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:
Jul. 14, 2020
Filed:
Nov. 03, 2014
Applicant:
Nuovo Pignone Srl, Florence, IT;
Inventors:
Sergio Palomba, Florence, IT;
Dante Tommaso Rubino, Florence, IT;
Assignee:
NUOVO PIGNONE SRL, Florence, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/06 (2006.01); F04D 17/12 (2006.01); F04D 29/051 (2006.01); F04D 29/058 (2006.01); F04D 29/44 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 25/0606 (2013.01); F04D 17/12 (2013.01); F04D 29/051 (2013.01); F04D 29/058 (2013.01); F04D 29/4206 (2013.01); F04D 29/442 (2013.01); F04D 29/444 (2013.01); F04D 25/066 (2013.01);
Abstract
A shaftless motor-compressor is disclosed, comprising a casing and at least one compressor stage arranged in the casing. Each compressor stage comprises a respective impeller arranged for rotation in the casing around a rotation axis. Each impeller is combined with an embedded electric motor housed in the casing and comprised of a motor stator and a motor rotor. The motor stator of each compressor stage circumferentially surrounds the impeller and the motor rotor, integral with the impeller. The motor rotor of each stage is arranged inside the respective motor stator.