fluid flowing from an outlet side of the first impeller to an inlet side of the second impeller, the passage comprising a diffuser downstream the outlet side of the first impeller), a return channel upstream the inlet side of the second impeller, a bend connecting the diffuser and the return channel, and a plurality of stator blades being provided in the return channel, wherein a portion of the return channel is delimited by the first impeller, the plurality of stator blades extending at least partially in the portion of the return channel.