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. 02, 2025
Filed:
Jan. 08, 2024
Flowserve Pte. Ltd., Singapore, SG;
Flowserve Pte. Ltd., Singapore, SG;
Abstract
An integral motor pump (IMP) or integral motor turbine (IMT) includes an axial field permanent magnet synchronous motor (PMSM) having a stator that is sealed by a disk-shaped non-conducting stator cover axially interposed between the stator and PMSM impeller, such that eddy currents are not generated in the stator cover by the rotating permanent magnets of the impeller. The stator cover can be annular, and can be fixed directly to the stator housing, or pressed against the stator housing by brackets. The seal can be formed by an adhesive, and/or by at least one gasket. Either the stator cover or the brackets can include flanges extending axially proximate the stator housing, and attached to the stator housing by any combination of an interference fit, an adhesive, set screws, or a protrusion extending into an indentation. In embodiments, the bracket flanges are welded to the stator housing.