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:
Jan. 16, 2001
Filed:
Jan. 27, 2000
Siemens Canada Limited, Mississauga, CA;
Abstract
A brushless electric motor,includes a stator assembly,defining an interior chamber,. The stator assembly includes a stator core,and windings,. The windings and at least a portion,of the stator core are in open communication with the interior chamber. A rotor assembly,is provided in the interior chamber. An electronic control unit,is coupled to the stator assembly and has an upper surface,in communication with the interior chamber. A fluid flow path structure,is constructed and arranged to permit fluid to pass from an inlet in the stator assembly and enter the interior chamber so that the rotor assembly, the windings, and the portion of said stator core are submerged in the fluid for cooling the rotor assembly, the windings, and the portion of the stator core. Fluid also contacts the upper surface of the electronic control unit to cool the electronic control unit. Fluid isolating structure,′ prevents fluid from contacting an end,of the windings.