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. 16, 2021
Filed:
Sep. 11, 2014
Applicant:
Nuovo Pignone Srl, Florence, IT;
Inventors:
Alberto Scotti Del Greco, Florence, IT;
Andrea Arnone, Florence, IT;
Matteo Checcucci, Florence, IT;
Filippo Rubechini, Florence, IT;
Assignee:
NUOVO PIGNONE SRL, Florence, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F04D 29/44 (2006.01); F04D 29/24 (2006.01); F04D 17/12 (2006.01); F04D 29/30 (2006.01);
U.S. Cl.
CPC ...
F04D 29/441 (2013.01); F04D 17/12 (2013.01); F04D 17/122 (2013.01); F04D 29/242 (2013.01); F04D 29/284 (2013.01); F04D 29/286 (2013.01); F04D 29/289 (2013.01); F04D 29/30 (2013.01); F05D 2240/303 (2013.01);
Abstract
In order to reduce erosion of an impeller due to liquid droplets in an incoming flow of gas, the impeller comprises converging-diverging bottlenecks; the incoming flow passes through the bottlenecks so that the speed of the gas at the inlet of the impeller first suddenly and substantially increases and then suddenly and substantially decreases; furthermore, the impeller is configured so that, internally after its inlet, the incoming flow is deviated gradually in the meridional plane.