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:
Mar. 31, 2020
Filed:
May. 10, 2017
Nidec Asi S.p.a., Cinisello Balsamo MI, IT;
Fabio Luise, Venice, IT;
Stefano Pieri, Ronchi dei Legionari, IT;
NIDEC ASI S.p.A., Cinisello Balsamo (MI), IT;
Abstract
An electric motor may include: a stator; a rotor; and a tubular sleeve. The stator may have a stator cavity with an axis extending in a longitudinal direction. The stator cavity may have a stator inlet for receiving a fluid and a stator outlet for discharging the fluid. The rotor may be arranged inside the stator cavity and be rotatable around the axis. The tubular sleeve may be arranged between the stator and the rotor, coaxial with the axis, and attached to the stator through attachment members. The tubular sleeve may be spaced from the stator by a first tubular gap, and from the rotor by a second tubular gap. The first tubular gap may extend along the longitudinal direction between a first gap inlet and a first gap outlet. The second tubular gap may extend along the longitudinal direction between a second gap inlet and a second gap outlet.